Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 3922 insertions, 0 deletions

diff --git a/sound/pci/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c
new file mode 100644
index 000000000000..5f2ffb7efa06
--- /dev/null
+++ b/sound/pci/cs46xx/cs46xx_lib.c
@@ -0,0 +1,3922 @@
+/*
+ *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *                   Abramo Bagnara <abramo@alsa-project.org>
+ *                   Cirrus Logic, Inc.
+ *  Routines for control of Cirrus Logic CS461x chips
+ *
+ *  KNOWN BUGS:
+ *    - Sometimes the SPDIF input DSP tasks get's unsynchronized
+ *      and the SPDIF get somewhat "distorcionated", or/and left right channel
+ *      are swapped. To get around this problem when it happens, mute and unmute 
+ *      the SPDIF input mixer controll.
+ *    - On the Hercules Game Theater XP the amplifier are sometimes turned
+ *      off on inadecuate moments which causes distorcions on sound.
+ *
+ *  TODO:
+ *    - Secondary CODEC on some soundcards
+ *    - SPDIF input support for other sample rates then 48khz
+ *    - Posibility to mix the SPDIF output with analog sources.
+ *    - PCM channels for Center and LFE on secondary codec
+ *
+ *  NOTE: with CONFIG_SND_CS46XX_NEW_DSP unset uses old DSP image (which
+ *        is default configuration), no SPDIF, no secondary codec, no
+ *        multi channel PCM.  But known to work.
+ *
+ *  FINALLY: A credit to the developers Tom and Jordan 
+ *           at Cirrus for have helping me out with the DSP, however we
+ *           still don't have sufficient documentation and technical
+ *           references to be able to implement all fancy feutures
+ *           supported by the cs46xx DSP's. 
+ *           Benny <benny@hostmobility.com>
+ *                
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#include <sound/driver.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/pm.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/gameport.h>
+
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/info.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/cs46xx.h>
+
+#include <asm/io.h>
+
+#include "cs46xx_lib.h"
+#include "dsp_spos.h"
+
+static void amp_voyetra(cs46xx_t *chip, int change);
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+static snd_pcm_ops_t snd_cs46xx_playback_rear_ops;
+static snd_pcm_ops_t snd_cs46xx_playback_indirect_rear_ops;
+static snd_pcm_ops_t snd_cs46xx_playback_clfe_ops;
+static snd_pcm_ops_t snd_cs46xx_playback_indirect_clfe_ops;
+static snd_pcm_ops_t snd_cs46xx_playback_iec958_ops;
+static snd_pcm_ops_t snd_cs46xx_playback_indirect_iec958_ops;
+#endif
+
+static snd_pcm_ops_t snd_cs46xx_playback_ops;
+static snd_pcm_ops_t snd_cs46xx_playback_indirect_ops;
+static snd_pcm_ops_t snd_cs46xx_capture_ops;
+static snd_pcm_ops_t snd_cs46xx_capture_indirect_ops;
+
+static unsigned short snd_cs46xx_codec_read(cs46xx_t *chip,
+					    unsigned short reg,
+					    int codec_index)
+{
+	int count;
+	unsigned short result,tmp;
+	u32 offset = 0;
+	snd_assert ( (codec_index == CS46XX_PRIMARY_CODEC_INDEX) ||
+		     (codec_index == CS46XX_SECONDARY_CODEC_INDEX),
+		     return -EINVAL);
+
+	chip->active_ctrl(chip, 1);
+
+	if (codec_index == CS46XX_SECONDARY_CODEC_INDEX)
+		offset = CS46XX_SECONDARY_CODEC_OFFSET;
+
+	/*
+	 *  1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
+	 *  2. Write ACCDA = Command Data Register = 470h    for data to write to AC97 
+	 *  3. Write ACCTL = Control Register = 460h for initiating the write7---55
+	 *  4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h
+	 *  5. if DCV not cleared, break and return error
+	 *  6. Read ACSTS = Status Register = 464h, check VSTS bit
+	 */
+
+	snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
+
+	tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL);
+	if ((tmp & ACCTL_VFRM) == 0) {
+		snd_printk(KERN_WARNING  "cs46xx: ACCTL_VFRM not set 0x%x\n",tmp);
+		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, (tmp & (~ACCTL_ESYN)) | ACCTL_VFRM );
+		msleep(50);
+		tmp = snd_cs46xx_peekBA0(chip, BA0_ACCTL + offset);
+		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, tmp | ACCTL_ESYN | ACCTL_VFRM );
+
+	}
+
+	/*
+	 *  Setup the AC97 control registers on the CS461x to send the
+	 *  appropriate command to the AC97 to perform the read.
+	 *  ACCAD = Command Address Register = 46Ch
+	 *  ACCDA = Command Data Register = 470h
+	 *  ACCTL = Control Register = 460h
+	 *  set DCV - will clear when process completed
+	 *  set CRW - Read command
+	 *  set VFRM - valid frame enabled
+	 *  set ESYN - ASYNC generation enabled
+	 *  set RSTN - ARST# inactive, AC97 codec not reset
+	 */
+
+	snd_cs46xx_pokeBA0(chip, BA0_ACCAD, reg);
+	snd_cs46xx_pokeBA0(chip, BA0_ACCDA, 0);
+	if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
+		snd_cs46xx_pokeBA0(chip, BA0_ACCTL,/* clear ACCTL_DCV */ ACCTL_CRW | 
+				   ACCTL_VFRM | ACCTL_ESYN |
+				   ACCTL_RSTN);
+		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_CRW |
+				   ACCTL_VFRM | ACCTL_ESYN |
+				   ACCTL_RSTN);
+	} else {
+		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
+				   ACCTL_CRW | ACCTL_VFRM | ACCTL_ESYN |
+				   ACCTL_RSTN);
+	}
+
+	/*
+	 *  Wait for the read to occur.
+	 */
+	for (count = 0; count < 1000; count++) {
+		/*
+		 *  First, we want to wait for a short time.
+	 	 */
+		udelay(10);
+		/*
+		 *  Now, check to see if the read has completed.
+		 *  ACCTL = 460h, DCV should be reset by now and 460h = 17h
+		 */
+		if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV))
+			goto ok1;
+	}
+
+	snd_printk("AC'97 read problem (ACCTL_DCV), reg = 0x%x\n", reg);
+	result = 0xffff;
+	goto end;
+	
+ ok1:
+	/*
+	 *  Wait for the valid status bit to go active.
+	 */
+	for (count = 0; count < 100; count++) {
+		/*
+		 *  Read the AC97 status register.
+		 *  ACSTS = Status Register = 464h
+		 *  VSTS - Valid Status
+		 */
+		if (snd_cs46xx_peekBA0(chip, BA0_ACSTS + offset) & ACSTS_VSTS)
+			goto ok2;
+		udelay(10);
+	}
+	
+	snd_printk("AC'97 read problem (ACSTS_VSTS), codec_index %d, reg = 0x%x\n", codec_index, reg);
+	result = 0xffff;
+	goto end;
+
+ ok2:
+	/*
+	 *  Read the data returned from the AC97 register.
+	 *  ACSDA = Status Data Register = 474h
+	 */
+#if 0
+	printk("e) reg = 0x%x, val = 0x%x, BA0_ACCAD = 0x%x\n", reg,
+			snd_cs46xx_peekBA0(chip, BA0_ACSDA),
+			snd_cs46xx_peekBA0(chip, BA0_ACCAD));
+#endif
+
+	//snd_cs46xx_peekBA0(chip, BA0_ACCAD);
+	result = snd_cs46xx_peekBA0(chip, BA0_ACSDA + offset);
+ end:
+	chip->active_ctrl(chip, -1);
+	return result;
+}
+
+static unsigned short snd_cs46xx_ac97_read(ac97_t * ac97,
+					    unsigned short reg)
+{
+	cs46xx_t *chip = ac97->private_data;
+	unsigned short val;
+	int codec_index = ac97->num;
+
+	snd_assert(codec_index == CS46XX_PRIMARY_CODEC_INDEX ||
+		   codec_index == CS46XX_SECONDARY_CODEC_INDEX,
+		   return 0xffff);
+
+	val = snd_cs46xx_codec_read(chip, reg, codec_index);
+
+	return val;
+}
+
+
+static void snd_cs46xx_codec_write(cs46xx_t *chip,
+				   unsigned short reg,
+				   unsigned short val,
+				   int codec_index)
+{
+	int count;
+
+	snd_assert ((codec_index == CS46XX_PRIMARY_CODEC_INDEX) ||
+		    (codec_index == CS46XX_SECONDARY_CODEC_INDEX),
+		    return);
+
+	chip->active_ctrl(chip, 1);
+
+	/*
+	 *  1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
+	 *  2. Write ACCDA = Command Data Register = 470h    for data to write to AC97
+	 *  3. Write ACCTL = Control Register = 460h for initiating the write
+	 *  4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h
+	 *  5. if DCV not cleared, break and return error
+	 */
+
+	/*
+	 *  Setup the AC97 control registers on the CS461x to send the
+	 *  appropriate command to the AC97 to perform the read.
+	 *  ACCAD = Command Address Register = 46Ch
+	 *  ACCDA = Command Data Register = 470h
+	 *  ACCTL = Control Register = 460h
+	 *  set DCV - will clear when process completed
+	 *  reset CRW - Write command
+	 *  set VFRM - valid frame enabled
+	 *  set ESYN - ASYNC generation enabled
+	 *  set RSTN - ARST# inactive, AC97 codec not reset
+         */
+	snd_cs46xx_pokeBA0(chip, BA0_ACCAD , reg);
+	snd_cs46xx_pokeBA0(chip, BA0_ACCDA , val);
+	snd_cs46xx_peekBA0(chip, BA0_ACCTL);
+
+	if (codec_index == CS46XX_PRIMARY_CODEC_INDEX) {
+		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, /* clear ACCTL_DCV */ ACCTL_VFRM |
+				   ACCTL_ESYN | ACCTL_RSTN);
+		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_VFRM |
+				   ACCTL_ESYN | ACCTL_RSTN);
+	} else {
+		snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_DCV | ACCTL_TC |
+				   ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
+	}
+
+	for (count = 0; count < 4000; count++) {
+		/*
+		 *  First, we want to wait for a short time.
+		 */
+		udelay(10);
+		/*
+		 *  Now, check to see if the write has completed.
+		 *  ACCTL = 460h, DCV should be reset by now and 460h = 07h
+		 */
+		if (!(snd_cs46xx_peekBA0(chip, BA0_ACCTL) & ACCTL_DCV)) {
+			goto end;
+		}
+	}
+	snd_printk("AC'97 write problem, codec_index = %d, reg = 0x%x, val = 0x%x\n", codec_index, reg, val);
+ end:
+	chip->active_ctrl(chip, -1);
+}
+
+static void snd_cs46xx_ac97_write(ac97_t *ac97,
+				   unsigned short reg,
+				   unsigned short val)
+{
+	cs46xx_t *chip = ac97->private_data;
+	int codec_index = ac97->num;
+
+	snd_assert(codec_index == CS46XX_PRIMARY_CODEC_INDEX ||
+		   codec_index == CS46XX_SECONDARY_CODEC_INDEX,
+		   return);
+
+	snd_cs46xx_codec_write(chip, reg, val, codec_index);
+}
+
+
+/*
+ *  Chip initialization
+ */
+
+int snd_cs46xx_download(cs46xx_t *chip,
+			u32 *src,
+                        unsigned long offset,
+                        unsigned long len)
+{
+	void __iomem *dst;
+	unsigned int bank = offset >> 16;
+	offset = offset & 0xffff;
+
+	snd_assert(!(offset & 3) && !(len & 3), return -EINVAL);
+	dst = chip->region.idx[bank+1].remap_addr + offset;
+	len /= sizeof(u32);
+
+	/* writel already converts 32-bit value to right endianess */
+	while (len-- > 0) {
+		writel(*src++, dst);
+		dst += sizeof(u32);
+	}
+	return 0;
+}
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+
+#include "imgs/cwc4630.h"
+#include "imgs/cwcasync.h"
+#include "imgs/cwcsnoop.h"
+#include "imgs/cwcbinhack.h"
+#include "imgs/cwcdma.h"
+
+int snd_cs46xx_clear_BA1(cs46xx_t *chip,
+                         unsigned long offset,
+                         unsigned long len) 
+{
+	void __iomem *dst;
+	unsigned int bank = offset >> 16;
+	offset = offset & 0xffff;
+
+	snd_assert(!(offset & 3) && !(len & 3), return -EINVAL);
+	dst = chip->region.idx[bank+1].remap_addr + offset;
+	len /= sizeof(u32);
+
+	/* writel already converts 32-bit value to right endianess */
+	while (len-- > 0) {
+		writel(0, dst);
+		dst += sizeof(u32);
+	}
+	return 0;
+}
+
+#else /* old DSP image */
+
+#include "cs46xx_image.h"
+
+int snd_cs46xx_download_image(cs46xx_t *chip)
+{
+	int idx, err;
+	unsigned long offset = 0;
+
+	for (idx = 0; idx < BA1_MEMORY_COUNT; idx++) {
+		if ((err = snd_cs46xx_download(chip,
+					       &BA1Struct.map[offset],
+					       BA1Struct.memory[idx].offset,
+					       BA1Struct.memory[idx].size)) < 0)
+			return err;
+		offset += BA1Struct.memory[idx].size >> 2;
+	}	
+	return 0;
+}
+#endif /* CONFIG_SND_CS46XX_NEW_DSP */
+
+/*
+ *  Chip reset
+ */
+
+static void snd_cs46xx_reset(cs46xx_t *chip)
+{
+	int idx;
+
+	/*
+	 *  Write the reset bit of the SP control register.
+	 */
+	snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RSTSP);
+
+	/*
+	 *  Write the control register.
+	 */
+	snd_cs46xx_poke(chip, BA1_SPCR, SPCR_DRQEN);
+
+	/*
+	 *  Clear the trap registers.
+	 */
+	for (idx = 0; idx < 8; idx++) {
+		snd_cs46xx_poke(chip, BA1_DREG, DREG_REGID_TRAP_SELECT + idx);
+		snd_cs46xx_poke(chip, BA1_TWPR, 0xFFFF);
+	}
+	snd_cs46xx_poke(chip, BA1_DREG, 0);
+
+	/*
+	 *  Set the frame timer to reflect the number of cycles per frame.
+	 */
+	snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
+}
+
+static int cs46xx_wait_for_fifo(cs46xx_t * chip,int retry_timeout) 
+{
+	u32 i, status = 0;
+	/*
+	 * Make sure the previous FIFO write operation has completed.
+	 */
+	for(i = 0; i < 50; i++){
+		status = snd_cs46xx_peekBA0(chip, BA0_SERBST);
+    
+		if( !(status & SERBST_WBSY) )
+			break;
+
+		mdelay(retry_timeout);
+	}
+  
+	if(status & SERBST_WBSY) {
+		snd_printk( KERN_ERR "cs46xx: failure waiting for FIFO command to complete\n");
+
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void snd_cs46xx_clear_serial_FIFOs(cs46xx_t *chip)
+{
+	int idx, powerdown = 0;
+	unsigned int tmp;
+
+	/*
+	 *  See if the devices are powered down.  If so, we must power them up first
+	 *  or they will not respond.
+	 */
+	tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
+	if (!(tmp & CLKCR1_SWCE)) {
+		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
+		powerdown = 1;
+	}
+
+	/*
+	 *  We want to clear out the serial port FIFOs so we don't end up playing
+	 *  whatever random garbage happens to be in them.  We fill the sample FIFOS
+	 *  with zero (silence).
+	 */
+	snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0);
+
+	/*
+	 *  Fill all 256 sample FIFO locations.
+	 */
+	for (idx = 0; idx < 0xFF; idx++) {
+		/*
+		 *  Make sure the previous FIFO write operation has completed.
+		 */
+		if (cs46xx_wait_for_fifo(chip,1)) {
+			snd_printdd ("failed waiting for FIFO at addr (%02X)\n",idx);
+
+			if (powerdown)
+				snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
+          
+			break;
+		}
+		/*
+		 *  Write the serial port FIFO index.
+		 */
+		snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
+		/*
+		 *  Tell the serial port to load the new value into the FIFO location.
+		 */
+		snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
+	}
+	/*
+	 *  Now, if we powered up the devices, then power them back down again.
+	 *  This is kinda ugly, but should never happen.
+	 */
+	if (powerdown)
+		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
+}
+
+static void snd_cs46xx_proc_start(cs46xx_t *chip)
+{
+	int cnt;
+
+	/*
+	 *  Set the frame timer to reflect the number of cycles per frame.
+	 */
+	snd_cs46xx_poke(chip, BA1_FRMT, 0xadf);
+	/*
+	 *  Turn on the run, run at frame, and DMA enable bits in the local copy of
+	 *  the SP control register.
