Linux-2.6.12-rc2v2.6.12-rc2

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

Let it rip!

1 files changed, 3733 insertions, 0 deletions

diff --git a/sound/oss/ali5455.c b/sound/oss/ali5455.c
new file mode 100644
index 00000000000..9c9e6c0410f
--- /dev/null
+++ b/sound/oss/ali5455.c
@@ -0,0 +1,3733 @@
+/*
+ *	ALI  ali5455 and friends ICH driver for Linux
+ *	LEI HU <Lei_Hu@ali.com.tw>
+ *
+ *  Built from:
+ *	drivers/sound/i810_audio
+ *
+ *  	The ALi 5455 is similar but not quite identical to the Intel ICH
+ *	series of controllers. Its easier to keep the driver separated from
+ *	the i810 driver.
+ *
+ *	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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ *	ALi 5455 theory of operation
+ *
+ *	The chipset provides three DMA channels that talk to an AC97
+ *	CODEC (AC97 is a digital/analog mixer standard). At its simplest
+ *	you get 48Khz audio with basic volume and mixer controls. At the
+ *	best you get rate adaption in the codec. We set the card up so
+ *	that we never take completion interrupts but instead keep the card
+ *	chasing its tail around a ring buffer. This is needed for mmap
+ *	mode audio and happens to work rather well for non-mmap modes too.
+ *
+ *	The board has one output channel for PCM audio (supported) and
+ *	a stereo line in and mono microphone input. Again these are normally
+ *	locked to 48Khz only. Right now recording is not finished.
+ *
+ *	There is no midi support, no synth support. Use timidity. To get
+ *	esd working you need to use esd -r 48000 as it won't probe 48KHz
+ *	by default. mpg123 can't handle 48Khz only audio so use xmms.
+ *
+ *	If you need to force a specific rate set the clocking= option
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
+#include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/sound.h>
+#include <linux/slab.h>
+#include <linux/soundcard.h>
+#include <linux/pci.h>
+#include <asm/io.h>
+#include <asm/dma.h>
+#include <linux/init.h>
+#include <linux/poll.h>
+#include <linux/spinlock.h>
+#include <linux/smp_lock.h>
+#include <linux/ac97_codec.h>
+#include <linux/interrupt.h>
+#include <asm/uaccess.h>
+
+#ifndef PCI_DEVICE_ID_ALI_5455
+#define PCI_DEVICE_ID_ALI_5455	0x5455
+#endif
+
+#ifndef PCI_VENDOR_ID_ALI
+#define PCI_VENDOR_ID_ALI	0x10b9
+#endif
+
+static int strict_clocking = 0;
+static unsigned int clocking = 0;
+static unsigned int codec_pcmout_share_spdif_locked = 0;
+static unsigned int codec_independent_spdif_locked = 0;
+static unsigned int controller_pcmout_share_spdif_locked = 0;
+static unsigned int controller_independent_spdif_locked = 0;
+static unsigned int globel = 0;
+
+#define ADC_RUNNING	1
+#define DAC_RUNNING	2
+#define CODEC_SPDIFOUT_RUNNING 8
+#define CONTROLLER_SPDIFOUT_RUNNING 4
+
+#define SPDIF_ENABLE_OUTPUT	4	/* bits 0,1 are PCM */
+
+#define ALI5455_FMT_16BIT	1
+#define ALI5455_FMT_STEREO	2
+#define ALI5455_FMT_MASK	3
+
+#define SPDIF_ON	0x0004
+#define SURR_ON		0x0010
+#define CENTER_LFE_ON	0x0020
+#define VOL_MUTED	0x8000
+
+
+#define ALI_SPDIF_OUT_CH_STATUS 0xbf
+/* the 810's array of pointers to data buffers */
+
+struct sg_item {
+#define BUSADDR_MASK	0xFFFFFFFE
+	u32 busaddr;
+#define CON_IOC 	0x80000000	/* interrupt on completion */
+#define CON_BUFPAD	0x40000000	/* pad underrun with last sample, else 0 */
+#define CON_BUFLEN_MASK	0x0000ffff	/* buffer length in samples */
+	u32 control;
+};
+
+/* an instance of the ali channel */
+#define SG_LEN 32
+struct ali_channel {
+	/* these sg guys should probably be allocated
+	   separately as nocache. Must be 8 byte aligned */
+	struct sg_item sg[SG_LEN];	/* 32*8 */
+	u32 offset;		/* 4 */
+	u32 port;		/* 4 */
+	u32 used;
+	u32 num;
+};
+
+/*
+ * we have 3 separate dma engines.  pcm in, pcm out, and mic.
+ * each dma engine has controlling registers.  These goofy
+ * names are from the datasheet, but make it easy to write
+ * code while leafing through it.
+ */
+
+#define ENUM_ENGINE(PRE,DIG) 									\
+enum {												\
+	PRE##_BDBAR =	0x##DIG##0,		/* Buffer Descriptor list Base Address */	\
+	PRE##_CIV =	0x##DIG##4,		/* Current Index Value */			\
+	PRE##_LVI =	0x##DIG##5,		/* Last Valid Index */				\
+	PRE##_SR =	0x##DIG##6,		/* Status Register */				\
+	PRE##_PICB =	0x##DIG##8,		/* Position In Current Buffer */		\
+	PRE##_CR =	0x##DIG##b		/* Control Register */				\
+}
+
+ENUM_ENGINE(OFF, 0);		/* Offsets */
+ENUM_ENGINE(PI, 4);		/* PCM In */
+ENUM_ENGINE(PO, 5);		/* PCM Out */
+ENUM_ENGINE(MC, 6);		/* Mic In */
+ENUM_ENGINE(CODECSPDIFOUT, 7);	/* CODEC SPDIF OUT  */
+ENUM_ENGINE(CONTROLLERSPDIFIN, A);	/* CONTROLLER SPDIF In */
+ENUM_ENGINE(CONTROLLERSPDIFOUT, B);	/* CONTROLLER SPDIF OUT */
+
+
+enum {
+	ALI_SCR = 0x00,		/* System Control Register */
+	ALI_SSR = 0x04,		/* System Status Register  */
+	ALI_DMACR = 0x08,	/* DMA Control Register    */
+	ALI_FIFOCR1 = 0x0c,	/* FIFO Control Register 1  */
+	ALI_INTERFACECR = 0x10,	/* Interface Control Register */
+	ALI_INTERRUPTCR = 0x14,	/* Interrupt control Register */
+	ALI_INTERRUPTSR = 0x18,	/* Interrupt  Status Register */
+	ALI_FIFOCR2 = 0x1c,	/* FIFO Control Register 2   */
+	ALI_CPR = 0x20,		/* Command Port Register     */
+	ALI_SPR = 0x24,		/* Status Port Register      */
+	ALI_FIFOCR3 = 0x2c,	/* FIFO Control Register 3  */
+	ALI_TTSR = 0x30,	/* Transmit Tag Slot Register */
+	ALI_RTSR = 0x34,	/* Receive Tag Slot  Register */
+	ALI_CSPSR = 0x38,	/* Command/Status Port Status Register */
+	ALI_CAS = 0x3c,		/* Codec Write Semaphore Register */
+	ALI_SPDIFCSR = 0xf8,	/* spdif channel status register  */
+	ALI_SPDIFICS = 0xfc	/* spdif interface control/status  */
+};
+
+// x-status register(x:pcm in ,pcm out, mic in,)
+/* interrupts for a dma engine */
+#define DMA_INT_FIFO		(1<<4)	/* fifo under/over flow */
+#define DMA_INT_COMPLETE	(1<<3)	/* buffer read/write complete and ioc set */
+#define DMA_INT_LVI		(1<<2)	/* last valid done */
+#define DMA_INT_CELV		(1<<1)	/* last valid is current */
+#define DMA_INT_DCH		(1)	/* DMA Controller Halted (happens on LVI interrupts) */	//not eqult intel
+#define DMA_INT_MASK (DMA_INT_FIFO|DMA_INT_COMPLETE|DMA_INT_LVI)
+
+/* interrupts for the whole chip */// by interrupt status register finish
+
+#define INT_SPDIFOUT   (1<<23)	/* controller spdif out INTERRUPT */
+#define INT_SPDIFIN   (1<<22)
+#define INT_CODECSPDIFOUT   (1<<19)
+#define INT_MICIN   (1<<18)
+#define INT_PCMOUT   (1<<17)
+#define INT_PCMIN   (1<<16)
+#define INT_CPRAIS   (1<<7)
+#define INT_SPRAIS   (1<<5)
+#define INT_GPIO    (1<<1)
+#define INT_MASK   (INT_SPDIFOUT|INT_CODECSPDIFOUT|INT_MICIN|INT_PCMOUT|INT_PCMIN)
+
+#define DRIVER_VERSION "0.02ac"
+
+/* magic numbers to protect our data structures */
+#define ALI5455_CARD_MAGIC		0x5072696E	/* "Prin" */
+#define ALI5455_STATE_MAGIC		0x63657373	/* "cess" */
+#define ALI5455_DMA_MASK		0xffffffff	/* DMA buffer mask for pci_alloc_consist */
+#define NR_HW_CH			5	//I think 5 channel
+
+/* maxinum number of AC97 codecs connected, AC97 2.0 defined 4 */
+#define NR_AC97		2
+
+/* Please note that an 8bit mono stream is not valid on this card, you must have a 16bit */
+/* stream at a minimum for this card to be happy */
+static const unsigned sample_size[] = { 1, 2, 2, 4 };
+/* Samples are 16bit values, so we are shifting to a word, not to a byte, hence shift */
+/* values are one less than might be expected */
+static const unsigned sample_shift[] = { -1, 0, 0, 1 };
+
+#define ALI5455
+static char *card_names[] = {
+	"ALI 5455"
+};
+
+static struct pci_device_id ali_pci_tbl[] = {
+	{PCI_VENDOR_ID_ALI, PCI_DEVICE_ID_ALI_5455,
+	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, ALI5455},
+	{0,}
+};
+
+MODULE_DEVICE_TABLE(pci, ali_pci_tbl);
+
+#ifdef CONFIG_PM
+#define PM_SUSPENDED(card) (card->pm_suspended)
+#else
+#define PM_SUSPENDED(card) (0)
+#endif
+
+/* "software" or virtual channel, an instance of opened /dev/dsp */
+struct ali_state {
+	unsigned int magic;
+	struct ali_card *card;	/* Card info */
+
+	/* single open lock mechanism, only used for recording */
+	struct semaphore open_sem;
+	wait_queue_head_t open_wait;
+
+	/* file mode */
+	mode_t open_mode;
+
+	/* virtual channel number */
+	int virt;
+
+#ifdef CONFIG_PM
+	unsigned int pm_saved_dac_rate, pm_saved_adc_rate;
+#endif
+	struct dmabuf {
+		/* wave sample stuff */
+		unsigned int rate;
+		unsigned char fmt, enable, trigger;
+
+		/* hardware channel */
+		struct ali_channel *read_channel;
+		struct ali_channel *write_channel;
+		struct ali_channel *codec_spdifout_channel;
+		struct ali_channel *controller_spdifout_channel;
+
+		/* OSS buffer management stuff */
+		void *rawbuf;
+		dma_addr_t dma_handle;
+		unsigned buforder;
+		unsigned numfrag;
+		unsigned fragshift;
+
+		/* our buffer acts like a circular ring */
+		unsigned hwptr;	/* where dma last started, updated by update_ptr */
+		unsigned swptr;	/* where driver last clear/filled, updated by read/write */
+		int count;	/* bytes to be consumed or been generated by dma machine */
+		unsigned total_bytes;	/* total bytes dmaed by hardware */
+
+		unsigned error;	/* number of over/underruns */
+		wait_queue_head_t wait;	/* put process on wait queue when no more space in buffer */
+
+		/* redundant, but makes calculations easier */
+		/* what the hardware uses */
+		unsigned dmasize;
+		unsigned fragsize;
+		unsigned fragsamples;
+
+		/* what we tell the user to expect */
+		unsigned userfrags;
+		unsigned userfragsize;
+
+		/* OSS stuff */
+		unsigned mapped:1;
+		unsigned ready:1;
+		unsigned update_flag;
+		unsigned ossfragsize;
+		unsigned ossmaxfrags;
+		unsigned subdivision;
+	} dmabuf;
+};
+
+
+struct ali_card {
+	struct ali_channel channel[5];
+	unsigned int magic;
+
+	/* We keep ali5455 cards in a linked list */
+	struct ali_card *next;
+
+	/* The ali has a certain amount of cross channel interaction
+	   so we use a single per card lock */
+	spinlock_t lock;
+	spinlock_t ac97_lock;
+
+	/* PCI device stuff */
+	struct pci_dev *pci_dev;
+	u16 pci_id;
+#ifdef CONFIG_PM
+	u16 pm_suspended;
+	int pm_saved_mixer_settings[SOUND_MIXER_NRDEVICES][NR_AC97];
+#endif
+	/* soundcore stuff */
+	int dev_audio;
+
+	/* structures for abstraction of hardware facilities, codecs, banks and channels */
+	struct ac97_codec *ac97_codec[NR_AC97];
+	struct ali_state *states[NR_HW_CH];
+
+	u16 ac97_features;
+	u16 ac97_status;
+	u16 channels;
+
+	/* hardware resources */
+	unsigned long iobase;
+
+	u32 irq;
+
+	/* Function support */
+	struct ali_channel *(*alloc_pcm_channel) (struct ali_card *);
+	struct ali_channel *(*alloc_rec_pcm_channel) (struct ali_card *);
+	struct ali_channel *(*alloc_rec_mic_channel) (struct ali_card *);
+	struct ali_channel *(*alloc_codec_spdifout_channel) (struct ali_card *);
+	struct ali_channel *(*alloc_controller_spdifout_channel) (struct  ali_card *);
+	void (*free_pcm_channel) (struct ali_card *, int chan);
+
+	/* We have a *very* long init time possibly, so use this to block */
+	/* attempts to open our devices before we are ready (stops oops'es) */
+	int initializing;
+};
+
+
+static struct ali_card *devs = NULL;
+
+static int ali_open_mixdev(struct inode *inode, struct file *file);
+static int ali_ioctl_mixdev(struct inode *inode, struct file *file,
+			    unsigned int cmd, unsigned long arg);
+static u16 ali_ac97_get(struct ac97_codec *dev, u8 reg);
+static void ali_ac97_set(struct ac97_codec *dev, u8 reg, u16 data);
+
+static struct ali_channel *ali_alloc_pcm_channel(struct ali_card *card)
+{
+	if (card->channel[1].used == 1)
+		return NULL;
+	card->channel[1].used = 1;
+	return &card->channel[1];
+}
+
+static struct ali_channel *ali_alloc_rec_pcm_channel(struct ali_card *card)
+{
+	if (card->channel[0].used == 1)
+		return NULL;
+	card->channel[0].used = 1;
+	return &card->channel[0];
+}
+
+static struct ali_channel *ali_alloc_rec_mic_channel(struct ali_card *card)
+{
+	if (card->channel[2].used == 1)
+		return NULL;
+	card->channel[2].used = 1;
+	return &card->channel[2];
+}
+
+static struct ali_channel *ali_alloc_codec_spdifout_channel(struct ali_card *card)
+{
+	if (card->channel[3].used == 1)
+		return NULL;
+	card->channel[3].used = 1;
+	return &card->channel[3];
+}
+
+static struct ali_channel *ali_alloc_controller_spdifout_channel(struct ali_card *card)
+{
+	if (card->channel[4].used == 1)
+		return NULL;
+	card->channel[4].used = 1;
+	return &card->channel[4];
+}
+static void ali_free_pcm_channel(struct ali_card *card, int channel)
+{
+	card->channel[channel].used = 0;
+}
+
+
+//add support  codec spdif out 
+static int ali_valid_spdif_rate(struct ac97_codec *codec, int rate)
+{
+	unsigned long id = 0L;
+
+	id = (ali_ac97_get(codec, AC97_VENDOR_ID1) << 16);
+	id |= ali_ac97_get(codec, AC97_VENDOR_ID2) & 0xffff;
+	switch (id) {
+	case 0x41445361:	/* AD1886 */
+		if (rate == 48000) {
+			return 1;
+		}
+		break;
+	case 0x414c4720:	/* ALC650 */
+		if (rate == 48000) {
+			return 1;
+		}
+		break;
+	default:		/* all other codecs, until we know otherwiae */
+		if (rate == 48000 || rate == 44100 || rate == 32000) {
+			return 1;
+		}
+		break;
+	}
+	return (0);
+}
+
+/* ali_set_spdif_output
+ * 
+ *  Configure the S/PDIF output transmitter. When we turn on
+ *  S/PDIF, we turn off the analog output. This may not be
+ *  the right thing to do.
+ *
+ *  Assumptions:
+ *     The DSP sample rate must already be set to a supported
+ *     S/PDIF rate (32kHz, 44.1kHz, or 48kHz) or we abort.
