more scheduled OSS driver removal

This patch contains the scheduled removal of OSS drivers that:
- have ALSA drivers for the same hardware without known regressions and
- whose Kconfig options have been removed in 2.6.20.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 1662 deletions

diff --git a/sound/oss/nm256_audio.c b/sound/oss/nm256_audio.c
deleted file mode 100644
index 44cd1550500..00000000000
--- a/sound/oss/nm256_audio.c
+++ /dev/null
@@ -1,1662 +0,0 @@
-/* 
- * Audio driver for the NeoMagic 256AV and 256ZX chipsets in native
- * mode, with AC97 mixer support.
- *
- * Overall design and parts of this code stolen from vidc_*.c and
- * skeleton.c.
- *
- * Yeah, there are a lot of magic constants in here.  You tell ME what
- * they are.  I just get this stuff psychically, remember? 
- *
- * This driver was written by someone who wishes to remain anonymous. 
- * It is in the public domain, so share and enjoy.  Try to make a profit
- * off of it; go on, I dare you.  
- *
- * Changes:
- * 11-10-2000	Bartlomiej Zolnierkiewicz <bkz@linux-ide.org>
- *		Added some __init
- * 19-04-2001	Marcus Meissner <mm@caldera.de>
- *		Ported to 2.4 PCI API.
- */
-
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include "sound_config.h"
-
-static int nm256_debug;
-static int force_load;
-
-#include "nm256.h"
-#include "nm256_coeff.h"
-
-/* 
- * The size of the playback reserve.  When the playback buffer has less
- * than NM256_PLAY_WMARK_SIZE bytes to output, we request a new
- * buffer.
- */
-#define NM256_PLAY_WMARK_SIZE 512
-
-static struct audio_driver nm256_audio_driver;
-
-static int nm256_grabInterrupt (struct nm256_info *card);
-static int nm256_releaseInterrupt (struct nm256_info *card);
-static irqreturn_t nm256_interrupt (int irq, void *dev_id);
-static irqreturn_t nm256_interrupt_zx (int irq, void *dev_id);
-
-/* These belong in linux/pci.h. */
-#define PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO 0x8005
-#define PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO 0x8006
-#define PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO 0x8016
-
-/* List of cards.  */
-static struct nm256_info *nmcard_list;
-
-/* Release the mapped-in memory for CARD.  */
-static void
-nm256_release_ports (struct nm256_info *card)
-{
-    int x;
-
-    for (x = 0; x < 2; x++) {
-	if (card->port[x].ptr != NULL) {
-	    iounmap (card->port[x].ptr);
-	    card->port[x].ptr = NULL;
-	}
-    }
-}
-
-/* 
- * Map in the memory ports for CARD, if they aren't already mapped in
- * and have been configured.  If successful, a zero value is returned;
- * otherwise any previously mapped-in areas are released and a non-zero
- * value is returned.
- *
- * This is invoked twice, once for each port.  Ideally it would only be
- * called once, but we now need to map in the second port in order to
- * check how much memory the card has on the 256ZX.
- */
-static int
-nm256_remap_ports (struct nm256_info *card)
-{
-    int x;
-
-    for (x = 0; x < 2; x++) {
-	if (card->port[x].ptr == NULL && card->port[x].end_offset > 0) {
-	    u32 physaddr 
-		= card->port[x].physaddr + card->port[x].start_offset;
-	    u32 size 
-		= card->port[x].end_offset - card->port[x].start_offset;
-
-	    card->port[x].ptr = ioremap_nocache (physaddr, size);
-						  
-	    if (card->port[x].ptr == NULL) {
-		printk (KERN_ERR "NM256: Unable to remap port %d\n", x + 1);
-		nm256_release_ports (card);
-		return -1;
-	    }
-	}
-    }
-    return 0;
-}
-
-/* Locate the card in our list. */
-static struct nm256_info *
-nm256_find_card (int dev)
-{
-    struct nm256_info *card;
-
-    for (card = nmcard_list; card != NULL; card = card->next_card)
-	if (card->dev[0] == dev || card->dev[1] == dev)
-	    return card;
-
-    return NULL;
-}
-
-/*
- * Ditto, but find the card struct corresponding to the mixer device DEV 
- * instead. 
- */
-static struct nm256_info *
-nm256_find_card_for_mixer (int dev)
-{
-    struct nm256_info *card;
-
-    for (card = nmcard_list; card != NULL; card = card->next_card)
-	if (card->mixer_oss_dev == dev)
-	    return card;
-
-    return NULL;
-}
-
-static int usecache;
-static int buffertop;
-
-/* Check to see if we're using the bank of cached coefficients. */
-static int
-nm256_cachedCoefficients (struct nm256_info *card)
-{
-    return usecache;
-}
-
-/* The actual rates supported by the card. */
-static int samplerates[9] = {
-    8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000, 99999999
-};
-
-/*
- * Set the card samplerate, word size and stereo mode to correspond to
- * the settings in the CARD struct for the specified device in DEV.
- * We keep two separate sets of information, one for each device; the
- * hardware is not actually configured until a read or write is
- * attempted.