+	 */
+	snd_cs46xx_poke(chip, BA1_SPCR, SPCR_RUN | SPCR_RUNFR | SPCR_DRQEN);
+	/*
+	 *  Wait until the run at frame bit resets itself in the SP control
+	 *  register.
+	 */
+	for (cnt = 0; cnt < 25; cnt++) {
+		udelay(50);
+		if (!(snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR))
+			break;
+	}
+
+	if (snd_cs46xx_peek(chip, BA1_SPCR) & SPCR_RUNFR)
+		snd_printk("SPCR_RUNFR never reset\n");
+}
+
+static void snd_cs46xx_proc_stop(cs46xx_t *chip)
+{
+	/*
+	 *  Turn off the run, run at frame, and DMA enable bits in the local copy of
+	 *  the SP control register.
+	 */
+	snd_cs46xx_poke(chip, BA1_SPCR, 0);
+}
+
+/*
+ *  Sample rate routines
+ */
+
+#define GOF_PER_SEC 200
+
+static void snd_cs46xx_set_play_sample_rate(cs46xx_t *chip, unsigned int rate)
+{
+	unsigned long flags;
+	unsigned int tmp1, tmp2;
+	unsigned int phiIncr;
+	unsigned int correctionPerGOF, correctionPerSec;
+
+	/*
+	 *  Compute the values used to drive the actual sample rate conversion.
+	 *  The following formulas are being computed, using inline assembly
+	 *  since we need to use 64 bit arithmetic to compute the values:
+	 *
+	 *  phiIncr = floor((Fs,in * 2^26) / Fs,out)
+	 *  correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
+         *                                   GOF_PER_SEC)
+         *  ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M
+         *                       GOF_PER_SEC * correctionPerGOF
+	 *
+	 *  i.e.
+	 *
+	 *  phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out)
+	 *  correctionPerGOF:correctionPerSec =
+	 *      dividend:remainder(ulOther / GOF_PER_SEC)
+	 */
+	tmp1 = rate << 16;
+	phiIncr = tmp1 / 48000;
+	tmp1 -= phiIncr * 48000;
+	tmp1 <<= 10;
+	phiIncr <<= 10;
+	tmp2 = tmp1 / 48000;
+	phiIncr += tmp2;
+	tmp1 -= tmp2 * 48000;
+	correctionPerGOF = tmp1 / GOF_PER_SEC;
+	tmp1 -= correctionPerGOF * GOF_PER_SEC;
+	correctionPerSec = tmp1;
+
+	/*
+	 *  Fill in the SampleRateConverter control block.
+	 */
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	snd_cs46xx_poke(chip, BA1_PSRC,
+	  ((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
+	snd_cs46xx_poke(chip, BA1_PPI, phiIncr);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+}
+
+static void snd_cs46xx_set_capture_sample_rate(cs46xx_t *chip, unsigned int rate)
+{
+	unsigned long flags;
+	unsigned int phiIncr, coeffIncr, tmp1, tmp2;
+	unsigned int correctionPerGOF, correctionPerSec, initialDelay;
+	unsigned int frameGroupLength, cnt;
+
+	/*
+	 *  We can only decimate by up to a factor of 1/9th the hardware rate.
+	 *  Correct the value if an attempt is made to stray outside that limit.
+	 */
+	if ((rate * 9) < 48000)
+		rate = 48000 / 9;
+
+	/*
+	 *  We can not capture at at rate greater than the Input Rate (48000).
+	 *  Return an error if an attempt is made to stray outside that limit.
+	 */
+	if (rate > 48000)
+		rate = 48000;
+
+	/*
+	 *  Compute the values used to drive the actual sample rate conversion.
+	 *  The following formulas are being computed, using inline assembly
+	 *  since we need to use 64 bit arithmetic to compute the values:
+	 *
+	 *     coeffIncr = -floor((Fs,out * 2^23) / Fs,in)
+	 *     phiIncr = floor((Fs,in * 2^26) / Fs,out)
+	 *     correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
+	 *                                GOF_PER_SEC)
+	 *     correctionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -
+	 *                          GOF_PER_SEC * correctionPerGOF
+	 *     initialDelay = ceil((24 * Fs,in) / Fs,out)
+	 *
+	 * i.e.
+	 *
+	 *     coeffIncr = neg(dividend((Fs,out * 2^23) / Fs,in))
+	 *     phiIncr:ulOther = dividend:remainder((Fs,in * 2^26) / Fs,out)
+	 *     correctionPerGOF:correctionPerSec =
+	 * 	    dividend:remainder(ulOther / GOF_PER_SEC)
+	 *     initialDelay = dividend(((24 * Fs,in) + Fs,out - 1) / Fs,out)
+	 */
+
+	tmp1 = rate << 16;
+	coeffIncr = tmp1 / 48000;
+	tmp1 -= coeffIncr * 48000;
+	tmp1 <<= 7;
+	coeffIncr <<= 7;
+	coeffIncr += tmp1 / 48000;
+	coeffIncr ^= 0xFFFFFFFF;
+	coeffIncr++;
+	tmp1 = 48000 << 16;
+	phiIncr = tmp1 / rate;
+	tmp1 -= phiIncr * rate;
+	tmp1 <<= 10;
+	phiIncr <<= 10;
+	tmp2 = tmp1 / rate;
+	phiIncr += tmp2;
+	tmp1 -= tmp2 * rate;
+	correctionPerGOF = tmp1 / GOF_PER_SEC;
+	tmp1 -= correctionPerGOF * GOF_PER_SEC;
+	correctionPerSec = tmp1;
+	initialDelay = ((48000 * 24) + rate - 1) / rate;
+
+	/*
+	 *  Fill in the VariDecimate control block.
+	 */
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	snd_cs46xx_poke(chip, BA1_CSRC,
+		((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
+	snd_cs46xx_poke(chip, BA1_CCI, coeffIncr);
+	snd_cs46xx_poke(chip, BA1_CD,
+		(((BA1_VARIDEC_BUF_1 + (initialDelay << 2)) << 16) & 0xFFFF0000) | 0x80);
+	snd_cs46xx_poke(chip, BA1_CPI, phiIncr);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+
+	/*
+	 *  Figure out the frame group length for the write back task.  Basically,
+	 *  this is just the factors of 24000 (2^6*3*5^3) that are not present in
+	 *  the output sample rate.
+	 */
+	frameGroupLength = 1;
+	for (cnt = 2; cnt <= 64; cnt *= 2) {
+		if (((rate / cnt) * cnt) != rate)
+			frameGroupLength *= 2;
+	}
+	if (((rate / 3) * 3) != rate) {
+		frameGroupLength *= 3;
+	}
+	for (cnt = 5; cnt <= 125; cnt *= 5) {
+		if (((rate / cnt) * cnt) != rate) 
+			frameGroupLength *= 5;
+        }
+
+	/*
+	 * Fill in the WriteBack control block.
+	 */
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	snd_cs46xx_poke(chip, BA1_CFG1, frameGroupLength);
+	snd_cs46xx_poke(chip, BA1_CFG2, (0x00800000 | frameGroupLength));
+	snd_cs46xx_poke(chip, BA1_CCST, 0x0000FFFF);
+	snd_cs46xx_poke(chip, BA1_CSPB, ((65536 * rate) / 24000));
+	snd_cs46xx_poke(chip, (BA1_CSPB + 4), 0x0000FFFF);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+}
+
+/*
+ *  PCM part
+ */
+
+static void snd_cs46xx_pb_trans_copy(snd_pcm_substream_t *substream,
+				     snd_pcm_indirect_t *rec, size_t bytes)
+{
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	cs46xx_pcm_t * cpcm = runtime->private_data;
+	memcpy(cpcm->hw_buf.area + rec->hw_data, runtime->dma_area + rec->sw_data, bytes);
+}
+
+static int snd_cs46xx_playback_transfer(snd_pcm_substream_t *substream)
+{
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	cs46xx_pcm_t * cpcm = runtime->private_data;
+	snd_pcm_indirect_playback_transfer(substream, &cpcm->pcm_rec, snd_cs46xx_pb_trans_copy);
+	return 0;
+}
+
+static void snd_cs46xx_cp_trans_copy(snd_pcm_substream_t *substream,
+				     snd_pcm_indirect_t *rec, size_t bytes)
+{
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	memcpy(runtime->dma_area + rec->sw_data,
+	       chip->capt.hw_buf.area + rec->hw_data, bytes);
+}
+
+static int snd_cs46xx_capture_transfer(snd_pcm_substream_t *substream)
+{
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+	snd_pcm_indirect_capture_transfer(substream, &chip->capt.pcm_rec, snd_cs46xx_cp_trans_copy);
+	return 0;
+}
+
+static snd_pcm_uframes_t snd_cs46xx_playback_direct_pointer(snd_pcm_substream_t * substream)
+{
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+	size_t ptr;
+	cs46xx_pcm_t *cpcm = substream->runtime->private_data;
+	snd_assert (cpcm->pcm_channel,return -ENXIO);
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
+#else
+	ptr = snd_cs46xx_peek(chip, BA1_PBA);
+#endif
+	ptr -= cpcm->hw_buf.addr;
+	return ptr >> cpcm->shift;
+}
+
+static snd_pcm_uframes_t snd_cs46xx_playback_indirect_pointer(snd_pcm_substream_t * substream)
+{
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+	size_t ptr;
+	cs46xx_pcm_t *cpcm = substream->runtime->private_data;
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	snd_assert (cpcm->pcm_channel,return -ENXIO);
+	ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
+#else
+	ptr = snd_cs46xx_peek(chip, BA1_PBA);
+#endif
+	ptr -= cpcm->hw_buf.addr;
+	return snd_pcm_indirect_playback_pointer(substream, &cpcm->pcm_rec, ptr);
+}
+
+static snd_pcm_uframes_t snd_cs46xx_capture_direct_pointer(snd_pcm_substream_t * substream)
+{
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+	size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
+	return ptr >> chip->capt.shift;
+}
+
+static snd_pcm_uframes_t snd_cs46xx_capture_indirect_pointer(snd_pcm_substream_t * substream)
+{
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+	size_t ptr = snd_cs46xx_peek(chip, BA1_CBA) - chip->capt.hw_buf.addr;
+	return snd_pcm_indirect_capture_pointer(substream, &chip->capt.pcm_rec, ptr);
+}
+
+static int snd_cs46xx_playback_trigger(snd_pcm_substream_t * substream,
+				       int cmd)
+{
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+	/*snd_pcm_runtime_t *runtime = substream->runtime;*/
+	int result = 0;
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	cs46xx_pcm_t *cpcm = substream->runtime->private_data;
+	if (! cpcm->pcm_channel) {
+		return -ENXIO;
+	}
+#endif
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+		/* magic value to unmute PCM stream  playback volume */
+		snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 
+				       SCBVolumeCtrl) << 2, 0x80008000);
+
+		if (cpcm->pcm_channel->unlinked)
+			cs46xx_dsp_pcm_link(chip,cpcm->pcm_channel);
+
+		if (substream->runtime->periods != CS46XX_FRAGS)
+			snd_cs46xx_playback_transfer(substream);
+#else
+		spin_lock(&chip->reg_lock);
+		if (substream->runtime->periods != CS46XX_FRAGS)
+			snd_cs46xx_playback_transfer(substream);
+		{ unsigned int tmp;
+		tmp = snd_cs46xx_peek(chip, BA1_PCTL);
+		tmp &= 0x0000ffff;
+		snd_cs46xx_poke(chip, BA1_PCTL, chip->play_ctl | tmp);
+		}
+		spin_unlock(&chip->reg_lock);
+#endif
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+		/* magic mute channel */
+		snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 
+				       SCBVolumeCtrl) << 2, 0xffffffff);
+
+		if (!cpcm->pcm_channel->unlinked)
+			cs46xx_dsp_pcm_unlink(chip,cpcm->pcm_channel);
+#else
+		spin_lock(&chip->reg_lock);
+		{ unsigned int tmp;
+		tmp = snd_cs46xx_peek(chip, BA1_PCTL);
+		tmp &= 0x0000ffff;
+		snd_cs46xx_poke(chip, BA1_PCTL, tmp);
+		}
+		spin_unlock(&chip->reg_lock);
+#endif
+		break;
+	default:
+		result = -EINVAL;
+		break;
+	}
+
+	return result;
+}
+
+static int snd_cs46xx_capture_trigger(snd_pcm_substream_t * substream,
+				      int cmd)
+{
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+	unsigned int tmp;
+	int result = 0;
+
+	spin_lock(&chip->reg_lock);
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+		tmp = snd_cs46xx_peek(chip, BA1_CCTL);
+		tmp &= 0xffff0000;
+		snd_cs46xx_poke(chip, BA1_CCTL, chip->capt.ctl | tmp);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+		tmp = snd_cs46xx_peek(chip, BA1_CCTL);
+		tmp &= 0xffff0000;
+		snd_cs46xx_poke(chip, BA1_CCTL, tmp);
+		break;
+	default:
+		result = -EINVAL;
+		break;
+	}
+	spin_unlock(&chip->reg_lock);
+
+	return result;
+}
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+static int _cs46xx_adjust_sample_rate (cs46xx_t *chip, cs46xx_pcm_t *cpcm,
+				       int sample_rate) 
+{
+
+	/* If PCMReaderSCB and SrcTaskSCB not created yet ... */
+	if ( cpcm->pcm_channel == NULL) {
+		cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate, 
+								   cpcm, cpcm->hw_buf.addr,cpcm->pcm_channel_id);
+		if (cpcm->pcm_channel == NULL) {
+			snd_printk(KERN_ERR "cs46xx: failed to create virtual PCM channel\n");
+			return -ENOMEM;
+		}
+		cpcm->pcm_channel->sample_rate = sample_rate;
+	} else
+	/* if sample rate is changed */
+	if ((int)cpcm->pcm_channel->sample_rate != sample_rate) {
+		int unlinked = cpcm->pcm_channel->unlinked;
+		cs46xx_dsp_destroy_pcm_channel (chip,cpcm->pcm_channel);
+
+		if ( (cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate, cpcm, 
+									 cpcm->hw_buf.addr,
+									 cpcm->pcm_channel_id)) == NULL) {
+			snd_printk(KERN_ERR "cs46xx: failed to re-create virtual PCM channel\n");
+			return -ENOMEM;
+		}
+
+		if (!unlinked) cs46xx_dsp_pcm_link (chip,cpcm->pcm_channel);
+		cpcm->pcm_channel->sample_rate = sample_rate;
+	}
+
+	return 0;
+}
+#endif
+
+
+static int snd_cs46xx_playback_hw_params(snd_pcm_substream_t * substream,
+					 snd_pcm_hw_params_t * hw_params)
+{
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	cs46xx_pcm_t *cpcm;
+	int err;
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+	int sample_rate = params_rate(hw_params);
+	int period_size = params_period_bytes(hw_params);
+#endif
+	cpcm = runtime->private_data;
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	snd_assert (sample_rate != 0, return -ENXIO);
+
+	down (&chip->spos_mutex);
+
+	if (_cs46xx_adjust_sample_rate (chip,cpcm,sample_rate)) {
+		up (&chip->spos_mutex);
+		return -ENXIO;
+	}
+
+	snd_assert (cpcm->pcm_channel != NULL);
+	if (!cpcm->pcm_channel) {
+		up (&chip->spos_mutex);
+		return -ENXIO;
+	}
+
+
+	if (cs46xx_dsp_pcm_channel_set_period (chip,cpcm->pcm_channel,period_size)) {
+		 up (&chip->spos_mutex);
+		 return -EINVAL;
+	 }
+
+	snd_printdd ("period_size (%d), periods (%d) buffer_size(%d)\n",
+		     period_size, params_periods(hw_params),
+		     params_buffer_bytes(hw_params));
+#endif
+
+	if (params_periods(hw_params) == CS46XX_FRAGS) {
+		if (runtime->dma_area != cpcm->hw_buf.area)
+			snd_pcm_lib_free_pages(substream);
+		runtime->dma_area = cpcm->hw_buf.area;
+		runtime->dma_addr = cpcm->hw_buf.addr;
+		runtime->dma_bytes = cpcm->hw_buf.bytes;
+
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+		if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
+			substream->ops = &snd_cs46xx_playback_ops;
+		} else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
+			substream->ops = &snd_cs46xx_playback_rear_ops;
+		} else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
+			substream->ops = &snd_cs46xx_playback_clfe_ops;
+		} else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
+			substream->ops = &snd_cs46xx_playback_iec958_ops;
+		} else {
+			snd_assert(0);
+		}
+#else
+		substream->ops = &snd_cs46xx_playback_ops;
+#endif
+
+	} else {
+		if (runtime->dma_area == cpcm->hw_buf.area) {
+			runtime->dma_area = NULL;
+			runtime->dma_addr = 0;
+			runtime->dma_bytes = 0;
+		}
+		if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0) {
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+			up (&chip->spos_mutex);
+#endif
+			return err;
+		}