+ */
+static void ali_set_spdif_output(struct ali_state *state, int slots,
+				 int rate)
+{
+	int vol;
+	int aud_reg;
+	struct ac97_codec *codec = state->card->ac97_codec[0];
+
+	if (!(state->card->ac97_features & 4)) {
+		state->card->ac97_status &= ~SPDIF_ON;
+	} else {
+		if (slots == -1) {	/* Turn off S/PDIF */
+			aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS);
+			ali_ac97_set(codec, AC97_EXTENDED_STATUS, (aud_reg & ~AC97_EA_SPDIF));
+
+			/* If the volume wasn't muted before we turned on S/PDIF, unmute it */
+			if (!(state->card->ac97_status & VOL_MUTED)) {
+				aud_reg = ali_ac97_get(codec, AC97_MASTER_VOL_STEREO);
+				ali_ac97_set(codec, AC97_MASTER_VOL_STEREO,
+					     (aud_reg & ~VOL_MUTED));
+			}
+			state->card->ac97_status &= ~(VOL_MUTED | SPDIF_ON);
+			return;
+		}
+
+		vol = ali_ac97_get(codec, AC97_MASTER_VOL_STEREO);
+		state->card->ac97_status = vol & VOL_MUTED;
+
+		/* Set S/PDIF transmitter sample rate */
+		aud_reg = ali_ac97_get(codec, AC97_SPDIF_CONTROL);
+		switch (rate) {
+		case 32000:
+			aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_32K;
+			break;
+		case 44100:
+			aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_44K;
+			break;
+		case 48000:
+			aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_48K;
+			break;
+		default:
+			/* turn off S/PDIF */
+			aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS);
+			ali_ac97_set(codec, AC97_EXTENDED_STATUS, (aud_reg & ~AC97_EA_SPDIF));
+			state->card->ac97_status &= ~SPDIF_ON;
+			return;
+		}
+
+		ali_ac97_set(codec, AC97_SPDIF_CONTROL, aud_reg);
+
+		aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS);
+		aud_reg = (aud_reg & AC97_EA_SLOT_MASK) | slots | AC97_EA_SPDIF;
+		ali_ac97_set(codec, AC97_EXTENDED_STATUS, aud_reg);
+
+		aud_reg = ali_ac97_get(codec, AC97_POWER_CONTROL);
+		aud_reg |= 0x0002;
+		ali_ac97_set(codec, AC97_POWER_CONTROL, aud_reg);
+		udelay(1);
+
+		state->card->ac97_status |= SPDIF_ON;
+
+		/* Check to make sure the configuration is valid */
+		aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS);
+		if (!(aud_reg & 0x0400)) {
+			/* turn off S/PDIF */
+			ali_ac97_set(codec, AC97_EXTENDED_STATUS, (aud_reg & ~AC97_EA_SPDIF));
+			state->card->ac97_status &= ~SPDIF_ON;
+			return;
+		}
+		if (codec_independent_spdif_locked > 0) {
+			aud_reg = ali_ac97_get(codec, 0x6a);
+			ali_ac97_set(codec, 0x6a, (aud_reg & 0xefff));
+		}
+		/* Mute the analog output */
+		/* Should this only mute the PCM volume??? */
+	}
+}
+
+/* ali_set_dac_channels
+ *
+ *  Configure the codec's multi-channel DACs
+ *
+ *  The logic is backwards. Setting the bit to 1 turns off the DAC. 
+ *
+ *  What about the ICH? We currently configure it using the
+ *  SNDCTL_DSP_CHANNELS ioctl.  If we're turnning on the DAC, 
+ *  does that imply that we want the ICH set to support
+ *  these channels?
+ *  
+ *  TODO:
+ *    vailidate that the codec really supports these DACs
+ *    before turning them on. 
+ */
+static void ali_set_dac_channels(struct ali_state *state, int channel)
+{
+	int aud_reg;
+	struct ac97_codec *codec = state->card->ac97_codec[0];
+
+	aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS);
+	aud_reg |= AC97_EA_PRI | AC97_EA_PRJ | AC97_EA_PRK;
+	state->card->ac97_status &= ~(SURR_ON | CENTER_LFE_ON);
+
+	switch (channel) {
+	case 2:		/* always enabled */
+		break;
+	case 4:
+		aud_reg &= ~AC97_EA_PRJ;
+		state->card->ac97_status |= SURR_ON;
+		break;
+	case 6:
+		aud_reg &= ~(AC97_EA_PRJ | AC97_EA_PRI | AC97_EA_PRK);
+		state->card->ac97_status |= SURR_ON | CENTER_LFE_ON;
+		break;
+	default:
+		break;
+	}
+	ali_ac97_set(codec, AC97_EXTENDED_STATUS, aud_reg);
+
+}
+
+/* set playback sample rate */
+static unsigned int ali_set_dac_rate(struct ali_state *state,
+				     unsigned int rate)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+	u32 new_rate;
+	struct ac97_codec *codec = state->card->ac97_codec[0];
+
+	if (!(state->card->ac97_features & 0x0001)) {
+		dmabuf->rate = clocking;
+		return clocking;
+	}
+
+	if (rate > 48000)
+		rate = 48000;
+	if (rate < 8000)
+		rate = 8000;
+	dmabuf->rate = rate;
+
+	/*
+	 *      Adjust for misclocked crap
+	 */
+
+	rate = (rate * clocking) / 48000;
+
+	if (strict_clocking && rate < 8000) {
+		rate = 8000;
+		dmabuf->rate = (rate * 48000) / clocking;
+	}
+
+	new_rate = ac97_set_dac_rate(codec, rate);
+	if (new_rate != rate) {
+		dmabuf->rate = (new_rate * 48000) / clocking;
+	}
+	rate = new_rate;
+	return dmabuf->rate;
+}
+
+/* set recording sample rate */
+static unsigned int ali_set_adc_rate(struct ali_state *state,
+				     unsigned int rate)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+	u32 new_rate;
+	struct ac97_codec *codec = state->card->ac97_codec[0];
+
+	if (!(state->card->ac97_features & 0x0001)) {
+		dmabuf->rate = clocking;
+		return clocking;
+	}
+
+	if (rate > 48000)
+		rate = 48000;
+	if (rate < 8000)
+		rate = 8000;
+	dmabuf->rate = rate;
+
+	/*
+	 *      Adjust for misclocked crap
+	 */
+
+	rate = (rate * clocking) / 48000;
+	if (strict_clocking && rate < 8000) {
+		rate = 8000;
+		dmabuf->rate = (rate * 48000) / clocking;
+	}
+
+	new_rate = ac97_set_adc_rate(codec, rate);
+
+	if (new_rate != rate) {
+		dmabuf->rate = (new_rate * 48000) / clocking;
+		rate = new_rate;
+	}
+	return dmabuf->rate;
+}
+
+/* set codec independent spdifout sample rate */
+static unsigned int ali_set_codecspdifout_rate(struct ali_state *state,
+					       unsigned int rate)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+
+	if (!(state->card->ac97_features & 0x0001)) {
+		dmabuf->rate = clocking;
+		return clocking;
+	}
+
+	if (rate > 48000)
+		rate = 48000;
+	if (rate < 8000)
+		rate = 8000;
+	dmabuf->rate = rate;
+
+	return dmabuf->rate;
+}
+
+/* set  controller independent spdif out function sample rate */
+static void ali_set_spdifout_rate(struct ali_state *state,
+				  unsigned int rate)
+{
+	unsigned char ch_st_sel;
+	unsigned short status_rate;
+
+	switch (rate) {
+	case 44100:
+		status_rate = 0;
+		break;
+	case 32000:
+		status_rate = 0x300;
+		break;
+	case 48000:
+	default:
+		status_rate = 0x200;
+		break;
+	}
+
+	ch_st_sel = inb(state->card->iobase + ALI_SPDIFICS) & ALI_SPDIF_OUT_CH_STATUS;	//select spdif_out
+
+	ch_st_sel |= 0x80;	//select right
+	outb(ch_st_sel, (state->card->iobase + ALI_SPDIFICS));
+	outb(status_rate | 0x20, (state->card->iobase + ALI_SPDIFCSR + 2));
+
+	ch_st_sel &= (~0x80);	//select left
+	outb(ch_st_sel, (state->card->iobase + ALI_SPDIFICS));
+	outw(status_rate | 0x10, (state->card->iobase + ALI_SPDIFCSR + 2));
+}
+
+/* get current playback/recording dma buffer pointer (byte offset from LBA),
+   called with spinlock held! */
+
+static inline unsigned ali_get_dma_addr(struct ali_state *state, int rec)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+	unsigned int civ, offset, port, port_picb;
+	unsigned int data;
+
+	if (!dmabuf->enable)
+		return 0;
+
+	if (rec == 1)
+		port = state->card->iobase + dmabuf->read_channel->port;
+	else if (rec == 2)
+		port = state->card->iobase + dmabuf->codec_spdifout_channel->port;
+	else if (rec == 3)
+		port = state->card->iobase + dmabuf->controller_spdifout_channel->port;
+	else
+		port = state->card->iobase + dmabuf->write_channel->port;
+
+	port_picb = port + OFF_PICB;
+
+	do {
+		civ = inb(port + OFF_CIV) & 31;
+		offset = inw(port_picb);
+		/* Must have a delay here! */
+		if (offset == 0)
+			udelay(1);
+
+		/* Reread both registers and make sure that that total
+		 * offset from the first reading to the second is 0.
+		 * There is an issue with SiS hardware where it will count
+		 * picb down to 0, then update civ to the next value,
+		 * then set the new picb to fragsize bytes.  We can catch
+		 * it between the civ update and the picb update, making
+		 * it look as though we are 1 fragsize ahead of where we
+		 * are.  The next to we get the address though, it will
+		 * be back in thdelay is more than long enough
+		 * that we won't have to worry about the chip still being
+		 * out of sync with reality ;-)
+		 */
+	} while (civ != (inb(port + OFF_CIV) & 31) || offset != inw(port_picb));
+
+	data = ((civ + 1) * dmabuf->fragsize - (2 * offset)) % dmabuf->dmasize;
+	if (inw(port_picb) == 0)
+		data -= 2048;
+
+	return data;
+}
+
+/* Stop recording (lock held) */
+static inline void __stop_adc(struct ali_state *state)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+	struct ali_card *card = state->card;
+
+	dmabuf->enable &= ~ADC_RUNNING;
+
+	outl((1 << 18) | (1 << 16), card->iobase + ALI_DMACR);
+	udelay(1);
+
+	outb(0, card->iobase + PI_CR);
+	while (inb(card->iobase + PI_CR) != 0);
+
+	// now clear any latent interrupt bits (like the halt bit)
+	outb(inb(card->iobase + PI_SR) | 0x001e, card->iobase + PI_SR);
+	outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_PCMIN, card->iobase + ALI_INTERRUPTSR);
+}
+
+static void stop_adc(struct ali_state *state)
+{
+	struct ali_card *card = state->card;
+	unsigned long flags;
+	spin_lock_irqsave(&card->lock, flags);
+	__stop_adc(state);
+	spin_unlock_irqrestore(&card->lock, flags);
+}
+
+static inline void __start_adc(struct ali_state *state)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+
+	if (dmabuf->count < dmabuf->dmasize && dmabuf->ready
+	    && !dmabuf->enable && (dmabuf->trigger & PCM_ENABLE_INPUT)) {
+		dmabuf->enable |= ADC_RUNNING;
+		outb((1 << 4) | (1 << 2), state->card->iobase + PI_CR);
+		if (state->card->channel[0].used == 1)
+			outl(1, state->card->iobase + ALI_DMACR);	// DMA CONTROL REGISTRER
+		udelay(100);
+		if (state->card->channel[2].used == 1)
+			outl((1 << 2), state->card->iobase + ALI_DMACR);	//DMA CONTROL REGISTER
+		udelay(100);
+	}
+}
+
+static void start_adc(struct ali_state *state)
+{
+	struct ali_card *card = state->card;
+	unsigned long flags;
+
+	spin_lock_irqsave(&card->lock, flags);
+	__start_adc(state);
+	spin_unlock_irqrestore(&card->lock, flags);
+}
+
+/* stop playback (lock held) */
+static inline void __stop_dac(struct ali_state *state)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+	struct ali_card *card = state->card;
+
+	dmabuf->enable &= ~DAC_RUNNING;
+	outl(0x00020000, card->iobase + 0x08);
+	outb(0, card->iobase + PO_CR);
+	while (inb(card->iobase + PO_CR) != 0)
+		cpu_relax();
+
+	outb(inb(card->iobase + PO_SR) | 0x001e, card->iobase + PO_SR);
+
+	outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_PCMOUT, card->iobase + ALI_INTERRUPTSR);
+}
+
+static void stop_dac(struct ali_state *state)
+{
+	struct ali_card *card = state->card;
+	unsigned long flags;
+	spin_lock_irqsave(&card->lock, flags);
+	__stop_dac(state);
+	spin_unlock_irqrestore(&card->lock, flags);
+}
+
+static inline void __start_dac(struct ali_state *state)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+	if (dmabuf->count > 0 && dmabuf->ready && !dmabuf->enable &&
+	    (dmabuf->trigger & PCM_ENABLE_OUTPUT)) {
+		dmabuf->enable |= DAC_RUNNING;
+		outb((1 << 4) | (1 << 2), state->card->iobase + PO_CR);
+		outl((1 << 1), state->card->iobase + 0x08);	//dma control register
+	}
+}
+
+static void start_dac(struct ali_state *state)
+{
+	struct ali_card *card = state->card;
+	unsigned long flags;
+	spin_lock_irqsave(&card->lock, flags);
+	__start_dac(state);
+	spin_unlock_irqrestore(&card->lock, flags);
+}
+
+/* stop codec and controller spdif out  (lock held) */
+static inline void __stop_spdifout(struct ali_state *state)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+	struct ali_card *card = state->card;
+
+	if (codec_independent_spdif_locked > 0) {
+		dmabuf->enable &= ~CODEC_SPDIFOUT_RUNNING;
+		outl((1 << 19), card->iobase + 0x08);
+		outb(0, card->iobase + CODECSPDIFOUT_CR);
+
+		while (inb(card->iobase + CODECSPDIFOUT_CR) != 0)
+			cpu_relax();
+
+		outb(inb(card->iobase + CODECSPDIFOUT_SR) | 0x001e, card->iobase + CODECSPDIFOUT_SR);
+		outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_CODECSPDIFOUT, card->iobase + ALI_INTERRUPTSR);
+	} else {
+		if (controller_independent_spdif_locked > 0) {
+			dmabuf->enable &= ~CONTROLLER_SPDIFOUT_RUNNING;
+			outl((1 << 23), card->iobase + 0x08);
+			outb(0, card->iobase + CONTROLLERSPDIFOUT_CR);
+			while (inb(card->iobase + CONTROLLERSPDIFOUT_CR) != 0)
+				cpu_relax();
+			outb(inb(card->iobase + CONTROLLERSPDIFOUT_SR) | 0x001e, card->iobase + CONTROLLERSPDIFOUT_SR);
+			outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_SPDIFOUT, card->iobase + ALI_INTERRUPTSR);
+		}
+	}
+}
+
+static void stop_spdifout(struct ali_state *state)
+{
+	struct ali_card *card = state->card;
+	unsigned long flags;
+	spin_lock_irqsave(&card->lock, flags);
+	__stop_spdifout(state);
+	spin_unlock_irqrestore(&card->lock, flags);
+}
+
+static inline void __start_spdifout(struct ali_state *state)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+	if (dmabuf->count > 0 && dmabuf->ready && !dmabuf->enable &&
+	    (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) {
+		if (codec_independent_spdif_locked > 0) {
+			dmabuf->enable |= CODEC_SPDIFOUT_RUNNING;
+			outb((1 << 4) | (1 << 2), state->card->iobase + CODECSPDIFOUT_CR);
+			outl((1 << 3), state->card->iobase + 0x08);	//dma control register
+		} else {
+			if (controller_independent_spdif_locked > 0) {
+				dmabuf->enable |= CONTROLLER_SPDIFOUT_RUNNING;
+				outb((1 << 4) | (1 << 2), state->card->iobase + CONTROLLERSPDIFOUT_CR);
+				outl((1 << 7), state->card->iobase + 0x08);	//dma control register
+			}
+		}
+	}
+}
+
+static void start_spdifout(struct ali_state *state)
+{
+	struct ali_card *card = state->card;
+	unsigned long flags;
+	spin_lock_irqsave(&card->lock, flags);
+	__start_spdifout(state);
+	spin_unlock_irqrestore(&card->lock, flags);
+}
+
+#define DMABUF_DEFAULTORDER (16-PAGE_SHIFT)
+#define DMABUF_MINORDER 1
+
+/* allocate DMA buffer, playback , recording,spdif out  buffer should be allocated separately */
+static int alloc_dmabuf(struct ali_state *state)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+	void *rawbuf = NULL;
+	int order, size;
+	struct page *page, *pend;
+
+	/* If we don't have any oss frag params, then use our default ones */
+	if (dmabuf->ossmaxfrags == 0)
+		dmabuf->ossmaxfrags = 4;
+	if (dmabuf->ossfragsize == 0)
+		dmabuf->ossfragsize = (PAGE_SIZE << DMABUF_DEFAULTORDER) / dmabuf->ossmaxfrags;
+	size = dmabuf->ossfragsize * dmabuf->ossmaxfrags;
+
+	if (dmabuf->rawbuf && (PAGE_SIZE << dmabuf->buforder) == size)
+		return 0;
+	/* alloc enough to satisfy the oss params */
+	for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) {
+		if ((PAGE_SIZE << order) > size)
+			continue;
+		if ((rawbuf = pci_alloc_consistent(state->card->pci_dev,
+						   PAGE_SIZE << order,
+						   &dmabuf->dma_handle)))
+			break;
+	}
+	if (!rawbuf)
+		return -ENOMEM;
+
+	dmabuf->ready = dmabuf->mapped = 0;
+	dmabuf->rawbuf = rawbuf;
+	dmabuf->buforder = order;
+
+	/* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */
+	pend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1);
+	for (page = virt_to_page(rawbuf); page <= pend; page++)
+		SetPageReserved(page);
+	return 0;
+}
+
+/* free DMA buffer */
+static void dealloc_dmabuf(struct ali_state *state)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+	struct page *page, *pend;
+
+	if (dmabuf->rawbuf) {
+		/* undo marking the pages as reserved */
+		pend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << dmabuf->buforder) - 1);
+		for (page = virt_to_page(dmabuf->rawbuf); page <= pend; page++)
+			ClearPageReserved(page);
+		pci_free_consistent(state->card->pci_dev,
+				    PAGE_SIZE << dmabuf->buforder,
+				    dmabuf->rawbuf, dmabuf->dma_handle);
+	}
+	dmabuf->rawbuf = NULL;
+	dmabuf->mapped = dmabuf->ready = 0;
+}
+
+static int prog_dmabuf(struct ali_state *state, unsigned rec)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+	struct ali_channel *c = NULL;
+	struct sg_item *sg;
+	unsigned long flags;
+	int ret;
+	unsigned fragint;
+	int i;
+
+	spin_lock_irqsave(&state->card->lock, flags);
+	if (dmabuf->enable & DAC_RUNNING)
+		__stop_dac(state);
+	if (dmabuf->enable & ADC_RUNNING)
+		__stop_adc(state);
+	if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
+		__stop_spdifout(state);
+	if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
+		__stop_spdifout(state);
+
+	dmabuf->total_bytes = 0;
+	dmabuf->count = dmabuf->error = 0;
+	dmabuf->swptr = dmabuf->hwptr = 0;
+	spin_unlock_irqrestore(&state->card->lock, flags);
+
+	/* allocate DMA buffer, let alloc_dmabuf determine if we are already
+	 * allocated well enough or if we should replace the current buffer
+	 * (assuming one is already allocated, if it isn't, then allocate it).
