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!
author: Linus Torvalds 2005-04-16 15:20:36 -0700
committer: Linus Torvalds 2005-04-16 15:20:36 -0700
commit: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree: 0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/isa/cs423x
6 files changed, 3738 insertions, 0 deletions
diff --git a/sound/isa/cs423x/Makefile b/sound/isa/cs423x/Makefile
new file mode 100644
index 000000000000..d2afaea30cbc
--- /dev/null
+++ b/sound/isa/cs423x/Makefile
@@ -0,0 +1,25 @@
+#
+# Makefile for ALSA
+# Copyright (c) 2001 by Jaroslav Kysela <perex@suse.cz>
+#
+
+snd-cs4231-lib-objs := cs4231_lib.o
+snd-cs4236-lib-objs := cs4236_lib.o
+snd-cs4231-objs := cs4231.o
+snd-cs4232-objs := cs4232.o
+snd-cs4236-objs := cs4236.o
+
+# Toplevel Module Dependency
+obj-$(CONFIG_SND_AZT2320) += snd-cs4231-lib.o
+obj-$(CONFIG_SND_OPL3SA2) += snd-cs4231-lib.o
+obj-$(CONFIG_SND_CS4231) += snd-cs4231.o snd-cs4231-lib.o
+obj-$(CONFIG_SND_CS4232) += snd-cs4232.o snd-cs4231-lib.o
+obj-$(CONFIG_SND_CS4236) += snd-cs4236.o snd-cs4236-lib.o snd-cs4231-lib.o
+obj-$(CONFIG_SND_GUSMAX) += snd-cs4231-lib.o
+obj-$(CONFIG_SND_INTERWAVE) += snd-cs4231-lib.o
+obj-$(CONFIG_SND_INTERWAVE_STB) += snd-cs4231-lib.o
+obj-$(CONFIG_SND_OPTI92X_CS4231) += snd-cs4231-lib.o
+obj-$(CONFIG_SND_WAVEFRONT) += snd-cs4231-lib.o
+obj-$(CONFIG_SND_SSCAPE) += snd-cs4231-lib.o
+
+obj-m := $(sort $(obj-m))
diff --git a/sound/isa/cs423x/cs4231.c b/sound/isa/cs423x/cs4231.c
new file mode 100644
index 000000000000..7640837659ea
--- /dev/null
+++ b/sound/isa/cs423x/cs4231.c
@@ -0,0 +1,169 @@
+/*
+ *  Generic driver for CS4231 chips
+ *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *  Originally the CS4232/CS4232A driver, modified for use on CS4231 by
+ *  Tugrul Galatali <galatalt@stuy.edu>
+ *
+ *   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/init.h>
+#include <linux/time.h>
+#include <linux/wait.h>
+#include <linux/moduleparam.h>
+#include <sound/core.h>
+#include <sound/cs4231.h>
+#include <sound/mpu401.h>
+#include <sound/initval.h>
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
+MODULE_DESCRIPTION("Generic CS4231");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4231}}");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;	/* Enable this card */
+static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
+static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
+static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,11,12,15 */
+static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 9,11,12,15 */
+static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3,5,6,7 */
+static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3,5,6,7 */
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for CS4231 soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for CS4231 soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable CS4231 soundcard.");
+module_param_array(port, long, NULL, 0444);
+MODULE_PARM_DESC(port, "Port # for CS4231 driver.");
+module_param_array(mpu_port, long, NULL, 0444);
+MODULE_PARM_DESC(mpu_port, "MPU-401 port # for CS4231 driver.");
+module_param_array(irq, int, NULL, 0444);
+MODULE_PARM_DESC(irq, "IRQ # for CS4231 driver.");
+module_param_array(mpu_irq, int, NULL, 0444);
+MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for CS4231 driver.");
+module_param_array(dma1, int, NULL, 0444);
+MODULE_PARM_DESC(dma1, "DMA1 # for CS4231 driver.");
+module_param_array(dma2, int, NULL, 0444);
+MODULE_PARM_DESC(dma2, "DMA2 # for CS4231 driver.");
+
+static snd_card_t *snd_cs4231_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
+
+
+static int __init snd_card_cs4231_probe(int dev)
+{
+	snd_card_t *card;
+	struct snd_card_cs4231 *acard;
+	snd_pcm_t *pcm = NULL;
+	cs4231_t *chip;
+	int err;
+
+	if (port[dev] == SNDRV_AUTO_PORT) {
+		snd_printk("specify port\n");
+		return -EINVAL;
+	}
+	if (irq[dev] == SNDRV_AUTO_IRQ) {
+		snd_printk("specify irq\n");
+		return -EINVAL;
+	}
+	if (dma1[dev] == SNDRV_AUTO_DMA) {
+		snd_printk("specify dma1\n");
+		return -EINVAL;
+	}
+	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
+	if (card == NULL)
+		return -ENOMEM;
+	acard = (struct snd_card_cs4231 *)card->private_data;
+	if ((err = snd_cs4231_create(card, port[dev], -1,
+				     irq[dev],
+				     dma1[dev],
+				     dma2[dev],
+				     CS4231_HW_DETECT,
+				     0, &chip)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+
+	if ((err = snd_cs4231_pcm(chip, 0, &pcm)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+
+	strcpy(card->driver, "CS4231");
+	strcpy(card->shortname, pcm->name);
+	sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
+		pcm->name, chip->port, irq[dev], dma1[dev]);
+	if (dma2[dev] >= 0)
+		sprintf(card->longname + strlen(card->longname), "&%d", dma2[dev]);
+
+	if ((err = snd_cs4231_mixer(chip)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+	if ((err = snd_cs4231_timer(chip, 0, NULL)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+
+	if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
+		if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
+			mpu_irq[dev] = -1;
+		if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
+					mpu_port[dev], 0,
+					mpu_irq[dev],
+					mpu_irq[dev] >= 0 ? SA_INTERRUPT : 0,
+					NULL) < 0)
+			printk(KERN_ERR "cs4231: MPU401 not detected\n");
+	}
+	if ((err = snd_card_register(card)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+	snd_cs4231_cards[dev] = card;
+	return 0;
+}
+
+static int __init alsa_card_cs4231_init(void)
+{
+	int dev, cards;
+
+	for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) {
+		if (snd_card_cs4231_probe(dev) >= 0)
+			cards++;
+	}
+	if (!cards) {
+#ifdef MODULE
+		printk(KERN_ERR "CS4231 soundcard not found or device busy\n");
+#endif
+		return -ENODEV;
+	}
+	return 0;
+}
+
+static void __exit alsa_card_cs4231_exit(void)
+{
+	int idx;
+
+	for (idx = 0; idx < SNDRV_CARDS; idx++)
+		snd_card_free(snd_cs4231_cards[idx]);
+}
+
+module_init(alsa_card_cs4231_init)
+module_exit(alsa_card_cs4231_exit)
diff --git a/sound/isa/cs423x/cs4231_lib.c b/sound/isa/cs423x/cs4231_lib.c
new file mode 100644
index 000000000000..3e7a2a33a5ca
--- /dev/null
+++ b/sound/isa/cs423x/cs4231_lib.c
@@ -0,0 +1,1964 @@
+/*
+ *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *  Routines for control of CS4231(A)/CS4232/InterWave & compatible chips
+ *
+ *  Bugs:
+ *     - sometimes record brokes playback with WSS portion of 
+ *       Yamaha OPL3-SA3 chip
+ *     - CS4231 (GUS MAX) - still trouble with occasional noises
+ *                        - broken initialization?
+ *
+ *   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/pm.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <sound/core.h>
+#include <sound/cs4231.h>
+#include <sound/pcm_params.h>
+
+#include <asm/io.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
+MODULE_DESCRIPTION("Routines for control of CS4231(A)/CS4232/InterWave & compatible chips");
+MODULE_LICENSE("GPL");
+
+#if 0
+#define SNDRV_DEBUG_MCE
+#endif
+
+/*
+ *  Some variables
+ */
+
+static unsigned char freq_bits[14] = {
+	/* 5510 */	0x00 | CS4231_XTAL2,
+	/* 6620 */	0x0E | CS4231_XTAL2,
+	/* 8000 */	0x00 | CS4231_XTAL1,
+	/* 9600 */	0x0E | CS4231_XTAL1,
+	/* 11025 */	0x02 | CS4231_XTAL2,
+	/* 16000 */	0x02 | CS4231_XTAL1,
+	/* 18900 */	0x04 | CS4231_XTAL2,
+	/* 22050 */	0x06 | CS4231_XTAL2,
+	/* 27042 */	0x04 | CS4231_XTAL1,
+	/* 32000 */	0x06 | CS4231_XTAL1,
+	/* 33075 */	0x0C | CS4231_XTAL2,
+	/* 37800 */	0x08 | CS4231_XTAL2,
+	/* 44100 */	0x0A | CS4231_XTAL2,
+	/* 48000 */	0x0C | CS4231_XTAL1
+};
+
+static unsigned int rates[14] = {
+	5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
+	27042, 32000, 33075, 37800, 44100, 48000
+};
+
+static snd_pcm_hw_constraint_list_t hw_constraints_rates = {
+	.count = 14,
+	.list = rates,
+	.mask = 0,
+};
+
+static int snd_cs4231_xrate(snd_pcm_runtime_t *runtime)
+{
+	return snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
+}
+
+static unsigned char snd_cs4231_original_image[32] =
+{
+	0x00,			/* 00/00 - lic */
+	0x00,			/* 01/01 - ric */
+	0x9f,			/* 02/02 - la1ic */
+	0x9f,			/* 03/03 - ra1ic */
+	0x9f,			/* 04/04 - la2ic */
+	0x9f,			/* 05/05 - ra2ic */
+	0xbf,			/* 06/06 - loc */
+	0xbf,			/* 07/07 - roc */
+	0x20,			/* 08/08 - pdfr */
+	CS4231_AUTOCALIB,	/* 09/09 - ic */
+	0x00,			/* 0a/10 - pc */
+	0x00,			/* 0b/11 - ti */
+	CS4231_MODE2,		/* 0c/12 - mi */
+	0xfc,			/* 0d/13 - lbc */
+	0x00,			/* 0e/14 - pbru */
+	0x00,			/* 0f/15 - pbrl */
+	0x80,			/* 10/16 - afei */
+	0x01,			/* 11/17 - afeii */
+	0x9f,			/* 12/18 - llic */
+	0x9f,			/* 13/19 - rlic */
+	0x00,			/* 14/20 - tlb */
+	0x00,			/* 15/21 - thb */
+	0x00,			/* 16/22 - la3mic/reserved */
+	0x00,			/* 17/23 - ra3mic/reserved */
+	0x00,			/* 18/24 - afs */
+	0x00,			/* 19/25 - lamoc/version */
+	0xcf,			/* 1a/26 - mioc */
+	0x00,			/* 1b/27 - ramoc/reserved */
+	0x20,			/* 1c/28 - cdfr */
+	0x00,			/* 1d/29 - res4 */
+	0x00,			/* 1e/30 - cbru */
+	0x00,			/* 1f/31 - cbrl */
+};
+
+/*
+ *  Basic I/O functions
+ */
+
+#if !defined(EBUS_SUPPORT) && !defined(SBUS_SUPPORT)
+#define __CS4231_INLINE__ inline
+#else
+#define __CS4231_INLINE__ /* nothing */
+#endif
+
+static __CS4231_INLINE__ void cs4231_outb(cs4231_t *chip, u8 offset, u8 val)
+{
+#ifdef EBUS_SUPPORT
+	if (chip->ebus->flag) {
+		writeb(val, chip->port + (offset << 2));
+	} else {
+#endif
+#ifdef SBUS_SUPPORT
+		sbus_writeb(val, chip->port + (offset << 2));
+#endif
+#ifdef EBUS_SUPPORT
+	}
+#endif
+#ifdef LEGACY_SUPPORT
+	outb(val, chip->port + offset);
+#endif
+}
+
+static __CS4231_INLINE__ u8 cs4231_inb(cs4231_t *chip, u8 offset)
+{
+#ifdef EBUS_SUPPORT
+	if (chip->ebus_flag) {
+		return readb(chip->port + (offset << 2));
+	} else {
+#endif
+#ifdef SBUS_SUPPORT
+		return sbus_readb(chip->port + (offset << 2));
+#endif
+#ifdef EBUS_SUPPORT
+	}
+#endif
+#ifdef LEGACY_SUPPORT
+	return inb(chip->port + offset);
+#endif
+}
+
+static void snd_cs4231_outm(cs4231_t *chip, unsigned char reg,
+			    unsigned char mask, unsigned char value)
+{
+	int timeout;
+	unsigned char tmp;
+
+	for (timeout = 250;
+	     timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
+	     timeout--)
+	     	udelay(100);
+#ifdef CONFIG_SND_DEBUG
+	if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
+		snd_printk("outm: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
+#endif
+	if (chip->calibrate_mute) {
+		chip->image[reg] &= mask;
+		chip->image[reg] |= value;
+	} else {
+		cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
+		mb();
+		tmp = (chip->image[reg] & mask) | value;
+		cs4231_outb(chip, CS4231P(REG), tmp);
+		chip->image[reg] = tmp;
+		mb();
+	}
+}
+
+static void snd_cs4231_dout(cs4231_t *chip, unsigned char reg, unsigned char value)
+{
+	int timeout;
+
+	for (timeout = 250;
+	     timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
+	     timeout--)
+	     	udelay(10);
+	cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
+	cs4231_outb(chip, CS4231P(REG), value);
+	mb();
+}
+
+void snd_cs4231_out(cs4231_t *chip, unsigned char reg, unsigned char value)
+{
+	int timeout;
+
+	for (timeout = 250;
+	     timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
+	     timeout--)
+	     	udelay(100);
+#ifdef CONFIG_SND_DEBUG
+	if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
+		snd_printk("out: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
+#endif
+	cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
+	cs4231_outb(chip, CS4231P(REG), value);
+	chip->image[reg] = value;
+	mb();
+#if 0
+	printk("codec out - reg 0x%x = 0x%x\n", chip->mce_bit | reg, value);
+#endif
+}
+
+unsigned char snd_cs4231_in(cs4231_t *chip, unsigned char reg)
+{
+	int timeout;
+
+	for (timeout = 250;
+	     timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
+	     timeout--)
+	     	udelay(100);
+#ifdef CONFIG_SND_DEBUG
+	if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
+		snd_printk("in: auto calibration time out - reg = 0x%x\n", reg);
+#endif
+	cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg);
+	mb();
+	return cs4231_inb(chip, CS4231P(REG));
+}
+
+void snd_cs4236_ext_out(cs4231_t *chip, unsigned char reg, unsigned char val)
+{
+	cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | 0x17);
+	cs4231_outb(chip, CS4231P(REG), reg | (chip->image[CS4236_EXT_REG] & 0x01));
+	cs4231_outb(chip, CS4231P(REG), val);
+	chip->eimage[CS4236_REG(reg)] = val;
+#if 0
+	printk("ext out : reg = 0x%x, val = 0x%x\n", reg, val);
+#endif
+}
+
+unsigned char snd_cs4236_ext_in(cs4231_t *chip, unsigned char reg)
+{
+	cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | 0x17);
+	cs4231_outb(chip, CS4231P(REG), reg | (chip->image[CS4236_EXT_REG] & 0x01));
+#if 1
+	return cs4231_inb(chip, CS4231P(REG));
+#else
+	{
+		unsigned char res;
+		res = cs4231_inb(chip, CS4231P(REG));
+		printk("ext in : reg = 0x%x, val = 0x%x\n", reg, res);
+		return res;
+	}
+#endif
+}
+
+#if 0
+
+static void snd_cs4231_debug(cs4231_t *chip)
+{
+	printk("CS4231 REGS:      INDEX = 0x%02x  ", cs4231_inb(chip, CS4231P(REGSEL)));
+	printk("                 STATUS = 0x%02x\n", cs4231_inb(chip, CS4231P(STATUS)));
+	printk("  0x00: left input      = 0x%02x  ", snd_cs4231_in(chip, 0x00));
+	printk("  0x10: alt 1 (CFIG 2)  = 0x%02x\n", snd_cs4231_in(chip, 0x10));
+	printk("  0x01: right input     = 0x%02x  ", snd_cs4231_in(chip, 0x01));
+	printk("  0x11: alt 2 (CFIG 3)  = 0x%02x\n", snd_cs4231_in(chip, 0x11));
+	printk("  0x02: GF1 left input  = 0x%02x  ", snd_cs4231_in(chip, 0x02));
+	printk("  0x12: left line in    = 0x%02x\n", snd_cs4231_in(chip, 0x12));
+	printk("  0x03: GF1 right input = 0x%02x  ", snd_cs4231_in(chip, 0x03));
+	printk("  0x13: right line in   = 0x%02x\n", snd_cs4231_in(chip, 0x13));
+	printk("  0x04: CD left input   = 0x%02x  ", snd_cs4231_in(chip, 0x04));
+	printk("  0x14: timer low       = 0x%02x\n", snd_cs4231_in(chip, 0x14));
+	printk("  0x05: CD right input  = 0x%02x  ", snd_cs4231_in(chip, 0x05));
+	printk("  0x15: timer high      = 0x%02x\n", snd_cs4231_in(chip, 0x15));
+	printk("  0x06: left output     = 0x%02x  ", snd_cs4231_in(chip, 0x06));
+	printk("  0x16: left MIC (PnP)  = 0x%02x\n", snd_cs4231_in(chip, 0x16));
+	printk("  0x07: right output    = 0x%02x  ", snd_cs4231_in(chip, 0x07));
+	printk("  0x17: right MIC (PnP) = 0x%02x\n", snd_cs4231_in(chip, 0x17));
+	printk("  0x08: playback format = 0x%02x  ", snd_cs4231_in(chip, 0x08));
+	printk("  0x18: IRQ status      = 0x%02x\n", snd_cs4231_in(chip, 0x18));
+	printk("  0x09: iface (CFIG 1)  = 0x%02x  ", snd_cs4231_in(chip, 0x09));
+	printk("  0x19: left line out   = 0x%02x\n", snd_cs4231_in(chip, 0x19));
+	printk("  0x0a: pin control     = 0x%02x  ", snd_cs4231_in(chip, 0x0a));
+	printk("  0x1a: mono control    = 0x%02x\n", snd_cs4231_in(chip, 0x1a));
+	printk("  0x0b: init & status   = 0x%02x  ", snd_cs4231_in(chip, 0x0b));
+	printk("  0x1b: right line out  = 0x%02x\n", snd_cs4231_in(chip, 0x1b));
+	printk("  0x0c: revision & mode = 0x%02x  ", snd_cs4231_in(chip, 0x0c));
+	printk("  0x1c: record format   = 0x%02x\n", snd_cs4231_in(chip, 0x1c));
+	printk("  0x0d: loopback        = 0x%02x  ", snd_cs4231_in(chip, 0x0d));
+	printk("  0x1d: var freq (PnP)  = 0x%02x\n", snd_cs4231_in(chip, 0x1d));
+	printk("  0x0e: ply upr count   = 0x%02x  ", snd_cs4231_in(chip, 0x0e));
+	printk("  0x1e: ply lwr count   = 0x%02x\n", snd_cs4231_in(chip, 0x1e));
+	printk("  0x0f: rec upr count   = 0x%02x  ", snd_cs4231_in(chip, 0x0f));
+	printk("  0x1f: rec lwr count   = 0x%02x\n", snd_cs4231_in(chip, 0x1f));
+}
+
+#endif
+
+/*
+ *  CS4231 detection / MCE routines
+ */
+
+static void snd_cs4231_busy_wait(cs4231_t *chip)
+{
+	int timeout;
+
+	/* huh.. looks like this sequence is proper for CS4231A chip (GUS MAX) */
+	for (timeout = 5; timeout > 0; timeout--)
+		cs4231_inb(chip, CS4231P(REGSEL));
+	/* end of cleanup sequence */
+	for (timeout = 250;
+	     timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT);
+	     timeout--)
+	     	udelay(10);
+}
+
+void snd_cs4231_mce_up(cs4231_t *chip)
+{
+	unsigned long flags;
+	int timeout;
+
+	for (timeout = 250; timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT); timeout--)
