Merge branch 'topic/ctxfi' into for-linus

* topic/ctxfi: (35 commits)
  ALSA: ctxfi - Clear PCM resources at hw_params and hw_free
  ALSA: ctxfi - Check the presence of SRC instance in PCM pointer callbacks
  ALSA: ctxfi - Add missing start check in atc_pcm_playback_start()
  ALSA: ctxfi - Add use_system_timer module option
  ALSA: ctxfi - Fix wrong model id for UAA
  ALSA: ctxfi - Clean up probe routines
  ALSA: ctxfi - Fix / clean up hw20k2 chip code
  ALSA: ctxfi - Fix possible buffer pointer overrun
  ALSA: ctxfi - Remove useless initializations and cast
  ALSA: ctxfi - Fix DMA mask for emu20k2 chip
  ALSA: ctxfi - Make volume controls more intuitive
  ALSA: ctxfi - Optimize the native timer handling using wc counter
  ALSA: ctxfi - Add missing inclusion of linux/math64.h
  ALSA: ctxfi - Set device 0 for mixer control elements
  ALSA: ctxfi - Clean up / optimize
  ALSA: ctxfi - Set periods_min to 2
  ALSA: ctxfi - Use native timer interrupt on emu20k1
  ALSA: ctxfi - Fix previous fix for 64bit DMA
  ALSA: ctxfi - Fix endian-dependent codes
  ALSA: ctxfi - Allow 64bit DMA
  ...

32 files changed, 12828 insertions, 0 deletions

diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig
index 93422e3a3f0c..3a7640feaf92 100644
--- a/sound/pci/Kconfig
+++ b/sound/pci/Kconfig
@@ -275,6 +275,16 @@ config SND_CS5535AUDIO
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-cs5535audio.
 
+config SND_CTXFI
+	tristate "Creative Sound Blaster X-Fi"
+	select SND_PCM
+	help
+	  If you want to use soundcards based on Creative Sound Blastr X-Fi
+	  boards with 20k1 or 20k2 chips, say Y here.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd-ctxfi.
+
 config SND_DARLA20
 	tristate "(Echoaudio) Darla20"
 	select FW_LOADER
diff --git a/sound/pci/Makefile b/sound/pci/Makefile
index 65b25d221cd2..6a1281ec01e3 100644
--- a/sound/pci/Makefile
+++ b/sound/pci/Makefile
@@ -59,6 +59,7 @@ obj-$(CONFIG_SND) += \
 	ali5451/ \
 	au88x0/ \
 	aw2/ \
+	ctxfi/ \
 	ca0106/ \
 	cs46xx/ \
 	cs5535audio/ \
diff --git a/sound/pci/ctxfi/Makefile b/sound/pci/ctxfi/Makefile
new file mode 100644
index 000000000000..15075f89e98a
--- /dev/null
+++ b/sound/pci/ctxfi/Makefile
@@ -0,0 +1,5 @@
+snd-ctxfi-objs := xfi.o ctatc.o ctvmem.o ctpcm.o ctmixer.o ctresource.o \
+	ctsrc.o ctamixer.o ctdaio.o ctimap.o cthardware.o cttimer.o \
+	cthw20k2.o cthw20k1.o
+
+obj-$(CONFIG_SND_CTXFI) += snd-ctxfi.o
diff --git a/sound/pci/ctxfi/ct20k1reg.h b/sound/pci/ctxfi/ct20k1reg.h
new file mode 100644
index 000000000000..f2e34e3f27ee
--- /dev/null
+++ b/sound/pci/ctxfi/ct20k1reg.h
@@ -0,0 +1,636 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ */
+
+#ifndef CT20K1REG_H
+#define CT20k1REG_H
+
+/* 20k1 registers */
+#define 	DSPXRAM_START 			0x000000
+#define 	DSPXRAM_END 			0x013FFC
+#define 	DSPAXRAM_START 			0x020000
+#define 	DSPAXRAM_END 			0x023FFC
+#define 	DSPYRAM_START 			0x040000
+#define 	DSPYRAM_END 			0x04FFFC
+#define 	DSPAYRAM_START 			0x020000
+#define 	DSPAYRAM_END 			0x063FFC
+#define 	DSPMICRO_START 			0x080000
+#define 	DSPMICRO_END 			0x0B3FFC
+#define 	DSP0IO_START 			0x100000
+#define 	DSP0IO_END	 		0x101FFC
+#define 	AUDIORINGIPDSP0_START 		0x100000
+#define 	AUDIORINGIPDSP0_END 		0x1003FC
+#define 	AUDIORINGOPDSP0_START 		0x100400
+#define 	AUDIORINGOPDSP0_END 		0x1007FC
+#define 	AUDPARARINGIODSP0_START 	0x100800
+#define 	AUDPARARINGIODSP0_END	 	0x100BFC
+#define 	DSP0LOCALHWREG_START 		0x100C00
+#define 	DSP0LOCALHWREG_END	 	0x100C3C
+#define 	DSP0XYRAMAGINDEX_START 		0x100C40
+#define 	DSP0XYRAMAGINDEX_END	 	0x100C5C
+#define 	DSP0XYRAMAGMDFR_START 		0x100C60
+#define 	DSP0XYRAMAGMDFR_END	 	0x100C7C
+#define 	DSP0INTCONTLVEC_START 		0x100C80
+#define 	DSP0INTCONTLVEC_END	 	0x100CD8
+#define 	INTCONTLGLOBALREG_START 	0x100D1C
+#define 	INTCONTLGLOBALREG_END	 	0x100D3C
+#define		HOSTINTFPORTADDRCONTDSP0	0x100D40
+#define		HOSTINTFPORTDATADSP0		0x100D44
+#define		TIME0PERENBDSP0			0x100D60
+#define		TIME0COUNTERDSP0		0x100D64
+#define		TIME1PERENBDSP0			0x100D68
+#define		TIME1COUNTERDSP0		0x100D6C
+#define		TIME2PERENBDSP0			0x100D70
+#define		TIME2COUNTERDSP0		0x100D74
+#define		TIME3PERENBDSP0			0x100D78
+#define		TIME3COUNTERDSP0		0x100D7C
+#define 	XRAMINDOPERREFNOUP_STARTDSP0 	0x100D80
+#define 	XRAMINDOPERREFNOUP_ENDDSP0	0x100D9C
+#define 	XRAMINDOPERREFUP_STARTDSP0	0x100DA0
+#define 	XRAMINDOPERREFUP_ENDDSP0	0x100DBC
+#define 	YRAMINDOPERREFNOUP_STARTDSP0 	0x100DC0
+#define 	YRAMINDOPERREFNOUP_ENDDSP0 	0x100DDC
+#define 	YRAMINDOPERREFUP_STARTDSP0	0x100DE0
+#define 	YRAMINDOPERREFUP_ENDDSP0 	0x100DFC
+#define 	DSP0CONDCODE 			0x100E00
+#define 	DSP0STACKFLAG 			0x100E04
+#define 	DSP0PROGCOUNTSTACKPTREG 	0x100E08
+#define 	DSP0PROGCOUNTSTACKDATAREG 	0x100E0C
+#define 	DSP0CURLOOPADDRREG 		0x100E10
+#define 	DSP0CURLOOPCOUNT 		0x100E14
+#define 	DSP0TOPLOOPCOUNTSTACK 		0x100E18
+#define 	DSP0TOPLOOPADDRSTACK 		0x100E1C
+#define 	DSP0LOOPSTACKPTR 		0x100E20
+#define 	DSP0STASSTACKDATAREG 		0x100E24
+#define 	DSP0STASSTACKPTR 		0x100E28
+#define 	DSP0PROGCOUNT 			0x100E2C
+#define  	GLOBDSPDEBGREG			0x100E30
+#define  	GLOBDSPBREPTRREG		0x100E30
+#define 	DSP0XYRAMBASE_START 		0x100EA0
+#define 	DSP0XYRAMBASE_END 		0x100EBC
+#define 	DSP0XYRAMLENG_START 		0x100EC0
+#define 	DSP0XYRAMLENG_END 		0x100EDC
+#define		SEMAPHOREREGDSP0		0x100EE0
+#define		DSP0INTCONTMASKREG		0x100EE4
+#define		DSP0INTCONTPENDREG		0x100EE8
+#define		DSP0INTCONTSERVINT		0x100EEC
+#define		DSPINTCONTEXTINTMODREG		0x100EEC
+#define		GPIODSP0			0x100EFC
+#define 	DMADSPBASEADDRREG_STARTDSP0	0x100F00
+#define 	DMADSPBASEADDRREG_ENDDSP0	0x100F1C
+#define 	DMAHOSTBASEADDRREG_STARTDSP0	0x100F20
+#define 	DMAHOSTBASEADDRREG_ENDDSP0	0x100F3C
+#define 	DMADSPCURADDRREG_STARTDSP0	0x100F40
+#define 	DMADSPCURADDRREG_ENDDSP0	0x100F5C
+#define 	DMAHOSTCURADDRREG_STARTDSP0	0x100F60
+#define 	DMAHOSTCURADDRREG_ENDDSP0	0x100F7C
+#define 	DMATANXCOUNTREG_STARTDSP0	0x100F80
+#define 	DMATANXCOUNTREG_ENDDSP0		0x100F9C
+#define 	DMATIMEBUGREG_STARTDSP0		0x100FA0
+#define 	DMATIMEBUGREG_ENDDSP0		0x100FAC
+#define 	DMACNTLMODFREG_STARTDSP0	0x100FA0
+#define 	DMACNTLMODFREG_ENDDSP0		0x100FAC
+
+#define 	DMAGLOBSTATSREGDSP0		0x100FEC
+#define 	DSP0XGPRAM_START 		0x101000
+#define 	DSP0XGPRAM_END 			0x1017FC
+#define 	DSP0YGPRAM_START 		0x101800
+#define 	DSP0YGPRAM_END 			0x101FFC
+
+
+
+
+#define 	AUDIORINGIPDSP1_START 		0x102000
+#define 	AUDIORINGIPDSP1_END	 	0x1023FC
+#define 	AUDIORINGOPDSP1_START 		0x102400
+#define 	AUDIORINGOPDSP1_END	 	0x1027FC
+#define 	AUDPARARINGIODSP1_START 	0x102800
+#define 	AUDPARARINGIODSP1_END	 	0x102BFC
+#define 	DSP1LOCALHWREG_START 		0x102C00
+#define 	DSP1LOCALHWREG_END	 	0x102C3C
+#define 	DSP1XYRAMAGINDEX_START 		0x102C40
+#define 	DSP1XYRAMAGINDEX_END	 	0x102C5C
+#define 	DSP1XYRAMAGMDFR_START 		0x102C60
+#define 	DSP1XYRAMAGMDFR_END	 	0x102C7C
+#define 	DSP1INTCONTLVEC_START 		0x102C80
+#define 	DSP1INTCONTLVEC_END	 	0x102CD8
+#define		HOSTINTFPORTADDRCONTDSP1	0x102D40
+#define		HOSTINTFPORTDATADSP1		0x102D44
+#define		TIME0PERENBDSP1			0x102D60
+#define		TIME0COUNTERDSP1		0x102D64
+#define		TIME1PERENBDSP1			0x102D68
+#define		TIME1COUNTERDSP1		0x102D6C
+#define		TIME2PERENBDSP1			0x102D70
+#define		TIME2COUNTERDSP1		0x102D74
+#define		TIME3PERENBDSP1			0x102D78
+#define		TIME3COUNTERDSP1		0x102D7C
+#define 	XRAMINDOPERREFNOUP_STARTDSP1 	0x102D80
+#define 	XRAMINDOPERREFNOUP_ENDDSP1	0x102D9C
+#define 	XRAMINDOPERREFUP_STARTDSP1	0x102DA0
+#define 	XRAMINDOPERREFUP_ENDDSP1	0x102DBC
+#define 	YRAMINDOPERREFNOUP_STARTDSP1 	0x102DC0
+#define 	YRAMINDOPERREFNOUP_ENDDSP1	0x102DDC
+#define 	YRAMINDOPERREFUP_STARTDSP1	0x102DE0
+#define 	YRAMINDOPERREFUP_ENDDSP1	0x102DFC
+
+#define 	DSP1CONDCODE 			0x102E00
+#define 	DSP1STACKFLAG 			0x102E04
+#define 	DSP1PROGCOUNTSTACKPTREG 	0x102E08
+#define 	DSP1PROGCOUNTSTACKDATAREG 	0x102E0C
+#define 	DSP1CURLOOPADDRREG 		0x102E10
+#define 	DSP1CURLOOPCOUNT 		0x102E14
+#define 	DSP1TOPLOOPCOUNTSTACK 		0x102E18
+#define 	DSP1TOPLOOPADDRSTACK 		0x102E1C
+#define 	DSP1LOOPSTACKPTR 		0x102E20
+#define 	DSP1STASSTACKDATAREG 		0x102E24
+#define 	DSP1STASSTACKPTR 		0x102E28
+#define 	DSP1PROGCOUNT 			0x102E2C
+#define 	DSP1XYRAMBASE_START 		0x102EA0
+#define 	DSP1XYRAMBASE_END 		0x102EBC
+#define 	DSP1XYRAMLENG_START 		0x102EC0
+#define 	DSP1XYRAMLENG_END 		0x102EDC
+#define		SEMAPHOREREGDSP1		0x102EE0
+#define		DSP1INTCONTMASKREG		0x102EE4
+#define		DSP1INTCONTPENDREG		0x102EE8
+#define		DSP1INTCONTSERVINT		0x102EEC
+#define		GPIODSP1			0x102EFC
+#define 	DMADSPBASEADDRREG_STARTDSP1	0x102F00
+#define 	DMADSPBASEADDRREG_ENDDSP1	0x102F1C
+#define 	DMAHOSTBASEADDRREG_STARTDSP1	0x102F20
+#define 	DMAHOSTBASEADDRREG_ENDDSP1	0x102F3C
+#define 	DMADSPCURADDRREG_STARTDSP1	0x102F40
+#define 	DMADSPCURADDRREG_ENDDSP1	0x102F5C
+#define 	DMAHOSTCURADDRREG_STARTDSP1	0x102F60
+#define 	DMAHOSTCURADDRREG_ENDDSP1	0x102F7C
+#define 	DMATANXCOUNTREG_STARTDSP1	0x102F80
+#define 	DMATANXCOUNTREG_ENDDSP1		0x102F9C
+#define 	DMATIMEBUGREG_STARTDSP1		0x102FA0
+#define 	DMATIMEBUGREG_ENDDSP1		0x102FAC
+#define 	DMACNTLMODFREG_STARTDSP1	0x102FA0
+#define 	DMACNTLMODFREG_ENDDSP1		0x102FAC
+
+#define 	DMAGLOBSTATSREGDSP1		0x102FEC
+#define 	DSP1XGPRAM_START 		0x103000
+#define 	DSP1XGPRAM_END 			0x1033FC
+#define 	DSP1YGPRAM_START 		0x103400
+#define 	DSP1YGPRAM_END 			0x1037FC
+
+
+
+#define 	AUDIORINGIPDSP2_START 		0x104000
+#define 	AUDIORINGIPDSP2_END	 	0x1043FC
+#define 	AUDIORINGOPDSP2_START 		0x104400
+#define 	AUDIORINGOPDSP2_END	 	0x1047FC
+#define 	AUDPARARINGIODSP2_START 	0x104800
+#define 	AUDPARARINGIODSP2_END	 	0x104BFC
+#define 	DSP2LOCALHWREG_START 		0x104C00
+#define 	DSP2LOCALHWREG_END	 	0x104C3C
+#define 	DSP2XYRAMAGINDEX_START 		0x104C40
+#define 	DSP2XYRAMAGINDEX_END	 	0x104C5C
+#define 	DSP2XYRAMAGMDFR_START 		0x104C60
+#define 	DSP2XYRAMAGMDFR_END		0x104C7C
+#define 	DSP2INTCONTLVEC_START 		0x104C80
+#define 	DSP2INTCONTLVEC_END	 	0x104CD8
+#define		HOSTINTFPORTADDRCONTDSP2	0x104D40
+#define		HOSTINTFPORTDATADSP2		0x104D44
+#define		TIME0PERENBDSP2			0x104D60
+#define		TIME0COUNTERDSP2		0x104D64
+#define		TIME1PERENBDSP2			0x104D68
+#define		TIME1COUNTERDSP2		0x104D6C
+#define		TIME2PERENBDSP2			0x104D70
+#define		TIME2COUNTERDSP2		0x104D74
+#define		TIME3PERENBDSP2			0x104D78
+#define		TIME3COUNTERDSP2		0x104D7C
+#define 	XRAMINDOPERREFNOUP_STARTDSP2 	0x104D80
+#define 	XRAMINDOPERREFNOUP_ENDDSP2	0x104D9C
+#define 	XRAMINDOPERREFUP_STARTDSP2	0x104DA0
+#define 	XRAMINDOPERREFUP_ENDDSP2	0x104DBC
+#define 	YRAMINDOPERREFNOUP_STARTDSP2 	0x104DC0
+#define 	YRAMINDOPERREFNOUP_ENDDSP2	0x104DDC
+#define 	YRAMINDOPERREFUP_STARTDSP2	0x104DE0
+#define 	YRAMINDOPERREFUP_ENDDSP2 	0x104DFC
+#define 	DSP2CONDCODE 			0x104E00
+#define 	DSP2STACKFLAG 			0x104E04
+#define 	DSP2PROGCOUNTSTACKPTREG 	0x104E08
+#define 	DSP2PROGCOUNTSTACKDATAREG 	0x104E0C
+#define 	DSP2CURLOOPADDRREG 		0x104E10
+#define 	DSP2CURLOOPCOUNT 		0x104E14
+#define 	DSP2TOPLOOPCOUNTSTACK 		0x104E18
+#define 	DSP2TOPLOOPADDRSTACK 		0x104E1C
+#define 	DSP2LOOPSTACKPTR 		0x104E20
+#define 	DSP2STASSTACKDATAREG 		0x104E24
+#define 	DSP2STASSTACKPTR 		0x104E28
+#define 	DSP2PROGCOUNT 			0x104E2C
+#define 	DSP2XYRAMBASE_START 		0x104EA0
+#define 	DSP2XYRAMBASE_END 		0x104EBC
+#define 	DSP2XYRAMLENG_START 		0x104EC0
+#define 	DSP2XYRAMLENG_END 		0x104EDC
+#define		SEMAPHOREREGDSP2		0x104EE0
+#define		DSP2INTCONTMASKREG		0x104EE4
+#define		DSP2INTCONTPENDREG		0x104EE8
+#define		DSP2INTCONTSERVINT		0x104EEC
+#define		GPIODSP2			0x104EFC
+#define 	DMADSPBASEADDRREG_STARTDSP2	0x104F00
+#define 	DMADSPBASEADDRREG_ENDDSP2	0x104F1C
+#define 	DMAHOSTBASEADDRREG_STARTDSP2	0x104F20
+#define 	DMAHOSTBASEADDRREG_ENDDSP2	0x104F3C
+#define 	DMADSPCURADDRREG_STARTDSP2	0x104F40
+#define 	DMADSPCURADDRREG_ENDDSP2	0x104F5C
+#define 	DMAHOSTCURADDRREG_STARTDSP2	0x104F60
+#define 	DMAHOSTCURADDRREG_ENDDSP2	0x104F7C
+#define 	DMATANXCOUNTREG_STARTDSP2	0x104F80
+#define 	DMATANXCOUNTREG_ENDDSP2		0x104F9C
+#define 	DMATIMEBUGREG_STARTDSP2		0x104FA0
+#define 	DMATIMEBUGREG_ENDDSP2		0x104FAC
+#define 	DMACNTLMODFREG_STARTDSP2	0x104FA0
+#define 	DMACNTLMODFREG_ENDDSP2		0x104FAC
+
+#define 	DMAGLOBSTATSREGDSP2		0x104FEC
+#define 	DSP2XGPRAM_START 		0x105000
+#define 	DSP2XGPRAM_END 			0x1051FC
+#define 	DSP2YGPRAM_START 		0x105800
+#define 	DSP2YGPRAM_END 			0x1059FC
+
+
+
+#define 	AUDIORINGIPDSP3_START 		0x106000
+#define 	AUDIORINGIPDSP3_END	 	0x1063FC
+#define 	AUDIORINGOPDSP3_START 		0x106400
+#define 	AUDIORINGOPDSP3_END	 	0x1067FC
+#define 	AUDPARARINGIODSP3_START 	0x106800
+#define 	AUDPARARINGIODSP3_END	 	0x106BFC
+#define 	DSP3LOCALHWREG_START 		0x106C00
+#define 	DSP3LOCALHWREG_END	 	0x106C3C
+#define 	DSP3XYRAMAGINDEX_START 		0x106C40
+#define 	DSP3XYRAMAGINDEX_END	 	0x106C5C
+#define 	DSP3XYRAMAGMDFR_START 		0x106C60
+#define 	DSP3XYRAMAGMDFR_END		0x106C7C
+#define 	DSP3INTCONTLVEC_START 		0x106C80
+#define 	DSP3INTCONTLVEC_END	 	0x106CD8
+#define		HOSTINTFPORTADDRCONTDSP3	0x106D40
+#define		HOSTINTFPORTDATADSP3		0x106D44
+#define		TIME0PERENBDSP3			0x106D60
+#define		TIME0COUNTERDSP3		0x106D64
+#define		TIME1PERENBDSP3			0x106D68
+#define		TIME1COUNTERDSP3		0x106D6C
+#define		TIME2PERENBDSP3			0x106D70
+#define		TIME2COUNTERDSP3		0x106D74
+#define		TIME3PERENBDSP3			0x106D78
+#define		TIME3COUNTERDSP3		0x106D7C
+#define 	XRAMINDOPERREFNOUP_STARTDSP3 	0x106D80
+#define 	XRAMINDOPERREFNOUP_ENDDSP3	0x106D9C
+#define 	XRAMINDOPERREFUP_STARTDSP3	0x106DA0
+#define 	XRAMINDOPERREFUP_ENDDSP3	0x106DBC
+#define 	YRAMINDOPERREFNOUP_STARTDSP3 	0x106DC0
+#define 	YRAMINDOPERREFNOUP_ENDDSP3	0x106DDC
+#define 	YRAMINDOPERREFUP_STARTDSP3	0x106DE0
+#define 	YRAMINDOPERREFUP_ENDDSP3	0x100DFC
+
+#define 	DSP3CONDCODE 			0x106E00
+#define 	DSP3STACKFLAG 			0x106E04
+#define 	DSP3PROGCOUNTSTACKPTREG 	0x106E08
+#define 	DSP3PROGCOUNTSTACKDATAREG 	0x106E0C
+#define 	DSP3CURLOOPADDRREG 		0x106E10
+#define 	DSP3CURLOOPCOUNT 		0x106E14
+#define 	DSP3TOPLOOPCOUNTSTACK 		0x106E18
+#define 	DSP3TOPLOOPADDRSTACK 		0x106E1C
+#define 	DSP3LOOPSTACKPTR 		0x106E20
+#define 	DSP3STASSTACKDATAREG 		0x106E24
+#define 	DSP3STASSTACKPTR 		0x106E28
+#define 	DSP3PROGCOUNT 			0x106E2C
+#define 	DSP3XYRAMBASE_START 		0x106EA0
+#define 	DSP3XYRAMBASE_END 		0x106EBC
+#define 	DSP3XYRAMLENG_START 		0x106EC0
+#define 	DSP3XYRAMLENG_END 		0x106EDC
+#define		SEMAPHOREREGDSP3		0x106EE0
+#define		DSP3INTCONTMASKREG		0x106EE4
+#define		DSP3INTCONTPENDREG		0x106EE8
+#define		DSP3INTCONTSERVINT		0x106EEC
+#define		GPIODSP3			0x106EFC
+#define 	DMADSPBASEADDRREG_STARTDSP3	0x106F00
+#define 	DMADSPBASEADDRREG_ENDDSP3	0x106F1C
+#define 	DMAHOSTBASEADDRREG_STARTDSP3	0x106F20
+#define 	DMAHOSTBASEADDRREG_ENDDSP3	0x106F3C
+#define 	DMADSPCURADDRREG_STARTDSP3	0x106F40
+#define 	DMADSPCURADDRREG_ENDDSP3	0x106F5C
+#define 	DMAHOSTCURADDRREG_STARTDSP3	0x106F60
+#define 	DMAHOSTCURADDRREG_ENDDSP3	0x106F7C
+#define 	DMATANXCOUNTREG_STARTDSP3	0x106F80
+#define 	DMATANXCOUNTREG_ENDDSP3		0x106F9C
+#define 	DMATIMEBUGREG_STARTDSP3		0x106FA0
+#define 	DMATIMEBUGREG_ENDDSP3		0x106FAC
+#define 	DMACNTLMODFREG_STARTDSP3	0x106FA0
+#define 	DMACNTLMODFREG_ENDDSP3		0x106FAC
+
+#define 	DMAGLOBSTATSREGDSP3		0x106FEC
+#define 	DSP3XGPRAM_START 		0x107000
+#define 	DSP3XGPRAM_END 			0x1071FC
+#define 	DSP3YGPRAM_START 		0x107800
+#define 	DSP3YGPRAM_END 			0x1079FC
+
+/* end of DSP reg definitions */
+
+#define  	DSPAIMAP_START			0x108000
+#define  	DSPAIMAP_END			0x1083FC
+#define  	DSPPIMAP_START			0x108400
+#define  	DSPPIMAP_END			0x1087FC
+#define  	DSPPOMAP_START			0x108800
+#define  	DSPPOMAP_END			0x108BFC
+#define  	DSPPOCTL			0x108C00
+#define 	TKCTL_START			0x110000
+#define 	TKCTL_END			0x110FFC
+#define 	TKCC_START			0x111000
+#define 	TKCC_END			0x111FFC
+#define 	TKIMAP_START			0x112000
+#define 	TKIMAP_END			0x112FFC
+#define		TKDCTR16			0x113000
+#define		TKPB16				0x113004
+#define		TKBS16				0x113008
+#define		TKDCTR32			0x11300C
+#define		TKPB32				0x113010
+#define		TKBS32				0x113014
+#define		ICDCTR16			0x113018
+#define		ITBS16				0x11301C
+#define		ICDCTR32			0x113020
+#define		ITBS32				0x113024
+#define		ITSTART				0x113028
+#define		TKSQ				0x11302C
+
+#define		TKSCCTL_START			0x114000
+#define		TKSCCTL_END			0x11403C
+#define		TKSCADR_START			0x114100
+#define		TKSCADR_END			0x11413C
+#define		TKSCDATAX_START			0x114800
+#define		TKSCDATAX_END			0x1149FC
+#define		TKPCDATAX_START			0x120000
+#define		TKPCDATAX_END			0x12FFFC
+
+#define		MALSA				0x130000
+#define		MAPPHA				0x130004
+#define		MAPPLA				0x130008
+#define		MALSB				0x130010
+#define		MAPPHB				0x130014
+#define		MAPPLB				0x130018
+
+#define 	TANSPORTMAPABREGS_START		0x130020
+#define 	TANSPORTMAPABREGS_END		0x13A2FC
+
+#define		PTPAHX				0x13B000
+#define		PTPALX				0x13B004
+
+#define		TANSPPAGETABLEPHYADDR015_START	0x13B008
+#define		TANSPPAGETABLEPHYADDR015_END	0x13B07C
+#define		TRNQADRX_START			0x13B100
+#define		TRNQADRX_END			0x13B13C
+#define		TRNQTIMX_START			0x13B200
+#define		TRNQTIMX_END			0x13B23C
+#define		TRNQAPARMX_START		0x13B300
+#define		TRNQAPARMX_END			0x13B33C
+
+#define		TRNQCNT				0x13B400
+#define		TRNCTL				0x13B404
+#define		TRNIS				0x13B408
+#define		TRNCURTS			0x13B40C
+
+#define		AMOP_START			0x140000
+#define		AMOPLO				0x140000
+#define		AMOPHI				0x140004
+#define		AMOP_END			0x147FFC
+#define		PMOP_START			0x148000
+#define		PMOPLO				0x148000
+#define		PMOPHI				0x148004
+#define		PMOP_END			0x14FFFC
+#define		PCURR_START			0x150000
+#define		PCURR_END			0x153FFC
+#define		PTRAG_START			0x154000
+#define		PTRAG_END			0x157FFC
+#define		PSR_START			0x158000
+#define		PSR_END				0x15BFFC
+
+#define		PFSTAT4SEG_START		0x160000
+#define		PFSTAT4SEG_END			0x160BFC
+#define		PFSTAT2SEG_START		0x160C00
+#define		PFSTAT2SEG_END			0x1617FC
+#define		PFTARG4SEG_START		0x164000
+#define		PFTARG4SEG_END			0x164BFC
+#define		PFTARG2SEG_START		0x164C00
+#define		PFTARG2SEG_END			0x1657FC
+#define		PFSR4SEG_START			0x168000
+#define		PFSR4SEG_END			0x168BFC
+#define		PFSR2SEG_START			0x168C00
+#define		PFSR2SEG_END			0x1697FC
+#define		PCURRMS4SEG_START		0x16C000
+#define		PCURRMS4SEG_END			0x16CCFC
+#define		PCURRMS2SEG_START		0x16CC00
+#define		PCURRMS2SEG_END			0x16D7FC
+#define		PTARGMS4SEG_START		0x170000
+#define		PTARGMS4SEG_END			0x172FFC
+#define		PTARGMS2SEG_START		0x173000
+#define		PTARGMS2SEG_END			0x1747FC
+#define		PSRMS4SEG_START			0x170000
+#define		PSRMS4SEG_END			0x172FFC
+#define		PSRMS2SEG_START			0x173000
+#define		PSRMS2SEG_END			0x1747FC
+
+#define		PRING_LO_START			0x190000
+#define		PRING_LO_END			0x193FFC
+#define		PRING_HI_START			0x194000
+#define		PRING_HI_END			0x197FFC
+#define		PRING_LO_HI_START		0x198000
+#define		PRING_LO_HI			0x198000
+#define		PRING_LO_HI_END			0x19BFFC
+
+#define		PINTFIFO			0x1A0000
+#define		SRCCTL				0x1B0000
+#define		SRCCCR				0x1B0004
+#define		SRCIMAP				0x1B0008
+#define		SRCODDC				0x1B000C
+#define		SRCCA				0x1B0010
+#define		SRCCF				0x1B0014
+#define		SRCSA				0x1B0018
+#define		SRCLA				0x1B001C
+#define		SRCCTLSWR			0x1B0020
+
+/* SRC HERE */
+#define		SRCALBA				0x1B002C
+#define		SRCMCTL				0x1B012C
+#define		SRCCERR				0x1B022C
+#define		SRCITB				0x1B032C
+#define		SRCIPM				0x1B082C
+#define		SRCIP				0x1B102C
+#define		SRCENBSTAT			0x1B202C
+#define		SRCENBLO			0x1B212C
+#define		SRCENBHI			0x1B222C
+#define		SRCENBS				0x1B232C
+#define		SRCENB				0x1B282C
+#define		SRCENB07			0x1B282C
+#define		SRCENBS07			0x1B302C
+
+#define		SRCDN0Z				0x1B0030
+#define		SRCDN0Z0			0x1B0030
+#define		SRCDN0Z1			0x1B0034
+#define		SRCDN0Z2			0x1B0038
+#define		SRCDN0Z3			0x1B003C
+#define		SRCDN1Z				0x1B0040
+#define		SRCDN1Z0			0x1B0040
+#define		SRCDN1Z1			0x1B0044
+#define		SRCDN1Z2			0x1B0048
+#define		SRCDN1Z3			0x1B004C
+#define		SRCDN1Z4			0x1B0050
+#define		SRCDN1Z5			0x1B0054
+#define		SRCDN1Z6			0x1B0058
+#define		SRCDN1Z7			0x1B005C
+#define		SRCUPZ				0x1B0060
+#define		SRCUPZ0				0x1B0060
+#define		SRCUPZ1				0x1B0064
+#define		SRCUPZ2				0x1B0068
+#define		SRCUPZ3				0x1B006C
+#define		SRCUPZ4				0x1B0070
+#define		SRCUPZ5				0x1B0074
+#define		SRCUPZ6				0x1B0078
+#define		SRCUPZ7				0x1B007C
+#define		SRCCD0				0x1B0080
+#define		SRCCD1				0x1B0084
+#define		SRCCD2				0x1B0088
+#define		SRCCD3				0x1B008C
+#define		SRCCD4				0x1B0090
+#define		SRCCD5				0x1B0094
+#define		SRCCD6				0x1B0098
+#define		SRCCD7				0x1B009C
+#define		SRCCD8				0x1B00A0
+#define		SRCCD9				0x1B00A4
+#define		SRCCDA				0x1B00A8
+#define		SRCCDB				0x1B00AC
+#define		SRCCDC				0x1B00B0
+#define		SRCCDD				0x1B00B4
+#define		SRCCDE				0x1B00B8
+#define		SRCCDF				0x1B00BC
+#define		SRCCD10				0x1B00C0
+#define		SRCCD11				0x1B00C4
+#define		SRCCD12				0x1B00C8
+#define		SRCCD13				0x1B00CC
+#define		SRCCD14				0x1B00D0
+#define		SRCCD15				0x1B00D4
+#define		SRCCD16				0x1B00D8
+#define		SRCCD17				0x1B00DC
+#define		SRCCD18				0x1B00E0
+#define		SRCCD19				0x1B00E4
+#define		SRCCD1A				0x1B00E8
+#define		SRCCD1B				0x1B00EC
+#define		SRCCD1C				0x1B00F0
+#define		SRCCD1D				0x1B00F4
+#define		SRCCD1E				0x1B00F8
+#define		SRCCD1F				0x1B00FC
+
+#define		SRCCONTRBLOCK_START		0x1B0100
+#define		SRCCONTRBLOCK_END		0x1BFFFC
+#define		FILTOP_START	0x1C0000
+#define		FILTOP_END	0x1C05FC
+#define		FILTIMAP_START	0x1C0800
+#define		FILTIMAP_END	0x1C0DFC
+#define		FILTZ1_START	0x1C1000
+#define		FILTZ1_END	0x1C15FC
+#define		FILTZ2_START	0x1C1800
+#define		FILTZ2_END	0x1C1DFC
+#define		DAOIMAP_START	0x1C5000
+#define		DAOIMAP		0x1C5000
+#define		DAOIMAP_END	0x1C5124
+
+#define		AC97D		0x1C5400
+#define		AC97A		0x1C5404
+#define		AC97CTL		0x1C5408
+#define		I2SCTL		0x1C5420
+
+#define		SPOS		0x1C5440
+#define		SPOSA		0x1C5440
+#define		SPOSB		0x1C5444
+#define		SPOSC		0x1C5448
+#define		SPOSD		0x1C544C
+
+#define		SPISA		0x1C5450
+#define		SPISB		0x1C5454
+#define		SPISC		0x1C5458
+#define		SPISD		0x1C545C
+
+#define		SPFSCTL		0x1C5460
+
+#define		SPFS0		0x1C5468
+#define		SPFS1		0x1C546C
+#define		SPFS2		0x1C5470
+#define		SPFS3		0x1C5474
+#define		SPFS4		0x1C5478
+#define		SPFS5		0x1C547C
+
+#define		SPOCTL		0x1C5480
+#define		SPICTL		0x1C5484
+#define		SPISTS		0x1C5488
+#define		SPINTP		0x1C548C
+#define		SPINTE		0x1C5490
+#define		SPUTCTLAB	0x1C5494
+#define		SPUTCTLCD	0x1C5498
+
+#define		SRTSPA		0x1C54C0
+#define		SRTSPB		0x1C54C4
+#define		SRTSPC		0x1C54C8
+#define		SRTSPD		0x1C54CC
+
+#define		SRTSCTL		0x1C54D0
+#define		SRTSCTLA	0x1C54D0
+#define		SRTSCTLB	0x1C54D4
+#define		SRTSCTLC	0x1C54D8
+#define		SRTSCTLD	0x1C54DC
+
+#define		SRTI2S		0x1C54E0
+#define		SRTICTL		0x1C54F0
+
+#define		WC		0x1C6000
+#define		TIMR		0x1C6004
+# define	TIMR_IE		(1<<15)
+# define	TIMR_IP		(1<<14)
+
+#define		GIP		0x1C6010
+#define		GIE		0x1C6014
+#define		DIE		0x1C6018
+#define		DIC		0x1C601C
+#define		GPIO		0x1C6020
+#define		GPIOCTL		0x1C6024
+#define		GPIP		0x1C6028
+#define		GPIE		0x1C602C
+#define		DSPINT0		0x1C6030
+#define		DSPEIOC		0x1C6034
+#define		MUADAT		0x1C6040
+#define		MUACMD		0x1C6044
+#define 	MUASTAT		0x1C6044
+#define		MUBDAT		0x1C6048
+#define		MUBCMD		0x1C604C
+#define		MUBSTAT		0x1C604C
+#define		UARTCMA		0x1C6050
+#define		UARTCMB		0x1C6054
+#define		UARTIP		0x1C6058
+#define		UARTIE		0x1C605C
+#define		PLLCTL		0x1C6060
+#define		PLLDCD		0x1C6064
+#define		GCTL		0x1C6070
+#define		ID0		0x1C6080
+#define		ID1		0x1C6084
+#define		ID2		0x1C6088
+#define		ID3		0x1C608C
+#define		SDRCTL		0x1C7000
+
+
+#define I2SA_L    0x0L
+#define I2SA_R    0x1L
+#define I2SB_L    0x8L
+#define I2SB_R    0x9L
+#define I2SC_L    0x10L
+#define I2SC_R    0x11L
+#define I2SD_L    0x18L
+#define I2SD_R    0x19L
+
+#endif /* CT20K1REG_H */
+
+
diff --git a/sound/pci/ctxfi/ct20k2reg.h b/sound/pci/ctxfi/ct20k2reg.h
new file mode 100644
index 000000000000..2d07986f57cc
--- /dev/null
+++ b/sound/pci/ctxfi/ct20k2reg.h
@@ -0,0 +1,85 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ */
+
+#ifndef _20K2REGISTERS_H_
+#define _20K2REGISTERS_H_
+
+
+/* Timer Registers */
+#define TIMER_TIMR          0x1B7004
+#define INTERRUPT_GIP       0x1B7010
+#define INTERRUPT_GIE       0x1B7014
+
+/* I2C Registers */
+#define I2C_IF_ADDRESS   0x1B9000
+#define I2C_IF_WDATA     0x1B9004
+#define I2C_IF_RDATA     0x1B9008
+#define I2C_IF_STATUS    0x1B900C
+#define I2C_IF_WLOCK     0x1B9010
+
+/* Global Control Registers */
+#define GLOBAL_CNTL_GCTL    0x1B7090
+
+/* PLL Registers */
+#define PLL_CTL 		0x1B7080
+#define PLL_STAT		0x1B7084
+#define PLL_ENB			0x1B7088
+
+/* SRC Registers */
+#define SRC_CTL             0x1A0000 /* 0x1A0000 + (256 * Chn) */
+#define SRC_CCR             0x1A0004 /* 0x1A0004 + (256 * Chn) */
+#define SRC_IMAP            0x1A0008 /* 0x1A0008 + (256 * Chn) */
+#define SRC_CA              0x1A0010 /* 0x1A0010 + (256 * Chn) */
+#define SRC_CF              0x1A0014 /* 0x1A0014 + (256 * Chn) */
+#define SRC_SA              0x1A0018 /* 0x1A0018 + (256 * Chn) */
+#define SRC_LA              0x1A001C /* 0x1A001C + (256 * Chn) */
+#define SRC_CTLSWR	    0x1A0020 /* 0x1A0020 + (256 * Chn) */
+#define SRC_CD		    0x1A0080 /* 0x1A0080 + (256 * Chn) + (4 * Regn) */
+#define SRC_MCTL		0x1A012C
+#define SRC_IP			0x1A102C /* 0x1A102C + (256 * Regn) */
+#define SRC_ENB			0x1A282C /* 0x1A282C + (256 * Regn) */
+#define SRC_ENBSTAT		0x1A202C
+#define SRC_ENBSA		0x1A232C
+#define SRC_DN0Z		0x1A0030
+#define SRC_DN1Z		0x1A0040
+#define SRC_UPZ			0x1A0060
+
+/* GPIO Registers */
+#define GPIO_DATA           0x1B7020
+#define GPIO_CTRL           0x1B7024
+
+/* Virtual memory registers */
+#define VMEM_PTPAL          0x1C6300 /* 0x1C6300 + (16 * Chn) */
+#define VMEM_PTPAH          0x1C6304 /* 0x1C6304 + (16 * Chn) */
+#define VMEM_CTL            0x1C7000
+
+/* Transport Registers */
+#define TRANSPORT_ENB       0x1B6000
+#define TRANSPORT_CTL       0x1B6004
+#define TRANSPORT_INT       0x1B6008
+
+/* Audio IO */
+#define AUDIO_IO_AIM        0x1B5000 /* 0x1B5000 + (0x04 * Chn) */
+#define AUDIO_IO_TX_CTL     0x1B5400 /* 0x1B5400 + (0x40 * Chn) */
+#define AUDIO_IO_TX_CSTAT_L 0x1B5408 /* 0x1B5408 + (0x40 * Chn) */
+#define AUDIO_IO_TX_CSTAT_H 0x1B540C /* 0x1B540C + (0x40 * Chn) */
+#define AUDIO_IO_RX_CTL     0x1B5410 /* 0x1B5410 + (0x40 * Chn) */
+#define AUDIO_IO_RX_SRT_CTL 0x1B5420 /* 0x1B5420 + (0x40 * Chn) */
+#define AUDIO_IO_MCLK       0x1B5600
+#define AUDIO_IO_TX_BLRCLK  0x1B5604
+#define AUDIO_IO_RX_BLRCLK  0x1B5608
+
+/* Mixer */
+#define MIXER_AMOPLO		0x130000 /* 0x130000 + (8 * Chn) [4095 : 0] */
+#define MIXER_AMOPHI		0x130004 /* 0x130004 + (8 * Chn) [4095 : 0] */
+#define MIXER_PRING_LO_HI	0x188000 /* 0x188000 + (4 * Chn) [4095 : 0] */
+#define MIXER_PMOPLO		0x138000 /* 0x138000 + (8 * Chn) [4095 : 0] */
+#define MIXER_PMOPHI		0x138004 /* 0x138004 + (8 * Chn) [4095 : 0] */
+#define MIXER_AR_ENABLE		0x19000C
+
+#endif
diff --git a/sound/pci/ctxfi/ctamixer.c b/sound/pci/ctxfi/ctamixer.c
new file mode 100644
index 000000000000..a1db51b3ead8
--- /dev/null
+++ b/sound/pci/ctxfi/ctamixer.c
@@ -0,0 +1,488 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	ctamixer.c
+ *
+ * @Brief
+ * This file contains the implementation of the Audio Mixer
+ * resource management object.
+ *
+ * @Author	Liu Chun
+ * @Date 	May 21 2008
+ *
+ */
+
+#include "ctamixer.h"
+#include "cthardware.h"
+#include <linux/slab.h>
+
+#define AMIXER_RESOURCE_NUM	256
+#define SUM_RESOURCE_NUM	256
+
+#define AMIXER_Y_IMMEDIATE	1
+
+#define BLANK_SLOT		4094
+
+static int amixer_master(struct rsc *rsc)
+{
+	rsc->conj = 0;
+	return rsc->idx = container_of(rsc, struct amixer, rsc)->idx[0];
+}
+
+static int amixer_next_conj(struct rsc *rsc)
+{
+	rsc->conj++;
+	return container_of(rsc, struct amixer, rsc)->idx[rsc->conj];
+}
+
+static int amixer_index(const struct rsc *rsc)
+{
+	return container_of(rsc, struct amixer, rsc)->idx[rsc->conj];
+}
+
+static int amixer_output_slot(const struct rsc *rsc)
+{
+	return (amixer_index(rsc) << 4) + 0x4;
+}
+
+static struct rsc_ops amixer_basic_rsc_ops = {
+	.master		= amixer_master,
+	.next_conj	= amixer_next_conj,
+	.index		= amixer_index,
+	.output_slot	= amixer_output_slot,
+};
+
+static int amixer_set_input(struct amixer *amixer, struct rsc *rsc)
+{
+	struct hw *hw;
+
+	hw = amixer->rsc.hw;
+	hw->amixer_set_mode(amixer->rsc.ctrl_blk, AMIXER_Y_IMMEDIATE);
+	amixer->input = rsc;
+	if (NULL == rsc)
+		hw->amixer_set_x(amixer->rsc.ctrl_blk, BLANK_SLOT);
+	else
+		hw->amixer_set_x(amixer->rsc.ctrl_blk,
+					rsc->ops->output_slot(rsc));
+
+	return 0;
+}
+
+/* y is a 14-bit immediate constant */
+static int amixer_set_y(struct amixer *amixer, unsigned int y)
+{
+	struct hw *hw;
+
+	hw = amixer->rsc.hw;
+	hw->amixer_set_y(amixer->rsc.ctrl_blk, y);
+
+	return 0;
+}
+
+static int amixer_set_invalid_squash(struct amixer *amixer, unsigned int iv)
+{
+	struct hw *hw;
+
+	hw = amixer->rsc.hw;
+	hw->amixer_set_iv(amixer->rsc.ctrl_blk, iv);
+
+	return 0;
+}
+
+static int amixer_set_sum(struct amixer *amixer, struct sum *sum)
+{
+	struct hw *hw;
+
+	hw = amixer->rsc.hw;
+	amixer->sum = sum;
+	if (NULL == sum) {
+		hw->amixer_set_se(amixer->rsc.ctrl_blk, 0);
+	} else {
+		hw->amixer_set_se(amixer->rsc.ctrl_blk, 1);
+		hw->amixer_set_sadr(amixer->rsc.ctrl_blk,
+					sum->rsc.ops->index(&sum->rsc));
+	}
+
+	return 0;
+}
+
+static int amixer_commit_write(struct amixer *amixer)
+{
+	struct hw *hw;
+	unsigned int index;
+	int i;
+	struct rsc *input;
+	struct sum *sum;
+
+	hw = amixer->rsc.hw;
+	input = amixer->input;
+	sum = amixer->sum;
+
+	/* Program master and conjugate resources */
+	amixer->rsc.ops->master(&amixer->rsc);
+	if (NULL != input)
+		input->ops->master(input);
+
+	if (NULL != sum)
+		sum->rsc.ops->master(&sum->rsc);
+
+	for (i = 0; i < amixer->rsc.msr; i++) {
+		hw->amixer_set_dirty_all(amixer->rsc.ctrl_blk);
+		if (NULL != input) {
+			hw->amixer_set_x(amixer->rsc.ctrl_blk,
+						input->ops->output_slot(input));
+			input->ops->next_conj(input);
+		}
+		if (NULL != sum) {
+			hw->amixer_set_sadr(amixer->rsc.ctrl_blk,
+						sum->rsc.ops->index(&sum->rsc));
+			sum->rsc.ops->next_conj(&sum->rsc);
+		}
+		index = amixer->rsc.ops->output_slot(&amixer->rsc);
+		hw->amixer_commit_write(hw, index, amixer->rsc.ctrl_blk);
+		amixer->rsc.ops->next_conj(&amixer->rsc);
+	}
+	amixer->rsc.ops->master(&amixer->rsc);
+	if (NULL != input)
+		input->ops->master(input);
+
+	if (NULL != sum)
+		sum->rsc.ops->master(&sum->rsc);
+
+	return 0;
+}
+
+static int amixer_commit_raw_write(struct amixer *amixer)
+{
+	struct hw *hw;
+	unsigned int index;
+
+	hw = amixer->rsc.hw;
+	index = amixer->rsc.ops->output_slot(&amixer->rsc);
+	hw->amixer_commit_write(hw, index, amixer->rsc.ctrl_blk);
+
+	return 0;
+}
+
+static int amixer_get_y(struct amixer *amixer)
+{
+	struct hw *hw;
+
+	hw = amixer->rsc.hw;
+	return hw->amixer_get_y(amixer->rsc.ctrl_blk);
+}
+
+static int amixer_setup(struct amixer *amixer, struct rsc *input,
+			unsigned int scale, struct sum *sum)
+{
+	amixer_set_input(amixer, input);
+	amixer_set_y(amixer, scale);
+	amixer_set_sum(amixer, sum);
+	amixer_commit_write(amixer);
+	return 0;
+}
+
+static struct amixer_rsc_ops amixer_ops = {
+	.set_input		= amixer_set_input,
+	.set_invalid_squash	= amixer_set_invalid_squash,
+	.set_scale		= amixer_set_y,
+	.set_sum		= amixer_set_sum,
+	.commit_write		= amixer_commit_write,
+	.commit_raw_write	= amixer_commit_raw_write,
+	.setup			= amixer_setup,
+	.get_scale		= amixer_get_y,
+};
+
+static int amixer_rsc_init(struct amixer *amixer,
+			   const struct amixer_desc *desc,
+			   struct amixer_mgr *mgr)
+{
+	int err;
+
+	err = rsc_init(&amixer->rsc, amixer->idx[0],
+			AMIXER, desc->msr, mgr->mgr.hw);
+	if (err)
+		return err;
+
+	/* Set amixer specific operations */
+	amixer->rsc.ops = &amixer_basic_rsc_ops;
+	amixer->ops = &amixer_ops;
+	amixer->input = NULL;
+	amixer->sum = NULL;
+
+	amixer_setup(amixer, NULL, 0, NULL);
+
+	return 0;
+}
+
+static int amixer_rsc_uninit(struct amixer *amixer)
+{
+	amixer_setup(amixer, NULL, 0, NULL);
+	rsc_uninit(&amixer->rsc);
+	amixer->ops = NULL;
+	amixer->input = NULL;
+	amixer->sum = NULL;
+	return 0;
+}
+
+static int get_amixer_rsc(struct amixer_mgr *mgr,
+			  const struct amixer_desc *desc,
+			  struct amixer **ramixer)
+{
+	int err, i;
+	unsigned int idx;
+	struct amixer *amixer;
+	unsigned long flags;
+
+	*ramixer = NULL;
+
+	/* Allocate mem for amixer resource */
+	amixer = kzalloc(sizeof(*amixer), GFP_KERNEL);
+	if (NULL == amixer) {
+		err = -ENOMEM;
+		return err;
+	}
+
+	/* Check whether there are sufficient
+	 * amixer resources to meet request. */
+	spin_lock_irqsave(&mgr->mgr_lock, flags);
+	for (i = 0; i < desc->msr; i++) {
+		err = mgr_get_resource(&mgr->mgr, 1, &idx);
+		if (err)
+			break;
+
+		amixer->idx[i] = idx;
+	}
+	spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+	if (err) {
+		printk(KERN_ERR "ctxfi: Can't meet AMIXER resource request!\n");
+		goto error;
+	}
+
+	err = amixer_rsc_init(amixer, desc, mgr);
+	if (err)
+		goto error;
+
+	*ramixer = amixer;
+
+	return 0;
+
+error:
+	spin_lock_irqsave(&mgr->mgr_lock, flags);
+	for (i--; i >= 0; i--)
+		mgr_put_resource(&mgr->mgr, 1, amixer->idx[i]);
+
+	spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+	kfree(amixer);
+	return err;
+}
+
+static int put_amixer_rsc(struct amixer_mgr *mgr, struct amixer *amixer)
+{
+	unsigned long flags;
+	int i;
+
+	spin_lock_irqsave(&mgr->mgr_lock, flags);
+	for (i = 0; i < amixer->rsc.msr; i++)
+		mgr_put_resource(&mgr->mgr, 1, amixer->idx[i]);
+
+	spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+	amixer_rsc_uninit(amixer);
+	kfree(amixer);
+
+	return 0;
+}
+
+int amixer_mgr_create(void *hw, struct amixer_mgr **ramixer_mgr)
+{
+	int err;
+	struct amixer_mgr *amixer_mgr;
+
+	*ramixer_mgr = NULL;
+	amixer_mgr = kzalloc(sizeof(*amixer_mgr), GFP_KERNEL);
+	if (NULL == amixer_mgr)
+		return -ENOMEM;
+
+	err = rsc_mgr_init(&amixer_mgr->mgr, AMIXER, AMIXER_RESOURCE_NUM, hw);
+	if (err)
+		goto error;
+
+	spin_lock_init(&amixer_mgr->mgr_lock);
+
+	amixer_mgr->get_amixer = get_amixer_rsc;
+	amixer_mgr->put_amixer = put_amixer_rsc;
+
+	*ramixer_mgr = amixer_mgr;
+
+	return 0;
+
+error:
+	kfree(amixer_mgr);
+	return err;
+}
+
+int amixer_mgr_destroy(struct amixer_mgr *amixer_mgr)
+{
+	rsc_mgr_uninit(&amixer_mgr->mgr);
+	kfree(amixer_mgr);
+	return 0;
+}
+
+/* SUM resource management */
+
+static int sum_master(struct rsc *rsc)
+{
+	rsc->conj = 0;
+	return rsc->idx = container_of(rsc, struct sum, rsc)->idx[0];
+}
+
+static int sum_next_conj(struct rsc *rsc)
+{
+	rsc->conj++;
+	return container_of(rsc, struct sum, rsc)->idx[rsc->conj];
+}
+
+static int sum_index(const struct rsc *rsc)
+{
+	return container_of(rsc, struct sum, rsc)->idx[rsc->conj];
+}
+
+static int sum_output_slot(const struct rsc *rsc)
+{
+	return (sum_index(rsc) << 4) + 0xc;
+}
+
+static struct rsc_ops sum_basic_rsc_ops = {
+	.master		= sum_master,
+	.next_conj	= sum_next_conj,
+	.index		= sum_index,
+	.output_slot	= sum_output_slot,
+};
+
+static int sum_rsc_init(struct sum *sum,
+			const struct sum_desc *desc,
+			struct sum_mgr *mgr)
+{
+	int err;
+
+	err = rsc_init(&sum->rsc, sum->idx[0], SUM, desc->msr, mgr->mgr.hw);
+	if (err)
+		return err;
+
+	sum->rsc.ops = &sum_basic_rsc_ops;
+
+	return 0;
+}
+
+static int sum_rsc_uninit(struct sum *sum)
+{
+	rsc_uninit(&sum->rsc);
+	return 0;
+}
+
+static int get_sum_rsc(struct sum_mgr *mgr,
+		       const struct sum_desc *desc,
+		       struct sum **rsum)
+{
+	int err, i;
+	unsigned int idx;
+	struct sum *sum;
+	unsigned long flags;
+
+	*rsum = NULL;
+
+	/* Allocate mem for sum resource */
+	sum = kzalloc(sizeof(*sum), GFP_KERNEL);
+	if (NULL == sum) {
+		err = -ENOMEM;
+		return err;
+	}
+
+	/* Check whether there are sufficient sum resources to meet request. */
+	spin_lock_irqsave(&mgr->mgr_lock, flags);
+	for (i = 0; i < desc->msr; i++) {
+		err = mgr_get_resource(&mgr->mgr, 1, &idx);
+		if (err)
+			break;
+
+		sum->idx[i] = idx;
+	}
+	spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+	if (err) {
+		printk(KERN_ERR "ctxfi: Can't meet SUM resource request!\n");
+		goto error;
+	}
+
+	err = sum_rsc_init(sum, desc, mgr);
+	if (err)
+		goto error;
+
+	*rsum = sum;
+
+	return 0;
+
+error:
+	spin_lock_irqsave(&mgr->mgr_lock, flags);
+	for (i--; i >= 0; i--)
+		mgr_put_resource(&mgr->mgr, 1, sum->idx[i]);
+
+	spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+	kfree(sum);
+	return err;
+}
+
+static int put_sum_rsc(struct sum_mgr *mgr, struct sum *sum)
+{
+	unsigned long flags;
+	int i;
+
+	spin_lock_irqsave(&mgr->mgr_lock, flags);
+	for (i = 0; i < sum->rsc.msr; i++)
+		mgr_put_resource(&mgr->mgr, 1, sum->idx[i]);
+
+	spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+	sum_rsc_uninit(sum);
+	kfree(sum);
+
+	return 0;
+}
+
+int sum_mgr_create(void *hw, struct sum_mgr **rsum_mgr)
+{
+	int err;
+	struct sum_mgr *sum_mgr;
+
+	*rsum_mgr = NULL;
+	sum_mgr = kzalloc(sizeof(*sum_mgr), GFP_KERNEL);
+	if (NULL == sum_mgr)
+		return -ENOMEM;
+
+	err = rsc_mgr_init(&sum_mgr->mgr, SUM, SUM_RESOURCE_NUM, hw);
+	if (err)
+		goto error;
+
+	spin_lock_init(&sum_mgr->mgr_lock);
+
+	sum_mgr->get_sum = get_sum_rsc;
+	sum_mgr->put_sum = put_sum_rsc;
+
+	*rsum_mgr = sum_mgr;
+
+	return 0;
+
+error:
+	kfree(sum_mgr);
+	return err;
+}
+
+int sum_mgr_destroy(struct sum_mgr *sum_mgr)
+{
+	rsc_mgr_uninit(&sum_mgr->mgr);
+	kfree(sum_mgr);
+	return 0;
+}
+
diff --git a/sound/pci/ctxfi/ctamixer.h b/sound/pci/ctxfi/ctamixer.h
new file mode 100644
index 000000000000..cc49e5ab4750
--- /dev/null
+++ b/sound/pci/ctxfi/ctamixer.h
@@ -0,0 +1,96 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	ctamixer.h
+ *
+ * @Brief
+ * This file contains the definition of the Audio Mixer
+ * resource management object.