+	 */
+	if ((ret = alloc_dmabuf(state)))
+		return ret;
+
+	/* FIXME: figure out all this OSS fragment stuff */
+	/* I did, it now does what it should according to the OSS API.  DL */
+	/* We may not have realloced our dmabuf, but the fragment size to
+	 * fragment number ratio may have changed, so go ahead and reprogram
+	 * things
+	 */
+
+	dmabuf->dmasize = PAGE_SIZE << dmabuf->buforder;
+	dmabuf->numfrag = SG_LEN;
+	dmabuf->fragsize = dmabuf->dmasize / dmabuf->numfrag;
+	dmabuf->fragsamples = dmabuf->fragsize >> 1;
+	dmabuf->userfragsize = dmabuf->ossfragsize;
+	dmabuf->userfrags = dmabuf->dmasize / dmabuf->ossfragsize;
+
+	memset(dmabuf->rawbuf, 0, dmabuf->dmasize);
+
+	if (dmabuf->ossmaxfrags == 4) {
+		fragint = 8;
+		dmabuf->fragshift = 2;
+	} else if (dmabuf->ossmaxfrags == 8) {
+		fragint = 4;
+		dmabuf->fragshift = 3;
+	} else if (dmabuf->ossmaxfrags == 16) {
+		fragint = 2;
+		dmabuf->fragshift = 4;
+	} else {
+		fragint = 1;
+		dmabuf->fragshift = 5;
+	}
+	/*
+	 *      Now set up the ring 
+	 */
+
+	if (rec == 1)
+		c = dmabuf->read_channel;
+	else if (rec == 2)
+		c = dmabuf->codec_spdifout_channel;
+	else if (rec == 3)
+		c = dmabuf->controller_spdifout_channel;
+	else if (rec == 0)
+		c = dmabuf->write_channel;
+	if (c != NULL) {
+		sg = &c->sg[0];
+		/*
+		 *      Load up 32 sg entries and take an interrupt at half
+		 *      way (we might want more interrupts later..) 
+		 */
+		for (i = 0; i < dmabuf->numfrag; i++) {
+			sg->busaddr =
+			    virt_to_bus(dmabuf->rawbuf +
+					dmabuf->fragsize * i);
+			// the card will always be doing 16bit stereo
+			sg->control = dmabuf->fragsamples;
+			sg->control |= CON_BUFPAD;	//I modify
+			// set us up to get IOC interrupts as often as needed to
+			// satisfy numfrag requirements, no more
+			if (((i + 1) % fragint) == 0) {
+				sg->control |= CON_IOC;
+			}
+			sg++;
+		}
+		spin_lock_irqsave(&state->card->lock, flags);
+		outb(2, state->card->iobase + c->port + OFF_CR);	/* reset DMA machine */
+		outl(virt_to_bus(&c->sg[0]), state->card->iobase + c->port + OFF_BDBAR);
+		outb(0, state->card->iobase + c->port + OFF_CIV);
+		outb(0, state->card->iobase + c->port + OFF_LVI);
+		spin_unlock_irqrestore(&state->card->lock, flags);
+	}
+	/* set the ready flag for the dma buffer */
+	dmabuf->ready = 1;
+	return 0;
+}
+
+static void __ali_update_lvi(struct ali_state *state, int rec)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+	int x, port;
+	port = state->card->iobase;
+	if (rec == 1)
+		port += dmabuf->read_channel->port;
+	else if (rec == 2)
+		port += dmabuf->codec_spdifout_channel->port;
+	else if (rec == 3)
+		port += dmabuf->controller_spdifout_channel->port;
+	else if (rec == 0)
+		port += dmabuf->write_channel->port;
+	/* if we are currently stopped, then our CIV is actually set to our
+	 * *last* sg segment and we are ready to wrap to the next.  However,
+	 * if we set our LVI to the last sg segment, then it won't wrap to
+	 * the next sg segment, it won't even get a start.  So, instead, when
+	 * we are stopped, we set both the LVI value and also we increment
+	 * the CIV value to the next sg segment to be played so that when
+	 * we call start_{dac,adc}, things will operate properly
+	 */
+	if (!dmabuf->enable && dmabuf->ready) {
+		if (rec && dmabuf->count < dmabuf->dmasize && (dmabuf->trigger & PCM_ENABLE_INPUT)) {
+			outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI);
+			__start_adc(state);
+			while (! (inb(port + OFF_CR) & ((1 << 4) | (1 << 2))))
+				cpu_relax();
+		} else if (!rec && dmabuf->count && (dmabuf->trigger & PCM_ENABLE_OUTPUT)) {
+			outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI);
+			__start_dac(state);
+			while (!(inb(port + OFF_CR) & ((1 << 4) | (1 << 2))))
+				cpu_relax();
+		} else if (rec && dmabuf->count && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) {
+			if (codec_independent_spdif_locked > 0) {
+				// outb((inb(port+OFF_CIV))&31, port+OFF_LVI);
+				outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI);
+				__start_spdifout(state);
+				while (!(inb(port + OFF_CR) & ((1 << 4) | (1 << 2))))
+					cpu_relax();
+			} else {
+				if (controller_independent_spdif_locked > 0) {
+					outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI);
+					__start_spdifout(state);
+					while (!(inb(port + OFF_CR) & ((1 << 4) | (1 << 2))))
+						cpu_relax();
+				}
+			}
+		}
+	}
+
+	/* swptr - 1 is the tail of our transfer */
+	x = (dmabuf->dmasize + dmabuf->swptr - 1) % dmabuf->dmasize;
+	x /= dmabuf->fragsize;
+	outb(x, port + OFF_LVI);
+}
+
+static void ali_update_lvi(struct ali_state *state, int rec)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+	unsigned long flags;
+	if (!dmabuf->ready)
+		return;
+	spin_lock_irqsave(&state->card->lock, flags);
+	__ali_update_lvi(state, rec);
+	spin_unlock_irqrestore(&state->card->lock, flags);
+}
+
+/* update buffer manangement pointers, especially, dmabuf->count and dmabuf->hwptr */
+static void ali_update_ptr(struct ali_state *state)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+	unsigned hwptr;
+	int diff;
+	
+	/* error handling and process wake up for DAC */
+	if (dmabuf->enable == ADC_RUNNING) {
+		/* update hardware pointer */
+		hwptr = ali_get_dma_addr(state, 1);
+		diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize;
+		dmabuf->hwptr = hwptr;
+		dmabuf->total_bytes += diff;
+		dmabuf->count += diff;
+		if (dmabuf->count > dmabuf->dmasize) {
+			/* buffer underrun or buffer overrun */
+			/* this is normal for the end of a read */
+			/* only give an error if we went past the */
+			/* last valid sg entry */
+			if ((inb(state->card->iobase + PI_CIV) & 31) != (inb(state->card->iobase + PI_LVI) & 31)) {
+				printk(KERN_WARNING "ali_audio: DMA overrun on read\n");
+				dmabuf->error++;
+			}
+		}
+		if (dmabuf->count > dmabuf->userfragsize)
+			wake_up(&dmabuf->wait);
+	}
+	/* error handling and process wake up for DAC */
+	if (dmabuf->enable == DAC_RUNNING) {
+		/* update hardware pointer */
+		hwptr = ali_get_dma_addr(state, 0);
+		diff =
+		    (dmabuf->dmasize + hwptr -
+		     dmabuf->hwptr) % dmabuf->dmasize;
+#if defined(DEBUG_INTERRUPTS) || defined(DEBUG_MMAP)
+		printk("DAC HWP %d,%d,%d\n", hwptr, dmabuf->hwptr, diff);
+#endif
+		dmabuf->hwptr = hwptr;
+		dmabuf->total_bytes += diff;
+		dmabuf->count -= diff;
+		if (dmabuf->count < 0) {
+			/* buffer underrun or buffer overrun */
+			/* this is normal for the end of a write */
+			/* only give an error if we went past the */
+			/* last valid sg entry */
+			if ((inb(state->card->iobase + PO_CIV) & 31) != (inb(state->card->iobase + PO_LVI) & 31)) {
+				printk(KERN_WARNING "ali_audio: DMA overrun on write\n");
+				printk(KERN_DEBUG "ali_audio: CIV %d, LVI %d, hwptr %x, count %d\n",
+				     			inb(state->card->iobase + PO_CIV) & 31,
+				     			inb(state->card->iobase + PO_LVI) & 31, 
+							dmabuf->hwptr,
+							dmabuf->count);
+				dmabuf->error++;
+			}
+		}
+		if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize))
+		    	wake_up(&dmabuf->wait);
+	}
+
+	/* error handling and process wake up for CODEC SPDIF OUT */
+	if (dmabuf->enable == CODEC_SPDIFOUT_RUNNING) {
+		/* update hardware pointer */
+		hwptr = ali_get_dma_addr(state, 2);
+		diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize;
+		dmabuf->hwptr = hwptr;
+		dmabuf->total_bytes += diff;
+		dmabuf->count -= diff;
+		if (dmabuf->count < 0) {
+			/* buffer underrun or buffer overrun */
+			/* this is normal for the end of a write */
+			/* only give an error if we went past the */
+			/* last valid sg entry */
+			if ((inb(state->card->iobase + CODECSPDIFOUT_CIV) & 31) != (inb(state->card->iobase + CODECSPDIFOUT_LVI) & 31)) {
+				printk(KERN_WARNING "ali_audio: DMA overrun on write\n");
+				printk(KERN_DEBUG "ali_audio: CIV %d, LVI %d, hwptr %x, count %d\n", 
+				        inb(state->card->iobase + CODECSPDIFOUT_CIV) & 31,
+					inb(state->card->iobase + CODECSPDIFOUT_LVI) & 31,
+					dmabuf->hwptr, dmabuf->count);
+				dmabuf->error++;
+			}
+		}
+		if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize))
+			wake_up(&dmabuf->wait);
+	}
+	/* error handling and process wake up for CONTROLLER SPDIF OUT */
+	if (dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) {
+		/* update hardware pointer */
+		hwptr = ali_get_dma_addr(state, 3);
+		diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize;
+		dmabuf->hwptr = hwptr;
+		dmabuf->total_bytes += diff;
+		dmabuf->count -= diff;
+		if (dmabuf->count < 0) {
+			/* buffer underrun or buffer overrun */
+			/* this is normal for the end of a write */
+			/* only give an error if we went past the */
+			/* last valid sg entry */
+			if ((inb(state->card->iobase + CONTROLLERSPDIFOUT_CIV) & 31) != (inb(state->card->iobase + CONTROLLERSPDIFOUT_LVI) & 31)) {
+				printk(KERN_WARNING
+				       "ali_audio: DMA overrun on write\n");
+				printk("ali_audio: CIV %d, LVI %d, hwptr %x, "
+					"count %d\n",
+				     		inb(state->card->iobase + CONTROLLERSPDIFOUT_CIV) & 31,
+				     		inb(state->card->iobase + CONTROLLERSPDIFOUT_LVI) & 31,
+				     		dmabuf->hwptr, dmabuf->count);
+				dmabuf->error++;
+			}
+		}
+		if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize))
+			wake_up(&dmabuf->wait);
+	}
+}
+
+static inline int ali_get_free_write_space(struct
+					   ali_state
+					   *state)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+	int free;
+
+	if (dmabuf->count < 0) {
+		dmabuf->count = 0;
+		dmabuf->swptr = dmabuf->hwptr;
+	}
+	free = dmabuf->dmasize - dmabuf->swptr;
+	if ((dmabuf->count + free) > dmabuf->dmasize){
+		free = dmabuf->dmasize - dmabuf->count;
+	}
+	return free;
+}
+
+static inline int ali_get_available_read_data(struct
+					      ali_state
+					      *state)
+{
+	struct dmabuf *dmabuf = &state->dmabuf;
+	int avail;
+	ali_update_ptr(state);
+	// catch overruns during record
+	if (dmabuf->count > dmabuf->dmasize) {
+		dmabuf->count = dmabuf->dmasize;
+		dmabuf->swptr = dmabuf->hwptr;
+	}
+	avail = dmabuf->count;
+	avail -= (dmabuf->hwptr % dmabuf->fragsize);
+	if (avail < 0)
+		return (0);
+	return (avail);
+}
+
+static int drain_dac(struct ali_state *state, int signals_allowed)
+{
+
+	DECLARE_WAITQUEUE(wait, current);
+	struct dmabuf *dmabuf = &state->dmabuf;
+	unsigned long flags;
+	unsigned long tmo;
+	int count;
+	if (!dmabuf->ready)
+		return 0;
+	if (dmabuf->mapped) {
+		stop_dac(state);
+		return 0;
+	}
+	add_wait_queue(&dmabuf->wait, &wait);
+	for (;;) {
+
+		spin_lock_irqsave(&state->card->lock, flags);
+		ali_update_ptr(state);
+		count = dmabuf->count;
+		spin_unlock_irqrestore(&state->card->lock, flags);
+		if (count <= 0)
+			break;
+		/* 
+		 * This will make sure that our LVI is correct, that our
+		 * pointer is updated, and that the DAC is running.  We
+		 * have to force the setting of dmabuf->trigger to avoid
+		 * any possible deadlocks.
+		 */
+		if (!dmabuf->enable) {
+			dmabuf->trigger = PCM_ENABLE_OUTPUT;
+			ali_update_lvi(state, 0);
+		}
+		if (signal_pending(current) && signals_allowed) {
+			break;
+		}
+
+		/* It seems that we have to set the current state to
+		 * TASK_INTERRUPTIBLE every time to make the process
+		 * really go to sleep.  This also has to be *after* the
+		 * update_ptr() call because update_ptr is likely to
+		 * do a wake_up() which will unset this before we ever
+		 * try to sleep, resuling in a tight loop in this code
+		 * instead of actually sleeping and waiting for an
+		 * interrupt to wake us up!
+		 */
+		set_current_state(TASK_INTERRUPTIBLE);
+		/*
+		 * set the timeout to significantly longer than it *should*
+		 * take for the DAC to drain the DMA buffer
+		 */
+		tmo = (count * HZ) / (dmabuf->rate);
+		if (!schedule_timeout(tmo >= 2 ? tmo : 2)) {
+			printk(KERN_ERR "ali_audio: drain_dac, dma timeout?\n");
+			count = 0;
+			break;
+		}
+	}
+	set_current_state(TASK_RUNNING);
+	remove_wait_queue(&dmabuf->wait, &wait);
+	if (count > 0 && signal_pending(current) && signals_allowed)
+		return -ERESTARTSYS;
+	stop_dac(state);
+	return 0;
+}
+
+
+static int drain_spdifout(struct ali_state *state, int signals_allowed)
+{
+
+	DECLARE_WAITQUEUE(wait, current);
+	struct dmabuf *dmabuf = &state->dmabuf;
+	unsigned long flags;
+	unsigned long tmo;
+	int count;
+	if (!dmabuf->ready)
+		return 0;
+	if (dmabuf->mapped) {
+		stop_spdifout(state);
+		return 0;
+	}
+	add_wait_queue(&dmabuf->wait, &wait);
+	for (;;) {
+
+		spin_lock_irqsave(&state->card->lock, flags);
+		ali_update_ptr(state);
+		count = dmabuf->count;
+		spin_unlock_irqrestore(&state->card->lock, flags);
+		if (count <= 0)
+			break;
+		/* 
+		 * This will make sure that our LVI is correct, that our
+		 * pointer is updated, and that the DAC is running.  We
+		 * have to force the setting of dmabuf->trigger to avoid
+		 * any possible deadlocks.
+		 */
+		if (!dmabuf->enable) {
+			if (codec_independent_spdif_locked > 0) {
+				dmabuf->trigger = SPDIF_ENABLE_OUTPUT;
+				ali_update_lvi(state, 2);
+			} else {
+				if (controller_independent_spdif_locked > 0) {
+					dmabuf->trigger = SPDIF_ENABLE_OUTPUT;
+					ali_update_lvi(state, 3);
+				}
+			}
+		}
+		if (signal_pending(current) && signals_allowed) {
+			break;
+		}
+
+		/* It seems that we have to set the current state to
+		 * TASK_INTERRUPTIBLE every time to make the process
+		 * really go to sleep.  This also has to be *after* the
+		 * update_ptr() call because update_ptr is likely to
+		 * do a wake_up() which will unset this before we ever
+		 * try to sleep, resuling in a tight loop in this code
+		 * instead of actually sleeping and waiting for an
+		 * interrupt to wake us up!