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+		if (cpcm->pcm_channel_id == DSP_PCM_MAIN_CHANNEL) {
+			substream->ops = &snd_cs46xx_playback_indirect_ops;
+		} else if (cpcm->pcm_channel_id == DSP_PCM_REAR_CHANNEL) {
+			substream->ops = &snd_cs46xx_playback_indirect_rear_ops;
+		} else if (cpcm->pcm_channel_id == DSP_PCM_CENTER_LFE_CHANNEL) {
+			substream->ops = &snd_cs46xx_playback_indirect_clfe_ops;
+		} else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
+			substream->ops = &snd_cs46xx_playback_indirect_iec958_ops;
+		} else {
+			snd_assert(0);
+		}
+#else
+		substream->ops = &snd_cs46xx_playback_indirect_ops;
+#endif
+
+	}
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	up (&chip->spos_mutex);
+#endif
+
+	return 0;
+}
+
+static int snd_cs46xx_playback_hw_free(snd_pcm_substream_t * substream)
+{
+	/*cs46xx_t *chip = snd_pcm_substream_chip(substream);*/
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	cs46xx_pcm_t *cpcm;
+
+	cpcm = runtime->private_data;
+
+	/* if play_back open fails, then this function
+	   is called and cpcm can actually be NULL here */
+	if (!cpcm) return -ENXIO;
+
+	if (runtime->dma_area != cpcm->hw_buf.area)
+		snd_pcm_lib_free_pages(substream);
+    
+	runtime->dma_area = NULL;
+	runtime->dma_addr = 0;
+	runtime->dma_bytes = 0;
+
+	return 0;
+}
+
+static int snd_cs46xx_playback_prepare(snd_pcm_substream_t * substream)
+{
+	unsigned int tmp;
+	unsigned int pfie;
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	cs46xx_pcm_t *cpcm;
+
+	cpcm = runtime->private_data;
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+    snd_assert (cpcm->pcm_channel != NULL, return -ENXIO);
+
+	pfie = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2 );
+	pfie &= ~0x0000f03f;
+#else
+	/* old dsp */
+	pfie = snd_cs46xx_peek(chip, BA1_PFIE);
+ 	pfie &= ~0x0000f03f;
+#endif
+
+	cpcm->shift = 2;
+	/* if to convert from stereo to mono */
+	if (runtime->channels == 1) {
+		cpcm->shift--;
+		pfie |= 0x00002000;
+	}
+	/* if to convert from 8 bit to 16 bit */
+	if (snd_pcm_format_width(runtime->format) == 8) {
+		cpcm->shift--;
+		pfie |= 0x00001000;
+	}
+	/* if to convert to unsigned */
+	if (snd_pcm_format_unsigned(runtime->format))
+		pfie |= 0x00008000;
+
+	/* Never convert byte order when sample stream is 8 bit */
+	if (snd_pcm_format_width(runtime->format) != 8) {
+		/* convert from big endian to little endian */
+		if (snd_pcm_format_big_endian(runtime->format))
+			pfie |= 0x00004000;
+	}
+	
+	memset(&cpcm->pcm_rec, 0, sizeof(cpcm->pcm_rec));
+	cpcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
+	cpcm->pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << cpcm->shift;
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+
+	tmp = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2);
+	tmp &= ~0x000003ff;
+	tmp |= (4 << cpcm->shift) - 1;
+	/* playback transaction count register */
+	snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address) << 2, tmp);
+
+	/* playback format && interrupt enable */
+	snd_cs46xx_poke(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2, pfie | cpcm->pcm_channel->pcm_slot);
+#else
+	snd_cs46xx_poke(chip, BA1_PBA, cpcm->hw_buf.addr);
+	tmp = snd_cs46xx_peek(chip, BA1_PDTC);
+	tmp &= ~0x000003ff;
+	tmp |= (4 << cpcm->shift) - 1;
+	snd_cs46xx_poke(chip, BA1_PDTC, tmp);
+	snd_cs46xx_poke(chip, BA1_PFIE, pfie);
+	snd_cs46xx_set_play_sample_rate(chip, runtime->rate);
+#endif
+
+	return 0;
+}
+
+static int snd_cs46xx_capture_hw_params(snd_pcm_substream_t * substream,
+					snd_pcm_hw_params_t * hw_params)
+{
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	int err;
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	cs46xx_dsp_pcm_ostream_set_period (chip, params_period_bytes(hw_params));
+#endif
+	if (runtime->periods == CS46XX_FRAGS) {
+		if (runtime->dma_area != chip->capt.hw_buf.area)
+			snd_pcm_lib_free_pages(substream);
+		runtime->dma_area = chip->capt.hw_buf.area;
+		runtime->dma_addr = chip->capt.hw_buf.addr;
+		runtime->dma_bytes = chip->capt.hw_buf.bytes;
+		substream->ops = &snd_cs46xx_capture_ops;
+	} else {
+		if (runtime->dma_area == chip->capt.hw_buf.area) {
+			runtime->dma_area = NULL;
+			runtime->dma_addr = 0;
+			runtime->dma_bytes = 0;
+		}
+		if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
+			return err;
+		substream->ops = &snd_cs46xx_capture_indirect_ops;
+	}
+
+	return 0;
+}
+
+static int snd_cs46xx_capture_hw_free(snd_pcm_substream_t * substream)
+{
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+
+	if (runtime->dma_area != chip->capt.hw_buf.area)
+		snd_pcm_lib_free_pages(substream);
+	runtime->dma_area = NULL;
+	runtime->dma_addr = 0;
+	runtime->dma_bytes = 0;
+
+	return 0;
+}
+
+static int snd_cs46xx_capture_prepare(snd_pcm_substream_t * substream)
+{
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+
+	snd_cs46xx_poke(chip, BA1_CBA, chip->capt.hw_buf.addr);
+	chip->capt.shift = 2;
+	memset(&chip->capt.pcm_rec, 0, sizeof(chip->capt.pcm_rec));
+	chip->capt.pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
+	chip->capt.pcm_rec.hw_buffer_size = runtime->period_size * CS46XX_FRAGS << 2;
+	snd_cs46xx_set_capture_sample_rate(chip, runtime->rate);
+
+	return 0;
+}
+
+static irqreturn_t snd_cs46xx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	cs46xx_t *chip = dev_id;
+	u32 status1;
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
+	u32 status2;
+	int i;
+	cs46xx_pcm_t *cpcm = NULL;
+#endif
+
+	/*
+	 *  Read the Interrupt Status Register to clear the interrupt
+	 */
+	status1 = snd_cs46xx_peekBA0(chip, BA0_HISR);
+	if ((status1 & 0x7fffffff) == 0) {
+		snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
+		return IRQ_NONE;
+	}
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	status2 = snd_cs46xx_peekBA0(chip, BA0_HSR0);
+
+	for (i = 0; i < DSP_MAX_PCM_CHANNELS; ++i) {
+		if (i <= 15) {
+			if ( status1 & (1 << i) ) {
+				if (i == CS46XX_DSP_CAPTURE_CHANNEL) {
+					if (chip->capt.substream)
+						snd_pcm_period_elapsed(chip->capt.substream);
+				} else {
+					if (ins->pcm_channels[i].active &&
+					    ins->pcm_channels[i].private_data &&
+					    !ins->pcm_channels[i].unlinked) {
+						cpcm = ins->pcm_channels[i].private_data;
+						snd_pcm_period_elapsed(cpcm->substream);
+					}
+				}
+			}
+		} else {
+			if ( status2 & (1 << (i - 16))) {
+				if (ins->pcm_channels[i].active && 
+				    ins->pcm_channels[i].private_data &&
+				    !ins->pcm_channels[i].unlinked) {
+					cpcm = ins->pcm_channels[i].private_data;
+					snd_pcm_period_elapsed(cpcm->substream);
+				}
+			}
+		}
+	}
+
+#else
+	/* old dsp */
+	if ((status1 & HISR_VC0) && chip->playback_pcm) {
+		if (chip->playback_pcm->substream)
+			snd_pcm_period_elapsed(chip->playback_pcm->substream);
+	}
+	if ((status1 & HISR_VC1) && chip->pcm) {
+		if (chip->capt.substream)
+			snd_pcm_period_elapsed(chip->capt.substream);
+	}
+#endif
+
+	if ((status1 & HISR_MIDI) && chip->rmidi) {
+		unsigned char c;
+		
+		spin_lock(&chip->reg_lock);
+		while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_RBE) == 0) {
+			c = snd_cs46xx_peekBA0(chip, BA0_MIDRP);
+			if ((chip->midcr & MIDCR_RIE) == 0)
+				continue;
+			snd_rawmidi_receive(chip->midi_input, &c, 1);
+		}
+		while ((snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
+			if ((chip->midcr & MIDCR_TIE) == 0)
+				break;
+			if (snd_rawmidi_transmit(chip->midi_output, &c, 1) != 1) {
+				chip->midcr &= ~MIDCR_TIE;
+				snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
+				break;
+			}
+			snd_cs46xx_pokeBA0(chip, BA0_MIDWP, c);
+		}
+		spin_unlock(&chip->reg_lock);
+	}
+	/*
+	 *  EOI to the PCI part....reenables interrupts
+	 */
+	snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_CHGM | HICR_IEV);
+
+	return IRQ_HANDLED;
+}
+
+static snd_pcm_hardware_t snd_cs46xx_playback =
+{
+	.info =			(SNDRV_PCM_INFO_MMAP |
+				 SNDRV_PCM_INFO_INTERLEAVED | 
+				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
+				 SNDRV_PCM_INFO_RESUME),
+	.formats =		(SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
+				 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
+				 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE),
+	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
+	.rate_min =		5500,
+	.rate_max =		48000,
+	.channels_min =		1,
+	.channels_max =		2,
+	.buffer_bytes_max =	(256 * 1024),
+	.period_bytes_min =	CS46XX_MIN_PERIOD_SIZE,
+	.period_bytes_max =	CS46XX_MAX_PERIOD_SIZE,
+	.periods_min =		CS46XX_FRAGS,
+	.periods_max =		1024,
+	.fifo_size =		0,
+};
+
+static snd_pcm_hardware_t snd_cs46xx_capture =
+{
+	.info =			(SNDRV_PCM_INFO_MMAP |
+				 SNDRV_PCM_INFO_INTERLEAVED |
+				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
+				 SNDRV_PCM_INFO_RESUME),
+	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
+	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
+	.rate_min =		5500,
+	.rate_max =		48000,
+	.channels_min =		2,
+	.channels_max =		2,
+	.buffer_bytes_max =	(256 * 1024),
+	.period_bytes_min =	CS46XX_MIN_PERIOD_SIZE,
+	.period_bytes_max =	CS46XX_MAX_PERIOD_SIZE,
+	.periods_min =		CS46XX_FRAGS,
+	.periods_max =		1024,
+	.fifo_size =		0,
+};
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+
+static unsigned int period_sizes[] = { 32, 64, 128, 256, 512, 1024, 2048 };
+
+static snd_pcm_hw_constraint_list_t hw_constraints_period_sizes = {
+	.count = ARRAY_SIZE(period_sizes),
+	.list = period_sizes,
+	.mask = 0
+};
+
+#endif
+
+static void snd_cs46xx_pcm_free_substream(snd_pcm_runtime_t *runtime)
+{
+	cs46xx_pcm_t * cpcm = runtime->private_data;
+	kfree(cpcm);
+}
+
+static int _cs46xx_playback_open_channel (snd_pcm_substream_t * substream,int pcm_channel_id)
+{
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+	cs46xx_pcm_t * cpcm;
+	snd_pcm_runtime_t *runtime = substream->runtime;
+
+	cpcm = kcalloc(1, sizeof(*cpcm), GFP_KERNEL);
+	if (cpcm == NULL)
+		return -ENOMEM;
+	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
+				PAGE_SIZE, &cpcm->hw_buf) < 0) {
+		kfree(cpcm);
+		return -ENOMEM;
+	}
+
+	runtime->hw = snd_cs46xx_playback;
+	runtime->private_data = cpcm;
+	runtime->private_free = snd_cs46xx_pcm_free_substream;
+
+	cpcm->substream = substream;
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	down (&chip->spos_mutex);
+	cpcm->pcm_channel = NULL; 
+	cpcm->pcm_channel_id = pcm_channel_id;
+
+
+	snd_pcm_hw_constraint_list(runtime, 0,
+				   SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 
+				   &hw_constraints_period_sizes);
+
+	up (&chip->spos_mutex);
+#else
+	chip->playback_pcm = cpcm; /* HACK */
+#endif
+
+	if (chip->accept_valid)
+		substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
+	chip->active_ctrl(chip, 1);
+
+	return 0;
+}
+
+static int snd_cs46xx_playback_open(snd_pcm_substream_t * substream)
+{
+	snd_printdd("open front channel\n");
+	return _cs46xx_playback_open_channel(substream,DSP_PCM_MAIN_CHANNEL);
+}
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+static int snd_cs46xx_playback_open_rear(snd_pcm_substream_t * substream)
+{
+	snd_printdd("open rear channel\n");
+
+	return _cs46xx_playback_open_channel(substream,DSP_PCM_REAR_CHANNEL);
+}
+
+static int snd_cs46xx_playback_open_clfe(snd_pcm_substream_t * substream)
+{
+	snd_printdd("open center - LFE channel\n");
+
+	return _cs46xx_playback_open_channel(substream,DSP_PCM_CENTER_LFE_CHANNEL);
+}
+
+static int snd_cs46xx_playback_open_iec958(snd_pcm_substream_t * substream)
+{
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+
+	snd_printdd("open raw iec958 channel\n");
+
+	down (&chip->spos_mutex);
+	cs46xx_iec958_pre_open (chip);
+	up (&chip->spos_mutex);
+
+	return _cs46xx_playback_open_channel(substream,DSP_IEC958_CHANNEL);
+}
+
+static int snd_cs46xx_playback_close(snd_pcm_substream_t * substream);
+
+static int snd_cs46xx_playback_close_iec958(snd_pcm_substream_t * substream)
+{
+	int err;
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+  
+	snd_printdd("close raw iec958 channel\n");
+
+	err = snd_cs46xx_playback_close(substream);
+
+	down (&chip->spos_mutex);
+	cs46xx_iec958_post_close (chip);
+	up (&chip->spos_mutex);
+
+	return err;
+}
+#endif
+
+static int snd_cs46xx_capture_open(snd_pcm_substream_t * substream)
+{
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+
+	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
+				PAGE_SIZE, &chip->capt.hw_buf) < 0)
+		return -ENOMEM;
+	chip->capt.substream = substream;
+	substream->runtime->hw = snd_cs46xx_capture;
+
+	if (chip->accept_valid)
+		substream->runtime->hw.info |= SNDRV_PCM_INFO_MMAP_VALID;
+
+	chip->active_ctrl(chip, 1);
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	snd_pcm_hw_constraint_list(substream->runtime, 0,
+				   SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 
+				   &hw_constraints_period_sizes);
+#endif
+	return 0;
+}
+
+static int snd_cs46xx_playback_close(snd_pcm_substream_t * substream)
+{
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	cs46xx_pcm_t * cpcm;
+
+	cpcm = runtime->private_data;
+
+	/* when playback_open fails, then cpcm can be NULL */
+	if (!cpcm) return -ENXIO;
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	down (&chip->spos_mutex);
+	if (cpcm->pcm_channel) {
+		cs46xx_dsp_destroy_pcm_channel(chip,cpcm->pcm_channel);
+		cpcm->pcm_channel = NULL;
+	}
+	up (&chip->spos_mutex);
+#else
+	chip->playback_pcm = NULL;
+#endif
+
+	cpcm->substream = NULL;
+	snd_dma_free_pages(&cpcm->hw_buf);
+	chip->active_ctrl(chip, -1);
+
+	return 0;
+}
+
+static int snd_cs46xx_capture_close(snd_pcm_substream_t * substream)
+{
+	cs46xx_t *chip = snd_pcm_substream_chip(substream);
+
+	chip->capt.substream = NULL;
+	snd_dma_free_pages(&chip->capt.hw_buf);
+	chip->active_ctrl(chip, -1);
+
+	return 0;
+}
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+static snd_pcm_ops_t snd_cs46xx_playback_rear_ops = {
+	.open =			snd_cs46xx_playback_open_rear,
+	.close =		snd_cs46xx_playback_close,
+	.ioctl =		snd_pcm_lib_ioctl,
+	.hw_params =		snd_cs46xx_playback_hw_params,
+	.hw_free =		snd_cs46xx_playback_hw_free,
+	.prepare =		snd_cs46xx_playback_prepare,
+	.trigger =		snd_cs46xx_playback_trigger,
+	.pointer =		snd_cs46xx_playback_direct_pointer,
+};
+
+static snd_pcm_ops_t snd_cs46xx_playback_indirect_rear_ops = {