+		udelay(100);
+#ifdef CONFIG_SND_DEBUG
+	if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
+		snd_printk("mce_up - auto calibration time out (0)\n");
+#endif
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	chip->mce_bit |= CS4231_MCE;
+	timeout = cs4231_inb(chip, CS4231P(REGSEL));
+	if (timeout == 0x80)
+		snd_printk("mce_up [0x%lx]: serious init problem - codec still busy\n", chip->port);
+	if (!(timeout & CS4231_MCE))
+		cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+}
+
+void snd_cs4231_mce_down(cs4231_t *chip)
+{
+	unsigned long flags;
+	int timeout;
+
+	snd_cs4231_busy_wait(chip);
+#if 0
+	printk("(1) timeout = %i\n", timeout);
+#endif
+#ifdef CONFIG_SND_DEBUG
+	if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
+		snd_printk("mce_down [0x%lx] - auto calibration time out (0)\n", (long)CS4231P(REGSEL));
+#endif
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	chip->mce_bit &= ~CS4231_MCE;
+	timeout = cs4231_inb(chip, CS4231P(REGSEL));
+	cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	if (timeout == 0x80)
+		snd_printk("mce_down [0x%lx]: serious init problem - codec still busy\n", chip->port);
+	if ((timeout & CS4231_MCE) == 0 ||
+	    !(chip->hardware & (CS4231_HW_CS4231_MASK | CS4231_HW_CS4232_MASK))) {
+		return;
+	}
+	snd_cs4231_busy_wait(chip);
+
+	/* calibration process */
+
+	for (timeout = 500; timeout > 0 && (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) == 0; timeout--)
+		udelay(10);
+	if ((snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) == 0) {
+		snd_printd("cs4231_mce_down - auto calibration time out (1)\n");
+		return;
+	}
+#if 0
+	printk("(2) timeout = %i, jiffies = %li\n", timeout, jiffies);
+#endif
+	/* in 10 ms increments, check condition, up to 250 ms */
+	timeout = 25;
+	while (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) {
+		if (--timeout < 0) {
+			snd_printk("mce_down - auto calibration time out (2)\n");
+			return;
+		}
+		msleep(10);
+	}
+#if 0
+	printk("(3) jiffies = %li\n", jiffies);
+#endif
+	/* in 10 ms increments, check condition, up to 100 ms */
+	timeout = 10;
+	while (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) {
+		if (--timeout < 0) {
+			snd_printk(KERN_ERR "mce_down - auto calibration time out (3)\n");
+			return;
+		}
+		msleep(10);
+	}
+#if 0
+	printk("(4) jiffies = %li\n", jiffies);
+	snd_printk("mce_down - exit = 0x%x\n", cs4231_inb(chip, CS4231P(REGSEL)));
+#endif
+}
+
+static unsigned int snd_cs4231_get_count(unsigned char format, unsigned int size)
+{
+	switch (format & 0xe0) {
+	case CS4231_LINEAR_16:
+	case CS4231_LINEAR_16_BIG:
+		size >>= 1;
+		break;
+	case CS4231_ADPCM_16:
+		return size >> 2;
+	}
+	if (format & CS4231_STEREO)
+		size >>= 1;
+	return size;
+}
+
+static int snd_cs4231_trigger(snd_pcm_substream_t *substream,
+			      int cmd)
+{
+	cs4231_t *chip = snd_pcm_substream_chip(substream);
+	int result = 0;
+	unsigned int what;
+	struct list_head *pos;
+	snd_pcm_substream_t *s;
+	int do_start;
+
+#if 0
+	printk("codec trigger!!! - what = %i, enable = %i, status = 0x%x\n", what, enable, cs4231_inb(chip, CS4231P(STATUS)));
+#endif
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+		do_start = 1; break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+		do_start = 0; break;
+	default:
+		return -EINVAL;
+	}
+
+	what = 0;
+	snd_pcm_group_for_each(pos, substream) {
+		s = snd_pcm_group_substream_entry(pos);
+		if (s == chip->playback_substream) {
+			what |= CS4231_PLAYBACK_ENABLE;
+			snd_pcm_trigger_done(s, substream);
+		} else if (s == chip->capture_substream) {
+			what |= CS4231_RECORD_ENABLE;
+			snd_pcm_trigger_done(s, substream);
+		}
+	}
+	spin_lock(&chip->reg_lock);
+	if (do_start) {
+		chip->image[CS4231_IFACE_CTRL] |= what;
+		if (chip->trigger)
+			chip->trigger(chip, what, 1);
+	} else {
+		chip->image[CS4231_IFACE_CTRL] &= ~what;
+		if (chip->trigger)
+			chip->trigger(chip, what, 0);
+	}
+	snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
+	spin_unlock(&chip->reg_lock);
+#if 0
+	snd_cs4231_debug(chip);
+#endif
+	return result;
+}
+
+/*
+ *  CODEC I/O
+ */
+
+static unsigned char snd_cs4231_get_rate(unsigned int rate)
+{
+	int i;
+
+	for (i = 0; i < 14; i++)
+		if (rate == rates[i])
+			return freq_bits[i];
+	// snd_BUG();
+	return freq_bits[13];
+}
+
+static unsigned char snd_cs4231_get_format(cs4231_t *chip,
+				           int format,
+                                           int channels)
+{
+	unsigned char rformat;
+
+	rformat = CS4231_LINEAR_8;
+	switch (format) {
+	case SNDRV_PCM_FORMAT_MU_LAW:	rformat = CS4231_ULAW_8; break;
+	case SNDRV_PCM_FORMAT_A_LAW:	rformat = CS4231_ALAW_8; break;
+	case SNDRV_PCM_FORMAT_S16_LE:	rformat = CS4231_LINEAR_16; break;
+	case SNDRV_PCM_FORMAT_S16_BE:	rformat = CS4231_LINEAR_16_BIG; break;
+	case SNDRV_PCM_FORMAT_IMA_ADPCM:	rformat = CS4231_ADPCM_16; break;
+	}
+	if (channels > 1)
+		rformat |= CS4231_STEREO;
+#if 0
+	snd_printk("get_format: 0x%x (mode=0x%x)\n", format, mode);
+#endif
+	return rformat;
+}
+
+static void snd_cs4231_calibrate_mute(cs4231_t *chip, int mute)
+{
+	unsigned long flags;
+
+	mute = mute ? 1 : 0;
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	if (chip->calibrate_mute == mute) {
+		spin_unlock_irqrestore(&chip->reg_lock, flags);
+		return;
+	}
+	if (!mute) {
+		snd_cs4231_dout(chip, CS4231_LEFT_INPUT, chip->image[CS4231_LEFT_INPUT]);
+		snd_cs4231_dout(chip, CS4231_RIGHT_INPUT, chip->image[CS4231_RIGHT_INPUT]);
+		snd_cs4231_dout(chip, CS4231_LOOPBACK, chip->image[CS4231_LOOPBACK]);
+	}
+	snd_cs4231_dout(chip, CS4231_AUX1_LEFT_INPUT, mute ? 0x80 : chip->image[CS4231_AUX1_LEFT_INPUT]);
+	snd_cs4231_dout(chip, CS4231_AUX1_RIGHT_INPUT, mute ? 0x80 : chip->image[CS4231_AUX1_RIGHT_INPUT]);
+	snd_cs4231_dout(chip, CS4231_AUX2_LEFT_INPUT, mute ? 0x80 : chip->image[CS4231_AUX2_LEFT_INPUT]);
+	snd_cs4231_dout(chip, CS4231_AUX2_RIGHT_INPUT, mute ? 0x80 : chip->image[CS4231_AUX2_RIGHT_INPUT]);
+	snd_cs4231_dout(chip, CS4231_LEFT_OUTPUT, mute ? 0x80 : chip->image[CS4231_LEFT_OUTPUT]);
+	snd_cs4231_dout(chip, CS4231_RIGHT_OUTPUT, mute ? 0x80 : chip->image[CS4231_RIGHT_OUTPUT]);
+	snd_cs4231_dout(chip, CS4231_LEFT_LINE_IN, mute ? 0x80 : chip->image[CS4231_LEFT_LINE_IN]);
+	snd_cs4231_dout(chip, CS4231_RIGHT_LINE_IN, mute ? 0x80 : chip->image[CS4231_RIGHT_LINE_IN]);
+	snd_cs4231_dout(chip, CS4231_MONO_CTRL, mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]);
+	if (chip->hardware == CS4231_HW_INTERWAVE) {
+		snd_cs4231_dout(chip, CS4231_LEFT_MIC_INPUT, mute ? 0x80 : chip->image[CS4231_LEFT_MIC_INPUT]);
+		snd_cs4231_dout(chip, CS4231_RIGHT_MIC_INPUT, mute ? 0x80 : chip->image[CS4231_RIGHT_MIC_INPUT]);		
+		snd_cs4231_dout(chip, CS4231_LINE_LEFT_OUTPUT, mute ? 0x80 : chip->image[CS4231_LINE_LEFT_OUTPUT]);
+		snd_cs4231_dout(chip, CS4231_LINE_RIGHT_OUTPUT, mute ? 0x80 : chip->image[CS4231_LINE_RIGHT_OUTPUT]);
+	}
+	chip->calibrate_mute = mute;
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+}
+
+static void snd_cs4231_playback_format(cs4231_t *chip,
+				       snd_pcm_hw_params_t *params,
+				       unsigned char pdfr)
+{
+	unsigned long flags;
+	int full_calib = 1;
+
+	down(&chip->mce_mutex);
+	snd_cs4231_calibrate_mute(chip, 1);
+	if (chip->hardware == CS4231_HW_CS4231A ||
+	    (chip->hardware & CS4231_HW_CS4232_MASK)) {
+		spin_lock_irqsave(&chip->reg_lock, flags);
+		if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (pdfr & 0x0f)) {	/* rate is same? */
+			snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | 0x10);
+			snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT] = pdfr);
+			snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] &= ~0x10);
+			udelay(100); /* Fixes audible clicks at least on GUS MAX */
+			full_calib = 0;
+		}
+		spin_unlock_irqrestore(&chip->reg_lock, flags);
+	}
+	if (full_calib) {
+		snd_cs4231_mce_up(chip);
+		spin_lock_irqsave(&chip->reg_lock, flags);
+		if (chip->hardware != CS4231_HW_INTERWAVE && !chip->single_dma) {
+			snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
+					(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) ?
+					(pdfr & 0xf0) | (chip->image[CS4231_REC_FORMAT] & 0x0f) :
+				        pdfr);
+		} else {
+			snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT] = pdfr);
+		}
+		spin_unlock_irqrestore(&chip->reg_lock, flags);
+		snd_cs4231_mce_down(chip);
+	}
+	snd_cs4231_calibrate_mute(chip, 0);
+	up(&chip->mce_mutex);
+}
+
+static void snd_cs4231_capture_format(cs4231_t *chip,
+				      snd_pcm_hw_params_t *params,
+                                      unsigned char cdfr)
+{
+	unsigned long flags;
+	int full_calib = 1;
+
+	down(&chip->mce_mutex);
+	snd_cs4231_calibrate_mute(chip, 1);
+	if (chip->hardware == CS4231_HW_CS4231A ||
+	    (chip->hardware & CS4231_HW_CS4232_MASK)) {
+		spin_lock_irqsave(&chip->reg_lock, flags);
+		if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (cdfr & 0x0f) ||	/* rate is same? */
+		    (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
+			snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | 0x20);
+			snd_cs4231_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT] = cdfr);
+			snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] &= ~0x20);
+			full_calib = 0;
+		}
+		spin_unlock_irqrestore(&chip->reg_lock, flags);
+	}
+	if (full_calib) {
+		snd_cs4231_mce_up(chip);
+		spin_lock_irqsave(&chip->reg_lock, flags);
+		if (chip->hardware != CS4231_HW_INTERWAVE) {
+			if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
+				snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
+					       ((chip->single_dma ? cdfr : chip->image[CS4231_PLAYBK_FORMAT]) & 0xf0) |
+					       (cdfr & 0x0f));
+				spin_unlock_irqrestore(&chip->reg_lock, flags);
+				snd_cs4231_mce_down(chip);
+				snd_cs4231_mce_up(chip);
+				spin_lock_irqsave(&chip->reg_lock, flags);
+			}
+		}
+		snd_cs4231_out(chip, CS4231_REC_FORMAT, cdfr);
+		spin_unlock_irqrestore(&chip->reg_lock, flags);
+		snd_cs4231_mce_down(chip);
+	}
+	snd_cs4231_calibrate_mute(chip, 0);
+	up(&chip->mce_mutex);
+}
+
+/*
+ *  Timer interface
+ */
+
+static unsigned long snd_cs4231_timer_resolution(snd_timer_t * timer)
+{
+	cs4231_t *chip = snd_timer_chip(timer);
+	if (chip->hardware & CS4231_HW_CS4236B_MASK)
+		return 14467;
+	else
+		return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920;
+}
+
+static int snd_cs4231_timer_start(snd_timer_t * timer)
+{
+	unsigned long flags;
+	unsigned int ticks;
+	cs4231_t *chip = snd_timer_chip(timer);
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	ticks = timer->sticks;
+	if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 ||
+	    (unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] ||
+	    (unsigned char)ticks != chip->image[CS4231_TIMER_LOW]) {
+		snd_cs4231_out(chip, CS4231_TIMER_HIGH, chip->image[CS4231_TIMER_HIGH] = (unsigned char) (ticks >> 8));
+		snd_cs4231_out(chip, CS4231_TIMER_LOW, chip->image[CS4231_TIMER_LOW] = (unsigned char) ticks);
+		snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | CS4231_TIMER_ENABLE);
+	}
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return 0;
+}
+
+static int snd_cs4231_timer_stop(snd_timer_t * timer)
+{
+	unsigned long flags;
+	cs4231_t *chip = snd_timer_chip(timer);
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return 0;
+}
+
+static void snd_cs4231_init(cs4231_t *chip)
+{
+	unsigned long flags;
+
+	snd_cs4231_mce_down(chip);
+
+#ifdef SNDRV_DEBUG_MCE
+	snd_printk("init: (1)\n");
+#endif
+	snd_cs4231_mce_up(chip);
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
+			     CS4231_RECORD_ENABLE | CS4231_RECORD_PIO |
+			     CS4231_CALIB_MODE);
+	chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB;
+	snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	snd_cs4231_mce_down(chip);
+
+#ifdef SNDRV_DEBUG_MCE
+	snd_printk("init: (2)\n");
+#endif
+
+	snd_cs4231_mce_up(chip);
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1]);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	snd_cs4231_mce_down(chip);
+
+#ifdef SNDRV_DEBUG_MCE
+	snd_printk("init: (3) - afei = 0x%x\n", chip->image[CS4231_ALT_FEATURE_1]);
+#endif
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	snd_cs4231_out(chip, CS4231_ALT_FEATURE_2, chip->image[CS4231_ALT_FEATURE_2]);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+
+	snd_cs4231_mce_up(chip);
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT]);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	snd_cs4231_mce_down(chip);
+
+#ifdef SNDRV_DEBUG_MCE
+	snd_printk("init: (4)\n");
+#endif
+
+	snd_cs4231_mce_up(chip);
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	snd_cs4231_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT]);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	snd_cs4231_mce_down(chip);
+
+#ifdef SNDRV_DEBUG_MCE
+	snd_printk("init: (5)\n");
+#endif
+}
+
+static int snd_cs4231_open(cs4231_t *chip, unsigned int mode)
+{
+	unsigned long flags;
+
+	down(&chip->open_mutex);
+	if ((chip->mode & mode) ||
+	    ((chip->mode & CS4231_MODE_OPEN) && chip->single_dma)) {
+		up(&chip->open_mutex);
+		return -EAGAIN;
+	}
+	if (chip->mode & CS4231_MODE_OPEN) {
+		chip->mode |= mode;
+		up(&chip->open_mutex);
+		return 0;
+	}
+	/* ok. now enable and ack CODEC IRQ */
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
+		       CS4231_RECORD_IRQ |
+		       CS4231_TIMER_IRQ);
+	snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
+	cs4231_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
+	cs4231_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
+	chip->image[CS4231_PIN_CTRL] |= CS4231_IRQ_ENABLE;
+	snd_cs4231_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]);
+	snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
+		       CS4231_RECORD_IRQ |
+		       CS4231_TIMER_IRQ);
+	snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+
+	chip->mode = mode;
+	up(&chip->open_mutex);
+	return 0;
+}
+
+static void snd_cs4231_close(cs4231_t *chip, unsigned int mode)
+{
+	unsigned long flags;
+
+	down(&chip->open_mutex);
+	chip->mode &= ~mode;
+	if (chip->mode & CS4231_MODE_OPEN) {
+		up(&chip->open_mutex);
+		return;
+	}
+	snd_cs4231_calibrate_mute(chip, 1);
+
+	/* disable IRQ */
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
+	cs4231_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
+	cs4231_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
+	chip->image[CS4231_PIN_CTRL] &= ~CS4231_IRQ_ENABLE;
+	snd_cs4231_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]);
+
+	/* now disable record & playback */
+
+	if (chip->image[CS4231_IFACE_CTRL] & (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
+					       CS4231_RECORD_ENABLE | CS4231_RECORD_PIO)) {
+		spin_unlock_irqrestore(&chip->reg_lock, flags);
+		snd_cs4231_mce_up(chip);
+		spin_lock_irqsave(&chip->reg_lock, flags);
+		chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
+						     CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
+		snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
+		spin_unlock_irqrestore(&chip->reg_lock, flags);
+		snd_cs4231_mce_down(chip);
+		spin_lock_irqsave(&chip->reg_lock, flags);
+	}
+
+	/* clear IRQ again */
+	snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
+	cs4231_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
+	cs4231_outb(chip, CS4231P(STATUS), 0);	/* clear IRQ */
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+
+	snd_cs4231_calibrate_mute(chip, 0);
+
+	chip->mode = 0;
+	up(&chip->open_mutex);
+}
+
+/*
+ *  timer open/close
+ */
+
+static int snd_cs4231_timer_open(snd_timer_t * timer)
+{
+	cs4231_t *chip = snd_timer_chip(timer);
+	snd_cs4231_open(chip, CS4231_MODE_TIMER);
+	return 0;
+}
+
+static int snd_cs4231_timer_close(snd_timer_t * timer)
+{
+	cs4231_t *chip = snd_timer_chip(timer);
+	snd_cs4231_close(chip, CS4231_MODE_TIMER);
+	return 0;
+}
+
+static struct _snd_timer_hardware snd_cs4231_timer_table =
+{
+	.flags =	SNDRV_TIMER_HW_AUTO,
+	.resolution =	9945,
+	.ticks =	65535,
+	.open =		snd_cs4231_timer_open,
+	.close =	snd_cs4231_timer_close,
+	.c_resolution = snd_cs4231_timer_resolution,
+	.start =	snd_cs4231_timer_start,
+	.stop =		snd_cs4231_timer_stop,
+};
+
+/*
+ *  ok.. exported functions..