- */
-
-static int
-nm256_setInfo (int dev, struct nm256_info *card)
-{
-    int x;
-    int w;
-    int targetrate;
-
-    if (card->dev[0] == dev)
-	w = 0;
-    else if (card->dev[1] == dev)
-	w = 1;
-    else
-	return -ENODEV;
-
-    targetrate = card->sinfo[w].samplerate;
-
-    if ((card->sinfo[w].bits != 8 && card->sinfo[w].bits != 16)
-	|| targetrate < samplerates[0]
-	|| targetrate > samplerates[7])
-	return -EINVAL;
-
-    for (x = 0; x < 8; x++)
-	if (targetrate < ((samplerates[x] + samplerates[x + 1]) / 2))
-	    break;
-
-    if (x < 8) {
-	u8 ratebits = ((x << 4) & NM_RATE_MASK);
-	if (card->sinfo[w].bits == 16)
-	    ratebits |= NM_RATE_BITS_16;
-	if (card->sinfo[w].stereo)
-	    ratebits |= NM_RATE_STEREO;
-
-	card->sinfo[w].samplerate = samplerates[x];
-
-
-	if (card->dev_for_play == dev && card->playing) {
-	    if (nm256_debug)
-		printk (KERN_DEBUG "Setting play ratebits to 0x%x\n",
-			ratebits);
-	    nm256_loadCoefficient (card, 0, x);
-	    nm256_writePort8 (card, 2,
-			      NM_PLAYBACK_REG_OFFSET + NM_RATE_REG_OFFSET,
-			      ratebits);
-	}
-
-	if (card->dev_for_record == dev && card->recording) {
-	    if (nm256_debug)
-		printk (KERN_DEBUG "Setting record ratebits to 0x%x\n",
-			ratebits);
-	    nm256_loadCoefficient (card, 1, x);
-	    nm256_writePort8 (card, 2,
-			      NM_RECORD_REG_OFFSET + NM_RATE_REG_OFFSET,
-			      ratebits);
-	}
-	return 0;
-    }
-    else
-	return -EINVAL;
-}
-
-/* Start the play process going. */
-static void
-startPlay (struct nm256_info *card)
-{
-    if (! card->playing) {
-	card->playing = 1;
-	if (nm256_grabInterrupt (card) == 0) {
-	    nm256_setInfo (card->dev_for_play, card);
-
-	    /* Enable playback engine and interrupts. */
-	    nm256_writePort8 (card, 2, NM_PLAYBACK_ENABLE_REG,
-			      NM_PLAYBACK_ENABLE_FLAG | NM_PLAYBACK_FREERUN);
-
-	    /* Enable both channels. */
-	    nm256_writePort16 (card, 2, NM_AUDIO_MUTE_REG, 0x0);
-	}
-    }
-}
-
-/* 
- * Request one chunk of AMT bytes from the recording device.  When the
- * operation is complete, the data will be copied into BUFFER and the
- * function DMAbuf_inputintr will be invoked.
- */
-
-static void
-nm256_startRecording (struct nm256_info *card, char *buffer, u32 amt)
-{
-    u32 endpos;
-    int enableEngine = 0;
-    u32 ringsize = card->recordBufferSize;
-    unsigned long flags;
-
-    if (amt > (ringsize / 2)) {
-	/*
-	 * Of course this won't actually work right, because the
-	 * caller is going to assume we will give what we got asked
-	 * for.
-	 */
-	printk (KERN_ERR "NM256: Read request too large: %d\n", amt);
-	amt = ringsize / 2;
-    }
-
-    if (amt < 8) {
-	printk (KERN_ERR "NM256: Read request too small; %d\n", amt);
-	return;
-    }
-
-    spin_lock_irqsave(&card->lock,flags);
-    /*
-     * If we're not currently recording, set up the start and end registers
-     * for the recording engine.
-     */
-    if (! card->recording) {
-	card->recording = 1;
-	if (nm256_grabInterrupt (card) == 0) {
-	    card->curRecPos = 0;
-	    nm256_setInfo (card->dev_for_record, card);
-	    nm256_writePort32 (card, 2, NM_RBUFFER_START, card->abuf2);
-	    nm256_writePort32 (card, 2, NM_RBUFFER_END,
-				 card->abuf2 + ringsize);
-
-	    nm256_writePort32 (card, 2, NM_RBUFFER_CURRP,
-				 card->abuf2 + card->curRecPos);
-	    enableEngine = 1;
-	}
-	else {
-	    /* Not sure what else to do here.  */
-	    spin_unlock_irqrestore(&card->lock,flags);
-	    return;
-	}
-    }
-
-    /* 
-     * If we happen to go past the end of the buffer a bit (due to a
-     * delayed interrupt) it's OK.  So might as well set the watermark
-     * right at the end of the data we want.
-     */
-    endpos = card->abuf2 + ((card->curRecPos + amt) % ringsize);
-
-    card->recBuf = buffer;
-    card->requestedRecAmt = amt;
-    nm256_writePort32 (card, 2, NM_RBUFFER_WMARK, endpos);
-    /* Enable recording engine and interrupts. */
-    if (enableEngine)
-	nm256_writePort8 (card, 2, NM_RECORD_ENABLE_REG,
-			    NM_RECORD_ENABLE_FLAG | NM_RECORD_FREERUN);
-
-    spin_unlock_irqrestore(&card->lock,flags);
-}
-
-/* Stop the play engine. */
-static void
-stopPlay (struct nm256_info *card)
-{
-    /* Shut off sound from both channels. */
-    nm256_writePort16 (card, 2, NM_AUDIO_MUTE_REG,
-		       NM_AUDIO_MUTE_LEFT | NM_AUDIO_MUTE_RIGHT);
-    /* Disable play engine. */
-    nm256_writePort8 (card, 2, NM_PLAYBACK_ENABLE_REG, 0);
-    if (card->playing) {
-	nm256_releaseInterrupt (card);
-
-	/* Reset the relevant state bits. */
-	card->playing = 0;
-	card->curPlayPos = 0;
-    }
-}
-
-/* Stop recording. */
-static void
-stopRecord (struct nm256_info *card)
-{
-    /* Disable recording engine. */
-    nm256_writePort8 (card, 2, NM_RECORD_ENABLE_REG, 0);
-
-    if (card->recording) {
-	nm256_releaseInterrupt (card);
-
-	card->recording = 0;
-	card->curRecPos = 0;
-    }
-}
-
-/*
- * Ring buffers, man.  That's where the hip-hop, wild-n-wooly action's at.