+ *
+ * @Author	Liu Chun
+ * @Date 	May 21 2008
+ *
+ */
+
+#ifndef CTAMIXER_H
+#define CTAMIXER_H
+
+#include "ctresource.h"
+#include <linux/spinlock.h>
+
+/* Define the descriptor of a summation node resource */
+struct sum {
+	struct rsc rsc;		/* Basic resource info */
+	unsigned char idx[8];
+};
+
+/* Define sum resource request description info */
+struct sum_desc {
+	unsigned int msr;
+};
+
+struct sum_mgr {
+	struct rsc_mgr mgr;	/* Basic resource manager info */
+	spinlock_t mgr_lock;
+
+	 /* request one sum resource */
+	int (*get_sum)(struct sum_mgr *mgr,
+			const struct sum_desc *desc, struct sum **rsum);
+	/* return one sum resource */
+	int (*put_sum)(struct sum_mgr *mgr, struct sum *sum);
+};
+
+/* Constructor and destructor of daio resource manager */
+int sum_mgr_create(void *hw, struct sum_mgr **rsum_mgr);
+int sum_mgr_destroy(struct sum_mgr *sum_mgr);
+
+/* Define the descriptor of a amixer resource */
+struct amixer_rsc_ops;
+
+struct amixer {
+	struct rsc rsc;		/* Basic resource info */
+	unsigned char idx[8];
+	struct rsc *input;	/* pointer to a resource acting as source */
+	struct sum *sum;	/* Put amixer output to this summation node */
+	struct amixer_rsc_ops *ops;	/* AMixer specific operations */
+};
+
+struct amixer_rsc_ops {
+	int (*set_input)(struct amixer *amixer, struct rsc *rsc);
+	int (*set_scale)(struct amixer *amixer, unsigned int scale);
+	int (*set_invalid_squash)(struct amixer *amixer, unsigned int iv);
+	int (*set_sum)(struct amixer *amixer, struct sum *sum);
+	int (*commit_write)(struct amixer *amixer);
+	/* Only for interleaved recording */
+	int (*commit_raw_write)(struct amixer *amixer);
+	int (*setup)(struct amixer *amixer, struct rsc *input,
+			unsigned int scale, struct sum *sum);
+	int (*get_scale)(struct amixer *amixer);
+};
+
+/* Define amixer resource request description info */
+struct amixer_desc {
+	unsigned int msr;
+};
+
+struct amixer_mgr {
+	struct rsc_mgr mgr;	/* Basic resource manager info */
+	spinlock_t mgr_lock;
+
+	 /* request one amixer resource */
+	int (*get_amixer)(struct amixer_mgr *mgr,
+			  const struct amixer_desc *desc,
+			  struct amixer **ramixer);
+	/* return one amixer resource */
+	int (*put_amixer)(struct amixer_mgr *mgr, struct amixer *amixer);
+};
+
+/* Constructor and destructor of amixer resource manager */
+int amixer_mgr_create(void *hw, struct amixer_mgr **ramixer_mgr);
+int amixer_mgr_destroy(struct amixer_mgr *amixer_mgr);
+
+#endif /* CTAMIXER_H */
diff --git a/sound/pci/ctxfi/ctatc.c b/sound/pci/ctxfi/ctatc.c
new file mode 100644
index 000000000000..80fb2baed7a7
--- /dev/null
+++ b/sound/pci/ctxfi/ctatc.c
@@ -0,0 +1,1619 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File    ctatc.c
+ *
+ * @Brief
+ * This file contains the implementation of the device resource management
+ * object.
+ *
+ * @Author Liu Chun
+ * @Date Mar 28 2008
+ */
+
+#include "ctatc.h"
+#include "ctpcm.h"
+#include "ctmixer.h"
+#include "cthardware.h"
+#include "ctsrc.h"
+#include "ctamixer.h"
+#include "ctdaio.h"
+#include "cttimer.h"
+#include <linux/delay.h>
+#include <sound/pcm.h>
+#include <sound/control.h>
+#include <sound/asoundef.h>
+
+#define MONO_SUM_SCALE	0x19a8	/* 2^(-0.5) in 14-bit floating format */
+#define DAIONUM		7
+#define MAX_MULTI_CHN	8
+
+#define IEC958_DEFAULT_CON ((IEC958_AES0_NONAUDIO \
+			    | IEC958_AES0_CON_NOT_COPYRIGHT) \
+			    | ((IEC958_AES1_CON_MIXER \
+			    | IEC958_AES1_CON_ORIGINAL) << 8) \
+			    | (0x10 << 16) \
+			    | ((IEC958_AES3_CON_FS_48000) << 24))
+
+static struct snd_pci_quirk __devinitdata subsys_20k1_list[] = {
+	SND_PCI_QUIRK(PCI_VENDOR_ID_CREATIVE, 0x0022, "SB055x", CTSB055X),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_CREATIVE, 0x002f, "SB055x", CTSB055X),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_CREATIVE, 0x0029, "SB073x", CTSB073X),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_CREATIVE, 0x0031, "SB073x", CTSB073X),
+	SND_PCI_QUIRK_MASK(PCI_VENDOR_ID_CREATIVE, 0xf000, 0x6000,
+			   "UAA", CTUAA),
+	SND_PCI_QUIRK_VENDOR(PCI_VENDOR_ID_CREATIVE,
+			     "Unknown", CT20K1_UNKNOWN),
+	{ } /* terminator */
+};
+
+static struct snd_pci_quirk __devinitdata subsys_20k2_list[] = {
+	SND_PCI_QUIRK(PCI_VENDOR_ID_CREATIVE, PCI_SUBDEVICE_ID_CREATIVE_SB0760,
+		      "SB0760", CTSB0760),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_CREATIVE, PCI_SUBDEVICE_ID_CREATIVE_SB08801,
+		      "SB0880", CTSB0880),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_CREATIVE, PCI_SUBDEVICE_ID_CREATIVE_SB08802,
+		      "SB0880", CTSB0880),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_CREATIVE, PCI_SUBDEVICE_ID_CREATIVE_SB08803,
+		      "SB0880", CTSB0880),
+	SND_PCI_QUIRK_MASK(PCI_VENDOR_ID_CREATIVE, 0xf000,
+			   PCI_SUBDEVICE_ID_CREATIVE_HENDRIX, "HENDRIX",
+			   CTHENDRIX),
+	{ } /* terminator */
+};
+
+static const char *ct_subsys_name[NUM_CTCARDS] = {
+	[CTSB055X]	= "SB055x",
+	[CTSB073X]	= "SB073x",
+	[CTSB0760]	= "SB076x",
+	[CTUAA]		= "UAA",
+	[CT20K1_UNKNOWN] = "Unknown",
+	[CTHENDRIX]	= "Hendrix",
+	[CTSB0880]	= "SB0880",
+};
+
+static struct {
+	int (*create)(struct ct_atc *atc,
+			enum CTALSADEVS device, const char *device_name);
+	int (*destroy)(void *alsa_dev);
+	const char *public_name;
+} alsa_dev_funcs[NUM_CTALSADEVS] = {
+	[FRONT]		= { .create = ct_alsa_pcm_create,
+			    .destroy = NULL,
+			    .public_name = "Front/WaveIn"},
+	[SURROUND]	= { .create = ct_alsa_pcm_create,
+			    .destroy = NULL,
+			    .public_name = "Surround"},
+	[CLFE]		= { .create = ct_alsa_pcm_create,
+			    .destroy = NULL,
+			    .public_name = "Center/LFE"},
+	[SIDE]		= { .create = ct_alsa_pcm_create,
+			    .destroy = NULL,
+			    .public_name = "Side"},
+	[IEC958]	= { .create = ct_alsa_pcm_create,
+			    .destroy = NULL,
+			    .public_name = "IEC958 Non-audio"},
+
+	[MIXER]		= { .create = ct_alsa_mix_create,
+			    .destroy = NULL,
+			    .public_name = "Mixer"}
+};
+
+typedef int (*create_t)(void *, void **);
+typedef int (*destroy_t)(void *);
+
+static struct {
+	int (*create)(void *hw, void **rmgr);
+	int (*destroy)(void *mgr);
+} rsc_mgr_funcs[NUM_RSCTYP] = {
+	[SRC] 		= { .create 	= (create_t)src_mgr_create,
+			    .destroy 	= (destroy_t)src_mgr_destroy	},
+	[SRCIMP] 	= { .create 	= (create_t)srcimp_mgr_create,
+			    .destroy 	= (destroy_t)srcimp_mgr_destroy	},
+	[AMIXER]	= { .create	= (create_t)amixer_mgr_create,
+			    .destroy	= (destroy_t)amixer_mgr_destroy	},
+	[SUM]		= { .create	= (create_t)sum_mgr_create,
+			    .destroy	= (destroy_t)sum_mgr_destroy	},
+	[DAIO]		= { .create	= (create_t)daio_mgr_create,
+			    .destroy	= (destroy_t)daio_mgr_destroy	}
+};
+
+static int
+atc_pcm_release_resources(struct ct_atc *atc, struct ct_atc_pcm *apcm);
+
+/* *
+ * Only mono and interleaved modes are supported now.
+ * Always allocates a contiguous channel block.
+ * */
+
+static int ct_map_audio_buffer(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+	struct snd_pcm_runtime *runtime;
+	struct ct_vm *vm;
+
+	if (NULL == apcm->substream)
+		return 0;
+
+	runtime = apcm->substream->runtime;
+	vm = atc->vm;
+
+	apcm->vm_block = vm->map(vm, apcm->substream, runtime->dma_bytes);
+
+	if (NULL == apcm->vm_block)
+		return -ENOENT;
+
+	return 0;
+}
+
+static void ct_unmap_audio_buffer(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+	struct ct_vm *vm;
+
+	if (NULL == apcm->vm_block)
+		return;
+
+	vm = atc->vm;
+
+	vm->unmap(vm, apcm->vm_block);
+
+	apcm->vm_block = NULL;
+}
+
+static unsigned long atc_get_ptp_phys(struct ct_atc *atc, int index)
+{
+	struct ct_vm *vm;
+	void *kvirt_addr;
+	unsigned long phys_addr;
+
+	vm = atc->vm;
+	kvirt_addr = vm->get_ptp_virt(vm, index);
+	if (kvirt_addr == NULL)
+		phys_addr = (~0UL);
+	else
+		phys_addr = virt_to_phys(kvirt_addr);
+
+	return phys_addr;
+}
+
+static unsigned int convert_format(snd_pcm_format_t snd_format)
+{
+	switch (snd_format) {
+	case SNDRV_PCM_FORMAT_U8:
+		return SRC_SF_U8;
+	case SNDRV_PCM_FORMAT_S16_LE:
+		return SRC_SF_S16;
+	case SNDRV_PCM_FORMAT_S24_3LE:
+		return SRC_SF_S24;
+	case SNDRV_PCM_FORMAT_S32_LE:
+		return SRC_SF_S32;
+	case SNDRV_PCM_FORMAT_FLOAT_LE:
+		return SRC_SF_F32;
+	default:
+		printk(KERN_ERR "ctxfi: not recognized snd format is %d \n",
+			snd_format);
+		return SRC_SF_S16;
+	}
+}
+
+static unsigned int
+atc_get_pitch(unsigned int input_rate, unsigned int output_rate)
+{
+	unsigned int pitch;
+	int b;
+
+	/* get pitch and convert to fixed-point 8.24 format. */
+	pitch = (input_rate / output_rate) << 24;
+	input_rate %= output_rate;
+	input_rate /= 100;
+	output_rate /= 100;
+	for (b = 31; ((b >= 0) && !(input_rate >> b)); )
+		b--;
+
+	if (b >= 0) {
+		input_rate <<= (31 - b);
+		input_rate /= output_rate;
+		b = 24 - (31 - b);
+		if (b >= 0)
+			input_rate <<= b;
+		else
+			input_rate >>= -b;
+
+		pitch |= input_rate;
+	}
+
+	return pitch;
+}
+
+static int select_rom(unsigned int pitch)
+{
+	if ((pitch > 0x00428f5c) && (pitch < 0x01b851ec)) {
+		/* 0.26 <= pitch <= 1.72 */
+		return 1;
+	} else if ((0x01d66666 == pitch) || (0x01d66667 == pitch)) {
+		/* pitch == 1.8375 */
+		return 2;
+	} else if (0x02000000 == pitch) {
+		/* pitch == 2 */
+		return 3;
+	} else if ((pitch >= 0x0) && (pitch <= 0x08000000)) {
+		/* 0 <= pitch <= 8 */
+		return 0;
+	} else {
+		return -ENOENT;
+	}
+}
+
+static int atc_pcm_playback_prepare(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+	struct src_mgr *src_mgr = atc->rsc_mgrs[SRC];
+	struct amixer_mgr *amixer_mgr = atc->rsc_mgrs[AMIXER];
+	struct src_desc desc = {0};
+	struct amixer_desc mix_dsc = {0};
+	struct src *src;
+	struct amixer *amixer;
+	int err;
+	int n_amixer = apcm->substream->runtime->channels, i = 0;
+	int device = apcm->substream->pcm->device;
+	unsigned int pitch;
+	unsigned long flags;
+
+	if (NULL != apcm->src) {
+		/* Prepared pcm playback */
+		return 0;
+	}
+
+	/* first release old resources */
+	atc->pcm_release_resources(atc, apcm);
+
+	/* Get SRC resource */
+	desc.multi = apcm->substream->runtime->channels;
+	desc.msr = atc->msr;
+	desc.mode = MEMRD;
+	err = src_mgr->get_src(src_mgr, &desc, (struct src **)&apcm->src);
+	if (err)
+		goto error1;
+
+	pitch = atc_get_pitch(apcm->substream->runtime->rate,
+						(atc->rsr * atc->msr));
+	src = apcm->src;
+	src->ops->set_pitch(src, pitch);
+	src->ops->set_rom(src, select_rom(pitch));
+	src->ops->set_sf(src, convert_format(apcm->substream->runtime->format));
+	src->ops->set_pm(src, (src->ops->next_interleave(src) != NULL));
+
+	/* Get AMIXER resource */
+	n_amixer = (n_amixer < 2) ? 2 : n_amixer;
+	apcm->amixers = kzalloc(sizeof(void *)*n_amixer, GFP_KERNEL);
+	if (NULL == apcm->amixers) {
+		err = -ENOMEM;
+		goto error1;
+	}
+	mix_dsc.msr = atc->msr;
+	for (i = 0, apcm->n_amixer = 0; i < n_amixer; i++) {
+		err = amixer_mgr->get_amixer(amixer_mgr, &mix_dsc,
+					(struct amixer **)&apcm->amixers[i]);
+		if (err)
+			goto error1;
+
+		apcm->n_amixer++;
+	}
+
+	/* Set up device virtual mem map */
+	err = ct_map_audio_buffer(atc, apcm);
+	if (err < 0)
+		goto error1;
+
+	/* Connect resources */
+	src = apcm->src;
+	for (i = 0; i < n_amixer; i++) {
+		amixer = apcm->amixers[i];
+		spin_lock_irqsave(&atc->atc_lock, flags);
+		amixer->ops->setup(amixer, &src->rsc,
+					INIT_VOL, atc->pcm[i+device*2]);
+		spin_unlock_irqrestore(&atc->atc_lock, flags);
+		src = src->ops->next_interleave(src);
+		if (NULL == src)
+			src = apcm->src;
+	}
+
+	ct_timer_prepare(apcm->timer);
+
+	return 0;
+
+error1:
+	atc_pcm_release_resources(atc, apcm);
+	return err;
+}
+
+static int
+atc_pcm_release_resources(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+	struct src_mgr *src_mgr = atc->rsc_mgrs[SRC];
+	struct srcimp_mgr *srcimp_mgr = atc->rsc_mgrs[SRCIMP];
+	struct amixer_mgr *amixer_mgr = atc->rsc_mgrs[AMIXER];
+	struct sum_mgr *sum_mgr = atc->rsc_mgrs[SUM];
+	struct srcimp *srcimp;
+	int i;
+
+	if (NULL != apcm->srcimps) {
+		for (i = 0; i < apcm->n_srcimp; i++) {
+			srcimp = apcm->srcimps[i];
+			srcimp->ops->unmap(srcimp);
+			srcimp_mgr->put_srcimp(srcimp_mgr, srcimp);
+			apcm->srcimps[i] = NULL;
+		}
+		kfree(apcm->srcimps);
+		apcm->srcimps = NULL;
+	}
+
+	if (NULL != apcm->srccs) {
+		for (i = 0; i < apcm->n_srcc; i++) {
+			src_mgr->put_src(src_mgr, apcm->srccs[i]);
+			apcm->srccs[i] = NULL;
+		}
+		kfree(apcm->srccs);
+		apcm->srccs = NULL;
+	}
+
+	if (NULL != apcm->amixers) {
+		for (i = 0; i < apcm->n_amixer; i++) {
+			amixer_mgr->put_amixer(amixer_mgr, apcm->amixers[i]);
+			apcm->amixers[i] = NULL;
+		}
+		kfree(apcm->amixers);
+		apcm->amixers = NULL;
+	}
+
+	if (NULL != apcm->mono) {
+		sum_mgr->put_sum(sum_mgr, apcm->mono);
+		apcm->mono = NULL;
+	}
+
+	if (NULL != apcm->src) {
+		src_mgr->put_src(src_mgr, apcm->src);
+		apcm->src = NULL;
+	}
+
+	if (NULL != apcm->vm_block) {
+		/* Undo device virtual mem map */
+		ct_unmap_audio_buffer(atc, apcm);
+		apcm->vm_block = NULL;
+	}
+
+	return 0;
+}
+
+static int atc_pcm_playback_start(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+	unsigned int max_cisz;
+	struct src *src = apcm->src;
+
+	if (apcm->started)
+		return 0;
+	apcm->started = 1;
+
+	max_cisz = src->multi * src->rsc.msr;
+	max_cisz = 0x80 * (max_cisz < 8 ? max_cisz : 8);
+
+	src->ops->set_sa(src, apcm->vm_block->addr);
+	src->ops->set_la(src, apcm->vm_block->addr + apcm->vm_block->size);
+	src->ops->set_ca(src, apcm->vm_block->addr + max_cisz);
+	src->ops->set_cisz(src, max_cisz);
+
+	src->ops->set_bm(src, 1);
+	src->ops->set_state(src, SRC_STATE_INIT);
+	src->ops->commit_write(src);
+
+	ct_timer_start(apcm->timer);
+	return 0;
+}
+
+static int atc_pcm_stop(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+	struct src *src;
+	int i;
+
+	ct_timer_stop(apcm->timer);
+
+	src = apcm->src;
+	src->ops->set_bm(src, 0);
+	src->ops->set_state(src, SRC_STATE_OFF);
+	src->ops->commit_write(src);
+
+	if (NULL != apcm->srccs) {
+		for (i = 0; i < apcm->n_srcc; i++) {
+			src = apcm->srccs[i];
+			src->ops->set_bm(src, 0);
+			src->ops->set_state(src, SRC_STATE_OFF);
+			src->ops->commit_write(src);
+		}
+	}
+
+	apcm->started = 0;
+
+	return 0;
+}
+
+static int
+atc_pcm_playback_position(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+	struct src *src = apcm->src;
+	u32 size, max_cisz;
+	int position;
+
+	if (!src)
+		return 0;
+	position = src->ops->get_ca(src);
+
+	size = apcm->vm_block->size;
+	max_cisz = src->multi * src->rsc.msr;
+	max_cisz = 128 * (max_cisz < 8 ? max_cisz : 8);
+
+	return (position + size - max_cisz - apcm->vm_block->addr) % size;
+}
+
+struct src_node_conf_t {
+	unsigned int pitch;
+	unsigned int msr:8;
+	unsigned int mix_msr:8;
+	unsigned int imp_msr:8;
+	unsigned int vo:1;
+};
+
+static void setup_src_node_conf(struct ct_atc *atc, struct ct_atc_pcm *apcm,
+				struct src_node_conf_t *conf, int *n_srcc)
+{
+	unsigned int pitch;
+
+	/* get pitch and convert to fixed-point 8.24 format. */
+	pitch = atc_get_pitch((atc->rsr * atc->msr),
+				apcm->substream->runtime->rate);
+	*n_srcc = 0;
+
+	if (1 == atc->msr) {
+		*n_srcc = apcm->substream->runtime->channels;
+		conf[0].pitch = pitch;
+		conf[0].mix_msr = conf[0].imp_msr = conf[0].msr = 1;
+		conf[0].vo = 1;
+	} else if (2 == atc->msr) {
+		if (0x8000000 < pitch) {
+			/* Need two-stage SRCs, SRCIMPs and
+			 * AMIXERs for converting format */
+			conf[0].pitch = (atc->msr << 24);
+			conf[0].msr = conf[0].mix_msr = 1;
+			conf[0].imp_msr = atc->msr;
+			conf[0].vo = 0;
+			conf[1].pitch = atc_get_pitch(atc->rsr,
+					apcm->substream->runtime->rate);
+			conf[1].msr = conf[1].mix_msr = conf[1].imp_msr = 1;
+			conf[1].vo = 1;
+			*n_srcc = apcm->substream->runtime->channels * 2;
+		} else if (0x1000000 < pitch) {
+			/* Need one-stage SRCs, SRCIMPs and
+			 * AMIXERs for converting format */
+			conf[0].pitch = pitch;
+			conf[0].msr = conf[0].mix_msr
+				    = conf[0].imp_msr = atc->msr;
+			conf[0].vo = 1;
+			*n_srcc = apcm->substream->runtime->channels;
+		}
+	}
+}
+
+static int
+atc_pcm_capture_get_resources(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+	struct src_mgr *src_mgr = atc->rsc_mgrs[SRC];
+	struct srcimp_mgr *srcimp_mgr = atc->rsc_mgrs[SRCIMP];
+	struct amixer_mgr *amixer_mgr = atc->rsc_mgrs[AMIXER];
+	struct sum_mgr *sum_mgr = atc->rsc_mgrs[SUM];
+	struct src_desc src_dsc = {0};
+	struct src *src;
+	struct srcimp_desc srcimp_dsc = {0};
+	struct srcimp *srcimp;
+	struct amixer_desc mix_dsc = {0};
+	struct sum_desc sum_dsc = {0};
+	unsigned int pitch;
+	int multi, err, i;
+	int n_srcimp, n_amixer, n_srcc, n_sum;
+	struct src_node_conf_t src_node_conf[2] = {{0} };
+
+	/* first release old resources */
+	atc_pcm_release_resources(atc, apcm);
+
+	/* The numbers of converting SRCs and SRCIMPs should be determined
+	 * by pitch value. */
+
+	multi = apcm->substream->runtime->channels;
+
+	/* get pitch and convert to fixed-point 8.24 format. */
+	pitch = atc_get_pitch((atc->rsr * atc->msr),
+				apcm->substream->runtime->rate);
+
+	setup_src_node_conf(atc, apcm, src_node_conf, &n_srcc);
+	n_sum = (1 == multi) ? 1 : 0;
+	n_amixer = n_sum * 2 + n_srcc;
+	n_srcimp = n_srcc;
+	if ((multi > 1) && (0x8000000 >= pitch)) {
+		/* Need extra AMIXERs and SRCIMPs for special treatment
+		 * of interleaved recording of conjugate channels */
+		n_amixer += multi * atc->msr;
+		n_srcimp += multi * atc->msr;
+	} else {
+		n_srcimp += multi;
+	}
+
+	if (n_srcc) {
+		apcm->srccs = kzalloc(sizeof(void *)*n_srcc, GFP_KERNEL);
+		if (NULL == apcm->srccs)
+			return -ENOMEM;
+	}
+	if (n_amixer) {
+		apcm->amixers = kzalloc(sizeof(void *)*n_amixer, GFP_KERNEL);
+		if (NULL == apcm->amixers) {
+			err = -ENOMEM;
+			goto error1;
+		}
+	}
+	apcm->srcimps = kzalloc(sizeof(void *)*n_srcimp, GFP_KERNEL);
+	if (NULL == apcm->srcimps) {
+		err = -ENOMEM;
+		goto error1;
+	}
+
+	/* Allocate SRCs for sample rate conversion if needed */
+	src_dsc.multi = 1;
+	src_dsc.mode = ARCRW;
+	for (i = 0, apcm->n_srcc = 0; i < n_srcc; i++) {
+		src_dsc.msr = src_node_conf[i/multi].msr;
+		err = src_mgr->get_src(src_mgr, &src_dsc,
+					(struct src **)&apcm->srccs[i]);
+		if (err)
+			goto error1;
+
+		src = apcm->srccs[i];
+		pitch = src_node_conf[i/multi].pitch;
+		src->ops->set_pitch(src, pitch);
+		src->ops->set_rom(src, select_rom(pitch));
+		src->ops->set_vo(src, src_node_conf[i/multi].vo);
+
+		apcm->n_srcc++;
+	}
+
+	/* Allocate AMIXERs for routing SRCs of conversion if needed */
+	for (i = 0, apcm->n_amixer = 0; i < n_amixer; i++) {
+		if (i < (n_sum*2))
+			mix_dsc.msr = atc->msr;
+		else if (i < (n_sum*2+n_srcc))
+			mix_dsc.msr = src_node_conf[(i-n_sum*2)/multi].mix_msr;
+		else
+			mix_dsc.msr = 1;
+
+		err = amixer_mgr->get_amixer(amixer_mgr, &mix_dsc,
+					(struct amixer **)&apcm->amixers[i]);
+		if (err)
+			goto error1;
+
+		apcm->n_amixer++;
+	}
+
+	/* Allocate a SUM resource to mix all input channels together */
+	sum_dsc.msr = atc->msr;
+	err = sum_mgr->get_sum(sum_mgr, &sum_dsc, (struct sum **)&apcm->mono);
+	if (err)
+		goto error1;
+
+	pitch = atc_get_pitch((atc->rsr * atc->msr),
+				apcm->substream->runtime->rate);
+	/* Allocate SRCIMP resources */
+	for (i = 0, apcm->n_srcimp = 0; i < n_srcimp; i++) {
+		if (i < (n_srcc))
+			srcimp_dsc.msr = src_node_conf[i/multi].imp_msr;
+		else if (1 == multi)
+			srcimp_dsc.msr = (pitch <= 0x8000000) ? atc->msr : 1;
+		else
+			srcimp_dsc.msr = 1;
+
+		err = srcimp_mgr->get_srcimp(srcimp_mgr, &srcimp_dsc, &srcimp);
+		if (err)
+			goto error1;
+
+		apcm->srcimps[i] = srcimp;
+		apcm->n_srcimp++;
+	}
+
+	/* Allocate a SRC for writing data to host memory */
+	src_dsc.multi = apcm->substream->runtime->channels;
+	src_dsc.msr = 1;
+	src_dsc.mode = MEMWR;
+	err = src_mgr->get_src(src_mgr, &src_dsc, (struct src **)&apcm->src);
+	if (err)
+		goto error1;
+
+	src = apcm->src;
+	src->ops->set_pitch(src, pitch);
+
+	/* Set up device virtual mem map */
+	err = ct_map_audio_buffer(atc, apcm);
+	if (err < 0)
+		goto error1;
+
+	return 0;
+
+error1:
+	atc_pcm_release_resources(atc, apcm);
+	return err;
+}
+
+static int atc_pcm_capture_prepare(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+	struct src *src;
+	struct amixer *amixer;
+	struct srcimp *srcimp;
+	struct ct_mixer *mixer = atc->mixer;
+	struct sum *mono;
+	struct rsc *out_ports[8] = {NULL};
+	int err, i, j, n_sum, multi;
+	unsigned int pitch;
+	int mix_base = 0, imp_base = 0;
+
+	if (NULL != apcm->src) {
+		/* Prepared pcm capture */
+		return 0;
+	}
+
+	/* Get needed resources. */
+	err = atc_pcm_capture_get_resources(atc, apcm);
+	if (err)
+		return err;
+
+	/* Connect resources */
+	mixer->get_output_ports(mixer, MIX_PCMO_FRONT,
+				&out_ports[0], &out_ports[1]);
+
+	multi = apcm->substream->runtime->channels;
+	if (1 == multi) {
+		mono = apcm->mono;
+		for (i = 0; i < 2; i++) {
+			amixer = apcm->amixers[i];
+			amixer->ops->setup(amixer, out_ports[i],
+						MONO_SUM_SCALE, mono);
+		}
+		out_ports[0] = &mono->rsc;
+		n_sum = 1;
+		mix_base = n_sum * 2;
+	}
+
+	for (i = 0; i < apcm->n_srcc; i++) {
+		src = apcm->srccs[i];
+		srcimp = apcm->srcimps[imp_base+i];
+		amixer = apcm->amixers[mix_base+i];
+		srcimp->ops->map(srcimp, src, out_ports[i%multi]);
+		amixer->ops->setup(amixer, &src->rsc, INIT_VOL, NULL);
+		out_ports[i%multi] = &amixer->rsc;
+	}
+
+	pitch = atc_get_pitch((atc->rsr * atc->msr),
+				apcm->substream->runtime->rate);
+
+	if ((multi > 1) && (pitch <= 0x8000000)) {
+		/* Special connection for interleaved
+		 * recording with conjugate channels */
+		for (i = 0; i < multi; i++) {
+			out_ports[i]->ops->master(out_ports[i]);
+			for (j = 0; j < atc->msr; j++) {
+				amixer = apcm->amixers[apcm->n_srcc+j*multi+i];
+				amixer->ops->set_input(amixer, out_ports[i]);
+				amixer->ops->set_scale(amixer, INIT_VOL);
+				amixer->ops->set_sum(amixer, NULL);
+				amixer->ops->commit_raw_write(amixer);
+				out_ports[i]->ops->next_conj(out_ports[i]);
+
+				srcimp = apcm->srcimps[apcm->n_srcc+j*multi+i];
+				srcimp->ops->map(srcimp, apcm->src,
+							&amixer->rsc);
+			}
+		}
+	} else {
+		for (i = 0; i < multi; i++) {
+			srcimp = apcm->srcimps[apcm->n_srcc+i];
+			srcimp->ops->map(srcimp, apcm->src, out_ports[i]);
+		}
+	}
+
+	ct_timer_prepare(apcm->timer);
+
+	return 0;
+}
+
+static int atc_pcm_capture_start(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+	struct src *src;
+	struct src_mgr *src_mgr = atc->rsc_mgrs[SRC];
+	int i, multi;
+
+	if (apcm->started)
+		return 0;
+
+	apcm->started = 1;
+	multi = apcm->substream->runtime->channels;
+	/* Set up converting SRCs */
+	for (i = 0; i < apcm->n_srcc; i++) {
+		src = apcm->srccs[i];
+		src->ops->set_pm(src, ((i%multi) != (multi-1)));
+		src_mgr->src_disable(src_mgr, src);
+	}
+
+	/*  Set up recording SRC */
+	src = apcm->src;
+	src->ops->set_sf(src, convert_format(apcm->substream->runtime->format));
+	src->ops->set_sa(src, apcm->vm_block->addr);
+	src->ops->set_la(src, apcm->vm_block->addr + apcm->vm_block->size);
+	src->ops->set_ca(src, apcm->vm_block->addr);
+	src_mgr->src_disable(src_mgr, src);
+
+	/* Disable relevant SRCs firstly */
+	src_mgr->commit_write(src_mgr);
+
+	/* Enable SRCs respectively */
+	for (i = 0; i < apcm->n_srcc; i++) {
+		src = apcm->srccs[i];
+		src->ops->set_state(src, SRC_STATE_RUN);
+		src->ops->commit_write(src);
+		src_mgr->src_enable_s(src_mgr, src);
+	}
+	src = apcm->src;
+	src->ops->set_bm(src, 1);
+	src->ops->set_state(src, SRC_STATE_RUN);
+	src->ops->commit_write(src);
+	src_mgr->src_enable_s(src_mgr, src);
+
+	/* Enable relevant SRCs synchronously */
+	src_mgr->commit_write(src_mgr);
+
+	ct_timer_start(apcm->timer);
+	return 0;
+}
+
+static int
+atc_pcm_capture_position(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+	struct src *src = apcm->src;
+
+	if (!src)
+		return 0;
+	return src->ops->get_ca(src) - apcm->vm_block->addr;
+}
+
+static int spdif_passthru_playback_get_resources(struct ct_atc *atc,
+						 struct ct_atc_pcm *apcm)
+{
+	struct src_mgr *src_mgr = atc->rsc_mgrs[SRC];
+	struct amixer_mgr *amixer_mgr = atc->rsc_mgrs[AMIXER];
+	struct src_desc desc = {0};
+	struct amixer_desc mix_dsc = {0};
+	struct src *src;
+	int err;
+	int n_amixer = apcm->substream->runtime->channels, i;
+	unsigned int pitch, rsr = atc->pll_rate;
+
+	/* first release old resources */
+	atc_pcm_release_resources(atc, apcm);
+
+	/* Get SRC resource */
+	desc.multi = apcm->substream->runtime->channels;
+	desc.msr = 1;
+	while (apcm->substream->runtime->rate > (rsr * desc.msr))
+		desc.msr <<= 1;
+
+	desc.mode = MEMRD;
+	err = src_mgr->get_src(src_mgr, &desc, (struct src **)&apcm->src);
+	if (err)
+		goto error1;
+
+	pitch = atc_get_pitch(apcm->substream->runtime->rate, (rsr * desc.msr));
+	src = apcm->src;
+	src->ops->set_pitch(src, pitch);
+	src->ops->set_rom(src, select_rom(pitch));
+	src->ops->set_sf(src, convert_format(apcm->substream->runtime->format));
+	src->ops->set_pm(src, (src->ops->next_interleave(src) != NULL));
+	src->ops->set_bp(src, 1);
+
+	/* Get AMIXER resource */
+	n_amixer = (n_amixer < 2) ? 2 : n_amixer;
+	apcm->amixers = kzalloc(sizeof(void *)*n_amixer, GFP_KERNEL);
+	if (NULL == apcm->amixers) {
+		err = -ENOMEM;
+		goto error1;
+	}
+	mix_dsc.msr = desc.msr;
+	for (i = 0, apcm->n_amixer = 0; i < n_amixer; i++) {
+		err = amixer_mgr->get_amixer(amixer_mgr, &mix_dsc,
+					(struct amixer **)&apcm->amixers[i]);
+		if (err)
+			goto error1;
+
+		apcm->n_amixer++;
+	}
+
+	/* Set up device virtual mem map */
+	err = ct_map_audio_buffer(atc, apcm);
+	if (err < 0)
+		goto error1;
+
+	return 0;
+
+error1:
+	atc_pcm_release_resources(atc, apcm);
+	return err;
+}
+
+static int atc_pll_init(struct ct_atc *atc, int rate)
+{
+	struct hw *hw = atc->hw;
+	int err;
+	err = hw->pll_init(hw, rate);
+	atc->pll_rate = err ? 0 : rate;
+	return err;
+}
+
+static int
+spdif_passthru_playback_setup(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+	struct dao *dao = container_of(atc->daios[SPDIFOO], struct dao, daio);
+	unsigned long flags;
+	unsigned int rate = apcm->substream->runtime->rate;
+	unsigned int status;
+	int err;
+	unsigned char iec958_con_fs;
+
+	switch (rate) {
+	case 48000:
+		iec958_con_fs = IEC958_AES3_CON_FS_48000;
+		break;
+	case 44100:
+		iec958_con_fs = IEC958_AES3_CON_FS_44100;
+		break;
+	case 32000:
+		iec958_con_fs = IEC958_AES3_CON_FS_32000;
+		break;
+	default:
+		return -ENOENT;
+	}
+
+	spin_lock_irqsave(&atc->atc_lock, flags);
+	dao->ops->get_spos(dao, &status);
+	if (((status >> 24) & IEC958_AES3_CON_FS) != iec958_con_fs) {
+		status &= ((~IEC958_AES3_CON_FS) << 24);
+		status |= (iec958_con_fs << 24);
+		dao->ops->set_spos(dao, status);
+		dao->ops->commit_write(dao);
+	}
+	if ((rate != atc->pll_rate) && (32000 != rate))
+		err = atc_pll_init(atc, rate);
+	spin_unlock_irqrestore(&atc->atc_lock, flags);
+
+	return err;
+}
+
+static int
+spdif_passthru_playback_prepare(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+	struct src *src;
+	struct amixer *amixer;
+	struct dao *dao;
+	int err;
+	int i;
+	unsigned long flags;
+
+	if (NULL != apcm->src)
+		return 0;
+
+	/* Configure SPDIFOO and PLL to passthrough mode;
+	 * determine pll_rate. */
+	err = spdif_passthru_playback_setup(atc, apcm);
+	if (err)
+		return err;
+
+	/* Get needed resources. */
+	err = spdif_passthru_playback_get_resources(atc, apcm);
+	if (err)
+		return err;
+
+	/* Connect resources */
+	src = apcm->src;
+	for (i = 0; i < apcm->n_amixer; i++) {
+		amixer = apcm->amixers[i];
+		amixer->ops->setup(amixer, &src->rsc, INIT_VOL, NULL);
+		src = src->ops->next_interleave(src);
+		if (NULL == src)
+			src = apcm->src;
+	}
+	/* Connect to SPDIFOO */
+	spin_lock_irqsave(&atc->atc_lock, flags);
+	dao = container_of(atc->daios[SPDIFOO], struct dao, daio);
+	amixer = apcm->amixers[0];
+	dao->ops->set_left_input(dao, &amixer->rsc);
+	amixer = apcm->amixers[1];
+	dao->ops->set_right_input(dao, &amixer->rsc);
+	spin_unlock_irqrestore(&atc->atc_lock, flags);
+
+	ct_timer_prepare(apcm->timer);
+
+	return 0;
+}
+
+static int atc_select_line_in(struct ct_atc *atc)
+{
+	struct hw *hw = atc->hw;
+	struct ct_mixer *mixer = atc->mixer;
+	struct src *src;
+
+	if (hw->is_adc_source_selected(hw, ADC_LINEIN))
+		return 0;
+
+	mixer->set_input_left(mixer, MIX_MIC_IN, NULL);
+	mixer->set_input_right(mixer, MIX_MIC_IN, NULL);
+
+	hw->select_adc_source(hw, ADC_LINEIN);
+
+	src = atc->srcs[2];
+	mixer->set_input_left(mixer, MIX_LINE_IN, &src->rsc);
+	src = atc->srcs[3];
+	mixer->set_input_right(mixer, MIX_LINE_IN, &src->rsc);
+
+	return 0;
+}
+
+static int atc_select_mic_in(struct ct_atc *atc)
+{
+	struct hw *hw = atc->hw;
+	struct ct_mixer *mixer = atc->mixer;
+	struct src *src;
+
+	if (hw->is_adc_source_selected(hw, ADC_MICIN))
+		return 0;
+
+	mixer->set_input_left(mixer, MIX_LINE_IN, NULL);
+	mixer->set_input_right(mixer, MIX_LINE_IN, NULL);
+
+	hw->select_adc_source(hw, ADC_MICIN);
+
+	src = atc->srcs[2];
+	mixer->set_input_left(mixer, MIX_MIC_IN, &src->rsc);
+	src = atc->srcs[3];
+	mixer->set_input_right(mixer, MIX_MIC_IN, &src->rsc);
+
+	return 0;
+}
+
+static int atc_have_digit_io_switch(struct ct_atc *atc)
+{
+	struct hw *hw = atc->hw;
+
+	return hw->have_digit_io_switch(hw);
+}
+
+static int atc_select_digit_io(struct ct_atc *atc)
+{
+	struct hw *hw = atc->hw;
+
+	if (hw->is_adc_source_selected(hw, ADC_NONE))
+		return 0;
+
+	hw->select_adc_source(hw, ADC_NONE);
+
+	return 0;
+}
+
+static int atc_daio_unmute(struct ct_atc *atc, unsigned char state, int type)
+{
+	struct daio_mgr *daio_mgr = atc->rsc_mgrs[DAIO];
+
+	if (state)
+		daio_mgr->daio_enable(daio_mgr, atc->daios[type]);
+	else
+		daio_mgr->daio_disable(daio_mgr, atc->daios[type]);
+
+	daio_mgr->commit_write(daio_mgr);
+
+	return 0;
+}
+
+static int
+atc_dao_get_status(struct ct_atc *atc, unsigned int *status, int type)
+{
+	struct dao *dao = container_of(atc->daios[type], struct dao, daio);
+	return dao->ops->get_spos(dao, status);
+}
+
+static int
+atc_dao_set_status(struct ct_atc *atc, unsigned int status, int type)
+{
+	struct dao *dao = container_of(atc->daios[type], struct dao, daio);
+
+	dao->ops->set_spos(dao, status);
+	dao->ops->commit_write(dao);
+	return 0;
+}
+
+static int atc_line_front_unmute(struct ct_atc *atc, unsigned char state)
+{
+	return atc_daio_unmute(atc, state, LINEO1);
+}
+
+static int atc_line_surround_unmute(struct ct_atc *atc, unsigned char state)
+{
+	return atc_daio_unmute(atc, state, LINEO4);
+}
+
+static int atc_line_clfe_unmute(struct ct_atc *atc, unsigned char state)
+{
+	return atc_daio_unmute(atc, state, LINEO3);
+}
+
+static int atc_line_rear_unmute(struct ct_atc *atc, unsigned char state)
+{
+	return atc_daio_unmute(atc, state, LINEO2);
+}
+
+static int atc_line_in_unmute(struct ct_atc *atc, unsigned char state)
+{
+	return atc_daio_unmute(atc, state, LINEIM);
+}
+
+static int atc_spdif_out_unmute(struct ct_atc *atc, unsigned char state)
+{
+	return atc_daio_unmute(atc, state, SPDIFOO);
+}
+
+static int atc_spdif_in_unmute(struct ct_atc *atc, unsigned char state)
+{
+	return atc_daio_unmute(atc, state, SPDIFIO);
+}
+
+static int atc_spdif_out_get_status(struct ct_atc *atc, unsigned int *status)
+{
+	return atc_dao_get_status(atc, status, SPDIFOO);
+}
+
+static int atc_spdif_out_set_status(struct ct_atc *atc, unsigned int status)
+{
+	return atc_dao_set_status(atc, status, SPDIFOO);
+}
+
+static int atc_spdif_out_passthru(struct ct_atc *atc, unsigned char state)
+{
+	unsigned long flags;
+	struct dao_desc da_dsc = {0};
+	struct dao *dao;
+	int err;
+	struct ct_mixer *mixer = atc->mixer;
+	struct rsc *rscs[2] = {NULL};
+	unsigned int spos = 0;
+
+	spin_lock_irqsave(&atc->atc_lock, flags);
+	dao = container_of(atc->daios[SPDIFOO], struct dao, daio);
+	da_dsc.msr = state ? 1 : atc->msr;
+	da_dsc.passthru = state ? 1 : 0;
+	err = dao->ops->reinit(dao, &da_dsc);
+	if (state) {
+		spos = IEC958_DEFAULT_CON;
+	} else {
+		mixer->get_output_ports(mixer, MIX_SPDIF_OUT,
+					&rscs[0], &rscs[1]);
+		dao->ops->set_left_input(dao, rscs[0]);
+		dao->ops->set_right_input(dao, rscs[1]);
+		/* Restore PLL to atc->rsr if needed. */
+		if (atc->pll_rate != atc->rsr)
+			err = atc_pll_init(atc, atc->rsr);
+	}
+	dao->ops->set_spos(dao, spos);
+	dao->ops->commit_write(dao);
+	spin_unlock_irqrestore(&atc->atc_lock, flags);
+
+	return err;
+}
+
+static int ct_atc_destroy(struct ct_atc *atc)
+{
+	struct daio_mgr *daio_mgr;
+	struct dao *dao;
+	struct dai *dai;
+	struct daio *daio;
+	struct sum_mgr *sum_mgr;
+	struct src_mgr *src_mgr;
+	struct srcimp_mgr *srcimp_mgr;
+	struct srcimp *srcimp;
+	struct ct_mixer *mixer;
+	int i = 0;
+
+	if (NULL == atc)
+		return 0;
+
+	if (atc->timer) {
+		ct_timer_free(atc->timer);
+		atc->timer = NULL;
+	}
+
+	/* Stop hardware and disable all interrupts */
+	if (NULL != atc->hw)
+		((struct hw *)atc->hw)->card_stop(atc->hw);
+
+	/* Destroy internal mixer objects */
+	if (NULL != atc->mixer) {
+		mixer = atc->mixer;
+		mixer->set_input_left(mixer, MIX_LINE_IN, NULL);
+		mixer->set_input_right(mixer, MIX_LINE_IN, NULL);
+		mixer->set_input_left(mixer, MIX_MIC_IN, NULL);
+		mixer->set_input_right(mixer, MIX_MIC_IN, NULL);
+		mixer->set_input_left(mixer, MIX_SPDIF_IN, NULL);
+		mixer->set_input_right(mixer, MIX_SPDIF_IN, NULL);
+		ct_mixer_destroy(atc->mixer);
+	}
+
+	if (NULL != atc->daios) {
+		daio_mgr = (struct daio_mgr *)atc->rsc_mgrs[DAIO];
+		for (i = 0; i < atc->n_daio; i++) {
+			daio = atc->daios[i];
+			if (daio->type < LINEIM) {
+				dao = container_of(daio, struct dao, daio);
+				dao->ops->clear_left_input(dao);
+				dao->ops->clear_right_input(dao);
+			} else {
+				dai = container_of(daio, struct dai, daio);
+				/* some thing to do for dai ... */
+			}
+			daio_mgr->put_daio(daio_mgr, daio);
+		}
+		kfree(atc->daios);
+	}
+
+	if (NULL != atc->pcm) {
+		sum_mgr = atc->rsc_mgrs[SUM];
+		for (i = 0; i < atc->n_pcm; i++)
+			sum_mgr->put_sum(sum_mgr, atc->pcm[i]);
+
+		kfree(atc->pcm);
+	}
+
+	if (NULL != atc->srcs) {
+		src_mgr = atc->rsc_mgrs[SRC];
+		for (i = 0; i < atc->n_src; i++)
+			src_mgr->put_src(src_mgr, atc->srcs[i]);
+
+		kfree(atc->srcs);
+	}
+
+	if (NULL != atc->srcimps) {
+		srcimp_mgr = atc->rsc_mgrs[SRCIMP];
+		for (i = 0; i < atc->n_srcimp; i++) {
+			srcimp = atc->srcimps[i];
+			srcimp->ops->unmap(srcimp);
+			srcimp_mgr->put_srcimp(srcimp_mgr, atc->srcimps[i]);
+		}
+		kfree(atc->srcimps);
+	}
+
+	for (i = 0; i < NUM_RSCTYP; i++) {
+		if ((NULL != rsc_mgr_funcs[i].destroy) &&
+		    (NULL != atc->rsc_mgrs[i]))
+			rsc_mgr_funcs[i].destroy(atc->rsc_mgrs[i]);
+
+	}
+
+	if (NULL != atc->hw)
+		destroy_hw_obj((struct hw *)atc->hw);
+
+	/* Destroy device virtual memory manager object */
+	if (NULL != atc->vm) {
+		ct_vm_destroy(atc->vm);
+		atc->vm = NULL;
+	}
+
+	kfree(atc);
+
+	return 0;
+}
+
+static int atc_dev_free(struct snd_device *dev)
+{
+	struct ct_atc *atc = dev->device_data;
+	return ct_atc_destroy(atc);
+}
+
+static int __devinit atc_identify_card(struct ct_atc *atc)
+{
+	const struct snd_pci_quirk *p;
+	const struct snd_pci_quirk *list;
+
+	switch (atc->chip_type) {
+	case ATC20K1:
+		atc->chip_name = "20K1";
+		list = subsys_20k1_list;
+		break;
+	case ATC20K2:
+		atc->chip_name = "20K2";
+		list = subsys_20k2_list;
+		break;
+	default:
+		return -ENOENT;
+	}
+	p = snd_pci_quirk_lookup(atc->pci, list);
+	if (!p)
+		return -ENOENT;
+	atc->model = p->value;
+	atc->model_name = ct_subsys_name[atc->model];
+	snd_printd("ctxfi: chip %s model %s (%04x:%04x) is found\n",
+		   atc->chip_name, atc->model_name,
+		   atc->pci->subsystem_vendor,
+		   atc->pci->subsystem_device);
+	return 0;
+}
+
+int __devinit ct_atc_create_alsa_devs(struct ct_atc *atc)
+{
+	enum CTALSADEVS i;
+	int err;
+
+	alsa_dev_funcs[MIXER].public_name = atc->chip_name;
+
+	for (i = 0; i < NUM_CTALSADEVS; i++) {
+		if (NULL == alsa_dev_funcs[i].create)
+			continue;
+
+		err = alsa_dev_funcs[i].create(atc, i,
+				alsa_dev_funcs[i].public_name);
+		if (err) {
+			printk(KERN_ERR "ctxfi: "
+			       "Creating alsa device %d failed!\n", i);
+			return err;
+		}
+	}
+
+	return 0;
+}
+
+static int __devinit atc_create_hw_devs(struct ct_atc *atc)
+{
+	struct hw *hw;
+	struct card_conf info = {0};
+	int i, err;
+
+	err = create_hw_obj(atc->pci, atc->chip_type, atc->model, &hw);
+	if (err) {
+		printk(KERN_ERR "Failed to create hw obj!!!\n");
+		return err;
+	}
+	atc->hw = hw;
+
+	/* Initialize card hardware. */
+	info.rsr = atc->rsr;
+	info.msr = atc->msr;
+	info.vm_pgt_phys = atc_get_ptp_phys(atc, 0);
+	err = hw->card_init(hw, &info);
+	if (err < 0)
+		return err;
+
+	for (i = 0; i < NUM_RSCTYP; i++) {
+		if (NULL == rsc_mgr_funcs[i].create)
+			continue;
+
+		err = rsc_mgr_funcs[i].create(atc->hw, &atc->rsc_mgrs[i]);
+		if (err) {
+			printk(KERN_ERR "ctxfi: "
+			       "Failed to create rsc_mgr %d!!!\n", i);
+			return err;
+		}
+	}
+
+	return 0;
+}
+
+static int __devinit atc_get_resources(struct ct_atc *atc)
+{
+	struct daio_desc da_desc = {0};
+	struct daio_mgr *daio_mgr;
+	struct src_desc src_dsc = {0};
+	struct src_mgr *src_mgr;
+	struct srcimp_desc srcimp_dsc = {0};
+	struct srcimp_mgr *srcimp_mgr;
+	struct sum_desc sum_dsc = {0};
+	struct sum_mgr *sum_mgr;
+	int err, i;
+
+	atc->daios = kzalloc(sizeof(void *)*(DAIONUM), GFP_KERNEL);
+	if (NULL == atc->daios)
+		return -ENOMEM;
+
+	atc->srcs = kzalloc(sizeof(void *)*(2*2), GFP_KERNEL);
+	if (NULL == atc->srcs)
+		return -ENOMEM;
+
+	atc->srcimps = kzalloc(sizeof(void *)*(2*2), GFP_KERNEL);
+	if (NULL == atc->srcimps)
+		return -ENOMEM;
+
+	atc->pcm = kzalloc(sizeof(void *)*(2*4), GFP_KERNEL);
+	if (NULL == atc->pcm)
+		return -ENOMEM;
+
+	daio_mgr = (struct daio_mgr *)atc->rsc_mgrs[DAIO];
+	da_desc.msr = atc->msr;
+	for (i = 0, atc->n_daio = 0; i < DAIONUM-1; i++) {
+		da_desc.type = i;
+		err = daio_mgr->get_daio(daio_mgr, &da_desc,
+					(struct daio **)&atc->daios[i]);
+		if (err) {
+			printk(KERN_ERR "ctxfi: Failed to get DAIO "
+					"resource %d!!!\n", i);
+			return err;
+		}
+		atc->n_daio++;
+	}
+	if (atc->model == CTSB073X)
+		da_desc.type = SPDIFI1;
+	else
+		da_desc.type = SPDIFIO;
+	err = daio_mgr->get_daio(daio_mgr, &da_desc,
+				(struct daio **)&atc->daios[i]);
+	if (err) {
+		printk(KERN_ERR "ctxfi: Failed to get S/PDIF-in resource!!!\n");
+		return err;
+	}
+	atc->n_daio++;
+
+	src_mgr = atc->rsc_mgrs[SRC];
+	src_dsc.multi = 1;
+	src_dsc.msr = atc->msr;
+	src_dsc.mode = ARCRW;
+	for (i = 0, atc->n_src = 0; i < (2*2); i++) {
+		err = src_mgr->get_src(src_mgr, &src_dsc,
+					(struct src **)&atc->srcs[i]);
+		if (err)
+			return err;
+
+		atc->n_src++;
+	}
+
+	srcimp_mgr = atc->rsc_mgrs[SRCIMP];
+	srcimp_dsc.msr = 8; /* SRCIMPs for S/PDIFIn SRT */
+	for (i = 0, atc->n_srcimp = 0; i < (2*1); i++) {
+		err = srcimp_mgr->get_srcimp(srcimp_mgr, &srcimp_dsc,
+					(struct srcimp **)&atc->srcimps[i]);
+		if (err)
+			return err;
+
+		atc->n_srcimp++;
+	}
+	srcimp_dsc.msr = 8; /* SRCIMPs for LINE/MICIn SRT */
+	for (i = 0; i < (2*1); i++) {
+		err = srcimp_mgr->get_srcimp(srcimp_mgr, &srcimp_dsc,
+				(struct srcimp **)&atc->srcimps[2*1+i]);
+		if (err)
+			return err;
+
+		atc->n_srcimp++;
+	}
+
+	sum_mgr = atc->rsc_mgrs[SUM];
+	sum_dsc.msr = atc->msr;
+	for (i = 0, atc->n_pcm = 0; i < (2*4); i++) {
+		err = sum_mgr->get_sum(sum_mgr, &sum_dsc,
+					(struct sum **)&atc->pcm[i]);
+		if (err)
+			return err;
+
+		atc->n_pcm++;
+	}
+
+	err = ct_mixer_create(atc, (struct ct_mixer **)&atc->mixer);
+	if (err) {
+		printk(KERN_ERR "ctxfi: Failed to create mixer obj!!!\n");
+		return err;
+	}
+
+	return 0;
+}
+
+static void __devinit
+atc_connect_dai(struct src_mgr *src_mgr, struct dai *dai,
+		struct src **srcs, struct srcimp **srcimps)
+{
+	struct rsc *rscs[2] = {NULL};
+	struct src *src;
+	struct srcimp *srcimp;
+	int i = 0;
+
+	rscs[0] = &dai->daio.rscl;
+	rscs[1] = &dai->daio.rscr;
+	for (i = 0; i < 2; i++) {
+		src = srcs[i];
+		srcimp = srcimps[i];
+		srcimp->ops->map(srcimp, src, rscs[i]);
+		src_mgr->src_disable(src_mgr, src);
+	}
+
+	src_mgr->commit_write(src_mgr); /* Actually disable SRCs */
+
+	src = srcs[0];
+	src->ops->set_pm(src, 1);
+	for (i = 0; i < 2; i++) {
+		src = srcs[i];
+		src->ops->set_state(src, SRC_STATE_RUN);
+		src->ops->commit_write(src);
+		src_mgr->src_enable_s(src_mgr, src);
+	}
+
+	dai->ops->set_srt_srcl(dai, &(srcs[0]->rsc));
+	dai->ops->set_srt_srcr(dai, &(srcs[1]->rsc));
+
+	dai->ops->set_enb_src(dai, 1);
+	dai->ops->set_enb_srt(dai, 1);
+	dai->ops->commit_write(dai);
+
+	src_mgr->commit_write(src_mgr); /* Synchronously enable SRCs */
+}
+
+static void __devinit atc_connect_resources(struct ct_atc *atc)
+{
+	struct dai *dai;
+	struct dao *dao;
+	struct src *src;
+	struct sum *sum;
+	struct ct_mixer *mixer;
+	struct rsc *rscs[2] = {NULL};
+	int i, j;
+
+	mixer = atc->mixer;
+
+	for (i = MIX_WAVE_FRONT, j = LINEO1; i <= MIX_SPDIF_OUT; i++, j++) {
+		mixer->get_output_ports(mixer, i, &rscs[0], &rscs[1]);
+		dao = container_of(atc->daios[j], struct dao, daio);
+		dao->ops->set_left_input(dao, rscs[0]);
+		dao->ops->set_right_input(dao, rscs[1]);
+	}
+
+	dai = container_of(atc->daios[LINEIM], struct dai, daio);
+	atc_connect_dai(atc->rsc_mgrs[SRC], dai,
+			(struct src **)&atc->srcs[2],
+			(struct srcimp **)&atc->srcimps[2]);
+	src = atc->srcs[2];
+	mixer->set_input_left(mixer, MIX_LINE_IN, &src->rsc);
+	src = atc->srcs[3];
+	mixer->set_input_right(mixer, MIX_LINE_IN, &src->rsc);
+
+	dai = container_of(atc->daios[SPDIFIO], struct dai, daio);
+	atc_connect_dai(atc->rsc_mgrs[SRC], dai,
+			(struct src **)&atc->srcs[0],
+			(struct srcimp **)&atc->srcimps[0]);
+
+	src = atc->srcs[0];
+	mixer->set_input_left(mixer, MIX_SPDIF_IN, &src->rsc);
+	src = atc->srcs[1];
+	mixer->set_input_right(mixer, MIX_SPDIF_IN, &src->rsc);
+
+	for (i = MIX_PCMI_FRONT, j = 0; i <= MIX_PCMI_SURROUND; i++, j += 2) {
+		sum = atc->pcm[j];
+		mixer->set_input_left(mixer, i, &sum->rsc);
+		sum = atc->pcm[j+1];
+		mixer->set_input_right(mixer, i, &sum->rsc);
+	}
+}
+
+static struct ct_atc atc_preset __devinitdata = {
+	.map_audio_buffer = ct_map_audio_buffer,
+	.unmap_audio_buffer = ct_unmap_audio_buffer,
+	.pcm_playback_prepare = atc_pcm_playback_prepare,
+	.pcm_release_resources = atc_pcm_release_resources,
+	.pcm_playback_start = atc_pcm_playback_start,
+	.pcm_playback_stop = atc_pcm_stop,
+	.pcm_playback_position = atc_pcm_playback_position,
+	.pcm_capture_prepare = atc_pcm_capture_prepare,
+	.pcm_capture_start = atc_pcm_capture_start,
+	.pcm_capture_stop = atc_pcm_stop,
+	.pcm_capture_position = atc_pcm_capture_position,
+	.spdif_passthru_playback_prepare = spdif_passthru_playback_prepare,
+	.get_ptp_phys = atc_get_ptp_phys,
+	.select_line_in = atc_select_line_in,
+	.select_mic_in = atc_select_mic_in,
+	.select_digit_io = atc_select_digit_io,
+	.line_front_unmute = atc_line_front_unmute,
+	.line_surround_unmute = atc_line_surround_unmute,
+	.line_clfe_unmute = atc_line_clfe_unmute,
+	.line_rear_unmute = atc_line_rear_unmute,
+	.line_in_unmute = atc_line_in_unmute,
+	.spdif_out_unmute = atc_spdif_out_unmute,
+	.spdif_in_unmute = atc_spdif_in_unmute,
+	.spdif_out_get_status = atc_spdif_out_get_status,
+	.spdif_out_set_status = atc_spdif_out_set_status,
+	.spdif_out_passthru = atc_spdif_out_passthru,
+	.have_digit_io_switch = atc_have_digit_io_switch,
+};
+
+/**
+ *  ct_atc_create - create and initialize a hardware manager
+ *  @card: corresponding alsa card object
+ *  @pci: corresponding kernel pci device object
+ *  @ratc: return created object address in it
+ *
+ *  Creates and initializes a hardware manager.