+ */
+
+static int snd_cs4231_playback_hw_params(snd_pcm_substream_t * substream,
+					 snd_pcm_hw_params_t * hw_params)
+{
+	cs4231_t *chip = snd_pcm_substream_chip(substream);
+	unsigned char new_pdfr;
+	int err;
+
+	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
+		return err;
+	new_pdfr = snd_cs4231_get_format(chip, params_format(hw_params), params_channels(hw_params)) |
+		   snd_cs4231_get_rate(params_rate(hw_params));
+	chip->set_playback_format(chip, hw_params, new_pdfr);
+	return 0;
+}
+
+static int snd_cs4231_playback_hw_free(snd_pcm_substream_t * substream)
+{
+	return snd_pcm_lib_free_pages(substream);
+}
+
+#ifdef LEGACY_SUPPORT
+static int snd_cs4231_playback_prepare(snd_pcm_substream_t * substream)
+{
+	cs4231_t *chip = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	unsigned long flags;
+	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
+	unsigned int count = snd_pcm_lib_period_bytes(substream);
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	chip->p_dma_size = size;
+	chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO);
+	snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
+	count = snd_cs4231_get_count(chip->image[CS4231_PLAYBK_FORMAT], count) - 1;
+	snd_cs4231_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count);
+	snd_cs4231_out(chip, CS4231_PLY_UPR_CNT, (unsigned char) (count >> 8));
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+#if 0
+	snd_cs4231_debug(chip);
+#endif
+	return 0;
+}
+#endif /* LEGACY_SUPPORT */
+
+static int snd_cs4231_capture_hw_params(snd_pcm_substream_t * substream,
+					snd_pcm_hw_params_t * hw_params)
+{
+	cs4231_t *chip = snd_pcm_substream_chip(substream);
+	unsigned char new_cdfr;
+	int err;
+
+	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
+		return err;
+	new_cdfr = snd_cs4231_get_format(chip, params_format(hw_params), params_channels(hw_params)) |
+		   snd_cs4231_get_rate(params_rate(hw_params));
+	chip->set_capture_format(chip, hw_params, new_cdfr);
+	return 0;
+}
+
+static int snd_cs4231_capture_hw_free(snd_pcm_substream_t * substream)
+{
+	return snd_pcm_lib_free_pages(substream);
+}
+
+#ifdef LEGACY_SUPPORT
+static int snd_cs4231_capture_prepare(snd_pcm_substream_t * substream)
+{
+	cs4231_t *chip = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	unsigned long flags;
+	unsigned int size = snd_pcm_lib_buffer_bytes(substream);
+	unsigned int count = snd_pcm_lib_period_bytes(substream);
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	chip->c_dma_size = size;
+	chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
+	snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
+	count = snd_cs4231_get_count(chip->image[CS4231_REC_FORMAT], count) - 1;
+	if (chip->single_dma && chip->hardware != CS4231_HW_INTERWAVE) {
+		snd_cs4231_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count);
+		snd_cs4231_out(chip, CS4231_PLY_UPR_CNT, (unsigned char) (count >> 8));
+	} else {
+		snd_cs4231_out(chip, CS4231_REC_LWR_CNT, (unsigned char) count);
+		snd_cs4231_out(chip, CS4231_REC_UPR_CNT, (unsigned char) (count >> 8));
+	}
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return 0;
+}
+#endif
+
+static void snd_cs4231_overrange(cs4231_t *chip)
+{
+	unsigned long flags;
+	unsigned char res;
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	res = snd_cs4231_in(chip, CS4231_TEST_INIT);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	if (res & (0x08 | 0x02))	/* detect overrange only above 0dB; may be user selectable? */
+		chip->capture_substream->runtime->overrange++;
+}
+
+irqreturn_t snd_cs4231_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	cs4231_t *chip = dev_id;
+	unsigned char status;
+
+	status = snd_cs4231_in(chip, CS4231_IRQ_STATUS);
+	if (status & CS4231_TIMER_IRQ) {
+		if (chip->timer)
+			snd_timer_interrupt(chip->timer, chip->timer->sticks);
+	}		
+	if (chip->single_dma && chip->hardware != CS4231_HW_INTERWAVE) {
+		if (status & CS4231_PLAYBACK_IRQ) {
+			if (chip->mode & CS4231_MODE_PLAY) {
+				if (chip->playback_substream)
+					snd_pcm_period_elapsed(chip->playback_substream);
+			}
+			if (chip->mode & CS4231_MODE_RECORD) {
+				if (chip->capture_substream) {
+					snd_cs4231_overrange(chip);
+					snd_pcm_period_elapsed(chip->capture_substream);
+				}
+			}
+		}
+	} else {
+		if (status & CS4231_PLAYBACK_IRQ) {
+			if (chip->playback_substream)
+				snd_pcm_period_elapsed(chip->playback_substream);
+		}
+		if (status & CS4231_RECORD_IRQ) {
+			if (chip->capture_substream) {
+				snd_cs4231_overrange(chip);
+				snd_pcm_period_elapsed(chip->capture_substream);
+			}
+		}
+	}
+
+	spin_lock(&chip->reg_lock);
+	snd_cs4231_outm(chip, CS4231_IRQ_STATUS, ~CS4231_ALL_IRQS | ~status, 0);
+	spin_unlock(&chip->reg_lock);
+	return IRQ_HANDLED;
+}
+
+#ifdef LEGACY_SUPPORT
+static snd_pcm_uframes_t snd_cs4231_playback_pointer(snd_pcm_substream_t * substream)
+{
+	cs4231_t *chip = snd_pcm_substream_chip(substream);
+	size_t ptr;
+
+	if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE))
+		return 0;
+	ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size);
+	return bytes_to_frames(substream->runtime, ptr);
+}
+
+static snd_pcm_uframes_t snd_cs4231_capture_pointer(snd_pcm_substream_t * substream)
+{
+	cs4231_t *chip = snd_pcm_substream_chip(substream);
+	size_t ptr;
+	
+	if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE))
+		return 0;
+	ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size);
+	return bytes_to_frames(substream->runtime, ptr);
+}
+#endif /* LEGACY_SUPPORT */
+
+/*
+
+ */
+
+static int snd_cs4231_probe(cs4231_t *chip)
+{
+	unsigned long flags;
+	int i, id, rev;
+	unsigned char *ptr;
+	unsigned int hw;
+
+#if 0
+	snd_cs4231_debug(chip);
+#endif
+	id = 0;
+	for (i = 0; i < 50; i++) {
+		mb();
+		if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
+			udelay(2000);
+		else {
+			spin_lock_irqsave(&chip->reg_lock, flags);
+			snd_cs4231_out(chip, CS4231_MISC_INFO, CS4231_MODE2);
+			id = snd_cs4231_in(chip, CS4231_MISC_INFO) & 0x0f;
+			spin_unlock_irqrestore(&chip->reg_lock, flags);
+			if (id == 0x0a)
+				break;	/* this is valid value */
+		}
+	}
+	snd_printdd("cs4231: port = 0x%lx, id = 0x%x\n", chip->port, id);
+	if (id != 0x0a)
+		return -ENODEV;	/* no valid device found */
+
+	if (((hw = chip->hardware) & CS4231_HW_TYPE_MASK) == CS4231_HW_DETECT) {
+		rev = snd_cs4231_in(chip, CS4231_VERSION) & 0xe7;
+		snd_printdd("CS4231: VERSION (I25) = 0x%x\n", rev);
+		if (rev == 0x80) {
+			unsigned char tmp = snd_cs4231_in(chip, 23);
+			snd_cs4231_out(chip, 23, ~tmp);
+			if (snd_cs4231_in(chip, 23) != tmp)
+				chip->hardware = CS4231_HW_AD1845;
+			else
+				chip->hardware = CS4231_HW_CS4231;
+		} else if (rev == 0xa0) {
+			chip->hardware = CS4231_HW_CS4231A;
+		} else if (rev == 0xa2) {
+			chip->hardware = CS4231_HW_CS4232;
+		} else if (rev == 0xb2) {
+			chip->hardware = CS4231_HW_CS4232A;
+		} else if (rev == 0x83) {
+			chip->hardware = CS4231_HW_CS4236;
+		} else if (rev == 0x03) {
+			chip->hardware = CS4231_HW_CS4236B;
+		} else {
+			snd_printk("unknown CS chip with version 0x%x\n", rev);
+			return -ENODEV;		/* unknown CS4231 chip? */
+		}
+	}
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	cs4231_inb(chip, CS4231P(STATUS));	/* clear any pendings IRQ */
+	cs4231_outb(chip, CS4231P(STATUS), 0);
+	mb();
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+
+	chip->image[CS4231_MISC_INFO] = CS4231_MODE2;
+	switch (chip->hardware) {
+	case CS4231_HW_INTERWAVE:
+		chip->image[CS4231_MISC_INFO] = CS4231_IW_MODE3;
+		break;
+	case CS4231_HW_CS4235:
+	case CS4231_HW_CS4236B:
+	case CS4231_HW_CS4237B:
+	case CS4231_HW_CS4238B:
+	case CS4231_HW_CS4239:
+		if (hw == CS4231_HW_DETECT3)
+			chip->image[CS4231_MISC_INFO] = CS4231_4236_MODE3;
+		else
+			chip->hardware = CS4231_HW_CS4236;
+		break;
+	}
+
+	chip->image[CS4231_IFACE_CTRL] =
+	    (chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA) |
+	    (chip->single_dma ? CS4231_SINGLE_DMA : 0);
+	chip->image[CS4231_ALT_FEATURE_1] = 0x80;
+	chip->image[CS4231_ALT_FEATURE_2] = chip->hardware == CS4231_HW_INTERWAVE ? 0xc2 : 0x01;
+	ptr = (unsigned char *) &chip->image;
+	snd_cs4231_mce_down(chip);
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	for (i = 0; i < 32; i++)	/* ok.. fill all CS4231 registers */
+		snd_cs4231_out(chip, i, *ptr++);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	snd_cs4231_mce_up(chip);
+	snd_cs4231_mce_down(chip);
+
+	mdelay(2);
+
+	/* ok.. try check hardware version for CS4236+ chips */
+	if ((hw & CS4231_HW_TYPE_MASK) == CS4231_HW_DETECT) {
+		if (chip->hardware == CS4231_HW_CS4236B) {
+			rev = snd_cs4236_ext_in(chip, CS4236_VERSION);
+			snd_cs4236_ext_out(chip, CS4236_VERSION, 0xff);
+			id = snd_cs4236_ext_in(chip, CS4236_VERSION);
+			snd_cs4236_ext_out(chip, CS4236_VERSION, rev);
+			snd_printdd("CS4231: ext version; rev = 0x%x, id = 0x%x\n", rev, id);
+			if ((id & 0x1f) == 0x1d) {	/* CS4235 */
+				chip->hardware = CS4231_HW_CS4235;
+				switch (id >> 5) {
+				case 4:
+				case 5:
+				case 6:
+					break;
+				default:
+					snd_printk("unknown CS4235 chip (enhanced version = 0x%x)\n", id);
+				}
+			} else if ((id & 0x1f) == 0x0b) {	/* CS4236/B */
+				switch (id >> 5) {
+				case 4:
+				case 5:
+				case 6:
+				case 7:
+					chip->hardware = CS4231_HW_CS4236B;
+					break;
+				default:
+					snd_printk("unknown CS4236 chip (enhanced version = 0x%x)\n", id);
+				}
+			} else if ((id & 0x1f) == 0x08) {	/* CS4237B */
+				chip->hardware = CS4231_HW_CS4237B;
+				switch (id >> 5) {
+				case 4:
+				case 5:
+				case 6:
+				case 7:
+					break;
+				default:
+					snd_printk("unknown CS4237B chip (enhanced version = 0x%x)\n", id);
+				}
+			} else if ((id & 0x1f) == 0x09) {	/* CS4238B */
+				chip->hardware = CS4231_HW_CS4238B;
+				switch (id >> 5) {
+				case 5:
+				case 6:
+				case 7:
+					break;
+				default:
+					snd_printk("unknown CS4238B chip (enhanced version = 0x%x)\n", id);
+				}
+			} else if ((id & 0x1f) == 0x1e) {	/* CS4239 */
+				chip->hardware = CS4231_HW_CS4239;
+				switch (id >> 5) {
+				case 4:
+				case 5:
+				case 6:
+					break;
+				default:
+					snd_printk("unknown CS4239 chip (enhanced version = 0x%x)\n", id);
+				}
+			} else {
+				snd_printk("unknown CS4236/CS423xB chip (enhanced version = 0x%x)\n", id);
+			}
+		}
+	}
+	return 0;		/* all things are ok.. */
+}
+
+/*
+
+ */
+
+static snd_pcm_hardware_t snd_cs4231_playback =
+{
+	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+				 SNDRV_PCM_INFO_MMAP_VALID |
+				 SNDRV_PCM_INFO_RESUME |
+				 SNDRV_PCM_INFO_SYNC_START),
+	.formats =		(SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_IMA_ADPCM |
+				 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE),
+	.rates =		SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
+	.rate_min =		5510,
+	.rate_max =		48000,
+	.channels_min =		1,
+	.channels_max =		2,
+	.buffer_bytes_max =	(128*1024),
+	.period_bytes_min =	64,
+	.period_bytes_max =	(128*1024),
+	.periods_min =		1,
+	.periods_max =		1024,
+	.fifo_size =		0,
+};
+
+static snd_pcm_hardware_t snd_cs4231_capture =
+{
+	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+				 SNDRV_PCM_INFO_MMAP_VALID |
+				 SNDRV_PCM_INFO_RESUME |
+				 SNDRV_PCM_INFO_SYNC_START),
+	.formats =		(SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_IMA_ADPCM |
+				 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE),
+	.rates =		SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
+	.rate_min =		5510,
+	.rate_max =		48000,
+	.channels_min =		1,
+	.channels_max =		2,
+	.buffer_bytes_max =	(128*1024),
+	.period_bytes_min =	64,
+	.period_bytes_max =	(128*1024),
+	.periods_min =		1,
+	.periods_max =		1024,
+	.fifo_size =		0,
+};
+
+/*
+
+ */
+
+static int snd_cs4231_playback_open(snd_pcm_substream_t * substream)
+{
+	cs4231_t *chip = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	int err;
+
+	runtime->hw = snd_cs4231_playback;
+
+	/* hardware bug in InterWave chipset */
+	if (chip->hardware == CS4231_HW_INTERWAVE && chip->dma1 > 3)
+	    	runtime->hw.formats &= ~SNDRV_PCM_FMTBIT_MU_LAW;
+	
+	/* hardware limitation of cheap chips */
+	if (chip->hardware == CS4231_HW_CS4235 ||
+	    chip->hardware == CS4231_HW_CS4239)
+		runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE;
+
+#ifdef LEGACY_SUPPORT
+	snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);
+	snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);
+
+	if (chip->claim_dma) {
+		if ((err = chip->claim_dma(chip, chip->dma_private_data, chip->dma1)) < 0)
+			return err;
+	}
+#endif
+
+	if ((err = snd_cs4231_open(chip, CS4231_MODE_PLAY)) < 0) {
+#ifdef LEGACY_SUPPORT
+		if (chip->release_dma)
+			chip->release_dma(chip, chip->dma_private_data, chip->dma1);
+#endif
+		snd_free_pages(runtime->dma_area, runtime->dma_bytes);
+		return err;
+	}
+	chip->playback_substream = substream;
+#if defined(SBUS_SUPPORT) || defined(EBUS_SUPPORT)
+	chip->p_periods_sent = 0;
+#endif
+	snd_pcm_set_sync(substream);
+	chip->rate_constraint(runtime);
+	return 0;
+}
+
+static int snd_cs4231_capture_open(snd_pcm_substream_t * substream)
+{
+	cs4231_t *chip = snd_pcm_substream_chip(substream);
+	snd_pcm_runtime_t *runtime = substream->runtime;
+	int err;
+
+	runtime->hw = snd_cs4231_capture;
+
+	/* hardware limitation of cheap chips */
+	if (chip->hardware == CS4231_HW_CS4235 ||
+	    chip->hardware == CS4231_HW_CS4239)
+		runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE;
+
+#ifdef LEGACY_SUPPORT
+	snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);
+	snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);
+
+	if (chip->claim_dma) {
+		if ((err = chip->claim_dma(chip, chip->dma_private_data, chip->dma2)) < 0)
+			return err;
+	}
+#endif
+
+	if ((err = snd_cs4231_open(chip, CS4231_MODE_RECORD)) < 0) {
+#ifdef LEGACY_SUPPORT
+		if (chip->release_dma)
+			chip->release_dma(chip, chip->dma_private_data, chip->dma2);
+#endif
+		snd_free_pages(runtime->dma_area, runtime->dma_bytes);
+		return err;
+	}
+	chip->capture_substream = substream;
+#if defined(SBUS_SUPPORT) || defined(EBUS_SUPPORT)
+	chip->c_periods_sent = 0;
+#endif
+	snd_pcm_set_sync(substream);
+	chip->rate_constraint(runtime);
+	return 0;
+}
+
+static int snd_cs4231_playback_close(snd_pcm_substream_t * substream)
+{
+	cs4231_t *chip = snd_pcm_substream_chip(substream);
+
+	chip->playback_substream = NULL;
+	snd_cs4231_close(chip, CS4231_MODE_PLAY);
+	return 0;
+}
+
+static int snd_cs4231_capture_close(snd_pcm_substream_t * substream)
+{
+	cs4231_t *chip = snd_pcm_substream_chip(substream);
+
+	chip->capture_substream = NULL;
+	snd_cs4231_close(chip, CS4231_MODE_RECORD);
+	return 0;
+}
+
+#ifdef CONFIG_PM
+
+/* lowlevel suspend callback for CS4231 */
+static void snd_cs4231_suspend(cs4231_t *chip)
+{
+	int reg;
+	unsigned long flags;
+	
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	for (reg = 0; reg < 32; reg++)
+		chip->image[reg] = snd_cs4231_in(chip, reg);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+}
+
+/* lowlevel resume callback for CS4231 */
+static void snd_cs4231_resume(cs4231_t *chip)
+{
+	int reg;
+	unsigned long flags;
+	int timeout;
+	
+	snd_cs4231_mce_up(chip);
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	for (reg = 0; reg < 32; reg++) {
+		switch (reg) {
+		case CS4231_VERSION:
+			break;
+		default:
+			snd_cs4231_out(chip, reg, chip->image[reg]);
+			break;
+		}
+	}
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+#if 0
+	snd_cs4231_mce_down(chip);
+#else
+	/* The following is a workaround to avoid freeze after resume on TP600E.