- * 1972?  (Well, I suppose it was cheep-n-easy to implement.)
- *
- * Write AMT bytes of BUFFER to the playback ring buffer, and start the
- * playback engine running.  It will only accept up to 1/2 of the total
- * size of the ring buffer.  No check is made that we're about to overwrite
- * the currently-playing sample.
- */
-
-static void
-nm256_write_block (struct nm256_info *card, char *buffer, u32 amt)
-{
-    u32 ringsize = card->playbackBufferSize;
-    u32 endstop;
-    unsigned long flags;
-
-    if (amt > (ringsize / 2)) {
-	printk (KERN_ERR "NM256: Write request too large: %d\n", amt);
-	amt = (ringsize / 2);
-    }
-
-    if (amt < NM256_PLAY_WMARK_SIZE) {
-	printk (KERN_ERR "NM256: Write request too small: %d\n", amt);
-	return;
-    }
-
-    card->curPlayPos %= ringsize;
-
-    card->requested_amt = amt;
-
-    spin_lock_irqsave(&card->lock,flags);
-
-    if ((card->curPlayPos + amt) >= ringsize) {
-	u32 rem = ringsize - card->curPlayPos;
-
-	nm256_writeBuffer8 (card, buffer, 1,
-			      card->abuf1 + card->curPlayPos,
-			      rem);
-	if (amt > rem)
-	    nm256_writeBuffer8 (card, buffer + rem, 1, card->abuf1,
-				  amt - rem);
-    } 
-    else
-	nm256_writeBuffer8 (card, buffer, 1,
-			      card->abuf1 + card->curPlayPos,
-			      amt);
-
-    /*
-     * Setup the start-n-stop-n-limit registers, and start that engine
-     * goin'. 
-     *
-     * Normally we just let it wrap around to avoid the click-click
-     * action scene.
-     */
-    if (! card->playing) {
-	/* The PBUFFER_END register in this case points to one sample
-	   before the end of the buffer. */
-	int w = (card->dev_for_play == card->dev[0] ? 0 : 1);
-	int sampsize = (card->sinfo[w].bits == 16 ? 2 : 1);
-
-	if (card->sinfo[w].stereo)
-	    sampsize *= 2;
-
-	/* Need to set the not-normally-changing-registers up. */
-	nm256_writePort32 (card, 2, NM_PBUFFER_START,
-			     card->abuf1 + card->curPlayPos);
-	nm256_writePort32 (card, 2, NM_PBUFFER_END,
-			     card->abuf1 + ringsize - sampsize);
-	nm256_writePort32 (card, 2, NM_PBUFFER_CURRP,
-			     card->abuf1 + card->curPlayPos);
-    }
-    endstop = (card->curPlayPos + amt - NM256_PLAY_WMARK_SIZE) % ringsize;
-    nm256_writePort32 (card, 2, NM_PBUFFER_WMARK, card->abuf1 + endstop);
-
-    if (! card->playing)
-	startPlay (card);
-
-    spin_unlock_irqrestore(&card->lock,flags);
-}
-
-/*  We just got a card playback interrupt; process it.  */
-static void
-nm256_get_new_block (struct nm256_info *card)
-{
-    /* Check to see how much got played so far. */
-    u32 amt = nm256_readPort32 (card, 2, NM_PBUFFER_CURRP) - card->abuf1;
-
-    if (amt >= card->playbackBufferSize) {
-	printk (KERN_ERR "NM256: Sound playback pointer invalid!\n");
-	amt = 0;
-    }
-
-    if (amt < card->curPlayPos)
-	amt = (card->playbackBufferSize - card->curPlayPos) + amt;
-    else
-	amt -= card->curPlayPos;
-
-    if (card->requested_amt > (amt + NM256_PLAY_WMARK_SIZE)) {
-	u32 endstop =
-	    card->curPlayPos + card->requested_amt - NM256_PLAY_WMARK_SIZE;
-	nm256_writePort32 (card, 2, NM_PBUFFER_WMARK, card->abuf1 + endstop);
-    } 
-    else {
-	card->curPlayPos += card->requested_amt;
-	/* Get a new block to write.  This will eventually invoke
-	   nm256_write_block () or stopPlay ().  */
-	DMAbuf_outputintr (card->dev_for_play, 1);
-    }
-}
-
-/* 
- * Read the last-recorded block from the ring buffer, copy it into the
- * saved buffer pointer, and invoke DMAuf_inputintr() with the recording
- * device. 
- */
-
-static void
-nm256_read_block (struct nm256_info *card)
-{
-    /* Grab the current position of the recording pointer. */
-    u32 currptr = nm256_readPort32 (card, 2, NM_RBUFFER_CURRP) - card->abuf2;
-    u32 amtToRead = card->requestedRecAmt;
-    u32 ringsize = card->recordBufferSize;
-
-    if (currptr >= card->recordBufferSize) {
-	printk (KERN_ERR "NM256: Sound buffer record pointer invalid!\n");
-        currptr = 0;
-    }
-
-    /*
-     * This test is probably redundant; we shouldn't be here unless
-     * it's true.