+		 */
+		set_current_state(TASK_INTERRUPTIBLE);
+		/*
+		 * set the timeout to significantly longer than it *should*
+		 * take for the DAC to drain the DMA buffer
+		 */
+		tmo = (count * HZ) / (dmabuf->rate);
+		if (!schedule_timeout(tmo >= 2 ? tmo : 2)) {
+			printk(KERN_ERR "ali_audio: drain_spdifout, dma timeout?\n");
+			count = 0;
+			break;
+		}
+	}
+	set_current_state(TASK_RUNNING);
+	remove_wait_queue(&dmabuf->wait, &wait);
+	if (count > 0 && signal_pending(current) && signals_allowed)
+		return -ERESTARTSYS;
+	stop_spdifout(state);
+	return 0;
+}
+
+static void ali_channel_interrupt(struct ali_card *card)
+{
+	int i, count;
+	
+	for (i = 0; i < NR_HW_CH; i++) {
+		struct ali_state *state = card->states[i];
+		struct ali_channel *c = NULL;
+		struct dmabuf *dmabuf;
+		unsigned long port = card->iobase;
+		u16 status;
+		if (!state)
+			continue;
+		if (!state->dmabuf.ready)
+			continue;
+		dmabuf = &state->dmabuf;
+		if (codec_independent_spdif_locked > 0) {
+			if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) {
+				c = dmabuf->codec_spdifout_channel;
+			}
+		} else {
+			if (controller_independent_spdif_locked > 0) {
+				if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
+					c = dmabuf->controller_spdifout_channel;
+			} else {
+				if (dmabuf->enable & DAC_RUNNING) {
+					c = dmabuf->write_channel;
+				} else if (dmabuf->enable & ADC_RUNNING) {
+					c = dmabuf->read_channel;
+				} else
+					continue;
+			}
+		}
+		port += c->port;
+
+		status = inw(port + OFF_SR);
+
+		if (status & DMA_INT_COMPLETE) {
+			/* only wake_up() waiters if this interrupt signals
+			 * us being beyond a userfragsize of data open or
+			 * available, and ali_update_ptr() does that for
+			 * us
+			 */
+			ali_update_ptr(state);
+		}
+
+		if (status & DMA_INT_LVI) {
+			ali_update_ptr(state);
+			wake_up(&dmabuf->wait);
+
+			if (dmabuf->enable & DAC_RUNNING)
+				count = dmabuf->count;
+			else if (dmabuf->enable & ADC_RUNNING)
+				count = dmabuf->dmasize - dmabuf->count;
+			else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
+				count = dmabuf->count;
+			else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
+				count = dmabuf->count;
+			else count = 0;
+
+			if (count > 0) {
+				if (dmabuf->enable & DAC_RUNNING)
+					outl((1 << 1), state->card->iobase + ALI_DMACR);
+				else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
+						outl((1 << 3), state->card->iobase + ALI_DMACR);
+				else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
+					outl((1 << 7), state->card->iobase + ALI_DMACR);
+			} else {
+				if (dmabuf->enable & DAC_RUNNING)
+					__stop_dac(state);
+				if (dmabuf->enable & ADC_RUNNING)
+					__stop_adc(state);
+				if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
+					__stop_spdifout(state);
+				if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
+					__stop_spdifout(state);
+				dmabuf->enable = 0;
+				wake_up(&dmabuf->wait);
+			}
+
+		}
+		if (!(status & DMA_INT_DCH)) {
+			ali_update_ptr(state);
+			wake_up(&dmabuf->wait);
+			if (dmabuf->enable & DAC_RUNNING)
+				count = dmabuf->count;
+			else if (dmabuf->enable & ADC_RUNNING)
+				count = dmabuf->dmasize - dmabuf->count;
+			else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
+				count = dmabuf->count;
+			else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
+				count = dmabuf->count;
+			else
+				count = 0;
+
+			if (count > 0) {
+				if (dmabuf->enable & DAC_RUNNING)
+					outl((1 << 1), state->card->iobase + ALI_DMACR);
+				else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
+					outl((1 << 3), state->card->iobase + ALI_DMACR);
+				else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
+					outl((1 << 7), state->card->iobase + ALI_DMACR);
+			} else {
+				if (dmabuf->enable & DAC_RUNNING)
+					__stop_dac(state);
+				if (dmabuf->enable & ADC_RUNNING)
+					__stop_adc(state);
+				if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
+					__stop_spdifout(state);
+				if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
+					__stop_spdifout(state);
+				dmabuf->enable = 0;
+				wake_up(&dmabuf->wait);
+			}
+		}
+		outw(status & DMA_INT_MASK, port + OFF_SR);
+	}
+}
+
+static irqreturn_t ali_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	struct ali_card *card = (struct ali_card *) dev_id;
+	u32 status;
+	u16 status2;
+
+	spin_lock(&card->lock);
+	status = inl(card->iobase + ALI_INTERRUPTSR);
+	if (!(status & INT_MASK)) {
+		spin_unlock(&card->lock);
+		return IRQ_NONE;		/* not for us */
+	}
+
+	if (codec_independent_spdif_locked > 0) {
+		if (globel == 0) {
+			globel += 1;
+			status2 = inw(card->iobase + 0x76);
+			outw(status2 | 0x000c, card->iobase + 0x76);
+		} else {
+			if (status & (INT_PCMOUT | INT_PCMIN | INT_MICIN | INT_SPDIFOUT | INT_CODECSPDIFOUT))
+				ali_channel_interrupt(card);
+		}
+	} else {
+		if (status & (INT_PCMOUT | INT_PCMIN | INT_MICIN | INT_SPDIFOUT | INT_CODECSPDIFOUT))
+			ali_channel_interrupt(card);
+	}
+
+	/* clear 'em */
+	outl(status & INT_MASK, card->iobase + ALI_INTERRUPTSR);
+	spin_unlock(&card->lock);
+	return IRQ_HANDLED;
+}
+
+/* in this loop, dmabuf.count signifies the amount of data that is
+   waiting to be copied to the user's buffer.  It is filled by the dma
+   machine and drained by this loop. */
+
+static ssize_t ali_read(struct file *file, char __user *buffer,
+			size_t count, loff_t * ppos)
+{
+	struct ali_state *state = (struct ali_state *) file->private_data;
+	struct ali_card *card = state ? state->card : NULL;
+	struct dmabuf *dmabuf = &state->dmabuf;
+	ssize_t ret;
+	unsigned long flags;
+	unsigned int swptr;
+	int cnt;
+	DECLARE_WAITQUEUE(waita, current);
+#ifdef DEBUG2
+	printk("ali_audio: ali_read called, count = %d\n", count);
+#endif
+	if (dmabuf->mapped)
+		return -ENXIO;
+	if (dmabuf->enable & DAC_RUNNING)
+		return -ENODEV;
+	if (!dmabuf->read_channel) {
+		dmabuf->ready = 0;
+		dmabuf->read_channel = card->alloc_rec_pcm_channel(card);
+		if (!dmabuf->read_channel) {
+			return -EBUSY;
+		}
+	}
+	if (!dmabuf->ready && (ret = prog_dmabuf(state, 1)))
+		return ret;
+	if (!access_ok(VERIFY_WRITE, buffer, count))
+		return -EFAULT;
+	ret = 0;
+	add_wait_queue(&dmabuf->wait, &waita);
+	while (count > 0) {
+		set_current_state(TASK_INTERRUPTIBLE);
+		spin_lock_irqsave(&card->lock, flags);
+		if (PM_SUSPENDED(card)) {
+			spin_unlock_irqrestore(&card->lock, flags);
+			schedule();
+			if (signal_pending(current)) {
+				if (!ret)
+					ret = -EAGAIN;
+				break;
+			}
+			continue;
+		}
+		swptr = dmabuf->swptr;
+		cnt = ali_get_available_read_data(state);
+		// this is to make the copy_to_user simpler below
+		if (cnt > (dmabuf->dmasize - swptr))
+			cnt = dmabuf->dmasize - swptr;
+		spin_unlock_irqrestore(&card->lock, flags);
+		if (cnt > count)
+			cnt = count;
+		/* Lop off the last two bits to force the code to always
+		 * write in full samples.  This keeps software that sets
+		 * O_NONBLOCK but doesn't check the return value of the
+		 * write call from getting things out of state where they
+		 * think a full 4 byte sample was written when really only
+		 * a portion was, resulting in odd sound and stereo
+		 * hysteresis.
+		 */
+		cnt &= ~0x3;
+		if (cnt <= 0) {
+			unsigned long tmo;
+			/*
+			 * Don't let us deadlock.  The ADC won't start if
+			 * dmabuf->trigger isn't set.  A call to SETTRIGGER
+			 * could have turned it off after we set it to on
+			 * previously.
+			 */
+			dmabuf->trigger = PCM_ENABLE_INPUT;
+			/*
+			 * This does three things.  Updates LVI to be correct,
+			 * makes sure the ADC is running, and updates the
+			 * hwptr.
+			 */
+			ali_update_lvi(state, 1);
+			if (file->f_flags & O_NONBLOCK) {
+				if (!ret)
+					ret = -EAGAIN;
+				goto done;
+			}
+			/* Set the timeout to how long it would take to fill
+			 * two of our buffers.  If we haven't been woke up
+			 * by then, then we know something is wrong.
+			 */
+			tmo = (dmabuf->dmasize * HZ * 2) / (dmabuf->rate * 4);
+			    
+			/* There are two situations when sleep_on_timeout returns, one is when
+			   the interrupt is serviced correctly and the process is waked up by
+			   ISR ON TIME. Another is when timeout is expired, which means that
+			   either interrupt is NOT serviced correctly (pending interrupt) or it
+			   is TOO LATE for the process to be scheduled to run (scheduler latency)
+			   which results in a (potential) buffer overrun. And worse, there is
+			   NOTHING we can do to prevent it. */
+			if (!schedule_timeout(tmo >= 2 ? tmo : 2)) {
+				printk(KERN_ERR
+				       "ali_audio: recording schedule timeout, "
+				       "dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
+				       dmabuf->dmasize, dmabuf->fragsize,
+				       dmabuf->count, dmabuf->hwptr,
+				       dmabuf->swptr);
+				/* a buffer overrun, we delay the recovery until next time the
+				   while loop begin and we REALLY have space to record */
+			}
+			if (signal_pending(current)) {
+				ret = ret ? ret : -ERESTARTSYS;
+				goto done;
+			}
+			continue;
+		}
+
+		if (copy_to_user(buffer, dmabuf->rawbuf + swptr, cnt)) {
+			if (!ret)
+				ret = -EFAULT;
+			goto done;
+		}
+
+		swptr = (swptr + cnt) % dmabuf->dmasize;
+		spin_lock_irqsave(&card->lock, flags);
+		if (PM_SUSPENDED(card)) {
+			spin_unlock_irqrestore(&card->lock, flags);
+			continue;
+		}
+		dmabuf->swptr = swptr;
+		dmabuf->count -= cnt;
+		spin_unlock_irqrestore(&card->lock, flags);
+		count -= cnt;
+		buffer += cnt;
+		ret += cnt;
+	}
+done:
+	ali_update_lvi(state, 1);
+	set_current_state(TASK_RUNNING);
+	remove_wait_queue(&dmabuf->wait, &waita);
+	return ret;
+}
+
+/* in this loop, dmabuf.count signifies the amount of data that is waiting to be dma to
+   the soundcard.  it is drained by the dma machine and filled by this loop. */
+static ssize_t ali_write(struct file *file,
+			 const char __user *buffer, size_t count, loff_t * ppos)
+{
+	struct ali_state *state = (struct ali_state *) file->private_data;
+	struct ali_card *card = state ? state->card : NULL;
+	struct dmabuf *dmabuf = &state->dmabuf;
+	ssize_t ret;
+	unsigned long flags;
+	unsigned int swptr = 0;
+	int cnt, x;
+	DECLARE_WAITQUEUE(waita, current);
+#ifdef DEBUG2
+	printk("ali_audio: ali_write called, count = %d\n", count);
+#endif
+	if (dmabuf->mapped)
+		return -ENXIO;
+	if (dmabuf->enable & ADC_RUNNING)
+		return -ENODEV;
+	if (codec_independent_spdif_locked > 0) {
+		if (!dmabuf->codec_spdifout_channel) {
+			dmabuf->ready = 0;
+			dmabuf->codec_spdifout_channel = card->alloc_codec_spdifout_channel(card);
+			if (!dmabuf->codec_spdifout_channel)
+				return -EBUSY;
+		}
+	} else {
+		if (controller_independent_spdif_locked > 0) {
+			if (!dmabuf->controller_spdifout_channel) {
+				dmabuf->ready = 0;
+				dmabuf->controller_spdifout_channel = card->alloc_controller_spdifout_channel(card);
+				if (!dmabuf->controller_spdifout_channel)
+					return -EBUSY;
+			}
+		} else {
+			if (!dmabuf->write_channel) {
+				dmabuf->ready = 0;
+				dmabuf->write_channel =
+				    card->alloc_pcm_channel(card);
+				if (!dmabuf->write_channel)
+					return -EBUSY;
+			}
+		}
+	}
+
+	if (codec_independent_spdif_locked > 0) {
+		if (!dmabuf->ready && (ret = prog_dmabuf(state, 2)))
+			return ret;
+	} else {
+		if (controller_independent_spdif_locked > 0) {
+			if (!dmabuf->ready && (ret = prog_dmabuf(state, 3)))
+				return ret;
+		} else {
+
+			if (!dmabuf->ready && (ret = prog_dmabuf(state, 0)))
+				return ret;
+		}
+	}
+	if (!access_ok(VERIFY_READ, buffer, count))
+		return -EFAULT;
+	ret = 0;
+	add_wait_queue(&dmabuf->wait, &waita);
+	while (count > 0) {
+		set_current_state(TASK_INTERRUPTIBLE);
+		spin_lock_irqsave(&state->card->lock, flags);
+		if (PM_SUSPENDED(card)) {
+			spin_unlock_irqrestore(&card->lock, flags);
+			schedule();
+			if (signal_pending(current)) {
+				if (!ret)
+					ret = -EAGAIN;
+				break;
+			}
+			continue;
+		}
+
+		swptr = dmabuf->swptr;
+		cnt = ali_get_free_write_space(state);
+		/* Bound the maximum size to how much we can copy to the
+		 * dma buffer before we hit the end.  If we have more to
+		 * copy then it will get done in a second pass of this
+		 * loop starting from the beginning of the buffer.
+		 */
+		if (cnt > (dmabuf->dmasize - swptr))
+			cnt = dmabuf->dmasize - swptr;
+		spin_unlock_irqrestore(&state->card->lock, flags);
+#ifdef DEBUG2
+		printk(KERN_INFO
+		       "ali_audio: ali_write: %d bytes available space\n",
+		       cnt);
+#endif
+		if (cnt > count)
+			cnt = count;
+		/* Lop off the last two bits to force the code to always
+		 * write in full samples.  This keeps software that sets
+		 * O_NONBLOCK but doesn't check the return value of the
+		 * write call from getting things out of state where they
+		 * think a full 4 byte sample was written when really only
+		 * a portion was, resulting in odd sound and stereo
+		 * hysteresis.