+	   This is the first half of copy of snd_cs4231_mce_down(), but doesn't
+	   include rescheduling.  -- iwai
+	   */
+	snd_cs4231_busy_wait(chip);
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	chip->mce_bit &= ~CS4231_MCE;
+	timeout = cs4231_inb(chip, CS4231P(REGSEL));
+	cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f));
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	if (timeout == 0x80)
+		snd_printk("down [0x%lx]: serious init problem - codec still busy\n", chip->port);
+	if ((timeout & CS4231_MCE) == 0 ||
+	    !(chip->hardware & (CS4231_HW_CS4231_MASK | CS4231_HW_CS4232_MASK))) {
+		return;
+	}
+	snd_cs4231_busy_wait(chip);
+#endif
+}
+
+static int snd_cs4231_pm_suspend(snd_card_t *card, pm_message_t state)
+{
+	cs4231_t *chip = card->pm_private_data;
+	if (chip->suspend)
+		chip->suspend(chip);
+	return 0;
+}
+
+static int snd_cs4231_pm_resume(snd_card_t *card)
+{
+	cs4231_t *chip = card->pm_private_data;
+	if (chip->resume)
+		chip->resume(chip);
+	return 0;
+}
+#endif /* CONFIG_PM */
+
+#ifdef LEGACY_SUPPORT
+
+static int snd_cs4231_free(cs4231_t *chip)
+{
+	if (chip->res_port) {
+		release_resource(chip->res_port);
+		kfree_nocheck(chip->res_port);
+	}
+	if (chip->res_cport) {
+		release_resource(chip->res_cport);
+		kfree_nocheck(chip->res_cport);
+	}
+	if (chip->irq >= 0) {
+		disable_irq(chip->irq);
+		if (!(chip->hwshare & CS4231_HWSHARE_IRQ))
+			free_irq(chip->irq, (void *) chip);
+	}
+	if (!(chip->hwshare & CS4231_HWSHARE_DMA1) && chip->dma1 >= 0) {
+		snd_dma_disable(chip->dma1);
+		free_dma(chip->dma1);
+	}
+	if (!(chip->hwshare & CS4231_HWSHARE_DMA2) && chip->dma2 >= 0 && chip->dma2 != chip->dma1) {
+		snd_dma_disable(chip->dma2);
+		free_dma(chip->dma2);
+	}
+	if (chip->timer)
+		snd_device_free(chip->card, chip->timer);
+	kfree(chip);
+	return 0;
+}
+
+static int snd_cs4231_dev_free(snd_device_t *device)
+{
+	cs4231_t *chip = device->device_data;
+	return snd_cs4231_free(chip);	
+}
+
+#endif /* LEGACY_SUPPORT */
+
+const char *snd_cs4231_chip_id(cs4231_t *chip)
+{
+	switch (chip->hardware) {
+	case CS4231_HW_CS4231:	return "CS4231";
+	case CS4231_HW_CS4231A: return "CS4231A";
+	case CS4231_HW_CS4232:	return "CS4232";
+	case CS4231_HW_CS4232A:	return "CS4232A";
+	case CS4231_HW_CS4235:	return "CS4235";
+	case CS4231_HW_CS4236:  return "CS4236";
+	case CS4231_HW_CS4236B: return "CS4236B";
+	case CS4231_HW_CS4237B: return "CS4237B";
+	case CS4231_HW_CS4238B: return "CS4238B";
+	case CS4231_HW_CS4239:	return "CS4239";
+	case CS4231_HW_INTERWAVE: return "AMD InterWave";
+	case CS4231_HW_OPL3SA2: return chip->card->shortname;
+	case CS4231_HW_AD1845: return "AD1845";
+	default: return "???";
+	}
+}
+
+static int snd_cs4231_new(snd_card_t * card,
+			  unsigned short hardware,
+			  unsigned short hwshare,
+			  cs4231_t ** rchip)
+{
+	cs4231_t *chip;
+
+	*rchip = NULL;
+	chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
+	if (chip == NULL)
+		return -ENOMEM;
+	chip->hardware = hardware;
+	chip->hwshare = hwshare;
+
+	spin_lock_init(&chip->reg_lock);
+	init_MUTEX(&chip->mce_mutex);
+	init_MUTEX(&chip->open_mutex);
+	chip->card = card;
+	chip->rate_constraint = snd_cs4231_xrate;
+	chip->set_playback_format = snd_cs4231_playback_format;
+	chip->set_capture_format = snd_cs4231_capture_format;
+        memcpy(&chip->image, &snd_cs4231_original_image, sizeof(snd_cs4231_original_image));
+        
+        *rchip = chip;
+        return 0;
+}
+
+#ifdef LEGACY_SUPPORT
+
+int snd_cs4231_create(snd_card_t * card,
+	              unsigned long port,
+	              unsigned long cport,
+		      int irq, int dma1, int dma2,
+		      unsigned short hardware,
+		      unsigned short hwshare,
+		      cs4231_t ** rchip)
+{
+	static snd_device_ops_t ops = {
+		.dev_free =	snd_cs4231_dev_free,
+	};
+	cs4231_t *chip;
+	int err;
+
+	err = snd_cs4231_new(card, hardware, hwshare, &chip);
+	if (err < 0)
+		return err;
+	
+	chip->irq = -1;
+	chip->dma1 = -1;
+	chip->dma2 = -1;
+
+	if ((chip->res_port = request_region(port, 4, "CS4231")) == NULL) {
+		snd_printk(KERN_ERR "cs4231: can't grab port 0x%lx\n", port);
+		snd_cs4231_free(chip);
+		return -EBUSY;
+	}
+	chip->port = port;
+	if ((long)cport >= 0 && (chip->res_cport = request_region(cport, 8, "CS4232 Control")) == NULL) {
+		snd_printk(KERN_ERR "cs4231: can't grab control port 0x%lx\n", cport);
+		snd_cs4231_free(chip);
+		return -ENODEV;
+	}
+	chip->cport = cport;
+	if (!(hwshare & CS4231_HWSHARE_IRQ) && request_irq(irq, snd_cs4231_interrupt, SA_INTERRUPT, "CS4231", (void *) chip)) {
+		snd_printk(KERN_ERR "cs4231: can't grab IRQ %d\n", irq);
+		snd_cs4231_free(chip);
+		return -EBUSY;
+	}
+	chip->irq = irq;
+	if (!(hwshare & CS4231_HWSHARE_DMA1) && request_dma(dma1, "CS4231 - 1")) {
+		snd_printk(KERN_ERR "cs4231: can't grab DMA1 %d\n", dma1);
+		snd_cs4231_free(chip);
+		return -EBUSY;
+	}
+	chip->dma1 = dma1;
+	if (!(hwshare & CS4231_HWSHARE_DMA2) && dma1 != dma2 && dma2 >= 0 && request_dma(dma2, "CS4231 - 2")) {
+		snd_printk(KERN_ERR "cs4231: can't grab DMA2 %d\n", dma2);
+		snd_cs4231_free(chip);
+		return -EBUSY;
+	}
+	if (dma1 == dma2 || dma2 < 0) {
+		chip->single_dma = 1;
+		chip->dma2 = chip->dma1;
+	} else
+		chip->dma2 = dma2;
+
+	/* global setup */
+	if (snd_cs4231_probe(chip) < 0) {
+		snd_cs4231_free(chip);
+		return -ENODEV;
+	}
+	snd_cs4231_init(chip);
+
+	if (chip->hardware & CS4231_HW_CS4232_MASK) {
+		if (chip->res_cport == NULL)
+			snd_printk("CS4232 control port features are not accessible\n");
+	}
+
+	/* Register device */
+	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
+		snd_cs4231_free(chip);
+		return err;
+	}
+
+#ifdef CONFIG_PM
+	/* Power Management */
+	chip->suspend = snd_cs4231_suspend;
+	chip->resume = snd_cs4231_resume;
+	snd_card_set_isa_pm_callback(card, snd_cs4231_pm_suspend, snd_cs4231_pm_resume, chip);
+#endif
+
+	*rchip = chip;
+	return 0;
+}
+
+#endif /* LEGACY_SUPPORT */
+
+static snd_pcm_ops_t snd_cs4231_playback_ops = {
+	.open =		snd_cs4231_playback_open,
+	.close =	snd_cs4231_playback_close,
+	.ioctl =	snd_pcm_lib_ioctl,
+	.hw_params =	snd_cs4231_playback_hw_params,
+	.hw_free =	snd_cs4231_playback_hw_free,
+	.prepare =	snd_cs4231_playback_prepare,
+	.trigger =	snd_cs4231_trigger,
+	.pointer =	snd_cs4231_playback_pointer,
+};
+
+static snd_pcm_ops_t snd_cs4231_capture_ops = {
+	.open =		snd_cs4231_capture_open,
+	.close =	snd_cs4231_capture_close,
+	.ioctl =	snd_pcm_lib_ioctl,
+	.hw_params =	snd_cs4231_capture_hw_params,
+	.hw_free =	snd_cs4231_capture_hw_free,
+	.prepare =	snd_cs4231_capture_prepare,
+	.trigger =	snd_cs4231_trigger,
+	.pointer =	snd_cs4231_capture_pointer,
+};
+
+static void snd_cs4231_pcm_free(snd_pcm_t *pcm)
+{
+	cs4231_t *chip = pcm->private_data;
+	chip->pcm = NULL;
+	snd_pcm_lib_preallocate_free_for_all(pcm);
+}
+
+int snd_cs4231_pcm(cs4231_t *chip, int device, snd_pcm_t **rpcm)
+{
+	snd_pcm_t *pcm;
+	int err;
+
+	if ((err = snd_pcm_new(chip->card, "CS4231", device, 1, 1, &pcm)) < 0)
+		return err;
+
+	spin_lock_init(&chip->reg_lock);
+	init_MUTEX(&chip->mce_mutex);
+	init_MUTEX(&chip->open_mutex);
+
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs4231_playback_ops);
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs4231_capture_ops);
+	
+	/* global setup */
+	pcm->private_data = chip;
+	pcm->private_free = snd_cs4231_pcm_free;
+	pcm->info_flags = 0;
+	if (chip->single_dma)
+		pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
+	if (chip->hardware != CS4231_HW_INTERWAVE)
+		pcm->info_flags |= SNDRV_PCM_INFO_JOINT_DUPLEX;
+	strcpy(pcm->name, snd_cs4231_chip_id(chip));
+
+#ifdef LEGACY_SUPPORT
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+					      snd_dma_isa_data(),
+					      64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
+#else
+#  ifdef EBUS_SUPPORT
+        if (chip->ebus_flag) {
+                snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+                				      chip->dev_u.pdev,
+						      64*1024, 128*1024);
+        } else {
+#  endif
+#  ifdef SBUS_SUPPORT
+                snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_SBUS,
+                				      chip->dev_u.sdev,
+						      64*1024, 128*1024);
+#  endif
+#  ifdef EBUS_SUPPORT
+        }
+#  endif
+#endif
+
+	chip->pcm = pcm;
+	if (rpcm)
+		*rpcm = pcm;
+	return 0;
+}
+
+static void snd_cs4231_timer_free(snd_timer_t *timer)
+{
+	cs4231_t *chip = timer->private_data;
+	chip->timer = NULL;
+}
+
+int snd_cs4231_timer(cs4231_t *chip, int device, snd_timer_t **rtimer)
+{
+	snd_timer_t *timer;
+	snd_timer_id_t tid;
+	int err;
+
+	/* Timer initialization */
+	tid.dev_class = SNDRV_TIMER_CLASS_CARD;
+	tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
+	tid.card = chip->card->number;
+	tid.device = device;
+	tid.subdevice = 0;
+	if ((err = snd_timer_new(chip->card, "CS4231", &tid, &timer)) < 0)
+		return err;
+	strcpy(timer->name, snd_cs4231_chip_id(chip));
+	timer->private_data = chip;
+	timer->private_free = snd_cs4231_timer_free;
+	timer->hw = snd_cs4231_timer_table;
+	chip->timer = timer;
+	if (rtimer)
+		*rtimer = timer;
+	return 0;
+}
+	
+/*
+ *  MIXER part
+ */
+
+static int snd_cs4231_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+{
+	static char *texts[4] = {
+		"Line", "Aux", "Mic", "Mix"
+	};
+	static char *opl3sa_texts[4] = {
+		"Line", "CD", "Mic", "Mix"
+	};
+	static char *gusmax_texts[4] = {
+		"Line", "Synth", "Mic", "Mix"
+	};
+	char **ptexts = texts;
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+
+	snd_assert(chip->card != NULL, return -EINVAL);
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+	uinfo->count = 2;
+	uinfo->value.enumerated.items = 4;
+	if (uinfo->value.enumerated.item > 3)
+		uinfo->value.enumerated.item = 3;
+	if (!strcmp(chip->card->driver, "GUS MAX"))
+		ptexts = gusmax_texts;
+	switch (chip->hardware) {
+	case CS4231_HW_INTERWAVE: ptexts = gusmax_texts; break;
+	case CS4231_HW_OPL3SA2: ptexts = opl3sa_texts; break;
+	}
+	strcpy(uinfo->value.enumerated.name, ptexts[uinfo->value.enumerated.item]);
+	return 0;
+}
+
+static int snd_cs4231_get_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	ucontrol->value.enumerated.item[0] = (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6;
+	ucontrol->value.enumerated.item[1] = (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6;
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return 0;
+}
+
+static int snd_cs4231_put_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	unsigned short left, right;
+	int change;
+	
+	if (ucontrol->value.enumerated.item[0] > 3 ||
+	    ucontrol->value.enumerated.item[1] > 3)
+		return -EINVAL;
+	left = ucontrol->value.enumerated.item[0] << 6;
+	right = ucontrol->value.enumerated.item[1] << 6;
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left;
+	right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right;
+	change = left != chip->image[CS4231_LEFT_INPUT] ||
+	         right != chip->image[CS4231_RIGHT_INPUT];
+	snd_cs4231_out(chip, CS4231_LEFT_INPUT, left);
+	snd_cs4231_out(chip, CS4231_RIGHT_INPUT, right);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return change;
+}
+
+int snd_cs4231_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+{
+	int mask = (kcontrol->private_value >> 16) & 0xff;
+
+	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = mask;
+	return 0;
+}
+
+int snd_cs4231_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int reg = kcontrol->private_value & 0xff;
+	int shift = (kcontrol->private_value >> 8) & 0xff;
+	int mask = (kcontrol->private_value >> 16) & 0xff;
+	int invert = (kcontrol->private_value >> 24) & 0xff;
+	
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	if (invert)
+		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
+	return 0;
+}
+
+int snd_cs4231_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int reg = kcontrol->private_value & 0xff;
+	int shift = (kcontrol->private_value >> 8) & 0xff;
+	int mask = (kcontrol->private_value >> 16) & 0xff;
+	int invert = (kcontrol->private_value >> 24) & 0xff;
+	int change;
+	unsigned short val;
+	
+	val = (ucontrol->value.integer.value[0] & mask);
+	if (invert)
+		val = mask - val;
+	val <<= shift;
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	val = (chip->image[reg] & ~(mask << shift)) | val;
+	change = val != chip->image[reg];
+	snd_cs4231_out(chip, reg, val);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return change;
+}
+
+int snd_cs4231_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+{
+	int mask = (kcontrol->private_value >> 24) & 0xff;
+
+	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = mask;
+	return 0;
+}
+
+int snd_cs4231_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int left_reg = kcontrol->private_value & 0xff;
+	int right_reg = (kcontrol->private_value >> 8) & 0xff;
+	int shift_left = (kcontrol->private_value >> 16) & 0x07;
+	int shift_right = (kcontrol->private_value >> 19) & 0x07;
+	int mask = (kcontrol->private_value >> 24) & 0xff;
+	int invert = (kcontrol->private_value >> 22) & 1;
+	
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
+	ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	if (invert) {
+		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
+		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
+	}
+	return 0;
+}
+
+int snd_cs4231_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int left_reg = kcontrol->private_value & 0xff;
+	int right_reg = (kcontrol->private_value >> 8) & 0xff;
+	int shift_left = (kcontrol->private_value >> 16) & 0x07;
+	int shift_right = (kcontrol->private_value >> 19) & 0x07;
+	int mask = (kcontrol->private_value >> 24) & 0xff;
+	int invert = (kcontrol->private_value >> 22) & 1;
+	int change;
+	unsigned short val1, val2;
+	
+	val1 = ucontrol->value.integer.value[0] & mask;
+	val2 = ucontrol->value.integer.value[1] & mask;
+	if (invert) {
+		val1 = mask - val1;
+		val2 = mask - val2;
+	}
+	val1 <<= shift_left;
+	val2 <<= shift_right;
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
+	val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
+	change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg];
+	snd_cs4231_out(chip, left_reg, val1);
+	snd_cs4231_out(chip, right_reg, val2);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return change;