+	.open =			snd_cs46xx_playback_open_rear,
+	.close =		snd_cs46xx_playback_close,
+	.ioctl =		snd_pcm_lib_ioctl,
+	.hw_params =		snd_cs46xx_playback_hw_params,
+	.hw_free =		snd_cs46xx_playback_hw_free,
+	.prepare =		snd_cs46xx_playback_prepare,
+	.trigger =		snd_cs46xx_playback_trigger,
+	.pointer =		snd_cs46xx_playback_indirect_pointer,
+	.ack =			snd_cs46xx_playback_transfer,
+};
+
+static snd_pcm_ops_t snd_cs46xx_playback_clfe_ops = {
+	.open =			snd_cs46xx_playback_open_clfe,
+	.close =		snd_cs46xx_playback_close,
+	.ioctl =		snd_pcm_lib_ioctl,
+	.hw_params =		snd_cs46xx_playback_hw_params,
+	.hw_free =		snd_cs46xx_playback_hw_free,
+	.prepare =		snd_cs46xx_playback_prepare,
+	.trigger =		snd_cs46xx_playback_trigger,
+	.pointer =		snd_cs46xx_playback_direct_pointer,
+};
+
+static snd_pcm_ops_t snd_cs46xx_playback_indirect_clfe_ops = {
+	.open =			snd_cs46xx_playback_open_clfe,
+	.close =		snd_cs46xx_playback_close,
+	.ioctl =		snd_pcm_lib_ioctl,
+	.hw_params =		snd_cs46xx_playback_hw_params,
+	.hw_free =		snd_cs46xx_playback_hw_free,
+	.prepare =		snd_cs46xx_playback_prepare,
+	.trigger =		snd_cs46xx_playback_trigger,
+	.pointer =		snd_cs46xx_playback_indirect_pointer,
+	.ack =			snd_cs46xx_playback_transfer,
+};
+
+static snd_pcm_ops_t snd_cs46xx_playback_iec958_ops = {
+	.open =			snd_cs46xx_playback_open_iec958,
+	.close =		snd_cs46xx_playback_close_iec958,
+	.ioctl =		snd_pcm_lib_ioctl,
+	.hw_params =		snd_cs46xx_playback_hw_params,
+	.hw_free =		snd_cs46xx_playback_hw_free,
+	.prepare =		snd_cs46xx_playback_prepare,
+	.trigger =		snd_cs46xx_playback_trigger,
+	.pointer =		snd_cs46xx_playback_direct_pointer,
+};
+
+static snd_pcm_ops_t snd_cs46xx_playback_indirect_iec958_ops = {
+	.open =			snd_cs46xx_playback_open_iec958,
+	.close =		snd_cs46xx_playback_close_iec958,
+	.ioctl =		snd_pcm_lib_ioctl,
+	.hw_params =		snd_cs46xx_playback_hw_params,
+	.hw_free =		snd_cs46xx_playback_hw_free,
+	.prepare =		snd_cs46xx_playback_prepare,
+	.trigger =		snd_cs46xx_playback_trigger,
+	.pointer =		snd_cs46xx_playback_indirect_pointer,
+	.ack =			snd_cs46xx_playback_transfer,
+};
+
+#endif
+
+static snd_pcm_ops_t snd_cs46xx_playback_ops = {
+	.open =			snd_cs46xx_playback_open,
+	.close =		snd_cs46xx_playback_close,
+	.ioctl =		snd_pcm_lib_ioctl,
+	.hw_params =		snd_cs46xx_playback_hw_params,
+	.hw_free =		snd_cs46xx_playback_hw_free,
+	.prepare =		snd_cs46xx_playback_prepare,
+	.trigger =		snd_cs46xx_playback_trigger,
+	.pointer =		snd_cs46xx_playback_direct_pointer,
+};
+
+static snd_pcm_ops_t snd_cs46xx_playback_indirect_ops = {
+	.open =			snd_cs46xx_playback_open,
+	.close =		snd_cs46xx_playback_close,
+	.ioctl =		snd_pcm_lib_ioctl,
+	.hw_params =		snd_cs46xx_playback_hw_params,
+	.hw_free =		snd_cs46xx_playback_hw_free,
+	.prepare =		snd_cs46xx_playback_prepare,
+	.trigger =		snd_cs46xx_playback_trigger,
+	.pointer =		snd_cs46xx_playback_indirect_pointer,
+	.ack =			snd_cs46xx_playback_transfer,
+};
+
+static snd_pcm_ops_t snd_cs46xx_capture_ops = {
+	.open =			snd_cs46xx_capture_open,
+	.close =		snd_cs46xx_capture_close,
+	.ioctl =		snd_pcm_lib_ioctl,
+	.hw_params =		snd_cs46xx_capture_hw_params,
+	.hw_free =		snd_cs46xx_capture_hw_free,
+	.prepare =		snd_cs46xx_capture_prepare,
+	.trigger =		snd_cs46xx_capture_trigger,
+	.pointer =		snd_cs46xx_capture_direct_pointer,
+};
+
+static snd_pcm_ops_t snd_cs46xx_capture_indirect_ops = {
+	.open =			snd_cs46xx_capture_open,
+	.close =		snd_cs46xx_capture_close,
+	.ioctl =		snd_pcm_lib_ioctl,
+	.hw_params =		snd_cs46xx_capture_hw_params,
+	.hw_free =		snd_cs46xx_capture_hw_free,
+	.prepare =		snd_cs46xx_capture_prepare,
+	.trigger =		snd_cs46xx_capture_trigger,
+	.pointer =		snd_cs46xx_capture_indirect_pointer,
+	.ack =			snd_cs46xx_capture_transfer,
+};
+
+static void snd_cs46xx_pcm_free(snd_pcm_t *pcm)
+{
+	cs46xx_t *chip = pcm->private_data;
+	chip->pcm = NULL;
+	snd_pcm_lib_preallocate_free_for_all(pcm);
+}
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+static void snd_cs46xx_pcm_rear_free(snd_pcm_t *pcm)
+{
+	cs46xx_t *chip = pcm->private_data;
+	chip->pcm_rear = NULL;
+	snd_pcm_lib_preallocate_free_for_all(pcm);
+}
+
+static void snd_cs46xx_pcm_center_lfe_free(snd_pcm_t *pcm)
+{
+	cs46xx_t *chip = pcm->private_data;
+	chip->pcm_center_lfe = NULL;
+	snd_pcm_lib_preallocate_free_for_all(pcm);
+}
+
+static void snd_cs46xx_pcm_iec958_free(snd_pcm_t *pcm)
+{
+	cs46xx_t *chip = pcm->private_data;
+	chip->pcm_iec958 = NULL;
+	snd_pcm_lib_preallocate_free_for_all(pcm);
+}
+
+#define MAX_PLAYBACK_CHANNELS	(DSP_MAX_PCM_CHANNELS - 1)
+#else
+#define MAX_PLAYBACK_CHANNELS	1
+#endif
+
+int __devinit snd_cs46xx_pcm(cs46xx_t *chip, int device, snd_pcm_t ** rpcm)
+{
+	snd_pcm_t *pcm;
+	int err;
+
+	if (rpcm)
+		*rpcm = NULL;
+	if ((err = snd_pcm_new(chip->card, "CS46xx", device, MAX_PLAYBACK_CHANNELS, 1, &pcm)) < 0)
+		return err;
+
+	pcm->private_data = chip;
+	pcm->private_free = snd_cs46xx_pcm_free;
+
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_ops);
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs46xx_capture_ops);
+
+	/* global setup */
+	pcm->info_flags = 0;
+	strcpy(pcm->name, "CS46xx");
+	chip->pcm = pcm;
+
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
+
+	if (rpcm)
+		*rpcm = pcm;
+
+	return 0;
+}
+
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+int __devinit snd_cs46xx_pcm_rear(cs46xx_t *chip, int device, snd_pcm_t ** rpcm)
+{
+	snd_pcm_t *pcm;
+	int err;
+
+	if (rpcm)
+		*rpcm = NULL;
+
+	if ((err = snd_pcm_new(chip->card, "CS46xx - Rear", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
+		return err;
+
+	pcm->private_data = chip;
+	pcm->private_free = snd_cs46xx_pcm_rear_free;
+
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_rear_ops);
+
+	/* global setup */
+	pcm->info_flags = 0;
+	strcpy(pcm->name, "CS46xx - Rear");
+	chip->pcm_rear = pcm;
+
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
+
+	if (rpcm)
+		*rpcm = pcm;
+
+	return 0;
+}
+
+int __devinit snd_cs46xx_pcm_center_lfe(cs46xx_t *chip, int device, snd_pcm_t ** rpcm)
+{
+	snd_pcm_t *pcm;
+	int err;
+
+	if (rpcm)
+		*rpcm = NULL;
+
+	if ((err = snd_pcm_new(chip->card, "CS46xx - Center LFE", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
+		return err;
+
+	pcm->private_data = chip;
+	pcm->private_free = snd_cs46xx_pcm_center_lfe_free;
+
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_clfe_ops);
+
+	/* global setup */
+	pcm->info_flags = 0;
+	strcpy(pcm->name, "CS46xx - Center LFE");
+	chip->pcm_center_lfe = pcm;
+
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
+
+	if (rpcm)
+		*rpcm = pcm;
+
+	return 0;
+}
+
+int __devinit snd_cs46xx_pcm_iec958(cs46xx_t *chip, int device, snd_pcm_t ** rpcm)
+{
+	snd_pcm_t *pcm;
+	int err;
+
+	if (rpcm)
+		*rpcm = NULL;
+
+	if ((err = snd_pcm_new(chip->card, "CS46xx - IEC958", device, 1, 0, &pcm)) < 0)
+		return err;
+
+	pcm->private_data = chip;
+	pcm->private_free = snd_cs46xx_pcm_iec958_free;
+
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs46xx_playback_iec958_ops);
+
+	/* global setup */
+	pcm->info_flags = 0;
+	strcpy(pcm->name, "CS46xx - IEC958");
+	chip->pcm_rear = pcm;
+
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+					      snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
+
+	if (rpcm)
+		*rpcm = pcm;
+
+	return 0;
+}
+#endif
+
+/*
+ *  Mixer routines
+ */
+static void snd_cs46xx_mixer_free_ac97_bus(ac97_bus_t *bus)
+{
+	cs46xx_t *chip = bus->private_data;
+
+	chip->ac97_bus = NULL;
+}
+
+static void snd_cs46xx_mixer_free_ac97(ac97_t *ac97)
+{
+	cs46xx_t *chip = ac97->private_data;
+
+	snd_assert ((ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) ||
+		    (ac97 == chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]),
+		    return);
+
+	if (ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) {
+		chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] = NULL;
+		chip->eapd_switch = NULL;
+	}
+	else
+		chip->ac97[CS46XX_SECONDARY_CODEC_INDEX] = NULL;
+}
+
+static int snd_cs46xx_vol_info(snd_kcontrol_t *kcontrol, 
+			       snd_ctl_elem_info_t *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 0x7fff;
+	return 0;
+}
+
+static int snd_cs46xx_vol_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	int reg = kcontrol->private_value;
+	unsigned int val = snd_cs46xx_peek(chip, reg);
+	ucontrol->value.integer.value[0] = 0xffff - (val >> 16);
+	ucontrol->value.integer.value[1] = 0xffff - (val & 0xffff);
+	return 0;
+}
+
+static int snd_cs46xx_vol_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	int reg = kcontrol->private_value;
+	unsigned int val = ((0xffff - ucontrol->value.integer.value[0]) << 16 | 
+			    (0xffff - ucontrol->value.integer.value[1]));
+	unsigned int old = snd_cs46xx_peek(chip, reg);
+	int change = (old != val);
+
+	if (change) {
+		snd_cs46xx_poke(chip, reg, val);
+	}
+
+	return change;
+}
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+
+static int snd_cs46xx_vol_dac_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+
+	ucontrol->value.integer.value[0] = chip->dsp_spos_instance->dac_volume_left;
+	ucontrol->value.integer.value[1] = chip->dsp_spos_instance->dac_volume_right;
+
+	return 0;
+}
+
+static int snd_cs46xx_vol_dac_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	int change = 0;
+
+	if (chip->dsp_spos_instance->dac_volume_right != ucontrol->value.integer.value[0] ||
+	    chip->dsp_spos_instance->dac_volume_left != ucontrol->value.integer.value[1]) {
+		cs46xx_dsp_set_dac_volume(chip,
+					  ucontrol->value.integer.value[0],
+					  ucontrol->value.integer.value[1]);
+		change = 1;
+	}
+
+	return change;
+}
+
+#if 0
+static int snd_cs46xx_vol_iec958_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+
+	ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_input_volume_left;
+	ucontrol->value.integer.value[1] = chip->dsp_spos_instance->spdif_input_volume_right;
+	return 0;
+}
+
+static int snd_cs46xx_vol_iec958_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	int change = 0;
+
+	if (chip->dsp_spos_instance->spdif_input_volume_left  != ucontrol->value.integer.value[0] ||
+	    chip->dsp_spos_instance->spdif_input_volume_right!= ucontrol->value.integer.value[1]) {
+		cs46xx_dsp_set_iec958_volume (chip,
+					      ucontrol->value.integer.value[0],
+					      ucontrol->value.integer.value[1]);
+		change = 1;
+	}
+
+	return change;
+}
+#endif
+
+static int snd_mixer_boolean_info(snd_kcontrol_t *kcontrol, 
+				  snd_ctl_elem_info_t *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	return 0;
+}
+
+static int snd_cs46xx_iec958_get(snd_kcontrol_t *kcontrol, 
+                                 snd_ctl_elem_value_t *ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	int reg = kcontrol->private_value;
+
+	if (reg == CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT)
+		ucontrol->value.integer.value[0] = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
+	else
+		ucontrol->value.integer.value[0] = chip->dsp_spos_instance->spdif_status_in;
+
+	return 0;
+}
+
+static int snd_cs46xx_iec958_put(snd_kcontrol_t *kcontrol, 
+                                  snd_ctl_elem_value_t *ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	int change, res;
+
+	switch (kcontrol->private_value) {
+	case CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT:
+		down (&chip->spos_mutex);
+		change = (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED);
+		if (ucontrol->value.integer.value[0] && !change) 
+			cs46xx_dsp_enable_spdif_out(chip);
+		else if (change && !ucontrol->value.integer.value[0])
+			cs46xx_dsp_disable_spdif_out(chip);
+
+		res = (change != (chip->dsp_spos_instance->spdif_status_out & DSP_SPDIF_STATUS_OUTPUT_ENABLED));
+		up (&chip->spos_mutex);
+		break;
+	case CS46XX_MIXER_SPDIF_INPUT_ELEMENT:
+		change = chip->dsp_spos_instance->spdif_status_in;
+		if (ucontrol->value.integer.value[0] && !change) {
+			cs46xx_dsp_enable_spdif_in(chip);
+			/* restore volume */
+		}
+		else if (change && !ucontrol->value.integer.value[0])
+			cs46xx_dsp_disable_spdif_in(chip);
+		
+		res = (change != chip->dsp_spos_instance->spdif_status_in);
+		break;
+	default:
+		res = -EINVAL;
+		snd_assert(0, (void)0);
+	}
+
+	return res;
+}
+
+static int snd_cs46xx_adc_capture_get(snd_kcontrol_t *kcontrol, 
+                                      snd_ctl_elem_value_t *ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
+
+	if (ins->adc_input != NULL) 
+		ucontrol->value.integer.value[0] = 1;
+	else 
+		ucontrol->value.integer.value[0] = 0;
+	
+	return 0;
+}
+
+static int snd_cs46xx_adc_capture_put(snd_kcontrol_t *kcontrol, 
+                                      snd_ctl_elem_value_t *ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
+	int change = 0;
+
+	if (ucontrol->value.integer.value[0] && !ins->adc_input) {
+		cs46xx_dsp_enable_adc_capture(chip);
+		change = 1;
+	} else  if (!ucontrol->value.integer.value[0] && ins->adc_input) {
+		cs46xx_dsp_disable_adc_capture(chip);
+		change = 1;
+	}
+	return change;
+}
+
+static int snd_cs46xx_pcm_capture_get(snd_kcontrol_t *kcontrol, 
+                                      snd_ctl_elem_value_t *ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
+
+	if (ins->pcm_input != NULL) 
+		ucontrol->value.integer.value[0] = 1;
+	else 
+		ucontrol->value.integer.value[0] = 0;
+
+	return 0;
+}
+
+
+static int snd_cs46xx_pcm_capture_put(snd_kcontrol_t *kcontrol, 
+                                      snd_ctl_elem_value_t *ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
+	int change = 0;
+
+	if (ucontrol->value.integer.value[0] && !ins->pcm_input) {
+		cs46xx_dsp_enable_pcm_capture(chip);
+		change = 1;
+	} else  if (!ucontrol->value.integer.value[0] && ins->pcm_input) {
+		cs46xx_dsp_disable_pcm_capture(chip);
+		change = 1;
+	}
+
+	return change;
+}
+
+static int snd_herc_spdif_select_get(snd_kcontrol_t *kcontrol, 
+                                     snd_ctl_elem_value_t *ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+
+	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
+
+	if (val1 & EGPIODR_GPOE0)
+		ucontrol->value.integer.value[0] = 1;
+	else
+		ucontrol->value.integer.value[0] = 0;
+
+	return 0;
+}
+
+/*
+ *	Game Theatre XP card - EGPIO[0] is used to select SPDIF input optical or coaxial.