+ *
+ *  Creates kmallocated ct_atc structure. Initializes hardware.
+ *  Returns 0 if suceeds, or negative error code if fails.
+ */
+
+int __devinit ct_atc_create(struct snd_card *card, struct pci_dev *pci,
+			    unsigned int rsr, unsigned int msr,
+			    int chip_type, struct ct_atc **ratc)
+{
+	struct ct_atc *atc;
+	static struct snd_device_ops ops = {
+		.dev_free = atc_dev_free,
+	};
+	int err;
+
+	*ratc = NULL;
+
+	atc = kzalloc(sizeof(*atc), GFP_KERNEL);
+	if (NULL == atc)
+		return -ENOMEM;
+
+	/* Set operations */
+	*atc = atc_preset;
+
+	atc->card = card;
+	atc->pci = pci;
+	atc->rsr = rsr;
+	atc->msr = msr;
+	atc->chip_type = chip_type;
+
+	spin_lock_init(&atc->atc_lock);
+
+	/* Find card model */
+	err = atc_identify_card(atc);
+	if (err < 0) {
+		printk(KERN_ERR "ctatc: Card not recognised\n");
+		goto error1;
+	}
+
+	/* Set up device virtual memory management object */
+	err = ct_vm_create(&atc->vm);
+	if (err < 0)
+		goto error1;
+
+	/* Create all atc hw devices */
+	err = atc_create_hw_devs(atc);
+	if (err < 0)
+		goto error1;
+
+	/* Get resources */
+	err = atc_get_resources(atc);
+	if (err < 0)
+		goto error1;
+
+	/* Build topology */
+	atc_connect_resources(atc);
+
+	atc->timer = ct_timer_new(atc);
+	if (!atc->timer)
+		goto error1;
+
+	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, atc, &ops);
+	if (err < 0)
+		goto error1;
+
+	snd_card_set_dev(card, &pci->dev);
+
+	*ratc = atc;
+	return 0;
+
+error1:
+	ct_atc_destroy(atc);
+	printk(KERN_ERR "ctxfi: Something wrong!!!\n");
+	return err;
+}
diff --git a/sound/pci/ctxfi/ctatc.h b/sound/pci/ctxfi/ctatc.h
new file mode 100644
index 000000000000..a03347232e84
--- /dev/null
+++ b/sound/pci/ctxfi/ctatc.h
@@ -0,0 +1,147 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	ctatc.h
+ *
+ * @Brief
+ * This file contains the definition of the device resource management object.
+ *
+ * @Author	Liu Chun
+ * @Date 	Mar 28 2008
+ *
+ */
+
+#ifndef CTATC_H
+#define CTATC_H
+
+#include <linux/types.h>
+#include <linux/spinlock_types.h>
+#include <linux/pci.h>
+#include <linux/timer.h>
+#include <sound/core.h>
+
+#include "ctvmem.h"
+#include "ctresource.h"
+
+enum CTALSADEVS {		/* Types of alsa devices */
+	FRONT,
+	SURROUND,
+	CLFE,
+	SIDE,
+	IEC958,
+	MIXER,
+	NUM_CTALSADEVS		/* This should always be the last */
+};
+
+struct ct_atc_chip_sub_details {
+	u16 subsys;
+	const char *nm_model;
+};
+
+struct ct_atc_chip_details {
+	u16 vendor;
+	u16 device;
+	const struct ct_atc_chip_sub_details *sub_details;
+	const char *nm_card;
+};
+
+struct ct_atc;
+struct ct_timer;
+struct ct_timer_instance;
+
+/* alsa pcm stream descriptor */
+struct ct_atc_pcm {
+	struct snd_pcm_substream *substream;
+	void (*interrupt)(struct ct_atc_pcm *apcm);
+	struct ct_timer_instance *timer;
+	unsigned int started:1;
+
+	/* Only mono and interleaved modes are supported now. */
+	struct ct_vm_block *vm_block;
+	void *src;		/* SRC for interacting with host memory */
+	void **srccs;		/* SRCs for sample rate conversion */
+	void **srcimps;		/* SRC Input Mappers */
+	void **amixers;		/* AMIXERs for routing converted data */
+	void *mono;		/* A SUM resource for mixing chs to one */
+	unsigned char n_srcc;	/* Number of converting SRCs */
+	unsigned char n_srcimp;	/* Number of SRC Input Mappers */
+	unsigned char n_amixer;	/* Number of AMIXERs */
+};
+
+/* Chip resource management object */
+struct ct_atc {
+	struct pci_dev *pci;
+	struct snd_card *card;
+	unsigned int rsr; /* reference sample rate in Hz */
+	unsigned int msr; /* master sample rate in rsr */
+	unsigned int pll_rate; /* current rate of Phase Lock Loop */
+
+	int chip_type;
+	int model;
+	const char *chip_name;
+	const char *model_name;
+
+	struct ct_vm *vm; /* device virtual memory manager for this card */
+	int (*map_audio_buffer)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
+	void (*unmap_audio_buffer)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
+	unsigned long (*get_ptp_phys)(struct ct_atc *atc, int index);
+
+	spinlock_t atc_lock;
+
+	int (*pcm_playback_prepare)(struct ct_atc *atc,
+				    struct ct_atc_pcm *apcm);
+	int (*pcm_playback_start)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
+	int (*pcm_playback_stop)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
+	int (*pcm_playback_position)(struct ct_atc *atc,
+				     struct ct_atc_pcm *apcm);
+	int (*spdif_passthru_playback_prepare)(struct ct_atc *atc,
+					       struct ct_atc_pcm *apcm);
+	int (*pcm_capture_prepare)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
+	int (*pcm_capture_start)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
+	int (*pcm_capture_stop)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
+	int (*pcm_capture_position)(struct ct_atc *atc,
+				    struct ct_atc_pcm *apcm);
+	int (*pcm_release_resources)(struct ct_atc *atc,
+				     struct ct_atc_pcm *apcm);
+	int (*select_line_in)(struct ct_atc *atc);
+	int (*select_mic_in)(struct ct_atc *atc);
+	int (*select_digit_io)(struct ct_atc *atc);
+	int (*line_front_unmute)(struct ct_atc *atc, unsigned char state);
+	int (*line_surround_unmute)(struct ct_atc *atc, unsigned char state);
+	int (*line_clfe_unmute)(struct ct_atc *atc, unsigned char state);
+	int (*line_rear_unmute)(struct ct_atc *atc, unsigned char state);
+	int (*line_in_unmute)(struct ct_atc *atc, unsigned char state);
+	int (*spdif_out_unmute)(struct ct_atc *atc, unsigned char state);
+	int (*spdif_in_unmute)(struct ct_atc *atc, unsigned char state);
+	int (*spdif_out_get_status)(struct ct_atc *atc, unsigned int *status);
+	int (*spdif_out_set_status)(struct ct_atc *atc, unsigned int status);
+	int (*spdif_out_passthru)(struct ct_atc *atc, unsigned char state);
+	int (*have_digit_io_switch)(struct ct_atc *atc);
+
+	/* Don't touch! Used for internal object. */
+	void *rsc_mgrs[NUM_RSCTYP]; /* chip resource managers */
+	void *mixer;		/* internal mixer object */
+	void *hw;		/* chip specific hardware access object */
+	void **daios;		/* digital audio io resources */
+	void **pcm;		/* SUMs for collecting all pcm stream */
+	void **srcs;		/* Sample Rate Converters for input signal */
+	void **srcimps;		/* input mappers for SRCs */
+	unsigned char n_daio;
+	unsigned char n_src;
+	unsigned char n_srcimp;
+	unsigned char n_pcm;
+
+	struct ct_timer *timer;
+};
+
+
+int __devinit ct_atc_create(struct snd_card *card, struct pci_dev *pci,
+			    unsigned int rsr, unsigned int msr, int chip_type,
+			    struct ct_atc **ratc);
+int __devinit ct_atc_create_alsa_devs(struct ct_atc *atc);
+
+#endif /* CTATC_H */
diff --git a/sound/pci/ctxfi/ctdaio.c b/sound/pci/ctxfi/ctdaio.c
new file mode 100644
index 000000000000..082e35c08c02
--- /dev/null
+++ b/sound/pci/ctxfi/ctdaio.c
@@ -0,0 +1,769 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	ctdaio.c
+ *
+ * @Brief
+ * This file contains the implementation of Digital Audio Input Output
+ * resource management object.
+ *
+ * @Author	Liu Chun
+ * @Date 	May 23 2008
+ *
+ */
+
+#include "ctdaio.h"
+#include "cthardware.h"
+#include "ctimap.h"
+#include <linux/slab.h>
+#include <linux/kernel.h>
+
+#define DAIO_RESOURCE_NUM	NUM_DAIOTYP
+#define DAIO_OUT_MAX		SPDIFOO
+
+union daio_usage {
+	struct {
+		unsigned short lineo1:1;
+		unsigned short lineo2:1;
+		unsigned short lineo3:1;
+		unsigned short lineo4:1;
+		unsigned short spdifoo:1;
+		unsigned short lineim:1;
+		unsigned short spdifio:1;
+		unsigned short spdifi1:1;
+	} bf;
+	unsigned short data;
+};
+
+struct daio_rsc_idx {
+	unsigned short left;
+	unsigned short right;
+};
+
+struct daio_rsc_idx idx_20k1[NUM_DAIOTYP] = {
+	[LINEO1] = {.left = 0x00, .right = 0x01},
+	[LINEO2] = {.left = 0x18, .right = 0x19},
+	[LINEO3] = {.left = 0x08, .right = 0x09},
+	[LINEO4] = {.left = 0x10, .right = 0x11},
+	[LINEIM] = {.left = 0x1b5, .right = 0x1bd},
+	[SPDIFOO] = {.left = 0x20, .right = 0x21},
+	[SPDIFIO] = {.left = 0x15, .right = 0x1d},
+	[SPDIFI1] = {.left = 0x95, .right = 0x9d},
+};
+
+struct daio_rsc_idx idx_20k2[NUM_DAIOTYP] = {
+	[LINEO1] = {.left = 0x40, .right = 0x41},
+	[LINEO2] = {.left = 0x70, .right = 0x71},
+	[LINEO3] = {.left = 0x50, .right = 0x51},
+	[LINEO4] = {.left = 0x60, .right = 0x61},
+	[LINEIM] = {.left = 0x45, .right = 0xc5},
+	[SPDIFOO] = {.left = 0x00, .right = 0x01},
+	[SPDIFIO] = {.left = 0x05, .right = 0x85},
+};
+
+static int daio_master(struct rsc *rsc)
+{
+	/* Actually, this is not the resource index of DAIO.
+	 * For DAO, it is the input mapper index. And, for DAI,
+	 * it is the output time-slot index. */
+	return rsc->conj = rsc->idx;
+}
+
+static int daio_index(const struct rsc *rsc)
+{
+	return rsc->conj;
+}
+
+static int daio_out_next_conj(struct rsc *rsc)
+{
+	return rsc->conj += 2;
+}
+
+static int daio_in_next_conj_20k1(struct rsc *rsc)
+{
+	return rsc->conj += 0x200;
+}
+
+static int daio_in_next_conj_20k2(struct rsc *rsc)
+{
+	return rsc->conj += 0x100;
+}
+
+static struct rsc_ops daio_out_rsc_ops = {
+	.master		= daio_master,
+	.next_conj	= daio_out_next_conj,
+	.index		= daio_index,
+	.output_slot	= NULL,
+};
+
+static struct rsc_ops daio_in_rsc_ops_20k1 = {
+	.master		= daio_master,
+	.next_conj	= daio_in_next_conj_20k1,
+	.index		= NULL,
+	.output_slot	= daio_index,
+};
+
+static struct rsc_ops daio_in_rsc_ops_20k2 = {
+	.master		= daio_master,
+	.next_conj	= daio_in_next_conj_20k2,
+	.index		= NULL,
+	.output_slot	= daio_index,
+};
+
+static unsigned int daio_device_index(enum DAIOTYP type, struct hw *hw)
+{
+	switch (hw->chip_type) {
+	case ATC20K1:
+		switch (type) {
+		case SPDIFOO:	return 0;
+		case SPDIFIO:	return 0;
+		case SPDIFI1:	return 1;
+		case LINEO1:	return 4;
+		case LINEO2:	return 7;
+		case LINEO3:	return 5;
+		case LINEO4:	return 6;
+		case LINEIM:	return 7;
+		default:	return -EINVAL;
+		}
+	case ATC20K2:
+		switch (type) {
+		case SPDIFOO:	return 0;
+		case SPDIFIO:	return 0;
+		case LINEO1:	return 4;
+		case LINEO2:	return 7;
+		case LINEO3:	return 5;
+		case LINEO4:	return 6;
+		case LINEIM:	return 4;
+		default:	return -EINVAL;
+		}
+	default:
+		return -EINVAL;
+	}
+}
+
+static int dao_rsc_reinit(struct dao *dao, const struct dao_desc *desc);
+
+static int dao_spdif_get_spos(struct dao *dao, unsigned int *spos)
+{
+	((struct hw *)dao->hw)->dao_get_spos(dao->ctrl_blk, spos);
+	return 0;
+}
+
+static int dao_spdif_set_spos(struct dao *dao, unsigned int spos)
+{
+	((struct hw *)dao->hw)->dao_set_spos(dao->ctrl_blk, spos);
+	return 0;
+}
+
+static int dao_commit_write(struct dao *dao)
+{
+	((struct hw *)dao->hw)->dao_commit_write(dao->hw,
+		daio_device_index(dao->daio.type, dao->hw), dao->ctrl_blk);
+	return 0;
+}
+
+static int dao_set_left_input(struct dao *dao, struct rsc *input)
+{
+	struct imapper *entry;
+	struct daio *daio = &dao->daio;
+	int i;
+
+	entry = kzalloc((sizeof(*entry) * daio->rscl.msr), GFP_KERNEL);
+	if (NULL == entry)
+		return -ENOMEM;
+
+	/* Program master and conjugate resources */
+	input->ops->master(input);
+	daio->rscl.ops->master(&daio->rscl);
+	for (i = 0; i < daio->rscl.msr; i++, entry++) {
+		entry->slot = input->ops->output_slot(input);
+		entry->user = entry->addr = daio->rscl.ops->index(&daio->rscl);
+		dao->mgr->imap_add(dao->mgr, entry);
+		dao->imappers[i] = entry;
+
+		input->ops->next_conj(input);
+		daio->rscl.ops->next_conj(&daio->rscl);
+	}
+	input->ops->master(input);
+	daio->rscl.ops->master(&daio->rscl);
+
+	return 0;
+}
+
+static int dao_set_right_input(struct dao *dao, struct rsc *input)
+{
+	struct imapper *entry;
+	struct daio *daio = &dao->daio;
+	int i;
+
+	entry = kzalloc((sizeof(*entry) * daio->rscr.msr), GFP_KERNEL);
+	if (NULL == entry)
+		return -ENOMEM;
+
+	/* Program master and conjugate resources */
+	input->ops->master(input);
+	daio->rscr.ops->master(&daio->rscr);
+	for (i = 0; i < daio->rscr.msr; i++, entry++) {
+		entry->slot = input->ops->output_slot(input);
+		entry->user = entry->addr = daio->rscr.ops->index(&daio->rscr);
+		dao->mgr->imap_add(dao->mgr, entry);
+		dao->imappers[daio->rscl.msr + i] = entry;
+
+		input->ops->next_conj(input);
+		daio->rscr.ops->next_conj(&daio->rscr);
+	}
+	input->ops->master(input);
+	daio->rscr.ops->master(&daio->rscr);
+
+	return 0;
+}
+
+static int dao_clear_left_input(struct dao *dao)
+{
+	struct imapper *entry;
+	struct daio *daio = &dao->daio;
+	int i;
+
+	if (NULL == dao->imappers[0])
+		return 0;
+
+	entry = dao->imappers[0];
+	dao->mgr->imap_delete(dao->mgr, entry);
+	/* Program conjugate resources */
+	for (i = 1; i < daio->rscl.msr; i++) {
+		entry = dao->imappers[i];
+		dao->mgr->imap_delete(dao->mgr, entry);
+		dao->imappers[i] = NULL;
+	}
+
+	kfree(dao->imappers[0]);
+	dao->imappers[0] = NULL;
+
+	return 0;
+}
+
+static int dao_clear_right_input(struct dao *dao)
+{
+	struct imapper *entry;
+	struct daio *daio = &dao->daio;
+	int i;
+
+	if (NULL == dao->imappers[daio->rscl.msr])
+		return 0;
+
+	entry = dao->imappers[daio->rscl.msr];
+	dao->mgr->imap_delete(dao->mgr, entry);
+	/* Program conjugate resources */
+	for (i = 1; i < daio->rscr.msr; i++) {
+		entry = dao->imappers[daio->rscl.msr + i];
+		dao->mgr->imap_delete(dao->mgr, entry);
+		dao->imappers[daio->rscl.msr + i] = NULL;
+	}
+
+	kfree(dao->imappers[daio->rscl.msr]);
+	dao->imappers[daio->rscl.msr] = NULL;
+
+	return 0;
+}
+
+static struct dao_rsc_ops dao_ops = {
+	.set_spos		= dao_spdif_set_spos,
+	.commit_write		= dao_commit_write,
+	.get_spos		= dao_spdif_get_spos,
+	.reinit			= dao_rsc_reinit,
+	.set_left_input		= dao_set_left_input,
+	.set_right_input	= dao_set_right_input,
+	.clear_left_input	= dao_clear_left_input,
+	.clear_right_input	= dao_clear_right_input,
+};
+
+static int dai_set_srt_srcl(struct dai *dai, struct rsc *src)
+{
+	src->ops->master(src);
+	((struct hw *)dai->hw)->dai_srt_set_srcm(dai->ctrl_blk,
+						src->ops->index(src));
+	return 0;
+}
+
+static int dai_set_srt_srcr(struct dai *dai, struct rsc *src)
+{
+	src->ops->master(src);
+	((struct hw *)dai->hw)->dai_srt_set_srco(dai->ctrl_blk,
+						src->ops->index(src));
+	return 0;
+}
+
+static int dai_set_srt_msr(struct dai *dai, unsigned int msr)
+{
+	unsigned int rsr;
+
+	for (rsr = 0; msr > 1; msr >>= 1)
+		rsr++;
+
+	((struct hw *)dai->hw)->dai_srt_set_rsr(dai->ctrl_blk, rsr);
+	return 0;
+}
+
+static int dai_set_enb_src(struct dai *dai, unsigned int enb)
+{
+	((struct hw *)dai->hw)->dai_srt_set_ec(dai->ctrl_blk, enb);
+	return 0;
+}
+
+static int dai_set_enb_srt(struct dai *dai, unsigned int enb)
+{
+	((struct hw *)dai->hw)->dai_srt_set_et(dai->ctrl_blk, enb);
+	return 0;
+}
+
+static int dai_commit_write(struct dai *dai)
+{
+	((struct hw *)dai->hw)->dai_commit_write(dai->hw,
+		daio_device_index(dai->daio.type, dai->hw), dai->ctrl_blk);
+	return 0;
+}
+
+static struct dai_rsc_ops dai_ops = {
+	.set_srt_srcl		= dai_set_srt_srcl,
+	.set_srt_srcr		= dai_set_srt_srcr,
+	.set_srt_msr		= dai_set_srt_msr,
+	.set_enb_src		= dai_set_enb_src,
+	.set_enb_srt		= dai_set_enb_srt,
+	.commit_write		= dai_commit_write,
+};
+
+static int daio_rsc_init(struct daio *daio,
+			 const struct daio_desc *desc,
+			 void *hw)
+{
+	int err;
+	unsigned int idx_l, idx_r;
+
+	switch (((struct hw *)hw)->chip_type) {
+	case ATC20K1:
+		idx_l = idx_20k1[desc->type].left;
+		idx_r = idx_20k1[desc->type].right;
+		break;
+	case ATC20K2:
+		idx_l = idx_20k2[desc->type].left;
+		idx_r = idx_20k2[desc->type].right;
+		break;
+	default:
+		return -EINVAL;
+	}
+	err = rsc_init(&daio->rscl, idx_l, DAIO, desc->msr, hw);
+	if (err)
+		return err;
+
+	err = rsc_init(&daio->rscr, idx_r, DAIO, desc->msr, hw);
+	if (err)
+		goto error1;
+
+	/* Set daio->rscl/r->ops to daio specific ones */
+	if (desc->type <= DAIO_OUT_MAX) {
+		daio->rscl.ops = daio->rscr.ops = &daio_out_rsc_ops;
+	} else {
+		switch (((struct hw *)hw)->chip_type) {
+		case ATC20K1:
+			daio->rscl.ops = daio->rscr.ops = &daio_in_rsc_ops_20k1;
+			break;
+		case ATC20K2:
+			daio->rscl.ops = daio->rscr.ops = &daio_in_rsc_ops_20k2;
+			break;
+		default:
+			break;
+		}
+	}
+	daio->type = desc->type;
+
+	return 0;
+
+error1:
+	rsc_uninit(&daio->rscl);
+	return err;
+}
+
+static int daio_rsc_uninit(struct daio *daio)
+{
+	rsc_uninit(&daio->rscl);
+	rsc_uninit(&daio->rscr);
+
+	return 0;
+}
+
+static int dao_rsc_init(struct dao *dao,
+			const struct daio_desc *desc,
+			struct daio_mgr *mgr)
+{
+	struct hw *hw = mgr->mgr.hw;
+	unsigned int conf;
+	int err;
+
+	err = daio_rsc_init(&dao->daio, desc, mgr->mgr.hw);
+	if (err)
+		return err;
+
+	dao->imappers = kzalloc(sizeof(void *)*desc->msr*2, GFP_KERNEL);
+	if (NULL == dao->imappers) {
+		err = -ENOMEM;
+		goto error1;
+	}
+	dao->ops = &dao_ops;
+	dao->mgr = mgr;
+	dao->hw = hw;
+	err = hw->dao_get_ctrl_blk(&dao->ctrl_blk);
+	if (err)
+		goto error2;
+
+	hw->daio_mgr_dsb_dao(mgr->mgr.ctrl_blk,
+			daio_device_index(dao->daio.type, hw));
+	hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
+
+	conf = (desc->msr & 0x7) | (desc->passthru << 3);
+	hw->daio_mgr_dao_init(mgr->mgr.ctrl_blk,
+			daio_device_index(dao->daio.type, hw), conf);
+	hw->daio_mgr_enb_dao(mgr->mgr.ctrl_blk,
+			daio_device_index(dao->daio.type, hw));
+	hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
+
+	return 0;
+
+error2:
+	kfree(dao->imappers);
+	dao->imappers = NULL;
+error1:
+	daio_rsc_uninit(&dao->daio);
+	return err;
+}
+
+static int dao_rsc_uninit(struct dao *dao)
+{
+	if (NULL != dao->imappers) {
+		if (NULL != dao->imappers[0])
+			dao_clear_left_input(dao);
+
+		if (NULL != dao->imappers[dao->daio.rscl.msr])
+			dao_clear_right_input(dao);
+
+		kfree(dao->imappers);
+		dao->imappers = NULL;
+	}
+	((struct hw *)dao->hw)->dao_put_ctrl_blk(dao->ctrl_blk);
+	dao->hw = dao->ctrl_blk = NULL;
+	daio_rsc_uninit(&dao->daio);
+
+	return 0;
+}
+
+static int dao_rsc_reinit(struct dao *dao, const struct dao_desc *desc)
+{
+	struct daio_mgr *mgr = dao->mgr;
+	struct daio_desc dsc = {0};
+
+	dsc.type = dao->daio.type;
+	dsc.msr = desc->msr;
+	dsc.passthru = desc->passthru;
+	dao_rsc_uninit(dao);
+	return dao_rsc_init(dao, &dsc, mgr);
+}
+
+static int dai_rsc_init(struct dai *dai,
+			const struct daio_desc *desc,
+			struct daio_mgr *mgr)
+{
+	int err;
+	struct hw *hw = mgr->mgr.hw;
+	unsigned int rsr, msr;
+
+	err = daio_rsc_init(&dai->daio, desc, mgr->mgr.hw);
+	if (err)
+		return err;
+
+	dai->ops = &dai_ops;
+	dai->hw = mgr->mgr.hw;
+	err = hw->dai_get_ctrl_blk(&dai->ctrl_blk);
+	if (err)
+		goto error1;
+
+	for (rsr = 0, msr = desc->msr; msr > 1; msr >>= 1)
+		rsr++;
+
+	hw->dai_srt_set_rsr(dai->ctrl_blk, rsr);
+	hw->dai_srt_set_drat(dai->ctrl_blk, 0);
+	/* default to disabling control of a SRC */
+	hw->dai_srt_set_ec(dai->ctrl_blk, 0);
+	hw->dai_srt_set_et(dai->ctrl_blk, 0); /* default to disabling SRT */
+	hw->dai_commit_write(hw,
+		daio_device_index(dai->daio.type, dai->hw), dai->ctrl_blk);
+
+	return 0;
+
+error1:
+	daio_rsc_uninit(&dai->daio);
+	return err;
+}
+
+static int dai_rsc_uninit(struct dai *dai)
+{
+	((struct hw *)dai->hw)->dai_put_ctrl_blk(dai->ctrl_blk);
+	dai->hw = dai->ctrl_blk = NULL;
+	daio_rsc_uninit(&dai->daio);
+	return 0;
+}
+
+static int daio_mgr_get_rsc(struct rsc_mgr *mgr, enum DAIOTYP type)
+{
+	if (((union daio_usage *)mgr->rscs)->data & (0x1 << type))
+		return -ENOENT;
+
+	((union daio_usage *)mgr->rscs)->data |= (0x1 << type);
+
+	return 0;
+}
+
+static int daio_mgr_put_rsc(struct rsc_mgr *mgr, enum DAIOTYP type)
+{
+	((union daio_usage *)mgr->rscs)->data &= ~(0x1 << type);
+
+	return 0;
+}
+
+static int get_daio_rsc(struct daio_mgr *mgr,
+			const struct daio_desc *desc,
+			struct daio **rdaio)
+{
+	int err;
+	struct dai *dai = NULL;
+	struct dao *dao = NULL;
+	unsigned long flags;
+
+	*rdaio = NULL;
+
+	/* Check whether there are sufficient daio resources to meet request. */
+	spin_lock_irqsave(&mgr->mgr_lock, flags);
+	err = daio_mgr_get_rsc(&mgr->mgr, desc->type);
+	spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+	if (err) {
+		printk(KERN_ERR "Can't meet DAIO resource request!\n");
+		return err;
+	}
+
+	/* Allocate mem for daio resource */
+	if (desc->type <= DAIO_OUT_MAX) {
+		dao = kzalloc(sizeof(*dao), GFP_KERNEL);
+		if (NULL == dao) {
+			err = -ENOMEM;
+			goto error;
+		}
+		err = dao_rsc_init(dao, desc, mgr);
+		if (err)
+			goto error;
+
+		*rdaio = &dao->daio;
+	} else {
+		dai = kzalloc(sizeof(*dai), GFP_KERNEL);
+		if (NULL == dai) {
+			err = -ENOMEM;
+			goto error;
+		}
+		err = dai_rsc_init(dai, desc, mgr);
+		if (err)
+			goto error;
+
+		*rdaio = &dai->daio;
+	}
+
+	mgr->daio_enable(mgr, *rdaio);
+	mgr->commit_write(mgr);
+
+	return 0;
+
+error:
+	if (NULL != dao)
+		kfree(dao);
+	else if (NULL != dai)
+		kfree(dai);
+
+	spin_lock_irqsave(&mgr->mgr_lock, flags);
+	daio_mgr_put_rsc(&mgr->mgr, desc->type);
+	spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+	return err;
+}
+
+static int put_daio_rsc(struct daio_mgr *mgr, struct daio *daio)
+{
+	unsigned long flags;
+
+	mgr->daio_disable(mgr, daio);
+	mgr->commit_write(mgr);
+
+	spin_lock_irqsave(&mgr->mgr_lock, flags);
+	daio_mgr_put_rsc(&mgr->mgr, daio->type);
+	spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+
+	if (daio->type <= DAIO_OUT_MAX) {
+		dao_rsc_uninit(container_of(daio, struct dao, daio));
+		kfree(container_of(daio, struct dao, daio));
+	} else {
+		dai_rsc_uninit(container_of(daio, struct dai, daio));
+		kfree(container_of(daio, struct dai, daio));
+	}
+
+	return 0;
+}
+
+static int daio_mgr_enb_daio(struct daio_mgr *mgr, struct daio *daio)
+{
+	struct hw *hw = mgr->mgr.hw;
+
+	if (DAIO_OUT_MAX >= daio->type) {
+		hw->daio_mgr_enb_dao(mgr->mgr.ctrl_blk,
+				daio_device_index(daio->type, hw));
+	} else {
+		hw->daio_mgr_enb_dai(mgr->mgr.ctrl_blk,
+				daio_device_index(daio->type, hw));
+	}
+	return 0;
+}
+
+static int daio_mgr_dsb_daio(struct daio_mgr *mgr, struct daio *daio)
+{
+	struct hw *hw = mgr->mgr.hw;
+
+	if (DAIO_OUT_MAX >= daio->type) {
+		hw->daio_mgr_dsb_dao(mgr->mgr.ctrl_blk,
+				daio_device_index(daio->type, hw));
+	} else {
+		hw->daio_mgr_dsb_dai(mgr->mgr.ctrl_blk,
+				daio_device_index(daio->type, hw));
+	}
+	return 0;
+}
+
+static int daio_map_op(void *data, struct imapper *entry)
+{
+	struct rsc_mgr *mgr = &((struct daio_mgr *)data)->mgr;
+	struct hw *hw = mgr->hw;
+
+	hw->daio_mgr_set_imaparc(mgr->ctrl_blk, entry->slot);
+	hw->daio_mgr_set_imapnxt(mgr->ctrl_blk, entry->next);
+	hw->daio_mgr_set_imapaddr(mgr->ctrl_blk, entry->addr);
+	hw->daio_mgr_commit_write(mgr->hw, mgr->ctrl_blk);
+
+	return 0;
+}
+
+static int daio_imap_add(struct daio_mgr *mgr, struct imapper *entry)
+{
+	unsigned long flags;
+	int err;
+
+	spin_lock_irqsave(&mgr->imap_lock, flags);
+	if ((0 == entry->addr) && (mgr->init_imap_added)) {
+		input_mapper_delete(&mgr->imappers, mgr->init_imap,
+							daio_map_op, mgr);
+		mgr->init_imap_added = 0;
+	}
+	err = input_mapper_add(&mgr->imappers, entry, daio_map_op, mgr);
+	spin_unlock_irqrestore(&mgr->imap_lock, flags);
+
+	return err;
+}
+
+static int daio_imap_delete(struct daio_mgr *mgr, struct imapper *entry)
+{
+	unsigned long flags;
+	int err;
+
+	spin_lock_irqsave(&mgr->imap_lock, flags);
+	err = input_mapper_delete(&mgr->imappers, entry, daio_map_op, mgr);
+	if (list_empty(&mgr->imappers)) {
+		input_mapper_add(&mgr->imappers, mgr->init_imap,
+							daio_map_op, mgr);
+		mgr->init_imap_added = 1;
+	}
+	spin_unlock_irqrestore(&mgr->imap_lock, flags);
+
+	return err;
+}
+
+static int daio_mgr_commit_write(struct daio_mgr *mgr)
+{
+	struct hw *hw = mgr->mgr.hw;
+
+	hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
+	return 0;
+}
+
+int daio_mgr_create(void *hw, struct daio_mgr **rdaio_mgr)
+{
+	int err, i;
+	struct daio_mgr *daio_mgr;
+	struct imapper *entry;
+
+	*rdaio_mgr = NULL;
+	daio_mgr = kzalloc(sizeof(*daio_mgr), GFP_KERNEL);
+	if (NULL == daio_mgr)
+		return -ENOMEM;
+
+	err = rsc_mgr_init(&daio_mgr->mgr, DAIO, DAIO_RESOURCE_NUM, hw);
+	if (err)
+		goto error1;
+
+	spin_lock_init(&daio_mgr->mgr_lock);
+	spin_lock_init(&daio_mgr->imap_lock);
+	INIT_LIST_HEAD(&daio_mgr->imappers);
+	entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+	if (NULL == entry) {
+		err = -ENOMEM;
+		goto error2;
+	}
+	entry->slot = entry->addr = entry->next = entry->user = 0;
+	list_add(&entry->list, &daio_mgr->imappers);
+	daio_mgr->init_imap = entry;
+	daio_mgr->init_imap_added = 1;
+
+	daio_mgr->get_daio = get_daio_rsc;
+	daio_mgr->put_daio = put_daio_rsc;
+	daio_mgr->daio_enable = daio_mgr_enb_daio;
+	daio_mgr->daio_disable = daio_mgr_dsb_daio;
+	daio_mgr->imap_add = daio_imap_add;
+	daio_mgr->imap_delete = daio_imap_delete;
+	daio_mgr->commit_write = daio_mgr_commit_write;
+
+	for (i = 0; i < 8; i++) {
+		((struct hw *)hw)->daio_mgr_dsb_dao(daio_mgr->mgr.ctrl_blk, i);
+		((struct hw *)hw)->daio_mgr_dsb_dai(daio_mgr->mgr.ctrl_blk, i);
+	}
+	((struct hw *)hw)->daio_mgr_commit_write(hw, daio_mgr->mgr.ctrl_blk);
+
+	*rdaio_mgr = daio_mgr;
+
+	return 0;
+
+error2:
+	rsc_mgr_uninit(&daio_mgr->mgr);
+error1:
+	kfree(daio_mgr);
+	return err;
+}
+
+int daio_mgr_destroy(struct daio_mgr *daio_mgr)
+{
+	unsigned long flags;
+
+	/* free daio input mapper list */
+	spin_lock_irqsave(&daio_mgr->imap_lock, flags);
+	free_input_mapper_list(&daio_mgr->imappers);
+	spin_unlock_irqrestore(&daio_mgr->imap_lock, flags);
+
+	rsc_mgr_uninit(&daio_mgr->mgr);
+	kfree(daio_mgr);
+
+	return 0;
+}
+
diff --git a/sound/pci/ctxfi/ctdaio.h b/sound/pci/ctxfi/ctdaio.h
new file mode 100644
index 000000000000..0f52ce571ee8
--- /dev/null
+++ b/sound/pci/ctxfi/ctdaio.h
@@ -0,0 +1,122 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	ctdaio.h
+ *
+ * @Brief
+ * This file contains the definition of Digital Audio Input Output
+ * resource management object.
+ *
+ * @Author	Liu Chun
+ * @Date 	May 23 2008
+ *
+ */
+
+#ifndef CTDAIO_H
+#define CTDAIO_H
+
+#include "ctresource.h"
+#include "ctimap.h"
+#include <linux/spinlock.h>
+#include <linux/list.h>
+
+/* Define the descriptor of a daio resource */
+enum DAIOTYP {
+	LINEO1,
+	LINEO2,
+	LINEO3,
+	LINEO4,
+	SPDIFOO,	/* S/PDIF Out (Flexijack/Optical) */
+	LINEIM,
+	SPDIFIO,	/* S/PDIF In (Flexijack/Optical) on the card */
+	SPDIFI1,	/* S/PDIF In on internal Drive Bay */
+	NUM_DAIOTYP
+};
+
+struct dao_rsc_ops;
+struct dai_rsc_ops;
+struct daio_mgr;
+
+struct daio {
+	struct rsc rscl;	/* Basic resource info for left TX/RX */
+	struct rsc rscr;	/* Basic resource info for right TX/RX */
+	enum DAIOTYP type;
+};
+
+struct dao {
+	struct daio daio;
+	struct dao_rsc_ops *ops;	/* DAO specific operations */
+	struct imapper **imappers;
+	struct daio_mgr *mgr;
+	void *hw;
+	void *ctrl_blk;
+};
+
+struct dai {
+	struct daio daio;
+	struct dai_rsc_ops *ops;	/* DAI specific operations */
+	void *hw;
+	void *ctrl_blk;
+};
+
+struct dao_desc {
+	unsigned int msr:4;
+	unsigned int passthru:1;
+};
+
+struct dao_rsc_ops {
+	int (*set_spos)(struct dao *dao, unsigned int spos);
+	int (*commit_write)(struct dao *dao);
+	int (*get_spos)(struct dao *dao, unsigned int *spos);
+	int (*reinit)(struct dao *dao, const struct dao_desc *desc);
+	int (*set_left_input)(struct dao *dao, struct rsc *input);
+	int (*set_right_input)(struct dao *dao, struct rsc *input);
+	int (*clear_left_input)(struct dao *dao);
+	int (*clear_right_input)(struct dao *dao);
+};
+
+struct dai_rsc_ops {
+	int (*set_srt_srcl)(struct dai *dai, struct rsc *src);
+	int (*set_srt_srcr)(struct dai *dai, struct rsc *src);
+	int (*set_srt_msr)(struct dai *dai, unsigned int msr);
+	int (*set_enb_src)(struct dai *dai, unsigned int enb);
+	int (*set_enb_srt)(struct dai *dai, unsigned int enb);
+	int (*commit_write)(struct dai *dai);
+};
+
+/* Define daio resource request description info */
+struct daio_desc {
+	unsigned int type:4;
+	unsigned int msr:4;
+	unsigned int passthru:1;
+};
+
+struct daio_mgr {
+	struct rsc_mgr mgr;	/* Basic resource manager info */
+	spinlock_t mgr_lock;
+	spinlock_t imap_lock;
+	struct list_head imappers;
+	struct imapper *init_imap;
+	unsigned int init_imap_added;
+
+	 /* request one daio resource */
+	int (*get_daio)(struct daio_mgr *mgr,
+			const struct daio_desc *desc, struct daio **rdaio);
+	/* return one daio resource */
+	int (*put_daio)(struct daio_mgr *mgr, struct daio *daio);
+	int (*daio_enable)(struct daio_mgr *mgr, struct daio *daio);
+	int (*daio_disable)(struct daio_mgr *mgr, struct daio *daio);
+	int (*imap_add)(struct daio_mgr *mgr, struct imapper *entry);
+	int (*imap_delete)(struct daio_mgr *mgr, struct imapper *entry);
+	int (*commit_write)(struct daio_mgr *mgr);
+};
+
+/* Constructor and destructor of daio resource manager */
+int daio_mgr_create(void *hw, struct daio_mgr **rdaio_mgr);
+int daio_mgr_destroy(struct daio_mgr *daio_mgr);
+
+#endif /* CTDAIO_H */
diff --git a/sound/pci/ctxfi/cthardware.c b/sound/pci/ctxfi/cthardware.c
new file mode 100644
index 000000000000..8e64f4862e85
--- /dev/null
+++ b/sound/pci/ctxfi/cthardware.c
@@ -0,0 +1,91 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	cthardware.c
+ *
+ * @Brief
+ * This file contains the implementation of hardware access methord.
+ *
+ * @Author	Liu Chun
+ * @Date 	Jun 26 2008
+ *
+ */
+
+#include "cthardware.h"
+#include "cthw20k1.h"
+#include "cthw20k2.h"
+#include <linux/bug.h>
+
+int __devinit create_hw_obj(struct pci_dev *pci, enum CHIPTYP chip_type,
+			    enum CTCARDS model, struct hw **rhw)
+{
+	int err;
+
+	switch (chip_type) {
+	case ATC20K1:
+		err = create_20k1_hw_obj(rhw);
+		break;
+	case ATC20K2:
+		err = create_20k2_hw_obj(rhw);
+		break;
+	default:
+		err = -ENODEV;
+		break;
+	}
+	if (err)
+		return err;
+
+	(*rhw)->pci = pci;
+	(*rhw)->chip_type = chip_type;
+	(*rhw)->model = model;
+
+	return 0;
+}
+
+int destroy_hw_obj(struct hw *hw)
+{
+	int err;
+
+	switch (hw->pci->device) {
+	case 0x0005:	/* 20k1 device */
+		err = destroy_20k1_hw_obj(hw);
+		break;
+	case 0x000B:	/* 20k2 device */
+		err = destroy_20k2_hw_obj(hw);
+		break;
+	default:
+		err = -ENODEV;
+		break;
+	}
+
+	return err;
+}
+
+unsigned int get_field(unsigned int data, unsigned int field)
+{
+	int i;
+
+	BUG_ON(!field);
+	/* @field should always be greater than 0 */
+	for (i = 0; !(field & (1 << i)); )
+		i++;
+
+	return (data & field) >> i;
+}
+
+void set_field(unsigned int *data, unsigned int field, unsigned int value)
+{
+	int i;
+
+	BUG_ON(!field);
+	/* @field should always be greater than 0 */
+	for (i = 0; !(field & (1 << i)); )
+		i++;
+
+	*data = (*data & (~field)) | ((value << i) & field);
+}
+
diff --git a/sound/pci/ctxfi/cthardware.h b/sound/pci/ctxfi/cthardware.h
new file mode 100644
index 000000000000..4a8e04f090a4
--- /dev/null
+++ b/sound/pci/ctxfi/cthardware.h
@@ -0,0 +1,196 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	cthardware.h
+ *
+ * @Brief
+ * This file contains the definition of hardware access methord.
+ *
+ * @Author	Liu Chun
+ * @Date 	May 13 2008
+ *
+ */
+
+#ifndef CTHARDWARE_H
+#define CTHARDWARE_H
+
+#include <linux/types.h>
+#include <linux/pci.h>
+
+enum CHIPTYP {
+	ATC20K1,
+	ATC20K2,
+	ATCNONE
+};
+
+enum CTCARDS {
+	/* 20k1 models */
+	CTSB055X,
+	CTSB073X,
+	CTUAA,
+	CT20K1_UNKNOWN,
+	/* 20k2 models */
+	CTSB0760,
+	CTHENDRIX,
+	CTSB0880,
+	NUM_CTCARDS		/* This should always be the last */
+};
+
+/* Type of input source for ADC */
+enum ADCSRC{
+	ADC_MICIN,
+	ADC_LINEIN,
+	ADC_VIDEO,
+	ADC_AUX,
+	ADC_NONE	/* Switch to digital input */
+};
+
+struct card_conf {
+	/* device virtual mem page table page physical addr
+	 * (supporting one page table page now) */
+	unsigned long vm_pgt_phys;
+	unsigned int rsr;	/* reference sample rate in Hzs*/
+	unsigned int msr;	/* master sample rate in rsrs */
+};
+
+struct hw {
+	int (*card_init)(struct hw *hw, struct card_conf *info);
+	int (*card_stop)(struct hw *hw);
+	int (*pll_init)(struct hw *hw, unsigned int rsr);
+	int (*is_adc_source_selected)(struct hw *hw, enum ADCSRC source);
+	int (*select_adc_source)(struct hw *hw, enum ADCSRC source);
+	int (*have_digit_io_switch)(struct hw *hw);
+
+	/* SRC operations */
+	int (*src_rsc_get_ctrl_blk)(void **rblk);
+	int (*src_rsc_put_ctrl_blk)(void *blk);
+	int (*src_set_state)(void *blk, unsigned int state);
+	int (*src_set_bm)(void *blk, unsigned int bm);
+	int (*src_set_rsr)(void *blk, unsigned int rsr);
+	int (*src_set_sf)(void *blk, unsigned int sf);
+	int (*src_set_wr)(void *blk, unsigned int wr);
+	int (*src_set_pm)(void *blk, unsigned int pm);
+	int (*src_set_rom)(void *blk, unsigned int rom);
+	int (*src_set_vo)(void *blk, unsigned int vo);
+	int (*src_set_st)(void *blk, unsigned int st);
+	int (*src_set_ie)(void *blk, unsigned int ie);
+	int (*src_set_ilsz)(void *blk, unsigned int ilsz);
+	int (*src_set_bp)(void *blk, unsigned int bp);
+	int (*src_set_cisz)(void *blk, unsigned int cisz);
+	int (*src_set_ca)(void *blk, unsigned int ca);
+	int (*src_set_sa)(void *blk, unsigned int sa);
+	int (*src_set_la)(void *blk, unsigned int la);
+	int (*src_set_pitch)(void *blk, unsigned int pitch);
+	int (*src_set_clear_zbufs)(void *blk, unsigned int clear);
+	int (*src_set_dirty)(void *blk, unsigned int flags);
+	int (*src_set_dirty_all)(void *blk);
+	int (*src_commit_write)(struct hw *hw, unsigned int idx, void *blk);
+	int (*src_get_ca)(struct hw *hw, unsigned int idx, void *blk);
+	unsigned int (*src_get_dirty)(void *blk);
+	unsigned int (*src_dirty_conj_mask)(void);
+	int (*src_mgr_get_ctrl_blk)(void **rblk);
+	int (*src_mgr_put_ctrl_blk)(void *blk);
+	/* syncly enable src @idx */
+	int (*src_mgr_enbs_src)(void *blk, unsigned int idx);
+	/* enable src @idx */
+	int (*src_mgr_enb_src)(void *blk, unsigned int idx);
+	/* disable src @idx */
+	int (*src_mgr_dsb_src)(void *blk, unsigned int idx);
+	int (*src_mgr_commit_write)(struct hw *hw, void *blk);
+
+	/* SRC Input Mapper operations */
+	int (*srcimp_mgr_get_ctrl_blk)(void **rblk);
+	int (*srcimp_mgr_put_ctrl_blk)(void *blk);
+	int (*srcimp_mgr_set_imaparc)(void *blk, unsigned int slot);
+	int (*srcimp_mgr_set_imapuser)(void *blk, unsigned int user);
+	int (*srcimp_mgr_set_imapnxt)(void *blk, unsigned int next);
+	int (*srcimp_mgr_set_imapaddr)(void *blk, unsigned int addr);
+	int (*srcimp_mgr_commit_write)(struct hw *hw, void *blk);
+
+	/* AMIXER operations */
+	int (*amixer_rsc_get_ctrl_blk)(void **rblk);
+	int (*amixer_rsc_put_ctrl_blk)(void *blk);
+	int (*amixer_mgr_get_ctrl_blk)(void **rblk);
+	int (*amixer_mgr_put_ctrl_blk)(void *blk);
+	int (*amixer_set_mode)(void *blk, unsigned int mode);
+	int (*amixer_set_iv)(void *blk, unsigned int iv);
+	int (*amixer_set_x)(void *blk, unsigned int x);
+	int (*amixer_set_y)(void *blk, unsigned int y);
+	int (*amixer_set_sadr)(void *blk, unsigned int sadr);
+	int (*amixer_set_se)(void *blk, unsigned int se);
+	int (*amixer_set_dirty)(void *blk, unsigned int flags);
+	int (*amixer_set_dirty_all)(void *blk);
+	int (*amixer_commit_write)(struct hw *hw, unsigned int idx, void *blk);
+	int (*amixer_get_y)(void *blk);
+	unsigned int (*amixer_get_dirty)(void *blk);
+
+	/* DAIO operations */
+	int (*dai_get_ctrl_blk)(void **rblk);
+	int (*dai_put_ctrl_blk)(void *blk);
+	int (*dai_srt_set_srco)(void *blk, unsigned int src);
+	int (*dai_srt_set_srcm)(void *blk, unsigned int src);
+	int (*dai_srt_set_rsr)(void *blk, unsigned int rsr);
+	int (*dai_srt_set_drat)(void *blk, unsigned int drat);
+	int (*dai_srt_set_ec)(void *blk, unsigned int ec);
+	int (*dai_srt_set_et)(void *blk, unsigned int et);
+	int (*dai_commit_write)(struct hw *hw, unsigned int idx, void *blk);
+	int (*dao_get_ctrl_blk)(void **rblk);
+	int (*dao_put_ctrl_blk)(void *blk);
+	int (*dao_set_spos)(void *blk, unsigned int spos);
+	int (*dao_commit_write)(struct hw *hw, unsigned int idx, void *blk);
+	int (*dao_get_spos)(void *blk, unsigned int *spos);
+
+	int (*daio_mgr_get_ctrl_blk)(struct hw *hw, void **rblk);
+	int (*daio_mgr_put_ctrl_blk)(void *blk);
+	int (*daio_mgr_enb_dai)(void *blk, unsigned int idx);
+	int (*daio_mgr_dsb_dai)(void *blk, unsigned int idx);
+	int (*daio_mgr_enb_dao)(void *blk, unsigned int idx);
+	int (*daio_mgr_dsb_dao)(void *blk, unsigned int idx);
+	int (*daio_mgr_dao_init)(void *blk, unsigned int idx,
+						unsigned int conf);
+	int (*daio_mgr_set_imaparc)(void *blk, unsigned int slot);
+	int (*daio_mgr_set_imapnxt)(void *blk, unsigned int next);
+	int (*daio_mgr_set_imapaddr)(void *blk, unsigned int addr);
+	int (*daio_mgr_commit_write)(struct hw *hw, void *blk);
+
+	int (*set_timer_irq)(struct hw *hw, int enable);
+	int (*set_timer_tick)(struct hw *hw, unsigned int tick);
+	unsigned int (*get_wc)(struct hw *hw);
+
+	void (*irq_callback)(void *data, unsigned int bit);
+	void *irq_callback_data;
+
+	struct pci_dev *pci;	/* the pci kernel structure of this card */
+	int irq;
+	unsigned long io_base;
+	unsigned long mem_base;
+
+	enum CHIPTYP chip_type;
+	enum CTCARDS model;
+};
+
+int create_hw_obj(struct pci_dev *pci, enum CHIPTYP chip_type,
+		  enum CTCARDS model, struct hw **rhw);
+int destroy_hw_obj(struct hw *hw);
+
+unsigned int get_field(unsigned int data, unsigned int field);
+void set_field(unsigned int *data, unsigned int field, unsigned int value);
+
+/* IRQ bits */
+#define	PLL_INT		(1 << 10) /* PLL input-clock out-of-range */
+#define FI_INT		(1 << 9)  /* forced interrupt */
+#define IT_INT		(1 << 8)  /* timer interrupt */
+#define PCI_INT		(1 << 7)  /* PCI bus error pending */
+#define URT_INT		(1 << 6)  /* UART Tx/Rx */
+#define GPI_INT		(1 << 5)  /* GPI pin */
+#define MIX_INT		(1 << 4)  /* mixer parameter segment FIFO channels */
+#define DAI_INT		(1 << 3)  /* DAI (SR-tracker or SPDIF-receiver) */
+#define TP_INT		(1 << 2)  /* transport priority queue */
+#define DSP_INT		(1 << 1)  /* DSP */
+#define SRC_INT		(1 << 0)  /* SRC channels */
+
+#endif /* CTHARDWARE_H */
diff --git a/sound/pci/ctxfi/cthw20k1.c b/sound/pci/ctxfi/cthw20k1.c
new file mode 100644
index 000000000000..cb69d9ddfbe3
--- /dev/null
+++ b/sound/pci/ctxfi/cthw20k1.c
@@ -0,0 +1,2248 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	cthw20k1.c
+ *
+ * @Brief
+ * This file contains the implementation of hardware access methord for 20k1.
+ *
+ * @Author	Liu Chun
+ * @Date 	Jun 24 2008
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/io.h>
+#include <linux/string.h>
+#include <linux/spinlock.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include "cthw20k1.h"
+#include "ct20k1reg.h"
+
+#if BITS_PER_LONG == 32
+#define CT_XFI_DMA_MASK		DMA_BIT_MASK(32) /* 32 bit PTE */
+#else
+#define CT_XFI_DMA_MASK		DMA_BIT_MASK(64) /* 64 bit PTE */
+#endif
+
+struct hw20k1 {
+	struct hw hw;
+	spinlock_t reg_20k1_lock;
+	spinlock_t reg_pci_lock;
+};
+
+static u32 hw_read_20kx(struct hw *hw, u32 reg);
+static void hw_write_20kx(struct hw *hw, u32 reg, u32 data);
+static u32 hw_read_pci(struct hw *hw, u32 reg);
+static void hw_write_pci(struct hw *hw, u32 reg, u32 data);
+
+/*
+ * Type definition block.