-     */
-    if (card->recording) {
-	/* If we wrapped around, copy everything from the start of our
-	   recording buffer to the end of the buffer. */
-	if (currptr < card->curRecPos) {
-	    u32 amt = min (ringsize - card->curRecPos, amtToRead);
-
-	    nm256_readBuffer8 (card, card->recBuf, 1,
-				 card->abuf2 + card->curRecPos,
-				 amt);
-	    amtToRead -= amt;
-	    card->curRecPos += amt;
-	    card->recBuf += amt;
-	    if (card->curRecPos == ringsize)
-		card->curRecPos = 0;
-	}
-
-	if ((card->curRecPos < currptr) && (amtToRead > 0)) {
-	    u32 amt = min (currptr - card->curRecPos, amtToRead);
-	    nm256_readBuffer8 (card, card->recBuf, 1,
-				 card->abuf2 + card->curRecPos, amt);
-	    card->curRecPos = ((card->curRecPos + amt) % ringsize);
-	}
-	card->recBuf = NULL;
-	card->requestedRecAmt = 0;
-	DMAbuf_inputintr (card->dev_for_record);
-    }
-}
-
-/*
- * Initialize the hardware. 
- */
-static void
-nm256_initHw (struct nm256_info *card)
-{
-    /* Reset everything. */
-    nm256_writePort8 (card, 2, 0x0, 0x11);
-    nm256_writePort16 (card, 2, 0x214, 0);
-
-    stopRecord (card);
-    stopPlay (card);
-}
-
-/* 
- * Handle a potential interrupt for the device referred to by DEV_ID. 
- *
- * I don't like the cut-n-paste job here either between the two routines,
- * but there are sufficient differences between the two interrupt handlers
- * that parameterizing it isn't all that great either.  (Could use a macro,
- * I suppose...yucky bleah.)
- */
-
-static irqreturn_t
-nm256_interrupt (int irq, void *dev_id)
-{
-    struct nm256_info *card = (struct nm256_info *)dev_id;
-    u16 status;
-    static int badintrcount;
-    int handled = 0;
-
-    if ((card == NULL) || (card->magsig != NM_MAGIC_SIG)) {
-	printk (KERN_ERR "NM256: Bad card pointer\n");
-	return IRQ_NONE;
-    }
-
-    status = nm256_readPort16 (card, 2, NM_INT_REG);
-
-    /* Not ours. */
-    if (status == 0) {
-	if (badintrcount++ > 1000) {
-	    /*
-	     * I'm not sure if the best thing is to stop the card from
-	     * playing or just release the interrupt (after all, we're in
-	     * a bad situation, so doing fancy stuff may not be such a good
-	     * idea).
-	     *
-	     * I worry about the card engine continuing to play noise
-	     * over and over, however--that could become a very
-	     * obnoxious problem.  And we know that when this usually
-	     * happens things are fairly safe, it just means the user's
-	     * inserted a PCMCIA card and someone's spamming us with IRQ 9s.
-	     */
-
-	    handled = 1;
-	    if (card->playing)
-		stopPlay (card);
-	    if (card->recording)
-		stopRecord (card);
-	    badintrcount = 0;
-	}
-	return IRQ_RETVAL(handled);
-    }
-
-    badintrcount = 0;
-
-    /* Rather boring; check for individual interrupts and process them. */
-
-    if (status & NM_PLAYBACK_INT) {
-	handled = 1;
-	status &= ~NM_PLAYBACK_INT;
-	NM_ACK_INT (card, NM_PLAYBACK_INT);
-
-	if (card->playing)
-	    nm256_get_new_block (card);
-    }
-
-    if (status & NM_RECORD_INT) {
-	handled = 1;
-	status &= ~NM_RECORD_INT;
-	NM_ACK_INT (card, NM_RECORD_INT);
-
-	if (card->recording)
-	    nm256_read_block (card);
-    }
-
-    if (status & NM_MISC_INT_1) {
-	u8 cbyte;
-
-	handled = 1;
-	status &= ~NM_MISC_INT_1;
-	printk (KERN_ERR "NM256: Got misc interrupt #1\n");
-	NM_ACK_INT (card, NM_MISC_INT_1);
-	nm256_writePort16 (card, 2, NM_INT_REG, 0x8000);
-	cbyte = nm256_readPort8 (card, 2, 0x400);
-	nm256_writePort8 (card, 2, 0x400, cbyte | 2);
-    }
-
-    if (status & NM_MISC_INT_2) {
-	u8 cbyte;
-
-	handled = 1;
-	status &= ~NM_MISC_INT_2;
-	printk (KERN_ERR "NM256: Got misc interrupt #2\n");
-	NM_ACK_INT (card, NM_MISC_INT_2);
-	cbyte = nm256_readPort8 (card, 2, 0x400);
-	nm256_writePort8 (card, 2, 0x400, cbyte & ~2);
-    }
-
-    /* Unknown interrupt. */
-    if (status) {
-	handled = 1;
-	printk (KERN_ERR "NM256: Fire in the hole! Unknown status 0x%x\n",
-		status);
-	/* Pray. */
-	NM_ACK_INT (card, status);
-    }
-    return IRQ_RETVAL(handled);
-}
-
-/*
- * Handle a potential interrupt for the device referred to by DEV_ID.
- * This handler is for the 256ZX, and is very similar to the non-ZX
- * routine.