+ */ 
+static int snd_herc_spdif_select_put(snd_kcontrol_t *kcontrol, 
+                                       snd_ctl_elem_value_t *ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
+	int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
+
+	if (ucontrol->value.integer.value[0]) {
+		/* optical is default */
+		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, 
+				   EGPIODR_GPOE0 | val1);  /* enable EGPIO0 output */
+		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, 
+				   EGPIOPTR_GPPT0 | val2); /* open-drain on output */
+	} else {
+		/* coaxial */
+		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE0); /* disable */
+		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT0); /* disable */
+	}
+
+	/* checking diff from the EGPIO direction register 
+	   should be enough */
+	return (val1 != (int)snd_cs46xx_peekBA0(chip, BA0_EGPIODR));
+}
+
+
+static int snd_cs46xx_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+	return 0;
+}
+
+static int snd_cs46xx_spdif_default_get(snd_kcontrol_t * kcontrol,
+					snd_ctl_elem_value_t * ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
+
+	down (&chip->spos_mutex);
+	ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_default >> 24) & 0xff);
+	ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_default >> 16) & 0xff);
+	ucontrol->value.iec958.status[2] = 0;
+	ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_default) & 0xff);
+	up (&chip->spos_mutex);
+
+	return 0;
+}
+
+static int snd_cs46xx_spdif_default_put(snd_kcontrol_t * kcontrol,
+					snd_ctl_elem_value_t * ucontrol)
+{
+	cs46xx_t * chip = snd_kcontrol_chip(kcontrol);
+	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
+	unsigned int val;
+	int change;
+
+	down (&chip->spos_mutex);
+	val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
+		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[2]) << 16) |
+		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3]))  |
+		/* left and right validity bit */
+		(1 << 13) | (1 << 12);
+
+
+	change = (unsigned int)ins->spdif_csuv_default != val;
+	ins->spdif_csuv_default = val;
+
+	if ( !(ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN) )
+		cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
+
+	up (&chip->spos_mutex);
+
+	return change;
+}
+
+static int snd_cs46xx_spdif_mask_get(snd_kcontrol_t * kcontrol,
+				     snd_ctl_elem_value_t * ucontrol)
+{
+	ucontrol->value.iec958.status[0] = 0xff;
+	ucontrol->value.iec958.status[1] = 0xff;
+	ucontrol->value.iec958.status[2] = 0x00;
+	ucontrol->value.iec958.status[3] = 0xff;
+	return 0;
+}
+
+static int snd_cs46xx_spdif_stream_get(snd_kcontrol_t * kcontrol,
+                                         snd_ctl_elem_value_t * ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
+
+	down (&chip->spos_mutex);
+	ucontrol->value.iec958.status[0] = _wrap_all_bits((ins->spdif_csuv_stream >> 24) & 0xff);
+	ucontrol->value.iec958.status[1] = _wrap_all_bits((ins->spdif_csuv_stream >> 16) & 0xff);
+	ucontrol->value.iec958.status[2] = 0;
+	ucontrol->value.iec958.status[3] = _wrap_all_bits((ins->spdif_csuv_stream) & 0xff);
+	up (&chip->spos_mutex);
+
+	return 0;
+}
+
+static int snd_cs46xx_spdif_stream_put(snd_kcontrol_t * kcontrol,
+                                        snd_ctl_elem_value_t * ucontrol)
+{
+	cs46xx_t * chip = snd_kcontrol_chip(kcontrol);
+	dsp_spos_instance_t * ins = chip->dsp_spos_instance;
+	unsigned int val;
+	int change;
+
+	down (&chip->spos_mutex);
+	val = ((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[0]) << 24) |
+		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[1]) << 16) |
+		((unsigned int)_wrap_all_bits(ucontrol->value.iec958.status[3])) |
+		/* left and right validity bit */
+		(1 << 13) | (1 << 12);
+
+
+	change = ins->spdif_csuv_stream != val;
+	ins->spdif_csuv_stream = val;
+
+	if ( ins->spdif_status_out & DSP_SPDIF_STATUS_PLAYBACK_OPEN )
+		cs46xx_poke_via_dsp (chip,SP_SPDOUT_CSUV,val);
+
+	up (&chip->spos_mutex);
+
+	return change;
+}
+
+#endif /* CONFIG_SND_CS46XX_NEW_DSP */
+
+
+#ifdef CONFIG_SND_CS46XX_DEBUG_GPIO
+static int snd_cs46xx_egpio_select_info(snd_kcontrol_t *kcontrol, 
+                                        snd_ctl_elem_info_t *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 8;
+	return 0;
+}
+
+static int snd_cs46xx_egpio_select_get(snd_kcontrol_t *kcontrol, 
+                                       snd_ctl_elem_value_t *ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	ucontrol->value.integer.value[0] = chip->current_gpio;
+
+	return 0;
+}
+
+static int snd_cs46xx_egpio_select_put(snd_kcontrol_t *kcontrol, 
+                                       snd_ctl_elem_value_t *ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	int change = (chip->current_gpio != ucontrol->value.integer.value[0]);
+	chip->current_gpio = ucontrol->value.integer.value[0];
+
+	return change;
+}
+
+
+static int snd_cs46xx_egpio_get(snd_kcontrol_t *kcontrol, 
+                                       snd_ctl_elem_value_t *ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	int reg = kcontrol->private_value;
+
+	snd_printdd ("put: reg = %04x, gpio %02x\n",reg,chip->current_gpio);
+	ucontrol->value.integer.value[0] = 
+		(snd_cs46xx_peekBA0(chip, reg) & (1 << chip->current_gpio)) ? 1 : 0;
+  
+	return 0;
+}
+
+static int snd_cs46xx_egpio_put(snd_kcontrol_t *kcontrol, 
+                                       snd_ctl_elem_value_t *ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	int reg = kcontrol->private_value;
+	int val = snd_cs46xx_peekBA0(chip, reg);
+	int oldval = val;
+	snd_printdd ("put: reg = %04x, gpio %02x\n",reg,chip->current_gpio);
+
+	if (ucontrol->value.integer.value[0])
+		val |= (1 << chip->current_gpio);
+	else
+		val &= ~(1 << chip->current_gpio);
+
+	snd_cs46xx_pokeBA0(chip, reg,val);
+	snd_printdd ("put: val %08x oldval %08x\n",val,oldval);
+
+	return (oldval != val);
+}
+#endif /* CONFIG_SND_CS46XX_DEBUG_GPIO */
+
+static snd_kcontrol_new_t snd_cs46xx_controls[] __devinitdata = {
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "DAC Volume",
+	.info = snd_cs46xx_vol_info,
+#ifndef CONFIG_SND_CS46XX_NEW_DSP
+	.get = snd_cs46xx_vol_get,
+	.put = snd_cs46xx_vol_put,
+	.private_value = BA1_PVOL,
+#else
+	.get = snd_cs46xx_vol_dac_get,
+	.put = snd_cs46xx_vol_dac_put,
+#endif
+},
+
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "ADC Volume",
+	.info = snd_cs46xx_vol_info,
+	.get = snd_cs46xx_vol_get,
+	.put = snd_cs46xx_vol_put,
+#ifndef CONFIG_SND_CS46XX_NEW_DSP
+	.private_value = BA1_CVOL,
+#else
+	.private_value = (VARIDECIMATE_SCB_ADDR + 0xE) << 2,
+#endif
+},
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "ADC Capture Switch",
+	.info = snd_mixer_boolean_info,
+	.get = snd_cs46xx_adc_capture_get,
+	.put = snd_cs46xx_adc_capture_put
+},
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "DAC Capture Switch",
+	.info = snd_mixer_boolean_info,
+	.get = snd_cs46xx_pcm_capture_get,
+	.put = snd_cs46xx_pcm_capture_put
+},
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "IEC958 Output Switch",
+	.info = snd_mixer_boolean_info,
+	.get = snd_cs46xx_iec958_get,
+	.put = snd_cs46xx_iec958_put,
+	.private_value = CS46XX_MIXER_SPDIF_OUTPUT_ELEMENT,
+},
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "IEC958 Input Switch",
+	.info = snd_mixer_boolean_info,
+	.get = snd_cs46xx_iec958_get,
+	.put = snd_cs46xx_iec958_put,
+	.private_value = CS46XX_MIXER_SPDIF_INPUT_ELEMENT,
+},
+#if 0
+/* Input IEC958 volume does not work for the moment. (Benny) */
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "IEC958 Input Volume",
+	.info = snd_cs46xx_vol_info,
+	.get = snd_cs46xx_vol_iec958_get,
+	.put = snd_cs46xx_vol_iec958_put,
+	.private_value = (ASYNCRX_SCB_ADDR + 0xE) << 2,
+},
+#endif
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =  SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
+	.info =	 snd_cs46xx_spdif_info,
+	.get =	 snd_cs46xx_spdif_default_get,
+	.put =   snd_cs46xx_spdif_default_put,
+},
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =	 SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
+	.info =	 snd_cs46xx_spdif_info,
+        .get =	 snd_cs46xx_spdif_mask_get,
+	.access = SNDRV_CTL_ELEM_ACCESS_READ
+},
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =	 SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
+	.info =	 snd_cs46xx_spdif_info,
+	.get =	 snd_cs46xx_spdif_stream_get,
+	.put =	 snd_cs46xx_spdif_stream_put
+},
+
+#endif
+#ifdef CONFIG_SND_CS46XX_DEBUG_GPIO
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "EGPIO select",
+	.info = snd_cs46xx_egpio_select_info,
+	.get = snd_cs46xx_egpio_select_get,
+	.put = snd_cs46xx_egpio_select_put,
+	.private_value = 0,
+},
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "EGPIO Input/Output",
+	.info = snd_mixer_boolean_info,
+	.get = snd_cs46xx_egpio_get,
+	.put = snd_cs46xx_egpio_put,
+	.private_value = BA0_EGPIODR,
+},
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "EGPIO CMOS/Open drain",
+	.info = snd_mixer_boolean_info,
+	.get = snd_cs46xx_egpio_get,
+	.put = snd_cs46xx_egpio_put,
+	.private_value = BA0_EGPIOPTR,
+},
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "EGPIO On/Off",
+	.info = snd_mixer_boolean_info,
+	.get = snd_cs46xx_egpio_get,
+	.put = snd_cs46xx_egpio_put,
+	.private_value = BA0_EGPIOSR,
+},
+#endif
+};
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+/* set primary cs4294 codec into Extended Audio Mode */
+static int snd_cs46xx_front_dup_get(snd_kcontrol_t *kcontrol, 
+				    snd_ctl_elem_value_t *ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned short val;
+	val = snd_ac97_read(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX], AC97_CSR_ACMODE);
+	ucontrol->value.integer.value[0] = (val & 0x200) ? 0 : 1;
+	return 0;
+}
+
+static int snd_cs46xx_front_dup_put(snd_kcontrol_t *kcontrol, 
+				    snd_ctl_elem_value_t *ucontrol)
+{
+	cs46xx_t *chip = snd_kcontrol_chip(kcontrol);
+	return snd_ac97_update_bits(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
+				    AC97_CSR_ACMODE, 0x200,
+				    ucontrol->value.integer.value[0] ? 0 : 0x200);
+}
+
+static snd_kcontrol_new_t snd_cs46xx_front_dup_ctl = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "Duplicate Front",
+	.info = snd_mixer_boolean_info,
+	.get = snd_cs46xx_front_dup_get,
+	.put = snd_cs46xx_front_dup_put,
+};
+#endif
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+/* Only available on the Hercules Game Theater XP soundcard */
+static snd_kcontrol_new_t snd_hercules_controls[] __devinitdata = {
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "Optical/Coaxial SPDIF Input Switch",
+	.info = snd_mixer_boolean_info,
+	.get = snd_herc_spdif_select_get,
+	.put = snd_herc_spdif_select_put,
+},
+};
+
+
+static void snd_cs46xx_codec_reset (ac97_t * ac97)
+{
+	unsigned long end_time;
+	int err;
+
+	/* reset to defaults */
+	snd_ac97_write(ac97, AC97_RESET, 0);	
+
+	/* set the desired CODEC mode */
+	if (ac97->num == CS46XX_PRIMARY_CODEC_INDEX) {
+		snd_printdd("cs46xx: CODOEC1 mode %04x\n",0x0);
+		snd_cs46xx_ac97_write(ac97,AC97_CSR_ACMODE,0x0);
+	} else if (ac97->num == CS46XX_SECONDARY_CODEC_INDEX) {
+		snd_printdd("cs46xx: CODOEC2 mode %04x\n",0x3);
+		snd_cs46xx_ac97_write(ac97,AC97_CSR_ACMODE,0x3);
+	} else {
+		snd_assert(0); /* should never happen ... */
+	}
+
+	udelay(50);
+
+	/* it's necessary to wait awhile until registers are accessible after RESET */
+	/* because the PCM or MASTER volume registers can be modified, */
+	/* the REC_GAIN register is used for tests */
+	end_time = jiffies + HZ;
+	do {
+		unsigned short ext_mid;
+    
+		/* use preliminary reads to settle the communication */
+		snd_ac97_read(ac97, AC97_RESET);
+		snd_ac97_read(ac97, AC97_VENDOR_ID1);
+		snd_ac97_read(ac97, AC97_VENDOR_ID2);
+		/* modem? */
+		ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
+		if (ext_mid != 0xffff && (ext_mid & 1) != 0)
+			return;
+
+		/* test if we can write to the record gain volume register */
+		snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05);
+		if ((err = snd_ac97_read(ac97, AC97_REC_GAIN)) == 0x8a05)
+			return;
+
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		schedule_timeout(HZ/100);
+	} while (time_after_eq(end_time, jiffies));
+
+	snd_printk("CS46xx secondary codec dont respond!\n");  
+}
+#endif
+
+static int __devinit cs46xx_detect_codec(cs46xx_t *chip, int codec)
+{
+	int idx, err;
+	ac97_template_t ac97;
+
+	memset(&ac97, 0, sizeof(ac97));
+	ac97.private_data = chip;
+	ac97.private_free = snd_cs46xx_mixer_free_ac97;
+	ac97.num = codec;
+	if (chip->amplifier_ctrl == amp_voyetra)
+		ac97.scaps = AC97_SCAP_INV_EAPD;
+
+	if (codec == CS46XX_SECONDARY_CODEC_INDEX) {
+		snd_cs46xx_codec_write(chip, AC97_RESET, 0, codec);
+		udelay(10);
+		if (snd_cs46xx_codec_read(chip, AC97_RESET, codec) & 0x8000) {
+			snd_printdd("snd_cs46xx: seconadry codec not present\n");
+			return -ENXIO;
+		}
+	}
+
+	snd_cs46xx_codec_write(chip, AC97_MASTER, 0x8000, codec);
+	for (idx = 0; idx < 100; ++idx) {
+		if (snd_cs46xx_codec_read(chip, AC97_MASTER, codec) == 0x8000) {
+			err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97[codec]);
+			return err;
+		}
+		set_current_state(TASK_INTERRUPTIBLE);
+		schedule_timeout(HZ/100);
+	}
+	snd_printdd("snd_cs46xx: codec %d detection timeout\n", codec);
+	return -ENXIO;
+}
+
+int __devinit snd_cs46xx_mixer(cs46xx_t *chip)
+{
+	snd_card_t *card = chip->card;
+	snd_ctl_elem_id_t id;
+	int err;
+	unsigned int idx;
+	static ac97_bus_ops_t ops = {
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+		.reset = snd_cs46xx_codec_reset,