+ * The layout of control structures can be directly applied on 20k2 chip.
+ */
+
+/*
+ * SRC control block definitions.
+ */
+
+/* SRC resource control block */
+#define SRCCTL_STATE	0x00000007
+#define SRCCTL_BM	0x00000008
+#define SRCCTL_RSR	0x00000030
+#define SRCCTL_SF	0x000001C0
+#define SRCCTL_WR	0x00000200
+#define SRCCTL_PM	0x00000400
+#define SRCCTL_ROM	0x00001800
+#define SRCCTL_VO	0x00002000
+#define SRCCTL_ST	0x00004000
+#define SRCCTL_IE	0x00008000
+#define SRCCTL_ILSZ	0x000F0000
+#define SRCCTL_BP	0x00100000
+
+#define SRCCCR_CISZ	0x000007FF
+#define SRCCCR_CWA	0x001FF800
+#define SRCCCR_D	0x00200000
+#define SRCCCR_RS	0x01C00000
+#define SRCCCR_NAL	0x3E000000
+#define SRCCCR_RA	0xC0000000
+
+#define SRCCA_CA	0x03FFFFFF
+#define SRCCA_RS	0x1C000000
+#define SRCCA_NAL	0xE0000000
+
+#define SRCSA_SA	0x03FFFFFF
+
+#define SRCLA_LA	0x03FFFFFF
+
+/* Mixer Parameter Ring ram Low and Hight register.
+ * Fixed-point value in 8.24 format for parameter channel */
+#define MPRLH_PITCH	0xFFFFFFFF
+
+/* SRC resource register dirty flags */
+union src_dirty {
+	struct {
+		u16 ctl:1;
+		u16 ccr:1;
+		u16 sa:1;
+		u16 la:1;
+		u16 ca:1;
+		u16 mpr:1;
+		u16 czbfs:1;	/* Clear Z-Buffers */
+		u16 rsv:9;
+	} bf;
+	u16 data;
+};
+
+struct src_rsc_ctrl_blk {
+	unsigned int	ctl;
+	unsigned int 	ccr;
+	unsigned int	ca;
+	unsigned int	sa;
+	unsigned int	la;
+	unsigned int	mpr;
+	union src_dirty	dirty;
+};
+
+/* SRC manager control block */
+union src_mgr_dirty {
+	struct {
+		u16 enb0:1;
+		u16 enb1:1;
+		u16 enb2:1;
+		u16 enb3:1;
+		u16 enb4:1;
+		u16 enb5:1;
+		u16 enb6:1;
+		u16 enb7:1;
+		u16 enbsa:1;
+		u16 rsv:7;
+	} bf;
+	u16 data;
+};
+
+struct src_mgr_ctrl_blk {
+	unsigned int		enbsa;
+	unsigned int		enb[8];
+	union src_mgr_dirty	dirty;
+};
+
+/* SRCIMP manager control block */
+#define SRCAIM_ARC	0x00000FFF
+#define SRCAIM_NXT	0x00FF0000
+#define SRCAIM_SRC	0xFF000000
+
+struct srcimap {
+	unsigned int srcaim;
+	unsigned int idx;
+};
+
+/* SRCIMP manager register dirty flags */
+union srcimp_mgr_dirty {
+	struct {
+		u16 srcimap:1;
+		u16 rsv:15;
+	} bf;
+	u16 data;
+};
+
+struct srcimp_mgr_ctrl_blk {
+	struct srcimap		srcimap;
+	union srcimp_mgr_dirty	dirty;
+};
+
+/*
+ * Function implementation block.
+ */
+
+static int src_get_rsc_ctrl_blk(void **rblk)
+{
+	struct src_rsc_ctrl_blk *blk;
+
+	*rblk = NULL;
+	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+	if (NULL == blk)
+		return -ENOMEM;
+
+	*rblk = blk;
+
+	return 0;
+}
+
+static int src_put_rsc_ctrl_blk(void *blk)
+{
+	kfree((struct src_rsc_ctrl_blk *)blk);
+
+	return 0;
+}
+
+static int src_set_state(void *blk, unsigned int state)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_STATE, state);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_bm(void *blk, unsigned int bm)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_BM, bm);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_rsr(void *blk, unsigned int rsr)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_RSR, rsr);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_sf(void *blk, unsigned int sf)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_SF, sf);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_wr(void *blk, unsigned int wr)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_WR, wr);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_pm(void *blk, unsigned int pm)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_PM, pm);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_rom(void *blk, unsigned int rom)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_ROM, rom);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_vo(void *blk, unsigned int vo)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_VO, vo);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_st(void *blk, unsigned int st)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_ST, st);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_ie(void *blk, unsigned int ie)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_IE, ie);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_ilsz(void *blk, unsigned int ilsz)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_ILSZ, ilsz);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_bp(void *blk, unsigned int bp)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_BP, bp);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_cisz(void *blk, unsigned int cisz)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ccr, SRCCCR_CISZ, cisz);
+	ctl->dirty.bf.ccr = 1;
+	return 0;
+}
+
+static int src_set_ca(void *blk, unsigned int ca)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ca, SRCCA_CA, ca);
+	ctl->dirty.bf.ca = 1;
+	return 0;
+}
+
+static int src_set_sa(void *blk, unsigned int sa)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->sa, SRCSA_SA, sa);
+	ctl->dirty.bf.sa = 1;
+	return 0;
+}
+
+static int src_set_la(void *blk, unsigned int la)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->la, SRCLA_LA, la);
+	ctl->dirty.bf.la = 1;
+	return 0;
+}
+
+static int src_set_pitch(void *blk, unsigned int pitch)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->mpr, MPRLH_PITCH, pitch);
+	ctl->dirty.bf.mpr = 1;
+	return 0;
+}
+
+static int src_set_clear_zbufs(void *blk, unsigned int clear)
+{
+	((struct src_rsc_ctrl_blk *)blk)->dirty.bf.czbfs = (clear ? 1 : 0);
+	return 0;
+}
+
+static int src_set_dirty(void *blk, unsigned int flags)
+{
+	((struct src_rsc_ctrl_blk *)blk)->dirty.data = (flags & 0xffff);
+	return 0;
+}
+
+static int src_set_dirty_all(void *blk)
+{
+	((struct src_rsc_ctrl_blk *)blk)->dirty.data = ~(0x0);
+	return 0;
+}
+
+#define AR_SLOT_SIZE		4096
+#define AR_SLOT_BLOCK_SIZE	16
+#define AR_PTS_PITCH		6
+#define AR_PARAM_SRC_OFFSET	0x60
+
+static unsigned int src_param_pitch_mixer(unsigned int src_idx)
+{
+	return ((src_idx << 4) + AR_PTS_PITCH + AR_SLOT_SIZE
+			- AR_PARAM_SRC_OFFSET) % AR_SLOT_SIZE;
+
+}
+
+static int src_commit_write(struct hw *hw, unsigned int idx, void *blk)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+	int i;
+
+	if (ctl->dirty.bf.czbfs) {
+		/* Clear Z-Buffer registers */
+		for (i = 0; i < 8; i++)
+			hw_write_20kx(hw, SRCUPZ+idx*0x100+i*0x4, 0);
+
+		for (i = 0; i < 4; i++)
+			hw_write_20kx(hw, SRCDN0Z+idx*0x100+i*0x4, 0);
+
+		for (i = 0; i < 8; i++)
+			hw_write_20kx(hw, SRCDN1Z+idx*0x100+i*0x4, 0);
+
+		ctl->dirty.bf.czbfs = 0;
+	}
+	if (ctl->dirty.bf.mpr) {
+		/* Take the parameter mixer resource in the same group as that
+		 * the idx src is in for simplicity. Unlike src, all conjugate
+		 * parameter mixer resources must be programmed for
+		 * corresponding conjugate src resources. */
+		unsigned int pm_idx = src_param_pitch_mixer(idx);
+		hw_write_20kx(hw, PRING_LO_HI+4*pm_idx, ctl->mpr);
+		hw_write_20kx(hw, PMOPLO+8*pm_idx, 0x3);
+		hw_write_20kx(hw, PMOPHI+8*pm_idx, 0x0);
+		ctl->dirty.bf.mpr = 0;
+	}
+	if (ctl->dirty.bf.sa) {
+		hw_write_20kx(hw, SRCSA+idx*0x100, ctl->sa);
+		ctl->dirty.bf.sa = 0;
+	}
+	if (ctl->dirty.bf.la) {
+		hw_write_20kx(hw, SRCLA+idx*0x100, ctl->la);
+		ctl->dirty.bf.la = 0;
+	}
+	if (ctl->dirty.bf.ca) {
+		hw_write_20kx(hw, SRCCA+idx*0x100, ctl->ca);
+		ctl->dirty.bf.ca = 0;
+	}
+
+	/* Write srccf register */
+	hw_write_20kx(hw, SRCCF+idx*0x100, 0x0);
+
+	if (ctl->dirty.bf.ccr) {
+		hw_write_20kx(hw, SRCCCR+idx*0x100, ctl->ccr);
+		ctl->dirty.bf.ccr = 0;
+	}
+	if (ctl->dirty.bf.ctl) {
+		hw_write_20kx(hw, SRCCTL+idx*0x100, ctl->ctl);
+		ctl->dirty.bf.ctl = 0;
+	}
+
+	return 0;
+}
+
+static int src_get_ca(struct hw *hw, unsigned int idx, void *blk)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	ctl->ca = hw_read_20kx(hw, SRCCA+idx*0x100);
+	ctl->dirty.bf.ca = 0;
+
+	return get_field(ctl->ca, SRCCA_CA);
+}
+
+static unsigned int src_get_dirty(void *blk)
+{
+	return ((struct src_rsc_ctrl_blk *)blk)->dirty.data;
+}
+
+static unsigned int src_dirty_conj_mask(void)
+{
+	return 0x20;
+}
+
+static int src_mgr_enbs_src(void *blk, unsigned int idx)
+{
+	((struct src_mgr_ctrl_blk *)blk)->enbsa = ~(0x0);
+	((struct src_mgr_ctrl_blk *)blk)->dirty.bf.enbsa = 1;
+	((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] |= (0x1 << (idx%32));
+	return 0;
+}
+
+static int src_mgr_enb_src(void *blk, unsigned int idx)
+{
+	((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] |= (0x1 << (idx%32));
+	((struct src_mgr_ctrl_blk *)blk)->dirty.data |= (0x1 << (idx/32));
+	return 0;
+}
+
+static int src_mgr_dsb_src(void *blk, unsigned int idx)
+{
+	((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] &= ~(0x1 << (idx%32));
+	((struct src_mgr_ctrl_blk *)blk)->dirty.data |= (0x1 << (idx/32));
+	return 0;
+}
+
+static int src_mgr_commit_write(struct hw *hw, void *blk)
+{
+	struct src_mgr_ctrl_blk *ctl = blk;
+	int i;
+	unsigned int ret;
+
+	if (ctl->dirty.bf.enbsa) {
+		do {
+			ret = hw_read_20kx(hw, SRCENBSTAT);
+		} while (ret & 0x1);
+		hw_write_20kx(hw, SRCENBS, ctl->enbsa);
+		ctl->dirty.bf.enbsa = 0;
+	}
+	for (i = 0; i < 8; i++) {
+		if ((ctl->dirty.data & (0x1 << i))) {
+			hw_write_20kx(hw, SRCENB+(i*0x100), ctl->enb[i]);
+			ctl->dirty.data &= ~(0x1 << i);
+		}
+	}
+
+	return 0;
+}
+
+static int src_mgr_get_ctrl_blk(void **rblk)
+{
+	struct src_mgr_ctrl_blk *blk;
+
+	*rblk = NULL;
+	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+	if (NULL == blk)
+		return -ENOMEM;
+
+	*rblk = blk;
+
+	return 0;
+}
+
+static int src_mgr_put_ctrl_blk(void *blk)
+{
+	kfree((struct src_mgr_ctrl_blk *)blk);
+
+	return 0;
+}
+
+static int srcimp_mgr_get_ctrl_blk(void **rblk)
+{
+	struct srcimp_mgr_ctrl_blk *blk;
+
+	*rblk = NULL;
+	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+	if (NULL == blk)
+		return -ENOMEM;
+
+	*rblk = blk;
+
+	return 0;
+}
+
+static int srcimp_mgr_put_ctrl_blk(void *blk)
+{
+	kfree((struct srcimp_mgr_ctrl_blk *)blk);
+
+	return 0;
+}
+
+static int srcimp_mgr_set_imaparc(void *blk, unsigned int slot)
+{
+	struct srcimp_mgr_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srcimap.srcaim, SRCAIM_ARC, slot);
+	ctl->dirty.bf.srcimap = 1;
+	return 0;
+}
+
+static int srcimp_mgr_set_imapuser(void *blk, unsigned int user)
+{
+	struct srcimp_mgr_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srcimap.srcaim, SRCAIM_SRC, user);
+	ctl->dirty.bf.srcimap = 1;
+	return 0;
+}
+
+static int srcimp_mgr_set_imapnxt(void *blk, unsigned int next)
+{
+	struct srcimp_mgr_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srcimap.srcaim, SRCAIM_NXT, next);
+	ctl->dirty.bf.srcimap = 1;
+	return 0;
+}
+
+static int srcimp_mgr_set_imapaddr(void *blk, unsigned int addr)
+{
+	struct srcimp_mgr_ctrl_blk *ctl = blk;
+
+	ctl->srcimap.idx = addr;
+	ctl->dirty.bf.srcimap = 1;
+	return 0;
+}
+
+static int srcimp_mgr_commit_write(struct hw *hw, void *blk)
+{
+	struct srcimp_mgr_ctrl_blk *ctl = blk;
+
+	if (ctl->dirty.bf.srcimap) {
+		hw_write_20kx(hw, SRCIMAP+ctl->srcimap.idx*0x100,
+						ctl->srcimap.srcaim);
+		ctl->dirty.bf.srcimap = 0;
+	}
+
+	return 0;
+}
+
+/*
+ * AMIXER control block definitions.
+ */
+
+#define AMOPLO_M	0x00000003
+#define AMOPLO_X	0x0003FFF0
+#define AMOPLO_Y	0xFFFC0000
+
+#define AMOPHI_SADR	0x000000FF
+#define AMOPHI_SE	0x80000000
+
+/* AMIXER resource register dirty flags */
+union amixer_dirty {
+	struct {
+		u16 amoplo:1;
+		u16 amophi:1;
+		u16 rsv:14;
+	} bf;
+	u16 data;
+};
+
+/* AMIXER resource control block */
+struct amixer_rsc_ctrl_blk {
+	unsigned int		amoplo;
+	unsigned int		amophi;
+	union amixer_dirty	dirty;
+};
+
+static int amixer_set_mode(void *blk, unsigned int mode)
+{
+	struct amixer_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->amoplo, AMOPLO_M, mode);
+	ctl->dirty.bf.amoplo = 1;
+	return 0;
+}
+
+static int amixer_set_iv(void *blk, unsigned int iv)
+{
+	/* 20k1 amixer does not have this field */
+	return 0;
+}
+
+static int amixer_set_x(void *blk, unsigned int x)
+{
+	struct amixer_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->amoplo, AMOPLO_X, x);
+	ctl->dirty.bf.amoplo = 1;
+	return 0;
+}
+
+static int amixer_set_y(void *blk, unsigned int y)
+{
+	struct amixer_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->amoplo, AMOPLO_Y, y);
+	ctl->dirty.bf.amoplo = 1;
+	return 0;
+}
+
+static int amixer_set_sadr(void *blk, unsigned int sadr)
+{
+	struct amixer_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->amophi, AMOPHI_SADR, sadr);
+	ctl->dirty.bf.amophi = 1;
+	return 0;
+}
+
+static int amixer_set_se(void *blk, unsigned int se)
+{
+	struct amixer_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->amophi, AMOPHI_SE, se);
+	ctl->dirty.bf.amophi = 1;
+	return 0;
+}
+
+static int amixer_set_dirty(void *blk, unsigned int flags)
+{
+	((struct amixer_rsc_ctrl_blk *)blk)->dirty.data = (flags & 0xffff);
+	return 0;
+}
+
+static int amixer_set_dirty_all(void *blk)
+{
+	((struct amixer_rsc_ctrl_blk *)blk)->dirty.data = ~(0x0);
+	return 0;
+}
+
+static int amixer_commit_write(struct hw *hw, unsigned int idx, void *blk)
+{
+	struct amixer_rsc_ctrl_blk *ctl = blk;
+
+	if (ctl->dirty.bf.amoplo || ctl->dirty.bf.amophi) {
+		hw_write_20kx(hw, AMOPLO+idx*8, ctl->amoplo);
+		ctl->dirty.bf.amoplo = 0;
+		hw_write_20kx(hw, AMOPHI+idx*8, ctl->amophi);
+		ctl->dirty.bf.amophi = 0;
+	}
+
+	return 0;
+}
+
+static int amixer_get_y(void *blk)
+{
+	struct amixer_rsc_ctrl_blk *ctl = blk;
+
+	return get_field(ctl->amoplo, AMOPLO_Y);
+}
+
+static unsigned int amixer_get_dirty(void *blk)
+{
+	return ((struct amixer_rsc_ctrl_blk *)blk)->dirty.data;
+}
+
+static int amixer_rsc_get_ctrl_blk(void **rblk)
+{
+	struct amixer_rsc_ctrl_blk *blk;
+
+	*rblk = NULL;
+	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+	if (NULL == blk)
+		return -ENOMEM;
+
+	*rblk = blk;
+
+	return 0;
+}
+
+static int amixer_rsc_put_ctrl_blk(void *blk)
+{
+	kfree((struct amixer_rsc_ctrl_blk *)blk);
+
+	return 0;
+}
+
+static int amixer_mgr_get_ctrl_blk(void **rblk)
+{
+	/*amixer_mgr_ctrl_blk_t *blk;*/
+
+	*rblk = NULL;
+	/*blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+	if (NULL == blk)
+		return -ENOMEM;
+
+	*rblk = blk;*/
+
+	return 0;
+}
+
+static int amixer_mgr_put_ctrl_blk(void *blk)
+{
+	/*kfree((amixer_mgr_ctrl_blk_t *)blk);*/
+
+	return 0;
+}
+
+/*
+ * DAIO control block definitions.
+ */
+
+/* Receiver Sample Rate Tracker Control register */
+#define SRTCTL_SRCR	0x000000FF
+#define SRTCTL_SRCL	0x0000FF00
+#define SRTCTL_RSR	0x00030000
+#define SRTCTL_DRAT	0x000C0000
+#define SRTCTL_RLE	0x10000000
+#define SRTCTL_RLP	0x20000000
+#define SRTCTL_EC	0x40000000
+#define SRTCTL_ET	0x80000000
+
+/* DAIO Receiver register dirty flags */
+union dai_dirty {
+	struct {
+		u16 srtctl:1;
+		u16 rsv:15;
+	} bf;
+	u16 data;
+};
+
+/* DAIO Receiver control block */
+struct dai_ctrl_blk {
+	unsigned int	srtctl;
+	union dai_dirty	dirty;
+};
+
+/* S/PDIF Transmitter register dirty flags */
+union dao_dirty {
+	struct {
+		u16 spos:1;
+		u16 rsv:15;
+	} bf;
+	u16 data;
+};
+
+/* S/PDIF Transmitter control block */
+struct dao_ctrl_blk {
+	unsigned int 	spos; /* S/PDIF Output Channel Status Register */
+	union dao_dirty	dirty;
+};
+
+/* Audio Input Mapper RAM */
+#define AIM_ARC		0x00000FFF
+#define AIM_NXT		0x007F0000
+
+struct daoimap {
+	unsigned int aim;
+	unsigned int idx;
+};
+
+/* I2S Transmitter/Receiver Control register */
+#define I2SCTL_EA	0x00000004
+#define I2SCTL_EI	0x00000010
+
+/* S/PDIF Transmitter Control register */
+#define SPOCTL_OE	0x00000001
+#define SPOCTL_OS	0x0000000E
+#define SPOCTL_RIV	0x00000010
+#define SPOCTL_LIV	0x00000020
+#define SPOCTL_SR	0x000000C0
+
+/* S/PDIF Receiver Control register */
+#define SPICTL_EN	0x00000001
+#define SPICTL_I24	0x00000002
+#define SPICTL_IB	0x00000004
+#define SPICTL_SM	0x00000008
+#define SPICTL_VM	0x00000010
+
+/* DAIO manager register dirty flags */
+union daio_mgr_dirty {
+	struct {
+		u32 i2soctl:4;
+		u32 i2sictl:4;
+		u32 spoctl:4;
+		u32 spictl:4;
+		u32 daoimap:1;
+		u32 rsv:15;
+	} bf;
+	u32 data;
+};
+
+/* DAIO manager control block */
+struct daio_mgr_ctrl_blk {
+	unsigned int		i2sctl;
+	unsigned int		spoctl;
+	unsigned int		spictl;
+	struct daoimap		daoimap;
+	union daio_mgr_dirty	dirty;
+};
+
+static int dai_srt_set_srcr(void *blk, unsigned int src)
+{
+	struct dai_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srtctl, SRTCTL_SRCR, src);
+	ctl->dirty.bf.srtctl = 1;
+	return 0;
+}
+
+static int dai_srt_set_srcl(void *blk, unsigned int src)
+{
+	struct dai_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srtctl, SRTCTL_SRCL, src);
+	ctl->dirty.bf.srtctl = 1;
+	return 0;
+}
+
+static int dai_srt_set_rsr(void *blk, unsigned int rsr)
+{
+	struct dai_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srtctl, SRTCTL_RSR, rsr);
+	ctl->dirty.bf.srtctl = 1;
+	return 0;
+}
+
+static int dai_srt_set_drat(void *blk, unsigned int drat)
+{
+	struct dai_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srtctl, SRTCTL_DRAT, drat);
+	ctl->dirty.bf.srtctl = 1;
+	return 0;
+}
+
+static int dai_srt_set_ec(void *blk, unsigned int ec)
+{
+	struct dai_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srtctl, SRTCTL_EC, ec ? 1 : 0);
+	ctl->dirty.bf.srtctl = 1;
+	return 0;
+}
+
+static int dai_srt_set_et(void *blk, unsigned int et)
+{
+	struct dai_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srtctl, SRTCTL_ET, et ? 1 : 0);
+	ctl->dirty.bf.srtctl = 1;
+	return 0;
+}
+
+static int dai_commit_write(struct hw *hw, unsigned int idx, void *blk)
+{
+	struct dai_ctrl_blk *ctl = blk;
+
+	if (ctl->dirty.bf.srtctl) {
+		if (idx < 4) {
+			/* S/PDIF SRTs */
+			hw_write_20kx(hw, SRTSCTL+0x4*idx, ctl->srtctl);
+		} else {
+			/* I2S SRT */
+			hw_write_20kx(hw, SRTICTL, ctl->srtctl);
+		}
+		ctl->dirty.bf.srtctl = 0;
+	}
+
+	return 0;
+}
+
+static int dai_get_ctrl_blk(void **rblk)
+{
+	struct dai_ctrl_blk *blk;
+
+	*rblk = NULL;
+	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+	if (NULL == blk)
+		return -ENOMEM;
+
+	*rblk = blk;
+
+	return 0;
+}
+
+static int dai_put_ctrl_blk(void *blk)
+{
+	kfree((struct dai_ctrl_blk *)blk);
+
+	return 0;
+}
+
+static int dao_set_spos(void *blk, unsigned int spos)
+{
+	((struct dao_ctrl_blk *)blk)->spos = spos;
+	((struct dao_ctrl_blk *)blk)->dirty.bf.spos = 1;
+	return 0;
+}
+
+static int dao_commit_write(struct hw *hw, unsigned int idx, void *blk)
+{
+	struct dao_ctrl_blk *ctl = blk;
+
+	if (ctl->dirty.bf.spos) {
+		if (idx < 4) {
+			/* S/PDIF SPOSx */
+			hw_write_20kx(hw, SPOS+0x4*idx, ctl->spos);
+		}
+		ctl->dirty.bf.spos = 0;
+	}
+
+	return 0;
+}
+
+static int dao_get_spos(void *blk, unsigned int *spos)
+{
+	*spos = ((struct dao_ctrl_blk *)blk)->spos;
+	return 0;
+}
+
+static int dao_get_ctrl_blk(void **rblk)
+{
+	struct dao_ctrl_blk *blk;
+
+	*rblk = NULL;
+	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+	if (NULL == blk)
+		return -ENOMEM;
+
+	*rblk = blk;
+
+	return 0;
+}
+
+static int dao_put_ctrl_blk(void *blk)
+{
+	kfree((struct dao_ctrl_blk *)blk);
+
+	return 0;
+}
+
+static int daio_mgr_enb_dai(void *blk, unsigned int idx)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+
+	if (idx < 4) {
+		/* S/PDIF input */
+		set_field(&ctl->spictl, SPICTL_EN << (idx*8), 1);
+		ctl->dirty.bf.spictl |= (0x1 << idx);
+	} else {
+		/* I2S input */
+		idx %= 4;
+		set_field(&ctl->i2sctl, I2SCTL_EI << (idx*8), 1);
+		ctl->dirty.bf.i2sictl |= (0x1 << idx);
+	}
+	return 0;
+}
+
+static int daio_mgr_dsb_dai(void *blk, unsigned int idx)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+
+	if (idx < 4) {
+		/* S/PDIF input */
+		set_field(&ctl->spictl, SPICTL_EN << (idx*8), 0);
+		ctl->dirty.bf.spictl |= (0x1 << idx);
+	} else {
+		/* I2S input */
+		idx %= 4;
+		set_field(&ctl->i2sctl, I2SCTL_EI << (idx*8), 0);
+		ctl->dirty.bf.i2sictl |= (0x1 << idx);
+	}
+	return 0;
+}
+
+static int daio_mgr_enb_dao(void *blk, unsigned int idx)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+
+	if (idx < 4) {
+		/* S/PDIF output */
+		set_field(&ctl->spoctl, SPOCTL_OE << (idx*8), 1);
+		ctl->dirty.bf.spoctl |= (0x1 << idx);
+	} else {
+		/* I2S output */
+		idx %= 4;
+		set_field(&ctl->i2sctl, I2SCTL_EA << (idx*8), 1);
+		ctl->dirty.bf.i2soctl |= (0x1 << idx);
+	}
+	return 0;
+}
+
+static int daio_mgr_dsb_dao(void *blk, unsigned int idx)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+
+	if (idx < 4) {
+		/* S/PDIF output */
+		set_field(&ctl->spoctl, SPOCTL_OE << (idx*8), 0);
+		ctl->dirty.bf.spoctl |= (0x1 << idx);
+	} else {
+		/* I2S output */
+		idx %= 4;
+		set_field(&ctl->i2sctl, I2SCTL_EA << (idx*8), 0);
+		ctl->dirty.bf.i2soctl |= (0x1 << idx);
+	}
+	return 0;
+}
+
+static int daio_mgr_dao_init(void *blk, unsigned int idx, unsigned int conf)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+
+	if (idx < 4) {
+		/* S/PDIF output */
+		switch ((conf & 0x7)) {
+		case 0:
+			set_field(&ctl->spoctl, SPOCTL_SR << (idx*8), 3);
+			break; /* CDIF */
+		case 1:
+			set_field(&ctl->spoctl, SPOCTL_SR << (idx*8), 0);
+			break;
+		case 2:
+			set_field(&ctl->spoctl, SPOCTL_SR << (idx*8), 1);
+			break;
+		case 4:
+			set_field(&ctl->spoctl, SPOCTL_SR << (idx*8), 2);
+			break;
+		default:
+			break;
+		}
+		set_field(&ctl->spoctl, SPOCTL_LIV << (idx*8),
+			  (conf >> 4) & 0x1); /* Non-audio */
+		set_field(&ctl->spoctl, SPOCTL_RIV << (idx*8),
+			  (conf >> 4) & 0x1); /* Non-audio */
+		set_field(&ctl->spoctl, SPOCTL_OS << (idx*8),
+			  ((conf >> 3) & 0x1) ? 2 : 2); /* Raw */
+
+		ctl->dirty.bf.spoctl |= (0x1 << idx);
+	} else {
+		/* I2S output */
+		/*idx %= 4; */
+	}
+	return 0;
+}
+
+static int daio_mgr_set_imaparc(void *blk, unsigned int slot)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->daoimap.aim, AIM_ARC, slot);
+	ctl->dirty.bf.daoimap = 1;
+	return 0;
+}
+
+static int daio_mgr_set_imapnxt(void *blk, unsigned int next)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->daoimap.aim, AIM_NXT, next);
+	ctl->dirty.bf.daoimap = 1;
+	return 0;
+}
+
+static int daio_mgr_set_imapaddr(void *blk, unsigned int addr)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+
+	ctl->daoimap.idx = addr;
+	ctl->dirty.bf.daoimap = 1;
+	return 0;
+}
+
+static int daio_mgr_commit_write(struct hw *hw, void *blk)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+	int i;
+
+	if (ctl->dirty.bf.i2sictl || ctl->dirty.bf.i2soctl) {
+		for (i = 0; i < 4; i++) {
+			if ((ctl->dirty.bf.i2sictl & (0x1 << i)))
+				ctl->dirty.bf.i2sictl &= ~(0x1 << i);
+
+			if ((ctl->dirty.bf.i2soctl & (0x1 << i)))
+				ctl->dirty.bf.i2soctl &= ~(0x1 << i);
+		}
+		hw_write_20kx(hw, I2SCTL, ctl->i2sctl);
+		mdelay(1);
+	}
+	if (ctl->dirty.bf.spoctl) {
+		for (i = 0; i < 4; i++) {
+			if ((ctl->dirty.bf.spoctl & (0x1 << i)))
+				ctl->dirty.bf.spoctl &= ~(0x1 << i);
+		}
+		hw_write_20kx(hw, SPOCTL, ctl->spoctl);
+		mdelay(1);
+	}
+	if (ctl->dirty.bf.spictl) {
+		for (i = 0; i < 4; i++) {
+			if ((ctl->dirty.bf.spictl & (0x1 << i)))
+				ctl->dirty.bf.spictl &= ~(0x1 << i);
+		}
+		hw_write_20kx(hw, SPICTL, ctl->spictl);
+		mdelay(1);
+	}
+	if (ctl->dirty.bf.daoimap) {
+		hw_write_20kx(hw, DAOIMAP+ctl->daoimap.idx*4,
+					ctl->daoimap.aim);
+		ctl->dirty.bf.daoimap = 0;
+	}
+
+	return 0;
+}
+
+static int daio_mgr_get_ctrl_blk(struct hw *hw, void **rblk)
+{
+	struct daio_mgr_ctrl_blk *blk;
+
+	*rblk = NULL;
+	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+	if (NULL == blk)
+		return -ENOMEM;
+
+	blk->i2sctl = hw_read_20kx(hw, I2SCTL);
+	blk->spoctl = hw_read_20kx(hw, SPOCTL);
+	blk->spictl = hw_read_20kx(hw, SPICTL);
+
+	*rblk = blk;
+
+	return 0;
+}
+
+static int daio_mgr_put_ctrl_blk(void *blk)
+{
+	kfree((struct daio_mgr_ctrl_blk *)blk);
+
+	return 0;
+}
+
+/* Timer interrupt */
+static int set_timer_irq(struct hw *hw, int enable)
+{
+	hw_write_20kx(hw, GIE, enable ? IT_INT : 0);
+	return 0;
+}
+
+static int set_timer_tick(struct hw *hw, unsigned int ticks)
+{
+	if (ticks)
+		ticks |= TIMR_IE | TIMR_IP;
+	hw_write_20kx(hw, TIMR, ticks);
+	return 0;
+}
+
+static unsigned int get_wc(struct hw *hw)
+{
+	return hw_read_20kx(hw, WC);
+}
+
+/* Card hardware initialization block */
+struct dac_conf {
+	unsigned int msr; /* master sample rate in rsrs */
+};
+
+struct adc_conf {
+	unsigned int msr; 	/* master sample rate in rsrs */
+	unsigned char input; 	/* the input source of ADC */
+	unsigned char mic20db; 	/* boost mic by 20db if input is microphone */
+};
+
+struct daio_conf {
+	unsigned int msr; /* master sample rate in rsrs */
+};
+
+struct trn_conf {
+	unsigned long vm_pgt_phys;
+};
+
+static int hw_daio_init(struct hw *hw, const struct daio_conf *info)
+{
+	u32 i2sorg;
+	u32 spdorg;
+
+	/* Read I2S CTL.  Keep original value. */
+	/*i2sorg = hw_read_20kx(hw, I2SCTL);*/
+	i2sorg = 0x94040404; /* enable all audio out and I2S-D input */
+	/* Program I2S with proper master sample rate and enable
+	 * the correct I2S channel. */
+	i2sorg &= 0xfffffffc;
+
+	/* Enable S/PDIF-out-A in fixed 24-bit data
+	 * format and default to 48kHz. */
+	/* Disable all before doing any changes. */
+	hw_write_20kx(hw, SPOCTL, 0x0);
+	spdorg = 0x05;
+
+	switch (info->msr) {
+	case 1:
+		i2sorg |= 1;
+		spdorg |= (0x0 << 6);
+		break;
+	case 2:
+		i2sorg |= 2;
+		spdorg |= (0x1 << 6);
+		break;
+	case 4:
+		i2sorg |= 3;
+		spdorg |= (0x2 << 6);
+		break;
+	default:
+		i2sorg |= 1;
+		break;
+	}
+
+	hw_write_20kx(hw, I2SCTL, i2sorg);
+	hw_write_20kx(hw, SPOCTL, spdorg);
+
+	/* Enable S/PDIF-in-A in fixed 24-bit data format. */
+	/* Disable all before doing any changes. */
+	hw_write_20kx(hw, SPICTL, 0x0);
+	mdelay(1);
+	spdorg = 0x0a0a0a0a;
+	hw_write_20kx(hw, SPICTL, spdorg);
+	mdelay(1);
+
+	return 0;
+}
+
+/* TRANSPORT operations */
+static int hw_trn_init(struct hw *hw, const struct trn_conf *info)
+{
+	u32 trnctl;
+	u32 ptp_phys_low, ptp_phys_high;
+
+	/* Set up device page table */
+	if ((~0UL) == info->vm_pgt_phys) {
+		printk(KERN_ERR "Wrong device page table page address!\n");
+		return -1;
+	}
+
+	trnctl = 0x13;  /* 32-bit, 4k-size page */
+	ptp_phys_low = (u32)info->vm_pgt_phys;
+	ptp_phys_high = upper_32_bits(info->vm_pgt_phys);
+	if (sizeof(void *) == 8) /* 64bit address */
+		trnctl |= (1 << 2);
+#if 0 /* Only 4k h/w pages for simplicitiy */
+#if PAGE_SIZE == 8192
+	trnctl |= (1<<5);
+#endif
+#endif
+	hw_write_20kx(hw, PTPALX, ptp_phys_low);
+	hw_write_20kx(hw, PTPAHX, ptp_phys_high);
+	hw_write_20kx(hw, TRNCTL, trnctl);
+	hw_write_20kx(hw, TRNIS, 0x200c01); /* realy needed? */
+
+	return 0;
+}
+
+/* Card initialization */
+#define GCTL_EAC	0x00000001
+#define GCTL_EAI	0x00000002
+#define GCTL_BEP	0x00000004
+#define GCTL_BES	0x00000008
+#define GCTL_DSP	0x00000010
+#define GCTL_DBP	0x00000020
+#define GCTL_ABP	0x00000040
+#define GCTL_TBP	0x00000080
+#define GCTL_SBP	0x00000100
+#define GCTL_FBP	0x00000200
+#define GCTL_XA		0x00000400
+#define GCTL_ET		0x00000800
+#define GCTL_PR		0x00001000
+#define GCTL_MRL	0x00002000
+#define GCTL_SDE	0x00004000
+#define GCTL_SDI	0x00008000
+#define GCTL_SM		0x00010000
+#define GCTL_SR		0x00020000
+#define GCTL_SD		0x00040000
+#define GCTL_SE		0x00080000
+#define GCTL_AID	0x00100000
+
+static int hw_pll_init(struct hw *hw, unsigned int rsr)
+{
+	unsigned int pllctl;
+	int i;
+
+	pllctl = (48000 == rsr) ? 0x1480a001 : 0x1480a731;
+	for (i = 0; i < 3; i++) {
+		if (hw_read_20kx(hw, PLLCTL) == pllctl)
+			break;
+
+		hw_write_20kx(hw, PLLCTL, pllctl);
+		mdelay(40);
+	}
+	if (i >= 3) {
+		printk(KERN_ALERT "PLL initialization failed!!!\n");
+		return -EBUSY;
+	}
+
+	return 0;
+}
+
+static int hw_auto_init(struct hw *hw)
+{
+	unsigned int gctl;
+	int i;
+
+	gctl = hw_read_20kx(hw, GCTL);
+	set_field(&gctl, GCTL_EAI, 0);
+	hw_write_20kx(hw, GCTL, gctl);
+	set_field(&gctl, GCTL_EAI, 1);
+	hw_write_20kx(hw, GCTL, gctl);
+	mdelay(10);
+	for (i = 0; i < 400000; i++) {
+		gctl = hw_read_20kx(hw, GCTL);
+		if (get_field(gctl, GCTL_AID))
+			break;
+	}
+	if (!get_field(gctl, GCTL_AID)) {
+		printk(KERN_ALERT "Card Auto-init failed!!!\n");
+		return -EBUSY;
+	}
+
+	return 0;
+}
+
+static int i2c_unlock(struct hw *hw)
+{
+	if ((hw_read_pci(hw, 0xcc) & 0xff) == 0xaa)
+		return 0;
+
+	hw_write_pci(hw, 0xcc, 0x8c);
+	hw_write_pci(hw, 0xcc, 0x0e);
+	if ((hw_read_pci(hw, 0xcc) & 0xff) == 0xaa)
+		return 0;
+
+	hw_write_pci(hw, 0xcc, 0xee);
+	hw_write_pci(hw, 0xcc, 0xaa);
+	if ((hw_read_pci(hw, 0xcc) & 0xff) == 0xaa)
+		return 0;
+
+	return -1;
+}
+
+static void i2c_lock(struct hw *hw)
+{
+	if ((hw_read_pci(hw, 0xcc) & 0xff) == 0xaa)
+		hw_write_pci(hw, 0xcc, 0x00);
+}
+
+static void i2c_write(struct hw *hw, u32 device, u32 addr, u32 data)
+{
+	unsigned int ret;
+
+	do {
+		ret = hw_read_pci(hw, 0xEC);
+	} while (!(ret & 0x800000));
+	hw_write_pci(hw, 0xE0, device);
+	hw_write_pci(hw, 0xE4, (data << 8) | (addr & 0xff));
+}
+
+/* DAC operations */
+
+static int hw_reset_dac(struct hw *hw)
+{
+	u32 i;
+	u16 gpioorg;
+	unsigned int ret;
+
+	if (i2c_unlock(hw))
+		return -1;
+
+	do {
+		ret = hw_read_pci(hw, 0xEC);
+	} while (!(ret & 0x800000));
+	hw_write_pci(hw, 0xEC, 0x05);  /* write to i2c status control */
+
+	/* To be effective, need to reset the DAC twice. */
+	for (i = 0; i < 2;  i++) {
+		/* set gpio */
+		mdelay(100);
+		gpioorg = (u16)hw_read_20kx(hw, GPIO);
+		gpioorg &= 0xfffd;
+		hw_write_20kx(hw, GPIO, gpioorg);
+		mdelay(1);
+		hw_write_20kx(hw, GPIO, gpioorg | 0x2);
+	}
+
+	i2c_write(hw, 0x00180080, 0x01, 0x80);
+	i2c_write(hw, 0x00180080, 0x02, 0x10);
+
+	i2c_lock(hw);
+
+	return 0;
+}
+
+static int hw_dac_init(struct hw *hw, const struct dac_conf *info)
+{
+	u32 data;
+	u16 gpioorg;
+	unsigned int ret;
+
+	if (hw->model == CTSB055X) {
+		/* SB055x, unmute outputs */
+		gpioorg = (u16)hw_read_20kx(hw, GPIO);
+		gpioorg &= 0xffbf;	/* set GPIO6 to low */
+		gpioorg |= 2;		/* set GPIO1 to high */
+		hw_write_20kx(hw, GPIO, gpioorg);
+		return 0;
+	}
+
+	/* mute outputs */
+	gpioorg = (u16)hw_read_20kx(hw, GPIO);
+	gpioorg &= 0xffbf;
+	hw_write_20kx(hw, GPIO, gpioorg);
+
+	hw_reset_dac(hw);
+
+	if (i2c_unlock(hw))
+		return -1;
+
+	hw_write_pci(hw, 0xEC, 0x05);  /* write to i2c status control */
+	do {
+		ret = hw_read_pci(hw, 0xEC);
+	} while (!(ret & 0x800000));
+
+	switch (info->msr) {
+	case 1:
+		data = 0x24;
+		break;
+	case 2:
+		data = 0x25;
+		break;
+	case 4:
+		data = 0x26;
+		break;
+	default:
+		data = 0x24;
+		break;
+	}
+
+	i2c_write(hw, 0x00180080, 0x06, data);
+	i2c_write(hw, 0x00180080, 0x09, data);
+	i2c_write(hw, 0x00180080, 0x0c, data);
+	i2c_write(hw, 0x00180080, 0x0f, data);
+
+	i2c_lock(hw);
+
+	/* unmute outputs */
+	gpioorg = (u16)hw_read_20kx(hw, GPIO);
+	gpioorg = gpioorg | 0x40;
+	hw_write_20kx(hw, GPIO, gpioorg);
+
+	return 0;
+}
+
+/* ADC operations */
+
+static int is_adc_input_selected_SB055x(struct hw *hw, enum ADCSRC type)
+{
+	return 0;
+}
+
+static int is_adc_input_selected_SBx(struct hw *hw, enum ADCSRC type)
+{
+	u32 data;
+
+	data = hw_read_20kx(hw, GPIO);
+	switch (type) {
+	case ADC_MICIN:
+		data = ((data & (0x1<<7)) && (data & (0x1<<8)));
+		break;
+	case ADC_LINEIN:
+		data = (!(data & (0x1<<7)) && (data & (0x1<<8)));
+		break;
+	case ADC_NONE: /* Digital I/O */
+		data = (!(data & (0x1<<8)));
+		break;
+	default:
+		data = 0;
+	}
+	return data;
+}
+
+static int is_adc_input_selected_hendrix(struct hw *hw, enum ADCSRC type)
+{
+	u32 data;
+
+	data = hw_read_20kx(hw, GPIO);
+	switch (type) {
+	case ADC_MICIN:
+		data = (data & (0x1 << 7)) ? 1 : 0;
+		break;
+	case ADC_LINEIN:
+		data = (data & (0x1 << 7)) ? 0 : 1;
+		break;
+	default:
+		data = 0;
+	}
+	return data;
+}
+
+static int hw_is_adc_input_selected(struct hw *hw, enum ADCSRC type)
+{
+	switch (hw->model) {
+	case CTSB055X:
+		return is_adc_input_selected_SB055x(hw, type);
+	case CTSB073X:
+		return is_adc_input_selected_hendrix(hw, type);
+	case CTUAA:
+		return is_adc_input_selected_hendrix(hw, type);
+	default:
+		return is_adc_input_selected_SBx(hw, type);
+	}
+}
+
+static int
+adc_input_select_SB055x(struct hw *hw, enum ADCSRC type, unsigned char boost)
+{
+	u32 data;
+
+	/*
+	 * check and set the following GPIO bits accordingly
+	 * ADC_Gain		= GPIO2
+	 * DRM_off		= GPIO3
+	 * Mic_Pwr_on		= GPIO7
+	 * Digital_IO_Sel	= GPIO8
+	 * Mic_Sw		= GPIO9
+	 * Aux/MicLine_Sw	= GPIO12
+	 */
+	data = hw_read_20kx(hw, GPIO);
+	data &= 0xec73;
+	switch (type) {
+	case ADC_MICIN:
+		data |= (0x1<<7) | (0x1<<8) | (0x1<<9) ;
+		data |= boost ? (0x1<<2) : 0;
+		break;
+	case ADC_LINEIN:
+		data |= (0x1<<8);
+		break;
+	case ADC_AUX:
+		data |= (0x1<<8) | (0x1<<12);
+		break;
+	case ADC_NONE:
+		data |= (0x1<<12);  /* set to digital */
+		break;
+	default:
+		return -1;
+	}
+
+	hw_write_20kx(hw, GPIO, data);
+
+	return 0;
+}
+
+
+static int
+adc_input_select_SBx(struct hw *hw, enum ADCSRC type, unsigned char boost)
+{
+	u32 data;
+	u32 i2c_data;
+	unsigned int ret;
+
+	if (i2c_unlock(hw))
+		return -1;
+
+	do {
+		ret = hw_read_pci(hw, 0xEC);
+	} while (!(ret & 0x800000)); /* i2c ready poll */
+	/* set i2c access mode as Direct Control */
+	hw_write_pci(hw, 0xEC, 0x05);
+
+	data = hw_read_20kx(hw, GPIO);
+	switch (type) {
+	case ADC_MICIN:
+		data |= ((0x1 << 7) | (0x1 << 8));
+		i2c_data = 0x1;  /* Mic-in */
+		break;
+	case ADC_LINEIN:
+		data &= ~(0x1 << 7);
+		data |= (0x1 << 8);
+		i2c_data = 0x2; /* Line-in */
+		break;
+	case ADC_NONE:
+		data &= ~(0x1 << 8);
+		i2c_data = 0x0; /* set to Digital */
+		break;
+	default:
+		i2c_lock(hw);
+		return -1;
+	}
+	hw_write_20kx(hw, GPIO, data);
+	i2c_write(hw, 0x001a0080, 0x2a, i2c_data);
+	if (boost) {
+		i2c_write(hw, 0x001a0080, 0x1c, 0xe7); /* +12dB boost */
+		i2c_write(hw, 0x001a0080, 0x1e, 0xe7); /* +12dB boost */
+	} else {
+		i2c_write(hw, 0x001a0080, 0x1c, 0xcf); /* No boost */
+		i2c_write(hw, 0x001a0080, 0x1e, 0xcf); /* No boost */
+	}
+
+	i2c_lock(hw);
+
+	return 0;
+}
+
+static int
+adc_input_select_hendrix(struct hw *hw, enum ADCSRC type, unsigned char boost)
+{
+	u32 data;
+	u32 i2c_data;
+	unsigned int ret;
+
+	if (i2c_unlock(hw))
+		return -1;
+
+	do {
+		ret = hw_read_pci(hw, 0xEC);
+	} while (!(ret & 0x800000)); /* i2c ready poll */
+	/* set i2c access mode as Direct Control */
+	hw_write_pci(hw, 0xEC, 0x05);
+
+	data = hw_read_20kx(hw, GPIO);
+	switch (type) {
+	case ADC_MICIN:
+		data |= (0x1 << 7);
+		i2c_data = 0x1;  /* Mic-in */
+		break;
+	case ADC_LINEIN:
+		data &= ~(0x1 << 7);
+		i2c_data = 0x2; /* Line-in */
+		break;
+	default:
+		i2c_lock(hw);
+		return -1;
+	}
+	hw_write_20kx(hw, GPIO, data);
+	i2c_write(hw, 0x001a0080, 0x2a, i2c_data);
+	if (boost) {
+		i2c_write(hw, 0x001a0080, 0x1c, 0xe7); /* +12dB boost */
+		i2c_write(hw, 0x001a0080, 0x1e, 0xe7); /* +12dB boost */
+	} else {
+		i2c_write(hw, 0x001a0080, 0x1c, 0xcf); /* No boost */
+		i2c_write(hw, 0x001a0080, 0x1e, 0xcf); /* No boost */
+	}
+
+	i2c_lock(hw);
+
+	return 0;
+}
+
+static int hw_adc_input_select(struct hw *hw, enum ADCSRC type)
+{
+	int state = type == ADC_MICIN;
+
+	switch (hw->model) {
+	case CTSB055X:
+		return adc_input_select_SB055x(hw, type, state);
+	case CTSB073X:
+		return adc_input_select_hendrix(hw, type, state);
+	case CTUAA:
+		return adc_input_select_hendrix(hw, type, state);
+	default:
+		return adc_input_select_SBx(hw, type, state);
+	}
+}
+
+static int adc_init_SB055x(struct hw *hw, int input, int mic20db)
+{
+	return adc_input_select_SB055x(hw, input, mic20db);
+}
+
+static int adc_init_SBx(struct hw *hw, int input, int mic20db)
+{
+	u16 gpioorg;
+	u16 input_source;
+	u32 adcdata;
+	unsigned int ret;
+
+	input_source = 0x100;  /* default to analog */
+	switch (input) {
+	case ADC_MICIN:
+		adcdata = 0x1;
+		input_source = 0x180;  /* set GPIO7 to select Mic */
+		break;
+	case ADC_LINEIN:
+		adcdata = 0x2;
+		break;
+	case ADC_VIDEO:
+		adcdata = 0x4;
+		break;
+	case ADC_AUX:
+		adcdata = 0x8;
+		break;
+	case ADC_NONE:
+		adcdata = 0x0;
+		input_source = 0x0;  /* set to Digital */
+		break;
+	default:
+		adcdata = 0x0;
+		break;
+	}
+
+	if (i2c_unlock(hw))
+		return -1;
+
+	do {
+		ret = hw_read_pci(hw, 0xEC);
+	} while (!(ret & 0x800000)); /* i2c ready poll */
+	hw_write_pci(hw, 0xEC, 0x05);  /* write to i2c status control */
+
+	i2c_write(hw, 0x001a0080, 0x0e, 0x08);
+	i2c_write(hw, 0x001a0080, 0x18, 0x0a);
+	i2c_write(hw, 0x001a0080, 0x28, 0x86);
+	i2c_write(hw, 0x001a0080, 0x2a, adcdata);
+
+	if (mic20db) {
+		i2c_write(hw, 0x001a0080, 0x1c, 0xf7);
+		i2c_write(hw, 0x001a0080, 0x1e, 0xf7);
+	} else {
+		i2c_write(hw, 0x001a0080, 0x1c, 0xcf);
+		i2c_write(hw, 0x001a0080, 0x1e, 0xcf);
+	}
+
+	if (!(hw_read_20kx(hw, ID0) & 0x100))
+		i2c_write(hw, 0x001a0080, 0x16, 0x26);
+
+	i2c_lock(hw);
+
+	gpioorg = (u16)hw_read_20kx(hw,  GPIO);
+	gpioorg &= 0xfe7f;
+	gpioorg |= input_source;
+	hw_write_20kx(hw, GPIO, gpioorg);
+
+	return 0;
+}
+
+static int hw_adc_init(struct hw *hw, const struct adc_conf *info)
+{
+	if (hw->model == CTSB055X)
+		return adc_init_SB055x(hw, info->input, info->mic20db);
+	else
+		return adc_init_SBx(hw, info->input, info->mic20db);
+}
+
+static int hw_have_digit_io_switch(struct hw *hw)
+{
+	/* SB073x and Vista compatible cards have no digit IO switch */
+	return !(hw->model == CTSB073X || hw->model == CTUAA);
+}
+
+#define CTLBITS(a, b, c, d)	(((a) << 24) | ((b) << 16) | ((c) << 8) | (d))
+
+#define UAA_CFG_PWRSTATUS	0x44
+#define UAA_CFG_SPACE_FLAG	0xA0
+#define UAA_CORE_CHANGE		0x3FFC
+static int uaa_to_xfi(struct pci_dev *pci)
+{
+	unsigned int bar0, bar1, bar2, bar3, bar4, bar5;
+	unsigned int cmd, irq, cl_size, l_timer, pwr;
+	unsigned int is_uaa;
+	unsigned int data[4] = {0};
+	unsigned int io_base;
+	void *mem_base;
+	int i;
+	const u32 CTLX = CTLBITS('C', 'T', 'L', 'X');
+	const u32 CTL_ = CTLBITS('C', 'T', 'L', '-');
+	const u32 CTLF = CTLBITS('C', 'T', 'L', 'F');
+	const u32 CTLi = CTLBITS('C', 'T', 'L', 'i');
+	const u32 CTLA = CTLBITS('C', 'T', 'L', 'A');
+	const u32 CTLZ = CTLBITS('C', 'T', 'L', 'Z');
+	const u32 CTLL = CTLBITS('C', 'T', 'L', 'L');
+
+	/* By default, Hendrix card UAA Bar0 should be using memory... */
+	io_base = pci_resource_start(pci, 0);
+	mem_base = ioremap(io_base, pci_resource_len(pci, 0));
+	if (NULL == mem_base)
+		return -ENOENT;
+
+	/* Read current mode from Mode Change Register */
+	for (i = 0; i < 4; i++)
+		data[i] = readl(mem_base + UAA_CORE_CHANGE);
+
+	/* Determine current mode... */
+	if (data[0] == CTLA) {
+		is_uaa = ((data[1] == CTLZ && data[2] == CTLL
+			  && data[3] == CTLA) || (data[1] == CTLA
+			  && data[2] == CTLZ && data[3] == CTLL));
+	} else if (data[0] == CTLZ) {
+		is_uaa = (data[1] == CTLL
+				&& data[2] == CTLA && data[3] == CTLA);
+	} else if (data[0] == CTLL) {
+		is_uaa = (data[1] == CTLA
+				&& data[2] == CTLA && data[3] == CTLZ);
+	} else {
+		is_uaa = 0;
+	}
+
+	if (!is_uaa) {
+		/* Not in UAA mode currently. Return directly. */
+		iounmap(mem_base);
+		return 0;
+	}
+
+	pci_read_config_dword(pci, PCI_BASE_ADDRESS_0, &bar0);
+	pci_read_config_dword(pci, PCI_BASE_ADDRESS_1, &bar1);
+	pci_read_config_dword(pci, PCI_BASE_ADDRESS_2, &bar2);
+	pci_read_config_dword(pci, PCI_BASE_ADDRESS_3, &bar3);
+	pci_read_config_dword(pci, PCI_BASE_ADDRESS_4, &bar4);
+	pci_read_config_dword(pci, PCI_BASE_ADDRESS_5, &bar5);
+	pci_read_config_dword(pci, PCI_INTERRUPT_LINE, &irq);
+	pci_read_config_dword(pci, PCI_CACHE_LINE_SIZE, &cl_size);
+	pci_read_config_dword(pci, PCI_LATENCY_TIMER, &l_timer);
+	pci_read_config_dword(pci, UAA_CFG_PWRSTATUS, &pwr);
+	pci_read_config_dword(pci, PCI_COMMAND, &cmd);
+
+	/* Set up X-Fi core PCI configuration space. */
+	/* Switch to X-Fi config space with BAR0 exposed. */
+	pci_write_config_dword(pci, UAA_CFG_SPACE_FLAG, 0x87654321);
+	/* Copy UAA's BAR5 into X-Fi BAR0 */
+	pci_write_config_dword(pci, PCI_BASE_ADDRESS_0, bar5);
+	/* Switch to X-Fi config space without BAR0 exposed. */
+	pci_write_config_dword(pci, UAA_CFG_SPACE_FLAG, 0x12345678);
+	pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, bar1);
+	pci_write_config_dword(pci, PCI_BASE_ADDRESS_2, bar2);
+	pci_write_config_dword(pci, PCI_BASE_ADDRESS_3, bar3);
+	pci_write_config_dword(pci, PCI_BASE_ADDRESS_4, bar4);
+	pci_write_config_dword(pci, PCI_INTERRUPT_LINE, irq);
+	pci_write_config_dword(pci, PCI_CACHE_LINE_SIZE, cl_size);
+	pci_write_config_dword(pci, PCI_LATENCY_TIMER, l_timer);
+	pci_write_config_dword(pci, UAA_CFG_PWRSTATUS, pwr);
+	pci_write_config_dword(pci, PCI_COMMAND, cmd);
+
+	/* Switch to X-Fi mode */
+	writel(CTLX, (mem_base + UAA_CORE_CHANGE));
+	writel(CTL_, (mem_base + UAA_CORE_CHANGE));
+	writel(CTLF, (mem_base + UAA_CORE_CHANGE));
+	writel(CTLi, (mem_base + UAA_CORE_CHANGE));
+
+	iounmap(mem_base);
+
+	return 0;
+}
+
+static irqreturn_t ct_20k1_interrupt(int irq, void *dev_id)
+{
+	struct hw *hw = dev_id;
+	unsigned int status;
+
+	status = hw_read_20kx(hw, GIP);
+	if (!status)
+		return IRQ_NONE;
+
+	if (hw->irq_callback)
+		hw->irq_callback(hw->irq_callback_data, status);
+
+	hw_write_20kx(hw, GIP, status);
+	return IRQ_HANDLED;
+}
+
+static int hw_card_start(struct hw *hw)
+{
+	int err;
+	struct pci_dev *pci = hw->pci;
+
+	err = pci_enable_device(pci);
+	if (err < 0)
+		return err;
+
+	/* Set DMA transfer mask */
+	if (pci_set_dma_mask(pci, CT_XFI_DMA_MASK) < 0 ||
+	    pci_set_consistent_dma_mask(pci, CT_XFI_DMA_MASK) < 0) {
+		printk(KERN_ERR "architecture does not support PCI "
+				"busmaster DMA with mask 0x%llx\n",
+		       CT_XFI_DMA_MASK);
+		err = -ENXIO;
+		goto error1;
+	}
+
+	err = pci_request_regions(pci, "XFi");
+	if (err < 0)
+		goto error1;
+
+	/* Switch to X-Fi mode from UAA mode if neeeded */
+	if (hw->model == CTUAA) {
+		err = uaa_to_xfi(pci);
+		if (err)
+			goto error2;
+
+		hw->io_base = pci_resource_start(pci, 5);
+	} else {
+		hw->io_base = pci_resource_start(pci, 0);
+	}
+
+	err = request_irq(pci->irq, ct_20k1_interrupt, IRQF_SHARED,
+			  "ctxfi", hw);
+	if (err < 0) {
+		printk(KERN_ERR "XFi: Cannot get irq %d\n", pci->irq);
+		goto error2;
+	}
+	hw->irq = pci->irq;
+
+	pci_set_master(pci);
+
+	return 0;
+
+error2:
+	pci_release_regions(pci);
+	hw->io_base = 0;
+error1:
+	pci_disable_device(pci);
+	return err;
+}
+
+static int hw_card_stop(struct hw *hw)
+{
+	/* TODO: Disable interrupt and so on... */
+	if (hw->irq >= 0)
+		synchronize_irq(hw->irq);
+	return 0;
+}
+
+static int hw_card_shutdown(struct hw *hw)
+{
+	if (hw->irq >= 0)
+		free_irq(hw->irq, hw);
+
+	hw->irq	= -1;
+
+	if (NULL != ((void *)hw->mem_base))
+		iounmap((void *)hw->mem_base);
+
+	hw->mem_base = (unsigned long)NULL;
+
+	if (hw->io_base)
+		pci_release_regions(hw->pci);
+
+	hw->io_base = 0;
+
+	pci_disable_device(hw->pci);
+
+	return 0;
+}
+
+static int hw_card_init(struct hw *hw, struct card_conf *info)
+{
+	int err;
+	unsigned int gctl;
+	u32 data;
+	struct dac_conf dac_info = {0};
+	struct adc_conf adc_info = {0};
+	struct daio_conf daio_info = {0};
+	struct trn_conf trn_info = {0};
+
+	/* Get PCI io port base address and do Hendrix switch if needed. */
+	if (!hw->io_base) {
+		err = hw_card_start(hw);
+		if (err)
+			return err;
+	}
+
+	/* PLL init */
+	err = hw_pll_init(hw, info->rsr);
+	if (err < 0)
+		return err;
+
+	/* kick off auto-init */
+	err = hw_auto_init(hw);
+	if (err < 0)
+		return err;
+
+	/* Enable audio ring */
+	gctl = hw_read_20kx(hw, GCTL);
+	set_field(&gctl, GCTL_EAC, 1);
+	set_field(&gctl, GCTL_DBP, 1);
+	set_field(&gctl, GCTL_TBP, 1);
+	set_field(&gctl, GCTL_FBP, 1);
+	set_field(&gctl, GCTL_ET, 1);
+	hw_write_20kx(hw, GCTL, gctl);
+	mdelay(10);
+
+	/* Reset all global pending interrupts */
+	hw_write_20kx(hw, GIE, 0);
+	/* Reset all SRC pending interrupts */
+	hw_write_20kx(hw, SRCIP, 0);
+	mdelay(30);
+
+	/* Detect the card ID and configure GPIO accordingly. */
+	switch (hw->model) {
+	case CTSB055X:
+		hw_write_20kx(hw, GPIOCTL, 0x13fe);
+		break;
+	case CTSB073X:
+		hw_write_20kx(hw, GPIOCTL, 0x00e6);
+		break;
+	case CTUAA:
+		hw_write_20kx(hw, GPIOCTL, 0x00c2);
+		break;
+	default:
+		hw_write_20kx(hw, GPIOCTL, 0x01e6);
+		break;
+	}
+
+	trn_info.vm_pgt_phys = info->vm_pgt_phys;
+	err = hw_trn_init(hw, &trn_info);
+	if (err < 0)
+		return err;
+
+	daio_info.msr = info->msr;
+	err = hw_daio_init(hw, &daio_info);
+	if (err < 0)
+		return err;
+
+	dac_info.msr = info->msr;
+	err = hw_dac_init(hw, &dac_info);
+	if (err < 0)
+		return err;
+
+	adc_info.msr = info->msr;
+	adc_info.input = ADC_LINEIN;
+	adc_info.mic20db = 0;
+	err = hw_adc_init(hw, &adc_info);
+	if (err < 0)
+		return err;
+
+	data = hw_read_20kx(hw, SRCMCTL);
+	data |= 0x1; /* Enables input from the audio ring */
+	hw_write_20kx(hw, SRCMCTL, data);
+
+	return 0;
+}
+
+static u32 hw_read_20kx(struct hw *hw, u32 reg)
+{
+	u32 value;
+	unsigned long flags;
+
+	spin_lock_irqsave(
+		&container_of(hw, struct hw20k1, hw)->reg_20k1_lock, flags);
+	outl(reg, hw->io_base + 0x0);
+	value = inl(hw->io_base + 0x4);
+	spin_unlock_irqrestore(
+		&container_of(hw, struct hw20k1, hw)->reg_20k1_lock, flags);
+
+	return value;
+}
+
+static void hw_write_20kx(struct hw *hw, u32 reg, u32 data)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(
+		&container_of(hw, struct hw20k1, hw)->reg_20k1_lock, flags);
+	outl(reg, hw->io_base + 0x0);
+	outl(data, hw->io_base + 0x4);
+	spin_unlock_irqrestore(
+		&container_of(hw, struct hw20k1, hw)->reg_20k1_lock, flags);
+
+}
+
+static u32 hw_read_pci(struct hw *hw, u32 reg)
+{
+	u32 value;
+	unsigned long flags;
+
+	spin_lock_irqsave(
+		&container_of(hw, struct hw20k1, hw)->reg_pci_lock, flags);
+	outl(reg, hw->io_base + 0x10);
+	value = inl(hw->io_base + 0x14);
+	spin_unlock_irqrestore(
+		&container_of(hw, struct hw20k1, hw)->reg_pci_lock, flags);
+
+	return value;
+}
+
+static void hw_write_pci(struct hw *hw, u32 reg, u32 data)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(
+		&container_of(hw, struct hw20k1, hw)->reg_pci_lock, flags);
+	outl(reg, hw->io_base + 0x10);
+	outl(data, hw->io_base + 0x14);
+	spin_unlock_irqrestore(
+		&container_of(hw, struct hw20k1, hw)->reg_pci_lock, flags);
+}
+
+static struct hw ct20k1_preset __devinitdata = {
+	.irq = -1,
+
+	.card_init = hw_card_init,
+	.card_stop = hw_card_stop,
+	.pll_init = hw_pll_init,
+	.is_adc_source_selected = hw_is_adc_input_selected,
+	.select_adc_source = hw_adc_input_select,
+	.have_digit_io_switch = hw_have_digit_io_switch,
+
+	.src_rsc_get_ctrl_blk = src_get_rsc_ctrl_blk,
+	.src_rsc_put_ctrl_blk = src_put_rsc_ctrl_blk,
+	.src_mgr_get_ctrl_blk = src_mgr_get_ctrl_blk,
+	.src_mgr_put_ctrl_blk = src_mgr_put_ctrl_blk,
+	.src_set_state = src_set_state,
+	.src_set_bm = src_set_bm,
+	.src_set_rsr = src_set_rsr,
+	.src_set_sf = src_set_sf,
+	.src_set_wr = src_set_wr,
+	.src_set_pm = src_set_pm,
+	.src_set_rom = src_set_rom,
+	.src_set_vo = src_set_vo,
+	.src_set_st = src_set_st,
+	.src_set_ie = src_set_ie,
+	.src_set_ilsz = src_set_ilsz,
+	.src_set_bp = src_set_bp,
+	.src_set_cisz = src_set_cisz,
+	.src_set_ca = src_set_ca,
+	.src_set_sa = src_set_sa,
+	.src_set_la = src_set_la,
+	.src_set_pitch = src_set_pitch,
+	.src_set_dirty = src_set_dirty,
+	.src_set_clear_zbufs = src_set_clear_zbufs,
+	.src_set_dirty_all = src_set_dirty_all,
+	.src_commit_write = src_commit_write,
+	.src_get_ca = src_get_ca,
+	.src_get_dirty = src_get_dirty,
+	.src_dirty_conj_mask = src_dirty_conj_mask,
+	.src_mgr_enbs_src = src_mgr_enbs_src,
+	.src_mgr_enb_src = src_mgr_enb_src,
+	.src_mgr_dsb_src = src_mgr_dsb_src,
+	.src_mgr_commit_write = src_mgr_commit_write,
+
+	.srcimp_mgr_get_ctrl_blk = srcimp_mgr_get_ctrl_blk,
+	.srcimp_mgr_put_ctrl_blk = srcimp_mgr_put_ctrl_blk,
+	.srcimp_mgr_set_imaparc = srcimp_mgr_set_imaparc,
+	.srcimp_mgr_set_imapuser = srcimp_mgr_set_imapuser,
+	.srcimp_mgr_set_imapnxt = srcimp_mgr_set_imapnxt,
+	.srcimp_mgr_set_imapaddr = srcimp_mgr_set_imapaddr,
+	.srcimp_mgr_commit_write = srcimp_mgr_commit_write,
+
+	.amixer_rsc_get_ctrl_blk = amixer_rsc_get_ctrl_blk,
+	.amixer_rsc_put_ctrl_blk = amixer_rsc_put_ctrl_blk,
+	.amixer_mgr_get_ctrl_blk = amixer_mgr_get_ctrl_blk,
+	.amixer_mgr_put_ctrl_blk = amixer_mgr_put_ctrl_blk,
+	.amixer_set_mode = amixer_set_mode,
+	.amixer_set_iv = amixer_set_iv,
+	.amixer_set_x = amixer_set_x,
+	.amixer_set_y = amixer_set_y,
+	.amixer_set_sadr = amixer_set_sadr,
+	.amixer_set_se = amixer_set_se,
+	.amixer_set_dirty = amixer_set_dirty,
+	.amixer_set_dirty_all = amixer_set_dirty_all,
+	.amixer_commit_write = amixer_commit_write,
+	.amixer_get_y = amixer_get_y,
+	.amixer_get_dirty = amixer_get_dirty,
+
+	.dai_get_ctrl_blk = dai_get_ctrl_blk,
+	.dai_put_ctrl_blk = dai_put_ctrl_blk,
+	.dai_srt_set_srco = dai_srt_set_srcr,
+	.dai_srt_set_srcm = dai_srt_set_srcl,
+	.dai_srt_set_rsr = dai_srt_set_rsr,
+	.dai_srt_set_drat = dai_srt_set_drat,
+	.dai_srt_set_ec = dai_srt_set_ec,
+	.dai_srt_set_et = dai_srt_set_et,
+	.dai_commit_write = dai_commit_write,
+
+	.dao_get_ctrl_blk = dao_get_ctrl_blk,
+	.dao_put_ctrl_blk = dao_put_ctrl_blk,
+	.dao_set_spos = dao_set_spos,
+	.dao_commit_write = dao_commit_write,
+	.dao_get_spos = dao_get_spos,
+
+	.daio_mgr_get_ctrl_blk = daio_mgr_get_ctrl_blk,
+	.daio_mgr_put_ctrl_blk = daio_mgr_put_ctrl_blk,
+	.daio_mgr_enb_dai = daio_mgr_enb_dai,
+	.daio_mgr_dsb_dai = daio_mgr_dsb_dai,
+	.daio_mgr_enb_dao = daio_mgr_enb_dao,
+	.daio_mgr_dsb_dao = daio_mgr_dsb_dao,
+	.daio_mgr_dao_init = daio_mgr_dao_init,
+	.daio_mgr_set_imaparc = daio_mgr_set_imaparc,
+	.daio_mgr_set_imapnxt = daio_mgr_set_imapnxt,
+	.daio_mgr_set_imapaddr = daio_mgr_set_imapaddr,
+	.daio_mgr_commit_write = daio_mgr_commit_write,
+
+	.set_timer_irq = set_timer_irq,
+	.set_timer_tick = set_timer_tick,
+	.get_wc = get_wc,
+};
+
+int __devinit create_20k1_hw_obj(struct hw **rhw)
+{
+	struct hw20k1 *hw20k1;
+
+	*rhw = NULL;
+	hw20k1 = kzalloc(sizeof(*hw20k1), GFP_KERNEL);
+	if (NULL == hw20k1)
+		return -ENOMEM;
+
+	spin_lock_init(&hw20k1->reg_20k1_lock);
+	spin_lock_init(&hw20k1->reg_pci_lock);
+
+	hw20k1->hw = ct20k1_preset;
+
+	*rhw = &hw20k1->hw;
+
+	return 0;
+}
+
+int destroy_20k1_hw_obj(struct hw *hw)
+{
+	if (hw->io_base)
+		hw_card_shutdown(hw);
+
+	kfree(container_of(hw, struct hw20k1, hw));
+	return 0;
+}
diff --git a/sound/pci/ctxfi/cthw20k1.h b/sound/pci/ctxfi/cthw20k1.h
new file mode 100644
index 000000000000..02f72fb448a6
--- /dev/null
+++ b/sound/pci/ctxfi/cthw20k1.h
@@ -0,0 +1,26 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	cthw20k1.h
+ *
+ * @Brief
+ * This file contains the definition of hardware access methord.