+		 */
+		cnt &= ~0x3;
+		if (cnt <= 0) {
+			unsigned long tmo;
+			// There is data waiting to be played
+			/*
+			 * Force the trigger setting since we would
+			 * deadlock with it set any other way
+			 */
+			if (codec_independent_spdif_locked > 0) {
+				dmabuf->trigger = SPDIF_ENABLE_OUTPUT;
+				ali_update_lvi(state, 2);
+			} else {
+				if (controller_independent_spdif_locked > 0) {
+					dmabuf->trigger = SPDIF_ENABLE_OUTPUT;
+					ali_update_lvi(state, 3);
+				} else {
+
+					dmabuf->trigger = PCM_ENABLE_OUTPUT;
+					ali_update_lvi(state, 0);
+				}
+			}
+			if (file->f_flags & O_NONBLOCK) {
+				if (!ret)
+					ret = -EAGAIN;
+				goto ret;
+			}
+			/* Not strictly correct but works */
+			tmo = (dmabuf->dmasize * HZ * 2) / (dmabuf->rate * 4);
+			/* There are two situations when sleep_on_timeout returns, one is when
+			   the interrupt is serviced correctly and the process is waked up by
+			   ISR ON TIME. Another is when timeout is expired, which means that
+			   either interrupt is NOT serviced correctly (pending interrupt) or it
+			   is TOO LATE for the process to be scheduled to run (scheduler latency)
+			   which results in a (potential) buffer underrun. And worse, there is
+			   NOTHING we can do to prevent it. */
+			   
+			/* FIXME - do timeout handling here !! */
+			schedule_timeout(tmo >= 2 ? tmo : 2);
+
+			if (signal_pending(current)) {
+				if (!ret)
+					ret = -ERESTARTSYS;
+				goto ret;
+			}
+			continue;
+		}
+		if (copy_from_user(dmabuf->rawbuf + swptr, buffer, cnt)) {
+			if (!ret)
+				ret = -EFAULT;
+			goto ret;
+		}
+
+		swptr = (swptr + cnt) % dmabuf->dmasize;
+		spin_lock_irqsave(&state->card->lock, flags);
+		if (PM_SUSPENDED(card)) {
+			spin_unlock_irqrestore(&card->lock, flags);
+			continue;
+		}
+
+		dmabuf->swptr = swptr;
+		dmabuf->count += cnt;
+		count -= cnt;
+		buffer += cnt;
+		ret += cnt;
+		spin_unlock_irqrestore(&state->card->lock, flags);
+	}
+	if (swptr % dmabuf->fragsize) {
+		x = dmabuf->fragsize - (swptr % dmabuf->fragsize);
+		memset(dmabuf->rawbuf + swptr, '\0', x);
+	}
+ret:
+	if (codec_independent_spdif_locked > 0) {
+		ali_update_lvi(state, 2);
+	} else {
+		if (controller_independent_spdif_locked > 0) {
+			ali_update_lvi(state, 3);
+		} else {
+			ali_update_lvi(state, 0);
+		}
+	}
+	set_current_state(TASK_RUNNING);
+	remove_wait_queue(&dmabuf->wait, &waita);
+	return ret;
+}
+
+/* No kernel lock - we have our own spinlock */
+static unsigned int ali_poll(struct file *file, struct poll_table_struct
+			     *wait)
+{
+	struct ali_state *state = (struct ali_state *) file->private_data;
+	struct dmabuf *dmabuf = &state->dmabuf;
+	unsigned long flags;
+	unsigned int mask = 0;
+	if (!dmabuf->ready)
+		return 0;
+	poll_wait(file, &dmabuf->wait, wait);
+	spin_lock_irqsave(&state->card->lock, flags);
+	ali_update_ptr(state);
+	if (file->f_mode & FMODE_READ && dmabuf->enable & ADC_RUNNING) {
+		if (dmabuf->count >= (signed) dmabuf->fragsize)
+			mask |= POLLIN | POLLRDNORM;
+	}
+	if (file->f_mode & FMODE_WRITE  && (dmabuf->enable & (DAC_RUNNING|CODEC_SPDIFOUT_RUNNING|CONTROLLER_SPDIFOUT_RUNNING))) {
+		if ((signed) dmabuf->dmasize >= dmabuf->count + (signed) dmabuf->fragsize)
+			mask |= POLLOUT | POLLWRNORM;
+	}
+	spin_unlock_irqrestore(&state->card->lock, flags);
+	return mask;
+}
+
+static int ali_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	struct ali_state *state = (struct ali_state *) file->private_data;
+	struct dmabuf *dmabuf = &state->dmabuf;
+	int ret = -EINVAL;
+	unsigned long size;
+	lock_kernel();
+	if (vma->vm_flags & VM_WRITE) {
+		if (!dmabuf->write_channel && (dmabuf->write_channel = state->card->alloc_pcm_channel(state->card)) == NULL) {
+			ret = -EBUSY;
+			goto out;
+		}
+	}
+	if (vma->vm_flags & VM_READ) {
+		if (!dmabuf->read_channel && (dmabuf->read_channel = state->card->alloc_rec_pcm_channel(state->card)) == NULL) {
+			ret = -EBUSY;
+			goto out;
+		}
+	}
+	if ((ret = prog_dmabuf(state, 0)) != 0)
+		goto out;
+	ret = -EINVAL;
+	if (vma->vm_pgoff != 0)
+		goto out;
+	size = vma->vm_end - vma->vm_start;
+	if (size > (PAGE_SIZE << dmabuf->buforder))
+		goto out;
+	ret = -EAGAIN;
+	if (remap_pfn_range(vma, vma->vm_start,
+				virt_to_phys(dmabuf->rawbuf) >> PAGE_SHIFT,
+				size, vma->vm_page_prot))
+		goto out;
+	dmabuf->mapped = 1;
+	dmabuf->trigger = 0;
+	ret = 0;
+out:
+	unlock_kernel();
+	return ret;
+}
+
+static int ali_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+	struct ali_state *state = (struct ali_state *) file->private_data;
+	struct ali_channel *c = NULL;
+	struct dmabuf *dmabuf = &state->dmabuf;
+	unsigned long flags;
+	audio_buf_info abinfo;
+	count_info cinfo;
+	unsigned int i_scr;
+	int val = 0, ret;
+	struct ac97_codec *codec = state->card->ac97_codec[0];
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+
+#ifdef DEBUG
+	printk("ali_audio: ali_ioctl, arg=0x%x, cmd=",
+	       arg ? *p : 0);
+#endif
+	switch (cmd) {
+	case OSS_GETVERSION:
+#ifdef DEBUG
+		printk("OSS_GETVERSION\n");
+#endif
+		return put_user(SOUND_VERSION, p);
+	case SNDCTL_DSP_RESET:
+#ifdef DEBUG
+		printk("SNDCTL_DSP_RESET\n");
+#endif
+		spin_lock_irqsave(&state->card->lock, flags);
+		if (dmabuf->enable == DAC_RUNNING) {
+			c = dmabuf->write_channel;
+			__stop_dac(state);
+		}
+		if (dmabuf->enable == ADC_RUNNING) {
+			c = dmabuf->read_channel;
+			__stop_adc(state);
+		}
+		if (dmabuf->enable == CODEC_SPDIFOUT_RUNNING) {
+			c = dmabuf->codec_spdifout_channel;
+			__stop_spdifout(state);
+		}
+		if (dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) {
+			c = dmabuf->controller_spdifout_channel;
+			__stop_spdifout(state);
+		}
+		if (c != NULL) {
+			outb(2, state->card->iobase + c->port + OFF_CR);	/* reset DMA machine */
+			outl(virt_to_bus(&c->sg[0]),
+			     state->card->iobase + c->port + OFF_BDBAR);
+			outb(0, state->card->iobase + c->port + OFF_CIV);
+			outb(0, state->card->iobase + c->port + OFF_LVI);
+		}
+
+		spin_unlock_irqrestore(&state->card->lock, flags);
+		synchronize_irq(state->card->pci_dev->irq);
+		dmabuf->ready = 0;
+		dmabuf->swptr = dmabuf->hwptr = 0;
+		dmabuf->count = dmabuf->total_bytes = 0;
+		return 0;
+	case SNDCTL_DSP_SYNC:
+#ifdef DEBUG
+		printk("SNDCTL_DSP_SYNC\n");
+#endif
+		if (codec_independent_spdif_locked > 0) {
+			if (dmabuf->enable != CODEC_SPDIFOUT_RUNNING
+			    || file->f_flags & O_NONBLOCK)
+				return 0;
+			if ((val = drain_spdifout(state, 1)))
+				return val;
+		} else {
+			if (controller_independent_spdif_locked > 0) {
+				if (dmabuf->enable !=
+				    CONTROLLER_SPDIFOUT_RUNNING
+				    || file->f_flags & O_NONBLOCK)
+					return 0;
+				if ((val = drain_spdifout(state, 1)))
+					return val;
+			} else {
+				if (dmabuf->enable != DAC_RUNNING
+				    || file->f_flags & O_NONBLOCK)
+					return 0;
+				if ((val = drain_dac(state, 1)))
+					return val;
+			}
+		}
+		dmabuf->total_bytes = 0;
+		return 0;
+	case SNDCTL_DSP_SPEED:	/* set smaple rate */
+#ifdef DEBUG
+		printk("SNDCTL_DSP_SPEED\n");
+#endif
+		if (get_user(val, p))
+			return -EFAULT;
+		if (val >= 0) {
+			if (file->f_mode & FMODE_WRITE) {
+				if ((state->card->ac97_status & SPDIF_ON)) {	/* S/PDIF Enabled */
+					/* RELTEK ALC650 only support 48000, need to check that */
+					if (ali_valid_spdif_rate(codec, val)) {
+						if (codec_independent_spdif_locked > 0) {
+							ali_set_spdif_output(state, -1, 0);
+							stop_spdifout(state);
+							dmabuf->ready = 0;
+							/* I add test codec independent spdif out */
+							spin_lock_irqsave(&state->card->lock, flags);
+							ali_set_codecspdifout_rate(state, val);	// I modified
+							spin_unlock_irqrestore(&state->card->lock, flags);
+							/* Set S/PDIF transmitter rate. */
+							i_scr = inl(state->card->iobase + ALI_SCR);
+							if ((i_scr & 0x00300000) == 0x00100000) {
+								ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked);
+							} else {
+								if ((i_scr&0x00300000)  == 0x00200000)
+								{
+									ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked);
+								} else {
+									if ((i_scr & 0x00300000) == 0x00300000) {
+										ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked);
+									} else {
+										ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked);
+									}
+								}
+							}
+
+							if (!(state->card->ac97_status & SPDIF_ON)) {
+								val = dmabuf->rate;
+							}
+						} else {
+							if (controller_independent_spdif_locked > 0) 
+							{
+								stop_spdifout(state);
+								dmabuf->ready = 0;
+								spin_lock_irqsave(&state->card->lock, flags);
+								ali_set_spdifout_rate(state, controller_independent_spdif_locked);
+								spin_unlock_irqrestore(&state->card->lock, flags);
+							} else {
+								/* Set DAC rate */
+								ali_set_spdif_output(state, -1, 0);
+								stop_dac(state);
+								dmabuf->ready = 0;
+								spin_lock_irqsave(&state->card->lock, flags);
+								ali_set_dac_rate(state, val);
+								spin_unlock_irqrestore(&state->card->lock, flags);
+								/* Set S/PDIF transmitter rate. */
+								ali_set_spdif_output(state, AC97_EA_SPSA_3_4, val);
+								if (!(state->card->ac97_status & SPDIF_ON))
+								{
+									val = dmabuf->rate;
+								}
+							}
+						}
+					} else {	/* Not a valid rate for S/PDIF, ignore it */
+						val = dmabuf->rate;
+					}
+				} else {
+					stop_dac(state);
+					dmabuf->ready = 0;
+					spin_lock_irqsave(&state->card->lock, flags);
+					ali_set_dac_rate(state, val);
+					spin_unlock_irqrestore(&state->card->lock, flags);
+				}
+			}
+			if (file->f_mode & FMODE_READ) {
+				stop_adc(state);
+				dmabuf->ready = 0;
+				spin_lock_irqsave(&state->card->lock, flags);
+				ali_set_adc_rate(state, val);
+				spin_unlock_irqrestore(&state->card->lock, flags);
+			}
+		}
+		return put_user(dmabuf->rate, p);
+	case SNDCTL_DSP_STEREO:	/* set stereo or mono channel */
+#ifdef DEBUG
+		printk("SNDCTL_DSP_STEREO\n");
+#endif
+		if (dmabuf->enable & DAC_RUNNING) {
+			stop_dac(state);
+		}
+		if (dmabuf->enable & ADC_RUNNING) {
+			stop_adc(state);
+		}
+		if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) {
+			stop_spdifout(state);
+		}
+		if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) {
+			stop_spdifout(state);
+		}
+		return put_user(1, p);
+	case SNDCTL_DSP_GETBLKSIZE:
+		if (file->f_mode & FMODE_WRITE) {
+			if (codec_independent_spdif_locked > 0) {
+				if (!dmabuf->ready && (val = prog_dmabuf(state, 2)))
+					return val;
+			} else {
+				if (controller_independent_spdif_locked > 0) {
+					if (!dmabuf->ready && (val = prog_dmabuf(state, 3)))
+						return val;
+				} else {
+					if (!dmabuf->ready && (val = prog_dmabuf(state, 0)))
+						return val;
+				}
+			}
+		}
+
+		if (file->f_mode & FMODE_READ) {
+			if (!dmabuf->ready && (val = prog_dmabuf(state, 1)))
+				return val;
+		}
+#ifdef DEBUG
+		printk("SNDCTL_DSP_GETBLKSIZE %d\n", dmabuf->userfragsize);
+#endif
+		return put_user(dmabuf->userfragsize, p);
+	case SNDCTL_DSP_GETFMTS:	/* Returns a mask of supported sample format */
+#ifdef DEBUG
+		printk("SNDCTL_DSP_GETFMTS\n");
+#endif
+		return put_user(AFMT_S16_LE, p);
+	case SNDCTL_DSP_SETFMT:	/* Select sample format */
+#ifdef DEBUG
+		printk("SNDCTL_DSP_SETFMT\n");
+#endif
+		return put_user(AFMT_S16_LE, p);
+	case SNDCTL_DSP_CHANNELS:	// add support 4,6 channel 
+#ifdef DEBUG
+		printk("SNDCTL_DSP_CHANNELS\n");
+#endif
+		if (get_user(val, p))
+			return -EFAULT;
+		if (val > 0) {
+			if (dmabuf->enable & DAC_RUNNING) {
+				stop_dac(state);
+			}
+			if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) {
+				stop_spdifout(state);
+			}
+			if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) {
+				stop_spdifout(state);
+			}
+			if (dmabuf->enable & ADC_RUNNING) {
+				stop_adc(state);
+			}
+		} else {
+			return put_user(state->card->channels, p);
+		}
+
+		i_scr = inl(state->card->iobase + ALI_SCR);
+		/* Current # of channels enabled */
+		if (i_scr & 0x00000100)
+			ret = 4;
+		else if (i_scr & 0x00000200)
+			ret = 6;
+		else
+			ret = 2;
+		switch (val) {
+		case 2:	/* 2 channels is always supported */
+			if (codec_independent_spdif_locked > 0) {
+				outl(((i_scr & 0xfffffcff) | 0x00100000), (state->card->iobase + ALI_SCR));
+			} else
+				outl((i_scr & 0xfffffcff), (state->card->iobase + ALI_SCR));
+			/* Do we need to change mixer settings????  */
+			break;
+		case 4:	/* Supported on some chipsets, better check first */
+			if (codec_independent_spdif_locked > 0) {
+				outl(((i_scr & 0xfffffcff) | 0x00000100 | 0x00200000), (state->card->iobase + ALI_SCR));
+			} else
+				outl(((i_scr & 0xfffffcff) | 0x00000100), (state->card->iobase + ALI_SCR));
+			break;
+		case 6:	/* Supported on some chipsets, better check first */
+			if (codec_independent_spdif_locked > 0) {
+				outl(((i_scr & 0xfffffcff) | 0x00000200 | 0x00008000 | 0x00300000), (state->card->iobase + ALI_SCR));
+			} else
+				outl(((i_scr & 0xfffffcff) | 0x00000200 | 0x00008000), (state->card->iobase + ALI_SCR));
+			break;
+		default:	/* nothing else is ever supported by the chipset */
+			val = ret;
+			break;
+		}
+		return put_user(val, p);
+	case SNDCTL_DSP_POST:	/* the user has sent all data and is notifying us */
+		/* we update the swptr to the end of the last sg segment then return */
+#ifdef DEBUG
+		printk("SNDCTL_DSP_POST\n");
+#endif
+		if (codec_independent_spdif_locked > 0) {
+			if (!dmabuf->ready || (dmabuf->enable != CODEC_SPDIFOUT_RUNNING))
+				return 0;
+		} else {
+			if (controller_independent_spdif_locked > 0) {
+				if (!dmabuf->ready || (dmabuf->enable != CONTROLLER_SPDIFOUT_RUNNING))
+					return 0;
+			} else {
+				if (!dmabuf->ready || (dmabuf->enable != DAC_RUNNING))
+					return 0;
+			}
+		}
+		if ((dmabuf->swptr % dmabuf->fragsize) != 0) {
+			val = dmabuf->fragsize - (dmabuf->swptr % dmabuf->fragsize);
+			dmabuf->swptr += val;
+			dmabuf->count += val;
+		}
+		return 0;
+	case SNDCTL_DSP_SUBDIVIDE:
+		if (dmabuf->subdivision)
+			return -EINVAL;
+		if (get_user(val, p))
+			return -EFAULT;
+		if (val != 1 && val != 2 && val != 4)
+			return -EINVAL;
+#ifdef DEBUG
+		printk("SNDCTL_DSP_SUBDIVIDE %d\n", val);
+#endif
+		dmabuf->subdivision = val;
+		dmabuf->ready = 0;
+		return 0;
+	case SNDCTL_DSP_SETFRAGMENT:
+		if (get_user(val, p))
+			return -EFAULT;
+		dmabuf->ossfragsize = 1 << (val & 0xffff);
+		dmabuf->ossmaxfrags = (val >> 16) & 0xffff;
+		if (!dmabuf->ossfragsize || !dmabuf->ossmaxfrags)
+			return -EINVAL;
+		/*
+		 * Bound the frag size into our allowed range of 256 - 4096
+		 */
+		if (dmabuf->ossfragsize < 256)
+			dmabuf->ossfragsize = 256;
+		else if (dmabuf->ossfragsize > 4096)
+			dmabuf->ossfragsize = 4096;
+		/*
+		 * The numfrags could be something reasonable, or it could
+		 * be 0xffff meaning "Give me as much as possible".  So,
+		 * we check the numfrags * fragsize doesn't exceed our
+		 * 64k buffer limit, nor is it less than our 8k minimum.
+		 * If it fails either one of these checks, then adjust the
+		 * number of fragments, not the size of them.  It's OK if
+		 * our number of fragments doesn't equal 32 or anything
+		 * like our hardware based number now since we are using
+		 * a different frag count for the hardware.  Before we get
+		 * into this though, bound the maxfrags to avoid overflow
+		 * issues.  A reasonable bound would be 64k / 256 since our
+		 * maximum buffer size is 64k and our minimum frag size is
+		 * 256.  On the other end, our minimum buffer size is 8k and
+		 * our maximum frag size is 4k, so the lower bound should
+		 * be 2.