+#endif
+		.write = snd_cs46xx_ac97_write,
+		.read = snd_cs46xx_ac97_read,
+	};
+
+	/* detect primary codec */
+	chip->nr_ac97_codecs = 0;
+	snd_printdd("snd_cs46xx: detecting primary codec\n");
+	if ((err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus)) < 0)
+		return err;
+	chip->ac97_bus->private_free = snd_cs46xx_mixer_free_ac97_bus;
+
+	if (cs46xx_detect_codec(chip, CS46XX_PRIMARY_CODEC_INDEX) < 0)
+		return -ENXIO;
+	chip->nr_ac97_codecs = 1;
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	snd_printdd("snd_cs46xx: detecting seconadry codec\n");
+	/* try detect a secondary codec */
+	if (! cs46xx_detect_codec(chip, CS46XX_SECONDARY_CODEC_INDEX))
+		chip->nr_ac97_codecs = 2;
+#endif /* CONFIG_SND_CS46XX_NEW_DSP */
+
+	/* add cs4630 mixer controls */
+	for (idx = 0; idx < ARRAY_SIZE(snd_cs46xx_controls); idx++) {
+		snd_kcontrol_t *kctl;
+		kctl = snd_ctl_new1(&snd_cs46xx_controls[idx], chip);
+		if ((err = snd_ctl_add(card, kctl)) < 0)
+			return err;
+	}
+
+	/* get EAPD mixer switch (for voyetra hack) */
+	memset(&id, 0, sizeof(id));
+	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+	strcpy(id.name, "External Amplifier");
+	chip->eapd_switch = snd_ctl_find_id(chip->card, &id);
+    
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	if (chip->nr_ac97_codecs == 1) {
+		unsigned int id2 = chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]->id & 0xffff;
+		if (id2 == 0x592b || id2 == 0x592d) {
+			err = snd_ctl_add(card, snd_ctl_new1(&snd_cs46xx_front_dup_ctl, chip));
+			if (err < 0)
+				return err;
+			snd_ac97_write_cache(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX],
+					     AC97_CSR_ACMODE, 0x200);
+		}
+	}
+	/* do soundcard specific mixer setup */
+	if (chip->mixer_init) {
+		snd_printdd ("calling chip->mixer_init(chip);\n");
+		chip->mixer_init(chip);
+	}
+#endif
+
+ 	/* turn on amplifier */
+	chip->amplifier_ctrl(chip, 1);
+    
+	return 0;
+}
+
+/*
+ *  RawMIDI interface
+ */
+
+static void snd_cs46xx_midi_reset(cs46xx_t *chip)
+{
+	snd_cs46xx_pokeBA0(chip, BA0_MIDCR, MIDCR_MRST);
+	udelay(100);
+	snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
+}
+
+static int snd_cs46xx_midi_input_open(snd_rawmidi_substream_t * substream)
+{
+	cs46xx_t *chip = substream->rmidi->private_data;
+
+	chip->active_ctrl(chip, 1);
+	spin_lock_irq(&chip->reg_lock);
+	chip->uartm |= CS46XX_MODE_INPUT;
+	chip->midcr |= MIDCR_RXE;
+	chip->midi_input = substream;
+	if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
+		snd_cs46xx_midi_reset(chip);
+	} else {
+		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
+	}
+	spin_unlock_irq(&chip->reg_lock);
+	return 0;
+}
+
+static int snd_cs46xx_midi_input_close(snd_rawmidi_substream_t * substream)
+{
+	cs46xx_t *chip = substream->rmidi->private_data;
+
+	spin_lock_irq(&chip->reg_lock);
+	chip->midcr &= ~(MIDCR_RXE | MIDCR_RIE);
+	chip->midi_input = NULL;
+	if (!(chip->uartm & CS46XX_MODE_OUTPUT)) {
+		snd_cs46xx_midi_reset(chip);
+	} else {
+		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
+	}
+	chip->uartm &= ~CS46XX_MODE_INPUT;
+	spin_unlock_irq(&chip->reg_lock);
+	chip->active_ctrl(chip, -1);
+	return 0;
+}
+
+static int snd_cs46xx_midi_output_open(snd_rawmidi_substream_t * substream)
+{
+	cs46xx_t *chip = substream->rmidi->private_data;
+
+	chip->active_ctrl(chip, 1);
+
+	spin_lock_irq(&chip->reg_lock);
+	chip->uartm |= CS46XX_MODE_OUTPUT;
+	chip->midcr |= MIDCR_TXE;
+	chip->midi_output = substream;
+	if (!(chip->uartm & CS46XX_MODE_INPUT)) {
+		snd_cs46xx_midi_reset(chip);
+	} else {
+		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
+	}
+	spin_unlock_irq(&chip->reg_lock);
+	return 0;
+}
+
+static int snd_cs46xx_midi_output_close(snd_rawmidi_substream_t * substream)
+{
+	cs46xx_t *chip = substream->rmidi->private_data;
+
+	spin_lock_irq(&chip->reg_lock);
+	chip->midcr &= ~(MIDCR_TXE | MIDCR_TIE);
+	chip->midi_output = NULL;
+	if (!(chip->uartm & CS46XX_MODE_INPUT)) {
+		snd_cs46xx_midi_reset(chip);
+	} else {
+		snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
+	}
+	chip->uartm &= ~CS46XX_MODE_OUTPUT;
+	spin_unlock_irq(&chip->reg_lock);
+	chip->active_ctrl(chip, -1);
+	return 0;
+}
+
+static void snd_cs46xx_midi_input_trigger(snd_rawmidi_substream_t * substream, int up)
+{
+	unsigned long flags;
+	cs46xx_t *chip = substream->rmidi->private_data;
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	if (up) {
+		if ((chip->midcr & MIDCR_RIE) == 0) {
+			chip->midcr |= MIDCR_RIE;
+			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
+		}
+	} else {
+		if (chip->midcr & MIDCR_RIE) {
+			chip->midcr &= ~MIDCR_RIE;
+			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
+		}
+	}
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+}
+
+static void snd_cs46xx_midi_output_trigger(snd_rawmidi_substream_t * substream, int up)
+{
+	unsigned long flags;
+	cs46xx_t *chip = substream->rmidi->private_data;
+	unsigned char byte;
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	if (up) {
+		if ((chip->midcr & MIDCR_TIE) == 0) {
+			chip->midcr |= MIDCR_TIE;
+			/* fill UART FIFO buffer at first, and turn Tx interrupts only if necessary */
+			while ((chip->midcr & MIDCR_TIE) &&
+			       (snd_cs46xx_peekBA0(chip, BA0_MIDSR) & MIDSR_TBF) == 0) {
+				if (snd_rawmidi_transmit(substream, &byte, 1) != 1) {
+					chip->midcr &= ~MIDCR_TIE;
+				} else {
+					snd_cs46xx_pokeBA0(chip, BA0_MIDWP, byte);
+				}
+			}
+			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
+		}
+	} else {
+		if (chip->midcr & MIDCR_TIE) {
+			chip->midcr &= ~MIDCR_TIE;
+			snd_cs46xx_pokeBA0(chip, BA0_MIDCR, chip->midcr);
+		}
+	}
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+}
+
+static snd_rawmidi_ops_t snd_cs46xx_midi_output =
+{
+	.open =		snd_cs46xx_midi_output_open,
+	.close =	snd_cs46xx_midi_output_close,
+	.trigger =	snd_cs46xx_midi_output_trigger,
+};
+
+static snd_rawmidi_ops_t snd_cs46xx_midi_input =
+{
+	.open =		snd_cs46xx_midi_input_open,
+	.close =	snd_cs46xx_midi_input_close,
+	.trigger =	snd_cs46xx_midi_input_trigger,
+};
+
+int __devinit snd_cs46xx_midi(cs46xx_t *chip, int device, snd_rawmidi_t **rrawmidi)
+{
+	snd_rawmidi_t *rmidi;
+	int err;
+
+	if (rrawmidi)
+		*rrawmidi = NULL;
+	if ((err = snd_rawmidi_new(chip->card, "CS46XX", device, 1, 1, &rmidi)) < 0)
+		return err;
+	strcpy(rmidi->name, "CS46XX");
+	snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_cs46xx_midi_output);
+	snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_cs46xx_midi_input);
+	rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX;
+	rmidi->private_data = chip;
+	chip->rmidi = rmidi;
+	if (rrawmidi)
+		*rrawmidi = NULL;
+	return 0;
+}
+
+
+/*
+ * gameport interface
+ */
+
+#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
+
+static void snd_cs46xx_gameport_trigger(struct gameport *gameport)
+{
+	cs46xx_t *chip = gameport_get_port_data(gameport);
+
+	snd_assert(chip, return);
+	snd_cs46xx_pokeBA0(chip, BA0_JSPT, 0xFF);  //outb(gameport->io, 0xFF);
+}
+
+static unsigned char snd_cs46xx_gameport_read(struct gameport *gameport)
+{
+	cs46xx_t *chip = gameport_get_port_data(gameport);
+
+	snd_assert(chip, return 0);
+	return snd_cs46xx_peekBA0(chip, BA0_JSPT); //inb(gameport->io);
+}
+
+static int snd_cs46xx_gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons)
+{
+	cs46xx_t *chip = gameport_get_port_data(gameport);
+	unsigned js1, js2, jst;
+
+	snd_assert(chip, return 0);
+
+	js1 = snd_cs46xx_peekBA0(chip, BA0_JSC1);
+	js2 = snd_cs46xx_peekBA0(chip, BA0_JSC2);
+	jst = snd_cs46xx_peekBA0(chip, BA0_JSPT);
+	
+	*buttons = (~jst >> 4) & 0x0F; 
+	
+	axes[0] = ((js1 & JSC1_Y1V_MASK) >> JSC1_Y1V_SHIFT) & 0xFFFF;
+	axes[1] = ((js1 & JSC1_X1V_MASK) >> JSC1_X1V_SHIFT) & 0xFFFF;
+	axes[2] = ((js2 & JSC2_Y2V_MASK) >> JSC2_Y2V_SHIFT) & 0xFFFF;
+	axes[3] = ((js2 & JSC2_X2V_MASK) >> JSC2_X2V_SHIFT) & 0xFFFF;
+
+	for(jst=0;jst<4;++jst)
+		if(axes[jst]==0xFFFF) axes[jst] = -1;
+	return 0;
+}
+
+static int snd_cs46xx_gameport_open(struct gameport *gameport, int mode)
+{
+	switch (mode) {
+	case GAMEPORT_MODE_COOKED:
+		return 0;
+	case GAMEPORT_MODE_RAW:
+		return 0;
+	default:
+		return -1;
+	}
+	return 0;
+}
+
+int __devinit snd_cs46xx_gameport(cs46xx_t *chip)
+{
+	struct gameport *gp;
+
+	chip->gameport = gp = gameport_allocate_port();
+	if (!gp) {
+		printk(KERN_ERR "cs46xx: cannot allocate memory for gameport\n");
+		return -ENOMEM;
+	}
+
+	gameport_set_name(gp, "CS46xx Gameport");
+	gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
+	gameport_set_dev_parent(gp, &chip->pci->dev);
+	gameport_set_port_data(gp, chip);
+
+	gp->open = snd_cs46xx_gameport_open;
+	gp->read = snd_cs46xx_gameport_read;
+	gp->trigger = snd_cs46xx_gameport_trigger;
+	gp->cooked_read = snd_cs46xx_gameport_cooked_read;
+
+	snd_cs46xx_pokeBA0(chip, BA0_JSIO, 0xFF); // ?
+	snd_cs46xx_pokeBA0(chip, BA0_JSCTL, JSCTL_SP_MEDIUM_SLOW);
+
+	gameport_register_port(gp);
+
+	return 0;
+}
+
+static inline void snd_cs46xx_remove_gameport(cs46xx_t *chip)
+{
+	if (chip->gameport) {
+		gameport_unregister_port(chip->gameport);
+		chip->gameport = NULL;
+	}
+}
+#else
+int __devinit snd_cs46xx_gameport(cs46xx_t *chip) { return -ENOSYS; }
+static inline void snd_cs46xx_remove_gameport(cs46xx_t *chip) { }
+#endif /* CONFIG_GAMEPORT */
+
+/*
+ *  proc interface
+ */
+
+static long snd_cs46xx_io_read(snd_info_entry_t *entry, void *file_private_data,
+			       struct file *file, char __user *buf,
+			       unsigned long count, unsigned long pos)
+{
+	long size;
+	snd_cs46xx_region_t *region = (snd_cs46xx_region_t *)entry->private_data;
+	
+	size = count;
+	if (pos + (size_t)size > region->size)
+		size = region->size - pos;
+	if (size > 0) {
+		if (copy_to_user_fromio(buf, region->remap_addr + pos, size))
+			return -EFAULT;
+	}
+	return size;
+}
+
+static struct snd_info_entry_ops snd_cs46xx_proc_io_ops = {
+	.read = snd_cs46xx_io_read,
+};
+
+static int __devinit snd_cs46xx_proc_init(snd_card_t * card, cs46xx_t *chip)
+{
+	snd_info_entry_t *entry;
+	int idx;
+	
+	for (idx = 0; idx < 5; idx++) {
+		snd_cs46xx_region_t *region = &chip->region.idx[idx];
+		if (! snd_card_proc_new(card, region->name, &entry)) {
+			entry->content = SNDRV_INFO_CONTENT_DATA;
+			entry->private_data = chip;
+			entry->c.ops = &snd_cs46xx_proc_io_ops;
+			entry->size = region->size;
+			entry->mode = S_IFREG | S_IRUSR;
+		}
+	}
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	cs46xx_dsp_proc_init(card, chip);
+#endif
+	return 0;
+}
+
+static int snd_cs46xx_proc_done(cs46xx_t *chip)
+{
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	cs46xx_dsp_proc_done(chip);
+#endif
+	return 0;
+}
+
+/*
+ * stop the h/w
+ */
+static void snd_cs46xx_hw_stop(cs46xx_t *chip)
+{
+	unsigned int tmp;
+
+	tmp = snd_cs46xx_peek(chip, BA1_PFIE);
+	tmp &= ~0x0000f03f;
+	tmp |=  0x00000010;
+	snd_cs46xx_poke(chip, BA1_PFIE, tmp);	/* playback interrupt disable */
+
+	tmp = snd_cs46xx_peek(chip, BA1_CIE);
+	tmp &= ~0x0000003f;
+	tmp |=  0x00000011;
+	snd_cs46xx_poke(chip, BA1_CIE, tmp);	/* capture interrupt disable */
+
+	/*
+         *  Stop playback DMA.
+	 */
+	tmp = snd_cs46xx_peek(chip, BA1_PCTL);
+	snd_cs46xx_poke(chip, BA1_PCTL, tmp & 0x0000ffff);
+
+	/*
+         *  Stop capture DMA.
+	 */
+	tmp = snd_cs46xx_peek(chip, BA1_CCTL);
+	snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
+
+	/*
+         *  Reset the processor.
+         */
+	snd_cs46xx_reset(chip);
+
+	snd_cs46xx_proc_stop(chip);
+
+	/*
+	 *  Power down the PLL.
+	 */
+	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, 0);
+
+	/*
+	 *  Turn off the Processor by turning off the software clock enable flag in 
+	 *  the clock control register.
+	 */
+	tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1) & ~CLKCR1_SWCE;
+	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
+}
+
+
+static int snd_cs46xx_free(cs46xx_t *chip)
+{
+	int idx;
+
+	snd_assert(chip != NULL, return -EINVAL);
+
+	if (chip->active_ctrl)
+		chip->active_ctrl(chip, 1);
+
+	snd_cs46xx_remove_gameport(chip);
+
+	if (chip->amplifier_ctrl)
+		chip->amplifier_ctrl(chip, -chip->amplifier); /* force to off */
+	
+	snd_cs46xx_proc_done(chip);
+
+	if (chip->region.idx[0].resource)
+		snd_cs46xx_hw_stop(chip);
+
+	for (idx = 0; idx < 5; idx++) {
+		snd_cs46xx_region_t *region = &chip->region.idx[idx];
+		if (region->remap_addr)
+			iounmap(region->remap_addr);
+		if (region->resource) {
+			release_resource(region->resource);
+			kfree_nocheck(region->resource);
+		}
+	}
+	if (chip->irq >= 0)
+		free_irq(chip->irq, (void *)chip);
+
+	if (chip->active_ctrl)
+		chip->active_ctrl(chip, -chip->amplifier);
+	
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	if (chip->dsp_spos_instance) {
+		cs46xx_dsp_spos_destroy(chip);
+		chip->dsp_spos_instance = NULL;
+	}
+#endif
+	
+	pci_disable_device(chip->pci);
+	kfree(chip);
+	return 0;
+}
+
+static int snd_cs46xx_dev_free(snd_device_t *device)
+{
+	cs46xx_t *chip = device->device_data;
+	return snd_cs46xx_free(chip);
+}
+
+/*
+ *  initialize chip
+ */
+static int snd_cs46xx_chip_init(cs46xx_t *chip)
+{
+	int timeout;
+
+	/* 
+	 *  First, blast the clock control register to zero so that the PLL starts
+         *  out in a known state, and blast the master serial port control register
+         *  to zero so that the serial ports also start out in a known state.
+         */
+        snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, 0);
+        snd_cs46xx_pokeBA0(chip, BA0_SERMC1, 0);
+
+	/*
+	 *  If we are in AC97 mode, then we must set the part to a host controlled
+         *  AC-link.  Otherwise, we won't be able to bring up the link.