- */
-
-static irqreturn_t
-nm256_interrupt_zx (int irq, void *dev_id)
-{
-    struct nm256_info *card = (struct nm256_info *)dev_id;
-    u32 status;
-    static int badintrcount;
-    int handled = 0;
-
-    if ((card == NULL) || (card->magsig != NM_MAGIC_SIG)) {
-	printk (KERN_ERR "NM256: Bad card pointer\n");
-	return IRQ_NONE;
-    }
-
-    status = nm256_readPort32 (card, 2, NM_INT_REG);
-
-    /* Not ours. */
-    if (status == 0) {
-	if (badintrcount++ > 1000) {
-	    printk (KERN_ERR "NM256: Releasing interrupt, over 1000 invalid interrupts\n");
-	    /*
-	     * I'm not sure if the best thing is to stop the card from
-	     * playing or just release the interrupt (after all, we're in
-	     * a bad situation, so doing fancy stuff may not be such a good
-	     * idea).
-	     *
-	     * I worry about the card engine continuing to play noise
-	     * over and over, however--that could become a very
-	     * obnoxious problem.  And we know that when this usually
-	     * happens things are fairly safe, it just means the user's
-	     * inserted a PCMCIA card and someone's spamming us with 
-	     * IRQ 9s.
-	     */
-
-	    handled = 1;
-	    if (card->playing)
-		stopPlay (card);
-	    if (card->recording)
-		stopRecord (card);
-	    badintrcount = 0;
-	}
-	return IRQ_RETVAL(handled);
-    }
-
-    badintrcount = 0;
-
-    /* Rather boring; check for individual interrupts and process them. */
-
-    if (status & NM2_PLAYBACK_INT) {
-	handled = 1;
-	status &= ~NM2_PLAYBACK_INT;
-	NM2_ACK_INT (card, NM2_PLAYBACK_INT);
-
-	if (card->playing)
-	    nm256_get_new_block (card);
-    }
-
-    if (status & NM2_RECORD_INT) {
-	handled = 1;
-	status &= ~NM2_RECORD_INT;
-	NM2_ACK_INT (card, NM2_RECORD_INT);
-
-	if (card->recording)
-	    nm256_read_block (card);
-    }
-
-    if (status & NM2_MISC_INT_1) {
-	u8 cbyte;
-
-	handled = 1;
-	status &= ~NM2_MISC_INT_1;
-	printk (KERN_ERR "NM256: Got misc interrupt #1\n");
-	NM2_ACK_INT (card, NM2_MISC_INT_1);
-	cbyte = nm256_readPort8 (card, 2, 0x400);
-	nm256_writePort8 (card, 2, 0x400, cbyte | 2);
-    }
-
-    if (status & NM2_MISC_INT_2) {
-	u8 cbyte;
-
-	handled = 1;
-	status &= ~NM2_MISC_INT_2;
-	printk (KERN_ERR "NM256: Got misc interrupt #2\n");
-	NM2_ACK_INT (card, NM2_MISC_INT_2);
-	cbyte = nm256_readPort8 (card, 2, 0x400);
-	nm256_writePort8 (card, 2, 0x400, cbyte & ~2);
-    }
-
-    /* Unknown interrupt. */
-    if (status) {
-	handled = 1;
-	printk (KERN_ERR "NM256: Fire in the hole! Unknown status 0x%x\n",
-		status);
-	/* Pray. */
-	NM2_ACK_INT (card, status);
-    }
-    return IRQ_RETVAL(handled);
-}
-
-/* 
- * Request our interrupt.
- */
-static int
-nm256_grabInterrupt (struct nm256_info *card)
-{
-    if (card->has_irq++ == 0) {
-	if (request_irq (card->irq, card->introutine, IRQF_SHARED,
-			 "NM256_audio", card) < 0) {
-	    printk (KERN_ERR "NM256: can't obtain IRQ %d\n", card->irq);
-	    return -1;
-	}
-    }
-    return 0;
-}
-
-/* 
- * Release our interrupt. 
- */
-static int
-nm256_releaseInterrupt (struct nm256_info *card)
-{
-    if (card->has_irq <= 0) {
-	printk (KERN_ERR "nm256: too many calls to releaseInterrupt\n");
-	return -1;
-    }
-    card->has_irq--;
-    if (card->has_irq == 0) {
-	free_irq (card->irq, card);
-    }
-    return 0;
-}
-
-/*
- * Waits for the mixer to become ready to be written; returns a zero value
- * if it timed out.
- */
-
-static int
-nm256_isReady (struct ac97_hwint *dev)
-{
-    struct nm256_info *card = (struct nm256_info *)dev->driver_private;
-    int t2 = 10;
-    u32 testaddr;
-    u16 testb;
-    int done = 0;
-
-    if (card->magsig != NM_MAGIC_SIG) {
-	printk (KERN_ERR "NM256: Bad magic signature in isReady!\n");
-	return 0;
-    }
-
-    testaddr = card->mixer_status_offset;
-    testb = card->mixer_status_mask;
-
-    /* 
-     * Loop around waiting for the mixer to become ready. 
-     */
-    while (! done && t2-- > 0) {
-	if ((nm256_readPort16 (card, 2, testaddr) & testb) == 0)
-	    done = 1;
-	else
-	    udelay (100);
-    }
-    return done;
-}
-
-/*
- * Return the contents of the AC97 mixer register REG.  Returns a positive
- * value if successful, or a negative error code.
- */
-static int
-nm256_readAC97Reg (struct ac97_hwint *dev, u8 reg)
-{
-    struct nm256_info *card = (struct nm256_info *)dev->driver_private;
-
-    if (card->magsig != NM_MAGIC_SIG) {
-	printk (KERN_ERR "NM256: Bad magic signature in readAC97Reg!\n");
-	return -EINVAL;
-    }
-
-    if (reg < 128) {
-	int res;
-
-	nm256_isReady (dev);
-	res = nm256_readPort16 (card, 2, card->mixer + reg);
-	/* Magic delay.  Bleah yucky.  */
-        udelay (1000);
-	return res;
-    }
-    else
-	return -EINVAL;
-}
-
-/* 
- * Writes VALUE to AC97 mixer register REG.  Returns 0 if successful, or
- * a negative error code. 