+ *
+ * @Author	Liu Chun
+ * @Date 	May 13 2008
+ *
+ */
+
+#ifndef CTHW20K1_H
+#define CTHW20K1_H
+
+#include "cthardware.h"
+
+int create_20k1_hw_obj(struct hw **rhw);
+int destroy_20k1_hw_obj(struct hw *hw);
+
+#endif /* CTHW20K1_H */
diff --git a/sound/pci/ctxfi/cthw20k2.c b/sound/pci/ctxfi/cthw20k2.c
new file mode 100644
index 000000000000..4493a51c6b01
--- /dev/null
+++ b/sound/pci/ctxfi/cthw20k2.c
@@ -0,0 +1,2137 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	cthw20k2.c
+ *
+ * @Brief
+ * This file contains the implementation of hardware access methord for 20k2.
+ *
+ * @Author	Liu Chun
+ * @Date 	May 14 2008
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/io.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include "cthw20k2.h"
+#include "ct20k2reg.h"
+
+#if BITS_PER_LONG == 32
+#define CT_XFI_DMA_MASK		DMA_BIT_MASK(32) /* 32 bit PTE */
+#else
+#define CT_XFI_DMA_MASK		DMA_BIT_MASK(64) /* 64 bit PTE */
+#endif
+
+struct hw20k2 {
+	struct hw hw;
+	/* for i2c */
+	unsigned char dev_id;
+	unsigned char addr_size;
+	unsigned char data_size;
+};
+
+static u32 hw_read_20kx(struct hw *hw, u32 reg);
+static void hw_write_20kx(struct hw *hw, u32 reg, u32 data);
+
+/*
+ * Type definition block.
+ * The layout of control structures can be directly applied on 20k2 chip.
+ */
+
+/*
+ * SRC control block definitions.
+ */
+
+/* SRC resource control block */
+#define SRCCTL_STATE	0x00000007
+#define SRCCTL_BM	0x00000008
+#define SRCCTL_RSR	0x00000030
+#define SRCCTL_SF	0x000001C0
+#define SRCCTL_WR	0x00000200
+#define SRCCTL_PM	0x00000400
+#define SRCCTL_ROM	0x00001800
+#define SRCCTL_VO	0x00002000
+#define SRCCTL_ST	0x00004000
+#define SRCCTL_IE	0x00008000
+#define SRCCTL_ILSZ	0x000F0000
+#define SRCCTL_BP	0x00100000
+
+#define SRCCCR_CISZ	0x000007FF
+#define SRCCCR_CWA	0x001FF800
+#define SRCCCR_D	0x00200000
+#define SRCCCR_RS	0x01C00000
+#define SRCCCR_NAL	0x3E000000
+#define SRCCCR_RA	0xC0000000
+
+#define SRCCA_CA	0x0FFFFFFF
+#define SRCCA_RS	0xE0000000
+
+#define SRCSA_SA	0x0FFFFFFF
+
+#define SRCLA_LA	0x0FFFFFFF
+
+/* Mixer Parameter Ring ram Low and Hight register.
+ * Fixed-point value in 8.24 format for parameter channel */
+#define MPRLH_PITCH	0xFFFFFFFF
+
+/* SRC resource register dirty flags */
+union src_dirty {
+	struct {
+		u16 ctl:1;
+		u16 ccr:1;
+		u16 sa:1;
+		u16 la:1;
+		u16 ca:1;
+		u16 mpr:1;
+		u16 czbfs:1;	/* Clear Z-Buffers */
+		u16 rsv:9;
+	} bf;
+	u16 data;
+};
+
+struct src_rsc_ctrl_blk {
+	unsigned int	ctl;
+	unsigned int 	ccr;
+	unsigned int	ca;
+	unsigned int	sa;
+	unsigned int	la;
+	unsigned int	mpr;
+	union src_dirty	dirty;
+};
+
+/* SRC manager control block */
+union src_mgr_dirty {
+	struct {
+		u16 enb0:1;
+		u16 enb1:1;
+		u16 enb2:1;
+		u16 enb3:1;
+		u16 enb4:1;
+		u16 enb5:1;
+		u16 enb6:1;
+		u16 enb7:1;
+		u16 enbsa:1;
+		u16 rsv:7;
+	} bf;
+	u16 data;
+};
+
+struct src_mgr_ctrl_blk {
+	unsigned int		enbsa;
+	unsigned int		enb[8];
+	union src_mgr_dirty	dirty;
+};
+
+/* SRCIMP manager control block */
+#define SRCAIM_ARC	0x00000FFF
+#define SRCAIM_NXT	0x00FF0000
+#define SRCAIM_SRC	0xFF000000
+
+struct srcimap {
+	unsigned int srcaim;
+	unsigned int idx;
+};
+
+/* SRCIMP manager register dirty flags */
+union srcimp_mgr_dirty {
+	struct {
+		u16 srcimap:1;
+		u16 rsv:15;
+	} bf;
+	u16 data;
+};
+
+struct srcimp_mgr_ctrl_blk {
+	struct srcimap		srcimap;
+	union srcimp_mgr_dirty	dirty;
+};
+
+/*
+ * Function implementation block.
+ */
+
+static int src_get_rsc_ctrl_blk(void **rblk)
+{
+	struct src_rsc_ctrl_blk *blk;
+
+	*rblk = NULL;
+	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+	if (NULL == blk)
+		return -ENOMEM;
+
+	*rblk = blk;
+
+	return 0;
+}
+
+static int src_put_rsc_ctrl_blk(void *blk)
+{
+	kfree(blk);
+
+	return 0;
+}
+
+static int src_set_state(void *blk, unsigned int state)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_STATE, state);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_bm(void *blk, unsigned int bm)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_BM, bm);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_rsr(void *blk, unsigned int rsr)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_RSR, rsr);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_sf(void *blk, unsigned int sf)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_SF, sf);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_wr(void *blk, unsigned int wr)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_WR, wr);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_pm(void *blk, unsigned int pm)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_PM, pm);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_rom(void *blk, unsigned int rom)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_ROM, rom);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_vo(void *blk, unsigned int vo)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_VO, vo);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_st(void *blk, unsigned int st)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_ST, st);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_ie(void *blk, unsigned int ie)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_IE, ie);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_ilsz(void *blk, unsigned int ilsz)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_ILSZ, ilsz);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_bp(void *blk, unsigned int bp)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ctl, SRCCTL_BP, bp);
+	ctl->dirty.bf.ctl = 1;
+	return 0;
+}
+
+static int src_set_cisz(void *blk, unsigned int cisz)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ccr, SRCCCR_CISZ, cisz);
+	ctl->dirty.bf.ccr = 1;
+	return 0;
+}
+
+static int src_set_ca(void *blk, unsigned int ca)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->ca, SRCCA_CA, ca);
+	ctl->dirty.bf.ca = 1;
+	return 0;
+}
+
+static int src_set_sa(void *blk, unsigned int sa)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->sa, SRCSA_SA, sa);
+	ctl->dirty.bf.sa = 1;
+	return 0;
+}
+
+static int src_set_la(void *blk, unsigned int la)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->la, SRCLA_LA, la);
+	ctl->dirty.bf.la = 1;
+	return 0;
+}
+
+static int src_set_pitch(void *blk, unsigned int pitch)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->mpr, MPRLH_PITCH, pitch);
+	ctl->dirty.bf.mpr = 1;
+	return 0;
+}
+
+static int src_set_clear_zbufs(void *blk, unsigned int clear)
+{
+	((struct src_rsc_ctrl_blk *)blk)->dirty.bf.czbfs = (clear ? 1 : 0);
+	return 0;
+}
+
+static int src_set_dirty(void *blk, unsigned int flags)
+{
+	((struct src_rsc_ctrl_blk *)blk)->dirty.data = (flags & 0xffff);
+	return 0;
+}
+
+static int src_set_dirty_all(void *blk)
+{
+	((struct src_rsc_ctrl_blk *)blk)->dirty.data = ~(0x0);
+	return 0;
+}
+
+#define AR_SLOT_SIZE		4096
+#define AR_SLOT_BLOCK_SIZE	16
+#define AR_PTS_PITCH		6
+#define AR_PARAM_SRC_OFFSET	0x60
+
+static unsigned int src_param_pitch_mixer(unsigned int src_idx)
+{
+	return ((src_idx << 4) + AR_PTS_PITCH + AR_SLOT_SIZE
+			- AR_PARAM_SRC_OFFSET) % AR_SLOT_SIZE;
+
+}
+
+static int src_commit_write(struct hw *hw, unsigned int idx, void *blk)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+	int i;
+
+	if (ctl->dirty.bf.czbfs) {
+		/* Clear Z-Buffer registers */
+		for (i = 0; i < 8; i++)
+			hw_write_20kx(hw, SRC_UPZ+idx*0x100+i*0x4, 0);
+
+		for (i = 0; i < 4; i++)
+			hw_write_20kx(hw, SRC_DN0Z+idx*0x100+i*0x4, 0);
+
+		for (i = 0; i < 8; i++)
+			hw_write_20kx(hw, SRC_DN1Z+idx*0x100+i*0x4, 0);
+
+		ctl->dirty.bf.czbfs = 0;
+	}
+	if (ctl->dirty.bf.mpr) {
+		/* Take the parameter mixer resource in the same group as that
+		 * the idx src is in for simplicity. Unlike src, all conjugate
+		 * parameter mixer resources must be programmed for
+		 * corresponding conjugate src resources. */
+		unsigned int pm_idx = src_param_pitch_mixer(idx);
+		hw_write_20kx(hw, MIXER_PRING_LO_HI+4*pm_idx, ctl->mpr);
+		hw_write_20kx(hw, MIXER_PMOPLO+8*pm_idx, 0x3);
+		hw_write_20kx(hw, MIXER_PMOPHI+8*pm_idx, 0x0);
+		ctl->dirty.bf.mpr = 0;
+	}
+	if (ctl->dirty.bf.sa) {
+		hw_write_20kx(hw, SRC_SA+idx*0x100, ctl->sa);
+		ctl->dirty.bf.sa = 0;
+	}
+	if (ctl->dirty.bf.la) {
+		hw_write_20kx(hw, SRC_LA+idx*0x100, ctl->la);
+		ctl->dirty.bf.la = 0;
+	}
+	if (ctl->dirty.bf.ca) {
+		hw_write_20kx(hw, SRC_CA+idx*0x100, ctl->ca);
+		ctl->dirty.bf.ca = 0;
+	}
+
+	/* Write srccf register */
+	hw_write_20kx(hw, SRC_CF+idx*0x100, 0x0);
+
+	if (ctl->dirty.bf.ccr) {
+		hw_write_20kx(hw, SRC_CCR+idx*0x100, ctl->ccr);
+		ctl->dirty.bf.ccr = 0;
+	}
+	if (ctl->dirty.bf.ctl) {
+		hw_write_20kx(hw, SRC_CTL+idx*0x100, ctl->ctl);
+		ctl->dirty.bf.ctl = 0;
+	}
+
+	return 0;
+}
+
+static int src_get_ca(struct hw *hw, unsigned int idx, void *blk)
+{
+	struct src_rsc_ctrl_blk *ctl = blk;
+
+	ctl->ca = hw_read_20kx(hw, SRC_CA+idx*0x100);
+	ctl->dirty.bf.ca = 0;
+
+	return get_field(ctl->ca, SRCCA_CA);
+}
+
+static unsigned int src_get_dirty(void *blk)
+{
+	return ((struct src_rsc_ctrl_blk *)blk)->dirty.data;
+}
+
+static unsigned int src_dirty_conj_mask(void)
+{
+	return 0x20;
+}
+
+static int src_mgr_enbs_src(void *blk, unsigned int idx)
+{
+	((struct src_mgr_ctrl_blk *)blk)->enbsa |= (0x1 << ((idx%128)/4));
+	((struct src_mgr_ctrl_blk *)blk)->dirty.bf.enbsa = 1;
+	((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] |= (0x1 << (idx%32));
+	return 0;
+}
+
+static int src_mgr_enb_src(void *blk, unsigned int idx)
+{
+	((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] |= (0x1 << (idx%32));
+	((struct src_mgr_ctrl_blk *)blk)->dirty.data |= (0x1 << (idx/32));
+	return 0;
+}
+
+static int src_mgr_dsb_src(void *blk, unsigned int idx)
+{
+	((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] &= ~(0x1 << (idx%32));
+	((struct src_mgr_ctrl_blk *)blk)->dirty.data |= (0x1 << (idx/32));
+	return 0;
+}
+
+static int src_mgr_commit_write(struct hw *hw, void *blk)
+{
+	struct src_mgr_ctrl_blk *ctl = blk;
+	int i;
+	unsigned int ret;
+
+	if (ctl->dirty.bf.enbsa) {
+		do {
+			ret = hw_read_20kx(hw, SRC_ENBSTAT);
+		} while (ret & 0x1);
+		hw_write_20kx(hw, SRC_ENBSA, ctl->enbsa);
+		ctl->dirty.bf.enbsa = 0;
+	}
+	for (i = 0; i < 8; i++) {
+		if ((ctl->dirty.data & (0x1 << i))) {
+			hw_write_20kx(hw, SRC_ENB+(i*0x100), ctl->enb[i]);
+			ctl->dirty.data &= ~(0x1 << i);
+		}
+	}
+
+	return 0;
+}
+
+static int src_mgr_get_ctrl_blk(void **rblk)
+{
+	struct src_mgr_ctrl_blk *blk;
+
+	*rblk = NULL;
+	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+	if (NULL == blk)
+		return -ENOMEM;
+
+	*rblk = blk;
+
+	return 0;
+}
+
+static int src_mgr_put_ctrl_blk(void *blk)
+{
+	kfree(blk);
+
+	return 0;
+}
+
+static int srcimp_mgr_get_ctrl_blk(void **rblk)
+{
+	struct srcimp_mgr_ctrl_blk *blk;
+
+	*rblk = NULL;
+	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+	if (NULL == blk)
+		return -ENOMEM;
+
+	*rblk = blk;
+
+	return 0;
+}
+
+static int srcimp_mgr_put_ctrl_blk(void *blk)
+{
+	kfree(blk);
+
+	return 0;
+}
+
+static int srcimp_mgr_set_imaparc(void *blk, unsigned int slot)
+{
+	struct srcimp_mgr_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srcimap.srcaim, SRCAIM_ARC, slot);
+	ctl->dirty.bf.srcimap = 1;
+	return 0;
+}
+
+static int srcimp_mgr_set_imapuser(void *blk, unsigned int user)
+{
+	struct srcimp_mgr_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srcimap.srcaim, SRCAIM_SRC, user);
+	ctl->dirty.bf.srcimap = 1;
+	return 0;
+}
+
+static int srcimp_mgr_set_imapnxt(void *blk, unsigned int next)
+{
+	struct srcimp_mgr_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srcimap.srcaim, SRCAIM_NXT, next);
+	ctl->dirty.bf.srcimap = 1;
+	return 0;
+}
+
+static int srcimp_mgr_set_imapaddr(void *blk, unsigned int addr)
+{
+	((struct srcimp_mgr_ctrl_blk *)blk)->srcimap.idx = addr;
+	((struct srcimp_mgr_ctrl_blk *)blk)->dirty.bf.srcimap = 1;
+	return 0;
+}
+
+static int srcimp_mgr_commit_write(struct hw *hw, void *blk)
+{
+	struct srcimp_mgr_ctrl_blk *ctl = blk;
+
+	if (ctl->dirty.bf.srcimap) {
+		hw_write_20kx(hw, SRC_IMAP+ctl->srcimap.idx*0x100,
+						ctl->srcimap.srcaim);
+		ctl->dirty.bf.srcimap = 0;
+	}
+
+	return 0;
+}
+
+/*
+ * AMIXER control block definitions.
+ */
+
+#define AMOPLO_M	0x00000003
+#define AMOPLO_IV	0x00000004
+#define AMOPLO_X	0x0003FFF0
+#define AMOPLO_Y	0xFFFC0000
+
+#define AMOPHI_SADR	0x000000FF
+#define AMOPHI_SE	0x80000000
+
+/* AMIXER resource register dirty flags */
+union amixer_dirty {
+	struct {
+		u16 amoplo:1;
+		u16 amophi:1;
+		u16 rsv:14;
+	} bf;
+	u16 data;
+};
+
+/* AMIXER resource control block */
+struct amixer_rsc_ctrl_blk {
+	unsigned int		amoplo;
+	unsigned int		amophi;
+	union amixer_dirty	dirty;
+};
+
+static int amixer_set_mode(void *blk, unsigned int mode)
+{
+	struct amixer_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->amoplo, AMOPLO_M, mode);
+	ctl->dirty.bf.amoplo = 1;
+	return 0;
+}
+
+static int amixer_set_iv(void *blk, unsigned int iv)
+{
+	struct amixer_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->amoplo, AMOPLO_IV, iv);
+	ctl->dirty.bf.amoplo = 1;
+	return 0;
+}
+
+static int amixer_set_x(void *blk, unsigned int x)
+{
+	struct amixer_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->amoplo, AMOPLO_X, x);
+	ctl->dirty.bf.amoplo = 1;
+	return 0;
+}
+
+static int amixer_set_y(void *blk, unsigned int y)
+{
+	struct amixer_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->amoplo, AMOPLO_Y, y);
+	ctl->dirty.bf.amoplo = 1;
+	return 0;
+}
+
+static int amixer_set_sadr(void *blk, unsigned int sadr)
+{
+	struct amixer_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->amophi, AMOPHI_SADR, sadr);
+	ctl->dirty.bf.amophi = 1;
+	return 0;
+}
+
+static int amixer_set_se(void *blk, unsigned int se)
+{
+	struct amixer_rsc_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->amophi, AMOPHI_SE, se);
+	ctl->dirty.bf.amophi = 1;
+	return 0;
+}
+
+static int amixer_set_dirty(void *blk, unsigned int flags)
+{
+	((struct amixer_rsc_ctrl_blk *)blk)->dirty.data = (flags & 0xffff);
+	return 0;
+}
+
+static int amixer_set_dirty_all(void *blk)
+{
+	((struct amixer_rsc_ctrl_blk *)blk)->dirty.data = ~(0x0);
+	return 0;
+}
+
+static int amixer_commit_write(struct hw *hw, unsigned int idx, void *blk)
+{
+	struct amixer_rsc_ctrl_blk *ctl = blk;
+
+	if (ctl->dirty.bf.amoplo || ctl->dirty.bf.amophi) {
+		hw_write_20kx(hw, MIXER_AMOPLO+idx*8, ctl->amoplo);
+		ctl->dirty.bf.amoplo = 0;
+		hw_write_20kx(hw, MIXER_AMOPHI+idx*8, ctl->amophi);
+		ctl->dirty.bf.amophi = 0;
+	}
+
+	return 0;
+}
+
+static int amixer_get_y(void *blk)
+{
+	struct amixer_rsc_ctrl_blk *ctl = blk;
+
+	return get_field(ctl->amoplo, AMOPLO_Y);
+}
+
+static unsigned int amixer_get_dirty(void *blk)
+{
+	return ((struct amixer_rsc_ctrl_blk *)blk)->dirty.data;
+}
+
+static int amixer_rsc_get_ctrl_blk(void **rblk)
+{
+	struct amixer_rsc_ctrl_blk *blk;
+
+	*rblk = NULL;
+	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+	if (NULL == blk)
+		return -ENOMEM;
+
+	*rblk = blk;
+
+	return 0;
+}
+
+static int amixer_rsc_put_ctrl_blk(void *blk)
+{
+	kfree(blk);
+
+	return 0;
+}
+
+static int amixer_mgr_get_ctrl_blk(void **rblk)
+{
+	*rblk = NULL;
+
+	return 0;
+}
+
+static int amixer_mgr_put_ctrl_blk(void *blk)
+{
+	return 0;
+}
+
+/*
+ * DAIO control block definitions.
+ */
+
+/* Receiver Sample Rate Tracker Control register */
+#define SRTCTL_SRCO	0x000000FF
+#define SRTCTL_SRCM	0x0000FF00
+#define SRTCTL_RSR	0x00030000
+#define SRTCTL_DRAT	0x00300000
+#define SRTCTL_EC	0x01000000
+#define SRTCTL_ET	0x10000000
+
+/* DAIO Receiver register dirty flags */
+union dai_dirty {
+	struct {
+		u16 srt:1;
+		u16 rsv:15;
+	} bf;
+	u16 data;
+};
+
+/* DAIO Receiver control block */
+struct dai_ctrl_blk {
+	unsigned int	srt;
+	union dai_dirty	dirty;
+};
+
+/* Audio Input Mapper RAM */
+#define AIM_ARC		0x00000FFF
+#define AIM_NXT		0x007F0000
+
+struct daoimap {
+	unsigned int aim;
+	unsigned int idx;
+};
+
+/* Audio Transmitter Control and Status register */
+#define ATXCTL_EN	0x00000001
+#define ATXCTL_MODE	0x00000010
+#define ATXCTL_CD	0x00000020
+#define ATXCTL_RAW	0x00000100
+#define ATXCTL_MT	0x00000200
+#define ATXCTL_NUC	0x00003000
+#define ATXCTL_BEN	0x00010000
+#define ATXCTL_BMUX	0x00700000
+#define ATXCTL_B24	0x01000000
+#define ATXCTL_CPF	0x02000000
+#define ATXCTL_RIV	0x10000000
+#define ATXCTL_LIV	0x20000000
+#define ATXCTL_RSAT	0x40000000
+#define ATXCTL_LSAT	0x80000000
+
+/* XDIF Transmitter register dirty flags */
+union dao_dirty {
+	struct {
+		u16 atxcsl:1;
+		u16 rsv:15;
+	} bf;
+	u16 data;
+};
+
+/* XDIF Transmitter control block */
+struct dao_ctrl_blk {
+	/* XDIF Transmitter Channel Status Low Register */
+	unsigned int	atxcsl;
+	union dao_dirty	dirty;
+};
+
+/* Audio Receiver Control register */
+#define ARXCTL_EN	0x00000001
+
+/* DAIO manager register dirty flags */
+union daio_mgr_dirty {
+	struct {
+		u32 atxctl:8;
+		u32 arxctl:8;
+		u32 daoimap:1;
+		u32 rsv:15;
+	} bf;
+	u32 data;
+};
+
+/* DAIO manager control block */
+struct daio_mgr_ctrl_blk {
+	struct daoimap		daoimap;
+	unsigned int		txctl[8];
+	unsigned int		rxctl[8];
+	union daio_mgr_dirty	dirty;
+};
+
+static int dai_srt_set_srco(void *blk, unsigned int src)
+{
+	struct dai_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srt, SRTCTL_SRCO, src);
+	ctl->dirty.bf.srt = 1;
+	return 0;
+}
+
+static int dai_srt_set_srcm(void *blk, unsigned int src)
+{
+	struct dai_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srt, SRTCTL_SRCM, src);
+	ctl->dirty.bf.srt = 1;
+	return 0;
+}
+
+static int dai_srt_set_rsr(void *blk, unsigned int rsr)
+{
+	struct dai_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srt, SRTCTL_RSR, rsr);
+	ctl->dirty.bf.srt = 1;
+	return 0;
+}
+
+static int dai_srt_set_drat(void *blk, unsigned int drat)
+{
+	struct dai_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srt, SRTCTL_DRAT, drat);
+	ctl->dirty.bf.srt = 1;
+	return 0;
+}
+
+static int dai_srt_set_ec(void *blk, unsigned int ec)
+{
+	struct dai_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srt, SRTCTL_EC, ec ? 1 : 0);
+	ctl->dirty.bf.srt = 1;
+	return 0;
+}
+
+static int dai_srt_set_et(void *blk, unsigned int et)
+{
+	struct dai_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->srt, SRTCTL_ET, et ? 1 : 0);
+	ctl->dirty.bf.srt = 1;
+	return 0;
+}
+
+static int dai_commit_write(struct hw *hw, unsigned int idx, void *blk)
+{
+	struct dai_ctrl_blk *ctl = blk;
+
+	if (ctl->dirty.bf.srt) {
+		hw_write_20kx(hw, AUDIO_IO_RX_SRT_CTL+0x40*idx, ctl->srt);
+		ctl->dirty.bf.srt = 0;
+	}
+
+	return 0;
+}
+
+static int dai_get_ctrl_blk(void **rblk)
+{
+	struct dai_ctrl_blk *blk;
+
+	*rblk = NULL;
+	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+	if (NULL == blk)
+		return -ENOMEM;
+
+	*rblk = blk;
+
+	return 0;
+}
+
+static int dai_put_ctrl_blk(void *blk)
+{
+	kfree(blk);
+
+	return 0;
+}
+
+static int dao_set_spos(void *blk, unsigned int spos)
+{
+	((struct dao_ctrl_blk *)blk)->atxcsl = spos;
+	((struct dao_ctrl_blk *)blk)->dirty.bf.atxcsl = 1;
+	return 0;
+}
+
+static int dao_commit_write(struct hw *hw, unsigned int idx, void *blk)
+{
+	struct dao_ctrl_blk *ctl = blk;
+
+	if (ctl->dirty.bf.atxcsl) {
+		if (idx < 4) {
+			/* S/PDIF SPOSx */
+			hw_write_20kx(hw, AUDIO_IO_TX_CSTAT_L+0x40*idx,
+							ctl->atxcsl);
+		}
+		ctl->dirty.bf.atxcsl = 0;
+	}
+
+	return 0;
+}
+
+static int dao_get_spos(void *blk, unsigned int *spos)
+{
+	*spos = ((struct dao_ctrl_blk *)blk)->atxcsl;
+	return 0;
+}
+
+static int dao_get_ctrl_blk(void **rblk)
+{
+	struct dao_ctrl_blk *blk;
+
+	*rblk = NULL;
+	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+	if (NULL == blk)
+		return -ENOMEM;
+
+	*rblk = blk;
+
+	return 0;
+}
+
+static int dao_put_ctrl_blk(void *blk)
+{
+	kfree(blk);
+
+	return 0;
+}
+
+static int daio_mgr_enb_dai(void *blk, unsigned int idx)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->rxctl[idx], ARXCTL_EN, 1);
+	ctl->dirty.bf.arxctl |= (0x1 << idx);
+	return 0;
+}
+
+static int daio_mgr_dsb_dai(void *blk, unsigned int idx)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->rxctl[idx], ARXCTL_EN, 0);
+
+	ctl->dirty.bf.arxctl |= (0x1 << idx);
+	return 0;
+}
+
+static int daio_mgr_enb_dao(void *blk, unsigned int idx)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->txctl[idx], ATXCTL_EN, 1);
+	ctl->dirty.bf.atxctl |= (0x1 << idx);
+	return 0;
+}
+
+static int daio_mgr_dsb_dao(void *blk, unsigned int idx)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->txctl[idx], ATXCTL_EN, 0);
+	ctl->dirty.bf.atxctl |= (0x1 << idx);
+	return 0;
+}
+
+static int daio_mgr_dao_init(void *blk, unsigned int idx, unsigned int conf)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+
+	if (idx < 4) {
+		/* S/PDIF output */
+		switch ((conf & 0x7)) {
+		case 1:
+			set_field(&ctl->txctl[idx], ATXCTL_NUC, 0);
+			break;
+		case 2:
+			set_field(&ctl->txctl[idx], ATXCTL_NUC, 1);
+			break;
+		case 4:
+			set_field(&ctl->txctl[idx], ATXCTL_NUC, 2);
+			break;
+		case 8:
+			set_field(&ctl->txctl[idx], ATXCTL_NUC, 3);
+			break;
+		default:
+			break;
+		}
+		/* CDIF */
+		set_field(&ctl->txctl[idx], ATXCTL_CD, (!(conf & 0x7)));
+		/* Non-audio */
+		set_field(&ctl->txctl[idx], ATXCTL_LIV, (conf >> 4) & 0x1);
+		/* Non-audio */
+		set_field(&ctl->txctl[idx], ATXCTL_RIV, (conf >> 4) & 0x1);
+		set_field(&ctl->txctl[idx], ATXCTL_RAW,
+			  ((conf >> 3) & 0x1) ? 0 : 0);
+		ctl->dirty.bf.atxctl |= (0x1 << idx);
+	} else {
+		/* I2S output */
+		/*idx %= 4; */
+	}
+	return 0;
+}
+
+static int daio_mgr_set_imaparc(void *blk, unsigned int slot)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->daoimap.aim, AIM_ARC, slot);
+	ctl->dirty.bf.daoimap = 1;
+	return 0;
+}
+
+static int daio_mgr_set_imapnxt(void *blk, unsigned int next)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+
+	set_field(&ctl->daoimap.aim, AIM_NXT, next);
+	ctl->dirty.bf.daoimap = 1;
+	return 0;
+}
+
+static int daio_mgr_set_imapaddr(void *blk, unsigned int addr)
+{
+	((struct daio_mgr_ctrl_blk *)blk)->daoimap.idx = addr;
+	((struct daio_mgr_ctrl_blk *)blk)->dirty.bf.daoimap = 1;
+	return 0;
+}
+
+static int daio_mgr_commit_write(struct hw *hw, void *blk)
+{
+	struct daio_mgr_ctrl_blk *ctl = blk;
+	unsigned int data;
+	int i;
+
+	for (i = 0; i < 8; i++) {
+		if ((ctl->dirty.bf.atxctl & (0x1 << i))) {
+			data = ctl->txctl[i];
+			hw_write_20kx(hw, (AUDIO_IO_TX_CTL+(0x40*i)), data);
+			ctl->dirty.bf.atxctl &= ~(0x1 << i);
+			mdelay(1);
+		}
+		if ((ctl->dirty.bf.arxctl & (0x1 << i))) {
+			data = ctl->rxctl[i];
+			hw_write_20kx(hw, (AUDIO_IO_RX_CTL+(0x40*i)), data);
+			ctl->dirty.bf.arxctl &= ~(0x1 << i);
+			mdelay(1);
+		}
+	}
+	if (ctl->dirty.bf.daoimap) {
+		hw_write_20kx(hw, AUDIO_IO_AIM+ctl->daoimap.idx*4,
+						ctl->daoimap.aim);
+		ctl->dirty.bf.daoimap = 0;
+	}
+
+	return 0;
+}
+
+static int daio_mgr_get_ctrl_blk(struct hw *hw, void **rblk)
+{
+	struct daio_mgr_ctrl_blk *blk;
+	int i;
+
+	*rblk = NULL;
+	blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+	if (NULL == blk)
+		return -ENOMEM;
+
+	for (i = 0; i < 8; i++) {
+		blk->txctl[i] = hw_read_20kx(hw, AUDIO_IO_TX_CTL+(0x40*i));
+		blk->rxctl[i] = hw_read_20kx(hw, AUDIO_IO_RX_CTL+(0x40*i));
+	}
+
+	*rblk = blk;
+
+	return 0;
+}
+
+static int daio_mgr_put_ctrl_blk(void *blk)
+{
+	kfree(blk);
+
+	return 0;
+}
+
+/* Card hardware initialization block */
+struct dac_conf {
+	unsigned int msr; /* master sample rate in rsrs */
+};
+
+struct adc_conf {
+	unsigned int msr; 	/* master sample rate in rsrs */
+	unsigned char input; 	/* the input source of ADC */
+	unsigned char mic20db; 	/* boost mic by 20db if input is microphone */
+};
+
+struct daio_conf {
+	unsigned int msr; /* master sample rate in rsrs */
+};
+
+struct trn_conf {
+	unsigned long vm_pgt_phys;
+};
+
+static int hw_daio_init(struct hw *hw, const struct daio_conf *info)
+{
+	u32 data;
+	int i;
+
+	/* Program I2S with proper sample rate and enable the correct I2S
+	 * channel. ED(0/8/16/24): Enable all I2S/I2X master clock output */
+	if (1 == info->msr) {
+		hw_write_20kx(hw, AUDIO_IO_MCLK, 0x01010101);
+		hw_write_20kx(hw, AUDIO_IO_TX_BLRCLK, 0x01010101);
+		hw_write_20kx(hw, AUDIO_IO_RX_BLRCLK, 0);
+	} else if (2 == info->msr) {
+		hw_write_20kx(hw, AUDIO_IO_MCLK, 0x11111111);
+		/* Specify all playing 96khz
+		 * EA [0]	- Enabled
+		 * RTA [4:5]	- 96kHz
+		 * EB [8]	- Enabled
+		 * RTB [12:13]	- 96kHz
+		 * EC [16]	- Enabled
+		 * RTC [20:21]	- 96kHz
+		 * ED [24]	- Enabled
+		 * RTD [28:29]	- 96kHz */
+		hw_write_20kx(hw, AUDIO_IO_TX_BLRCLK, 0x11111111);
+		hw_write_20kx(hw, AUDIO_IO_RX_BLRCLK, 0);
+	} else {
+		printk(KERN_ALERT "ctxfi: ERROR!!! Invalid sampling rate!!!\n");
+		return -EINVAL;
+	}
+
+	for (i = 0; i < 8; i++) {
+		if (i <= 3) {
+			/* 1st 3 channels are SPDIFs (SB0960) */
+			if (i == 3)
+				data = 0x1001001;
+			else
+				data = 0x1000001;
+
+			hw_write_20kx(hw, (AUDIO_IO_TX_CTL+(0x40*i)), data);
+			hw_write_20kx(hw, (AUDIO_IO_RX_CTL+(0x40*i)), data);
+
+			/* Initialize the SPDIF Out Channel status registers.
+			 * The value specified here is based on the typical
+			 * values provided in the specification, namely: Clock
+			 * Accuracy of 1000ppm, Sample Rate of 48KHz,
+			 * unspecified source number, Generation status = 1,
+			 * Category code = 0x12 (Digital Signal Mixer),
+			 * Mode = 0, Emph = 0, Copy Permitted, AN = 0
+			 * (indicating that we're transmitting digital audio,
+			 * and the Professional Use bit is 0. */
+
+			hw_write_20kx(hw, AUDIO_IO_TX_CSTAT_L+(0x40*i),
+					0x02109204); /* Default to 48kHz */
+
+			hw_write_20kx(hw, AUDIO_IO_TX_CSTAT_H+(0x40*i), 0x0B);
+		} else {
+			/* Next 5 channels are I2S (SB0960) */
+			data = 0x11;
+			hw_write_20kx(hw, AUDIO_IO_RX_CTL+(0x40*i), data);
+			if (2 == info->msr) {
+				/* Four channels per sample period */
+				data |= 0x1000;
+			}
+			hw_write_20kx(hw, AUDIO_IO_TX_CTL+(0x40*i), data);
+		}
+	}
+
+	return 0;
+}
+
+/* TRANSPORT operations */
+static int hw_trn_init(struct hw *hw, const struct trn_conf *info)
+{
+	u32 vmctl, data;
+	u32 ptp_phys_low, ptp_phys_high;
+	int i;
+
+	/* Set up device page table */
+	if ((~0UL) == info->vm_pgt_phys) {
+		printk(KERN_ALERT "ctxfi: "
+		       "Wrong device page table page address!!!\n");
+		return -1;
+	}
+
+	vmctl = 0x80000C0F;  /* 32-bit, 4k-size page */
+	ptp_phys_low = (u32)info->vm_pgt_phys;
+	ptp_phys_high = upper_32_bits(info->vm_pgt_phys);
+	if (sizeof(void *) == 8) /* 64bit address */
+		vmctl |= (3 << 8);
+	/* Write page table physical address to all PTPAL registers */
+	for (i = 0; i < 64; i++) {
+		hw_write_20kx(hw, VMEM_PTPAL+(16*i), ptp_phys_low);
+		hw_write_20kx(hw, VMEM_PTPAH+(16*i), ptp_phys_high);
+	}
+	/* Enable virtual memory transfer */
+	hw_write_20kx(hw, VMEM_CTL, vmctl);
+	/* Enable transport bus master and queueing of request */
+	hw_write_20kx(hw, TRANSPORT_CTL, 0x03);
+	hw_write_20kx(hw, TRANSPORT_INT, 0x200c01);
+	/* Enable transport ring */
+	data = hw_read_20kx(hw, TRANSPORT_ENB);
+	hw_write_20kx(hw, TRANSPORT_ENB, (data | 0x03));
+
+	return 0;
+}
+
+/* Card initialization */
+#define GCTL_AIE	0x00000001
+#define GCTL_UAA	0x00000002
+#define GCTL_DPC	0x00000004
+#define GCTL_DBP	0x00000008
+#define GCTL_ABP	0x00000010
+#define GCTL_TBP	0x00000020
+#define GCTL_SBP	0x00000040
+#define GCTL_FBP	0x00000080
+#define GCTL_ME		0x00000100
+#define GCTL_AID	0x00001000
+
+#define PLLCTL_SRC	0x00000007
+#define PLLCTL_SPE	0x00000008
+#define PLLCTL_RD	0x000000F0
+#define PLLCTL_FD	0x0001FF00
+#define PLLCTL_OD	0x00060000
+#define PLLCTL_B	0x00080000
+#define PLLCTL_AS	0x00100000
+#define PLLCTL_LF	0x03E00000
+#define PLLCTL_SPS	0x1C000000
+#define PLLCTL_AD	0x60000000
+
+#define PLLSTAT_CCS	0x00000007
+#define PLLSTAT_SPL	0x00000008
+#define PLLSTAT_CRD	0x000000F0
+#define PLLSTAT_CFD	0x0001FF00
+#define PLLSTAT_SL	0x00020000
+#define PLLSTAT_FAS	0x00040000
+#define PLLSTAT_B	0x00080000
+#define PLLSTAT_PD	0x00100000
+#define PLLSTAT_OCA	0x00200000
+#define PLLSTAT_NCA	0x00400000
+
+static int hw_pll_init(struct hw *hw, unsigned int rsr)
+{
+	unsigned int pllenb;
+	unsigned int pllctl;
+	unsigned int pllstat;
+	int i;
+
+	pllenb = 0xB;
+	hw_write_20kx(hw, PLL_ENB, pllenb);
+	pllctl = 0x20D00000;
+	set_field(&pllctl, PLLCTL_FD, 16 - 4);
+	hw_write_20kx(hw, PLL_CTL, pllctl);
+	mdelay(40);
+	pllctl = hw_read_20kx(hw, PLL_CTL);
+	set_field(&pllctl, PLLCTL_B, 0);
+	if (48000 == rsr) {
+		set_field(&pllctl, PLLCTL_FD, 16 - 2);
+		set_field(&pllctl, PLLCTL_RD, 1 - 1);
+	} else { /* 44100 */
+		set_field(&pllctl, PLLCTL_FD, 147 - 2);
+		set_field(&pllctl, PLLCTL_RD, 10 - 1);
+	}
+	hw_write_20kx(hw, PLL_CTL, pllctl);
+	mdelay(40);
+	for (i = 0; i < 1000; i++) {
+		pllstat = hw_read_20kx(hw, PLL_STAT);
+		if (get_field(pllstat, PLLSTAT_PD))
+			continue;
+
+		if (get_field(pllstat, PLLSTAT_B) !=
+					get_field(pllctl, PLLCTL_B))
+			continue;
+
+		if (get_field(pllstat, PLLSTAT_CCS) !=
+					get_field(pllctl, PLLCTL_SRC))
+			continue;
+
+		if (get_field(pllstat, PLLSTAT_CRD) !=
+					get_field(pllctl, PLLCTL_RD))
+			continue;
+
+		if (get_field(pllstat, PLLSTAT_CFD) !=
+					get_field(pllctl, PLLCTL_FD))
+			continue;
+
+		break;
+	}
+	if (i >= 1000) {
+		printk(KERN_ALERT "ctxfi: PLL initialization failed!!!\n");
+		return -EBUSY;
+	}
+
+	return 0;
+}
+
+static int hw_auto_init(struct hw *hw)
+{
+	unsigned int gctl;
+	int i;
+
+	gctl = hw_read_20kx(hw, GLOBAL_CNTL_GCTL);
+	set_field(&gctl, GCTL_AIE, 0);
+	hw_write_20kx(hw, GLOBAL_CNTL_GCTL, gctl);
+	set_field(&gctl, GCTL_AIE, 1);
+	hw_write_20kx(hw, GLOBAL_CNTL_GCTL, gctl);
+	mdelay(10);
+	for (i = 0; i < 400000; i++) {
+		gctl = hw_read_20kx(hw, GLOBAL_CNTL_GCTL);
+		if (get_field(gctl, GCTL_AID))
+			break;
+	}
+	if (!get_field(gctl, GCTL_AID)) {
+		printk(KERN_ALERT "ctxfi: Card Auto-init failed!!!\n");
+		return -EBUSY;
+	}
+
+	return 0;
+}
+
+/* DAC operations */
+
+#define CS4382_MC1 		0x1
+#define CS4382_MC2 		0x2
+#define CS4382_MC3		0x3
+#define CS4382_FC		0x4
+#define CS4382_IC		0x5
+#define CS4382_XC1		0x6
+#define CS4382_VCA1 		0x7
+#define CS4382_VCB1 		0x8
+#define CS4382_XC2		0x9
+#define CS4382_VCA2 		0xA
+#define CS4382_VCB2 		0xB
+#define CS4382_XC3		0xC
+#define CS4382_VCA3		0xD
+#define CS4382_VCB3		0xE
+#define CS4382_XC4 		0xF
+#define CS4382_VCA4 		0x10
+#define CS4382_VCB4 		0x11
+#define CS4382_CREV 		0x12
+
+/* I2C status */
+#define STATE_LOCKED		0x00
+#define STATE_UNLOCKED		0xAA
+#define DATA_READY		0x800000    /* Used with I2C_IF_STATUS */
+#define DATA_ABORT		0x10000     /* Used with I2C_IF_STATUS */
+
+#define I2C_STATUS_DCM	0x00000001
+#define I2C_STATUS_BC	0x00000006
+#define I2C_STATUS_APD	0x00000008
+#define I2C_STATUS_AB	0x00010000
+#define I2C_STATUS_DR	0x00800000
+
+#define I2C_ADDRESS_PTAD	0x0000FFFF
+#define I2C_ADDRESS_SLAD	0x007F0000
+
+struct regs_cs4382 {
+	u32 mode_control_1;
+	u32 mode_control_2;
+	u32 mode_control_3;
+
+	u32 filter_control;
+	u32 invert_control;
+
+	u32 mix_control_P1;
+	u32 vol_control_A1;
+	u32 vol_control_B1;
+
+	u32 mix_control_P2;
+	u32 vol_control_A2;
+	u32 vol_control_B2;
+
+	u32 mix_control_P3;
+	u32 vol_control_A3;
+	u32 vol_control_B3;
+
+	u32 mix_control_P4;
+	u32 vol_control_A4;
+	u32 vol_control_B4;
+};
+
+static int hw20k2_i2c_unlock_full_access(struct hw *hw)
+{
+	u8 UnlockKeySequence_FLASH_FULLACCESS_MODE[2] =  {0xB3, 0xD4};
+
+	/* Send keys for forced BIOS mode */
+	hw_write_20kx(hw, I2C_IF_WLOCK,
+			UnlockKeySequence_FLASH_FULLACCESS_MODE[0]);
+	hw_write_20kx(hw, I2C_IF_WLOCK,
+			UnlockKeySequence_FLASH_FULLACCESS_MODE[1]);
+	/* Check whether the chip is unlocked */
+	if (hw_read_20kx(hw, I2C_IF_WLOCK) == STATE_UNLOCKED)
+		return 0;
+
+	return -1;
+}
+
+static int hw20k2_i2c_lock_chip(struct hw *hw)
+{
+	/* Write twice */
+	hw_write_20kx(hw, I2C_IF_WLOCK, STATE_LOCKED);
+	hw_write_20kx(hw, I2C_IF_WLOCK, STATE_LOCKED);
+	if (hw_read_20kx(hw, I2C_IF_WLOCK) == STATE_LOCKED)
+		return 0;
+
+	return -1;
+}
+
+static int hw20k2_i2c_init(struct hw *hw, u8 dev_id, u8 addr_size, u8 data_size)
+{
+	struct hw20k2 *hw20k2 = (struct hw20k2 *)hw;
+	int err;
+	unsigned int i2c_status;
+	unsigned int i2c_addr;
+
+	err = hw20k2_i2c_unlock_full_access(hw);
+	if (err < 0)
+		return err;
+
+	hw20k2->addr_size = addr_size;
+	hw20k2->data_size = data_size;
+	hw20k2->dev_id = dev_id;
+
+	i2c_addr = 0;
+	set_field(&i2c_addr, I2C_ADDRESS_SLAD, dev_id);
+
+	hw_write_20kx(hw, I2C_IF_ADDRESS, i2c_addr);
+
+	i2c_status = hw_read_20kx(hw, I2C_IF_STATUS);
+
+	set_field(&i2c_status, I2C_STATUS_DCM, 1); /* Direct control mode */
+
+	hw_write_20kx(hw, I2C_IF_STATUS, i2c_status);
+
+	return 0;
+}
+
+static int hw20k2_i2c_uninit(struct hw *hw)
+{
+	unsigned int i2c_status;
+	unsigned int i2c_addr;
+
+	i2c_addr = 0;
+	set_field(&i2c_addr, I2C_ADDRESS_SLAD, 0x57); /* I2C id */
+
+	hw_write_20kx(hw, I2C_IF_ADDRESS, i2c_addr);
+
+	i2c_status = hw_read_20kx(hw, I2C_IF_STATUS);
+
+	set_field(&i2c_status, I2C_STATUS_DCM, 0); /* I2C mode */
+
+	hw_write_20kx(hw, I2C_IF_STATUS, i2c_status);
+
+	return hw20k2_i2c_lock_chip(hw);
+}
+
+static int hw20k2_i2c_wait_data_ready(struct hw *hw)
+{
+	int i = 0x400000;
+	unsigned int ret;
+
+	do {
+		ret = hw_read_20kx(hw, I2C_IF_STATUS);
+	} while ((!(ret & DATA_READY)) && --i);
+
+	return i;
+}
+
+static int hw20k2_i2c_read(struct hw *hw, u16 addr, u32 *datap)
+{
+	struct hw20k2 *hw20k2 = (struct hw20k2 *)hw;
+	unsigned int i2c_status;
+
+	i2c_status = hw_read_20kx(hw, I2C_IF_STATUS);
+	set_field(&i2c_status, I2C_STATUS_BC,
+		  (4 == hw20k2->addr_size) ? 0 : hw20k2->addr_size);
+	hw_write_20kx(hw, I2C_IF_STATUS, i2c_status);
+	if (!hw20k2_i2c_wait_data_ready(hw))
+		return -1;
+
+	hw_write_20kx(hw, I2C_IF_WDATA, addr);
+	if (!hw20k2_i2c_wait_data_ready(hw))
+		return -1;
+
+	/* Force a read operation */
+	hw_write_20kx(hw, I2C_IF_RDATA, 0);
+	if (!hw20k2_i2c_wait_data_ready(hw))
+		return -1;
+
+	*datap = hw_read_20kx(hw, I2C_IF_RDATA);
+
+	return 0;
+}
+
+static int hw20k2_i2c_write(struct hw *hw, u16 addr, u32 data)
+{
+	struct hw20k2 *hw20k2 = (struct hw20k2 *)hw;
+	unsigned int i2c_data = (data << (hw20k2->addr_size * 8)) | addr;
+	unsigned int i2c_status;
+
+	i2c_status = hw_read_20kx(hw, I2C_IF_STATUS);
+
+	set_field(&i2c_status, I2C_STATUS_BC,
+		  (4 == (hw20k2->addr_size + hw20k2->data_size)) ?