+}
+
+static snd_kcontrol_new_t snd_cs4231_controls[] = {
+CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
+CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
+CS4231_DOUBLE("Line Playback Switch", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
+CS4231_DOUBLE("Line Playback Volume", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
+CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
+CS4231_DOUBLE("Aux Playback Volume", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
+CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
+CS4231_DOUBLE("Aux Playback Volume", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
+CS4231_SINGLE("Mono Playback Switch", 0, CS4231_MONO_CTRL, 7, 1, 1),
+CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
+CS4231_SINGLE("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, 6, 1, 1),
+CS4231_SINGLE("Mono Output Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0),
+CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 15, 0),
+{
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "Capture Source",
+	.info = snd_cs4231_info_mux,
+	.get = snd_cs4231_get_mux,
+	.put = snd_cs4231_put_mux,
+},
+CS4231_DOUBLE("Mic Boost", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5, 1, 0),
+CS4231_SINGLE("Loopback Capture Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
+CS4231_SINGLE("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1)
+};
+                                        
+int snd_cs4231_mixer(cs4231_t *chip)
+{
+	snd_card_t *card;
+	unsigned int idx;
+	int err;
+
+	snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
+
+	card = chip->card;
+
+	strcpy(card->mixername, chip->pcm->name);
+
+	for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) {
+		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4231_controls[idx], chip))) < 0)
+			return err;
+	}
+	return 0;
+}
+
+EXPORT_SYMBOL(snd_cs4231_out);
+EXPORT_SYMBOL(snd_cs4231_in);
+EXPORT_SYMBOL(snd_cs4236_ext_out);
+EXPORT_SYMBOL(snd_cs4236_ext_in);
+EXPORT_SYMBOL(snd_cs4231_mce_up);
+EXPORT_SYMBOL(snd_cs4231_mce_down);
+EXPORT_SYMBOL(snd_cs4231_interrupt);
+EXPORT_SYMBOL(snd_cs4231_chip_id);
+EXPORT_SYMBOL(snd_cs4231_create);
+EXPORT_SYMBOL(snd_cs4231_pcm);
+EXPORT_SYMBOL(snd_cs4231_mixer);
+EXPORT_SYMBOL(snd_cs4231_timer);
+EXPORT_SYMBOL(snd_cs4231_info_single);
+EXPORT_SYMBOL(snd_cs4231_get_single);
+EXPORT_SYMBOL(snd_cs4231_put_single);
+EXPORT_SYMBOL(snd_cs4231_info_double);
+EXPORT_SYMBOL(snd_cs4231_get_double);
+EXPORT_SYMBOL(snd_cs4231_put_double);
+
+/*
+ *  INIT part
+ */
+
+static int __init alsa_cs4231_init(void)
+{
+	return 0;
+}
+
+static void __exit alsa_cs4231_exit(void)
+{
+}
+
+module_init(alsa_cs4231_init)
+module_exit(alsa_cs4231_exit)
diff --git a/sound/isa/cs423x/cs4232.c b/sound/isa/cs423x/cs4232.c
new file mode 100644
index 000000000000..9fad2e6c0c2c
--- /dev/null
+++ b/sound/isa/cs423x/cs4232.c
@@ -0,0 +1,2 @@
+#define CS4232
+#include "cs4236.c"
diff --git a/sound/isa/cs423x/cs4236.c b/sound/isa/cs423x/cs4236.c
new file mode 100644
index 000000000000..e745a54e00a1
--- /dev/null
+++ b/sound/isa/cs423x/cs4236.c
@@ -0,0 +1,608 @@
+/*
+ *  Driver for generic CS4232/CS4235/CS4236/CS4236B/CS4237B/CS4238B/CS4239 chips
+ *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *
+ *
+ *   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/init.h>
+#include <linux/slab.h>
+#include <linux/pnp.h>
+#include <linux/moduleparam.h>
+#include <sound/core.h>
+#include <sound/cs4231.h>
+#include <sound/mpu401.h>
+#include <sound/opl3.h>
+#include <sound/initval.h>
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
+MODULE_LICENSE("GPL");
+#ifdef CS4232
+MODULE_DESCRIPTION("Cirrus Logic CS4232");
+MODULE_SUPPORTED_DEVICE("{{Turtle Beach,TBS-2000},"
+		"{Turtle Beach,Tropez Plus},"
+		"{SIC CrystalWave 32},"
+		"{Hewlett Packard,Omnibook 5500},"
+		"{TerraTec,Maestro 32/96},"
+		"{Philips,PCA70PS}}");
+#else
+MODULE_DESCRIPTION("Cirrus Logic CS4235-9");
+MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4235},"
+		"{Crystal Semiconductors,CS4236},"
+		"{Crystal Semiconductors,CS4237},"
+		"{Crystal Semiconductors,CS4238},"
+		"{Crystal Semiconductors,CS4239},"
+		"{Acer,AW37},"
+		"{Acer,AW35/Pro},"
+		"{Crystal,3D},"
+		"{Crystal Computer,TidalWave128},"
+		"{Dell,Optiplex GX1},"
+		"{Dell,Workstation 400 sound},"
+		"{EliteGroup,P5TX-LA sound},"
+		"{Gallant,SC-70P},"
+		"{Gateway,E1000 Onboard CS4236B},"
+		"{Genius,Sound Maker 3DJ},"
+		"{Hewlett Packard,HP6330 sound},"
+		"{IBM,PC 300PL sound},"
+		"{IBM,Aptiva 2137 E24},"
+		"{IBM,IntelliStation M Pro},"
+		"{Intel,Marlin Spike Mobo CS4235},"
+		"{Intel PR440FX Onboard},"
+		"{Guillemot,MaxiSound 16 PnP},"
+		"{NewClear,3D},"
+		"{TerraTec,AudioSystem EWS64L/XL},"
+		"{Typhoon Soundsystem,CS4236B},"
+		"{Turtle Beach,Malibu},"
+		"{Unknown,Digital PC 5000 Onboard}}");
+#endif
+
+#ifdef CS4232
+#define IDENT "CS4232"
+#else
+#define IDENT "CS4236+"
+#endif
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */
+#ifdef CONFIG_PNP
+static int isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
+#endif
+static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
+static long cport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
+static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;/* PnP setup */
+static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
+static long sb_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
+static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,11,12,15 */
+static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 9,11,12,15 */
+static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3,5,6,7 */
+static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3,5,6,7 */
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for " IDENT " soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for " IDENT " soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable " IDENT " soundcard.");
+#ifdef CONFIG_PNP
+module_param_array(isapnp, bool, NULL, 0444);
+MODULE_PARM_DESC(isapnp, "ISA PnP detection for specified soundcard.");
+#endif
+module_param_array(port, long, NULL, 0444);
+MODULE_PARM_DESC(port, "Port # for " IDENT " driver.");
+module_param_array(cport, long, NULL, 0444);
+MODULE_PARM_DESC(cport, "Control port # for " IDENT " driver.");
+module_param_array(mpu_port, long, NULL, 0444);
+MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " IDENT " driver.");
+module_param_array(fm_port, long, NULL, 0444);
+MODULE_PARM_DESC(fm_port, "FM port # for " IDENT " driver.");
+module_param_array(sb_port, long, NULL, 0444);
+MODULE_PARM_DESC(sb_port, "SB port # for " IDENT " driver (optional).");
+module_param_array(irq, int, NULL, 0444);
+MODULE_PARM_DESC(irq, "IRQ # for " IDENT " driver.");
+module_param_array(mpu_irq, int, NULL, 0444);
+MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " IDENT " driver.");
+module_param_array(dma1, int, NULL, 0444);
+MODULE_PARM_DESC(dma1, "DMA1 # for " IDENT " driver.");
+module_param_array(dma2, int, NULL, 0444);
+MODULE_PARM_DESC(dma2, "DMA2 # for " IDENT " driver.");
+
+struct snd_card_cs4236 {
+	struct resource *res_sb_port;
+#ifdef CONFIG_PNP
+	struct pnp_dev *wss;
+	struct pnp_dev *ctrl;
+	struct pnp_dev *mpu;
+#endif
+};
+
+static snd_card_t *snd_cs4236_legacy[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
+
+#ifdef CONFIG_PNP
+
+#define ISAPNP_CS4232(_va, _vb, _vc, _device, _wss, _ctrl, _mpu401) \
+	{ \
+		ISAPNP_CARD_ID(_va, _vb, _vc, _device), \
+		.devs = { ISAPNP_DEVICE_ID(_va, _vb, _vc, _wss), \
+                          ISAPNP_DEVICE_ID(_va, _vb, _vc, _ctrl), \
+			  ISAPNP_DEVICE_ID(_va, _vb, _vc, _mpu401) } \
+        }
+#define ISAPNP_CS4232_1(_va, _vb, _vc, _device, _wss, _ctrl, _mpu401) \
+	{ \
+		ISAPNP_CARD_ID(_va, _vb, _vc, _device), \
+		.devs = { ISAPNP_DEVICE_ID(_va, _vb, _vc, _wss), \
+                          ISAPNP_DEVICE_ID(_va, _vb, _vc, _ctrl), \
+		 	  ISAPNP_DEVICE_ID('P', 'N', 'P', _mpu401) } \
+        }
+#define ISAPNP_CS4232_WOMPU(_va, _vb, _vc, _device, _wss, _ctrl) \
+	{ \
+		ISAPNP_CARD_ID(_va, _vb, _vc, _device), \
+		.devs = { ISAPNP_DEVICE_ID(_va, _vb, _vc, _wss), \
+                          ISAPNP_DEVICE_ID(_va, _vb, _vc, _ctrl) } \
+        }
+
+
+#ifdef CS4232
+static struct pnp_card_device_id snd_cs423x_pnpids[] = {
+	/* Philips PCA70PS */
+	{ .id = "CSC0d32", .devs = { { "CSC0000" }, { "CSC0010" }, { "PNPb006" } } },
+	/* TerraTec Maestro 32/96 (CS4232) */
+	{ .id = "CSC1a32", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* HP Omnibook 5500 onboard */
+	{ .id = "CSC4232", .devs = { { "CSC0000" }, { "CSC0002" }, { "CSC0003" } } },
+	/* Unnamed CS4236 card (Made in Taiwan) */
+	{ .id = "CSC4236", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* Turtle Beach TBS-2000 (CS4232) */
+	{ .id = "CSC7532", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSCb006" } } },
+	/* Turtle Beach Tropez Plus (CS4232) */
+	{ .id = "CSC7632", .devs = { { "CSC0000" }, { "CSC0010" }, { "PNPb006" } } },
+	/* SIC CrystalWave 32 (CS4232) */
+	{ .id = "CSCf032", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* --- */
+	{ .id = "" }	/* end */
+};
+#else /* CS4236 */
+static struct pnp_card_device_id snd_cs423x_pnpids[] = {
+	/* Intel Marlin Spike Motherboard - CS4235 */
+	{ .id = "CSC0225", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* Intel Marlin Spike Motherboard (#2) - CS4235 */
+	{ .id = "CSC0225", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC0103" } } },
+	/* Unknown Intel mainboard - CS4235 */
+	{ .id = "CSC0225", .devs = { { "CSC0100" }, { "CSC0110" } } },
+	/* Genius Sound Maker 3DJ - CS4237B */
+	{ .id = "CSC0437", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* Digital PC 5000 Onboard - CS4236B */
+	{ .id = "CSC0735", .devs = { { "CSC0000" }, { "CSC0010" } } },
+	/* some uknown CS4236B */
+	{ .id = "CSC0b35", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* Intel PR440FX Onboard sound */
+	{ .id = "CSC0b36", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* CS4235 on mainboard without MPU */
+	{ .id = "CSC1425", .devs = { { "CSC0100" }, { "CSC0110" } } },
+	/* Gateway E1000 Onboard CS4236B */
+	{ .id = "CSC1335", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* HP 6330 Onboard sound */
+	{ .id = "CSC1525", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC0103" } } },
+	/* Crystal Computer TidalWave128 */
+	{ .id = "CSC1e37", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* ACER AW37 - CS4235 */
+	{ .id = "CSC4236", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* build-in soundcard in EliteGroup P5TX-LA motherboard - CS4237B */
+	{ .id = "CSC4237", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* Crystal 3D - CS4237B */
+	{ .id = "CSC4336", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* Typhoon Soundsystem PnP - CS4236B */
+	{ .id = "CSC4536", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* Crystal CX4235-XQ3 EP - CS4235 */
+	{ .id = "CSC4625", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC0103" } } },
+	/* Crystal Semiconductors CS4237B */
+	{ .id = "CSC4637", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* NewClear 3D - CX4237B-XQ3 */
+	{ .id = "CSC4837", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* Dell Optiplex GX1 - CS4236B */
+	{ .id = "CSC6835", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* Dell P410 motherboard - CS4236B */
+	{ .id = "CSC6835", .devs = { { "CSC0000" }, { "CSC0010" } } },
+	/* Dell Workstation 400 Onboard - CS4236B */
+	{ .id = "CSC6836", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* Turtle Beach Malibu - CS4237B */
+	{ .id = "CSC7537", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* CS4235 - onboard */
+	{ .id = "CSC8025", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC0103" } } },
+	/* IBM Aptiva 2137 E24 Onboard - CS4237B */
+	{ .id = "CSC8037", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* IBM IntelliStation M Pro motherboard */
+	{ .id = "CSCc835", .devs = { { "CSC0000" }, { "CSC0010" } } },
+	/* Guillemot MaxiSound 16 PnP - CS4236B */
+	{ .id = "CSC9836", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* Gallant SC-70P */
+	{ .id = "CSC9837", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* TerraTec AudioSystem EWS64XL - CS4236B */
+	{ .id = "CSCa836", .devs = { { "CSCa800" }, { "CSCa810" }, { "CSCa803" } } },
+	/* TerraTec AudioSystem EWS64XL - CS4236B */
+	{ .id = "CSCa836", .devs = { { "CSCa800" }, { "CSCa810" } } },
+	/* ACER AW37/Pro - CS4235 */
+	{ .id = "CSCd925", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* ACER AW35/Pro - CS4237B */
+	{ .id = "CSCd937", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* CS4235 without MPU401 */
+	{ .id = "CSCe825", .devs = { { "CSC0100" }, { "CSC0110" } } },
+	/* Unknown SiS530 - CS4235 */
+	{ .id = "CSC4825", .devs = { { "CSC0100" }, { "CSC0110" } } },
+	/* IBM IntelliStation M Pro 6898 11U - CS4236B */
+	{ .id = "CSCe835", .devs = { { "CSC0000" }, { "CSC0010" } } },
+	/* IBM PC 300PL Onboard - CS4236B */
+	{ .id = "CSCe836", .devs = { { "CSC0000" }, { "CSC0010" } } },
+	/* Some noname CS4236 based card */
+	{ .id = "CSCe936", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* CS4236B */
+	{ .id = "CSCf235", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* CS4236B */
+	{ .id = "CSCf238", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
+	/* --- */
+	{ .id = "" }	/* end */
+};
+#endif
+
+MODULE_DEVICE_TABLE(pnp_card, snd_cs423x_pnpids);
+
+static int __devinit snd_card_cs4236_pnp(int dev, struct snd_card_cs4236 *acard,
+					 struct pnp_card_link *card,
+					 const struct pnp_card_device_id *id)
+{
+	struct pnp_dev *pdev;
+	struct pnp_resource_table * cfg = kmalloc(sizeof(struct pnp_resource_table), GFP_KERNEL);
+	int err;
+
+	if (!cfg)
+		return -ENOMEM;
+
+	acard->wss = pnp_request_card_device(card, id->devs[0].id, NULL);
+	if (acard->wss == NULL) {
+		kfree(cfg);
+		return -EBUSY;
+	}
+	acard->ctrl = pnp_request_card_device(card, id->devs[1].id, NULL);
+	if (acard->ctrl == NULL) {
+		kfree(cfg);
+		return -EBUSY;
+	}
+	if (id->devs[2].id[0]) {
+		acard->mpu = pnp_request_card_device(card, id->devs[2].id, NULL);
+		if (acard->mpu == NULL) {
+			kfree(cfg);
+			return -EBUSY;
+		}
+	}
+