+         */        
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_2_0 | 
+			   SERACC_TWO_CODECS);	/* 2.00 dual codecs */
+	/* snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_2_0); */ /* 2.00 codec */
+#else
+	snd_cs46xx_pokeBA0(chip, BA0_SERACC, SERACC_HSP | SERACC_CHIP_TYPE_1_03); /* 1.03 codec */
+#endif
+
+        /*
+         *  Drive the ARST# pin low for a minimum of 1uS (as defined in the AC97
+         *  spec) and then drive it high.  This is done for non AC97 modes since
+         *  there might be logic external to the CS461x that uses the ARST# line
+         *  for a reset.
+         */
+	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, 0);
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, 0);
+#endif
+	udelay(50);
+	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_RSTN);
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_RSTN);
+#endif
+    
+	/*
+	 *  The first thing we do here is to enable sync generation.  As soon
+	 *  as we start receiving bit clock, we'll start producing the SYNC
+	 *  signal.
+	 */
+	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_ESYN | ACCTL_RSTN);
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_ESYN | ACCTL_RSTN);
+#endif
+
+	/*
+	 *  Now wait for a short while to allow the AC97 part to start
+	 *  generating bit clock (so we don't try to start the PLL without an
+	 *  input clock).
+	 */
+	mdelay(10);
+
+	/*
+	 *  Set the serial port timing configuration, so that
+	 *  the clock control circuit gets its clock from the correct place.
+	 */
+	snd_cs46xx_pokeBA0(chip, BA0_SERMC1, SERMC1_PTC_AC97);
+
+	/*
+	 *  Write the selected clock control setup to the hardware.  Do not turn on
+	 *  SWCE yet (if requested), so that the devices clocked by the output of
+	 *  PLL are not clocked until the PLL is stable.
+	 */
+	snd_cs46xx_pokeBA0(chip, BA0_PLLCC, PLLCC_LPF_1050_2780_KHZ | PLLCC_CDR_73_104_MHZ);
+	snd_cs46xx_pokeBA0(chip, BA0_PLLM, 0x3a);
+	snd_cs46xx_pokeBA0(chip, BA0_CLKCR2, CLKCR2_PDIVS_8);
+
+	/*
+	 *  Power up the PLL.
+	 */
+	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, CLKCR1_PLLP);
+
+	/*
+         *  Wait until the PLL has stabilized.
+	 */
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	schedule_timeout(HZ/10); /* 100ms */
+
+	/*
+	 *  Turn on clocking of the core so that we can setup the serial ports.
+	 */
+	snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, CLKCR1_PLLP | CLKCR1_SWCE);
+
+	/*
+	 * Enable FIFO  Host Bypass
+	 */
+	snd_cs46xx_pokeBA0(chip, BA0_SERBCF, SERBCF_HBP);
+
+	/*
+	 *  Fill the serial port FIFOs with silence.
+	 */
+	snd_cs46xx_clear_serial_FIFOs(chip);
+
+	/*
+	 *  Set the serial port FIFO pointer to the first sample in the FIFO.
+	 */
+	/* snd_cs46xx_pokeBA0(chip, BA0_SERBSP, 0); */
+
+	/*
+	 *  Write the serial port configuration to the part.  The master
+	 *  enable bit is not set until all other values have been written.
+	 */
+	snd_cs46xx_pokeBA0(chip, BA0_SERC1, SERC1_SO1F_AC97 | SERC1_SO1EN);
+	snd_cs46xx_pokeBA0(chip, BA0_SERC2, SERC2_SI1F_AC97 | SERC1_SO1EN);
+	snd_cs46xx_pokeBA0(chip, BA0_SERMC1, SERMC1_PTC_AC97 | SERMC1_MSPE);
+
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	snd_cs46xx_pokeBA0(chip, BA0_SERC7, SERC7_ASDI2EN);
+	snd_cs46xx_pokeBA0(chip, BA0_SERC3, 0);
+	snd_cs46xx_pokeBA0(chip, BA0_SERC4, 0);
+	snd_cs46xx_pokeBA0(chip, BA0_SERC5, 0);
+	snd_cs46xx_pokeBA0(chip, BA0_SERC6, 1);
+#endif
+
+	mdelay(5);
+
+
+	/*
+	 * Wait for the codec ready signal from the AC97 codec.
+	 */
+	timeout = 150;
+	while (timeout-- > 0) {
+		/*
+		 *  Read the AC97 status register to see if we've seen a CODEC READY
+		 *  signal from the AC97 codec.
+		 */
+		if (snd_cs46xx_peekBA0(chip, BA0_ACSTS) & ACSTS_CRDY)
+			goto ok1;
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		schedule_timeout((HZ+99)/100);
+	}
+
+
+	snd_printk("create - never read codec ready from AC'97\n");
+	snd_printk("it is not probably bug, try to use CS4236 driver\n");
+	return -EIO;
+ ok1:
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	{
+		int count;
+		for (count = 0; count < 150; count++) {
+			/* First, we want to wait for a short time. */
+			udelay(25);
+        
+			if (snd_cs46xx_peekBA0(chip, BA0_ACSTS2) & ACSTS_CRDY)
+				break;
+		}
+
+		/*
+		 *  Make sure CODEC is READY.
+		 */
+		if (!(snd_cs46xx_peekBA0(chip, BA0_ACSTS2) & ACSTS_CRDY))
+			snd_printdd("cs46xx: never read card ready from secondary AC'97\n");
+	}
+#endif
+
+	/*
+	 *  Assert the vaid frame signal so that we can start sending commands
+	 *  to the AC97 codec.
+	 */
+	snd_cs46xx_pokeBA0(chip, BA0_ACCTL, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	snd_cs46xx_pokeBA0(chip, BA0_ACCTL2, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
+#endif
+
+
+	/*
+	 *  Wait until we've sampled input slots 3 and 4 as valid, meaning that
+	 *  the codec is pumping ADC data across the AC-link.
+	 */
+	timeout = 150;
+	while (timeout-- > 0) {
+		/*
+		 *  Read the input slot valid register and see if input slots 3 and
+		 *  4 are valid yet.
+		 */
+		if ((snd_cs46xx_peekBA0(chip, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4))
+			goto ok2;
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		schedule_timeout((HZ+99)/100);
+	}
+
+#ifndef CONFIG_SND_CS46XX_NEW_DSP
+	snd_printk("create - never read ISV3 & ISV4 from AC'97\n");
+	return -EIO;
+#else
+	/* This may happen on a cold boot with a Terratec SiXPack 5.1.
+	   Reloading the driver may help, if there's other soundcards 
+	   with the same problem I would like to know. (Benny) */
+
+	snd_printk("ERROR: snd-cs46xx: never read ISV3 & ISV4 from AC'97\n");
+	snd_printk("       Try reloading the ALSA driver, if you find something\n");
+        snd_printk("       broken or not working on your soundcard upon\n");
+	snd_printk("       this message please report to alsa-devel@lists.sourceforge.net\n");
+
+	return -EIO;
+#endif
+ ok2:
+
+	/*
+	 *  Now, assert valid frame and the slot 3 and 4 valid bits.  This will
+	 *  commense the transfer of digital audio data to the AC97 codec.
+	 */
+
+	snd_cs46xx_pokeBA0(chip, BA0_ACOSV, ACOSV_SLV3 | ACOSV_SLV4);
+
+
+	/*
+	 *  Power down the DAC and ADC.  We will power them up (if) when we need
+	 *  them.
+	 */
+	/* snd_cs46xx_pokeBA0(chip, BA0_AC97_POWERDOWN, 0x300); */
+
+	/*
+	 *  Turn off the Processor by turning off the software clock enable flag in 
+	 *  the clock control register.
+	 */
+	/* tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1) & ~CLKCR1_SWCE; */
+	/* snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp); */
+
+	return 0;
+}
+
+/*
+ *  start and load DSP 
+ */
+int __devinit snd_cs46xx_start_dsp(cs46xx_t *chip)
+{	
+	unsigned int tmp;
+	/*
+	 *  Reset the processor.
+	 */
+	snd_cs46xx_reset(chip);
+	/*
+	 *  Download the image to the processor.
+	 */
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+#if 0
+	if (cs46xx_dsp_load_module(chip, &cwcemb80_module) < 0) {
+		snd_printk(KERN_ERR "image download error\n");
+		return -EIO;
+	}
+#endif
+
+	if (cs46xx_dsp_load_module(chip, &cwc4630_module) < 0) {
+		snd_printk(KERN_ERR "image download error [cwc4630]\n");
+		return -EIO;
+	}
+
+	if (cs46xx_dsp_load_module(chip, &cwcasync_module) < 0) {
+		snd_printk(KERN_ERR "image download error [cwcasync]\n");
+		return -EIO;
+	}
+
+	if (cs46xx_dsp_load_module(chip, &cwcsnoop_module) < 0) {
+		snd_printk(KERN_ERR "image download error [cwcsnoop]\n");
+		return -EIO;
+	}
+
+	if (cs46xx_dsp_load_module(chip, &cwcbinhack_module) < 0) {
+		snd_printk(KERN_ERR "image download error [cwcbinhack]\n");
+		return -EIO;
+	}
+
+	if (cs46xx_dsp_load_module(chip, &cwcdma_module) < 0) {
+		snd_printk(KERN_ERR "image download error [cwcdma]\n");
+		return -EIO;
+	}
+
+	if (cs46xx_dsp_scb_and_task_init(chip) < 0)
+		return -EIO;
+#else
+	/* old image */
+	if (snd_cs46xx_download_image(chip) < 0) {
+		snd_printk("image download error\n");
+		return -EIO;
+	}
+
+	/*
+         *  Stop playback DMA.
+	 */
+	tmp = snd_cs46xx_peek(chip, BA1_PCTL);
+	chip->play_ctl = tmp & 0xffff0000;
+	snd_cs46xx_poke(chip, BA1_PCTL, tmp & 0x0000ffff);
+#endif
+
+	/*
+         *  Stop capture DMA.
+	 */
+	tmp = snd_cs46xx_peek(chip, BA1_CCTL);
+	chip->capt.ctl = tmp & 0x0000ffff;
+	snd_cs46xx_poke(chip, BA1_CCTL, tmp & 0xffff0000);
+
+	mdelay(5);
+
+	snd_cs46xx_set_play_sample_rate(chip, 8000);
+	snd_cs46xx_set_capture_sample_rate(chip, 8000);
+
+	snd_cs46xx_proc_start(chip);
+
+	/*
+	 *  Enable interrupts on the part.
+	 */
+	snd_cs46xx_pokeBA0(chip, BA0_HICR, HICR_IEV | HICR_CHGM);
+        
+	tmp = snd_cs46xx_peek(chip, BA1_PFIE);
+	tmp &= ~0x0000f03f;
+	snd_cs46xx_poke(chip, BA1_PFIE, tmp);	/* playback interrupt enable */
+
+	tmp = snd_cs46xx_peek(chip, BA1_CIE);
+	tmp &= ~0x0000003f;
+	tmp |=  0x00000001;
+	snd_cs46xx_poke(chip, BA1_CIE, tmp);	/* capture interrupt enable */
+	
+#ifndef CONFIG_SND_CS46XX_NEW_DSP
+	/* set the attenuation to 0dB */ 
+	snd_cs46xx_poke(chip, BA1_PVOL, 0x80008000);
+	snd_cs46xx_poke(chip, BA1_CVOL, 0x80008000);
+#endif
+
+	return 0;
+}
+
+
+/*
+ *	AMP control - null AMP
+ */
+ 
+static void amp_none(cs46xx_t *chip, int change)
+{	
+}
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+static int voyetra_setup_eapd_slot(cs46xx_t *chip)
+{
+	
+	u32 idx, valid_slots,tmp,powerdown = 0;
+	u16 modem_power,pin_config,logic_type;
+
+	snd_printdd ("cs46xx: cs46xx_setup_eapd_slot()+\n");
+
+	/*
+	 *  See if the devices are powered down.  If so, we must power them up first
+	 *  or they will not respond.
+	 */
+	tmp = snd_cs46xx_peekBA0(chip, BA0_CLKCR1);
+
+	if (!(tmp & CLKCR1_SWCE)) {
+		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp | CLKCR1_SWCE);
+		powerdown = 1;
+	}
+
+	/*
+	 * Clear PRA.  The Bonzo chip will be used for GPIO not for modem
+	 * stuff.
+	 */
+	if(chip->nr_ac97_codecs != 2) {
+		snd_printk (KERN_ERR "cs46xx: cs46xx_setup_eapd_slot() - no secondary codec configured\n");
+		return -EINVAL;
+	}
+
+	modem_power = snd_cs46xx_codec_read (chip, 
+					     AC97_EXTENDED_MSTATUS,
+					     CS46XX_SECONDARY_CODEC_INDEX);
+	modem_power &=0xFEFF;
+
+	snd_cs46xx_codec_write(chip, 
+			       AC97_EXTENDED_MSTATUS, modem_power,
+			       CS46XX_SECONDARY_CODEC_INDEX);
+
+	/*
+	 * Set GPIO pin's 7 and 8 so that they are configured for output.
+	 */
+	pin_config = snd_cs46xx_codec_read (chip, 
+					    AC97_GPIO_CFG,
+					    CS46XX_SECONDARY_CODEC_INDEX);
+	pin_config &=0x27F;
+
+	snd_cs46xx_codec_write(chip, 
+			       AC97_GPIO_CFG, pin_config,
+			       CS46XX_SECONDARY_CODEC_INDEX);
+    
+	/*
+	 * Set GPIO pin's 7 and 8 so that they are compatible with CMOS logic.
+	 */
+
+	logic_type = snd_cs46xx_codec_read(chip, AC97_GPIO_POLARITY,
+					   CS46XX_SECONDARY_CODEC_INDEX);
+	logic_type &=0x27F; 
+
+	snd_cs46xx_codec_write (chip, AC97_GPIO_POLARITY, logic_type,
+				CS46XX_SECONDARY_CODEC_INDEX);
+
+	valid_slots = snd_cs46xx_peekBA0(chip, BA0_ACOSV);
+	valid_slots |= 0x200;
+	snd_cs46xx_pokeBA0(chip, BA0_ACOSV, valid_slots);
+
+	if ( cs46xx_wait_for_fifo(chip,1) ) {
+	  snd_printdd("FIFO is busy\n");
+	  
+	  return -EINVAL;
+	}
+
+	/*
+	 * Fill slots 12 with the correct value for the GPIO pins. 
+	 */
+	for(idx = 0x90; idx <= 0x9F; idx++) {
+		/*
+		 * Initialize the fifo so that bits 7 and 8 are on.
+		 *
+		 * Remember that the GPIO pins in bonzo are shifted by 4 bits to
+		 * the left.  0x1800 corresponds to bits 7 and 8.
+		 */
+		snd_cs46xx_pokeBA0(chip, BA0_SERBWP, 0x1800);
+
+		/*
+		 * Wait for command to complete
+		 */
+		if ( cs46xx_wait_for_fifo(chip,200) ) {
+			snd_printdd("failed waiting for FIFO at addr (%02X)\n",idx);
+
+			return -EINVAL;
+		}
+            
+		/*
+		 * Write the serial port FIFO index.
+		 */
+		snd_cs46xx_pokeBA0(chip, BA0_SERBAD, idx);
+      
+		/*
+		 * Tell the serial port to load the new value into the FIFO location.
+		 */
+		snd_cs46xx_pokeBA0(chip, BA0_SERBCM, SERBCM_WRC);
+	}
+
+	/* wait for last command to complete */
+	cs46xx_wait_for_fifo(chip,200);
+
+	/*
+	 *  Now, if we powered up the devices, then power them back down again.
+	 *  This is kinda ugly, but should never happen.
+	 */
+	if (powerdown)
+		snd_cs46xx_pokeBA0(chip, BA0_CLKCR1, tmp);
+
+	return 0;
+}
+#endif
+
+/*
+ *	Crystal EAPD mode
+ */
+ 
+static void amp_voyetra(cs46xx_t *chip, int change)
+{
+	/* Manage the EAPD bit on the Crystal 4297 
+	   and the Analog AD1885 */
+	   
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	int old = chip->amplifier;
+#endif
+	int oval, val;
+	
+	chip->amplifier += change;
+	oval = snd_cs46xx_codec_read(chip, AC97_POWERDOWN,
+				     CS46XX_PRIMARY_CODEC_INDEX);
+	val = oval;
+	if (chip->amplifier) {
+		/* Turn the EAPD amp on */
+		val |= 0x8000;
+	} else {
+		/* Turn the EAPD amp off */
+		val &= ~0x8000;
+	}
+	if (val != oval) {
+		snd_cs46xx_codec_write(chip, AC97_POWERDOWN, val,
+				       CS46XX_PRIMARY_CODEC_INDEX);
+		if (chip->eapd_switch)
+			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
+				       &chip->eapd_switch->id);
+	}
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	if (chip->amplifier && !old) {
+		voyetra_setup_eapd_slot(chip);
+	}
+#endif
+}
+
+static void hercules_init(cs46xx_t *chip) 
+{
+	/* default: AMP off, and SPDIF input optical */
+	snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, EGPIODR_GPOE0);
+	snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, EGPIODR_GPOE0);
+}
+
+
+/*
+ *	Game Theatre XP card - EGPIO[2] is used to enable the external amp.