+		  0 : (hw20k2->addr_size + hw20k2->data_size));
+
+	hw_write_20kx(hw, I2C_IF_STATUS, i2c_status);
+	hw20k2_i2c_wait_data_ready(hw);
+	/* Dummy write to trigger the write oprtation */
+	hw_write_20kx(hw, I2C_IF_WDATA, 0);
+	hw20k2_i2c_wait_data_ready(hw);
+
+	/* This is the real data */
+	hw_write_20kx(hw, I2C_IF_WDATA, i2c_data);
+	hw20k2_i2c_wait_data_ready(hw);
+
+	return 0;
+}
+
+static int hw_dac_init(struct hw *hw, const struct dac_conf *info)
+{
+	int err;
+	u32 data;
+	int i;
+	struct regs_cs4382 cs_read = {0};
+	struct regs_cs4382 cs_def = {
+				   0x00000001,  /* Mode Control 1 */
+				   0x00000000,  /* Mode Control 2 */
+				   0x00000084,  /* Mode Control 3 */
+				   0x00000000,  /* Filter Control */
+				   0x00000000,  /* Invert Control */
+				   0x00000024,  /* Mixing Control Pair 1 */
+				   0x00000000,  /* Vol Control A1 */
+				   0x00000000,  /* Vol Control B1 */
+				   0x00000024,  /* Mixing Control Pair 2 */
+				   0x00000000,  /* Vol Control A2 */
+				   0x00000000,  /* Vol Control B2 */
+				   0x00000024,  /* Mixing Control Pair 3 */
+				   0x00000000,  /* Vol Control A3 */
+				   0x00000000,  /* Vol Control B3 */
+				   0x00000024,  /* Mixing Control Pair 4 */
+				   0x00000000,  /* Vol Control A4 */
+				   0x00000000   /* Vol Control B4 */
+				 };
+
+	/* Set DAC reset bit as output */
+	data = hw_read_20kx(hw, GPIO_CTRL);
+	data |= 0x02;
+	hw_write_20kx(hw, GPIO_CTRL, data);
+
+	err = hw20k2_i2c_init(hw, 0x18, 1, 1);
+	if (err < 0)
+		goto End;
+
+	for (i = 0; i < 2; i++) {
+		/* Reset DAC twice just in-case the chip
+		 * didn't initialized properly */
+		data = hw_read_20kx(hw, GPIO_DATA);
+		/* GPIO data bit 1 */
+		data &= 0xFFFFFFFD;
+		hw_write_20kx(hw, GPIO_DATA, data);
+		mdelay(10);
+		data |= 0x2;
+		hw_write_20kx(hw, GPIO_DATA, data);
+		mdelay(50);
+
+		/* Reset the 2nd time */
+		data &= 0xFFFFFFFD;
+		hw_write_20kx(hw, GPIO_DATA, data);
+		mdelay(10);
+		data |= 0x2;
+		hw_write_20kx(hw, GPIO_DATA, data);
+		mdelay(50);
+
+		if (hw20k2_i2c_read(hw, CS4382_MC1,  &cs_read.mode_control_1))
+			continue;
+
+		if (hw20k2_i2c_read(hw, CS4382_MC2,  &cs_read.mode_control_2))
+			continue;
+
+		if (hw20k2_i2c_read(hw, CS4382_MC3,  &cs_read.mode_control_3))
+			continue;
+
+		if (hw20k2_i2c_read(hw, CS4382_FC,   &cs_read.filter_control))
+			continue;
+
+		if (hw20k2_i2c_read(hw, CS4382_IC,   &cs_read.invert_control))
+			continue;
+
+		if (hw20k2_i2c_read(hw, CS4382_XC1,  &cs_read.mix_control_P1))
+			continue;
+
+		if (hw20k2_i2c_read(hw, CS4382_VCA1, &cs_read.vol_control_A1))
+			continue;
+
+		if (hw20k2_i2c_read(hw, CS4382_VCB1, &cs_read.vol_control_B1))
+			continue;
+
+		if (hw20k2_i2c_read(hw, CS4382_XC2,  &cs_read.mix_control_P2))
+			continue;
+
+		if (hw20k2_i2c_read(hw, CS4382_VCA2, &cs_read.vol_control_A2))
+			continue;
+
+		if (hw20k2_i2c_read(hw, CS4382_VCB2, &cs_read.vol_control_B2))
+			continue;
+
+		if (hw20k2_i2c_read(hw, CS4382_XC3,  &cs_read.mix_control_P3))
+			continue;
+
+		if (hw20k2_i2c_read(hw, CS4382_VCA3, &cs_read.vol_control_A3))
+			continue;
+
+		if (hw20k2_i2c_read(hw, CS4382_VCB3, &cs_read.vol_control_B3))
+			continue;
+
+		if (hw20k2_i2c_read(hw, CS4382_XC4,  &cs_read.mix_control_P4))
+			continue;
+
+		if (hw20k2_i2c_read(hw, CS4382_VCA4, &cs_read.vol_control_A4))
+			continue;
+
+		if (hw20k2_i2c_read(hw, CS4382_VCB4, &cs_read.vol_control_B4))
+			continue;
+
+		if (memcmp(&cs_read, &cs_def, sizeof(cs_read)))
+			continue;
+		else
+			break;
+	}
+
+	if (i >= 2)
+		goto End;
+
+	/* Note: Every I2C write must have some delay.
+	 * This is not a requirement but the delay works here... */
+	hw20k2_i2c_write(hw, CS4382_MC1, 0x80);
+	hw20k2_i2c_write(hw, CS4382_MC2, 0x10);
+	if (1 == info->msr) {
+		hw20k2_i2c_write(hw, CS4382_XC1, 0x24);
+		hw20k2_i2c_write(hw, CS4382_XC2, 0x24);
+		hw20k2_i2c_write(hw, CS4382_XC3, 0x24);
+		hw20k2_i2c_write(hw, CS4382_XC4, 0x24);
+	} else if (2 == info->msr) {
+		hw20k2_i2c_write(hw, CS4382_XC1, 0x25);
+		hw20k2_i2c_write(hw, CS4382_XC2, 0x25);
+		hw20k2_i2c_write(hw, CS4382_XC3, 0x25);
+		hw20k2_i2c_write(hw, CS4382_XC4, 0x25);
+	} else {
+		hw20k2_i2c_write(hw, CS4382_XC1, 0x26);
+		hw20k2_i2c_write(hw, CS4382_XC2, 0x26);
+		hw20k2_i2c_write(hw, CS4382_XC3, 0x26);
+		hw20k2_i2c_write(hw, CS4382_XC4, 0x26);
+	}
+
+	return 0;
+End:
+
+	hw20k2_i2c_uninit(hw);
+	return -1;
+}
+
+/* ADC operations */
+#define MAKE_WM8775_ADDR(addr, data)	(u32)(((addr<<1)&0xFE)|((data>>8)&0x1))
+#define MAKE_WM8775_DATA(data)	(u32)(data&0xFF)
+
+#define WM8775_IC       0x0B
+#define WM8775_MMC      0x0C
+#define WM8775_AADCL    0x0E
+#define WM8775_AADCR    0x0F
+#define WM8775_ADCMC    0x15
+#define WM8775_RESET    0x17
+
+static int hw_is_adc_input_selected(struct hw *hw, enum ADCSRC type)
+{
+	u32 data;
+
+	data = hw_read_20kx(hw, GPIO_DATA);
+	switch (type) {
+	case ADC_MICIN:
+		data = (data & (0x1 << 14)) ? 1 : 0;
+		break;
+	case ADC_LINEIN:
+		data = (data & (0x1 << 14)) ? 0 : 1;
+		break;
+	default:
+		data = 0;
+	}
+	return data;
+}
+
+static int hw_adc_input_select(struct hw *hw, enum ADCSRC type)
+{
+	u32 data;
+
+	data = hw_read_20kx(hw, GPIO_DATA);
+	switch (type) {
+	case ADC_MICIN:
+		data |= (0x1 << 14);
+		hw_write_20kx(hw, GPIO_DATA, data);
+		hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_ADCMC, 0x101),
+				MAKE_WM8775_DATA(0x101)); /* Mic-in */
+		hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCL, 0xE7),
+				MAKE_WM8775_DATA(0xE7)); /* +12dB boost */
+		hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCR, 0xE7),
+				MAKE_WM8775_DATA(0xE7)); /* +12dB boost */
+		break;
+	case ADC_LINEIN:
+		data &= ~(0x1 << 14);
+		hw_write_20kx(hw, GPIO_DATA, data);
+		hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_ADCMC, 0x102),
+				MAKE_WM8775_DATA(0x102)); /* Line-in */
+		hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCL, 0xCF),
+				MAKE_WM8775_DATA(0xCF)); /* No boost */
+		hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCR, 0xCF),
+				MAKE_WM8775_DATA(0xCF)); /* No boost */
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int hw_adc_init(struct hw *hw, const struct adc_conf *info)
+{
+	int err;
+	u32 mux = 2, data, ctl;
+
+	/*  Set ADC reset bit as output */
+	data = hw_read_20kx(hw, GPIO_CTRL);
+	data |= (0x1 << 15);
+	hw_write_20kx(hw, GPIO_CTRL, data);
+
+	/* Initialize I2C */
+	err = hw20k2_i2c_init(hw, 0x1A, 1, 1);
+	if (err < 0) {
+		printk(KERN_ALERT "ctxfi: Failure to acquire I2C!!!\n");
+		goto error;
+	}
+
+	/* Make ADC in normal operation */
+	data = hw_read_20kx(hw, GPIO_DATA);
+	data &= ~(0x1 << 15);
+	mdelay(10);
+	data |= (0x1 << 15);
+	hw_write_20kx(hw, GPIO_DATA, data);
+	mdelay(50);
+
+	/* Set the master mode (256fs) */
+	if (1 == info->msr) {
+		hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_MMC, 0x02),
+						MAKE_WM8775_DATA(0x02));
+	} else if (2 == info->msr) {
+		hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_MMC, 0x0A),
+						MAKE_WM8775_DATA(0x0A));
+	} else {
+		printk(KERN_ALERT "ctxfi: Invalid master sampling "
+				  "rate (msr %d)!!!\n", info->msr);
+		err = -EINVAL;
+		goto error;
+	}
+
+	/* Configure GPIO bit 14 change to line-in/mic-in */
+	ctl = hw_read_20kx(hw, GPIO_CTRL);
+	ctl |= 0x1 << 14;
+	hw_write_20kx(hw, GPIO_CTRL, ctl);
+
+	/* Check using Mic-in or Line-in */
+	data = hw_read_20kx(hw, GPIO_DATA);
+
+	if (mux == 1) {
+		/* Configures GPIO data to select Mic-in */
+		data |= 0x1 << 14;
+		hw_write_20kx(hw, GPIO_DATA, data);
+
+		hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_ADCMC, 0x101),
+				MAKE_WM8775_DATA(0x101)); /* Mic-in */
+		hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCL, 0xE7),
+				MAKE_WM8775_DATA(0xE7)); /* +12dB boost */
+		hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCR, 0xE7),
+				MAKE_WM8775_DATA(0xE7)); /* +12dB boost */
+	} else if (mux == 2) {
+		/* Configures GPIO data to select Line-in */
+		data &= ~(0x1 << 14);
+		hw_write_20kx(hw, GPIO_DATA, data);
+
+		/* Setup ADC */
+		hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_ADCMC, 0x102),
+				MAKE_WM8775_DATA(0x102)); /* Line-in */
+		hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCL, 0xCF),
+				MAKE_WM8775_DATA(0xCF)); /* No boost */
+		hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCR, 0xCF),
+				MAKE_WM8775_DATA(0xCF)); /* No boost */
+	} else {
+		printk(KERN_ALERT "ctxfi: ERROR!!! Invalid input mux!!!\n");
+		err = -EINVAL;
+		goto error;
+	}
+
+	return 0;
+
+error:
+	hw20k2_i2c_uninit(hw);
+	return err;
+}
+
+static int hw_have_digit_io_switch(struct hw *hw)
+{
+	return 0;
+}
+
+static int hw_card_start(struct hw *hw)
+{
+	int err = 0;
+	struct pci_dev *pci = hw->pci;
+	unsigned int gctl;
+
+	err = pci_enable_device(pci);
+	if (err < 0)
+		return err;
+
+	/* Set DMA transfer mask */
+	if (pci_set_dma_mask(pci, CT_XFI_DMA_MASK) < 0 ||
+	    pci_set_consistent_dma_mask(pci, CT_XFI_DMA_MASK) < 0) {
+		printk(KERN_ERR "ctxfi: architecture does not support PCI "
+		"busmaster DMA with mask 0x%llx\n", CT_XFI_DMA_MASK);
+		err = -ENXIO;
+		goto error1;
+	}
+
+	err = pci_request_regions(pci, "XFi");
+	if (err < 0)
+		goto error1;
+
+	hw->io_base = pci_resource_start(hw->pci, 2);
+	hw->mem_base = (unsigned long)ioremap(hw->io_base,
+					pci_resource_len(hw->pci, 2));
+	if (NULL == (void *)hw->mem_base) {
+		err = -ENOENT;
+		goto error2;
+	}
+
+	/* Switch to 20k2 mode from UAA mode. */
+	gctl = hw_read_20kx(hw, GLOBAL_CNTL_GCTL);
+	set_field(&gctl, GCTL_UAA, 0);
+	hw_write_20kx(hw, GLOBAL_CNTL_GCTL, gctl);
+
+	/*if ((err = request_irq(pci->irq, ct_atc_interrupt, IRQF_SHARED,
+				atc->chip_details->nm_card, hw))) {
+		goto error3;
+	}
+	hw->irq = pci->irq;
+	*/
+
+	pci_set_master(pci);
+
+	return 0;
+
+/*error3:
+	iounmap((void *)hw->mem_base);
+	hw->mem_base = (unsigned long)NULL;*/
+error2:
+	pci_release_regions(pci);
+	hw->io_base = 0;
+error1:
+	pci_disable_device(pci);
+	return err;
+}
+
+static int hw_card_stop(struct hw *hw)
+{
+	/* TODO: Disable interrupt and so on... */
+	return 0;
+}
+
+static int hw_card_shutdown(struct hw *hw)
+{
+	if (hw->irq >= 0)
+		free_irq(hw->irq, hw);
+
+	hw->irq	= -1;
+
+	if (NULL != ((void *)hw->mem_base))
+		iounmap((void *)hw->mem_base);
+
+	hw->mem_base = (unsigned long)NULL;
+
+	if (hw->io_base)
+		pci_release_regions(hw->pci);
+
+	hw->io_base = 0;
+
+	pci_disable_device(hw->pci);
+
+	return 0;
+}
+
+static int hw_card_init(struct hw *hw, struct card_conf *info)
+{
+	int err;
+	unsigned int gctl;
+	u32 data = 0;
+	struct dac_conf dac_info = {0};
+	struct adc_conf adc_info = {0};
+	struct daio_conf daio_info = {0};
+	struct trn_conf trn_info = {0};
+
+	/* Get PCI io port/memory base address and
+	 * do 20kx core switch if needed. */
+	if (!hw->io_base) {
+		err = hw_card_start(hw);
+		if (err)
+			return err;
+	}
+
+	/* PLL init */
+	err = hw_pll_init(hw, info->rsr);
+	if (err < 0)
+		return err;
+
+	/* kick off auto-init */
+	err = hw_auto_init(hw);
+	if (err < 0)
+		return err;
+
+	gctl = hw_read_20kx(hw, GLOBAL_CNTL_GCTL);
+	set_field(&gctl, GCTL_DBP, 1);
+	set_field(&gctl, GCTL_TBP, 1);
+	set_field(&gctl, GCTL_FBP, 1);
+	set_field(&gctl, GCTL_DPC, 0);
+	hw_write_20kx(hw, GLOBAL_CNTL_GCTL, gctl);
+
+	/* Reset all global pending interrupts */
+	hw_write_20kx(hw, INTERRUPT_GIE, 0);
+	/* Reset all SRC pending interrupts */
+	hw_write_20kx(hw, SRC_IP, 0);
+
+	/* TODO: detect the card ID and configure GPIO accordingly. */
+	/* Configures GPIO (0xD802 0x98028) */
+	/*hw_write_20kx(hw, GPIO_CTRL, 0x7F07);*/
+	/* Configures GPIO (SB0880) */
+	/*hw_write_20kx(hw, GPIO_CTRL, 0xFF07);*/
+	hw_write_20kx(hw, GPIO_CTRL, 0xD802);
+
+	/* Enable audio ring */
+	hw_write_20kx(hw, MIXER_AR_ENABLE, 0x01);
+
+	trn_info.vm_pgt_phys = info->vm_pgt_phys;
+	err = hw_trn_init(hw, &trn_info);
+	if (err < 0)
+		return err;
+
+	daio_info.msr = info->msr;
+	err = hw_daio_init(hw, &daio_info);
+	if (err < 0)
+		return err;
+
+	dac_info.msr = info->msr;
+	err = hw_dac_init(hw, &dac_info);
+	if (err < 0)
+		return err;
+
+	adc_info.msr = info->msr;
+	adc_info.input = ADC_LINEIN;
+	adc_info.mic20db = 0;
+	err = hw_adc_init(hw, &adc_info);
+	if (err < 0)
+		return err;
+
+	data = hw_read_20kx(hw, SRC_MCTL);
+	data |= 0x1; /* Enables input from the audio ring */
+	hw_write_20kx(hw, SRC_MCTL, data);
+
+	return 0;
+}
+
+static u32 hw_read_20kx(struct hw *hw, u32 reg)
+{
+	return readl((void *)(hw->mem_base + reg));
+}
+
+static void hw_write_20kx(struct hw *hw, u32 reg, u32 data)
+{
+	writel(data, (void *)(hw->mem_base + reg));
+}
+
+static struct hw ct20k2_preset __devinitdata = {
+	.irq = -1,
+
+	.card_init = hw_card_init,
+	.card_stop = hw_card_stop,
+	.pll_init = hw_pll_init,
+	.is_adc_source_selected = hw_is_adc_input_selected,
+	.select_adc_source = hw_adc_input_select,
+	.have_digit_io_switch = hw_have_digit_io_switch,
+
+	.src_rsc_get_ctrl_blk = src_get_rsc_ctrl_blk,
+	.src_rsc_put_ctrl_blk = src_put_rsc_ctrl_blk,
+	.src_mgr_get_ctrl_blk = src_mgr_get_ctrl_blk,
+	.src_mgr_put_ctrl_blk = src_mgr_put_ctrl_blk,
+	.src_set_state = src_set_state,
+	.src_set_bm = src_set_bm,
+	.src_set_rsr = src_set_rsr,
+	.src_set_sf = src_set_sf,
+	.src_set_wr = src_set_wr,
+	.src_set_pm = src_set_pm,
+	.src_set_rom = src_set_rom,
+	.src_set_vo = src_set_vo,
+	.src_set_st = src_set_st,
+	.src_set_ie = src_set_ie,
+	.src_set_ilsz = src_set_ilsz,
+	.src_set_bp = src_set_bp,
+	.src_set_cisz = src_set_cisz,
+	.src_set_ca = src_set_ca,
+	.src_set_sa = src_set_sa,
+	.src_set_la = src_set_la,
+	.src_set_pitch = src_set_pitch,
+	.src_set_dirty = src_set_dirty,
+	.src_set_clear_zbufs = src_set_clear_zbufs,
+	.src_set_dirty_all = src_set_dirty_all,
+	.src_commit_write = src_commit_write,
+	.src_get_ca = src_get_ca,
+	.src_get_dirty = src_get_dirty,
+	.src_dirty_conj_mask = src_dirty_conj_mask,
+	.src_mgr_enbs_src = src_mgr_enbs_src,
+	.src_mgr_enb_src = src_mgr_enb_src,
+	.src_mgr_dsb_src = src_mgr_dsb_src,
+	.src_mgr_commit_write = src_mgr_commit_write,
+
+	.srcimp_mgr_get_ctrl_blk = srcimp_mgr_get_ctrl_blk,
+	.srcimp_mgr_put_ctrl_blk = srcimp_mgr_put_ctrl_blk,
+	.srcimp_mgr_set_imaparc = srcimp_mgr_set_imaparc,
+	.srcimp_mgr_set_imapuser = srcimp_mgr_set_imapuser,
+	.srcimp_mgr_set_imapnxt = srcimp_mgr_set_imapnxt,
+	.srcimp_mgr_set_imapaddr = srcimp_mgr_set_imapaddr,
+	.srcimp_mgr_commit_write = srcimp_mgr_commit_write,
+
+	.amixer_rsc_get_ctrl_blk = amixer_rsc_get_ctrl_blk,
+	.amixer_rsc_put_ctrl_blk = amixer_rsc_put_ctrl_blk,
+	.amixer_mgr_get_ctrl_blk = amixer_mgr_get_ctrl_blk,
+	.amixer_mgr_put_ctrl_blk = amixer_mgr_put_ctrl_blk,
+	.amixer_set_mode = amixer_set_mode,
+	.amixer_set_iv = amixer_set_iv,
+	.amixer_set_x = amixer_set_x,
+	.amixer_set_y = amixer_set_y,
+	.amixer_set_sadr = amixer_set_sadr,
+	.amixer_set_se = amixer_set_se,
+	.amixer_set_dirty = amixer_set_dirty,
+	.amixer_set_dirty_all = amixer_set_dirty_all,
+	.amixer_commit_write = amixer_commit_write,
+	.amixer_get_y = amixer_get_y,
+	.amixer_get_dirty = amixer_get_dirty,
+
+	.dai_get_ctrl_blk = dai_get_ctrl_blk,
+	.dai_put_ctrl_blk = dai_put_ctrl_blk,
+	.dai_srt_set_srco = dai_srt_set_srco,
+	.dai_srt_set_srcm = dai_srt_set_srcm,
+	.dai_srt_set_rsr = dai_srt_set_rsr,
+	.dai_srt_set_drat = dai_srt_set_drat,
+	.dai_srt_set_ec = dai_srt_set_ec,
+	.dai_srt_set_et = dai_srt_set_et,
+	.dai_commit_write = dai_commit_write,
+
+	.dao_get_ctrl_blk = dao_get_ctrl_blk,
+	.dao_put_ctrl_blk = dao_put_ctrl_blk,
+	.dao_set_spos = dao_set_spos,
+	.dao_commit_write = dao_commit_write,
+	.dao_get_spos = dao_get_spos,
+
+	.daio_mgr_get_ctrl_blk = daio_mgr_get_ctrl_blk,
+	.daio_mgr_put_ctrl_blk = daio_mgr_put_ctrl_blk,
+	.daio_mgr_enb_dai = daio_mgr_enb_dai,
+	.daio_mgr_dsb_dai = daio_mgr_dsb_dai,
+	.daio_mgr_enb_dao = daio_mgr_enb_dao,
+	.daio_mgr_dsb_dao = daio_mgr_dsb_dao,
+	.daio_mgr_dao_init = daio_mgr_dao_init,
+	.daio_mgr_set_imaparc = daio_mgr_set_imaparc,
+	.daio_mgr_set_imapnxt = daio_mgr_set_imapnxt,
+	.daio_mgr_set_imapaddr = daio_mgr_set_imapaddr,
+	.daio_mgr_commit_write = daio_mgr_commit_write,
+};
+
+int __devinit create_20k2_hw_obj(struct hw **rhw)
+{
+	struct hw20k2 *hw20k2;
+
+	*rhw = NULL;
+	hw20k2 = kzalloc(sizeof(*hw20k2), GFP_KERNEL);
+	if (!hw20k2)
+		return -ENOMEM;
+
+	hw20k2->hw = ct20k2_preset;
+	*rhw = &hw20k2->hw;
+
+	return 0;
+}
+
+int destroy_20k2_hw_obj(struct hw *hw)
+{
+	if (hw->io_base)
+		hw_card_shutdown(hw);
+
+	kfree(hw);
+	return 0;
+}
diff --git a/sound/pci/ctxfi/cthw20k2.h b/sound/pci/ctxfi/cthw20k2.h
new file mode 100644
index 000000000000..d2b7daab6815
--- /dev/null
+++ b/sound/pci/ctxfi/cthw20k2.h
@@ -0,0 +1,26 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	cthw20k2.h
+ *
+ * @Brief
+ * This file contains the definition of hardware access methord.
+ *
+ * @Author	Liu Chun
+ * @Date 	May 13 2008
+ *
+ */
+
+#ifndef CTHW20K2_H
+#define CTHW20K2_H
+
+#include "cthardware.h"
+
+int create_20k2_hw_obj(struct hw **rhw);
+int destroy_20k2_hw_obj(struct hw *hw);
+
+#endif /* CTHW20K2_H */
diff --git a/sound/pci/ctxfi/ctimap.c b/sound/pci/ctxfi/ctimap.c
new file mode 100644
index 000000000000..0b73368a4df6
--- /dev/null
+++ b/sound/pci/ctxfi/ctimap.c
@@ -0,0 +1,112 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	ctimap.c
+ *
+ * @Brief
+ * This file contains the implementation of generic input mapper operations
+ * for input mapper management.
+ *
+ * @Author	Liu Chun
+ * @Date 	May 23 2008
+ *
+ */
+
+#include "ctimap.h"
+#include <linux/slab.h>
+
+int input_mapper_add(struct list_head *mappers, struct imapper *entry,
+		     int (*map_op)(void *, struct imapper *), void *data)
+{
+	struct list_head *pos, *pre, *head;
+	struct imapper *pre_ent, *pos_ent;
+
+	head = mappers;
+
+	if (list_empty(head)) {
+		entry->next = entry->addr;
+		map_op(data, entry);
+		list_add(&entry->list, head);
+		return 0;
+	}
+
+	list_for_each(pos, head) {
+		pos_ent = list_entry(pos, struct imapper, list);
+		if (pos_ent->slot > entry->slot) {
+			/* found a position in list */
+			break;
+		}
+	}
+
+	if (pos != head) {
+		pre = pos->prev;
+		if (pre == head)
+			pre = head->prev;
+
+		__list_add(&entry->list, pos->prev, pos);
+	} else {
+		pre = head->prev;
+		pos = head->next;
+		list_add_tail(&entry->list, head);
+	}
+
+	pre_ent = list_entry(pre, struct imapper, list);
+	pos_ent = list_entry(pos, struct imapper, list);
+
+	entry->next = pos_ent->addr;
+	map_op(data, entry);
+	pre_ent->next = entry->addr;
+	map_op(data, pre_ent);
+
+	return 0;
+}
+
+int input_mapper_delete(struct list_head *mappers, struct imapper *entry,
+		     int (*map_op)(void *, struct imapper *), void *data)
+{
+	struct list_head *next, *pre, *head;
+	struct imapper *pre_ent, *next_ent;
+
+	head = mappers;
+
+	if (list_empty(head))
+		return 0;
+
+	pre = (entry->list.prev == head) ? head->prev : entry->list.prev;
+	next = (entry->list.next == head) ? head->next : entry->list.next;
+
+	if (pre == &entry->list) {
+		/* entry is the only one node in mappers list */
+		entry->next = entry->addr = entry->user = entry->slot = 0;
+		map_op(data, entry);
+		list_del(&entry->list);
+		return 0;
+	}
+
+	pre_ent = list_entry(pre, struct imapper, list);
+	next_ent = list_entry(next, struct imapper, list);
+
+	pre_ent->next = next_ent->addr;
+	map_op(data, pre_ent);
+	list_del(&entry->list);
+
+	return 0;
+}
+
+void free_input_mapper_list(struct list_head *head)
+{
+	struct imapper *entry;
+	struct list_head *pos;
+
+	while (!list_empty(head)) {
+		pos = head->next;
+		list_del(pos);
+		entry = list_entry(pos, struct imapper, list);
+		kfree(entry);
+	}
+}
+
diff --git a/sound/pci/ctxfi/ctimap.h b/sound/pci/ctxfi/ctimap.h
new file mode 100644
index 000000000000..53ccf9be8b68
--- /dev/null
+++ b/sound/pci/ctxfi/ctimap.h
@@ -0,0 +1,40 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	ctimap.h
+ *
+ * @Brief
+ * This file contains the definition of generic input mapper operations
+ * for input mapper management.
+ *
+ * @Author	Liu Chun
+ * @Date 	May 23 2008
+ *
+ */
+
+#ifndef CTIMAP_H
+#define CTIMAP_H
+
+#include <linux/list.h>
+
+struct imapper {
+	unsigned short slot; /* the id of the slot containing input data */
+	unsigned short user; /* the id of the user resource consuming data */
+	unsigned short addr; /* the input mapper ram id */
+	unsigned short next; /* the next input mapper ram id */
+	struct list_head	list;
+};
+
+int input_mapper_add(struct list_head *mappers, struct imapper *entry,
+		     int (*map_op)(void *, struct imapper *), void *data);
+
+int input_mapper_delete(struct list_head *mappers, struct imapper *entry,
+		     int (*map_op)(void *, struct imapper *), void *data);
+
+void free_input_mapper_list(struct list_head *mappers);
+
+#endif /* CTIMAP_H */
diff --git a/sound/pci/ctxfi/ctmixer.c b/sound/pci/ctxfi/ctmixer.c
new file mode 100644
index 000000000000..666722d9de41
--- /dev/null
+++ b/sound/pci/ctxfi/ctmixer.c
@@ -0,0 +1,1123 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	ctmixer.c
+ *
+ * @Brief
+ * This file contains the implementation of alsa mixer device functions.
+ *
+ * @Author	Liu Chun
+ * @Date 	May 28 2008
+ *
+ */
+
+
+#include "ctmixer.h"
+#include "ctamixer.h"
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/asoundef.h>
+#include <sound/pcm.h>
+#include <sound/tlv.h>
+
+enum CT_SUM_CTL {
+	SUM_IN_F,
+	SUM_IN_R,
+	SUM_IN_C,
+	SUM_IN_S,
+	SUM_IN_F_C,
+
+	NUM_CT_SUMS
+};
+
+enum CT_AMIXER_CTL {
+	/* volume control mixers */
+	AMIXER_MASTER_F,
+	AMIXER_MASTER_R,
+	AMIXER_MASTER_C,
+	AMIXER_MASTER_S,
+	AMIXER_PCM_F,
+	AMIXER_PCM_R,
+	AMIXER_PCM_C,
+	AMIXER_PCM_S,
+	AMIXER_SPDIFI,
+	AMIXER_LINEIN,
+	AMIXER_MIC,
+	AMIXER_SPDIFO,
+	AMIXER_WAVE_F,
+	AMIXER_WAVE_R,
+	AMIXER_WAVE_C,
+	AMIXER_WAVE_S,
+	AMIXER_MASTER_F_C,
+	AMIXER_PCM_F_C,
+	AMIXER_SPDIFI_C,
+	AMIXER_LINEIN_C,
+	AMIXER_MIC_C,
+
+	/* this should always be the last one */
+	NUM_CT_AMIXERS
+};
+
+enum CTALSA_MIXER_CTL {
+	/* volume control mixers */
+	MIXER_MASTER_P,
+	MIXER_PCM_P,
+	MIXER_LINEIN_P,
+	MIXER_MIC_P,
+	MIXER_SPDIFI_P,
+	MIXER_SPDIFO_P,
+	MIXER_WAVEF_P,
+	MIXER_WAVER_P,
+	MIXER_WAVEC_P,
+	MIXER_WAVES_P,
+	MIXER_MASTER_C,
+	MIXER_PCM_C,
+	MIXER_LINEIN_C,
+	MIXER_MIC_C,
+	MIXER_SPDIFI_C,
+
+	/* switch control mixers */
+	MIXER_PCM_C_S,
+	MIXER_LINEIN_C_S,
+	MIXER_MIC_C_S,
+	MIXER_SPDIFI_C_S,
+	MIXER_LINEIN_P_S,
+	MIXER_SPDIFO_P_S,
+	MIXER_SPDIFI_P_S,
+	MIXER_WAVEF_P_S,
+	MIXER_WAVER_P_S,
+	MIXER_WAVEC_P_S,
+	MIXER_WAVES_P_S,
+	MIXER_DIGITAL_IO_S,
+	MIXER_IEC958_MASK,
+	MIXER_IEC958_DEFAULT,
+	MIXER_IEC958_STREAM,
+
+	/* this should always be the last one */
+	NUM_CTALSA_MIXERS
+};
+
+#define VOL_MIXER_START		MIXER_MASTER_P
+#define VOL_MIXER_END		MIXER_SPDIFI_C
+#define VOL_MIXER_NUM		(VOL_MIXER_END - VOL_MIXER_START + 1)
+#define SWH_MIXER_START		MIXER_PCM_C_S
+#define SWH_MIXER_END		MIXER_DIGITAL_IO_S
+#define SWH_CAPTURE_START	MIXER_PCM_C_S
+#define SWH_CAPTURE_END		MIXER_SPDIFI_C_S
+
+#define CHN_NUM		2
+
+struct ct_kcontrol_init {
+	unsigned char ctl;
+	char *name;
+};
+
+static struct ct_kcontrol_init
+ct_kcontrol_init_table[NUM_CTALSA_MIXERS] = {
+	[MIXER_MASTER_P] = {
+		.ctl = 1,
+		.name = "Master Playback Volume",
+	},
+	[MIXER_MASTER_C] = {
+		.ctl = 1,
+		.name = "Master Capture Volume",
+	},
+	[MIXER_PCM_P] = {
+		.ctl = 1,
+		.name = "PCM Playback Volume",
+	},
+	[MIXER_PCM_C] = {
+		.ctl = 1,
+		.name = "PCM Capture Volume",
+	},
+	[MIXER_LINEIN_P] = {
+		.ctl = 1,
+		.name = "Line-in Playback Volume",
+	},
+	[MIXER_LINEIN_C] = {
+		.ctl = 1,
+		.name = "Line-in Capture Volume",
+	},
+	[MIXER_MIC_P] = {
+		.ctl = 1,
+		.name = "Mic Playback Volume",
+	},
+	[MIXER_MIC_C] = {
+		.ctl = 1,
+		.name = "Mic Capture Volume",
+	},
+	[MIXER_SPDIFI_P] = {
+		.ctl = 1,
+		.name = "S/PDIF-in Playback Volume",
+	},
+	[MIXER_SPDIFI_C] = {
+		.ctl = 1,
+		.name = "S/PDIF-in Capture Volume",
+	},
+	[MIXER_SPDIFO_P] = {
+		.ctl = 1,
+		.name = "S/PDIF-out Playback Volume",
+	},
+	[MIXER_WAVEF_P] = {
+		.ctl = 1,
+		.name = "Front Playback Volume",
+	},
+	[MIXER_WAVES_P] = {
+		.ctl = 1,
+		.name = "Side Playback Volume",
+	},
+	[MIXER_WAVEC_P] = {
+		.ctl = 1,
+		.name = "Center/LFE Playback Volume",
+	},
+	[MIXER_WAVER_P] = {
+		.ctl = 1,
+		.name = "Surround Playback Volume",
+	},
+
+	[MIXER_PCM_C_S] = {
+		.ctl = 1,
+		.name = "PCM Capture Switch",
+	},
+	[MIXER_LINEIN_C_S] = {
+		.ctl = 1,
+		.name = "Line-in Capture Switch",
+	},
+	[MIXER_MIC_C_S] = {
+		.ctl = 1,
+		.name = "Mic Capture Switch",
+	},
+	[MIXER_SPDIFI_C_S] = {
+		.ctl = 1,
+		.name = "S/PDIF-in Capture Switch",
+	},
+	[MIXER_LINEIN_P_S] = {
+		.ctl = 1,
+		.name = "Line-in Playback Switch",
+	},
+	[MIXER_SPDIFO_P_S] = {
+		.ctl = 1,
+		.name = "S/PDIF-out Playback Switch",
+	},
+	[MIXER_SPDIFI_P_S] = {
+		.ctl = 1,
+		.name = "S/PDIF-in Playback Switch",
+	},
+	[MIXER_WAVEF_P_S] = {
+		.ctl = 1,
+		.name = "Front Playback Switch",
+	},
+	[MIXER_WAVES_P_S] = {
+		.ctl = 1,
+		.name = "Side Playback Switch",
+	},
+	[MIXER_WAVEC_P_S] = {
+		.ctl = 1,
+		.name = "Center/LFE Playback Switch",
+	},
+	[MIXER_WAVER_P_S] = {
+		.ctl = 1,
+		.name = "Surround Playback Switch",
+	},
+	[MIXER_DIGITAL_IO_S] = {
+		.ctl = 0,
+		.name = "Digit-IO Playback Switch",
+	},
+};
+
+static void
+ct_mixer_recording_select(struct ct_mixer *mixer, enum CT_AMIXER_CTL type);
+
+static void
+ct_mixer_recording_unselect(struct ct_mixer *mixer, enum CT_AMIXER_CTL type);
+
+static struct snd_kcontrol *kctls[2] = {NULL};
+
+static enum CT_AMIXER_CTL get_amixer_index(enum CTALSA_MIXER_CTL alsa_index)
+{
+	switch (alsa_index) {
+	case MIXER_MASTER_P:	return AMIXER_MASTER_F;
+	case MIXER_MASTER_C:	return AMIXER_MASTER_F_C;
+	case MIXER_PCM_P:	return AMIXER_PCM_F;
+	case MIXER_PCM_C:
+	case MIXER_PCM_C_S:	return AMIXER_PCM_F_C;
+	case MIXER_LINEIN_P:	return AMIXER_LINEIN;
+	case MIXER_LINEIN_C:
+	case MIXER_LINEIN_C_S:	return AMIXER_LINEIN_C;
+	case MIXER_MIC_P:	return AMIXER_MIC;
+	case MIXER_MIC_C:
+	case MIXER_MIC_C_S:	return AMIXER_MIC_C;
+	case MIXER_SPDIFI_P:	return AMIXER_SPDIFI;
+	case MIXER_SPDIFI_C:
+	case MIXER_SPDIFI_C_S:	return AMIXER_SPDIFI_C;
+	case MIXER_SPDIFO_P:	return AMIXER_SPDIFO;
+	case MIXER_WAVEF_P:	return AMIXER_WAVE_F;
+	case MIXER_WAVES_P:	return AMIXER_WAVE_S;
+	case MIXER_WAVEC_P:	return AMIXER_WAVE_C;
+	case MIXER_WAVER_P:	return AMIXER_WAVE_R;
+	default:		return NUM_CT_AMIXERS;
+	}
+}
+
+static enum CT_AMIXER_CTL get_recording_amixer(enum CT_AMIXER_CTL index)
+{
+	switch (index) {
+	case AMIXER_MASTER_F:	return AMIXER_MASTER_F_C;
+	case AMIXER_PCM_F:	return AMIXER_PCM_F_C;
+	case AMIXER_SPDIFI:	return AMIXER_SPDIFI_C;
+	case AMIXER_LINEIN:	return AMIXER_LINEIN_C;
+	case AMIXER_MIC:	return AMIXER_MIC_C;
+	default:		return NUM_CT_AMIXERS;
+	}
+}
+
+static unsigned char
+get_switch_state(struct ct_mixer *mixer, enum CTALSA_MIXER_CTL type)
+{
+	return (mixer->switch_state & (0x1 << (type - SWH_MIXER_START)))
+		? 1 : 0;
+}
+
+static void
+set_switch_state(struct ct_mixer *mixer,
+		 enum CTALSA_MIXER_CTL type, unsigned char state)
+{
+	if (state)
+		mixer->switch_state |= (0x1 << (type - SWH_MIXER_START));
+	else
+		mixer->switch_state &= ~(0x1 << (type - SWH_MIXER_START));
+}
+
+#if 0 /* not used */
+/* Map integer value ranging from 0 to 65535 to 14-bit float value ranging
+ * from 2^-6 to (1+1023/1024) */
+static unsigned int uint16_to_float14(unsigned int x)
+{
+	unsigned int i;
+
+	if (x < 17)
+		return 0;
+
+	x *= 2031;
+	x /= 65535;
+	x += 16;
+
+	/* i <= 6 */
+	for (i = 0; !(x & 0x400); i++)
+		x <<= 1;
+
+	x = (((7 - i) & 0x7) << 10) | (x & 0x3ff);
+
+	return x;
+}
+
+static unsigned int float14_to_uint16(unsigned int x)
+{
+	unsigned int e;
+
+	if (!x)
+		return x;
+
+	e = (x >> 10) & 0x7;
+	x &= 0x3ff;
+	x += 1024;
+	x >>= (7 - e);
+	x -= 16;
+	x *= 65535;
+	x /= 2031;
+
+	return x;
+}
+#endif /* not used */
+
+#define VOL_SCALE	0x1c
+#define VOL_MAX		0x100
+
+static const DECLARE_TLV_DB_SCALE(ct_vol_db_scale, -6400, 25, 1);
+
+static int ct_alsa_mix_volume_info(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = VOL_MAX;
+
+	return 0;
+}
+
+static int ct_alsa_mix_volume_get(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
+	enum CT_AMIXER_CTL type = get_amixer_index(kcontrol->private_value);
+	struct amixer *amixer;
+	int i, val;
+
+	for (i = 0; i < 2; i++) {
+		amixer = ((struct ct_mixer *)atc->mixer)->
+						amixers[type*CHN_NUM+i];
+		val = amixer->ops->get_scale(amixer) / VOL_SCALE;
+		if (val < 0)
+			val = 0;
+		else if (val > VOL_MAX)
+			val = VOL_MAX;
+		ucontrol->value.integer.value[i] = val;
+	}
+
+	return 0;
+}
+
+static int ct_alsa_mix_volume_put(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
+	struct ct_mixer *mixer = atc->mixer;
+	enum CT_AMIXER_CTL type = get_amixer_index(kcontrol->private_value);
+	struct amixer *amixer;
+	int i, j, val, oval, change = 0;
+
+	for (i = 0; i < 2; i++) {
+		val = ucontrol->value.integer.value[i];
+		if (val < 0)
+			val = 0;
+		else if (val > VOL_MAX)
+			val = VOL_MAX;
+		val *= VOL_SCALE;
+		amixer = mixer->amixers[type*CHN_NUM+i];
+		oval = amixer->ops->get_scale(amixer);
+		if (val != oval) {
+			amixer->ops->set_scale(amixer, val);
+			amixer->ops->commit_write(amixer);
+			change = 1;
+			/* Synchronize Master/PCM playback AMIXERs. */
+			if (AMIXER_MASTER_F == type || AMIXER_PCM_F == type) {
+				for (j = 1; j < 4; j++) {
+					amixer = mixer->
+						amixers[(type+j)*CHN_NUM+i];
+					amixer->ops->set_scale(amixer, val);
+					amixer->ops->commit_write(amixer);
+				}
+			}
+		}
+	}
+
+	return change;
+}
+
+static struct snd_kcontrol_new vol_ctl = {
+	.access		= SNDRV_CTL_ELEM_ACCESS_READWRITE |
+			  SNDRV_CTL_ELEM_ACCESS_TLV_READ,
+	.iface		= SNDRV_CTL_ELEM_IFACE_MIXER,
+	.info		= ct_alsa_mix_volume_info,
+	.get		= ct_alsa_mix_volume_get,
+	.put		= ct_alsa_mix_volume_put,
+	.tlv		= { .p =  ct_vol_db_scale },
+};
+
+static void
+do_line_mic_switch(struct ct_atc *atc, enum CTALSA_MIXER_CTL type)
+{
+
+	if (MIXER_LINEIN_C_S == type) {
+		atc->select_line_in(atc);
+		set_switch_state(atc->mixer, MIXER_MIC_C_S, 0);
+		snd_ctl_notify(atc->card, SNDRV_CTL_EVENT_MASK_VALUE,
+							&kctls[1]->id);
+	} else if (MIXER_MIC_C_S == type) {
+		atc->select_mic_in(atc);
+		set_switch_state(atc->mixer, MIXER_LINEIN_C_S, 0);
+		snd_ctl_notify(atc->card, SNDRV_CTL_EVENT_MASK_VALUE,
+							&kctls[0]->id);
+	}
+}
+
+static void
+do_digit_io_switch(struct ct_atc *atc, int state)
+{
+	struct ct_mixer *mixer = atc->mixer;
+
+	if (state) {
+		atc->select_digit_io(atc);
+		atc->spdif_out_unmute(atc,
+				get_switch_state(mixer, MIXER_SPDIFO_P_S));
+		atc->spdif_in_unmute(atc, 1);
+		atc->line_in_unmute(atc, 0);
+		return;
+	}
+
+	if (get_switch_state(mixer, MIXER_LINEIN_C_S))
+		atc->select_line_in(atc);
+	else if (get_switch_state(mixer, MIXER_MIC_C_S))
+		atc->select_mic_in(atc);
+
+	atc->spdif_out_unmute(atc, 0);
+	atc->spdif_in_unmute(atc, 0);
+	atc->line_in_unmute(atc, 1);
+	return;
+}
+
+static int ct_alsa_mix_switch_info(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	uinfo->value.integer.step = 1;
+
+	return 0;
+}
+
+static int ct_alsa_mix_switch_get(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct ct_mixer *mixer =
+		((struct ct_atc *)snd_kcontrol_chip(kcontrol))->mixer;
+	enum CTALSA_MIXER_CTL type = kcontrol->private_value;
+
+	ucontrol->value.integer.value[0] = get_switch_state(mixer, type);
+	return 0;
+}
+
+static int ct_alsa_mix_switch_put(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
+	struct ct_mixer *mixer = atc->mixer;
+	enum CTALSA_MIXER_CTL type = kcontrol->private_value;
+	int state;
+
+	state = ucontrol->value.integer.value[0];
+	if (get_switch_state(mixer, type) == state)
+		return 0;
+
+	set_switch_state(mixer, type, state);
+	/* Do changes in mixer. */
+	if ((SWH_CAPTURE_START <= type) && (SWH_CAPTURE_END >= type)) {
+		if (state) {
+			ct_mixer_recording_select(mixer,
+						  get_amixer_index(type));
+		} else {
+			ct_mixer_recording_unselect(mixer,
+						    get_amixer_index(type));
+		}
+	}
+	/* Do changes out of mixer. */
+	if (state && (MIXER_LINEIN_C_S == type || MIXER_MIC_C_S == type))
+		do_line_mic_switch(atc, type);
+	else if (MIXER_WAVEF_P_S == type)
+		atc->line_front_unmute(atc, state);
+	else if (MIXER_WAVES_P_S == type)
+		atc->line_surround_unmute(atc, state);
+	else if (MIXER_WAVEC_P_S == type)
+		atc->line_clfe_unmute(atc, state);
+	else if (MIXER_WAVER_P_S == type)
+		atc->line_rear_unmute(atc, state);
+	else if (MIXER_LINEIN_P_S == type)
+		atc->line_in_unmute(atc, state);
+	else if (MIXER_SPDIFO_P_S == type)
+		atc->spdif_out_unmute(atc, state);
+	else if (MIXER_SPDIFI_P_S == type)
+		atc->spdif_in_unmute(atc, state);
+	else if (MIXER_DIGITAL_IO_S == type)
+		do_digit_io_switch(atc, state);
+
+	return 1;
+}
+
+static struct snd_kcontrol_new swh_ctl = {
+	.access		= SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.iface		= SNDRV_CTL_ELEM_IFACE_MIXER,
+	.info		= ct_alsa_mix_switch_info,
+	.get		= ct_alsa_mix_switch_get,
+	.put		= ct_alsa_mix_switch_put
+};
+
+static int ct_spdif_info(struct snd_kcontrol *kcontrol,
+			 struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+	return 0;
+}
+
+static int ct_spdif_get_mask(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	ucontrol->value.iec958.status[0] = 0xff;
+	ucontrol->value.iec958.status[1] = 0xff;
+	ucontrol->value.iec958.status[2] = 0xff;
+	ucontrol->value.iec958.status[3] = 0xff;
+	return 0;
+}
+
+static int ct_spdif_default_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	unsigned int status = SNDRV_PCM_DEFAULT_CON_SPDIF;
+
+	ucontrol->value.iec958.status[0] = (status >> 0) & 0xff;
+	ucontrol->value.iec958.status[1] = (status >> 8) & 0xff;
+	ucontrol->value.iec958.status[2] = (status >> 16) & 0xff;
+	ucontrol->value.iec958.status[3] = (status >> 24) & 0xff;
+
+	return 0;
+}
+
+static int ct_spdif_get(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_value *ucontrol)
+{
+	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
+	unsigned int status;
+
+	atc->spdif_out_get_status(atc, &status);
+	ucontrol->value.iec958.status[0] = (status >> 0) & 0xff;
+	ucontrol->value.iec958.status[1] = (status >> 8) & 0xff;
+	ucontrol->value.iec958.status[2] = (status >> 16) & 0xff;
+	ucontrol->value.iec958.status[3] = (status >> 24) & 0xff;
+
+	return 0;
+}
+
+static int ct_spdif_put(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_value *ucontrol)
+{
+	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
+	int change;
+	unsigned int status, old_status;
+
+	status = (ucontrol->value.iec958.status[0] << 0) |
+		 (ucontrol->value.iec958.status[1] << 8) |
+		 (ucontrol->value.iec958.status[2] << 16) |
+		 (ucontrol->value.iec958.status[3] << 24);
+
+	atc->spdif_out_get_status(atc, &old_status);
+	change = (old_status != status);
+	if (change)
+		atc->spdif_out_set_status(atc, status);
+
+	return change;
+}
+
+static struct snd_kcontrol_new iec958_mask_ctl = {
+	.access		= SNDRV_CTL_ELEM_ACCESS_READ,
+	.iface		= SNDRV_CTL_ELEM_IFACE_PCM,
+	.name		= SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),
+	.count		= 1,
+	.info		= ct_spdif_info,
+	.get		= ct_spdif_get_mask,
+	.private_value	= MIXER_IEC958_MASK
+};
+
+static struct snd_kcontrol_new iec958_default_ctl = {
+	.iface		= SNDRV_CTL_ELEM_IFACE_PCM,
+	.name		= SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
+	.count		= 1,
+	.info		= ct_spdif_info,
+	.get		= ct_spdif_default_get,
+	.put		= ct_spdif_put,
+	.private_value	= MIXER_IEC958_DEFAULT
+};
+
+static struct snd_kcontrol_new iec958_ctl = {
+	.access		= SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.iface		= SNDRV_CTL_ELEM_IFACE_PCM,