- */
-static int
-nm256_writeAC97Reg (struct ac97_hwint *dev, u8 reg, u16 value)
-{
-    unsigned long flags;
-    int tries = 2;
-    int done = 0;
-    u32 base;
-
-    struct nm256_info *card = (struct nm256_info *)dev->driver_private;
-
-    if (card->magsig != NM_MAGIC_SIG) {
-	printk (KERN_ERR "NM256: Bad magic signature in writeAC97Reg!\n");
-	return -EINVAL;
-    }
-
-    base = card->mixer;
-
-    spin_lock_irqsave(&card->lock,flags);
-
-    nm256_isReady (dev);
-
-    /* Wait for the write to take, too. */
-    while ((tries-- > 0) && !done) {
-	nm256_writePort16 (card, 2, base + reg, value);
-	if (nm256_isReady (dev)) {
-	    done = 1;
-	    break;
-	}
-
-    }
-
-    spin_unlock_irqrestore(&card->lock,flags);
-    udelay (1000);
-
-    return ! done;
-}
-
-/* 
- * Initial register values to be written to the AC97 mixer.
- * While most of these are identical to the reset values, we do this
- * so that we have most of the register contents cached--this avoids
- * reading from the mixer directly (which seems to be problematic,
- * probably due to ignorance).
- */
-struct initialValues 
-{
-    unsigned short port;
-    unsigned short value;
-};
-
-static struct initialValues nm256_ac97_initial_values[] = 
-{
-    { AC97_MASTER_VOL_STEREO, 0x8000 },
-    { AC97_HEADPHONE_VOL,     0x8000 },
-    { AC97_MASTER_VOL_MONO,   0x0000 },
-    { AC97_PCBEEP_VOL,        0x0000 },
-    { AC97_PHONE_VOL,         0x0008 },
-    { AC97_MIC_VOL,           0x8000 },
-    { AC97_LINEIN_VOL,        0x8808 },
-    { AC97_CD_VOL,            0x8808 },
-    { AC97_VIDEO_VOL,         0x8808 },
-    { AC97_AUX_VOL,           0x8808 },
-    { AC97_PCMOUT_VOL,        0x0808 },
-    { AC97_RECORD_SELECT,     0x0000 },
-    { AC97_RECORD_GAIN,       0x0B0B },
-    { AC97_GENERAL_PURPOSE,   0x0000 },
-    { 0xffff, 0xffff }
-};
-
-/* Initialize the AC97 into a known state.  */
-static int
-nm256_resetAC97 (struct ac97_hwint *dev)
-{
-    struct nm256_info *card = (struct nm256_info *)dev->driver_private;
-    int x;
-
-    if (card->magsig != NM_MAGIC_SIG) {
-	printk (KERN_ERR "NM256: Bad magic signature in resetAC97!\n");
-	return -EINVAL;
-    }
-
-    /* Reset the mixer.  'Tis magic!  */
-    nm256_writePort8 (card, 2, 0x6c0, 1);
-//  nm256_writePort8 (card, 2, 0x6cc, 0x87);	/* This crashes Dell latitudes */
-    nm256_writePort8 (card, 2, 0x6cc, 0x80);
-    nm256_writePort8 (card, 2, 0x6cc, 0x0);
-
-    if (! card->mixer_values_init) {
-	for (x = 0; nm256_ac97_initial_values[x].port != 0xffff; x++) {
-	    ac97_put_register (dev,
-			       nm256_ac97_initial_values[x].port,
-			       nm256_ac97_initial_values[x].value);
-	    card->mixer_values_init = 1;
-	}
-    }
-
-    return 0;
-}
-
-/*
- * We don't do anything particularly special here; it just passes the
- * mixer ioctl to the AC97 driver.
- */
-static int
-nm256_default_mixer_ioctl (int dev, unsigned int cmd, void __user *arg)
-{
-    struct nm256_info *card = nm256_find_card_for_mixer (dev);
-    if (card != NULL)
-	return ac97_mixer_ioctl (&(card->mdev), cmd, arg);
-    else
-	return -ENODEV;
-}
-
-static struct mixer_operations nm256_mixer_operations = {
-	.owner	= THIS_MODULE,
-	.id	= "NeoMagic",
-	.name	= "NM256AC97Mixer",
-	.ioctl	= nm256_default_mixer_ioctl
-};
-
-/*
- * Default settings for the OSS mixer.  These are set last, after the
- * mixer is initialized.
- *
- * I "love" C sometimes.  Got braces?
- */
-static struct ac97_mixer_value_list mixer_defaults[] = {
-    { SOUND_MIXER_VOLUME,  { { 85, 85 } } },
-    { SOUND_MIXER_SPEAKER, { { 100 } } },
-    { SOUND_MIXER_PCM,     { { 65, 65 } } },
-    { SOUND_MIXER_CD,      { { 65, 65 } } },
-    { -1,                  {  { 0,  0 } } }
-};
-
-
-/* Installs the AC97 mixer into CARD.  */
-static int __devinit
-nm256_install_mixer (struct nm256_info *card)
-{
-    int mixer;
-
-    card->mdev.reset_device = nm256_resetAC97;
-    card->mdev.read_reg = nm256_readAC97Reg;
-    card->mdev.write_reg = nm256_writeAC97Reg;
-    card->mdev.driver_private = (void *)card;
-
-    if (ac97_init (&(card->mdev)))
-	return -1;
-
-    mixer = sound_alloc_mixerdev();
-    if (num_mixers >= MAX_MIXER_DEV) {
-	printk ("NM256 mixer: Unable to alloc mixerdev\n");
-	return -1;
-    }
-
-    mixer_devs[mixer] = &nm256_mixer_operations;
-    card->mixer_oss_dev = mixer;
-
-    /* Some reasonable default values.  */
-    ac97_set_values (&(card->mdev), mixer_defaults);
-
-    printk(KERN_INFO "Initialized AC97 mixer\n");
-    return 0;
-}
-
-/* 
- * See if the signature left by the NM256 BIOS is intact; if so, we use
- * the associated address as the end of our audio buffer in the video
- * RAM.