+	/* WSS initialization */
+	pdev = acard->wss;
+	pnp_init_resource_table(cfg);
+	if (port[dev] != SNDRV_AUTO_PORT)
+		pnp_resource_change(&cfg->port_resource[0], port[dev], 4);
+	if (fm_port[dev] != SNDRV_AUTO_PORT && fm_port[dev] > 0)
+		pnp_resource_change(&cfg->port_resource[1], fm_port[dev], 4);
+	if (sb_port[dev] != SNDRV_AUTO_PORT)
+		pnp_resource_change(&cfg->port_resource[2], sb_port[dev], 16);
+	if (irq[dev] != SNDRV_AUTO_IRQ)
+		pnp_resource_change(&cfg->irq_resource[0], irq[dev], 1);
+	if (dma1[dev] != SNDRV_AUTO_DMA)
+		pnp_resource_change(&cfg->dma_resource[0], dma1[dev], 1);
+	if (dma2[dev] != SNDRV_AUTO_DMA)
+		pnp_resource_change(&cfg->dma_resource[1], dma2[dev] < 0 ? 4 : dma2[dev], 1);
+	err = pnp_manual_config_dev(pdev, cfg, 0);
+	if (err < 0)
+		snd_printk(KERN_ERR IDENT " WSS PnP manual resources are invalid, using auto config\n");
+	err = pnp_activate_dev(pdev);
+	if (err < 0) {
+		kfree(cfg);
+		printk(KERN_ERR IDENT " WSS PnP configure failed for WSS (out of resources?)\n");
+		return -EBUSY;
+	}
+	port[dev] = pnp_port_start(pdev, 0);
+	if (fm_port[dev] > 0)
+		fm_port[dev] = pnp_port_start(pdev, 1);
+	sb_port[dev] = pnp_port_start(pdev, 2);
+	irq[dev] = pnp_irq(pdev, 0);
+	dma1[dev] = pnp_dma(pdev, 0);
+	dma2[dev] = pnp_dma(pdev, 1) == 4 ? -1 : (int)pnp_dma(pdev, 1);
+	snd_printdd("isapnp WSS: wss port=0x%lx, fm port=0x%lx, sb port=0x%lx\n",
+			port[dev], fm_port[dev], sb_port[dev]);
+	snd_printdd("isapnp WSS: irq=%i, dma1=%i, dma2=%i\n",
+			irq[dev], dma1[dev], dma2[dev]);
+	/* CTRL initialization */
+	if (acard->ctrl && cport[dev] > 0) {
+		pdev = acard->ctrl;
+		pnp_init_resource_table(cfg);
+		if (cport[dev] != SNDRV_AUTO_PORT)
+			pnp_resource_change(&cfg->port_resource[0], cport[dev], 8);
+		err = pnp_manual_config_dev(pdev, cfg, 0);
+		if (err < 0)
+			snd_printk(KERN_ERR IDENT " CTRL PnP manual resources are invalid, using auto config\n");
+		err = pnp_activate_dev(pdev);
+		if (err < 0) {
+			kfree(cfg);
+			printk(KERN_ERR IDENT " CTRL PnP configure failed for WSS (out of resources?)\n");
+			return -EBUSY;
+		}
+		cport[dev] = pnp_port_start(pdev, 0);
+		snd_printdd("isapnp CTRL: control port=0x%lx\n", cport[dev]);
+	}
+	/* MPU initialization */
+	if (acard->mpu && mpu_port[dev] > 0) {
+		pdev = acard->mpu;
+		pnp_init_resource_table(cfg);
+		if (mpu_port[dev] != SNDRV_AUTO_PORT)
+			pnp_resource_change(&cfg->port_resource[0], mpu_port[dev], 2);
+		if (mpu_irq[dev] != SNDRV_AUTO_IRQ && mpu_irq[dev] >= 0 &&
+		    pnp_irq_valid(pdev, 0))
+			pnp_resource_change(&cfg->irq_resource[0], mpu_irq[dev], 1);
+		err = pnp_manual_config_dev(pdev, cfg, 0);
+		if (err < 0)
+			snd_printk(KERN_ERR IDENT " MPU401 PnP manual resources are invalid, using auto config\n");
+		err = pnp_activate_dev(pdev);
+		if (err < 0) {
+			printk(KERN_ERR IDENT " MPU401 PnP configure failed for WSS (out of resources?)\n");
+			mpu_port[dev] = SNDRV_AUTO_PORT;
+			mpu_irq[dev] = SNDRV_AUTO_IRQ;
+		} else {
+			mpu_port[dev] = pnp_port_start(pdev, 0);
+			if (mpu_irq[dev] >= 0 &&
+			    pnp_irq_valid(pdev, 0) && pnp_irq(pdev, 0) >= 0) {
+				mpu_irq[dev] = pnp_irq(pdev, 0);
+			} else {
+				mpu_irq[dev] = -1;	/* disable interrupt */
+			}
+		}
+		snd_printdd("isapnp MPU: port=0x%lx, irq=%i\n", mpu_port[dev], mpu_irq[dev]);
+	}
+	kfree(cfg);
+	return 0;
+}
+#endif /* CONFIG_PNP */
+
+static void snd_card_cs4236_free(snd_card_t *card)
+{
+	struct snd_card_cs4236 *acard = (struct snd_card_cs4236 *)card->private_data;
+
+	if (acard) {
+		if (acard->res_sb_port) {
+			release_resource(acard->res_sb_port);
+			kfree_nocheck(acard->res_sb_port);
+		}
+	}
+}
+
+static int __devinit snd_card_cs423x_probe(int dev, struct pnp_card_link *pcard,
+					   const struct pnp_card_device_id *pid)
+{
+	snd_card_t *card;
+	struct snd_card_cs4236 *acard;
+	snd_pcm_t *pcm = NULL;
+	cs4231_t *chip;
+	opl3_t *opl3;
+	int err;
+
+#ifdef CONFIG_PNP
+	if (!isapnp[dev]) {
+#endif
+		if (port[dev] == SNDRV_AUTO_PORT) {
+			snd_printk("specify port\n");
+			return -EINVAL;
+		}
+		if (cport[dev] == SNDRV_AUTO_PORT) {
+			snd_printk("specify cport\n");
+			return -EINVAL;
+		}
+#ifdef CONFIG_PNP
+	}
+#endif
+	card = snd_card_new(index[dev], id[dev], THIS_MODULE,
+			    sizeof(struct snd_card_cs4236));
+	if (card == NULL)
+		return -ENOMEM;
+	acard = (struct snd_card_cs4236 *)card->private_data;
+	card->private_free = snd_card_cs4236_free;
+#ifdef CONFIG_PNP
+	if (isapnp[dev]) {
+		if ((err = snd_card_cs4236_pnp(dev, acard, pcard, pid))<0) {
+			printk(KERN_ERR "isapnp detection failed and probing for " IDENT " is not supported\n");
+			snd_card_free(card);
+			return -ENXIO;
+		}
+		snd_card_set_dev(card, &pcard->card->dev);
+	}
+#endif
+	if (sb_port[dev] > 0 && sb_port[dev] != SNDRV_AUTO_PORT)
+		if ((acard->res_sb_port = request_region(sb_port[dev], 16, IDENT " SB")) == NULL) {
+			printk(KERN_ERR IDENT ": unable to register SB port at 0x%lx\n", sb_port[dev]);
+			snd_card_free(card);
+			return -ENOMEM;
+		}
+
+#ifdef CS4232
+	if ((err = snd_cs4231_create(card,
+				     port[dev],
+				     cport[dev],
+				     irq[dev],
+				     dma1[dev],
+				     dma2[dev],
+				     CS4231_HW_DETECT,
+				     0,
+				     &chip)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+	if ((err = snd_cs4231_pcm(chip, 0, &pcm)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+	if ((err = snd_cs4231_mixer(chip)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+
+#else /* CS4236 */
+	if ((err = snd_cs4236_create(card,
+				     port[dev],
+				     cport[dev],
+				     irq[dev],
+				     dma1[dev],
+				     dma2[dev],
+				     CS4231_HW_DETECT,
+				     0,
+				     &chip)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+	if ((err = snd_cs4236_pcm(chip, 0, &pcm)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+	if ((err = snd_cs4236_mixer(chip)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+#endif
+	strcpy(card->driver, pcm->name);
+	strcpy(card->shortname, pcm->name);
+	sprintf(card->longname, "%s at 0x%lx, irq %i, dma %i",
+		pcm->name,
+		chip->port,
+		irq[dev],
+		dma1[dev]);
+	if (dma2[dev] >= 0)
+		sprintf(card->longname + strlen(card->longname), "&%d", dma2[dev]);
+
+	if ((err = snd_cs4231_timer(chip, 0, NULL)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+
+	if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
+		if (snd_opl3_create(card,
+				    fm_port[dev], fm_port[dev] + 2,
+				    OPL3_HW_OPL3_CS, 0, &opl3) < 0) {
+			printk(KERN_ERR IDENT ": OPL3 not detected\n");
+		} else {
+			if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
+				snd_card_free(card);
+				return err;
+			}
+		}
+	}
+
+	if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
+		if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
+			mpu_irq[dev] = -1;
+		if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
+					mpu_port[dev], 0,
+					mpu_irq[dev],
+					mpu_irq[dev] >= 0 ? SA_INTERRUPT : 0, NULL) < 0)
+			printk(KERN_ERR IDENT ": MPU401 not detected\n");
+	}
+	if ((err = snd_card_register(card)) < 0) {
+		snd_card_free(card);
+		return err;
+	}
+	if (pcard)
+		pnp_set_card_drvdata(pcard, card);
+	else
+		snd_cs4236_legacy[dev] = card;
+	return 0;
+}
+
+#ifdef CONFIG_PNP
+static int __devinit snd_cs423x_pnp_detect(struct pnp_card_link *card,
+					   const struct pnp_card_device_id *id)
+{
+	static int dev;
+	int res;
+
+	for ( ; dev < SNDRV_CARDS; dev++) {
+		if (!enable[dev] || !isapnp[dev])
+			continue;
+		res = snd_card_cs423x_probe(dev, card, id);
+		if (res < 0)
+			return res;
+		dev++;
+		return 0;
+	}
+	return -ENODEV;
+}
+
+static void __devexit snd_cs423x_pnp_remove(struct pnp_card_link * pcard)
+{
+	snd_card_t *card = (snd_card_t *) pnp_get_card_drvdata(pcard);
+        
+	snd_card_disconnect(card);
+	snd_card_free_in_thread(card);
+}
+                        
+static struct pnp_card_driver cs423x_pnpc_driver = {
+	.flags = PNP_DRIVER_RES_DISABLE,
+	.name = "cs423x",
+	.id_table = snd_cs423x_pnpids,
+	.probe = snd_cs423x_pnp_detect,
+	.remove = __devexit_p(snd_cs423x_pnp_remove),
+};
+#endif /* CONFIG_PNP */
+
+static int __init alsa_card_cs423x_init(void)
+{
+	int dev, cards = 0;
+
+	for (dev = 0; dev < SNDRV_CARDS; dev++) {
+		if (!enable[dev])
+			continue;
+#ifdef CONFIG_PNP
+		if (isapnp[dev])
+			continue;
+#endif
+		if (snd_card_cs423x_probe(dev, NULL, NULL) >= 0)
+			cards++;
+	}
+#ifdef CONFIG_PNP
+	cards += pnp_register_card_driver(&cs423x_pnpc_driver);
+#endif
+	if (!cards) {
+#ifdef CONFIG_PNP
+		pnp_unregister_card_driver(&cs423x_pnpc_driver);
+#endif
+#ifdef MODULE
+		printk(KERN_ERR IDENT " soundcard not found or device busy\n");
+#endif
+		return -ENODEV;
+	}
+	return 0;
+}
+
+static void __exit alsa_card_cs423x_exit(void)
+{
+	int idx;
+
+#ifdef CONFIG_PNP
+	/* PnP cards first */
+	pnp_unregister_card_driver(&cs423x_pnpc_driver);
+#endif
+	for (idx = 0; idx < SNDRV_CARDS; idx++)
+		snd_card_free(snd_cs4236_legacy[idx]);
+}
+
+module_init(alsa_card_cs423x_init)
+module_exit(alsa_card_cs423x_exit)
diff --git a/sound/isa/cs423x/cs4236_lib.c b/sound/isa/cs423x/cs4236_lib.c
new file mode 100644
index 000000000000..2128d4bdef41
--- /dev/null
+++ b/sound/isa/cs423x/cs4236_lib.c
@@ -0,0 +1,970 @@
+/*
+ *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *  Routines for control of CS4235/4236B/4237B/4238B/4239 chips
+ *
+ *  Note:
+ *     -----
+ *
+ *  Bugs:
+ *     -----
+ *
+ *   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
+ *
+ */
+
+/*
+ *  Indirect control registers (CS4236B+)
+ * 
+ *  C0
+ *     D8: WSS reset (all chips)
+ *
+ *  C1 (all chips except CS4236)
+ *     D7-D5: version 
+ *     D4-D0: chip id
+ *             11101 - CS4235
+ *             01011 - CS4236B
+ *             01000 - CS4237B
+ *             01001 - CS4238B
+ *             11110 - CS4239
+ *
+ *  C2
+ *     D7-D4: 3D Space (CS4235,CS4237B,CS4238B,CS4239)
+ *     D3-D0: 3D Center (CS4237B); 3D Volume (CS4238B)
+ * 
+ *  C3
+ *     D7: 3D Enable (CS4237B)
+ *     D6: 3D Mono Enable (CS4237B)
+ *     D5: 3D Serial Output (CS4237B,CS4238B)
+ *     D4: 3D Enable (CS4235,CS4238B,CS4239)
+ *
+ *  C4
+ *     D7: consumer serial port enable (CS4237B,CS4238B)
+ *     D6: channels status block reset (CS4237B,CS4238B)
+ *     D5: user bit in sub-frame of digital audio data (CS4237B,CS4238B)
+ *     D4: validity bit bit in sub-frame of digital audio data (CS4237B,CS4238B)
+ * 
+ *  C5  lower channel status (digital serial data description) (CS4237B,CS4238B)
+ *     D7-D6: first two bits of category code
+ *     D5: lock
+ *     D4-D3: pre-emphasis (0 = none, 1 = 50/15us)
+ *     D2: copy/copyright (0 = copy inhibited)
+ *     D1: 0 = digital audio / 1 = non-digital audio
+ *     
+ *  C6  upper channel status (digital serial data description) (CS4237B,CS4238B)
+ *     D7-D6: sample frequency (0 = 44.1kHz)
+ *     D5: generation status (0 = no indication, 1 = original/commercially precaptureed data)
+ *     D4-D0: category code (upper bits)
+ *
+ *  C7  reserved (must write 0)
+ *
+ *  C8  wavetable control
+ *     D7: volume control interrupt enable (CS4235,CS4239)
+ *     D6: hardware volume control format (CS4235,CS4239)
+ *     D3: wavetable serial port enable (all chips)
+ *     D2: DSP serial port switch (all chips)
+ *     D1: disable MCLK (all chips)
+ *     D0: force BRESET low (all chips)
+ *
+ */
+
+#include <sound/driver.h>
+#include <asm/io.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/time.h>
+#include <linux/wait.h>
+#include <sound/core.h>
+#include <sound/cs4231.h>
+#include <sound/asoundef.h>
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
+MODULE_DESCRIPTION("Routines for control of CS4235/4236B/4237B/4238B/4239 chips");
+MODULE_LICENSE("GPL");
+
+/*
+ *
+ */
+
+static unsigned char snd_cs4236_ext_map[18] = {
+	/* CS4236_LEFT_LINE */		0xff,
+	/* CS4236_RIGHT_LINE */		0xff,
+	/* CS4236_LEFT_MIC */		0xdf,
+	/* CS4236_RIGHT_MIC */		0xdf,
+	/* CS4236_LEFT_MIX_CTRL */	0xe0 | 0x18,
+	/* CS4236_RIGHT_MIX_CTRL */	0xe0,
+	/* CS4236_LEFT_FM */		0xbf,
+	/* CS4236_RIGHT_FM */		0xbf,
+	/* CS4236_LEFT_DSP */		0xbf,
+	/* CS4236_RIGHT_DSP */		0xbf,
+	/* CS4236_RIGHT_LOOPBACK */	0xbf,
+	/* CS4236_DAC_MUTE */		0xe0,
+	/* CS4236_ADC_RATE */		0x01,	/* 48kHz */
+	/* CS4236_DAC_RATE */		0x01,	/* 48kHz */
+	/* CS4236_LEFT_MASTER */	0xbf,
+	/* CS4236_RIGHT_MASTER */	0xbf,
+	/* CS4236_LEFT_WAVE */		0xbf,
+	/* CS4236_RIGHT_WAVE */		0xbf
+};
+
+/*
+ *
+ */
+
+static void snd_cs4236_ctrl_out(cs4231_t *chip, unsigned char reg, unsigned char val)
+{
+	outb(reg, chip->cport + 3);
+	outb(chip->cimage[reg] = val, chip->cport + 4);
+}
+
+static unsigned char snd_cs4236_ctrl_in(cs4231_t *chip, unsigned char reg)
+{
+	outb(reg, chip->cport + 3);
+	return inb(chip->cport + 4);
+}
+
+/*
+ *  PCM
+ */
+
+#define CLOCKS 8
+
+static ratnum_t clocks[CLOCKS] = {
+	{ .num = 16934400, .den_min = 353, .den_max = 353, .den_step = 1 },
+	{ .num = 16934400, .den_min = 529, .den_max = 529, .den_step = 1 },
+	{ .num = 16934400, .den_min = 617, .den_max = 617, .den_step = 1 },
+	{ .num = 16934400, .den_min = 1058, .den_max = 1058, .den_step = 1 },
+	{ .num = 16934400, .den_min = 1764, .den_max = 1764, .den_step = 1 },
+	{ .num = 16934400, .den_min = 2117, .den_max = 2117, .den_step = 1 },
+	{ .num = 16934400, .den_min = 2558, .den_max = 2558, .den_step = 1 },
+	{ .num = 16934400/16, .den_min = 21, .den_max = 192, .den_step = 1 }
+};
+
+static snd_pcm_hw_constraint_ratnums_t hw_constraints_clocks = {
+	.nrats = CLOCKS,
+	.rats = clocks,
+};
+
+static int snd_cs4236_xrate(snd_pcm_runtime_t *runtime)
+{
+	return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
+					     &hw_constraints_clocks);
+}
+
+static unsigned char divisor_to_rate_register(unsigned int divisor)
+{
+	switch (divisor) {
+	case 353:	return 1;
+	case 529:	return 2;
+	case 617:	return 3;
+	case 1058:	return 4;
+	case 1764:	return 5;
+	case 2117:	return 6;
+	case 2558:	return 7;
+	default:
+		snd_runtime_check(divisor >= 21 && divisor <= 192, return 192);
+		return divisor;
+	}
+}
+
+static void snd_cs4236_playback_format(cs4231_t *chip, snd_pcm_hw_params_t *params, unsigned char pdfr)
+{
+	unsigned long flags;
+	unsigned char rate = divisor_to_rate_register(params->rate_den);
+	