+		 */
+		if (dmabuf->ossmaxfrags > 256)
+			dmabuf->ossmaxfrags = 256;
+		else if (dmabuf->ossmaxfrags < 2)
+			dmabuf->ossmaxfrags = 2;
+		val = dmabuf->ossfragsize * dmabuf->ossmaxfrags;
+		while (val < 8192) {
+			val <<= 1;
+			dmabuf->ossmaxfrags <<= 1;
+		}
+		while (val > 65536) {
+			val >>= 1;
+			dmabuf->ossmaxfrags >>= 1;
+		}
+		dmabuf->ready = 0;
+#ifdef DEBUG
+		printk("SNDCTL_DSP_SETFRAGMENT 0x%x, %d, %d\n", val,
+		       dmabuf->ossfragsize, dmabuf->ossmaxfrags);
+#endif
+		return 0;
+	case SNDCTL_DSP_GETOSPACE:
+		if (!(file->f_mode & FMODE_WRITE))
+			return -EINVAL;
+		if (codec_independent_spdif_locked > 0) {
+			if (!dmabuf->ready && (val = prog_dmabuf(state, 2)) != 0)
+				return val;
+		} else {
+			if (controller_independent_spdif_locked > 0) {
+				if (!dmabuf->ready && (val = prog_dmabuf(state, 3)) != 0)
+					return val;
+			} else {
+				if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0)
+					return val;
+			}
+		}
+		spin_lock_irqsave(&state->card->lock, flags);
+		ali_update_ptr(state);
+		abinfo.fragsize = dmabuf->userfragsize;
+		abinfo.fragstotal = dmabuf->userfrags;
+		if (dmabuf->mapped)
+			abinfo.bytes = dmabuf->dmasize;
+		else
+			abinfo.bytes = ali_get_free_write_space(state);
+		abinfo.fragments = abinfo.bytes / dmabuf->userfragsize;
+		spin_unlock_irqrestore(&state->card->lock, flags);
+#if defined(DEBUG) || defined(DEBUG_MMAP)
+		printk("SNDCTL_DSP_GETOSPACE %d, %d, %d, %d\n",
+		       abinfo.bytes, abinfo.fragsize, abinfo.fragments,
+		       abinfo.fragstotal);
+#endif
+		return copy_to_user(argp, &abinfo,
+				    sizeof(abinfo)) ? -EFAULT : 0;
+	case SNDCTL_DSP_GETOPTR:
+		if (!(file->f_mode & FMODE_WRITE))
+			return -EINVAL;
+		if (codec_independent_spdif_locked > 0) {
+			if (!dmabuf->ready && (val = prog_dmabuf(state, 2)) != 0)
+				return val;
+		} else {
+			if (controller_independent_spdif_locked > 0) {
+				if (!dmabuf->ready && (val = prog_dmabuf(state, 3)) != 0)
+					return val;
+			} else {
+				if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0)
+					return val;
+			}
+		}
+		spin_lock_irqsave(&state->card->lock, flags);
+		val = ali_get_free_write_space(state);
+		cinfo.bytes = dmabuf->total_bytes;
+		cinfo.ptr = dmabuf->hwptr;
+		cinfo.blocks = val / dmabuf->userfragsize;
+		if (codec_independent_spdif_locked > 0) {
+			if (dmabuf->mapped && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) {
+				dmabuf->count += val;
+				dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize;
+				__ali_update_lvi(state, 2);
+			}
+		} else {
+			if (controller_independent_spdif_locked > 0) {
+				if (dmabuf->mapped && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) {
+					dmabuf->count += val;
+					dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize;
+					__ali_update_lvi(state, 3);
+				}
+			} else {
+				if (dmabuf->mapped && (dmabuf->trigger & PCM_ENABLE_OUTPUT)) {
+					dmabuf->count += val;
+					dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize;
+					__ali_update_lvi(state, 0);
+				}
+			}
+		}
+		spin_unlock_irqrestore(&state->card->lock, flags);
+#if defined(DEBUG) || defined(DEBUG_MMAP)
+		printk("SNDCTL_DSP_GETOPTR %d, %d, %d, %d\n", cinfo.bytes,
+		       cinfo.blocks, cinfo.ptr, dmabuf->count);
+#endif
+		return copy_to_user(argp, &cinfo, sizeof(cinfo))? -EFAULT : 0;
+	case SNDCTL_DSP_GETISPACE:
+		if (!(file->f_mode & FMODE_READ))
+			return -EINVAL;
+		if (!dmabuf->ready && (val = prog_dmabuf(state, 1)) != 0)
+			return val;
+		spin_lock_irqsave(&state->card->lock, flags);
+		abinfo.bytes = ali_get_available_read_data(state);
+		abinfo.fragsize = dmabuf->userfragsize;
+		abinfo.fragstotal = dmabuf->userfrags;
+		abinfo.fragments = abinfo.bytes / dmabuf->userfragsize;
+		spin_unlock_irqrestore(&state->card->lock, flags);
+#if defined(DEBUG) || defined(DEBUG_MMAP)
+		printk("SNDCTL_DSP_GETISPACE %d, %d, %d, %d\n",
+		       abinfo.bytes, abinfo.fragsize, abinfo.fragments,
+		       abinfo.fragstotal);
+#endif
+		return copy_to_user(argp, &abinfo,
+				    sizeof(abinfo)) ? -EFAULT : 0;
+	case SNDCTL_DSP_GETIPTR:
+		if (!(file->f_mode & FMODE_READ))
+			return -EINVAL;
+		if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0)
+			return val;
+		spin_lock_irqsave(&state->card->lock, flags);
+		val = ali_get_available_read_data(state);
+		cinfo.bytes = dmabuf->total_bytes;
+		cinfo.blocks = val / dmabuf->userfragsize;
+		cinfo.ptr = dmabuf->hwptr;
+		if (dmabuf->mapped && (dmabuf->trigger & PCM_ENABLE_INPUT)) {
+			dmabuf->count -= val;
+			dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize;
+			__ali_update_lvi(state, 1);
+		}
+		spin_unlock_irqrestore(&state->card->lock, flags);
+#if defined(DEBUG) || defined(DEBUG_MMAP)
+		printk("SNDCTL_DSP_GETIPTR %d, %d, %d, %d\n", cinfo.bytes,
+		       cinfo.blocks, cinfo.ptr, dmabuf->count);
+#endif
+		return copy_to_user(argp, &cinfo, sizeof(cinfo))? -EFAULT: 0;
+	case SNDCTL_DSP_NONBLOCK:
+#ifdef DEBUG
+		printk("SNDCTL_DSP_NONBLOCK\n");
+#endif
+		file->f_flags |= O_NONBLOCK;
+		return 0;
+	case SNDCTL_DSP_GETCAPS:
+#ifdef DEBUG
+		printk("SNDCTL_DSP_GETCAPS\n");
+#endif
+		return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER |
+				DSP_CAP_MMAP | DSP_CAP_BIND, p);
+	case SNDCTL_DSP_GETTRIGGER:
+		val = 0;
+#ifdef DEBUG
+		printk("SNDCTL_DSP_GETTRIGGER 0x%x\n", dmabuf->trigger);
+#endif
+		return put_user(dmabuf->trigger, p);
+	case SNDCTL_DSP_SETTRIGGER:
+		if (get_user(val, p))
+			return -EFAULT;
+#if defined(DEBUG) || defined(DEBUG_MMAP)
+		printk("SNDCTL_DSP_SETTRIGGER 0x%x\n", val);
+#endif
+		if (!(val & PCM_ENABLE_INPUT) && dmabuf->enable == ADC_RUNNING) {
+			stop_adc(state);
+		}
+		if (!(val & PCM_ENABLE_OUTPUT) && dmabuf->enable == DAC_RUNNING) {
+			stop_dac(state);
+		}
+		if (!(val & SPDIF_ENABLE_OUTPUT) && dmabuf->enable == CODEC_SPDIFOUT_RUNNING) {
+			stop_spdifout(state);
+		}
+		if (!(val & SPDIF_ENABLE_OUTPUT) && dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) {
+			stop_spdifout(state);
+		}
+		dmabuf->trigger = val;
+		if (val & PCM_ENABLE_OUTPUT && !(dmabuf->enable & DAC_RUNNING)) {
+			if (!dmabuf->write_channel) {
+				dmabuf->ready = 0;
+				dmabuf->write_channel = state->card->alloc_pcm_channel(state->card);
+				if (!dmabuf->write_channel)
+					return -EBUSY;
+			}
+			if (!dmabuf->ready && (ret = prog_dmabuf(state, 0)))
+				return ret;
+			if (dmabuf->mapped) {
+				spin_lock_irqsave(&state->card->lock, flags);
+				ali_update_ptr(state);
+				dmabuf->count = 0;
+				dmabuf->swptr = dmabuf->hwptr;
+				dmabuf->count = ali_get_free_write_space(state);
+				dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize;
+				__ali_update_lvi(state, 0);
+				spin_unlock_irqrestore(&state->card->lock,
+						       flags);
+			} else
+				start_dac(state);
+		}
+		if (val & SPDIF_ENABLE_OUTPUT && !(dmabuf->enable & CODEC_SPDIFOUT_RUNNING)) {
+			if (!dmabuf->codec_spdifout_channel) {
+				dmabuf->ready = 0;
+				dmabuf->codec_spdifout_channel = state->card->alloc_codec_spdifout_channel(state->card);
+				if (!dmabuf->codec_spdifout_channel)
+					return -EBUSY;
+			}
+			if (!dmabuf->ready && (ret = prog_dmabuf(state, 2)))
+				return ret;
+			if (dmabuf->mapped) {
+				spin_lock_irqsave(&state->card->lock, flags);
+				ali_update_ptr(state);
+				dmabuf->count = 0;
+				dmabuf->swptr = dmabuf->hwptr;
+				dmabuf->count = ali_get_free_write_space(state);
+				dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize;
+				__ali_update_lvi(state, 2);
+				spin_unlock_irqrestore(&state->card->lock,
+						       flags);
+			} else
+				start_spdifout(state);
+		}
+		if (val & SPDIF_ENABLE_OUTPUT && !(dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)) {
+			if (!dmabuf->controller_spdifout_channel) {
+				dmabuf->ready = 0;
+				dmabuf->controller_spdifout_channel = state->card->alloc_controller_spdifout_channel(state->card);
+				if (!dmabuf->controller_spdifout_channel)
+					return -EBUSY;
+			}
+			if (!dmabuf->ready && (ret = prog_dmabuf(state, 3)))
+				return ret;
+			if (dmabuf->mapped) {
+				spin_lock_irqsave(&state->card->lock, flags);
+				ali_update_ptr(state);
+				dmabuf->count = 0;
+				dmabuf->swptr = dmabuf->hwptr;
+				dmabuf->count = ali_get_free_write_space(state);
+				dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize;
+				__ali_update_lvi(state, 3);
+				spin_unlock_irqrestore(&state->card->lock, flags);
+			} else
+				start_spdifout(state);
+		}
+		if (val & PCM_ENABLE_INPUT && !(dmabuf->enable & ADC_RUNNING)) {
+			if (!dmabuf->read_channel) {
+				dmabuf->ready = 0;
+				dmabuf->read_channel = state->card->alloc_rec_pcm_channel(state->card);
+				if (!dmabuf->read_channel)
+					return -EBUSY;
+			}
+			if (!dmabuf->ready && (ret = prog_dmabuf(state, 1)))
+				return ret;
+			if (dmabuf->mapped) {
+				spin_lock_irqsave(&state->card->lock,
+						  flags);
+				ali_update_ptr(state);
+				dmabuf->swptr = dmabuf->hwptr;
+				dmabuf->count = 0;
+				spin_unlock_irqrestore(&state->card->lock, flags);
+			}
+			ali_update_lvi(state, 1);
+			start_adc(state);
+		}
+		return 0;
+	case SNDCTL_DSP_SETDUPLEX:
+#ifdef DEBUG
+		printk("SNDCTL_DSP_SETDUPLEX\n");
+#endif
+		return -EINVAL;
+	case SNDCTL_DSP_GETODELAY:
+		if (!(file->f_mode & FMODE_WRITE))
+			return -EINVAL;
+		spin_lock_irqsave(&state->card->lock, flags);
+		ali_update_ptr(state);
+		val = dmabuf->count;
+		spin_unlock_irqrestore(&state->card->lock, flags);
+#ifdef DEBUG
+		printk("SNDCTL_DSP_GETODELAY %d\n", dmabuf->count);
+#endif
+		return put_user(val, p);
+	case SOUND_PCM_READ_RATE:
+#ifdef DEBUG
+		printk("SOUND_PCM_READ_RATE %d\n", dmabuf->rate);
+#endif
+		return put_user(dmabuf->rate, p);
+	case SOUND_PCM_READ_CHANNELS:
+#ifdef DEBUG
+		printk("SOUND_PCM_READ_CHANNELS\n");
+#endif
+		return put_user(2, p);
+	case SOUND_PCM_READ_BITS:
+#ifdef DEBUG
+		printk("SOUND_PCM_READ_BITS\n");
+#endif
+		return put_user(AFMT_S16_LE, p);
+	case SNDCTL_DSP_SETSPDIF:	/* Set S/PDIF Control register */
+#ifdef DEBUG
+		printk("SNDCTL_DSP_SETSPDIF\n");
+#endif
+		if (get_user(val, p))
+			return -EFAULT;
+		/* Check to make sure the codec supports S/PDIF transmitter */
+		if ((state->card->ac97_features & 4)) {
+			/* mask out the transmitter speed bits so the user can't set them */
+			val &= ~0x3000;
+			/* Add the current transmitter speed bits to the passed value */
+			ret = ali_ac97_get(codec, AC97_SPDIF_CONTROL);
+			val |= (ret & 0x3000);
+			ali_ac97_set(codec, AC97_SPDIF_CONTROL, val);
+			if (ali_ac97_get(codec, AC97_SPDIF_CONTROL) != val) {
+				printk(KERN_ERR "ali_audio: Unable to set S/PDIF configuration to 0x%04x.\n", val);
+				return -EFAULT;
+			}
+		}
+#ifdef DEBUG
+		else
+			printk(KERN_WARNING "ali_audio: S/PDIF transmitter not avalible.\n");
+#endif
+		return put_user(val, p);
+	case SNDCTL_DSP_GETSPDIF:	/* Get S/PDIF Control register */
+#ifdef DEBUG
+		printk("SNDCTL_DSP_GETSPDIF\n");
+#endif
+		if (get_user(val, p))
+			return -EFAULT;
+		/* Check to make sure the codec supports S/PDIF transmitter */
+		if (!(state->card->ac97_features & 4)) {
+#ifdef DEBUG
+			printk(KERN_WARNING "ali_audio: S/PDIF transmitter not avalible.\n");
+#endif
+			val = 0;
+		} else {
+			val = ali_ac97_get(codec, AC97_SPDIF_CONTROL);
+		}
+
+		return put_user(val, p);
+//end add support spdif out
+//add support 4,6 channel
+	case SNDCTL_DSP_GETCHANNELMASK:
+#ifdef DEBUG
+		printk("SNDCTL_DSP_GETCHANNELMASK\n");
+#endif
+		if (get_user(val, p))
+			return -EFAULT;
+		/* Based on AC'97 DAC support, not ICH hardware */
+		val = DSP_BIND_FRONT;
+		if (state->card->ac97_features & 0x0004)
+			val |= DSP_BIND_SPDIF;
+		if (state->card->ac97_features & 0x0080)
+			val |= DSP_BIND_SURR;
+		if (state->card->ac97_features & 0x0140)
+			val |= DSP_BIND_CENTER_LFE;
+		return put_user(val, p);
+	case SNDCTL_DSP_BIND_CHANNEL:
+#ifdef DEBUG
+		printk("SNDCTL_DSP_BIND_CHANNEL\n");
+#endif
+		if (get_user(val, p))
+			return -EFAULT;
+		if (val == DSP_BIND_QUERY) {
+			val = DSP_BIND_FRONT;	/* Always report this as being enabled */
+			if (state->card->ac97_status & SPDIF_ON)
+				val |= DSP_BIND_SPDIF;
+			else {
+				if (state->card->ac97_status & SURR_ON)
+					val |= DSP_BIND_SURR;
+				if (state->card->
+				    ac97_status & CENTER_LFE_ON)
+					val |= DSP_BIND_CENTER_LFE;
+			}
+		} else {	/* Not a query, set it */
+			if (!(file->f_mode & FMODE_WRITE))
+				return -EINVAL;
+			if (dmabuf->enable == DAC_RUNNING) {
+				stop_dac(state);
+			}
+			if (val & DSP_BIND_SPDIF) {	/* Turn on SPDIF */
+				/*  Ok, this should probably define what slots
+				 *  to use. For now, we'll only set it to the
+				 *  defaults:
+				 * 
+				 *   non multichannel codec maps to slots 3&4
+				 *   2 channel codec maps to slots 7&8
+				 *   4 channel codec maps to slots 6&9
+				 *   6 channel codec maps to slots 10&11
+				 *
+				 *  there should be some way for the app to
+				 *  select the slot assignment.
+				 */
+				i_scr = inl(state->card->iobase + ALI_SCR);
+				if (codec_independent_spdif_locked > 0) {
+
+					if ((i_scr & 0x00300000) == 0x00100000) {
+						ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked);
+					} else {
+						if ((i_scr & 0x00300000) == 0x00200000) {
+							ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked);
+						} else {
+							if ((i_scr & 0x00300000) == 0x00300000) {
+								ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked);
+							}
+						}
+					}
+				} else {	/* codec spdif out (pcm out share ) */
+					ali_set_spdif_output(state, AC97_EA_SPSA_3_4, dmabuf->rate);	//I do not modify
+				}
+
+				if (!(state->card->ac97_status & SPDIF_ON))
+					val &= ~DSP_BIND_SPDIF;
+			} else {
+				int mask;
+				int channels;
+				/* Turn off S/PDIF if it was on */
+				if (state->card->ac97_status & SPDIF_ON)
+					ali_set_spdif_output(state, -1, 0);
+				mask =
+				    val & (DSP_BIND_FRONT | DSP_BIND_SURR |
+					   DSP_BIND_CENTER_LFE);
+				switch (mask) {
+				case DSP_BIND_FRONT:
+					channels = 2;
+					break;
+				case DSP_BIND_FRONT | DSP_BIND_SURR:
+					channels = 4;
+					break;
+				case DSP_BIND_FRONT | DSP_BIND_SURR | DSP_BIND_CENTER_LFE:
+					channels = 6;
+					break;
+				default:
+					val = DSP_BIND_FRONT;
+					channels = 2;
+					break;
+				}
+				ali_set_dac_channels(state, channels);
+				/* check that they really got turned on */
+				if (!state->card->ac97_status & SURR_ON)
+					val &= ~DSP_BIND_SURR;
+				if (!state->card->
+				    ac97_status & CENTER_LFE_ON)
+					val &= ~DSP_BIND_CENTER_LFE;
+			}
+		}
+		return put_user(val, p);
+	case SNDCTL_DSP_MAPINBUF:
+	case SNDCTL_DSP_MAPOUTBUF:
+	case SNDCTL_DSP_SETSYNCRO:
+	case SOUND_PCM_WRITE_FILTER:
+	case SOUND_PCM_READ_FILTER:
+		return -EINVAL;
+	}
+	return -EINVAL;
+}
+
+static int ali_open(struct inode *inode, struct file *file)
+{
+	int i = 0;
+	struct ali_card *card = devs;
+	struct ali_state *state = NULL;
+	struct dmabuf *dmabuf = NULL;
+	unsigned int i_scr;
+	
+	/* find an available virtual channel (instance of /dev/dsp) */
+	
+	while (card != NULL) {
+
+		/*
+		 * If we are initializing and then fail, card could go
+		 * away unuexpectedly while we are in the for() loop.
+		 * So, check for card on each iteration before we check
+		 * for card->initializing to avoid a possible oops.
+		 * This usually only matters for times when the driver is
+		 * autoloaded by kmod.