+	.name		= SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
+	.count		= 1,
+	.info		= ct_spdif_info,
+	.get		= ct_spdif_get,
+	.put		= ct_spdif_put,
+	.private_value	= MIXER_IEC958_STREAM
+};
+
+#define NUM_IEC958_CTL 3
+
+static int
+ct_mixer_kcontrol_new(struct ct_mixer *mixer, struct snd_kcontrol_new *new)
+{
+	struct snd_kcontrol *kctl;
+	int err;
+
+	kctl = snd_ctl_new1(new, mixer->atc);
+	if (NULL == kctl)
+		return -ENOMEM;
+
+	if (SNDRV_CTL_ELEM_IFACE_PCM == kctl->id.iface)
+		kctl->id.device = IEC958;
+
+	err = snd_ctl_add(mixer->atc->card, kctl);
+	if (err)
+		return err;
+
+	switch (new->private_value) {
+	case MIXER_LINEIN_C_S:
+		kctls[0] = kctl; break;
+	case MIXER_MIC_C_S:
+		kctls[1] = kctl; break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int ct_mixer_kcontrols_create(struct ct_mixer *mixer)
+{
+	enum CTALSA_MIXER_CTL type;
+	struct ct_atc *atc = mixer->atc;
+	int err;
+
+	/* Create snd kcontrol instances on demand */
+	for (type = VOL_MIXER_START; type <= VOL_MIXER_END; type++) {
+		if (ct_kcontrol_init_table[type].ctl) {
+			vol_ctl.name = ct_kcontrol_init_table[type].name;
+			vol_ctl.private_value = (unsigned long)type;
+			err = ct_mixer_kcontrol_new(mixer, &vol_ctl);
+			if (err)
+				return err;
+		}
+	}
+
+	ct_kcontrol_init_table[MIXER_DIGITAL_IO_S].ctl =
+					atc->have_digit_io_switch(atc);
+	for (type = SWH_MIXER_START; type <= SWH_MIXER_END; type++) {
+		if (ct_kcontrol_init_table[type].ctl) {
+			swh_ctl.name = ct_kcontrol_init_table[type].name;
+			swh_ctl.private_value = (unsigned long)type;
+			err = ct_mixer_kcontrol_new(mixer, &swh_ctl);
+			if (err)
+				return err;
+		}
+	}
+
+	err = ct_mixer_kcontrol_new(mixer, &iec958_mask_ctl);
+	if (err)
+		return err;
+
+	err = ct_mixer_kcontrol_new(mixer, &iec958_default_ctl);
+	if (err)
+		return err;
+
+	err = ct_mixer_kcontrol_new(mixer, &iec958_ctl);
+	if (err)
+		return err;
+
+	atc->line_front_unmute(atc, 1);
+	set_switch_state(mixer, MIXER_WAVEF_P_S, 1);
+	atc->line_surround_unmute(atc, 0);
+	set_switch_state(mixer, MIXER_WAVES_P_S, 0);
+	atc->line_clfe_unmute(atc, 0);
+	set_switch_state(mixer, MIXER_WAVEC_P_S, 0);
+	atc->line_rear_unmute(atc, 0);
+	set_switch_state(mixer, MIXER_WAVER_P_S, 0);
+	atc->spdif_out_unmute(atc, 0);
+	set_switch_state(mixer, MIXER_SPDIFO_P_S, 0);
+	atc->line_in_unmute(atc, 0);
+	set_switch_state(mixer, MIXER_LINEIN_P_S, 0);
+	atc->spdif_in_unmute(atc, 0);
+	set_switch_state(mixer, MIXER_SPDIFI_P_S, 0);
+
+	set_switch_state(mixer, MIXER_PCM_C_S, 1);
+	set_switch_state(mixer, MIXER_LINEIN_C_S, 1);
+	set_switch_state(mixer, MIXER_SPDIFI_C_S, 1);
+
+	return 0;
+}
+
+static void
+ct_mixer_recording_select(struct ct_mixer *mixer, enum CT_AMIXER_CTL type)
+{
+	struct amixer *amix_d;
+	struct sum *sum_c;
+	int i;
+
+	for (i = 0; i < 2; i++) {
+		amix_d = mixer->amixers[type*CHN_NUM+i];
+		sum_c = mixer->sums[SUM_IN_F_C*CHN_NUM+i];
+		amix_d->ops->set_sum(amix_d, sum_c);
+		amix_d->ops->commit_write(amix_d);
+	}
+}
+
+static void
+ct_mixer_recording_unselect(struct ct_mixer *mixer, enum CT_AMIXER_CTL type)
+{
+	struct amixer *amix_d;
+	int i;
+
+	for (i = 0; i < 2; i++) {
+		amix_d = mixer->amixers[type*CHN_NUM+i];
+		amix_d->ops->set_sum(amix_d, NULL);
+		amix_d->ops->commit_write(amix_d);
+	}
+}
+
+static int ct_mixer_get_resources(struct ct_mixer *mixer)
+{
+	struct sum_mgr *sum_mgr;
+	struct sum *sum;
+	struct sum_desc sum_desc = {0};
+	struct amixer_mgr *amixer_mgr;
+	struct amixer *amixer;
+	struct amixer_desc am_desc = {0};
+	int err;
+	int i;
+
+	/* Allocate sum resources for mixer obj */
+	sum_mgr = (struct sum_mgr *)mixer->atc->rsc_mgrs[SUM];
+	sum_desc.msr = mixer->atc->msr;
+	for (i = 0; i < (NUM_CT_SUMS * CHN_NUM); i++) {
+		err = sum_mgr->get_sum(sum_mgr, &sum_desc, &sum);
+		if (err) {
+			printk(KERN_ERR "ctxfi:Failed to get sum resources for "
+					  "front output!\n");
+			break;
+		}
+		mixer->sums[i] = sum;
+	}
+	if (err)
+		goto error1;
+
+	/* Allocate amixer resources for mixer obj */
+	amixer_mgr = (struct amixer_mgr *)mixer->atc->rsc_mgrs[AMIXER];
+	am_desc.msr = mixer->atc->msr;
+	for (i = 0; i < (NUM_CT_AMIXERS * CHN_NUM); i++) {
+		err = amixer_mgr->get_amixer(amixer_mgr, &am_desc, &amixer);
+		if (err) {
+			printk(KERN_ERR "ctxfi:Failed to get amixer resources "
+			       "for mixer obj!\n");
+			break;
+		}
+		mixer->amixers[i] = amixer;
+	}
+	if (err)
+		goto error2;
+
+	return 0;
+
+error2:
+	for (i = 0; i < (NUM_CT_AMIXERS * CHN_NUM); i++) {
+		if (NULL != mixer->amixers[i]) {
+			amixer = mixer->amixers[i];
+			amixer_mgr->put_amixer(amixer_mgr, amixer);
+			mixer->amixers[i] = NULL;
+		}
+	}
+error1:
+	for (i = 0; i < (NUM_CT_SUMS * CHN_NUM); i++) {
+		if (NULL != mixer->sums[i]) {
+			sum_mgr->put_sum(sum_mgr, (struct sum *)mixer->sums[i]);
+			mixer->sums[i] = NULL;
+		}
+	}
+
+	return err;
+}
+
+static int ct_mixer_get_mem(struct ct_mixer **rmixer)
+{
+	struct ct_mixer *mixer;
+	int err;
+
+	*rmixer = NULL;
+	/* Allocate mem for mixer obj */
+	mixer = kzalloc(sizeof(*mixer), GFP_KERNEL);
+	if (NULL == mixer)
+		return -ENOMEM;
+
+	mixer->amixers = kzalloc(sizeof(void *)*(NUM_CT_AMIXERS*CHN_NUM),
+				 GFP_KERNEL);
+	if (NULL == mixer->amixers) {
+		err = -ENOMEM;
+		goto error1;
+	}
+	mixer->sums = kzalloc(sizeof(void *)*(NUM_CT_SUMS*CHN_NUM), GFP_KERNEL);
+	if (NULL == mixer->sums) {
+		err = -ENOMEM;
+		goto error2;
+	}
+
+	*rmixer = mixer;
+	return 0;
+
+error2:
+	kfree(mixer->amixers);
+error1:
+	kfree(mixer);
+	return err;
+}
+
+static int ct_mixer_topology_build(struct ct_mixer *mixer)
+{
+	struct sum *sum;
+	struct amixer *amix_d, *amix_s;
+	enum CT_AMIXER_CTL i, j;
+
+	/* Build topology from destination to source */
+
+	/* Set up Master mixer */
+	for (i = AMIXER_MASTER_F, j = SUM_IN_F;
+					i <= AMIXER_MASTER_S; i++, j++) {
+		amix_d = mixer->amixers[i*CHN_NUM];
+		sum = mixer->sums[j*CHN_NUM];
+		amix_d->ops->setup(amix_d, &sum->rsc, INIT_VOL, NULL);
+		amix_d = mixer->amixers[i*CHN_NUM+1];
+		sum = mixer->sums[j*CHN_NUM+1];
+		amix_d->ops->setup(amix_d, &sum->rsc, INIT_VOL, NULL);
+	}
+
+	/* Set up Wave-out mixer */
+	for (i = AMIXER_WAVE_F, j = AMIXER_MASTER_F;
+					i <= AMIXER_WAVE_S; i++, j++) {
+		amix_d = mixer->amixers[i*CHN_NUM];
+		amix_s = mixer->amixers[j*CHN_NUM];
+		amix_d->ops->setup(amix_d, &amix_s->rsc, INIT_VOL, NULL);
+		amix_d = mixer->amixers[i*CHN_NUM+1];
+		amix_s = mixer->amixers[j*CHN_NUM+1];
+		amix_d->ops->setup(amix_d, &amix_s->rsc, INIT_VOL, NULL);
+	}
+
+	/* Set up S/PDIF-out mixer */
+	amix_d = mixer->amixers[AMIXER_SPDIFO*CHN_NUM];
+	amix_s = mixer->amixers[AMIXER_MASTER_F*CHN_NUM];
+	amix_d->ops->setup(amix_d, &amix_s->rsc, INIT_VOL, NULL);
+	amix_d = mixer->amixers[AMIXER_SPDIFO*CHN_NUM+1];
+	amix_s = mixer->amixers[AMIXER_MASTER_F*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, &amix_s->rsc, INIT_VOL, NULL);
+
+	/* Set up PCM-in mixer */
+	for (i = AMIXER_PCM_F, j = SUM_IN_F; i <= AMIXER_PCM_S; i++, j++) {
+		amix_d = mixer->amixers[i*CHN_NUM];
+		sum = mixer->sums[j*CHN_NUM];
+		amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+		amix_d = mixer->amixers[i*CHN_NUM+1];
+		sum = mixer->sums[j*CHN_NUM+1];
+		amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+	}
+
+	/* Set up Line-in mixer */
+	amix_d = mixer->amixers[AMIXER_LINEIN*CHN_NUM];
+	sum = mixer->sums[SUM_IN_F*CHN_NUM];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+	amix_d = mixer->amixers[AMIXER_LINEIN*CHN_NUM+1];
+	sum = mixer->sums[SUM_IN_F*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+
+	/* Set up Mic-in mixer */
+	amix_d = mixer->amixers[AMIXER_MIC*CHN_NUM];
+	sum = mixer->sums[SUM_IN_F*CHN_NUM];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+	amix_d = mixer->amixers[AMIXER_MIC*CHN_NUM+1];
+	sum = mixer->sums[SUM_IN_F*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+
+	/* Set up S/PDIF-in mixer */
+	amix_d = mixer->amixers[AMIXER_SPDIFI*CHN_NUM];
+	sum = mixer->sums[SUM_IN_F*CHN_NUM];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+	amix_d = mixer->amixers[AMIXER_SPDIFI*CHN_NUM+1];
+	sum = mixer->sums[SUM_IN_F*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+
+	/* Set up Master recording mixer */
+	amix_d = mixer->amixers[AMIXER_MASTER_F_C*CHN_NUM];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
+	amix_d->ops->setup(amix_d, &sum->rsc, INIT_VOL, NULL);
+	amix_d = mixer->amixers[AMIXER_MASTER_F_C*CHN_NUM+1];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, &sum->rsc, INIT_VOL, NULL);
+
+	/* Set up PCM-in recording mixer */
+	amix_d = mixer->amixers[AMIXER_PCM_F_C*CHN_NUM];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+	amix_d = mixer->amixers[AMIXER_PCM_F_C*CHN_NUM+1];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+
+	/* Set up Line-in recording mixer */
+	amix_d = mixer->amixers[AMIXER_LINEIN_C*CHN_NUM];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+	amix_d = mixer->amixers[AMIXER_LINEIN_C*CHN_NUM+1];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+
+	/* Set up Mic-in recording mixer */
+	amix_d = mixer->amixers[AMIXER_MIC_C*CHN_NUM];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+	amix_d = mixer->amixers[AMIXER_MIC_C*CHN_NUM+1];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+
+	/* Set up S/PDIF-in recording mixer */
+	amix_d = mixer->amixers[AMIXER_SPDIFI_C*CHN_NUM];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+	amix_d = mixer->amixers[AMIXER_SPDIFI_C*CHN_NUM+1];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+
+	return 0;
+}
+
+static int mixer_set_input_port(struct amixer *amixer, struct rsc *rsc)
+{
+	amixer->ops->set_input(amixer, rsc);
+	amixer->ops->commit_write(amixer);
+
+	return 0;
+}
+
+static enum CT_AMIXER_CTL port_to_amixer(enum MIXER_PORT_T type)
+{
+	switch (type) {
+	case MIX_WAVE_FRONT:	return AMIXER_WAVE_F;
+	case MIX_WAVE_SURROUND:	return AMIXER_WAVE_S;
+	case MIX_WAVE_CENTLFE:	return AMIXER_WAVE_C;
+	case MIX_WAVE_REAR:	return AMIXER_WAVE_R;
+	case MIX_PCMO_FRONT:	return AMIXER_MASTER_F_C;
+	case MIX_SPDIF_OUT:	return AMIXER_SPDIFO;
+	case MIX_LINE_IN:	return AMIXER_LINEIN;
+	case MIX_MIC_IN:	return AMIXER_MIC;
+	case MIX_SPDIF_IN:	return AMIXER_SPDIFI;
+	case MIX_PCMI_FRONT:	return AMIXER_PCM_F;
+	case MIX_PCMI_SURROUND:	return AMIXER_PCM_S;
+	case MIX_PCMI_CENTLFE:	return AMIXER_PCM_C;
+	case MIX_PCMI_REAR:	return AMIXER_PCM_R;
+	default: 		return 0;
+	}
+}
+
+static int mixer_get_output_ports(struct ct_mixer *mixer,
+				  enum MIXER_PORT_T type,
+				  struct rsc **rleft, struct rsc **rright)
+{
+	enum CT_AMIXER_CTL amix = port_to_amixer(type);
+
+	if (NULL != rleft)
+		*rleft = &((struct amixer *)mixer->amixers[amix*CHN_NUM])->rsc;
+
+	if (NULL != rright)
+		*rright =
+			&((struct amixer *)mixer->amixers[amix*CHN_NUM+1])->rsc;
+
+	return 0;
+}
+
+static int mixer_set_input_left(struct ct_mixer *mixer,
+				enum MIXER_PORT_T type, struct rsc *rsc)
+{
+	enum CT_AMIXER_CTL amix = port_to_amixer(type);
+
+	mixer_set_input_port(mixer->amixers[amix*CHN_NUM], rsc);
+	amix = get_recording_amixer(amix);
+	if (amix < NUM_CT_AMIXERS)
+		mixer_set_input_port(mixer->amixers[amix*CHN_NUM], rsc);
+
+	return 0;
+}
+
+static int
+mixer_set_input_right(struct ct_mixer *mixer,
+		      enum MIXER_PORT_T type, struct rsc *rsc)
+{
+	enum CT_AMIXER_CTL amix = port_to_amixer(type);
+
+	mixer_set_input_port(mixer->amixers[amix*CHN_NUM+1], rsc);
+	amix = get_recording_amixer(amix);
+	if (amix < NUM_CT_AMIXERS)
+		mixer_set_input_port(mixer->amixers[amix*CHN_NUM+1], rsc);
+
+	return 0;
+}
+
+int ct_mixer_destroy(struct ct_mixer *mixer)
+{
+	struct sum_mgr *sum_mgr = (struct sum_mgr *)mixer->atc->rsc_mgrs[SUM];
+	struct amixer_mgr *amixer_mgr =
+			(struct amixer_mgr *)mixer->atc->rsc_mgrs[AMIXER];
+	struct amixer *amixer;
+	int i = 0;
+
+	/* Release amixer resources */
+	for (i = 0; i < (NUM_CT_AMIXERS * CHN_NUM); i++) {
+		if (NULL != mixer->amixers[i]) {
+			amixer = mixer->amixers[i];
+			amixer_mgr->put_amixer(amixer_mgr, amixer);
+		}
+	}
+
+	/* Release sum resources */
+	for (i = 0; i < (NUM_CT_SUMS * CHN_NUM); i++) {
+		if (NULL != mixer->sums[i])
+			sum_mgr->put_sum(sum_mgr, (struct sum *)mixer->sums[i]);
+	}
+
+	/* Release mem assigned to mixer object */
+	kfree(mixer->sums);
+	kfree(mixer->amixers);
+	kfree(mixer);
+
+	return 0;
+}
+
+int ct_mixer_create(struct ct_atc *atc, struct ct_mixer **rmixer)
+{
+	struct ct_mixer *mixer;
+	int err;
+
+	*rmixer = NULL;
+
+	/* Allocate mem for mixer obj */
+	err = ct_mixer_get_mem(&mixer);
+	if (err)
+		return err;
+
+	mixer->switch_state = 0;
+	mixer->atc = atc;
+	/* Set operations */
+	mixer->get_output_ports = mixer_get_output_ports;
+	mixer->set_input_left = mixer_set_input_left;
+	mixer->set_input_right = mixer_set_input_right;
+
+	/* Allocate chip resources for mixer obj */
+	err = ct_mixer_get_resources(mixer);
+	if (err)
+		goto error;
+
+	/* Build internal mixer topology */
+	ct_mixer_topology_build(mixer);
+
+	*rmixer = mixer;
+
+	return 0;
+
+error:
+	ct_mixer_destroy(mixer);
+	return err;
+}
+
+int ct_alsa_mix_create(struct ct_atc *atc,
+		       enum CTALSADEVS device,
+		       const char *device_name)
+{
+	int err;
+
+	/* Create snd kcontrol instances on demand */
+	/* vol_ctl.device = swh_ctl.device = device; */ /* better w/ device 0 */
+	err = ct_mixer_kcontrols_create((struct ct_mixer *)atc->mixer);
+	if (err)
+		return err;
+
+	strcpy(atc->card->mixername, device_name);
+
+	return 0;
+}
diff --git a/sound/pci/ctxfi/ctmixer.h b/sound/pci/ctxfi/ctmixer.h
new file mode 100644
index 000000000000..e2d96ebde746
--- /dev/null
+++ b/sound/pci/ctxfi/ctmixer.h
@@ -0,0 +1,67 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	ctmixer.h
+ *
+ * @Brief
+ * This file contains the definition of the mixer device functions.
+ *
+ * @Author	Liu Chun
+ * @Date 	Mar 28 2008
+ *
+ */
+
+#ifndef CTMIXER_H
+#define CTMIXER_H
+
+#include "ctatc.h"
+#include "ctresource.h"
+
+#define INIT_VOL	0x1c00
+
+enum MIXER_PORT_T {
+	MIX_WAVE_FRONT,
+	MIX_WAVE_REAR,
+	MIX_WAVE_CENTLFE,
+	MIX_WAVE_SURROUND,
+	MIX_SPDIF_OUT,
+	MIX_PCMO_FRONT,
+	MIX_MIC_IN,
+	MIX_LINE_IN,
+	MIX_SPDIF_IN,
+	MIX_PCMI_FRONT,
+	MIX_PCMI_REAR,
+	MIX_PCMI_CENTLFE,
+	MIX_PCMI_SURROUND,
+
+	NUM_MIX_PORTS
+};
+
+/* alsa mixer descriptor */
+struct ct_mixer {
+	struct ct_atc *atc;
+
+	void **amixers;		/* amixer resources for volume control */
+	void **sums;		/* sum resources for signal collection */
+	unsigned int switch_state; /* A bit-map to indicate state of switches */
+
+	int (*get_output_ports)(struct ct_mixer *mixer, enum MIXER_PORT_T type,
+				  struct rsc **rleft, struct rsc **rright);
+
+	int (*set_input_left)(struct ct_mixer *mixer,
+			      enum MIXER_PORT_T type, struct rsc *rsc);
+	int (*set_input_right)(struct ct_mixer *mixer,
+			       enum MIXER_PORT_T type, struct rsc *rsc);
+};
+
+int ct_alsa_mix_create(struct ct_atc *atc,
+		       enum CTALSADEVS device,
+		       const char *device_name);
+int ct_mixer_create(struct ct_atc *atc, struct ct_mixer **rmixer);
+int ct_mixer_destroy(struct ct_mixer *mixer);
+
+#endif /* CTMIXER_H */
diff --git a/sound/pci/ctxfi/ctpcm.c b/sound/pci/ctxfi/ctpcm.c
new file mode 100644
index 000000000000..9e5c0c4da726
--- /dev/null
+++ b/sound/pci/ctxfi/ctpcm.c
@@ -0,0 +1,426 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	ctpcm.c
+ *
+ * @Brief
+ * This file contains the definition of the pcm device functions.
+ *
+ * @Author	Liu Chun
+ * @Date 	Apr 2 2008
+ *
+ */
+
+#include "ctpcm.h"
+#include "cttimer.h"
+#include <sound/pcm.h>
+
+/* Hardware descriptions for playback */
+static struct snd_pcm_hardware ct_pcm_playback_hw = {
+	.info			= (SNDRV_PCM_INFO_MMAP |
+				   SNDRV_PCM_INFO_INTERLEAVED |
+				   SNDRV_PCM_INFO_BLOCK_TRANSFER |
+				   SNDRV_PCM_INFO_MMAP_VALID |
+				   SNDRV_PCM_INFO_PAUSE),
+	.formats		= (SNDRV_PCM_FMTBIT_U8 |
+				   SNDRV_PCM_FMTBIT_S16_LE |
+				   SNDRV_PCM_FMTBIT_S24_3LE |
+				   SNDRV_PCM_FMTBIT_S32_LE |
+				   SNDRV_PCM_FMTBIT_FLOAT_LE),
+	.rates			= (SNDRV_PCM_RATE_CONTINUOUS |
+				   SNDRV_PCM_RATE_8000_192000),
+	.rate_min		= 8000,
+	.rate_max		= 192000,
+	.channels_min		= 1,
+	.channels_max		= 2,
+	.buffer_bytes_max	= (128*1024),
+	.period_bytes_min	= (64),
+	.period_bytes_max	= (128*1024),
+	.periods_min		= 2,
+	.periods_max		= 1024,
+	.fifo_size		= 0,
+};
+
+static struct snd_pcm_hardware ct_spdif_passthru_playback_hw = {
+	.info			= (SNDRV_PCM_INFO_MMAP |
+				   SNDRV_PCM_INFO_INTERLEAVED |
+				   SNDRV_PCM_INFO_BLOCK_TRANSFER |
+				   SNDRV_PCM_INFO_MMAP_VALID |
+				   SNDRV_PCM_INFO_PAUSE),
+	.formats		= SNDRV_PCM_FMTBIT_S16_LE,
+	.rates			= (SNDRV_PCM_RATE_48000 |
+				   SNDRV_PCM_RATE_44100 |
+				   SNDRV_PCM_RATE_32000),
+	.rate_min		= 32000,
+	.rate_max		= 48000,
+	.channels_min		= 2,
+	.channels_max		= 2,
+	.buffer_bytes_max	= (128*1024),
+	.period_bytes_min	= (64),
+	.period_bytes_max	= (128*1024),
+	.periods_min		= 2,
+	.periods_max		= 1024,
+	.fifo_size		= 0,
+};
+
+/* Hardware descriptions for capture */
+static struct snd_pcm_hardware ct_pcm_capture_hw = {
+	.info			= (SNDRV_PCM_INFO_MMAP |
+				   SNDRV_PCM_INFO_INTERLEAVED |
+				   SNDRV_PCM_INFO_BLOCK_TRANSFER |
+				   SNDRV_PCM_INFO_PAUSE |
+				   SNDRV_PCM_INFO_MMAP_VALID),
+	.formats		= (SNDRV_PCM_FMTBIT_U8 |
+				   SNDRV_PCM_FMTBIT_S16_LE |
+				   SNDRV_PCM_FMTBIT_S24_3LE |
+				   SNDRV_PCM_FMTBIT_S32_LE |
+				   SNDRV_PCM_FMTBIT_FLOAT_LE),
+	.rates			= (SNDRV_PCM_RATE_CONTINUOUS |
+				   SNDRV_PCM_RATE_8000_96000),
+	.rate_min		= 8000,
+	.rate_max		= 96000,
+	.channels_min		= 1,
+	.channels_max		= 2,
+	.buffer_bytes_max	= (128*1024),
+	.period_bytes_min	= (384),
+	.period_bytes_max	= (64*1024),
+	.periods_min		= 2,
+	.periods_max		= 1024,
+	.fifo_size		= 0,
+};
+
+static void ct_atc_pcm_interrupt(struct ct_atc_pcm *atc_pcm)
+{
+	struct ct_atc_pcm *apcm = atc_pcm;
+
+	if (NULL == apcm->substream)
+		return;
+
+	snd_pcm_period_elapsed(apcm->substream);
+}
+
+static void ct_atc_pcm_free_substream(struct snd_pcm_runtime *runtime)
+{
+	struct ct_atc_pcm *apcm = runtime->private_data;
+	struct ct_atc *atc = snd_pcm_substream_chip(apcm->substream);
+
+	atc->pcm_release_resources(atc, apcm);
+	ct_timer_instance_free(apcm->timer);
+	kfree(apcm);
+	runtime->private_data = NULL;
+}
+
+/* pcm playback operations */
+static int ct_pcm_playback_open(struct snd_pcm_substream *substream)
+{
+	struct ct_atc *atc = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct ct_atc_pcm *apcm;
+	int err;
+
+	apcm = kzalloc(sizeof(*apcm), GFP_KERNEL);
+	if (NULL == apcm)
+		return -ENOMEM;
+
+	apcm->substream = substream;
+	apcm->interrupt = ct_atc_pcm_interrupt;
+	runtime->private_data = apcm;
+	runtime->private_free = ct_atc_pcm_free_substream;
+	if (IEC958 == substream->pcm->device) {
+		runtime->hw = ct_spdif_passthru_playback_hw;
+		atc->spdif_out_passthru(atc, 1);
+	} else {
+		runtime->hw = ct_pcm_playback_hw;
+		if (FRONT == substream->pcm->device)
+			runtime->hw.channels_max = 8;
+	}
+
+	err = snd_pcm_hw_constraint_integer(runtime,
+					    SNDRV_PCM_HW_PARAM_PERIODS);
+	if (err < 0) {
+		kfree(apcm);
+		return err;
+	}
+	err = snd_pcm_hw_constraint_minmax(runtime,
+					   SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
+					   1024, UINT_MAX);
+	if (err < 0) {
+		kfree(apcm);
+		return err;
+	}
+
+	apcm->timer = ct_timer_instance_new(atc->timer, apcm);
+	if (!apcm->timer)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static int ct_pcm_playback_close(struct snd_pcm_substream *substream)
+{
+	struct ct_atc *atc = snd_pcm_substream_chip(substream);
+
+	/* TODO: Notify mixer inactive. */
+	if (IEC958 == substream->pcm->device)
+		atc->spdif_out_passthru(atc, 0);
+
+	/* The ct_atc_pcm object will be freed by runtime->private_free */
+
+	return 0;
+}
+
+static int ct_pcm_hw_params(struct snd_pcm_substream *substream,
+				     struct snd_pcm_hw_params *hw_params)
+{
+	struct ct_atc *atc = snd_pcm_substream_chip(substream);
+	struct ct_atc_pcm *apcm = substream->runtime->private_data;
+	int err;
+
+	err = snd_pcm_lib_malloc_pages(substream,
+					params_buffer_bytes(hw_params));
+	if (err < 0)
+		return err;
+	/* clear previous resources */
+	atc->pcm_release_resources(atc, apcm);
+	return err;
+}
+
+static int ct_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+	struct ct_atc *atc = snd_pcm_substream_chip(substream);
+	struct ct_atc_pcm *apcm = substream->runtime->private_data;
+
+	/* clear previous resources */
+	atc->pcm_release_resources(atc, apcm);
+	/* Free snd-allocated pages */
+	return snd_pcm_lib_free_pages(substream);
+}
+
+
+static int ct_pcm_playback_prepare(struct snd_pcm_substream *substream)
+{
+	int err;
+	struct ct_atc *atc = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct ct_atc_pcm *apcm = runtime->private_data;
+
+	if (IEC958 == substream->pcm->device)
+		err = atc->spdif_passthru_playback_prepare(atc, apcm);
+	else
+		err = atc->pcm_playback_prepare(atc, apcm);
+
+	if (err < 0) {
+		printk(KERN_ERR "ctxfi: Preparing pcm playback failed!!!\n");
+		return err;
+	}
+
+	return 0;
+}
+
+static int
+ct_pcm_playback_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct ct_atc *atc = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct ct_atc_pcm *apcm = runtime->private_data;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		atc->pcm_playback_start(atc, apcm);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		atc->pcm_playback_stop(atc, apcm);
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static snd_pcm_uframes_t
+ct_pcm_playback_pointer(struct snd_pcm_substream *substream)
+{
+	unsigned long position;
+	struct ct_atc *atc = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct ct_atc_pcm *apcm = runtime->private_data;
+
+	/* Read out playback position */
+	position = atc->pcm_playback_position(atc, apcm);
+	position = bytes_to_frames(runtime, position);
+	if (position >= runtime->buffer_size)
+		position = 0;
+	return position;
+}
+
+/* pcm capture operations */
+static int ct_pcm_capture_open(struct snd_pcm_substream *substream)
+{
+	struct ct_atc *atc = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct ct_atc_pcm *apcm;
+	int err;
+
+	apcm = kzalloc(sizeof(*apcm), GFP_KERNEL);
+	if (NULL == apcm)
+		return -ENOMEM;
+
+	apcm->started = 0;
+	apcm->substream = substream;
+	apcm->interrupt = ct_atc_pcm_interrupt;
+	runtime->private_data = apcm;
+	runtime->private_free = ct_atc_pcm_free_substream;
+	runtime->hw = ct_pcm_capture_hw;
+	runtime->hw.rate_max = atc->rsr * atc->msr;
+
+	err = snd_pcm_hw_constraint_integer(runtime,
+					    SNDRV_PCM_HW_PARAM_PERIODS);
+	if (err < 0) {
+		kfree(apcm);
+		return err;
+	}
+	err = snd_pcm_hw_constraint_minmax(runtime,
+					   SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
+					   1024, UINT_MAX);
+	if (err < 0) {
+		kfree(apcm);
+		return err;
+	}
+
+	apcm->timer = ct_timer_instance_new(atc->timer, apcm);
+	if (!apcm->timer)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static int ct_pcm_capture_close(struct snd_pcm_substream *substream)
+{
+	/* The ct_atc_pcm object will be freed by runtime->private_free */
+	/* TODO: Notify mixer inactive. */
+	return 0;
+}
+
+static int ct_pcm_capture_prepare(struct snd_pcm_substream *substream)
+{
+	int err;
+	struct ct_atc *atc = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct ct_atc_pcm *apcm = runtime->private_data;
+
+	err = atc->pcm_capture_prepare(atc, apcm);
+	if (err < 0) {
+		printk(KERN_ERR "ctxfi: Preparing pcm capture failed!!!\n");
+		return err;
+	}
+
+	return 0;
+}
+
+static int
+ct_pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct ct_atc *atc = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct ct_atc_pcm *apcm = runtime->private_data;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		atc->pcm_capture_start(atc, apcm);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+		atc->pcm_capture_stop(atc, apcm);
+		break;
+	default:
+		atc->pcm_capture_stop(atc, apcm);
+		break;
+	}
+
+	return 0;
+}
+
+static snd_pcm_uframes_t
+ct_pcm_capture_pointer(struct snd_pcm_substream *substream)
+{
+	unsigned long position;
+	struct ct_atc *atc = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct ct_atc_pcm *apcm = runtime->private_data;
+
+	/* Read out playback position */
+	position = atc->pcm_capture_position(atc, apcm);
+	position = bytes_to_frames(runtime, position);
+	if (position >= runtime->buffer_size)
+		position = 0;
+	return position;
+}
+
+/* PCM operators for playback */
+static struct snd_pcm_ops ct_pcm_playback_ops = {
+	.open	 	= ct_pcm_playback_open,
+	.close		= ct_pcm_playback_close,
+	.ioctl		= snd_pcm_lib_ioctl,
+	.hw_params	= ct_pcm_hw_params,
+	.hw_free	= ct_pcm_hw_free,
+	.prepare	= ct_pcm_playback_prepare,
+	.trigger	= ct_pcm_playback_trigger,
+	.pointer	= ct_pcm_playback_pointer,
+	.page		= snd_pcm_sgbuf_ops_page,
+};
+
+/* PCM operators for capture */
+static struct snd_pcm_ops ct_pcm_capture_ops = {
+	.open	 	= ct_pcm_capture_open,
+	.close		= ct_pcm_capture_close,
+	.ioctl		= snd_pcm_lib_ioctl,
+	.hw_params	= ct_pcm_hw_params,
+	.hw_free	= ct_pcm_hw_free,
+	.prepare	= ct_pcm_capture_prepare,
+	.trigger	= ct_pcm_capture_trigger,
+	.pointer	= ct_pcm_capture_pointer,
+	.page		= snd_pcm_sgbuf_ops_page,
+};
+
+/* Create ALSA pcm device */
+int ct_alsa_pcm_create(struct ct_atc *atc,
+		       enum CTALSADEVS device,
+		       const char *device_name)
+{
+	struct snd_pcm *pcm;
+	int err;
+	int playback_count, capture_count;
+
+	playback_count = (IEC958 == device) ? 1 : 8;
+	capture_count = (FRONT == device) ? 1 : 0;
+	err = snd_pcm_new(atc->card, "ctxfi", device,
+			  playback_count, capture_count, &pcm);
+	if (err < 0) {
+		printk(KERN_ERR "ctxfi: snd_pcm_new failed!! Err=%d\n", err);
+		return err;
+	}
+
+	pcm->private_data = atc;
+	pcm->info_flags = 0;
+	pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
+	strlcpy(pcm->name, device_name, sizeof(pcm->name));
+
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &ct_pcm_playback_ops);
+
+	if (FRONT == device)
+		snd_pcm_set_ops(pcm,
+				SNDRV_PCM_STREAM_CAPTURE, &ct_pcm_capture_ops);
+
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
+			snd_dma_pci_data(atc->pci), 128*1024, 128*1024);
+
+	return 0;
+}
diff --git a/sound/pci/ctxfi/ctpcm.h b/sound/pci/ctxfi/ctpcm.h
new file mode 100644
index 000000000000..178da0dca647
--- /dev/null
+++ b/sound/pci/ctxfi/ctpcm.h
@@ -0,0 +1,27 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	ctpcm.h
+ *
+ * @Brief
+ * This file contains the definition of the pcm device functions.
+ *
+ * @Author	Liu Chun
+ * @Date 	Mar 28 2008
+ *
+ */
+
+#ifndef CTPCM_H
+#define CTPCM_H
+
+#include "ctatc.h"
+
+int ct_alsa_pcm_create(struct ct_atc *atc,
+		       enum CTALSADEVS device,
+		       const char *device_name);
+
+#endif /* CTPCM_H */
diff --git a/sound/pci/ctxfi/ctresource.c b/sound/pci/ctxfi/ctresource.c
new file mode 100644
index 000000000000..889c495bb7d1
--- /dev/null
+++ b/sound/pci/ctxfi/ctresource.c
@@ -0,0 +1,301 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	ctresource.c
+ *
+ * @Brief
+ * This file contains the implementation of some generic helper functions.
+ *
+ * @Author	Liu Chun
+ * @Date 	May 15 2008
+ *
+ */
+
+#include "ctresource.h"
+#include "cthardware.h"
+#include <linux/err.h>
+#include <linux/slab.h>
+
+#define AUDIO_SLOT_BLOCK_NUM 	256
+
+/* Resource allocation based on bit-map management mechanism */
+static int
+get_resource(u8 *rscs, unsigned int amount,
+	     unsigned int multi, unsigned int *ridx)
+{
+	int i, j, k, n;
+
+	/* Check whether there are sufficient resources to meet request. */
+	for (i = 0, n = multi; i < amount; i++) {
+		j = i / 8;
+		k = i % 8;
+		if (rscs[j] & ((u8)1 << k)) {
+			n = multi;
+			continue;
+		}
+		if (!(--n))
+			break; /* found sufficient contiguous resources */
+	}
+
+	if (i >= amount) {
+		/* Can not find sufficient contiguous resources */
+		return -ENOENT;
+	}
+
+	/* Mark the contiguous bits in resource bit-map as used */
+	for (n = multi; n > 0; n--) {
+		j = i / 8;
+		k = i % 8;
+		rscs[j] |= ((u8)1 << k);
+		i--;
+	}
+
+	*ridx = i + 1;
+
+	return 0;
+}
+
+static int put_resource(u8 *rscs, unsigned int multi, unsigned int idx)
+{
+	unsigned int i, j, k, n;
+
+	/* Mark the contiguous bits in resource bit-map as used */
+	for (n = multi, i = idx; n > 0; n--) {
+		j = i / 8;
+		k = i % 8;
+		rscs[j] &= ~((u8)1 << k);
+		i++;
+	}
+
+	return 0;
+}
+
+int mgr_get_resource(struct rsc_mgr *mgr, unsigned int n, unsigned int *ridx)
+{
+	int err;
+
+	if (n > mgr->avail)
+		return -ENOENT;
+
+	err = get_resource(mgr->rscs, mgr->amount, n, ridx);
+	if (!err)
+		mgr->avail -= n;
+
+	return err;
+}
+
+int mgr_put_resource(struct rsc_mgr *mgr, unsigned int n, unsigned int idx)
+{
+	put_resource(mgr->rscs, n, idx);
+	mgr->avail += n;
+
+	return 0;
+}
+
+static unsigned char offset_in_audio_slot_block[NUM_RSCTYP] = {
+	/* SRC channel is at Audio Ring slot 1 every 16 slots. */
+	[SRC]		= 0x1,
+	[AMIXER]	= 0x4,
+	[SUM]		= 0xc,
+};
+
+static int rsc_index(const struct rsc *rsc)
+{
+    return rsc->conj;
+}
+
+static int audio_ring_slot(const struct rsc *rsc)
+{
+    return (rsc->conj << 4) + offset_in_audio_slot_block[rsc->type];
+}
+
+static int rsc_next_conj(struct rsc *rsc)
+{
+	unsigned int i;
+	for (i = 0; (i < 8) && (!(rsc->msr & (0x1 << i))); )
+		i++;
+	rsc->conj += (AUDIO_SLOT_BLOCK_NUM >> i);
+	return rsc->conj;
+}
+
+static int rsc_master(struct rsc *rsc)
+{
+	return rsc->conj = rsc->idx;
+}
+
+static struct rsc_ops rsc_generic_ops = {
+	.index		= rsc_index,
+	.output_slot	= audio_ring_slot,
+	.master		= rsc_master,
+	.next_conj	= rsc_next_conj,
+};
+
+int rsc_init(struct rsc *rsc, u32 idx, enum RSCTYP type, u32 msr, void *hw)
+{
+	int err = 0;
+
+	rsc->idx = idx;
+	rsc->conj = idx;
+	rsc->type = type;
+	rsc->msr = msr;
+	rsc->hw = hw;
+	rsc->ops = &rsc_generic_ops;
+	if (NULL == hw) {
+		rsc->ctrl_blk = NULL;
+		return 0;
+	}
+
+	switch (type) {
+	case SRC:
+		err = ((struct hw *)hw)->src_rsc_get_ctrl_blk(&rsc->ctrl_blk);
+		break;
+	case AMIXER:
+		err = ((struct hw *)hw)->
+				amixer_rsc_get_ctrl_blk(&rsc->ctrl_blk);
+		break;
+	case SRCIMP:
+	case SUM:
+	case DAIO:
+		break;
+	default:
+		printk(KERN_ERR
+		       "ctxfi: Invalid resource type value %d!\n", type);
+		return -EINVAL;
+	}
+
+	if (err) {
+		printk(KERN_ERR
+		       "ctxfi: Failed to get resource control block!\n");
+		return err;
+	}
+
+	return 0;
+}
+
+int rsc_uninit(struct rsc *rsc)
+{
+	if ((NULL != rsc->hw) && (NULL != rsc->ctrl_blk)) {
+		switch (rsc->type) {
+		case SRC:
+			((struct hw *)rsc->hw)->
+				src_rsc_put_ctrl_blk(rsc->ctrl_blk);
+			break;
+		case AMIXER:
+			((struct hw *)rsc->hw)->
+				amixer_rsc_put_ctrl_blk(rsc->ctrl_blk);
+			break;
+		case SUM:
+		case DAIO:
+			break;
+		default:
+			printk(KERN_ERR "ctxfi: "
+			       "Invalid resource type value %d!\n", rsc->type);
+			break;
+		}
+
+		rsc->hw = rsc->ctrl_blk = NULL;
+	}
+
+	rsc->idx = rsc->conj = 0;
+	rsc->type = NUM_RSCTYP;
+	rsc->msr = 0;
+
+	return 0;
+}
+
+int rsc_mgr_init(struct rsc_mgr *mgr, enum RSCTYP type,
+		 unsigned int amount, void *hw_obj)
+{
+	int err = 0;
+	struct hw *hw = hw_obj;
+
+	mgr->type = NUM_RSCTYP;
+
+	mgr->rscs = kzalloc(((amount + 8 - 1) / 8), GFP_KERNEL);
+	if (NULL == mgr->rscs)
+		return -ENOMEM;
+
+	switch (type) {
+	case SRC:
+		err = hw->src_mgr_get_ctrl_blk(&mgr->ctrl_blk);
+		break;
+	case SRCIMP:
+		err = hw->srcimp_mgr_get_ctrl_blk(&mgr->ctrl_blk);
+		break;
+	case AMIXER:
+		err = hw->amixer_mgr_get_ctrl_blk(&mgr->ctrl_blk);
+		break;
+	case DAIO:
+		err = hw->daio_mgr_get_ctrl_blk(hw, &mgr->ctrl_blk);
+		break;
+	case SUM:
+		break;
+	default:
+		printk(KERN_ERR
+		       "ctxfi: Invalid resource type value %d!\n", type);
+		err = -EINVAL;
+		goto error;
+	}
+
+	if (err) {
+		printk(KERN_ERR
+		       "ctxfi: Failed to get manager control block!\n");
+		goto error;
+	}
+
+	mgr->type = type;
+	mgr->avail = mgr->amount = amount;
+	mgr->hw = hw;
+
+	return 0;
+
+error:
+	kfree(mgr->rscs);
+	return err;
+}
+
+int rsc_mgr_uninit(struct rsc_mgr *mgr)
+{
+	if (NULL != mgr->rscs) {
+		kfree(mgr->rscs);
+		mgr->rscs = NULL;
+	}
+
+	if ((NULL != mgr->hw) && (NULL != mgr->ctrl_blk)) {
+		switch (mgr->type) {
+		case SRC:
+			((struct hw *)mgr->hw)->
+				src_mgr_put_ctrl_blk(mgr->ctrl_blk);
+			break;
+		case SRCIMP:
+			((struct hw *)mgr->hw)->
+				srcimp_mgr_put_ctrl_blk(mgr->ctrl_blk);
+			break;
+		case AMIXER:
+			((struct hw *)mgr->hw)->
+				amixer_mgr_put_ctrl_blk(mgr->ctrl_blk);
+			break;
+		case DAIO:
+			((struct hw *)mgr->hw)->
+				daio_mgr_put_ctrl_blk(mgr->ctrl_blk);
+			break;
+		case SUM:
+			break;
+		default:
+			printk(KERN_ERR "ctxfi: "
+			       "Invalid resource type value %d!\n", mgr->type);
+			break;
+		}
+
+		mgr->hw = mgr->ctrl_blk = NULL;
+	}
+
+	mgr->type = NUM_RSCTYP;
+	mgr->avail = mgr->amount = 0;
+
+	return 0;
+}
diff --git a/sound/pci/ctxfi/ctresource.h b/sound/pci/ctxfi/ctresource.h
new file mode 100644
index 000000000000..0838c2e84f8b
--- /dev/null
+++ b/sound/pci/ctxfi/ctresource.h
@@ -0,0 +1,72 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	ctresource.h
+ *
+ * @Brief
+ * This file contains the definition of generic hardware resources for
+ * resource management.
+ *
+ * @Author	Liu Chun
+ * @Date 	May 13 2008
+ *
+ */
+
+#ifndef CTRESOURCE_H
+#define CTRESOURCE_H
+
+#include <linux/types.h>
+
+enum RSCTYP {
+	SRC,
+	SRCIMP,
+	AMIXER,
+	SUM,
+	DAIO,
+	NUM_RSCTYP	/* This must be the last one and less than 16 */
+};
+
+struct rsc_ops;
+
+struct rsc {
+	u32 idx:12;	/* The index of a resource */
+	u32 type:4;	/* The type (RSCTYP) of a resource */
+	u32 conj:12;	/* Current conjugate index */
+	u32 msr:4;	/* The Master Sample Rate a resource working on */
+	void *ctrl_blk;	/* Chip specific control info block for a resource */
+	void *hw;	/* Chip specific object for hardware access means */
+	struct rsc_ops *ops;	/* Generic resource operations */
+};
+
+struct rsc_ops {
+	int (*master)(struct rsc *rsc);	/* Move to master resource */
+	int (*next_conj)(struct rsc *rsc); /* Move to next conjugate resource */
+	int (*index)(const struct rsc *rsc); /* Return the index of resource */
+	/* Return the output slot number */
+	int (*output_slot)(const struct rsc *rsc);
+};
+
+int rsc_init(struct rsc *rsc, u32 idx, enum RSCTYP type, u32 msr, void *hw);
+int rsc_uninit(struct rsc *rsc);
+
+struct rsc_mgr {
+	enum RSCTYP type; /* The type (RSCTYP) of resource to manage */
+	unsigned int amount; /* The total amount of a kind of resource */
+	unsigned int avail; /* The amount of currently available resources */
+	unsigned char *rscs; /* The bit-map for resource allocation */
+	void *ctrl_blk; /* Chip specific control info block */
+	void *hw; /* Chip specific object for hardware access */
+};
+
+/* Resource management is based on bit-map mechanism */
+int rsc_mgr_init(struct rsc_mgr *mgr, enum RSCTYP type,
+		 unsigned int amount, void *hw);
+int rsc_mgr_uninit(struct rsc_mgr *mgr);
+int mgr_get_resource(struct rsc_mgr *mgr, unsigned int n, unsigned int *ridx);
+int mgr_put_resource(struct rsc_mgr *mgr, unsigned int n, unsigned int idx);
+
+#endif /* CTRESOURCE_H */
diff --git a/sound/pci/ctxfi/ctsrc.c b/sound/pci/ctxfi/ctsrc.c
new file mode 100644
index 000000000000..e1c145d8b702
--- /dev/null
+++ b/sound/pci/ctxfi/ctsrc.c
@@ -0,0 +1,886 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	ctsrc.c
+ *
+ * @Brief
+ * This file contains the implementation of the Sample Rate Convertor
+ * resource management object.