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	/* set fast playback format change and clean playback FIFO */
+	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | 0x10);
+	snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, pdfr & 0xf0);
+	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] & ~0x10);
+	snd_cs4236_ext_out(chip, CS4236_DAC_RATE, rate);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+}
+
+static void snd_cs4236_capture_format(cs4231_t *chip, snd_pcm_hw_params_t *params, unsigned char cdfr)
+{
+	unsigned long flags;
+	unsigned char rate = divisor_to_rate_register(params->rate_den);
+	
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	/* set fast capture format change and clean capture FIFO */
+	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] | 0x20);
+	snd_cs4231_out(chip, CS4231_REC_FORMAT, cdfr & 0xf0);
+	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1] & ~0x20);
+	snd_cs4236_ext_out(chip, CS4236_ADC_RATE, rate);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+}
+
+#ifdef CONFIG_PM
+
+static void snd_cs4236_suspend(cs4231_t *chip)
+{
+	int reg;
+	unsigned long flags;
+	
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	for (reg = 0; reg < 32; reg++)
+		chip->image[reg] = snd_cs4231_in(chip, reg);
+	for (reg = 0; reg < 18; reg++)
+		chip->eimage[reg] = snd_cs4236_ext_in(chip, CS4236_I23VAL(reg));
+	for (reg = 2; reg < 9; reg++)
+		chip->cimage[reg] = snd_cs4236_ctrl_in(chip, reg);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+}
+
+static void snd_cs4236_resume(cs4231_t *chip)
+{
+	int reg;
+	unsigned long flags;
+	
+	snd_cs4231_mce_up(chip);
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	for (reg = 0; reg < 32; reg++) {
+		switch (reg) {
+		case CS4236_EXT_REG:
+		case CS4231_VERSION:
+		case 27:	/* why? CS4235 - master left */
+		case 29:	/* why? CS4235 - master right */
+			break;
+		default:
+			snd_cs4231_out(chip, reg, chip->image[reg]);
+			break;
+		}
+	}
+	for (reg = 0; reg < 18; reg++)
+		snd_cs4236_ext_out(chip, CS4236_I23VAL(reg), chip->eimage[reg]);
+	for (reg = 2; reg < 9; reg++) {
+		switch (reg) {
+		case 7:
+			break;
+		default:
+			snd_cs4236_ctrl_out(chip, reg, chip->cimage[reg]);
+		}
+	}
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	snd_cs4231_mce_down(chip);
+}
+
+#endif /* CONFIG_PM */
+
+int snd_cs4236_create(snd_card_t * card,
+		      unsigned long port,
+		      unsigned long cport,
+		      int irq, int dma1, int dma2,
+		      unsigned short hardware,
+		      unsigned short hwshare,
+		      cs4231_t ** rchip)
+{
+	cs4231_t *chip;
+	unsigned char ver1, ver2;
+	unsigned int reg;
+	int err;
+
+	*rchip = NULL;
+	if (hardware == CS4231_HW_DETECT)
+		hardware = CS4231_HW_DETECT3;
+	if (cport < 0x100) {
+		snd_printk("please, specify control port for CS4236+ chips\n");
+		return -ENODEV;
+	}
+	if ((err = snd_cs4231_create(card, port, cport, irq, dma1, dma2, hardware, hwshare, &chip)) < 0)
+		return err;
+
+	if (!(chip->hardware & CS4231_HW_CS4236B_MASK)) {
+	        snd_printk("CS4236+: MODE3 and extended registers not available, hardware=0x%x\n",chip->hardware);
+		snd_device_free(card, chip);
+		return -ENODEV;
+	}
+#if 0
+	{
+		int idx;
+		for (idx = 0; idx < 8; idx++)
+			snd_printk("CD%i = 0x%x\n", idx, inb(chip->cport + idx));
+		for (idx = 0; idx < 9; idx++)
+			snd_printk("C%i = 0x%x\n", idx, snd_cs4236_ctrl_in(chip, idx));
+	}
+#endif
+	ver1 = snd_cs4236_ctrl_in(chip, 1);
+	ver2 = snd_cs4236_ext_in(chip, CS4236_VERSION);
+	snd_printdd("CS4236: [0x%lx] C1 (version) = 0x%x, ext = 0x%x\n", cport, ver1, ver2);
+	if (ver1 != ver2) {
+		snd_printk("CS4236+ chip detected, but control port 0x%lx is not valid\n", cport);
+		snd_device_free(card, chip);
+		return -ENODEV;
+	}
+	snd_cs4236_ctrl_out(chip, 0, 0x00);
+	snd_cs4236_ctrl_out(chip, 2, 0xff);
+	snd_cs4236_ctrl_out(chip, 3, 0x00);
+	snd_cs4236_ctrl_out(chip, 4, 0x80);
+	snd_cs4236_ctrl_out(chip, 5, ((IEC958_AES1_CON_PCM_CODER & 3) << 6) | IEC958_AES0_CON_EMPHASIS_NONE);
+	snd_cs4236_ctrl_out(chip, 6, IEC958_AES1_CON_PCM_CODER >> 2);
+	snd_cs4236_ctrl_out(chip, 7, 0x00);
+	/* 0x8c for C8 is valid for Turtle Beach Malibu - the IEC-958 output */
+	/* is working with this setup, other hardware should have */
+	/* different signal paths and this value should be selectable */
+	/* in the future */
+	snd_cs4236_ctrl_out(chip, 8, 0x8c);
+	chip->rate_constraint = snd_cs4236_xrate;
+	chip->set_playback_format = snd_cs4236_playback_format;
+	chip->set_capture_format = snd_cs4236_capture_format;
+#ifdef CONFIG_PM
+	chip->suspend = snd_cs4236_suspend;
+	chip->resume = snd_cs4236_resume;
+#endif
+
+	/* initialize extended registers */
+	for (reg = 0; reg < sizeof(snd_cs4236_ext_map); reg++)
+		snd_cs4236_ext_out(chip, CS4236_I23VAL(reg), snd_cs4236_ext_map[reg]);
+
+        /* initialize compatible but more featured registers */
+	snd_cs4231_out(chip, CS4231_LEFT_INPUT, 0x40);
+	snd_cs4231_out(chip, CS4231_RIGHT_INPUT, 0x40);
+	snd_cs4231_out(chip, CS4231_AUX1_LEFT_INPUT, 0xff);
+	snd_cs4231_out(chip, CS4231_AUX1_RIGHT_INPUT, 0xff);
+	snd_cs4231_out(chip, CS4231_AUX2_LEFT_INPUT, 0xdf);
+	snd_cs4231_out(chip, CS4231_AUX2_RIGHT_INPUT, 0xdf);
+	snd_cs4231_out(chip, CS4231_RIGHT_LINE_IN, 0xff);
+	snd_cs4231_out(chip, CS4231_LEFT_LINE_IN, 0xff);
+	snd_cs4231_out(chip, CS4231_RIGHT_LINE_IN, 0xff);
+	switch (chip->hardware) {
+	case CS4231_HW_CS4235:
+	case CS4231_HW_CS4239:
+		snd_cs4231_out(chip, CS4235_LEFT_MASTER, 0xff);
+		snd_cs4231_out(chip, CS4235_RIGHT_MASTER, 0xff);
+		break;
+	}
+
+	*rchip = chip;
+	return 0;
+}
+
+int snd_cs4236_pcm(cs4231_t *chip, int device, snd_pcm_t **rpcm)
+{
+	snd_pcm_t *pcm;
+	int err;
+	
+	if ((err = snd_cs4231_pcm(chip, device, &pcm)) < 0)
+		return err;
+	pcm->info_flags &= ~SNDRV_PCM_INFO_JOINT_DUPLEX;
+	if (rpcm)
+		*rpcm = pcm;
+	return 0;
+}
+
+/*
+ *  MIXER
+ */
+
+#define CS4236_SINGLE(xname, xindex, reg, shift, mask, invert) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+  .info = snd_cs4236_info_single, \
+  .get = snd_cs4236_get_single, .put = snd_cs4236_put_single, \
+  .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
+
+static int snd_cs4236_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+{
+	int mask = (kcontrol->private_value >> 16) & 0xff;
+
+	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = mask;
+	return 0;
+}
+
+static int snd_cs4236_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int reg = kcontrol->private_value & 0xff;
+	int shift = (kcontrol->private_value >> 8) & 0xff;
+	int mask = (kcontrol->private_value >> 16) & 0xff;
+	int invert = (kcontrol->private_value >> 24) & 0xff;
+	
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	ucontrol->value.integer.value[0] = (chip->eimage[CS4236_REG(reg)] >> shift) & mask;
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	if (invert)
+		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
+	return 0;
+}
+
+static int snd_cs4236_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int reg = kcontrol->private_value & 0xff;
+	int shift = (kcontrol->private_value >> 8) & 0xff;
+	int mask = (kcontrol->private_value >> 16) & 0xff;
+	int invert = (kcontrol->private_value >> 24) & 0xff;
+	int change;
+	unsigned short val;
+	
+	val = (ucontrol->value.integer.value[0] & mask);
+	if (invert)
+		val = mask - val;
+	val <<= shift;
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	val = (chip->eimage[CS4236_REG(reg)] & ~(mask << shift)) | val;
+	change = val != chip->eimage[CS4236_REG(reg)];
+	snd_cs4236_ext_out(chip, reg, val);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return change;
+}
+
+#define CS4236_SINGLEC(xname, xindex, reg, shift, mask, invert) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+  .info = snd_cs4236_info_single, \
+  .get = snd_cs4236_get_singlec, .put = snd_cs4236_put_singlec, \
+  .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
+
+static int snd_cs4236_get_singlec(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int reg = kcontrol->private_value & 0xff;
+	int shift = (kcontrol->private_value >> 8) & 0xff;
+	int mask = (kcontrol->private_value >> 16) & 0xff;
+	int invert = (kcontrol->private_value >> 24) & 0xff;
+	
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	ucontrol->value.integer.value[0] = (chip->cimage[reg] >> shift) & mask;
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	if (invert)
+		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
+	return 0;
+}
+
+static int snd_cs4236_put_singlec(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int reg = kcontrol->private_value & 0xff;
+	int shift = (kcontrol->private_value >> 8) & 0xff;
+	int mask = (kcontrol->private_value >> 16) & 0xff;
+	int invert = (kcontrol->private_value >> 24) & 0xff;
+	int change;
+	unsigned short val;
+	
+	val = (ucontrol->value.integer.value[0] & mask);
+	if (invert)
+		val = mask - val;
+	val <<= shift;
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	val = (chip->cimage[reg] & ~(mask << shift)) | val;
+	change = val != chip->cimage[reg];
+	snd_cs4236_ctrl_out(chip, reg, val);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return change;
+}
+
+#define CS4236_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+  .info = snd_cs4236_info_double, \
+  .get = snd_cs4236_get_double, .put = snd_cs4236_put_double, \
+  .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
+
+static int snd_cs4236_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+{
+	int mask = (kcontrol->private_value >> 24) & 0xff;
+
+	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = mask;
+	return 0;
+}
+
+static int snd_cs4236_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int left_reg = kcontrol->private_value & 0xff;
+	int right_reg = (kcontrol->private_value >> 8) & 0xff;
+	int shift_left = (kcontrol->private_value >> 16) & 0x07;
+	int shift_right = (kcontrol->private_value >> 19) & 0x07;
+	int mask = (kcontrol->private_value >> 24) & 0xff;
+	int invert = (kcontrol->private_value >> 22) & 1;
+	
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	ucontrol->value.integer.value[0] = (chip->eimage[CS4236_REG(left_reg)] >> shift_left) & mask;
+	ucontrol->value.integer.value[1] = (chip->eimage[CS4236_REG(right_reg)] >> shift_right) & mask;
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	if (invert) {
+		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
+		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
+	}
+	return 0;
+}
+
+static int snd_cs4236_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int left_reg = kcontrol->private_value & 0xff;
+	int right_reg = (kcontrol->private_value >> 8) & 0xff;
+	int shift_left = (kcontrol->private_value >> 16) & 0x07;
+	int shift_right = (kcontrol->private_value >> 19) & 0x07;
+	int mask = (kcontrol->private_value >> 24) & 0xff;
+	int invert = (kcontrol->private_value >> 22) & 1;
+	int change;
+	unsigned short val1, val2;
+	
+	val1 = ucontrol->value.integer.value[0] & mask;
+	val2 = ucontrol->value.integer.value[1] & mask;
+	if (invert) {
+		val1 = mask - val1;
+		val2 = mask - val2;
+	}
+	val1 <<= shift_left;
+	val2 <<= shift_right;
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	if (left_reg != right_reg) {
+		val1 = (chip->eimage[CS4236_REG(left_reg)] & ~(mask << shift_left)) | val1;
+		val2 = (chip->eimage[CS4236_REG(right_reg)] & ~(mask << shift_right)) | val2;
+		change = val1 != chip->eimage[CS4236_REG(left_reg)] || val2 != chip->eimage[CS4236_REG(right_reg)];
+		snd_cs4236_ext_out(chip, left_reg, val1);
+		snd_cs4236_ext_out(chip, right_reg, val2);
+	} else {
+		val1 = (chip->eimage[CS4236_REG(left_reg)] & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
+		change = val1 != chip->eimage[CS4236_REG(left_reg)];
+		snd_cs4236_ext_out(chip, left_reg, val1);
+	}
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return change;
+}
+
+#define CS4236_DOUBLE1(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+  .info = snd_cs4236_info_double, \
+  .get = snd_cs4236_get_double1, .put = snd_cs4236_put_double1, \
+  .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
+
+static int snd_cs4236_get_double1(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int left_reg = kcontrol->private_value & 0xff;
+	int right_reg = (kcontrol->private_value >> 8) & 0xff;
+	int shift_left = (kcontrol->private_value >> 16) & 0x07;
+	int shift_right = (kcontrol->private_value >> 19) & 0x07;
+	int mask = (kcontrol->private_value >> 24) & 0xff;
+	int invert = (kcontrol->private_value >> 22) & 1;
+	
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
+	ucontrol->value.integer.value[1] = (chip->eimage[CS4236_REG(right_reg)] >> shift_right) & mask;
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	if (invert) {
+		ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
+		ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
+	}
+	return 0;
+}
+
+static int snd_cs4236_put_double1(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int left_reg = kcontrol->private_value & 0xff;
+	int right_reg = (kcontrol->private_value >> 8) & 0xff;
+	int shift_left = (kcontrol->private_value >> 16) & 0x07;
+	int shift_right = (kcontrol->private_value >> 19) & 0x07;
+	int mask = (kcontrol->private_value >> 24) & 0xff;
+	int invert = (kcontrol->private_value >> 22) & 1;
+	int change;
+	unsigned short val1, val2;
+	
+	val1 = ucontrol->value.integer.value[0] & mask;
+	val2 = ucontrol->value.integer.value[1] & mask;
+	if (invert) {
+		val1 = mask - val1;
+		val2 = mask - val2;
+	}
+	val1 <<= shift_left;
+	val2 <<= shift_right;
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
+	val2 = (chip->eimage[CS4236_REG(right_reg)] & ~(mask << shift_right)) | val2;
+	change = val1 != chip->image[left_reg] || val2 != chip->eimage[CS4236_REG(right_reg)];
+	snd_cs4231_out(chip, left_reg, val1);
+	snd_cs4236_ext_out(chip, right_reg, val2);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return change;
+}
+
+#define CS4236_MASTER_DIGITAL(xname, xindex) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+  .info = snd_cs4236_info_double, \
+  .get = snd_cs4236_get_master_digital, .put = snd_cs4236_put_master_digital, \
+  .private_value = 71 << 24 }
+
+static inline int snd_cs4236_mixer_master_digital_invert_volume(int vol)
+{
+	return (vol < 64) ? 63 - vol : 64 + (71 - vol);
+}        
+