+ */ 
+static void amp_hercules(cs46xx_t *chip, int change)
+{
+	int old = chip->amplifier;
+	int val1 = snd_cs46xx_peekBA0(chip, BA0_EGPIODR);
+	int val2 = snd_cs46xx_peekBA0(chip, BA0_EGPIOPTR);
+
+	chip->amplifier += change;
+	if (chip->amplifier && !old) {
+		snd_printdd ("Hercules amplifier ON\n");
+
+		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, 
+				   EGPIODR_GPOE2 | val1);     /* enable EGPIO2 output */
+		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, 
+				   EGPIOPTR_GPPT2 | val2);   /* open-drain on output */
+	} else if (old && !chip->amplifier) {
+		snd_printdd ("Hercules amplifier OFF\n");
+		snd_cs46xx_pokeBA0(chip, BA0_EGPIODR,  val1 & ~EGPIODR_GPOE2); /* disable */
+		snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, val2 & ~EGPIOPTR_GPPT2); /* disable */
+	}
+}
+
+static void voyetra_mixer_init (cs46xx_t *chip)
+{
+	snd_printdd ("initializing Voyetra mixer\n");
+
+	/* Enable SPDIF out */
+	snd_cs46xx_pokeBA0(chip, BA0_EGPIODR, EGPIODR_GPOE0);
+	snd_cs46xx_pokeBA0(chip, BA0_EGPIOPTR, EGPIODR_GPOE0);
+}
+
+static void hercules_mixer_init (cs46xx_t *chip)
+{
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	unsigned int idx;
+	int err;
+	snd_card_t *card = chip->card;
+#endif
+
+	/* set EGPIO to default */
+	hercules_init(chip);
+
+	snd_printdd ("initializing Hercules mixer\n");
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	for (idx = 0 ; idx < ARRAY_SIZE(snd_hercules_controls); idx++) {
+		snd_kcontrol_t *kctl;
+
+		kctl = snd_ctl_new1(&snd_hercules_controls[idx], chip);
+		if ((err = snd_ctl_add(card, kctl)) < 0) {
+			printk (KERN_ERR "cs46xx: failed to initialize Hercules mixer (%d)\n",err);
+			break;
+		}
+	}
+#endif
+}
+
+
+#if 0
+/*
+ *	Untested
+ */
+ 
+static void amp_voyetra_4294(cs46xx_t *chip, int change)
+{
+	chip->amplifier += change;
+
+	if (chip->amplifier) {
+		/* Switch the GPIO pins 7 and 8 to open drain */
+		snd_cs46xx_codec_write(chip, 0x4C,
+				       snd_cs46xx_codec_read(chip, 0x4C) & 0xFE7F);
+		snd_cs46xx_codec_write(chip, 0x4E,
+				       snd_cs46xx_codec_read(chip, 0x4E) | 0x0180);
+		/* Now wake the AMP (this might be backwards) */
+		snd_cs46xx_codec_write(chip, 0x54,
+				       snd_cs46xx_codec_read(chip, 0x54) & ~0x0180);
+	} else {
+		snd_cs46xx_codec_write(chip, 0x54,
+				       snd_cs46xx_codec_read(chip, 0x54) | 0x0180);
+	}
+}
+#endif
+
+
+/*
+ * piix4 pci ids
+ */
+#ifndef PCI_VENDOR_ID_INTEL
+#define PCI_VENDOR_ID_INTEL 0x8086
+#endif /* PCI_VENDOR_ID_INTEL */
+
+#ifndef PCI_DEVICE_ID_INTEL_82371AB_3
+#define PCI_DEVICE_ID_INTEL_82371AB_3 0x7113
+#endif /* PCI_DEVICE_ID_INTEL_82371AB_3 */
+
+/*
+ *	Handle the CLKRUN on a thinkpad. We must disable CLKRUN support
+ *	whenever we need to beat on the chip.
+ *
+ *	The original idea and code for this hack comes from David Kaiser at
+ *	Linuxcare. Perhaps one day Crystal will document their chips well
+ *	enough to make them useful.
+ */
+ 
+static void clkrun_hack(cs46xx_t *chip, int change)
+{
+	u16 control, nval;
+	
+	if (chip->acpi_dev == NULL)
+		return;
+
+	chip->amplifier += change;
+	
+	/* Read ACPI port */	
+	nval = control = inw(chip->acpi_port + 0x10);
+
+	/* Flip CLKRUN off while running */
+	if (! chip->amplifier)
+		nval |= 0x2000;
+	else
+		nval &= ~0x2000;
+	if (nval != control)
+		outw(nval, chip->acpi_port + 0x10);
+}
+
+	
+/*
+ * detect intel piix4
+ */
+static void clkrun_init(cs46xx_t *chip)
+{
+	u8 pp;
+
+	chip->acpi_dev = pci_find_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
+	if (chip->acpi_dev == NULL)
+		return;		/* Not a thinkpad thats for sure */
+
+	/* Find the control port */		
+	pci_read_config_byte(chip->acpi_dev, 0x41, &pp);
+	chip->acpi_port = pp << 8;
+}
+
+
+/*
+ * Card subid table
+ */
+ 
+struct cs_card_type
+{
+	u16 vendor;
+	u16 id;
+	char *name;
+	void (*init)(cs46xx_t *);
+	void (*amp)(cs46xx_t *, int);
+	void (*active)(cs46xx_t *, int);
+	void (*mixer_init)(cs46xx_t *);
+};
+
+static struct cs_card_type __devinitdata cards[] = {
+	{
+		.vendor = 0x1489,
+		.id = 0x7001,
+		.name = "Genius Soundmaker 128 value",
+		/* nothing special */
+	},
+	{
+		.vendor = 0x5053,
+		.id = 0x3357,
+		.name = "Voyetra",
+		.amp = amp_voyetra,
+		.mixer_init = voyetra_mixer_init,
+	},
+	{
+		.vendor = 0x1071,
+		.id = 0x6003,
+		.name = "Mitac MI6020/21",
+		.amp = amp_voyetra,
+	},
+	{
+		.vendor = 0x14AF,
+		.id = 0x0050,
+		.name = "Hercules Game Theatre XP",
+		.amp = amp_hercules,
+		.mixer_init = hercules_mixer_init,
+	},
+	{
+		.vendor = 0x1681,
+		.id = 0x0050,
+		.name = "Hercules Game Theatre XP",
+		.amp = amp_hercules,
+		.mixer_init = hercules_mixer_init,
+	},
+	{
+		.vendor = 0x1681,
+		.id = 0x0051,
+		.name = "Hercules Game Theatre XP",
+		.amp = amp_hercules,
+		.mixer_init = hercules_mixer_init,
+
+	},
+	{
+		.vendor = 0x1681,
+		.id = 0x0052,
+		.name = "Hercules Game Theatre XP",
+		.amp = amp_hercules,
+		.mixer_init = hercules_mixer_init,
+	},
+	{
+		.vendor = 0x1681,
+		.id = 0x0053,
+		.name = "Hercules Game Theatre XP",
+		.amp = amp_hercules,
+		.mixer_init = hercules_mixer_init,
+	},
+	{
+		.vendor = 0x1681,
+		.id = 0x0054,
+		.name = "Hercules Game Theatre XP",
+		.amp = amp_hercules,
+		.mixer_init = hercules_mixer_init,
+	},
+	/* Teratec */
+	{
+		.vendor = 0x153b,
+		.id = 0x1136,
+		.name = "Terratec SiXPack 5.1",
+	},
+	/* Not sure if the 570 needs the clkrun hack */
+	{
+		.vendor = PCI_VENDOR_ID_IBM,
+		.id = 0x0132,
+		.name = "Thinkpad 570",
+		.init = clkrun_init,
+		.active = clkrun_hack,
+	},
+	{
+		.vendor = PCI_VENDOR_ID_IBM,
+		.id = 0x0153,
+		.name = "Thinkpad 600X/A20/T20",
+		.init = clkrun_init,
+		.active = clkrun_hack,
+	},
+	{
+		.vendor = PCI_VENDOR_ID_IBM,
+		.id = 0x1010,
+		.name = "Thinkpad 600E (unsupported)",
+	},
+	{} /* terminator */
+};
+
+
+/*
+ * APM support
+ */
+#ifdef CONFIG_PM
+static int snd_cs46xx_suspend(snd_card_t *card, pm_message_t state)
+{
+	cs46xx_t *chip = card->pm_private_data;
+	int amp_saved;
+
+	snd_pcm_suspend_all(chip->pcm);
+	// chip->ac97_powerdown = snd_cs46xx_codec_read(chip, AC97_POWER_CONTROL);
+	// chip->ac97_general_purpose = snd_cs46xx_codec_read(chip, BA0_AC97_GENERAL_PURPOSE);
+
+	snd_ac97_suspend(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]);
+	if (chip->ac97[CS46XX_SECONDARY_CODEC_INDEX])
+		snd_ac97_suspend(chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]);
+
+	amp_saved = chip->amplifier;
+	/* turn off amp */
+	chip->amplifier_ctrl(chip, -chip->amplifier);
+	snd_cs46xx_hw_stop(chip);
+	/* disable CLKRUN */
+	chip->active_ctrl(chip, -chip->amplifier);
+	chip->amplifier = amp_saved; /* restore the status */
+	pci_disable_device(chip->pci);
+	return 0;
+}
+
+static int snd_cs46xx_resume(snd_card_t *card)
+{
+	cs46xx_t *chip = card->pm_private_data;
+	int amp_saved;
+
+	pci_enable_device(chip->pci);
+	pci_set_master(chip->pci);
+	amp_saved = chip->amplifier;
+	chip->amplifier = 0;
+	chip->active_ctrl(chip, 1); /* force to on */
+
+	snd_cs46xx_chip_init(chip);
+
+#if 0
+	snd_cs46xx_codec_write(chip, BA0_AC97_GENERAL_PURPOSE, 
+			       chip->ac97_general_purpose);
+	snd_cs46xx_codec_write(chip, AC97_POWER_CONTROL, 
+			       chip->ac97_powerdown);
+	mdelay(10);
+	snd_cs46xx_codec_write(chip, BA0_AC97_POWERDOWN,
+			       chip->ac97_powerdown);
+	mdelay(5);
+#endif
+
+	snd_ac97_resume(chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]);
+	if (chip->ac97[CS46XX_SECONDARY_CODEC_INDEX])
+		snd_ac97_resume(chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]);
+
+	if (amp_saved)
+		chip->amplifier_ctrl(chip, 1); /* turn amp on */
+	else
+		chip->active_ctrl(chip, -1); /* disable CLKRUN */
+	chip->amplifier = amp_saved;
+	return 0;
+}
+#endif /* CONFIG_PM */
+
+
+/*
+ */
+
+int __devinit snd_cs46xx_create(snd_card_t * card,
+		      struct pci_dev * pci,
+		      int external_amp, int thinkpad,
+		      cs46xx_t ** rchip)
+{
+	cs46xx_t *chip;
+	int err, idx;
+	snd_cs46xx_region_t *region;
+	struct cs_card_type *cp;
+	u16 ss_card, ss_vendor;
+	static snd_device_ops_t ops = {
+		.dev_free =	snd_cs46xx_dev_free,
+	};
+	
+	*rchip = NULL;
+
+	/* enable PCI device */
+	if ((err = pci_enable_device(pci)) < 0)
+		return err;
+
+	chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
+	if (chip == NULL) {
+		pci_disable_device(pci);
+		return -ENOMEM;
+	}
+	spin_lock_init(&chip->reg_lock);
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	init_MUTEX(&chip->spos_mutex);
+#endif
+	chip->card = card;
+	chip->pci = pci;
+	chip->irq = -1;
+	chip->ba0_addr = pci_resource_start(pci, 0);
+	chip->ba1_addr = pci_resource_start(pci, 1);
+	if (chip->ba0_addr == 0 || chip->ba0_addr == (unsigned long)~0 ||
+	    chip->ba1_addr == 0 || chip->ba1_addr == (unsigned long)~0) {
+	    	snd_printk("wrong address(es) - ba0 = 0x%lx, ba1 = 0x%lx\n", chip->ba0_addr, chip->ba1_addr);
+	    	snd_cs46xx_free(chip);
+	    	return -ENOMEM;
+	}
+
+	region = &chip->region.name.ba0;
+	strcpy(region->name, "CS46xx_BA0");
+	region->base = chip->ba0_addr;
+	region->size = CS46XX_BA0_SIZE;
+
+	region = &chip->region.name.data0;
+	strcpy(region->name, "CS46xx_BA1_data0");
+	region->base = chip->ba1_addr + BA1_SP_DMEM0;
+	region->size = CS46XX_BA1_DATA0_SIZE;
+
+	region = &chip->region.name.data1;
+	strcpy(region->name, "CS46xx_BA1_data1");
+	region->base = chip->ba1_addr + BA1_SP_DMEM1;
+	region->size = CS46XX_BA1_DATA1_SIZE;
+
+	region = &chip->region.name.pmem;
+	strcpy(region->name, "CS46xx_BA1_pmem");
+	region->base = chip->ba1_addr + BA1_SP_PMEM;
+	region->size = CS46XX_BA1_PRG_SIZE;
+
+	region = &chip->region.name.reg;
+	strcpy(region->name, "CS46xx_BA1_reg");
+	region->base = chip->ba1_addr + BA1_SP_REG;
+	region->size = CS46XX_BA1_REG_SIZE;
+
+	/* set up amp and clkrun hack */
+	pci_read_config_word(pci, PCI_SUBSYSTEM_VENDOR_ID, &ss_vendor);
+	pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &ss_card);
+
+	for (cp = &cards[0]; cp->name; cp++) {
+		if (cp->vendor == ss_vendor && cp->id == ss_card) {
+			snd_printdd ("hack for %s enabled\n", cp->name);
+
+			chip->amplifier_ctrl = cp->amp;
+			chip->active_ctrl = cp->active;
+			chip->mixer_init = cp->mixer_init;
+
+			if (cp->init)
+				cp->init(chip);
+			break;
+		}
+	}
+
+	if (external_amp) {
+		snd_printk("Crystal EAPD support forced on.\n");
+		chip->amplifier_ctrl = amp_voyetra;
+	}
+
+	if (thinkpad) {
+		snd_printk("Activating CLKRUN hack for Thinkpad.\n");
+		chip->active_ctrl = clkrun_hack;
+		clkrun_init(chip);
+	}
+	
+	if (chip->amplifier_ctrl == NULL)
+		chip->amplifier_ctrl = amp_none;
+	if (chip->active_ctrl == NULL)
+		chip->active_ctrl = amp_none;
+
+	chip->active_ctrl(chip, 1); /* enable CLKRUN */
+
+	pci_set_master(pci);
+
+	for (idx = 0; idx < 5; idx++) {
+		region = &chip->region.idx[idx];
+		if ((region->resource = request_mem_region(region->base, region->size, region->name)) == NULL) {
+			snd_printk("unable to request memory region 0x%lx-0x%lx\n", region->base, region->base + region->size - 1);
+			snd_cs46xx_free(chip);
+			return -EBUSY;
+		}
+		region->remap_addr = ioremap_nocache(region->base, region->size);
+		if (region->remap_addr == NULL) {
+			snd_printk("%s ioremap problem\n", region->name);
+			snd_cs46xx_free(chip);
+			return -ENOMEM;
+		}
+	}
+
+	if (request_irq(pci->irq, snd_cs46xx_interrupt, SA_INTERRUPT|SA_SHIRQ, "CS46XX", (void *) chip)) {
+		snd_printk("unable to grab IRQ %d\n", pci->irq);
+		snd_cs46xx_free(chip);
+		return -EBUSY;
+	}
+	chip->irq = pci->irq;
+
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	chip->dsp_spos_instance = cs46xx_dsp_spos_create(chip);
+	if (chip->dsp_spos_instance == NULL) {
+		snd_cs46xx_free(chip);
+		return -ENOMEM;
+	}
+#endif
+
+	err = snd_cs46xx_chip_init(chip);
+	if (err < 0) {
+		snd_cs46xx_free(chip);
+		return err;
+	}
+
+	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
+		snd_cs46xx_free(chip);
+		return err;
+	}
+	
+	snd_cs46xx_proc_init(card, chip);
+
+	snd_card_set_pm_callback(card, snd_cs46xx_suspend, snd_cs46xx_resume, chip);
+
+	chip->active_ctrl(chip, -1); /* disable CLKRUN */
+
+	snd_card_set_dev(card, &pci->dev);
+
+	*rchip = chip;
+	return 0;
+}