+ *
+ * @Author	Liu Chun
+ * @Date 	May 13 2008
+ *
+ */
+
+#include "ctsrc.h"
+#include "cthardware.h"
+#include <linux/slab.h>
+
+#define SRC_RESOURCE_NUM	64
+#define SRCIMP_RESOURCE_NUM	256
+
+static unsigned int conj_mask;
+
+static int src_default_config_memrd(struct src *src);
+static int src_default_config_memwr(struct src *src);
+static int src_default_config_arcrw(struct src *src);
+
+static int (*src_default_config[3])(struct src *) = {
+	[MEMRD] = src_default_config_memrd,
+	[MEMWR] = src_default_config_memwr,
+	[ARCRW] = src_default_config_arcrw
+};
+
+static int src_set_state(struct src *src, unsigned int state)
+{
+	struct hw *hw;
+
+	hw = src->rsc.hw;
+	hw->src_set_state(src->rsc.ctrl_blk, state);
+
+	return 0;
+}
+
+static int src_set_bm(struct src *src, unsigned int bm)
+{
+	struct hw *hw;
+
+	hw = src->rsc.hw;
+	hw->src_set_bm(src->rsc.ctrl_blk, bm);
+
+	return 0;
+}
+
+static int src_set_sf(struct src *src, unsigned int sf)
+{
+	struct hw *hw;
+
+	hw = src->rsc.hw;
+	hw->src_set_sf(src->rsc.ctrl_blk, sf);
+
+	return 0;
+}
+
+static int src_set_pm(struct src *src, unsigned int pm)
+{
+	struct hw *hw;
+
+	hw = src->rsc.hw;
+	hw->src_set_pm(src->rsc.ctrl_blk, pm);
+
+	return 0;
+}
+
+static int src_set_rom(struct src *src, unsigned int rom)
+{
+	struct hw *hw;
+
+	hw = src->rsc.hw;
+	hw->src_set_rom(src->rsc.ctrl_blk, rom);
+
+	return 0;
+}
+
+static int src_set_vo(struct src *src, unsigned int vo)
+{
+	struct hw *hw;
+
+	hw = src->rsc.hw;
+	hw->src_set_vo(src->rsc.ctrl_blk, vo);
+
+	return 0;
+}
+
+static int src_set_st(struct src *src, unsigned int st)
+{
+	struct hw *hw;
+
+	hw = src->rsc.hw;
+	hw->src_set_st(src->rsc.ctrl_blk, st);
+
+	return 0;
+}
+
+static int src_set_bp(struct src *src, unsigned int bp)
+{
+	struct hw *hw;
+
+	hw = src->rsc.hw;
+	hw->src_set_bp(src->rsc.ctrl_blk, bp);
+
+	return 0;
+}
+
+static int src_set_cisz(struct src *src, unsigned int cisz)
+{
+	struct hw *hw;
+
+	hw = src->rsc.hw;
+	hw->src_set_cisz(src->rsc.ctrl_blk, cisz);
+
+	return 0;
+}
+
+static int src_set_ca(struct src *src, unsigned int ca)
+{
+	struct hw *hw;
+
+	hw = src->rsc.hw;
+	hw->src_set_ca(src->rsc.ctrl_blk, ca);
+
+	return 0;
+}
+
+static int src_set_sa(struct src *src, unsigned int sa)
+{
+	struct hw *hw;
+
+	hw = src->rsc.hw;
+	hw->src_set_sa(src->rsc.ctrl_blk, sa);
+
+	return 0;
+}
+
+static int src_set_la(struct src *src, unsigned int la)
+{
+	struct hw *hw;
+
+	hw = src->rsc.hw;
+	hw->src_set_la(src->rsc.ctrl_blk, la);
+
+	return 0;
+}
+
+static int src_set_pitch(struct src *src, unsigned int pitch)
+{
+	struct hw *hw;
+
+	hw = src->rsc.hw;
+	hw->src_set_pitch(src->rsc.ctrl_blk, pitch);
+
+	return 0;
+}
+
+static int src_set_clear_zbufs(struct src *src)
+{
+	struct hw *hw;
+
+	hw = src->rsc.hw;
+	hw->src_set_clear_zbufs(src->rsc.ctrl_blk, 1);
+
+	return 0;
+}
+
+static int src_commit_write(struct src *src)
+{
+	struct hw *hw;
+	int i;
+	unsigned int dirty = 0;
+
+	hw = src->rsc.hw;
+	src->rsc.ops->master(&src->rsc);
+	if (src->rsc.msr > 1) {
+		/* Save dirty flags for conjugate resource programming */
+		dirty = hw->src_get_dirty(src->rsc.ctrl_blk) & conj_mask;
+	}
+	hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
+						src->rsc.ctrl_blk);
+
+	/* Program conjugate parameter mixer resources */
+	if (MEMWR == src->mode)
+		return 0;
+
+	for (i = 1; i < src->rsc.msr; i++) {
+		src->rsc.ops->next_conj(&src->rsc);
+		hw->src_set_dirty(src->rsc.ctrl_blk, dirty);
+		hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
+							src->rsc.ctrl_blk);
+	}
+	src->rsc.ops->master(&src->rsc);
+
+	return 0;
+}
+
+static int src_get_ca(struct src *src)
+{
+	struct hw *hw;
+
+	hw = src->rsc.hw;
+	return hw->src_get_ca(hw, src->rsc.ops->index(&src->rsc),
+						src->rsc.ctrl_blk);
+}
+
+static int src_init(struct src *src)
+{
+	src_default_config[src->mode](src);
+
+	return 0;
+}
+
+static struct src *src_next_interleave(struct src *src)
+{
+	return src->intlv;
+}
+
+static int src_default_config_memrd(struct src *src)
+{
+	struct hw *hw = src->rsc.hw;
+	unsigned int rsr, msr;
+
+	hw->src_set_state(src->rsc.ctrl_blk, SRC_STATE_OFF);
+	hw->src_set_bm(src->rsc.ctrl_blk, 1);
+	for (rsr = 0, msr = src->rsc.msr; msr > 1; msr >>= 1)
+		rsr++;
+
+	hw->src_set_rsr(src->rsc.ctrl_blk, rsr);
+	hw->src_set_sf(src->rsc.ctrl_blk, SRC_SF_S16);
+	hw->src_set_wr(src->rsc.ctrl_blk, 0);
+	hw->src_set_pm(src->rsc.ctrl_blk, 0);
+	hw->src_set_rom(src->rsc.ctrl_blk, 0);
+	hw->src_set_vo(src->rsc.ctrl_blk, 0);
+	hw->src_set_st(src->rsc.ctrl_blk, 0);
+	hw->src_set_ilsz(src->rsc.ctrl_blk, src->multi - 1);
+	hw->src_set_cisz(src->rsc.ctrl_blk, 0x80);
+	hw->src_set_sa(src->rsc.ctrl_blk, 0x0);
+	hw->src_set_la(src->rsc.ctrl_blk, 0x1000);
+	hw->src_set_ca(src->rsc.ctrl_blk, 0x80);
+	hw->src_set_pitch(src->rsc.ctrl_blk, 0x1000000);
+	hw->src_set_clear_zbufs(src->rsc.ctrl_blk, 1);
+
+	src->rsc.ops->master(&src->rsc);
+	hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
+						src->rsc.ctrl_blk);
+
+	for (msr = 1; msr < src->rsc.msr; msr++) {
+		src->rsc.ops->next_conj(&src->rsc);
+		hw->src_set_pitch(src->rsc.ctrl_blk, 0x1000000);
+		hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
+							src->rsc.ctrl_blk);
+	}
+	src->rsc.ops->master(&src->rsc);
+
+	return 0;
+}
+
+static int src_default_config_memwr(struct src *src)
+{
+	struct hw *hw = src->rsc.hw;
+
+	hw->src_set_state(src->rsc.ctrl_blk, SRC_STATE_OFF);
+	hw->src_set_bm(src->rsc.ctrl_blk, 1);
+	hw->src_set_rsr(src->rsc.ctrl_blk, 0);
+	hw->src_set_sf(src->rsc.ctrl_blk, SRC_SF_S16);
+	hw->src_set_wr(src->rsc.ctrl_blk, 1);
+	hw->src_set_pm(src->rsc.ctrl_blk, 0);
+	hw->src_set_rom(src->rsc.ctrl_blk, 0);
+	hw->src_set_vo(src->rsc.ctrl_blk, 0);
+	hw->src_set_st(src->rsc.ctrl_blk, 0);
+	hw->src_set_ilsz(src->rsc.ctrl_blk, 0);
+	hw->src_set_cisz(src->rsc.ctrl_blk, 0x80);
+	hw->src_set_sa(src->rsc.ctrl_blk, 0x0);
+	hw->src_set_la(src->rsc.ctrl_blk, 0x1000);
+	hw->src_set_ca(src->rsc.ctrl_blk, 0x80);
+	hw->src_set_pitch(src->rsc.ctrl_blk, 0x1000000);
+	hw->src_set_clear_zbufs(src->rsc.ctrl_blk, 1);
+
+	src->rsc.ops->master(&src->rsc);
+	hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
+						src->rsc.ctrl_blk);
+
+	return 0;
+}
+
+static int src_default_config_arcrw(struct src *src)
+{
+	struct hw *hw = src->rsc.hw;
+	unsigned int rsr, msr;
+	unsigned int dirty;
+
+	hw->src_set_state(src->rsc.ctrl_blk, SRC_STATE_OFF);
+	hw->src_set_bm(src->rsc.ctrl_blk, 0);
+	for (rsr = 0, msr = src->rsc.msr; msr > 1; msr >>= 1)
+		rsr++;
+
+	hw->src_set_rsr(src->rsc.ctrl_blk, rsr);
+	hw->src_set_sf(src->rsc.ctrl_blk, SRC_SF_F32);
+	hw->src_set_wr(src->rsc.ctrl_blk, 0);
+	hw->src_set_pm(src->rsc.ctrl_blk, 0);
+	hw->src_set_rom(src->rsc.ctrl_blk, 0);
+	hw->src_set_vo(src->rsc.ctrl_blk, 0);
+	hw->src_set_st(src->rsc.ctrl_blk, 0);
+	hw->src_set_ilsz(src->rsc.ctrl_blk, 0);
+	hw->src_set_cisz(src->rsc.ctrl_blk, 0x80);
+	hw->src_set_sa(src->rsc.ctrl_blk, 0x0);
+	/*hw->src_set_sa(src->rsc.ctrl_blk, 0x100);*/
+	hw->src_set_la(src->rsc.ctrl_blk, 0x1000);
+	/*hw->src_set_la(src->rsc.ctrl_blk, 0x03ffffe0);*/
+	hw->src_set_ca(src->rsc.ctrl_blk, 0x80);
+	hw->src_set_pitch(src->rsc.ctrl_blk, 0x1000000);
+	hw->src_set_clear_zbufs(src->rsc.ctrl_blk, 1);
+
+	dirty = hw->src_get_dirty(src->rsc.ctrl_blk);
+	src->rsc.ops->master(&src->rsc);
+	for (msr = 0; msr < src->rsc.msr; msr++) {
+		hw->src_set_dirty(src->rsc.ctrl_blk, dirty);
+		hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
+							src->rsc.ctrl_blk);
+		src->rsc.ops->next_conj(&src->rsc);
+	}
+	src->rsc.ops->master(&src->rsc);
+
+	return 0;
+}
+
+static struct src_rsc_ops src_rsc_ops = {
+	.set_state		= src_set_state,
+	.set_bm			= src_set_bm,
+	.set_sf			= src_set_sf,
+	.set_pm			= src_set_pm,
+	.set_rom		= src_set_rom,
+	.set_vo			= src_set_vo,
+	.set_st			= src_set_st,
+	.set_bp			= src_set_bp,
+	.set_cisz		= src_set_cisz,
+	.set_ca			= src_set_ca,
+	.set_sa			= src_set_sa,
+	.set_la			= src_set_la,
+	.set_pitch		= src_set_pitch,
+	.set_clr_zbufs		= src_set_clear_zbufs,
+	.commit_write		= src_commit_write,
+	.get_ca			= src_get_ca,
+	.init			= src_init,
+	.next_interleave	= src_next_interleave,
+};
+
+static int
+src_rsc_init(struct src *src, u32 idx,
+	     const struct src_desc *desc, struct src_mgr *mgr)
+{
+	int err;
+	int i, n;
+	struct src *p;
+
+	n = (MEMRD == desc->mode) ? desc->multi : 1;
+	for (i = 0, p = src; i < n; i++, p++) {
+		err = rsc_init(&p->rsc, idx + i, SRC, desc->msr, mgr->mgr.hw);
+		if (err)
+			goto error1;
+
+		/* Initialize src specific rsc operations */
+		p->ops = &src_rsc_ops;
+		p->multi = (0 == i) ? desc->multi : 1;
+		p->mode = desc->mode;
+		src_default_config[desc->mode](p);
+		mgr->src_enable(mgr, p);
+		p->intlv = p + 1;
+	}
+	(--p)->intlv = NULL;	/* Set @intlv of the last SRC to NULL */
+
+	mgr->commit_write(mgr);
+
+	return 0;
+
+error1:
+	for (i--, p--; i >= 0; i--, p--) {
+		mgr->src_disable(mgr, p);
+		rsc_uninit(&p->rsc);
+	}
+	mgr->commit_write(mgr);
+	return err;
+}
+
+static int src_rsc_uninit(struct src *src, struct src_mgr *mgr)
+{
+	int i, n;
+	struct src *p;
+
+	n = (MEMRD == src->mode) ? src->multi : 1;
+	for (i = 0, p = src; i < n; i++, p++) {
+		mgr->src_disable(mgr, p);
+		rsc_uninit(&p->rsc);
+		p->multi = 0;
+		p->ops = NULL;
+		p->mode = NUM_SRCMODES;
+		p->intlv = NULL;
+	}
+	mgr->commit_write(mgr);
+
+	return 0;
+}
+
+static int
+get_src_rsc(struct src_mgr *mgr, const struct src_desc *desc, struct src **rsrc)
+{
+	unsigned int idx = SRC_RESOURCE_NUM;
+	int err;
+	struct src *src;
+	unsigned long flags;
+
+	*rsrc = NULL;
+
+	/* Check whether there are sufficient src resources to meet request. */
+	spin_lock_irqsave(&mgr->mgr_lock, flags);
+	if (MEMRD == desc->mode)
+		err = mgr_get_resource(&mgr->mgr, desc->multi, &idx);
+	else
+		err = mgr_get_resource(&mgr->mgr, 1, &idx);
+
+	spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+	if (err) {
+		printk(KERN_ERR "ctxfi: Can't meet SRC resource request!\n");
+		return err;
+	}
+
+	/* Allocate mem for master src resource */
+	if (MEMRD == desc->mode)
+		src = kzalloc(sizeof(*src)*desc->multi, GFP_KERNEL);
+	else
+		src = kzalloc(sizeof(*src), GFP_KERNEL);
+
+	if (NULL == src) {
+		err = -ENOMEM;
+		goto error1;
+	}
+
+	err = src_rsc_init(src, idx, desc, mgr);
+	if (err)
+		goto error2;
+
+	*rsrc = src;
+
+	return 0;
+
+error2:
+	kfree(src);
+error1:
+	spin_lock_irqsave(&mgr->mgr_lock, flags);
+	if (MEMRD == desc->mode)
+		mgr_put_resource(&mgr->mgr, desc->multi, idx);
+	else
+		mgr_put_resource(&mgr->mgr, 1, idx);
+
+	spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+	return err;
+}
+
+static int put_src_rsc(struct src_mgr *mgr, struct src *src)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&mgr->mgr_lock, flags);
+	src->rsc.ops->master(&src->rsc);
+	if (MEMRD == src->mode)
+		mgr_put_resource(&mgr->mgr, src->multi,
+				 src->rsc.ops->index(&src->rsc));
+	else
+		mgr_put_resource(&mgr->mgr, 1, src->rsc.ops->index(&src->rsc));
+
+	spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+	src_rsc_uninit(src, mgr);
+	kfree(src);
+
+	return 0;
+}
+
+static int src_enable_s(struct src_mgr *mgr, struct src *src)
+{
+	struct hw *hw = mgr->mgr.hw;
+	int i;
+
+	src->rsc.ops->master(&src->rsc);
+	for (i = 0; i < src->rsc.msr; i++) {
+		hw->src_mgr_enbs_src(mgr->mgr.ctrl_blk,
+				     src->rsc.ops->index(&src->rsc));
+		src->rsc.ops->next_conj(&src->rsc);
+	}
+	src->rsc.ops->master(&src->rsc);
+
+	return 0;
+}
+
+static int src_enable(struct src_mgr *mgr, struct src *src)
+{
+	struct hw *hw = mgr->mgr.hw;
+	int i;
+
+	src->rsc.ops->master(&src->rsc);
+	for (i = 0; i < src->rsc.msr; i++) {
+		hw->src_mgr_enb_src(mgr->mgr.ctrl_blk,
+				    src->rsc.ops->index(&src->rsc));
+		src->rsc.ops->next_conj(&src->rsc);
+	}
+	src->rsc.ops->master(&src->rsc);
+
+	return 0;
+}
+
+static int src_disable(struct src_mgr *mgr, struct src *src)
+{
+	struct hw *hw = mgr->mgr.hw;
+	int i;
+
+	src->rsc.ops->master(&src->rsc);
+	for (i = 0; i < src->rsc.msr; i++) {
+		hw->src_mgr_dsb_src(mgr->mgr.ctrl_blk,
+				    src->rsc.ops->index(&src->rsc));
+		src->rsc.ops->next_conj(&src->rsc);
+	}
+	src->rsc.ops->master(&src->rsc);
+
+	return 0;
+}
+
+static int src_mgr_commit_write(struct src_mgr *mgr)
+{
+	struct hw *hw = mgr->mgr.hw;
+
+	hw->src_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
+
+	return 0;
+}
+
+int src_mgr_create(void *hw, struct src_mgr **rsrc_mgr)
+{
+	int err, i;
+	struct src_mgr *src_mgr;
+
+	*rsrc_mgr = NULL;
+	src_mgr = kzalloc(sizeof(*src_mgr), GFP_KERNEL);
+	if (NULL == src_mgr)
+		return -ENOMEM;
+
+	err = rsc_mgr_init(&src_mgr->mgr, SRC, SRC_RESOURCE_NUM, hw);
+	if (err)
+		goto error1;
+
+	spin_lock_init(&src_mgr->mgr_lock);
+	conj_mask = ((struct hw *)hw)->src_dirty_conj_mask();
+
+	src_mgr->get_src = get_src_rsc;
+	src_mgr->put_src = put_src_rsc;
+	src_mgr->src_enable_s = src_enable_s;
+	src_mgr->src_enable = src_enable;
+	src_mgr->src_disable = src_disable;
+	src_mgr->commit_write = src_mgr_commit_write;
+
+	/* Disable all SRC resources. */
+	for (i = 0; i < 256; i++)
+		((struct hw *)hw)->src_mgr_dsb_src(src_mgr->mgr.ctrl_blk, i);
+
+	((struct hw *)hw)->src_mgr_commit_write(hw, src_mgr->mgr.ctrl_blk);
+
+	*rsrc_mgr = src_mgr;
+
+	return 0;
+
+error1:
+	kfree(src_mgr);
+	return err;
+}
+
+int src_mgr_destroy(struct src_mgr *src_mgr)
+{
+	rsc_mgr_uninit(&src_mgr->mgr);
+	kfree(src_mgr);
+
+	return 0;
+}
+
+/* SRCIMP resource manager operations */
+
+static int srcimp_master(struct rsc *rsc)
+{
+	rsc->conj = 0;
+	return rsc->idx = container_of(rsc, struct srcimp, rsc)->idx[0];
+}
+
+static int srcimp_next_conj(struct rsc *rsc)
+{
+	rsc->conj++;
+	return container_of(rsc, struct srcimp, rsc)->idx[rsc->conj];
+}
+
+static int srcimp_index(const struct rsc *rsc)
+{
+	return container_of(rsc, struct srcimp, rsc)->idx[rsc->conj];
+}
+
+static struct rsc_ops srcimp_basic_rsc_ops = {
+	.master		= srcimp_master,
+	.next_conj	= srcimp_next_conj,
+	.index		= srcimp_index,
+	.output_slot	= NULL,
+};
+
+static int srcimp_map(struct srcimp *srcimp, struct src *src, struct rsc *input)
+{
+	struct imapper *entry;
+	int i;
+
+	srcimp->rsc.ops->master(&srcimp->rsc);
+	src->rsc.ops->master(&src->rsc);
+	input->ops->master(input);
+
+	/* Program master and conjugate resources */
+	for (i = 0; i < srcimp->rsc.msr; i++) {
+		entry = &srcimp->imappers[i];
+		entry->slot = input->ops->output_slot(input);
+		entry->user = src->rsc.ops->index(&src->rsc);
+		entry->addr = srcimp->rsc.ops->index(&srcimp->rsc);
+		srcimp->mgr->imap_add(srcimp->mgr, entry);
+		srcimp->mapped |= (0x1 << i);
+
+		srcimp->rsc.ops->next_conj(&srcimp->rsc);
+		input->ops->next_conj(input);
+	}
+
+	srcimp->rsc.ops->master(&srcimp->rsc);
+	input->ops->master(input);
+
+	return 0;
+}
+
+static int srcimp_unmap(struct srcimp *srcimp)
+{
+	int i;
+
+	/* Program master and conjugate resources */
+	for (i = 0; i < srcimp->rsc.msr; i++) {
+		if (srcimp->mapped & (0x1 << i)) {
+			srcimp->mgr->imap_delete(srcimp->mgr,
+						 &srcimp->imappers[i]);
+			srcimp->mapped &= ~(0x1 << i);
+		}
+	}
+
+	return 0;
+}
+
+static struct srcimp_rsc_ops srcimp_ops = {
+	.map = srcimp_map,
+	.unmap = srcimp_unmap
+};
+
+static int srcimp_rsc_init(struct srcimp *srcimp,
+			   const struct srcimp_desc *desc,
+			   struct srcimp_mgr *mgr)
+{
+	int err;
+
+	err = rsc_init(&srcimp->rsc, srcimp->idx[0],
+		       SRCIMP, desc->msr, mgr->mgr.hw);
+	if (err)
+		return err;
+
+	/* Reserve memory for imapper nodes */
+	srcimp->imappers = kzalloc(sizeof(struct imapper)*desc->msr,
+				   GFP_KERNEL);
+	if (NULL == srcimp->imappers) {
+		err = -ENOMEM;
+		goto error1;
+	}
+
+	/* Set srcimp specific operations */
+	srcimp->rsc.ops = &srcimp_basic_rsc_ops;
+	srcimp->ops = &srcimp_ops;
+	srcimp->mgr = mgr;
+
+	srcimp->rsc.ops->master(&srcimp->rsc);
+
+	return 0;
+
+error1:
+	rsc_uninit(&srcimp->rsc);
+	return err;
+}
+
+static int srcimp_rsc_uninit(struct srcimp *srcimp)
+{
+	if (NULL != srcimp->imappers) {
+		kfree(srcimp->imappers);
+		srcimp->imappers = NULL;
+	}
+	srcimp->ops = NULL;
+	srcimp->mgr = NULL;
+	rsc_uninit(&srcimp->rsc);
+
+	return 0;
+}
+
+static int get_srcimp_rsc(struct srcimp_mgr *mgr,
+			  const struct srcimp_desc *desc,
+			  struct srcimp **rsrcimp)
+{
+	int err, i;
+	unsigned int idx;
+	struct srcimp *srcimp;
+	unsigned long flags;
+
+	*rsrcimp = NULL;
+
+	/* Allocate mem for SRCIMP resource */
+	srcimp = kzalloc(sizeof(*srcimp), GFP_KERNEL);
+	if (NULL == srcimp) {
+		err = -ENOMEM;
+		return err;
+	}
+
+	/* Check whether there are sufficient SRCIMP resources. */
+	spin_lock_irqsave(&mgr->mgr_lock, flags);
+	for (i = 0; i < desc->msr; i++) {
+		err = mgr_get_resource(&mgr->mgr, 1, &idx);
+		if (err)
+			break;
+
+		srcimp->idx[i] = idx;
+	}
+	spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+	if (err) {
+		printk(KERN_ERR "ctxfi: Can't meet SRCIMP resource request!\n");
+		goto error1;
+	}
+
+	err = srcimp_rsc_init(srcimp, desc, mgr);
+	if (err)
+		goto error1;
+
+	*rsrcimp = srcimp;
+
+	return 0;
+
+error1:
+	spin_lock_irqsave(&mgr->mgr_lock, flags);
+	for (i--; i >= 0; i--)
+		mgr_put_resource(&mgr->mgr, 1, srcimp->idx[i]);
+
+	spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+	kfree(srcimp);
+	return err;
+}
+
+static int put_srcimp_rsc(struct srcimp_mgr *mgr, struct srcimp *srcimp)
+{
+	unsigned long flags;
+	int i;
+
+	spin_lock_irqsave(&mgr->mgr_lock, flags);
+	for (i = 0; i < srcimp->rsc.msr; i++)
+		mgr_put_resource(&mgr->mgr, 1, srcimp->idx[i]);
+
+	spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+	srcimp_rsc_uninit(srcimp);
+	kfree(srcimp);
+
+	return 0;
+}
+
+static int srcimp_map_op(void *data, struct imapper *entry)
+{
+	struct rsc_mgr *mgr = &((struct srcimp_mgr *)data)->mgr;
+	struct hw *hw = mgr->hw;
+
+	hw->srcimp_mgr_set_imaparc(mgr->ctrl_blk, entry->slot);
+	hw->srcimp_mgr_set_imapuser(mgr->ctrl_blk, entry->user);
+	hw->srcimp_mgr_set_imapnxt(mgr->ctrl_blk, entry->next);
+	hw->srcimp_mgr_set_imapaddr(mgr->ctrl_blk, entry->addr);
+	hw->srcimp_mgr_commit_write(mgr->hw, mgr->ctrl_blk);
+
+	return 0;
+}
+
+static int srcimp_imap_add(struct srcimp_mgr *mgr, struct imapper *entry)
+{
+	unsigned long flags;
+	int err;
+
+	spin_lock_irqsave(&mgr->imap_lock, flags);
+	if ((0 == entry->addr) && (mgr->init_imap_added)) {
+		input_mapper_delete(&mgr->imappers,
+				    mgr->init_imap, srcimp_map_op, mgr);
+		mgr->init_imap_added = 0;
+	}
+	err = input_mapper_add(&mgr->imappers, entry, srcimp_map_op, mgr);
+	spin_unlock_irqrestore(&mgr->imap_lock, flags);
+
+	return err;
+}
+
+static int srcimp_imap_delete(struct srcimp_mgr *mgr, struct imapper *entry)
+{
+	unsigned long flags;
+	int err;
+
+	spin_lock_irqsave(&mgr->imap_lock, flags);
+	err = input_mapper_delete(&mgr->imappers, entry, srcimp_map_op, mgr);
+	if (list_empty(&mgr->imappers)) {
+		input_mapper_add(&mgr->imappers, mgr->init_imap,
+				 srcimp_map_op, mgr);
+		mgr->init_imap_added = 1;
+	}
+	spin_unlock_irqrestore(&mgr->imap_lock, flags);
+
+	return err;
+}
+
+int srcimp_mgr_create(void *hw, struct srcimp_mgr **rsrcimp_mgr)
+{
+	int err;
+	struct srcimp_mgr *srcimp_mgr;
+	struct imapper *entry;
+
+	*rsrcimp_mgr = NULL;
+	srcimp_mgr = kzalloc(sizeof(*srcimp_mgr), GFP_KERNEL);
+	if (NULL == srcimp_mgr)
+		return -ENOMEM;
+
+	err = rsc_mgr_init(&srcimp_mgr->mgr, SRCIMP, SRCIMP_RESOURCE_NUM, hw);
+	if (err)
+		goto error1;
+
+	spin_lock_init(&srcimp_mgr->mgr_lock);
+	spin_lock_init(&srcimp_mgr->imap_lock);
+	INIT_LIST_HEAD(&srcimp_mgr->imappers);
+	entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+	if (NULL == entry) {
+		err = -ENOMEM;
+		goto error2;
+	}
+	entry->slot = entry->addr = entry->next = entry->user = 0;
+	list_add(&entry->list, &srcimp_mgr->imappers);
+	srcimp_mgr->init_imap = entry;
+	srcimp_mgr->init_imap_added = 1;
+
+	srcimp_mgr->get_srcimp = get_srcimp_rsc;
+	srcimp_mgr->put_srcimp = put_srcimp_rsc;
+	srcimp_mgr->imap_add = srcimp_imap_add;
+	srcimp_mgr->imap_delete = srcimp_imap_delete;
+
+	*rsrcimp_mgr = srcimp_mgr;
+
+	return 0;
+
+error2:
+	rsc_mgr_uninit(&srcimp_mgr->mgr);
+error1:
+	kfree(srcimp_mgr);
+	return err;
+}
+
+int srcimp_mgr_destroy(struct srcimp_mgr *srcimp_mgr)
+{
+	unsigned long flags;
+
+	/* free src input mapper list */
+	spin_lock_irqsave(&srcimp_mgr->imap_lock, flags);
+	free_input_mapper_list(&srcimp_mgr->imappers);
+	spin_unlock_irqrestore(&srcimp_mgr->imap_lock, flags);
+
+	rsc_mgr_uninit(&srcimp_mgr->mgr);
+	kfree(srcimp_mgr);
+
+	return 0;
+}
diff --git a/sound/pci/ctxfi/ctsrc.h b/sound/pci/ctxfi/ctsrc.h
new file mode 100644
index 000000000000..259366aabcac
--- /dev/null
+++ b/sound/pci/ctxfi/ctsrc.h
@@ -0,0 +1,149 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	ctsrc.h
+ *
+ * @Brief
+ * This file contains the definition of the Sample Rate Convertor
+ * resource management object.
+ *
+ * @Author	Liu Chun
+ * @Date 	May 13 2008
+ *
+ */
+
+#ifndef CTSRC_H
+#define CTSRC_H
+
+#include "ctresource.h"
+#include "ctimap.h"
+#include <linux/spinlock.h>
+#include <linux/list.h>
+
+#define SRC_STATE_OFF	0x0
+#define SRC_STATE_INIT	0x4
+#define SRC_STATE_RUN	0x5
+
+#define SRC_SF_U8	0x0
+#define SRC_SF_S16	0x1
+#define SRC_SF_S24	0x2
+#define SRC_SF_S32	0x3
+#define SRC_SF_F32	0x4
+
+/* Define the descriptor of a src resource */
+enum SRCMODE {
+	MEMRD,		/* Read data from host memory */
+	MEMWR,		/* Write data to host memory */
+	ARCRW,		/* Read from and write to audio ring channel */
+	NUM_SRCMODES
+};
+
+struct src_rsc_ops;
+
+struct src {
+	struct rsc rsc; /* Basic resource info */
+	struct src *intlv; /* Pointer to next interleaved SRC in a series */
+	struct src_rsc_ops *ops; /* SRC specific operations */
+	/* Number of contiguous srcs for interleaved usage */
+	unsigned char multi;
+	unsigned char mode; /* Working mode of this SRC resource */
+};
+
+struct src_rsc_ops {
+	int (*set_state)(struct src *src, unsigned int state);
+	int (*set_bm)(struct src *src, unsigned int bm);
+	int (*set_sf)(struct src *src, unsigned int sf);
+	int (*set_pm)(struct src *src, unsigned int pm);
+	int (*set_rom)(struct src *src, unsigned int rom);
+	int (*set_vo)(struct src *src, unsigned int vo);
+	int (*set_st)(struct src *src, unsigned int st);
+	int (*set_bp)(struct src *src, unsigned int bp);
+	int (*set_cisz)(struct src *src, unsigned int cisz);
+	int (*set_ca)(struct src *src, unsigned int ca);
+	int (*set_sa)(struct src *src, unsigned int sa);
+	int (*set_la)(struct src *src, unsigned int la);
+	int (*set_pitch)(struct src *src, unsigned int pitch);
+	int (*set_clr_zbufs)(struct src *src);
+	int (*commit_write)(struct src *src);
+	int (*get_ca)(struct src *src);
+	int (*init)(struct src *src);
+	struct src* (*next_interleave)(struct src *src);
+};
+
+/* Define src resource request description info */
+struct src_desc {
+	/* Number of contiguous master srcs for interleaved usage */
+	unsigned char multi;
+	unsigned char msr;
+	unsigned char mode; /* Working mode of the requested srcs */
+};
+
+/* Define src manager object */
+struct src_mgr {
+	struct rsc_mgr mgr;	/* Basic resource manager info */
+	spinlock_t mgr_lock;
+
+	 /* request src resource */
+	int (*get_src)(struct src_mgr *mgr,
+		       const struct src_desc *desc, struct src **rsrc);
+	/* return src resource */
+	int (*put_src)(struct src_mgr *mgr, struct src *src);
+	int (*src_enable_s)(struct src_mgr *mgr, struct src *src);
+	int (*src_enable)(struct src_mgr *mgr, struct src *src);
+	int (*src_disable)(struct src_mgr *mgr, struct src *src);
+	int (*commit_write)(struct src_mgr *mgr);
+};
+
+/* Define the descriptor of a SRC Input Mapper resource */
+struct srcimp_mgr;
+struct srcimp_rsc_ops;
+
+struct srcimp {
+	struct rsc rsc;
+	unsigned char idx[8];
+	struct imapper *imappers;
+	unsigned int mapped; /* A bit-map indicating which conj rsc is mapped */
+	struct srcimp_mgr *mgr;
+	struct srcimp_rsc_ops *ops;
+};
+
+struct srcimp_rsc_ops {
+	int (*map)(struct srcimp *srcimp, struct src *user, struct rsc *input);
+	int (*unmap)(struct srcimp *srcimp);
+};
+
+/* Define SRCIMP resource request description info */
+struct srcimp_desc {
+	unsigned int msr;
+};
+
+struct srcimp_mgr {
+	struct rsc_mgr mgr;	/* Basic resource manager info */
+	spinlock_t mgr_lock;
+	spinlock_t imap_lock;
+	struct list_head imappers;
+	struct imapper *init_imap;
+	unsigned int init_imap_added;
+
+	 /* request srcimp resource */
+	int (*get_srcimp)(struct srcimp_mgr *mgr,
+			  const struct srcimp_desc *desc,
+			  struct srcimp **rsrcimp);
+	/* return srcimp resource */
+	int (*put_srcimp)(struct srcimp_mgr *mgr, struct srcimp *srcimp);
+	int (*imap_add)(struct srcimp_mgr *mgr, struct imapper *entry);
+	int (*imap_delete)(struct srcimp_mgr *mgr, struct imapper *entry);
+};
+
+/* Constructor and destructor of SRC resource manager */
+int src_mgr_create(void *hw, struct src_mgr **rsrc_mgr);
+int src_mgr_destroy(struct src_mgr *src_mgr);
+/* Constructor and destructor of SRCIMP resource manager */
+int srcimp_mgr_create(void *hw, struct srcimp_mgr **rsrc_mgr);
+int srcimp_mgr_destroy(struct srcimp_mgr *srcimp_mgr);
+
+#endif /* CTSRC_H */
diff --git a/sound/pci/ctxfi/cttimer.c b/sound/pci/ctxfi/cttimer.c
new file mode 100644
index 000000000000..779c6c3591a5
--- /dev/null
+++ b/sound/pci/ctxfi/cttimer.c
@@ -0,0 +1,441 @@
+/*
+ * PCM timer handling on ctxfi
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ */
+
+#include <linux/slab.h>
+#include <linux/math64.h>
+#include <linux/moduleparam.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include "ctatc.h"
+#include "cthardware.h"
+#include "cttimer.h"
+
+static int use_system_timer;
+MODULE_PARM_DESC(use_system_timer, "Foce to use system-timer");
+module_param(use_system_timer, bool, S_IRUGO);
+
+struct ct_timer_ops {
+	void (*init)(struct ct_timer_instance *);
+	void (*prepare)(struct ct_timer_instance *);
+	void (*start)(struct ct_timer_instance *);
+	void (*stop)(struct ct_timer_instance *);
+	void (*free_instance)(struct ct_timer_instance *);
+	void (*interrupt)(struct ct_timer *);
+	void (*free_global)(struct ct_timer *);
+};
+
+/* timer instance -- assigned to each PCM stream */
+struct ct_timer_instance {
+	spinlock_t lock;
+	struct ct_timer *timer_base;
+	struct ct_atc_pcm *apcm;
+	struct snd_pcm_substream *substream;
+	struct timer_list timer;
+	struct list_head instance_list;
+	struct list_head running_list;
+	unsigned int position;
+	unsigned int frag_count;
+	unsigned int running:1;
+	unsigned int need_update:1;
+};
+
+/* timer instance manager */
+struct ct_timer {
+	spinlock_t lock;		/* global timer lock (for xfitimer) */
+	spinlock_t list_lock;		/* lock for instance list */
+	struct ct_atc *atc;
+	struct ct_timer_ops *ops;
+	struct list_head instance_head;
+	struct list_head running_head;
+	unsigned int wc;		/* current wallclock */
+	unsigned int irq_handling:1;	/* in IRQ handling */
+	unsigned int reprogram:1;	/* need to reprogram the internval */
+	unsigned int running:1;		/* global timer running */
+};
+
+
+/*
+ * system-timer-based updates
+ */
+
+static void ct_systimer_callback(unsigned long data)
+{
+	struct ct_timer_instance *ti = (struct ct_timer_instance *)data;
+	struct snd_pcm_substream *substream = ti->substream;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct ct_atc_pcm *apcm = ti->apcm;
+	unsigned int period_size = runtime->period_size;
+	unsigned int buffer_size = runtime->buffer_size;
+	unsigned long flags;
+	unsigned int position, dist, interval;
+
+	position = substream->ops->pointer(substream);
+	dist = (position + buffer_size - ti->position) % buffer_size;
+	if (dist >= period_size ||
+	    position / period_size != ti->position / period_size) {
+		apcm->interrupt(apcm);
+		ti->position = position;
+	}
+	/* Add extra HZ*5/1000 to avoid overrun issue when recording
+	 * at 8kHz in 8-bit format or at 88kHz in 24-bit format. */
+	interval = ((period_size - (position % period_size))
+		   * HZ + (runtime->rate - 1)) / runtime->rate + HZ * 5 / 1000;
+	spin_lock_irqsave(&ti->lock, flags);
+	if (ti->running)
+		mod_timer(&ti->timer, jiffies + interval);
+	spin_unlock_irqrestore(&ti->lock, flags);
+}
+
+static void ct_systimer_init(struct ct_timer_instance *ti)
+{
+	setup_timer(&ti->timer, ct_systimer_callback,
+		    (unsigned long)ti);
+}
+
+static void ct_systimer_start(struct ct_timer_instance *ti)
+{
+	struct snd_pcm_runtime *runtime = ti->substream->runtime;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ti->lock, flags);
+	ti->running = 1;
+	mod_timer(&ti->timer,
+		  jiffies + (runtime->period_size * HZ +
+			     (runtime->rate - 1)) / runtime->rate);
+	spin_unlock_irqrestore(&ti->lock, flags);
+}
+
+static void ct_systimer_stop(struct ct_timer_instance *ti)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ti->lock, flags);
+	ti->running = 0;
+	del_timer(&ti->timer);
+	spin_unlock_irqrestore(&ti->lock, flags);
+}
+
+static void ct_systimer_prepare(struct ct_timer_instance *ti)
+{
+	ct_systimer_stop(ti);
+	try_to_del_timer_sync(&ti->timer);
+}
+
+#define ct_systimer_free	ct_systimer_prepare
+
+static struct ct_timer_ops ct_systimer_ops = {
+	.init = ct_systimer_init,
+	.free_instance = ct_systimer_free,
+	.prepare = ct_systimer_prepare,
+	.start = ct_systimer_start,
+	.stop = ct_systimer_stop,
+};
+
+
+/*
+ * Handling multiple streams using a global emu20k1 timer irq
+ */
+
+#define CT_TIMER_FREQ	48000
+#define MIN_TICKS	1
+#define MAX_TICKS	((1 << 13) - 1)
+
+static void ct_xfitimer_irq_rearm(struct ct_timer *atimer, int ticks)
+{
+	struct hw *hw = atimer->atc->hw;
+	if (ticks > MAX_TICKS)
+		ticks = MAX_TICKS;
+	hw->set_timer_tick(hw, ticks);
+	if (!atimer->running)
+		hw->set_timer_irq(hw, 1);
+	atimer->running = 1;
+}
+
+static void ct_xfitimer_irq_stop(struct ct_timer *atimer)
+{
+	if (atimer->running) {
+		struct hw *hw = atimer->atc->hw;
+		hw->set_timer_irq(hw, 0);
+		hw->set_timer_tick(hw, 0);
+		atimer->running = 0;
+	}
+}
+
+static inline unsigned int ct_xfitimer_get_wc(struct ct_timer *atimer)
+{
+	struct hw *hw = atimer->atc->hw;
+	return hw->get_wc(hw);
+}
+
+/*
+ * reprogram the timer interval;
+ * checks the running instance list and determines the next timer interval.
+ * also updates the each stream position, returns the number of streams
+ * to call snd_pcm_period_elapsed() appropriately
+ *
+ * call this inside the lock and irq disabled
+ */
+static int ct_xfitimer_reprogram(struct ct_timer *atimer)
+{
+	struct ct_timer_instance *ti;
+	unsigned int min_intr = (unsigned int)-1;
+	int updates = 0;
+	unsigned int wc, diff;
+
+	if (list_empty(&atimer->running_head)) {
+		ct_xfitimer_irq_stop(atimer);
+		atimer->reprogram = 0; /* clear flag */
+		return 0;
+	}
+
+	wc = ct_xfitimer_get_wc(atimer);
+	diff = wc - atimer->wc;
+	atimer->wc = wc;
+	list_for_each_entry(ti, &atimer->running_head, running_list) {
+		if (ti->frag_count > diff)
+			ti->frag_count -= diff;
+		else {
+			unsigned int pos;
+			unsigned int period_size, rate;
+
+			period_size = ti->substream->runtime->period_size;
+			rate = ti->substream->runtime->rate;
+			pos = ti->substream->ops->pointer(ti->substream);
+			if (pos / period_size != ti->position / period_size) {
+				ti->need_update = 1;
+				ti->position = pos;
+				updates++;
+			}
+			pos %= period_size;
+			pos = period_size - pos;
+			ti->frag_count = div_u64((u64)pos * CT_TIMER_FREQ +
+						 rate - 1, rate);
+		}
+		if (ti->frag_count < min_intr)
+			min_intr = ti->frag_count;
+	}
+
+	if (min_intr < MIN_TICKS)
+		min_intr = MIN_TICKS;
+	ct_xfitimer_irq_rearm(atimer, min_intr);
+	atimer->reprogram = 0; /* clear flag */
+	return updates;
+}
+
+/* look through the instance list and call period_elapsed if needed */
+static void ct_xfitimer_check_period(struct ct_timer *atimer)
+{
+	struct ct_timer_instance *ti;
+	unsigned long flags;
+
+	spin_lock_irqsave(&atimer->list_lock, flags);
+	list_for_each_entry(ti, &atimer->instance_head, instance_list) {
+		if (ti->need_update) {
+			ti->need_update = 0;
+			ti->apcm->interrupt(ti->apcm);
+		}
+	}
+	spin_unlock_irqrestore(&atimer->list_lock, flags);
+}
+
+/* Handle timer-interrupt */
+static void ct_xfitimer_callback(struct ct_timer *atimer)
+{
+	int update;
+	unsigned long flags;
+
+	spin_lock_irqsave(&atimer->lock, flags);
+	atimer->irq_handling = 1;
+	do {
+		update = ct_xfitimer_reprogram(atimer);
+		spin_unlock(&atimer->lock);
+		if (update)
+			ct_xfitimer_check_period(atimer);
+		spin_lock(&atimer->lock);
+	} while (atimer->reprogram);
+	atimer->irq_handling = 0;
+	spin_unlock_irqrestore(&atimer->lock, flags);
+}
+
+static void ct_xfitimer_prepare(struct ct_timer_instance *ti)
+{
+	ti->frag_count = ti->substream->runtime->period_size;
+	ti->need_update = 0;
+}
+
+
+/* start/stop the timer */
+static void ct_xfitimer_update(struct ct_timer *atimer)
+{
+	unsigned long flags;
+	int update;
+
+	spin_lock_irqsave(&atimer->lock, flags);
+	if (atimer->irq_handling) {
+		/* reached from IRQ handler; let it handle later */
+		atimer->reprogram = 1;
+		spin_unlock_irqrestore(&atimer->lock, flags);
+		return;
+	}
+
+	ct_xfitimer_irq_stop(atimer);
+	update = ct_xfitimer_reprogram(atimer);
+	spin_unlock_irqrestore(&atimer->lock, flags);
+	if (update)
+		ct_xfitimer_check_period(atimer);
+}
+
+static void ct_xfitimer_start(struct ct_timer_instance *ti)
+{
+	struct ct_timer *atimer = ti->timer_base;
+	unsigned long flags;
+
+	spin_lock_irqsave(&atimer->lock, flags);
+	if (list_empty(&ti->running_list))
+		atimer->wc = ct_xfitimer_get_wc(atimer);
+	list_add(&ti->running_list, &atimer->running_head);
+	spin_unlock_irqrestore(&atimer->lock, flags);
+	ct_xfitimer_update(atimer);
+}
+
+static void ct_xfitimer_stop(struct ct_timer_instance *ti)
+{
+	struct ct_timer *atimer = ti->timer_base;
+	unsigned long flags;
+
+	spin_lock_irqsave(&atimer->lock, flags);
+	list_del_init(&ti->running_list);
+	ti->need_update = 0;
+	spin_unlock_irqrestore(&atimer->lock, flags);
+	ct_xfitimer_update(atimer);
+}
+
+static void ct_xfitimer_free_global(struct ct_timer *atimer)
+{
+	ct_xfitimer_irq_stop(atimer);
+}
+
+static struct ct_timer_ops ct_xfitimer_ops = {
+	.prepare = ct_xfitimer_prepare,
+	.start = ct_xfitimer_start,
+	.stop = ct_xfitimer_stop,
+	.interrupt = ct_xfitimer_callback,
+	.free_global = ct_xfitimer_free_global,
+};
+
+/*
+ * timer instance
+ */
+
+struct ct_timer_instance *
+ct_timer_instance_new(struct ct_timer *atimer, struct ct_atc_pcm *apcm)
+{
+	struct ct_timer_instance *ti;
+
+	ti = kzalloc(sizeof(*ti), GFP_KERNEL);
+	if (!ti)
+		return NULL;
+	spin_lock_init(&ti->lock);
+	INIT_LIST_HEAD(&ti->instance_list);
+	INIT_LIST_HEAD(&ti->running_list);
+	ti->timer_base = atimer;
+	ti->apcm = apcm;
+	ti->substream = apcm->substream;
+	if (atimer->ops->init)
+		atimer->ops->init(ti);
+
+	spin_lock_irq(&atimer->list_lock);
+	list_add(&ti->instance_list, &atimer->instance_head);
+	spin_unlock_irq(&atimer->list_lock);
+
+	return ti;
+}
+
+void ct_timer_prepare(struct ct_timer_instance *ti)
+{
+	if (ti->timer_base->ops->prepare)
+		ti->timer_base->ops->prepare(ti);
+	ti->position = 0;
+	ti->running = 0;
+}
+
+void ct_timer_start(struct ct_timer_instance *ti)
+{
+	struct ct_timer *atimer = ti->timer_base;
+	atimer->ops->start(ti);
+}
+
+void ct_timer_stop(struct ct_timer_instance *ti)
+{
+	struct ct_timer *atimer = ti->timer_base;
+	atimer->ops->stop(ti);
+}
+
+void ct_timer_instance_free(struct ct_timer_instance *ti)
+{
+	struct ct_timer *atimer = ti->timer_base;
+
+	atimer->ops->stop(ti); /* to be sure */
+	if (atimer->ops->free_instance)
+		atimer->ops->free_instance(ti);
+
+	spin_lock_irq(&atimer->list_lock);
+	list_del(&ti->instance_list);
+	spin_unlock_irq(&atimer->list_lock);
+
+	kfree(ti);
+}
+
+/*
+ * timer manager
+ */
+
+static void ct_timer_interrupt(void *data, unsigned int status)
+{
+	struct ct_timer *timer = data;
+
+	/* Interval timer interrupt */
+	if ((status & IT_INT) && timer->ops->interrupt)
+		timer->ops->interrupt(timer);
+}
+
+struct ct_timer *ct_timer_new(struct ct_atc *atc)
+{
+	struct ct_timer *atimer;
+	struct hw *hw;
+
+	atimer = kzalloc(sizeof(*atimer), GFP_KERNEL);
+	if (!atimer)
+		return NULL;
+	spin_lock_init(&atimer->lock);
+	spin_lock_init(&atimer->list_lock);
+	INIT_LIST_HEAD(&atimer->instance_head);
+	INIT_LIST_HEAD(&atimer->running_head);
+	atimer->atc = atc;
+	hw = atc->hw;
+	if (!use_system_timer && hw->set_timer_irq) {
+		snd_printd(KERN_INFO "ctxfi: Use xfi-native timer\n");
+		atimer->ops = &ct_xfitimer_ops;
+		hw->irq_callback_data = atimer;
+		hw->irq_callback = ct_timer_interrupt;
+	} else {
+		snd_printd(KERN_INFO "ctxfi: Use system timer\n");
+		atimer->ops = &ct_systimer_ops;
+	}
+	return atimer;
+}
+
+void ct_timer_free(struct ct_timer *atimer)
+{
+	struct hw *hw = atimer->atc->hw;
+	hw->irq_callback = NULL;
+	if (atimer->ops->free_global)
+		atimer->ops->free_global(atimer);
+	kfree(atimer);
+}
+
diff --git a/sound/pci/ctxfi/cttimer.h b/sound/pci/ctxfi/cttimer.h
new file mode 100644
index 000000000000..979348229291
--- /dev/null
+++ b/sound/pci/ctxfi/cttimer.h
@@ -0,0 +1,29 @@
+/*
+ * Timer handling
+ */
+
+#ifndef __CTTIMER_H
+#define __CTTIMER_H
+
+#include <linux/spinlock.h>
+#include <linux/timer.h>
+#include <linux/list.h>
+
+struct snd_pcm_substream;
+struct ct_atc;
+struct ct_atc_pcm;
+
+struct ct_timer;
+struct ct_timer_instance;
+
+struct ct_timer *ct_timer_new(struct ct_atc *atc);
+void ct_timer_free(struct ct_timer *atimer);
+
+struct ct_timer_instance *
+ct_timer_instance_new(struct ct_timer *atimer, struct ct_atc_pcm *apcm);
+void ct_timer_instance_free(struct ct_timer_instance *ti);
+void ct_timer_start(struct ct_timer_instance *ti);
+void ct_timer_stop(struct ct_timer_instance *ti);
+void ct_timer_prepare(struct ct_timer_instance *ti);
+
+#endif /* __CTTIMER_H */
diff --git a/sound/pci/ctxfi/ctvmem.c b/sound/pci/ctxfi/ctvmem.c
new file mode 100644
index 000000000000..67665a7e43c6
--- /dev/null
+++ b/sound/pci/ctxfi/ctvmem.c
@@ -0,0 +1,250 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File    ctvmem.c
+ *
+ * @Brief
+ * This file contains the implementation of virtual memory management object
+ * for card device.
+ *
+ * @Author Liu Chun
+ * @Date Apr 1 2008
+ */
+
+#include "ctvmem.h"
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/io.h>
+#include <sound/pcm.h>
+
+#define CT_PTES_PER_PAGE (CT_PAGE_SIZE / sizeof(void *))
+#define CT_ADDRS_PER_PAGE (CT_PTES_PER_PAGE * CT_PAGE_SIZE)
+
+/* *
+ * Find or create vm block based on requested @size.
+ * @size must be page aligned.
+ * */
+static struct ct_vm_block *
+get_vm_block(struct ct_vm *vm, unsigned int size)
+{
+	struct ct_vm_block *block = NULL, *entry;
+	struct list_head *pos;
+
+	size = CT_PAGE_ALIGN(size);
+	if (size > vm->size) {
+		printk(KERN_ERR "ctxfi: Fail! No sufficient device virtural "
+				  "memory space available!\n");
+		return NULL;
+	}
+
+	mutex_lock(&vm->lock);
+	list_for_each(pos, &vm->unused) {
+		entry = list_entry(pos, struct ct_vm_block, list);
+		if (entry->size >= size)
+			break; /* found a block that is big enough */
+	}
+	if (pos == &vm->unused)
+		goto out;
+
+	if (entry->size == size) {
+		/* Move the vm node from unused list to used list directly */
+		list_del(&entry->list);
+		list_add(&entry->list, &vm->used);
+		vm->size -= size;
+		block = entry;
+		goto out;
+	}
+
+	block = kzalloc(sizeof(*block), GFP_KERNEL);
+	if (NULL == block)
+		goto out;
+
+	block->addr = entry->addr;
+	block->size = size;
+	list_add(&block->list, &vm->used);
+	entry->addr += size;
+	entry->size -= size;
+	vm->size -= size;
+
+ out:
+	mutex_unlock(&vm->lock);
+	return block;
+}
+
+static void put_vm_block(struct ct_vm *vm, struct ct_vm_block *block)
+{
+	struct ct_vm_block *entry, *pre_ent;
+	struct list_head *pos, *pre;
+
+	block->size = CT_PAGE_ALIGN(block->size);
+
+	mutex_lock(&vm->lock);
+	list_del(&block->list);
+	vm->size += block->size;
+
+	list_for_each(pos, &vm->unused) {
+		entry = list_entry(pos, struct ct_vm_block, list);
+		if (entry->addr >= (block->addr + block->size))
+			break; /* found a position */
+	}
+	if (pos == &vm->unused) {
+		list_add_tail(&block->list, &vm->unused);
+		entry = block;
+	} else {
+		if ((block->addr + block->size) == entry->addr) {
+			entry->addr = block->addr;
+			entry->size += block->size;
+			kfree(block);
+		} else {
+			__list_add(&block->list, pos->prev, pos);
+			entry = block;
+		}
+	}
+
+	pos = &entry->list;
+	pre = pos->prev;
+	while (pre != &vm->unused) {
+		entry = list_entry(pos, struct ct_vm_block, list);
+		pre_ent = list_entry(pre, struct ct_vm_block, list);
+		if ((pre_ent->addr + pre_ent->size) > entry->addr)
+			break;
+
+		pre_ent->size += entry->size;
+		list_del(pos);
+		kfree(entry);
+		pos = pre;
+		pre = pos->prev;
+	}
+	mutex_unlock(&vm->lock);
+}
+
+/* Map host addr (kmalloced/vmalloced) to device logical addr. */
+static struct ct_vm_block *
+ct_vm_map(struct ct_vm *vm, struct snd_pcm_substream *substream, int size)
+{
+	struct ct_vm_block *block;
+	unsigned int pte_start;
+	unsigned i, pages;
+	unsigned long *ptp;
+
+	block = get_vm_block(vm, size);
+	if (block == NULL) {
+		printk(KERN_ERR "ctxfi: No virtual memory block that is big "
+				  "enough to allocate!\n");
+		return NULL;
+	}
+
+	ptp = vm->ptp[0];
+	pte_start = (block->addr >> CT_PAGE_SHIFT);
+	pages = block->size >> CT_PAGE_SHIFT;
+	for (i = 0; i < pages; i++) {
+		unsigned long addr;
+		addr = snd_pcm_sgbuf_get_addr(substream, i << CT_PAGE_SHIFT);
+		ptp[pte_start + i] = addr;
+	}
+
+	block->size = size;
+	return block;
+}
+
+static void ct_vm_unmap(struct ct_vm *vm, struct ct_vm_block *block)
+{
+	/* do unmapping */
+	put_vm_block(vm, block);
+}
+
+/* *
+ * return the host (kmalloced) addr of the @index-th device
+ * page talbe page on success, or NULL on failure.
+ * The first returned NULL indicates the termination.
+ * */
+static void *
+ct_get_ptp_virt(struct ct_vm *vm, int index)
+{
+	void *addr;
+
+	addr = (index >= CT_PTP_NUM) ? NULL : vm->ptp[index];
+
+	return addr;
+}
+
+int ct_vm_create(struct ct_vm **rvm)
+{
+	struct ct_vm *vm;
+	struct ct_vm_block *block;
+	int i;
+
+	*rvm = NULL;
+
+	vm = kzalloc(sizeof(*vm), GFP_KERNEL);
+	if (NULL == vm)
+		return -ENOMEM;
+
+	mutex_init(&vm->lock);
+
+	/* Allocate page table pages */
+	for (i = 0; i < CT_PTP_NUM; i++) {
+		vm->ptp[i] = kmalloc(PAGE_SIZE, GFP_KERNEL);
+		if (NULL == vm->ptp[i])
+			break;
+	}
+	if (!i) {
+		/* no page table pages are allocated */
+		kfree(vm);
+		return -ENOMEM;
+	}
+	vm->size = CT_ADDRS_PER_PAGE * i;
+	/* Initialise remaining ptps */
+	for (; i < CT_PTP_NUM; i++)
+		vm->ptp[i] = NULL;
+
+	vm->map = ct_vm_map;
+	vm->unmap = ct_vm_unmap;
+	vm->get_ptp_virt = ct_get_ptp_virt;
+	INIT_LIST_HEAD(&vm->unused);
+	INIT_LIST_HEAD(&vm->used);
+	block = kzalloc(sizeof(*block), GFP_KERNEL);
+	if (NULL != block) {
+		block->addr = 0;
+		block->size = vm->size;
+		list_add(&block->list, &vm->unused);
+	}
+
+	*rvm = vm;
+	return 0;
+}
+
+/* The caller must ensure no mapping pages are being used
+ * by hardware before calling this function */
+void ct_vm_destroy(struct ct_vm *vm)
+{
+	int i;
+	struct list_head *pos;
+	struct ct_vm_block *entry;
+
+	/* free used and unused list nodes */
+	while (!list_empty(&vm->used)) {
+		pos = vm->used.next;
+		list_del(pos);
+		entry = list_entry(pos, struct ct_vm_block, list);
+		kfree(entry);
+	}
+	while (!list_empty(&vm->unused)) {
+		pos = vm->unused.next;
+		list_del(pos);
+		entry = list_entry(pos, struct ct_vm_block, list);
+		kfree(entry);
+	}
+
+	/* free allocated page table pages */
+	for (i = 0; i < CT_PTP_NUM; i++)
+		kfree(vm->ptp[i]);
+
+	vm->size = 0;
+
+	kfree(vm);
+}
diff --git a/sound/pci/ctxfi/ctvmem.h b/sound/pci/ctxfi/ctvmem.h
new file mode 100644
index 000000000000..01e4fd0386a3
--- /dev/null
+++ b/sound/pci/ctxfi/ctvmem.h
@@ -0,0 +1,61 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File    ctvmem.h
+ *
+ * @Brief
+ * This file contains the definition of virtual memory management object
+ * for card device.
+ *
+ * @Author Liu Chun
+ * @Date Mar 28 2008
+ */
+
+#ifndef CTVMEM_H
+#define CTVMEM_H
+
+#define CT_PTP_NUM	1	/* num of device page table pages */
+
+#include <linux/mutex.h>
+#include <linux/list.h>
+
+/* The chip can handle the page table of 4k pages
+ * (emu20k1 can handle even 8k pages, but we don't use it right now)
+ */
+#define CT_PAGE_SIZE	4096
+#define CT_PAGE_SHIFT	12
+#define CT_PAGE_MASK	(~(PAGE_SIZE - 1))
+#define CT_PAGE_ALIGN(addr)	ALIGN(addr, CT_PAGE_SIZE)
+
+struct ct_vm_block {
+	unsigned int addr;	/* starting logical addr of this block */
+	unsigned int size;	/* size of this device virtual mem block */
+	struct list_head list;
+};
+
+struct snd_pcm_substream;
+
+/* Virtual memory management object for card device */
+struct ct_vm {
+	void *ptp[CT_PTP_NUM];		/* Device page table pages */
+	unsigned int size;		/* Available addr space in bytes */
+	struct list_head unused;	/* List of unused blocks */
+	struct list_head used;		/* List of used blocks */
+	struct mutex lock;
+
+	/* Map host addr (kmalloced/vmalloced) to device logical addr. */
+	struct ct_vm_block *(*map)(struct ct_vm *, struct snd_pcm_substream *,
+				   int size);
+	/* Unmap device logical addr area. */
+	void (*unmap)(struct ct_vm *, struct ct_vm_block *block);
+	void *(*get_ptp_virt)(struct ct_vm *vm, int index);
+};
+
+int ct_vm_create(struct ct_vm **rvm);
+void ct_vm_destroy(struct ct_vm *vm);
+
+#endif /* CTVMEM_H */
diff --git a/sound/pci/ctxfi/xfi.c b/sound/pci/ctxfi/xfi.c
new file mode 100644
index 000000000000..2d3dd89af151
--- /dev/null
+++ b/sound/pci/ctxfi/xfi.c
@@ -0,0 +1,142 @@
+/*
+ * xfi linux driver.
+ *
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ */
+
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/moduleparam.h>
+#include <linux/pci_ids.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include "ctatc.h"
+#include "cthardware.h"
+
+MODULE_AUTHOR("Creative Technology Ltd");
+MODULE_DESCRIPTION("X-Fi driver version 1.03");
+MODULE_LICENSE("GPL v2");
+MODULE_SUPPORTED_DEVICE("{{Creative Labs, Sound Blaster X-Fi}");
+
+static unsigned int reference_rate = 48000;
+static unsigned int multiple = 2;
+MODULE_PARM_DESC(reference_rate, "Reference rate (default=48000)");
+module_param(reference_rate, uint, S_IRUGO);
+MODULE_PARM_DESC(multiple, "Rate multiplier (default=2)");
+module_param(multiple, uint, S_IRUGO);
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for Creative X-Fi driver");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for Creative X-Fi driver");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable Creative X-Fi driver");
+
+static struct pci_device_id ct_pci_dev_ids[] = {
+	/* only X-Fi is supported, so... */
+	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K1),
+	  .driver_data = ATC20K1,
+	},
+	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K2),
+	  .driver_data = ATC20K2,
+	},
+	{ 0, }
+};
+MODULE_DEVICE_TABLE(pci, ct_pci_dev_ids);
+
+static int __devinit
+ct_card_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
+{
+	static int dev;
+	struct snd_card *card;
+	struct ct_atc *atc;
+	int err;
+
+	if (dev >= SNDRV_CARDS)
+		return -ENODEV;
+
+	if (!enable[dev]) {
+		dev++;
+		return -ENOENT;
+	}
+	err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
+	if (err)
+		return err;
+	if ((reference_rate != 48000) && (reference_rate != 44100)) {
+		printk(KERN_ERR "ctxfi: Invalid reference_rate value %u!!!\n",
+		       reference_rate);
+		printk(KERN_ERR "ctxfi: The valid values for reference_rate "
+		       "are 48000 and 44100, Value 48000 is assumed.\n");
+		reference_rate = 48000;
+	}
+	if ((multiple != 1) && (multiple != 2)) {
+		printk(KERN_ERR "ctxfi: Invalid multiple value %u!!!\n",
+		       multiple);
+		printk(KERN_ERR "ctxfi: The valid values for multiple are "
+		       "1 and 2, Value 2 is assumed.\n");
+		multiple = 2;
+	}
+	err = ct_atc_create(card, pci, reference_rate, multiple,
+			    pci_id->driver_data, &atc);
+	if (err < 0)
+		goto error;
+
+	card->private_data = atc;
+
+	/* Create alsa devices supported by this card */
+	err = ct_atc_create_alsa_devs(atc);
+	if (err < 0)
+		goto error;
+
+	strcpy(card->driver, "SB-XFi");
+	strcpy(card->shortname, "Creative X-Fi");
+	snprintf(card->longname, sizeof(card->longname), "%s %s %s",
+		 card->shortname, atc->chip_name, atc->model_name);
+
+	err = snd_card_register(card);
+	if (err < 0)
+		goto error;
+
+	pci_set_drvdata(pci, card);
+	dev++;
+
+	return 0;
+
+error:
+	snd_card_free(card);
+	return err;
+}
+
+static void __devexit ct_card_remove(struct pci_dev *pci)
+{
+	snd_card_free(pci_get_drvdata(pci));
+	pci_set_drvdata(pci, NULL);
+}
+
+static struct pci_driver ct_driver = {
+	.name = "SB-XFi",
+	.id_table = ct_pci_dev_ids,
+	.probe = ct_card_probe,
+	.remove = __devexit_p(ct_card_remove),
+};
+
+static int __init ct_card_init(void)
+{
+	return pci_register_driver(&ct_driver);
+}
+
+static void __exit ct_card_exit(void)
+{
+	pci_unregister_driver(&ct_driver);
+}
+
+module_init(ct_card_init)
+module_exit(ct_card_exit)