+		 */
+		for (i = 0; i < 50 && card && card->initializing; i++) {
+			set_current_state(TASK_UNINTERRUPTIBLE);
+			schedule_timeout(HZ / 20);
+		}
+
+		for (i = 0; i < NR_HW_CH && card && !card->initializing; i++) {
+			if (card->states[i] == NULL) {
+				state = card->states[i] = (struct ali_state *) kmalloc(sizeof(struct ali_state), GFP_KERNEL);
+				if (state == NULL)
+					return -ENOMEM;
+				memset(state, 0, sizeof(struct ali_state));
+				dmabuf = &state->dmabuf;
+				goto found_virt;
+			}
+		}
+		card = card->next;
+	}
+
+	/* no more virtual channel avaiable */
+	if (!state)
+		return -ENODEV;
+found_virt:
+	/* initialize the virtual channel */
+
+	state->virt = i;
+	state->card = card;
+	state->magic = ALI5455_STATE_MAGIC;
+	init_waitqueue_head(&dmabuf->wait);
+	init_MUTEX(&state->open_sem);
+	file->private_data = state;
+	dmabuf->trigger = 0;
+	/* allocate hardware channels */
+	if (file->f_mode & FMODE_READ) {
+		if ((dmabuf->read_channel =
+		     card->alloc_rec_pcm_channel(card)) == NULL) {
+			kfree(card->states[i]);
+			card->states[i] = NULL;
+			return -EBUSY;
+		}
+		dmabuf->trigger |= PCM_ENABLE_INPUT;
+		ali_set_adc_rate(state, 8000);
+	}
+	if (file->f_mode & FMODE_WRITE) {
+		if (codec_independent_spdif_locked > 0) {
+			if ((dmabuf->codec_spdifout_channel = card->alloc_codec_spdifout_channel(card)) == NULL) {
+				kfree(card->states[i]);
+				card->states[i] = NULL;
+				return -EBUSY;
+			}
+			dmabuf->trigger |= SPDIF_ENABLE_OUTPUT;
+			ali_set_codecspdifout_rate(state, codec_independent_spdif_locked);	//It must add
+			i_scr = inl(state->card->iobase + ALI_SCR);
+			if ((i_scr & 0x00300000) == 0x00100000) {
+				ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked);
+			} else {
+				if ((i_scr & 0x00300000) == 0x00200000) {
+					ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked);
+				} else {
+					if ((i_scr & 0x00300000) == 0x00300000) {
+						ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked);
+					} else {
+						ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked);
+					}
+				}
+
+			}
+		} else {
+			if (controller_independent_spdif_locked > 0) {
+				if ((dmabuf->controller_spdifout_channel = card->alloc_controller_spdifout_channel(card)) == NULL) {
+					kfree(card->states[i]);
+					card->states[i] = NULL;
+					return -EBUSY;
+				}
+				dmabuf->trigger |= SPDIF_ENABLE_OUTPUT;
+				ali_set_spdifout_rate(state, controller_independent_spdif_locked);
+			} else {
+				if ((dmabuf->write_channel = card->alloc_pcm_channel(card)) == NULL) {
+					kfree(card->states[i]);
+					card->states[i] = NULL;
+					return -EBUSY;
+				}
+				/* Initialize to 8kHz?  What if we don't support 8kHz? */
+				/*  Let's change this to check for S/PDIF stuff */
+
+				dmabuf->trigger |= PCM_ENABLE_OUTPUT;
+				if (codec_pcmout_share_spdif_locked) {
+					ali_set_dac_rate(state, codec_pcmout_share_spdif_locked);
+					ali_set_spdif_output(state, AC97_EA_SPSA_3_4, codec_pcmout_share_spdif_locked);
+				} else {
+					ali_set_dac_rate(state, 8000);
+				}
+			}
+
+		}
+	}
+
+	/* set default sample format. According to OSS Programmer's Guide  /dev/dsp
+	   should be default to unsigned 8-bits, mono, with sample rate 8kHz and
+	   /dev/dspW will accept 16-bits sample, but we don't support those so we
+	   set it immediately to stereo and 16bit, which is all we do support */
+	dmabuf->fmt |= ALI5455_FMT_16BIT | ALI5455_FMT_STEREO;
+	dmabuf->ossfragsize = 0;
+	dmabuf->ossmaxfrags = 0;
+	dmabuf->subdivision = 0;
+	state->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
+	outl(0x00000000, card->iobase + ALI_INTERRUPTCR);
+	outl(0x00000000, card->iobase + ALI_INTERRUPTSR);
+	return nonseekable_open(inode, file);
+}
+
+static int ali_release(struct inode *inode, struct file *file)
+{
+	struct ali_state *state = (struct ali_state *) file->private_data;
+	struct ali_card *card = state->card;
+	struct dmabuf *dmabuf = &state->dmabuf;
+	unsigned long flags;
+	lock_kernel();
+	
+	/* stop DMA state machine and free DMA buffers/channels */
+	if (dmabuf->trigger & PCM_ENABLE_OUTPUT)
+		drain_dac(state, 0);
+
+	if (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)
+		drain_spdifout(state, 0);
+	
+	if (dmabuf->trigger & PCM_ENABLE_INPUT)
+		stop_adc(state);
+	
+	spin_lock_irqsave(&card->lock, flags);
+	dealloc_dmabuf(state);
+	if (file->f_mode & FMODE_WRITE) {
+		if (codec_independent_spdif_locked > 0) {
+			state->card->free_pcm_channel(state->card, dmabuf->codec_spdifout_channel->num);
+		} else {
+			if (controller_independent_spdif_locked > 0)
+				state->card->free_pcm_channel(state->card,
+							      dmabuf->controller_spdifout_channel->num);
+			else state->card->free_pcm_channel(state->card,
+							      dmabuf->write_channel->num);
+		}
+	}
+	if (file->f_mode & FMODE_READ)
+		state->card->free_pcm_channel(state->card, dmabuf->read_channel->num);
+
+	state->card->states[state->virt] = NULL;
+	kfree(state);
+	spin_unlock_irqrestore(&card->lock, flags);
+	unlock_kernel();
+	return 0;
+}
+
+static /*const */ struct file_operations ali_audio_fops = {
+	.owner		= THIS_MODULE, 
+	.llseek		= no_llseek, 
+	.read		= ali_read,
+	.write		= ali_write, 
+	.poll		= ali_poll,
+	.ioctl		= ali_ioctl,
+	.mmap		= ali_mmap,
+	.open		= ali_open,
+	.release	= ali_release,
+};
+
+/* Read AC97 codec registers */
+static u16 ali_ac97_get(struct ac97_codec *dev, u8 reg)
+{
+	struct ali_card *card = dev->private_data;
+	int count1 = 100;
+	char val;
+	unsigned short int data = 0, count, addr1, addr2 = 0;
+
+	spin_lock(&card->ac97_lock);
+	while (count1-- && (inl(card->iobase + ALI_CAS) & 0x80000000))
+		udelay(1);
+
+	addr1 = reg;
+	reg |= 0x0080;
+	for (count = 0; count < 0x7f; count++) {
+		val = inb(card->iobase + ALI_CSPSR);
+		if (val & 0x08)
+			break;
+	}
+	if (count == 0x7f)
+	{
+		spin_unlock(&card->ac97_lock);
+		return -1;
+	}
+	outw(reg, (card->iobase + ALI_CPR) + 2);
+	for (count = 0; count < 0x7f; count++) {
+		val = inb(card->iobase + ALI_CSPSR);
+		if (val & 0x02) {
+			data = inw(card->iobase + ALI_SPR);
+			addr2 = inw((card->iobase + ALI_SPR) + 2);
+			break;
+		}
+	}
+	spin_unlock(&card->ac97_lock);
+	if (count == 0x7f)
+		return -1;
+	if (addr2 != addr1)
+		return -1;
+	return ((u16) data);
+}
+
+/* write ac97 codec register   */
+
+static void ali_ac97_set(struct ac97_codec *dev, u8 reg, u16 data)
+{
+	struct ali_card *card = dev->private_data;
+	int count1 = 100;
+	char val;
+	unsigned short int count;
+
+	spin_lock(&card->ac97_lock);
+	while (count1-- && (inl(card->iobase + ALI_CAS) & 0x80000000))
+		udelay(1);
+
+	for (count = 0; count < 0x7f; count++) {
+		val = inb(card->iobase + ALI_CSPSR);
+		if (val & 0x08)
+			break;
+	}
+	if (count == 0x7f) {
+		printk(KERN_WARNING "ali_ac97_set: AC97 codec register access timed out. \n");
+		spin_unlock(&card->ac97_lock);
+		return;
+	}
+	outw(data, (card->iobase + ALI_CPR));
+	outb(reg, (card->iobase + ALI_CPR) + 2);
+	for (count = 0; count < 0x7f; count++) {
+		val = inb(card->iobase + ALI_CSPSR);
+		if (val & 0x01)
+			break;
+	}
+	spin_unlock(&card->ac97_lock);
+	if (count == 0x7f)
+		printk(KERN_WARNING "ali_ac97_set: AC97 codec register access timed out. \n");
+	return;
+}
+
+/* OSS /dev/mixer file operation methods */
+
+static int ali_open_mixdev(struct inode *inode, struct file *file)
+{
+	int i;
+	int minor = iminor(inode);
+	struct ali_card *card = devs;
+	for (card = devs; card != NULL; card = card->next) {
+		/*
+		 * If we are initializing and then fail, card could go
+		 * away unuexpectedly while we are in the for() loop.
+		 * So, check for card on each iteration before we check
+		 * for card->initializing to avoid a possible oops.
+		 * This usually only matters for times when the driver is
+		 * autoloaded by kmod.
+		 */
+		for (i = 0; i < 50 && card && card->initializing; i++) {
+			set_current_state(TASK_UNINTERRUPTIBLE);
+			schedule_timeout(HZ / 20);
+		}
+		for (i = 0; i < NR_AC97 && card && !card->initializing; i++)
+			if (card->ac97_codec[i] != NULL
+			    && card->ac97_codec[i]->dev_mixer == minor) {
+				file->private_data = card->ac97_codec[i];
+				return nonseekable_open(inode, file);
+			}
+	}
+	return -ENODEV;
+}
+
+static int ali_ioctl_mixdev(struct inode *inode,
+			    struct file *file,
+			    unsigned int cmd, unsigned long arg)
+{
+	struct ac97_codec *codec = (struct ac97_codec *) file->private_data;
+	return codec->mixer_ioctl(codec, cmd, arg);
+}
+
+static /*const */ struct file_operations ali_mixer_fops = {
+	.owner	= THIS_MODULE, 
+	.llseek	= no_llseek, 
+	.ioctl	= ali_ioctl_mixdev,
+	.open	= ali_open_mixdev,
+};
+
+/* AC97 codec initialisation.  These small functions exist so we don't
+   duplicate code between module init and apm resume */
+
+static inline int ali_ac97_exists(struct ali_card *card, int ac97_number)
+{
+	unsigned int i = 1;
+	u32 reg = inl(card->iobase + ALI_RTSR);
+	if (ac97_number) {
+		while (i < 100) {
+
+			reg = inl(card->iobase + ALI_RTSR);
+			if (reg & 0x40) {
+				break;
+			} else {
+				outl(reg | 0x00000040,
+				     card->iobase + 0x34);
+				udelay(1);
+			}
+			i++;
+		}
+
+	} else {
+		while (i < 100) {
+			reg = inl(card->iobase + ALI_RTSR);
+			if (reg & 0x80) {
+				break;
+			} else {
+				outl(reg | 0x00000080,
+				     card->iobase + 0x34);
+				udelay(1);
+			}
+			i++;
+		}
+	}
+
+	if (ac97_number)
+		return reg & 0x40;
+	else
+		return reg & 0x80;
+}
+
+static inline int ali_ac97_enable_variable_rate(struct ac97_codec *codec)
+{
+	ali_ac97_set(codec, AC97_EXTENDED_STATUS, 9);
+	ali_ac97_set(codec, AC97_EXTENDED_STATUS, ali_ac97_get(codec, AC97_EXTENDED_STATUS) | 0xE800);
+	return (ali_ac97_get(codec, AC97_EXTENDED_STATUS) & 1);
+}
+
+
+static int ali_ac97_probe_and_powerup(struct ali_card *card, struct ac97_codec *codec)
+{
+	/* Returns 0 on failure */
+	int i;
+	u16 addr;
+	if (ac97_probe_codec(codec) == 0)
+		return 0;
+	/* ac97_probe_codec is success ,then begin to init codec */
+	ali_ac97_set(codec, AC97_RESET, 0xffff);
+	if (card->channel[0].used == 1) {
+		ali_ac97_set(codec, AC97_RECORD_SELECT, 0x0000);
+		ali_ac97_set(codec, AC97_LINEIN_VOL, 0x0808);
+		ali_ac97_set(codec, AC97_RECORD_GAIN, 0x0F0F);
+	}
+
+	if (card->channel[2].used == 1)	//if MICin then init codec
+	{
+		ali_ac97_set(codec, AC97_RECORD_SELECT, 0x0000);
+		ali_ac97_set(codec, AC97_MIC_VOL, 0x8808);
+		ali_ac97_set(codec, AC97_RECORD_GAIN, 0x0F0F);
+		ali_ac97_set(codec, AC97_RECORD_GAIN_MIC, 0x0000);
+	}
+
+	ali_ac97_set(codec, AC97_MASTER_VOL_STEREO, 0x0000);
+	ali_ac97_set(codec, AC97_HEADPHONE_VOL, 0x0000);
+	ali_ac97_set(codec, AC97_PCMOUT_VOL, 0x0000);
+	ali_ac97_set(codec, AC97_CD_VOL, 0x0808);
+	ali_ac97_set(codec, AC97_VIDEO_VOL, 0x0808);
+	ali_ac97_set(codec, AC97_AUX_VOL, 0x0808);
+	ali_ac97_set(codec, AC97_PHONE_VOL, 0x8048);
+	ali_ac97_set(codec, AC97_PCBEEP_VOL, 0x0000);
+	ali_ac97_set(codec, AC97_GENERAL_PURPOSE, AC97_GP_MIX);
+	ali_ac97_set(codec, AC97_MASTER_VOL_MONO, 0x0000);
+	ali_ac97_set(codec, 0x38, 0x0000);
+	addr = ali_ac97_get(codec, 0x2a);
+	ali_ac97_set(codec, 0x2a, addr | 0x0001);
+	addr = ali_ac97_get(codec, 0x2a);
+	addr = ali_ac97_get(codec, 0x28);
+	ali_ac97_set(codec, 0x2c, 0xbb80);
+	addr = ali_ac97_get(codec, 0x2c);
+	/* power it all up */
+	ali_ac97_set(codec, AC97_POWER_CONTROL,
+		     ali_ac97_get(codec, AC97_POWER_CONTROL) & ~0x7f00);
+	/* wait for analog ready */
+	for (i = 10; i && ((ali_ac97_get(codec, AC97_POWER_CONTROL) & 0xf) != 0xf); i--) {
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		schedule_timeout(HZ / 20);
+	}
+	/* FIXME !! */
+	i++;
+	return i;
+}
+
+
+/* I clone ali5455(2.4.7 )  not clone i810_audio(2.4.18)  */
+
+static int ali_reset_5455(struct ali_card *card)
+{
+	outl(0x80000003, card->iobase + ALI_SCR);
+	outl(0x83838383, card->iobase + ALI_FIFOCR1);
+	outl(0x83838383, card->iobase + ALI_FIFOCR2);
+	if (controller_pcmout_share_spdif_locked > 0) {
+		outl((inl(card->iobase + ALI_SPDIFICS) | 0x00000001),
+		     card->iobase + ALI_SPDIFICS);
+		outl(0x0408000a, card->iobase + ALI_INTERFACECR);
+	} else {
+		if (codec_independent_spdif_locked > 0) {
+			outl((inl(card->iobase + ALI_SCR) | 0x00100000), card->iobase + ALI_SCR);	// now I select slot 7 & 8
+			outl(0x00200000, card->iobase + ALI_INTERFACECR);	//enable codec independent spdifout 
+		} else
+			outl(0x04080002, card->iobase + ALI_INTERFACECR);
+	}
+
+	outl(0x00000000, card->iobase + ALI_INTERRUPTCR);
+	outl(0x00000000, card->iobase + ALI_INTERRUPTSR);
+	if (controller_independent_spdif_locked > 0)
+		outl((inl(card->iobase + ALI_SPDIFICS) | 0x00000001),
+		     card->iobase + ALI_SPDIFICS);
+	return 1;
+}
+
+
+static int ali_ac97_random_init_stuff(struct ali_card
+				      *card)
+{
+	u32 reg = inl(card->iobase + ALI_SCR);
+	int i = 0;
+	reg = inl(card->iobase + ALI_SCR);
+	if ((reg & 2) == 0)	/* Cold required */
+		reg |= 2;
+	else
+		reg |= 1;	/* Warm */
+	reg &= ~0x80000000;	/* ACLink on */
+	outl(reg, card->iobase + ALI_SCR);
+
+	while (i < 10) {
+		if ((inl(card->iobase + 0x18) & (1 << 1)) == 0)
+			break;
+		current->state = TASK_UNINTERRUPTIBLE;
+		schedule_timeout(HZ / 20);
+		i++;
+	}
+	if (i == 10) {
+		printk(KERN_ERR "ali_audio: AC'97 reset failed.\n");
+		return 0;
+	}
+
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	schedule_timeout(HZ / 2);
+	return 1;
+}
+
+/* AC97 codec initialisation. */
+
+static int __devinit ali_ac97_init(struct ali_card *card)
+{
+	int num_ac97 = 0;
+	int total_channels = 0;
+	struct ac97_codec *codec;
+	u16 eid;
+
+	if (!ali_ac97_random_init_stuff(card))
+		return 0;
+
+	/* Number of channels supported */
+	/* What about the codec?  Just because the ICH supports */
+	/* multiple channels doesn't mean the codec does.       */
+	/* we'll have to modify this in the codec section below */
+	/* to reflect what the codec has.                       */
+	/* ICH and ICH0 only support 2 channels so don't bother */
+	/* to check....                                         */
+	inl(card->iobase + ALI_CPR);
+	card->channels = 2;
+
+	for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
+
+		/* Assume codec isn't available until we go through the
+		 * gauntlet below */
+		card->ac97_codec[num_ac97] = NULL;
+		/* The ICH programmer's reference says you should   */
+		/* check the ready status before probing. So we chk */
+		/*   What do we do if it's not ready?  Wait and try */
+		/*   again, or abort?                               */
+		if (!ali_ac97_exists(card, num_ac97)) {
+			if (num_ac97 == 0)
+				printk(KERN_ERR "ali_audio: Primary codec not ready.\n");
+			break;
+		}
+
+		if ((codec = ac97_alloc_codec()) == NULL)
+			return -ENOMEM;
+		/* initialize some basic codec information, other fields will be filled
+		   in ac97_probe_codec */
+		codec->private_data = card;
+		codec->id = num_ac97;
+		codec->codec_read = ali_ac97_get;
+		codec->codec_write = ali_ac97_set;
+		if (!ali_ac97_probe_and_powerup(card, codec)) {
+			printk(KERN_ERR "ali_audio: timed out waiting for codec %d analog ready",
+			     num_ac97);
+			kfree(codec);
+			break;	/* it didn't work */
+		}
+		
+		/* Store state information about S/PDIF transmitter */
+		card->ac97_status = 0;
+		/* Don't attempt to get eid until powerup is complete */
+		eid = ali_ac97_get(codec, AC97_EXTENDED_ID);
+		if (eid == 0xFFFF) {
+			printk(KERN_ERR "ali_audio: no codec attached ?\n");
+			kfree(codec);
+			break;
+		}
+
+		card->ac97_features = eid;
+		/* Now check the codec for useful features to make up for
+		   the dumbness of the ali5455 hardware engine */
+		if (!(eid & 0x0001))
+			printk(KERN_WARNING
+			       "ali_audio: only 48Khz playback available.\n");
+		else {
+			if (!ali_ac97_enable_variable_rate(codec)) {
+				printk(KERN_WARNING
+				       "ali_audio: Codec refused to allow VRA, using 48Khz only.\n");
+				card->ac97_features &= ~1;
+			}
+		}
+
+		/* Determine how many channels the codec(s) support   */
+		/*   - The primary codec always supports 2            */
+		/*   - If the codec supports AMAP, surround DACs will */
+		/*     automaticlly get assigned to slots.            */
+		/*     * Check for surround DACs and increment if     */
+		/*       found.                                       */
+		/*   - Else check if the codec is revision 2.2        */
+		/*     * If surround DACs exist, assign them to slots */
+		/*       and increment channel count.                 */
+
+		/* All of this only applies to ICH2 and above. ICH    */
+		/* and ICH0 only support 2 channels.  ICH2 will only  */
+		/* support multiple codecs in a "split audio" config. */
+		/* as described above.                                */
+
+		/* TODO: Remove all the debugging messages!           */
+
+		if ((eid & 0xc000) == 0)	/* primary codec */
+			total_channels += 2;
+		if ((codec->dev_mixer = register_sound_mixer(&ali_mixer_fops, -1)) < 0) {
+			printk(KERN_ERR "ali_audio: couldn't register mixer!\n");
+			kfree(codec);
+			break;
+		}
+		card->ac97_codec[num_ac97] = codec;
+	}
+	/* pick the minimum of channels supported by ICHx or codec(s) */
+	card->channels = (card->channels > total_channels) ? total_channels : card->channels;
+	return num_ac97;
+}
+
+static void __devinit ali_configure_clocking(void)
+{
+	struct ali_card *card;
+	struct ali_state *state;
+	struct dmabuf *dmabuf;
+	unsigned int i, offset, new_offset;
+	unsigned long flags;
+	card = devs;
+
+	/* We could try to set the clocking for multiple cards, but can you even have
+	 * more than one ali in a machine?  Besides, clocking is global, so unless
+	 * someone actually thinks more than one ali in a machine is possible and
+	 * decides to rewrite that little bit, setting the rate for more than one card
+	 * is a waste of time.