+static int snd_cs4236_get_master_digital(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	ucontrol->value.integer.value[0] = snd_cs4236_mixer_master_digital_invert_volume(chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] & 0x7f);
+	ucontrol->value.integer.value[1] = snd_cs4236_mixer_master_digital_invert_volume(chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)] & 0x7f);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return 0;
+}
+
+static int snd_cs4236_put_master_digital(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int change;
+	unsigned short val1, val2;
+	
+	val1 = snd_cs4236_mixer_master_digital_invert_volume(ucontrol->value.integer.value[0] & 0x7f);
+	val2 = snd_cs4236_mixer_master_digital_invert_volume(ucontrol->value.integer.value[1] & 0x7f);
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	val1 = (chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] & ~0x7f) | val1;
+	val2 = (chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)] & ~0x7f) | val2;
+	change = val1 != chip->eimage[CS4236_REG(CS4236_LEFT_MASTER)] || val2 != chip->eimage[CS4236_REG(CS4236_RIGHT_MASTER)];
+	snd_cs4236_ext_out(chip, CS4236_LEFT_MASTER, val1);
+	snd_cs4236_ext_out(chip, CS4236_RIGHT_MASTER, val1);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return change;
+}
+
+#define CS4235_OUTPUT_ACCU(xname, xindex) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+  .info = snd_cs4236_info_double, \
+  .get = snd_cs4235_get_output_accu, .put = snd_cs4235_put_output_accu, \
+  .private_value = 3 << 24 }
+
+static inline int snd_cs4235_mixer_output_accu_get_volume(int vol)
+{
+	switch ((vol >> 5) & 3) {
+	case 0: return 1;
+	case 1: return 3;
+	case 2: return 2;
+	case 3: return 0;
+ 	}
+	return 3;
+}
+
+static inline int snd_cs4235_mixer_output_accu_set_volume(int vol)
+{
+	switch (vol & 3) {
+	case 0: return 3 << 5;
+	case 1: return 0 << 5;
+	case 2: return 2 << 5;
+	case 3: return 1 << 5;
+	}
+	return 1 << 5;
+}
+
+static int snd_cs4235_get_output_accu(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	ucontrol->value.integer.value[0] = snd_cs4235_mixer_output_accu_get_volume(chip->image[CS4235_LEFT_MASTER]);
+	ucontrol->value.integer.value[1] = snd_cs4235_mixer_output_accu_get_volume(chip->image[CS4235_RIGHT_MASTER]);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return 0;
+}
+
+static int snd_cs4235_put_output_accu(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int change;
+	unsigned short val1, val2;
+	
+	val1 = snd_cs4235_mixer_output_accu_set_volume(ucontrol->value.integer.value[0]);
+	val2 = snd_cs4235_mixer_output_accu_set_volume(ucontrol->value.integer.value[1]);
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	val1 = (chip->image[CS4235_LEFT_MASTER] & ~(3 << 5)) | val1;
+	val2 = (chip->image[CS4235_RIGHT_MASTER] & ~(3 << 5)) | val2;
+	change = val1 != chip->image[CS4235_LEFT_MASTER] || val2 != chip->image[CS4235_RIGHT_MASTER];
+	snd_cs4231_out(chip, CS4235_LEFT_MASTER, val1);
+	snd_cs4231_out(chip, CS4235_RIGHT_MASTER, val2);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return change;
+}
+
+static snd_kcontrol_new_t snd_cs4236_controls[] = {
+
+CS4236_DOUBLE("Master Digital Playback Switch", 0, CS4236_LEFT_MASTER, CS4236_RIGHT_MASTER, 7, 7, 1, 1),
+CS4236_DOUBLE("Master Digital Capture Switch", 0, CS4236_DAC_MUTE, CS4236_DAC_MUTE, 7, 6, 1, 1),
+CS4236_MASTER_DIGITAL("Master Digital Volume", 0),
+
+CS4236_DOUBLE("Capture Boost Volume", 0, CS4236_LEFT_MIX_CTRL, CS4236_RIGHT_MIX_CTRL, 5, 5, 3, 1),
+
+CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
+CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
+
+CS4236_DOUBLE("DSP Playback Switch", 0, CS4236_LEFT_DSP, CS4236_RIGHT_DSP, 7, 7, 1, 1),
+CS4236_DOUBLE("DSP Playback Volume", 0, CS4236_LEFT_DSP, CS4236_RIGHT_DSP, 0, 0, 63, 1),
+
+CS4236_DOUBLE("FM Playback Switch", 0, CS4236_LEFT_FM, CS4236_RIGHT_FM, 7, 7, 1, 1),
+CS4236_DOUBLE("FM Playback Volume", 0, CS4236_LEFT_FM, CS4236_RIGHT_FM, 0, 0, 63, 1),
+
+CS4236_DOUBLE("Wavetable Playback Switch", 0, CS4236_LEFT_WAVE, CS4236_RIGHT_WAVE, 7, 7, 1, 1),
+CS4236_DOUBLE("Wavetable Playback Volume", 0, CS4236_LEFT_WAVE, CS4236_RIGHT_WAVE, 0, 0, 63, 1),
+
+CS4231_DOUBLE("Synth Playback Switch", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
+CS4231_DOUBLE("Synth Volume", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
+CS4231_DOUBLE("Synth Capture Switch", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 6, 6, 1, 1),
+CS4231_DOUBLE("Synth Capture Bypass", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 5, 5, 1, 1),
+
+CS4236_DOUBLE("Mic Playback Switch", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 6, 6, 1, 1),
+CS4236_DOUBLE("Mic Capture Switch", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 7, 7, 1, 1),
+CS4236_DOUBLE("Mic Volume", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 0, 0, 31, 1),
+CS4236_DOUBLE("Mic Playback Boost", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 5, 5, 1, 0),
+
+CS4231_DOUBLE("Line Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
+CS4231_DOUBLE("Line Volume", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
+CS4231_DOUBLE("Line Capture Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 6, 6, 1, 1),
+CS4231_DOUBLE("Line Capture Bypass", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 5, 5, 1, 1),
+
+CS4231_DOUBLE("CD Playback Switch", 0, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
+CS4231_DOUBLE("CD Volume", 0, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
+CS4231_DOUBLE("CD Capture Switch", 0, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 6, 6, 1, 1),
+
+CS4236_DOUBLE1("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, CS4236_RIGHT_MIX_CTRL, 6, 7, 1, 1),
+CS4236_DOUBLE1("Mono Playback Switch", 0, CS4231_MONO_CTRL, CS4236_LEFT_MIX_CTRL, 7, 7, 1, 1),
+CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
+CS4231_SINGLE("Mono Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0),
+
+CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 15, 0),
+CS4231_DOUBLE("Analog Loopback Capture Switch", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 7, 7, 1, 0),
+
+CS4231_SINGLE("Digital Loopback Playback Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
+CS4236_DOUBLE1("Digital Loopback Playback Volume", 0, CS4231_LOOPBACK, CS4236_RIGHT_LOOPBACK, 2, 0, 63, 1)
+};
+
+static snd_kcontrol_new_t snd_cs4235_controls[] = {
+
+CS4231_DOUBLE("Master Switch", 0, CS4235_LEFT_MASTER, CS4235_RIGHT_MASTER, 7, 7, 1, 1),
+CS4231_DOUBLE("Master Volume", 0, CS4235_LEFT_MASTER, CS4235_RIGHT_MASTER, 0, 0, 31, 1),
+
+CS4235_OUTPUT_ACCU("Playback Volume", 0),
+
+CS4236_DOUBLE("Master Digital Playback Switch", 0, CS4236_LEFT_MASTER, CS4236_RIGHT_MASTER, 7, 7, 1, 1),
+CS4236_DOUBLE("Master Digital Capture Switch", 0, CS4236_DAC_MUTE, CS4236_DAC_MUTE, 7, 6, 1, 1),
+CS4236_MASTER_DIGITAL("Master Digital Volume", 0),
+
+CS4231_DOUBLE("Master Digital Playback Switch", 1, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
+CS4231_DOUBLE("Master Digital Capture Switch", 1, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 6, 6, 1, 1),
+CS4231_DOUBLE("Master Digital Volume", 1, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
+
+CS4236_DOUBLE("Capture Volume", 0, CS4236_LEFT_MIX_CTRL, CS4236_RIGHT_MIX_CTRL, 5, 5, 3, 1),
+
+CS4231_DOUBLE("PCM Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
+CS4231_DOUBLE("PCM Volume", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
+
+CS4236_DOUBLE("DSP Switch", 0, CS4236_LEFT_DSP, CS4236_RIGHT_DSP, 7, 7, 1, 1),
+
+CS4236_DOUBLE("FM Switch", 0, CS4236_LEFT_FM, CS4236_RIGHT_FM, 7, 7, 1, 1),
+
+CS4236_DOUBLE("Wavetable Switch", 0, CS4236_LEFT_WAVE, CS4236_RIGHT_WAVE, 7, 7, 1, 1),
+
+CS4236_DOUBLE("Mic Capture Switch", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 7, 7, 1, 1),
+CS4236_DOUBLE("Mic Playback Switch", 0, CS4236_LEFT_MIC, CS4236_RIGHT_MIC, 6, 6, 1, 1),
+CS4236_SINGLE("Mic Volume", 0, CS4236_LEFT_MIC, 0, 31, 1),
+CS4236_SINGLE("Mic Playback Boost", 0, CS4236_LEFT_MIC, 5, 1, 0),
+
+CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
+CS4231_DOUBLE("Aux Capture Switch", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 6, 6, 1, 1),
+CS4231_DOUBLE("Aux Volume", 0, CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
+
+CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
+CS4231_DOUBLE("Aux Capture Switch", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 6, 6, 1, 1),
+CS4231_DOUBLE("Aux Volume", 1, CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
+
+CS4236_DOUBLE1("Master Mono Switch", 0, CS4231_MONO_CTRL, CS4236_RIGHT_MIX_CTRL, 6, 7, 1, 1),
+
+CS4236_DOUBLE1("Mono Switch", 0, CS4231_MONO_CTRL, CS4236_LEFT_MIX_CTRL, 7, 7, 1, 1),
+CS4231_SINGLE("Mono Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
+
+CS4231_DOUBLE("Analog Loopback Switch", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 7, 7, 1, 0),
+};
+
+#define CS4236_IEC958_ENABLE(xname, xindex) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+  .info = snd_cs4236_info_single, \
+  .get = snd_cs4236_get_iec958_switch, .put = snd_cs4236_put_iec958_switch, \
+  .private_value = 1 << 16 }
+
+static int snd_cs4236_get_iec958_switch(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	ucontrol->value.integer.value[0] = chip->image[CS4231_ALT_FEATURE_1] & 0x02 ? 1 : 0;
+#if 0
+	printk("get valid: ALT = 0x%x, C3 = 0x%x, C4 = 0x%x, C5 = 0x%x, C6 = 0x%x, C8 = 0x%x\n",
+			snd_cs4231_in(chip, CS4231_ALT_FEATURE_1),
+			snd_cs4236_ctrl_in(chip, 3),
+			snd_cs4236_ctrl_in(chip, 4),
+			snd_cs4236_ctrl_in(chip, 5),
+			snd_cs4236_ctrl_in(chip, 6),
+			snd_cs4236_ctrl_in(chip, 8));
+#endif
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return 0;
+}
+
+static int snd_cs4236_put_iec958_switch(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int change;
+	unsigned short enable, val;
+	
+	enable = ucontrol->value.integer.value[0] & 1;
+
+	down(&chip->mce_mutex);
+	snd_cs4231_mce_up(chip);
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	val = (chip->image[CS4231_ALT_FEATURE_1] & ~0x0e) | (0<<2) | (enable << 1);
+	change = val != chip->image[CS4231_ALT_FEATURE_1];
+	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, val);
+	val = snd_cs4236_ctrl_in(chip, 4) | 0xc0;
+	snd_cs4236_ctrl_out(chip, 4, val);
+	udelay(100);
+	val &= ~0x40;
+	snd_cs4236_ctrl_out(chip, 4, val);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	snd_cs4231_mce_down(chip);
+	up(&chip->mce_mutex);
+
+#if 0
+	printk("set valid: ALT = 0x%x, C3 = 0x%x, C4 = 0x%x, C5 = 0x%x, C6 = 0x%x, C8 = 0x%x\n",
+			snd_cs4231_in(chip, CS4231_ALT_FEATURE_1),
+			snd_cs4236_ctrl_in(chip, 3),
+			snd_cs4236_ctrl_in(chip, 4),
+			snd_cs4236_ctrl_in(chip, 5),
+			snd_cs4236_ctrl_in(chip, 6),
+			snd_cs4236_ctrl_in(chip, 8));
+#endif
+	return change;
+}
+
+static snd_kcontrol_new_t snd_cs4236_iec958_controls[] = {
+CS4236_IEC958_ENABLE("IEC958 Output Enable", 0),
+CS4236_SINGLEC("IEC958 Output Validity", 0, 4, 4, 1, 0),
+CS4236_SINGLEC("IEC958 Output User", 0, 4, 5, 1, 0),
+CS4236_SINGLEC("IEC958 Output CSBR", 0, 4, 6, 1, 0),
+CS4236_SINGLEC("IEC958 Output Channel Status Low", 0, 5, 1, 127, 0),
+CS4236_SINGLEC("IEC958 Output Channel Status High", 0, 6, 0, 255, 0)
+};
+
+static snd_kcontrol_new_t snd_cs4236_3d_controls_cs4235[] = {
+CS4236_SINGLEC("3D Control - Switch", 0, 3, 4, 1, 0),
+CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1)
+};
+
+static snd_kcontrol_new_t snd_cs4236_3d_controls_cs4237[] = {
+CS4236_SINGLEC("3D Control - Switch", 0, 3, 7, 1, 0),
+CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1),
+CS4236_SINGLEC("3D Control - Center", 0, 2, 0, 15, 1),
+CS4236_SINGLEC("3D Control - Mono", 0, 3, 6, 1, 0),
+CS4236_SINGLEC("3D Control - IEC958", 0, 3, 5, 1, 0)
+};
+
+static snd_kcontrol_new_t snd_cs4236_3d_controls_cs4238[] = {
+CS4236_SINGLEC("3D Control - Switch", 0, 3, 4, 1, 0),
+CS4236_SINGLEC("3D Control - Space", 0, 2, 4, 15, 1),
+CS4236_SINGLEC("3D Control - Volume", 0, 2, 0, 15, 1),
+CS4236_SINGLEC("3D Control - IEC958", 0, 3, 5, 1, 0)
+};
+
+int snd_cs4236_mixer(cs4231_t *chip)
+{
+	snd_card_t *card;
+	unsigned int idx, count;
+	int err;
+	snd_kcontrol_new_t *kcontrol;
+
+	snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
+	card = chip->card;
+	strcpy(card->mixername, snd_cs4231_chip_id(chip));
+
+	if (chip->hardware == CS4231_HW_CS4235 ||
+	    chip->hardware == CS4231_HW_CS4239) {
+		for (idx = 0; idx < ARRAY_SIZE(snd_cs4235_controls); idx++) {
+			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4235_controls[idx], chip))) < 0)
+				return err;
+		}
+	} else {
+		for (idx = 0; idx < ARRAY_SIZE(snd_cs4236_controls); idx++) {
+			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4236_controls[idx], chip))) < 0)
+				return err;
+		}
+	}
+	switch (chip->hardware) {
+	case CS4231_HW_CS4235:
+	case CS4231_HW_CS4239:
+		count = ARRAY_SIZE(snd_cs4236_3d_controls_cs4235);
+		kcontrol = snd_cs4236_3d_controls_cs4235;
+		break;
+	case CS4231_HW_CS4237B:
+		count = ARRAY_SIZE(snd_cs4236_3d_controls_cs4237);
+		kcontrol = snd_cs4236_3d_controls_cs4237;
+		break;
+	case CS4231_HW_CS4238B:
+		count = ARRAY_SIZE(snd_cs4236_3d_controls_cs4238);
+		kcontrol = snd_cs4236_3d_controls_cs4238;
+		break;
+	default:
+		count = 0;
+		kcontrol = NULL;
+	}
+	for (idx = 0; idx < count; idx++, kcontrol++) {
+		if ((err = snd_ctl_add(card, snd_ctl_new1(kcontrol, chip))) < 0)
+			return err;
+	}
+	if (chip->hardware == CS4231_HW_CS4237B ||
+	    chip->hardware == CS4231_HW_CS4238B) {
+		for (idx = 0; idx < ARRAY_SIZE(snd_cs4236_iec958_controls); idx++) {
+			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4236_iec958_controls[idx], chip))) < 0)
+				return err;
+		}
+	}
+	return 0;
+}
+
+EXPORT_SYMBOL(snd_cs4236_create);
+EXPORT_SYMBOL(snd_cs4236_pcm);
+EXPORT_SYMBOL(snd_cs4236_mixer);
+
+/*
+ *  INIT part
+ */
+
+static int __init alsa_cs4236_init(void)
+{
+	return 0;
+}
+
+static void __exit alsa_cs4236_exit(void)
+{
+}
+
+module_init(alsa_cs4236_init)
+module_exit(alsa_cs4236_exit)
author	Linus Torvalds	2005-04-16 15:20:36 -0700
committer	Linus Torvalds	2005-04-16 15:20:36 -0700
commit	1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree	0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/isa/cs423x