- */
-
-static void __devinit
-nm256_peek_for_sig (struct nm256_info *card)
-{
-    u32 port1offset 
-	= card->port[0].physaddr + card->port[0].end_offset - 0x0400;
-    /* The signature is located 1K below the end of video RAM.  */
-    char __iomem *temp = ioremap_nocache (port1offset, 16);
-    /* Default buffer end is 5120 bytes below the top of RAM.  */
-    u32 default_value = card->port[0].end_offset - 0x1400;
-    u32 sig;
-
-    /* Install the default value first, so we don't have to repeatedly
-       do it if there is a problem.  */
-    card->port[0].end_offset = default_value;
-
-    if (temp == NULL) {
-	printk (KERN_ERR "NM256: Unable to scan for card signature in video RAM\n");
-	return;
-    }
-    sig = readl (temp);
-    if ((sig & NM_SIG_MASK) == NM_SIGNATURE) {
-	u32 pointer = readl (temp + 4);
-
-	/*
-	 * If it's obviously invalid, don't use it (the port already has a
-	 * suitable default value set).
-	 */
-	if (pointer != 0xffffffff)
-	    card->port[0].end_offset = pointer;
-
-	printk (KERN_INFO "NM256: Found card signature in video RAM: 0x%x\n",
-		pointer);
-    }
-
-    iounmap (temp);
-}
-
-/* 
- * Install a driver for the PCI device referenced by PCIDEV.
- * VERSTR is a human-readable version string.
- */
-
-static int __devinit
-nm256_install(struct pci_dev *pcidev, enum nm256rev rev, char *verstr)
-{
-    struct nm256_info *card;
-    int x;
-
-    if (pci_enable_device(pcidev))
-	    return 0;
-
-    card = kmalloc (sizeof (struct nm256_info), GFP_KERNEL);
-    if (card == NULL) {
-	printk (KERN_ERR "NM256: out of memory!\n");
-	return 0;
-    }
-
-    card->magsig = NM_MAGIC_SIG;
-    card->playing  = 0;
-    card->recording = 0;
-    card->rev = rev;
-    spin_lock_init(&card->lock);
-
-    /* Init the memory port info.  */
-    for (x = 0; x < 2; x++) {
-	card->port[x].physaddr = pci_resource_start (pcidev, x);
-	card->port[x].ptr = NULL;
-	card->port[x].start_offset = 0;
-	card->port[x].end_offset = 0;
-    }
-
-    /* Port 2 is easy.  */
-    card->port[1].start_offset = 0;
-    card->port[1].end_offset = NM_PORT2_SIZE;
-
-    /* Yuck.  But we have to map in port 2 so we can check how much RAM the
-       card has.  */
-    if (nm256_remap_ports (card)) {
-	kfree (card);
-	return 0;
-    }
-
-    /* 
-     * The NM256 has two memory ports.  The first port is nothing
-     * more than a chunk of video RAM, which is used as the I/O ring
-     * buffer.  The second port has the actual juicy stuff (like the
-     * mixer and the playback engine control registers).
-     */
-
-    if (card->rev == REV_NM256AV) {
-	/* Ok, try to see if this is a non-AC97 version of the hardware. */
-	int pval = nm256_readPort16 (card, 2, NM_MIXER_PRESENCE);
-	if ((pval & NM_PRESENCE_MASK) != NM_PRESENCE_VALUE) {
-	    if (! force_load) {
-		printk (KERN_ERR "NM256: This doesn't look to me like the AC97-compatible version.\n");
-		printk (KERN_ERR "       You can force the driver to load by passing in the module\n");
-		printk (KERN_ERR "       parameter:\n");
-		printk (KERN_ERR "              force_load = 1\n");
-		printk (KERN_ERR "\n");
-		printk (KERN_ERR "       More likely, you should be using the appropriate SB-16 or\n");
-		printk (KERN_ERR "       CS4232 driver instead.  (If your BIOS has settings for\n");
-		printk (KERN_ERR "       IRQ and/or DMA for the sound card, this is *not* the correct\n");
-		printk (KERN_ERR "       driver to use.)\n");
-		nm256_release_ports (card);
-		kfree (card);
-		return 0;
-	    }
-	    else {
-		printk (KERN_INFO "NM256: Forcing driver load as per user request.\n");
-	    }
-	}
-	else {
-	 /*   printk (KERN_INFO "NM256: Congratulations. You're not running Eunice.\n")*/;
-	}
-	card->port[0].end_offset = 2560 * 1024;
-	card->introutine = nm256_interrupt;
-	card->mixer_status_offset = NM_MIXER_STATUS_OFFSET;
-	card->mixer_status_mask = NM_MIXER_READY_MASK;
-    } 
-    else {
-	/* Not sure if there is any relevant detect for the ZX or not.  */
-	if (nm256_readPort8 (card, 2, 0xa0b) != 0)
-	    card->port[0].end_offset = 6144 * 1024;
-	else
-	    card->port[0].end_offset = 4096 * 1024;
-
-	card->introutine = nm256_interrupt_zx;
-	card->mixer_status_offset = NM2_MIXER_STATUS_OFFSET;
-	card->mixer_status_mask = NM2_MIXER_READY_MASK;
-    }
-
-    if (buffertop >= 98304 && buffertop < card->port[0].end_offset)
-	card->port[0].end_offset = buffertop;
-    else
-	nm256_peek_for_sig (card);
-
-    card->port[0].start_offset = card->port[0].end_offset - 98304;
-
-    printk (KERN_INFO "NM256: Mapping port 1 from 0x%x - 0x%x\n",
-	    card->port[0].start_offset, card->port[0].end_offset);
-
-    if (nm256_remap_ports (card)) {
-	kfree (card);
-	return 0;
-    }
-
-    /* See if we can get the interrupt. */
-
-    card->irq = pcidev->irq;
-    card->has_irq = 0;
-
-    if (nm256_grabInterrupt (card) != 0) {
-	nm256_release_ports (card);
-	kfree (card);
-	return 0;
-    }
-
-    nm256_releaseInterrupt (card);
-
-    /*
-     *	Init the board.