+	 */
+	if (card != NULL) {
+		state = card->states[0] = (struct ali_state *)
+		    kmalloc(sizeof(struct ali_state), GFP_KERNEL);
+		if (state == NULL)
+			return;
+		memset(state, 0, sizeof(struct ali_state));
+		dmabuf = &state->dmabuf;
+		dmabuf->write_channel = card->alloc_pcm_channel(card);
+		state->virt = 0;
+		state->card = card;
+		state->magic = ALI5455_STATE_MAGIC;
+		init_waitqueue_head(&dmabuf->wait);
+		init_MUTEX(&state->open_sem);
+		dmabuf->fmt = ALI5455_FMT_STEREO | ALI5455_FMT_16BIT;
+		dmabuf->trigger = PCM_ENABLE_OUTPUT;
+		ali_set_dac_rate(state, 48000);
+		if (prog_dmabuf(state, 0) != 0)
+			goto config_out_nodmabuf;
+		
+		if (dmabuf->dmasize < 16384)
+			goto config_out;
+		
+		dmabuf->count = dmabuf->dmasize;
+		outb(31, card->iobase + dmabuf->write_channel->port + OFF_LVI);
+
+		local_irq_save(flags);
+		start_dac(state);
+		offset = ali_get_dma_addr(state, 0);
+		mdelay(50);
+		new_offset = ali_get_dma_addr(state, 0);
+		stop_dac(state);
+		
+		outb(2, card->iobase + dmabuf->write_channel->port + OFF_CR);
+		local_irq_restore(flags);
+
+		i = new_offset - offset;
+
+		if (i == 0)
+			goto config_out;
+		i = i / 4 * 20;
+		if (i > 48500 || i < 47500) {
+			clocking = clocking * clocking / i;
+		}
+config_out:
+		dealloc_dmabuf(state);
+config_out_nodmabuf:
+		state->card->free_pcm_channel(state->card, state->dmabuf. write_channel->num);
+		kfree(state);
+		card->states[0] = NULL;
+	}
+}
+
+/* install the driver, we do not allocate hardware channel nor DMA buffer now, they are defered 
+   until "ACCESS" time (in prog_dmabuf called by open/read/write/ioctl/mmap) */
+
+static int __devinit ali_probe(struct pci_dev *pci_dev,
+			       const struct pci_device_id *pci_id)
+{
+	struct ali_card *card;
+	if (pci_enable_device(pci_dev))
+		return -EIO;
+	if (pci_set_dma_mask(pci_dev, ALI5455_DMA_MASK)) {
+		printk(KERN_ERR "ali5455: architecture does not support"
+		       " 32bit PCI busmaster DMA\n");
+		return -ENODEV;
+	}
+
+	if ((card = kmalloc(sizeof(struct ali_card), GFP_KERNEL)) == NULL) {
+		printk(KERN_ERR "ali_audio: out of memory\n");
+		return -ENOMEM;
+	}
+	memset(card, 0, sizeof(*card));
+	card->initializing = 1;
+	card->iobase = pci_resource_start(pci_dev, 0);
+	card->pci_dev = pci_dev;
+	card->pci_id = pci_id->device;
+	card->irq = pci_dev->irq;
+	card->next = devs;
+	card->magic = ALI5455_CARD_MAGIC;
+#ifdef CONFIG_PM
+	card->pm_suspended = 0;
+#endif
+	spin_lock_init(&card->lock);
+	spin_lock_init(&card->ac97_lock);
+	devs = card;
+	pci_set_master(pci_dev);
+	printk(KERN_INFO "ali: %s found at IO 0x%04lx, IRQ %d\n",
+	       card_names[pci_id->driver_data], card->iobase, card->irq);
+	card->alloc_pcm_channel = ali_alloc_pcm_channel;
+	card->alloc_rec_pcm_channel = ali_alloc_rec_pcm_channel;
+	card->alloc_rec_mic_channel = ali_alloc_rec_mic_channel;
+	card->alloc_codec_spdifout_channel = ali_alloc_codec_spdifout_channel;
+	card->alloc_controller_spdifout_channel = ali_alloc_controller_spdifout_channel;
+	card->free_pcm_channel = ali_free_pcm_channel;
+	card->channel[0].offset = 0;
+	card->channel[0].port = 0x40;
+	card->channel[0].num = 0;
+	card->channel[1].offset = 0;
+	card->channel[1].port = 0x50;
+	card->channel[1].num = 1;
+	card->channel[2].offset = 0;
+	card->channel[2].port = 0x60;
+	card->channel[2].num = 2;
+	card->channel[3].offset = 0;
+	card->channel[3].port = 0x70;
+	card->channel[3].num = 3;
+	card->channel[4].offset = 0;
+	card->channel[4].port = 0xb0;
+	card->channel[4].num = 4;
+	/* claim our iospace and irq */
+	request_region(card->iobase, 256, card_names[pci_id->driver_data]);
+	if (request_irq(card->irq, &ali_interrupt, SA_SHIRQ,
+			card_names[pci_id->driver_data], card)) {
+		printk(KERN_ERR "ali_audio: unable to allocate irq %d\n",
+		       card->irq);
+		release_region(card->iobase, 256);
+		kfree(card);
+		return -ENODEV;
+	}
+
+	if (ali_reset_5455(card) <= 0) {
+		unregister_sound_dsp(card->dev_audio);
+		release_region(card->iobase, 256);
+		free_irq(card->irq, card);
+		kfree(card);
+		return -ENODEV;
+	}
+
+	/* initialize AC97 codec and register /dev/mixer */
+	if (ali_ac97_init(card) < 0) {
+		release_region(card->iobase, 256);
+		free_irq(card->irq, card);
+		kfree(card);
+		return -ENODEV;
+	}
+	
+	pci_set_drvdata(pci_dev, card);
+	
+	if (clocking == 0) {
+		clocking = 48000;
+		ali_configure_clocking();
+	}
+
+	/* register /dev/dsp */
+	if ((card->dev_audio = register_sound_dsp(&ali_audio_fops, -1)) < 0) {
+		int i;
+		printk(KERN_ERR"ali_audio: couldn't register DSP device!\n");
+		release_region(card->iobase, 256);
+		free_irq(card->irq, card);
+		for (i = 0; i < NR_AC97; i++)
+			if (card->ac97_codec[i] != NULL) {
+				unregister_sound_mixer(card->ac97_codec[i]->dev_mixer);
+				kfree(card->ac97_codec[i]);
+			}
+		kfree(card);
+		return -ENODEV;
+	}
+	card->initializing = 0;
+	return 0;
+}
+
+static void __devexit ali_remove(struct pci_dev *pci_dev)
+{
+	int i;
+	struct ali_card *card = pci_get_drvdata(pci_dev);
+	/* free hardware resources */
+	free_irq(card->irq, devs);
+	release_region(card->iobase, 256);
+	/* unregister audio devices */
+	for (i = 0; i < NR_AC97; i++)
+		if (card->ac97_codec[i] != NULL) {
+			unregister_sound_mixer(card->ac97_codec[i]->
+					       dev_mixer);
+			ac97_release_codec(card->ac97_codec[i]);
+			card->ac97_codec[i] = NULL;
+		}
+	unregister_sound_dsp(card->dev_audio);
+	kfree(card);
+}
+
+#ifdef CONFIG_PM
+static int ali_pm_suspend(struct pci_dev *dev, pm_message_t pm_state)
+{
+	struct ali_card *card = pci_get_drvdata(dev);
+	struct ali_state *state;
+	unsigned long flags;
+	struct dmabuf *dmabuf;
+	int i, num_ac97;
+
+	if (!card)
+		return 0;
+	spin_lock_irqsave(&card->lock, flags);
+	card->pm_suspended = 1;
+	for (i = 0; i < NR_HW_CH; i++) {
+		state = card->states[i];
+		if (!state)
+			continue;
+		/* this happens only if there are open files */
+		dmabuf = &state->dmabuf;
+		if (dmabuf->enable & DAC_RUNNING ||
+		    (dmabuf->count
+		     && (dmabuf->trigger & PCM_ENABLE_OUTPUT))) {
+			state->pm_saved_dac_rate = dmabuf->rate;
+			stop_dac(state);
+		} else {
+			state->pm_saved_dac_rate = 0;
+		}
+		if (dmabuf->enable & ADC_RUNNING) {
+			state->pm_saved_adc_rate = dmabuf->rate;
+			stop_adc(state);
+		} else {
+			state->pm_saved_adc_rate = 0;
+		}
+		dmabuf->ready = 0;
+		dmabuf->swptr = dmabuf->hwptr = 0;
+		dmabuf->count = dmabuf->total_bytes = 0;
+	}
+
+	spin_unlock_irqrestore(&card->lock, flags);
+	/* save mixer settings */
+	for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
+		struct ac97_codec *codec = card->ac97_codec[num_ac97];
+		if (!codec)
+			continue;
+		for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
+			if ((supported_mixer(codec, i)) && (codec->read_mixer)) {
+				card->pm_saved_mixer_settings[i][num_ac97] = codec->read_mixer(codec, i);
+			}
+		}
+	}
+	pci_save_state(dev);	/* XXX do we need this? */
+	pci_disable_device(dev);	/* disable busmastering */
+	pci_set_power_state(dev, 3);	/* Zzz. */
+	return 0;
+}
+
+
+static int ali_pm_resume(struct pci_dev *dev)
+{
+	int num_ac97, i = 0;
+	struct ali_card *card = pci_get_drvdata(dev);
+	pci_enable_device(dev);
+	pci_restore_state(dev);
+	/* observation of a toshiba portege 3440ct suggests that the 
+	   hardware has to be more or less completely reinitialized from
+	   scratch after an apm suspend.  Works For Me.   -dan */
+	ali_ac97_random_init_stuff(card);
+	for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
+		struct ac97_codec *codec = card->ac97_codec[num_ac97];
+		/* check they haven't stolen the hardware while we were
+		   away */
+		if (!codec || !ali_ac97_exists(card, num_ac97)) {
+			if (num_ac97)
+				continue;
+			else
+				BUG();
+		}
+		if (!ali_ac97_probe_and_powerup(card, codec))
+			BUG();
+		if ((card->ac97_features & 0x0001)) {
+			/* at probe time we found we could do variable
+			   rates, but APM suspend has made it forget
+			   its magical powers */
+			if (!ali_ac97_enable_variable_rate(codec))
+				BUG();
+		}
+		/* we lost our mixer settings, so restore them */
+		for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
+			if (supported_mixer(codec, i)) {
+				int val = card->pm_saved_mixer_settings[i][num_ac97];
+				codec->mixer_state[i] = val;
+				codec->write_mixer(codec, i,
+						   (val & 0xff),
+						   ((val >> 8) & 0xff));
+			}
+		}
+	}
+
+	/* we need to restore the sample rate from whatever it was */
+	for (i = 0; i < NR_HW_CH; i++) {
+		struct ali_state *state = card->states[i];
+		if (state) {
+			if (state->pm_saved_adc_rate)
+				ali_set_adc_rate(state, state->pm_saved_adc_rate);
+			if (state->pm_saved_dac_rate)
+				ali_set_dac_rate(state, state->pm_saved_dac_rate);
+		}
+	}
+
+	card->pm_suspended = 0;
+	/* any processes that were reading/writing during the suspend
+	   probably ended up here */
+	for (i = 0; i < NR_HW_CH; i++) {
+		struct ali_state *state = card->states[i];
+		if (state)
+			wake_up(&state->dmabuf.wait);
+	}
+	return 0;
+}
+#endif				/* CONFIG_PM */
+
+MODULE_AUTHOR("");
+MODULE_DESCRIPTION("ALI 5455 audio support");
+MODULE_LICENSE("GPL");
+module_param(clocking, int, 0);
+/* FIXME: bool? */
+module_param(strict_clocking, uint, 0);
+module_param(codec_pcmout_share_spdif_locked, uint, 0);
+module_param(codec_independent_spdif_locked, uint, 0);
+module_param(controller_pcmout_share_spdif_locked, uint, 0);
+module_param(controller_independent_spdif_locked, uint, 0);
+#define ALI5455_MODULE_NAME "ali5455"
+static struct pci_driver ali_pci_driver = {
+	.name		= ALI5455_MODULE_NAME,
+	.id_table	= ali_pci_tbl,
+	.probe		= ali_probe,
+	.remove		= __devexit_p(ali_remove),
+#ifdef CONFIG_PM
+	.suspend	= ali_pm_suspend,
+	.resume		= ali_pm_resume,
+#endif				/* CONFIG_PM */
+};
+
+static int __init ali_init_module(void)
+{
+	printk(KERN_INFO "ALI 5455 + AC97 Audio, version "
+	       DRIVER_VERSION ", " __TIME__ " " __DATE__ "\n");
+
+	if (codec_independent_spdif_locked > 0) {
+		if (codec_independent_spdif_locked == 32000
+		    || codec_independent_spdif_locked == 44100
+		    || codec_independent_spdif_locked == 48000) {
+			printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", codec_independent_spdif_locked);
+		} else {
+			printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n");
+			codec_independent_spdif_locked = 0;
+		}
+	}
+	if (controller_independent_spdif_locked > 0) {
+		if (controller_independent_spdif_locked == 32000
+		    || controller_independent_spdif_locked == 44100
+		    || controller_independent_spdif_locked == 48000) {
+			printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", controller_independent_spdif_locked);
+		} else {
+			printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n");
+			controller_independent_spdif_locked = 0;
+		}
+	}
+
+	if (codec_pcmout_share_spdif_locked > 0) {
+		if (codec_pcmout_share_spdif_locked == 32000
+		    || codec_pcmout_share_spdif_locked == 44100
+		    || codec_pcmout_share_spdif_locked == 48000) {
+			printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", codec_pcmout_share_spdif_locked);
+		} else {
+			printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n");
+			codec_pcmout_share_spdif_locked = 0;
+		}
+	}
+	if (controller_pcmout_share_spdif_locked > 0) {
+		if (controller_pcmout_share_spdif_locked == 32000
+		    || controller_pcmout_share_spdif_locked == 44100
+		    || controller_pcmout_share_spdif_locked == 48000) {
+			printk(KERN_INFO "ali_audio: Enabling controller S/PDIF at sample rate %dHz.\n", controller_pcmout_share_spdif_locked);
+		} else {
+			printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n");
+			controller_pcmout_share_spdif_locked = 0;
+		}
+	}
+	return pci_register_driver(&ali_pci_driver);
+}
+
+static void __exit ali_cleanup_module(void)
+{
+	pci_unregister_driver(&ali_pci_driver);
+}
+
+module_init(ali_init_module);
+module_exit(ali_cleanup_module);
+/*
+Local Variables:
+c-basic-offset: 8
+End:
+*/