-     */
-
-    card->playbackBufferSize = 16384;
-    card->recordBufferSize = 16384;
-
-    card->coeffBuf = card->port[0].end_offset - NM_MAX_COEFFICIENT;
-    card->abuf2 = card->coeffBuf - card->recordBufferSize;
-    card->abuf1 = card->abuf2 - card->playbackBufferSize;
-    card->allCoeffBuf = card->abuf2 - (NM_TOTAL_COEFF_COUNT * 4);
-
-    /* Fixed setting. */
-    card->mixer = NM_MIXER_OFFSET;
-    card->mixer_values_init = 0;
-
-    card->is_open_play = 0;
-    card->is_open_record = 0;
-
-    card->coeffsCurrent = 0;
-
-    card->opencnt[0] = 0; card->opencnt[1] = 0;
-
-    /* Reasonable default settings, but largely unnecessary. */
-    for (x = 0; x < 2; x++) {
-	card->sinfo[x].bits = 8;
-	card->sinfo[x].stereo = 0;
-	card->sinfo[x].samplerate = 8000;
-    }
-
-    nm256_initHw (card);
-
-    for (x = 0; x < 2; x++) {
-	if ((card->dev[x] =
-	     sound_install_audiodrv(AUDIO_DRIVER_VERSION,
-				    "NM256", &nm256_audio_driver,
-				    sizeof(struct audio_driver),
-				    DMA_NODMA, AFMT_U8 | AFMT_S16_LE,
-				    NULL, -1, -1)) >= 0) {
-	    /* 1K minimum buffer size. */
-	    audio_devs[card->dev[x]]->min_fragment = 10;
-	    /* Maximum of 8K buffer size. */
-	    audio_devs[card->dev[x]]->max_fragment = 13;
-	}
-	else {
-	    printk(KERN_ERR "NM256: Too many PCM devices available\n");
-	    nm256_release_ports (card);
-	    kfree (card);
-	    return 0;
-	}
-    }
-
-    pci_set_drvdata(pcidev,card);
-
-    /* Insert the card in the list.  */
-    card->next_card = nmcard_list;
-    nmcard_list = card;
-
-    printk(KERN_INFO "Initialized NeoMagic %s audio in PCI native mode\n",
-	   verstr);
-
-    /* 
-     * And our mixer.  (We should allow support for other mixers, maybe.)
-     */
-
-    nm256_install_mixer (card);
-
-    return 1;
-}
-
-
-static int __devinit
-nm256_probe(struct pci_dev *pcidev,const struct pci_device_id *pciid)
-{
-    if (pcidev->device == PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO)
-	return nm256_install(pcidev, REV_NM256AV, "256AV");
-    if (pcidev->device == PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO)
-	return nm256_install(pcidev, REV_NM256ZX, "256ZX");
-    if (pcidev->device == PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO)
-	return nm256_install(pcidev, REV_NM256ZX, "256XL+");
-    return -1; /* should not come here ... */
-}
-
-static void __devinit
-nm256_remove(struct pci_dev *pcidev) {
-    struct nm256_info *xcard = pci_get_drvdata(pcidev);
-    struct nm256_info *card,*next_card = NULL;
-
-    for (card = nmcard_list; card != NULL; card = next_card) {
-	next_card = card->next_card;
-	if (card == xcard) {
-	    stopPlay (card);
-	    stopRecord (card);
-	    if (card->has_irq)
-		free_irq (card->irq, card);
-	    nm256_release_ports (card);
-	    sound_unload_mixerdev (card->mixer_oss_dev);
-	    sound_unload_audiodev (card->dev[0]);
-	    sound_unload_audiodev (card->dev[1]);
-	    kfree (card);
-	    break;
-	}
-    }
-    if (nmcard_list == card)
-    	nmcard_list = next_card;
-}
-
-/*
- * Open the device
- *
- * DEV  - device
- * MODE - mode to open device (logical OR of OPEN_READ and OPEN_WRITE)
- *
- * Called when opening the DMAbuf               (dmabuf.c:259)
- */
-static int
-nm256_audio_open(int dev, int mode)
-{
-    struct nm256_info *card = nm256_find_card (dev);
-    int w;
-	
-    if (card == NULL)
-	return -ENODEV;
-
-    if (card->dev[0] == dev)
-	w = 0;
-    else if (card->dev[1] == dev)
-	w = 1;
-    else
-	return -ENODEV;
-
-    if (card->opencnt[w] > 0)
-	return -EBUSY;
-
-    /* No bits set? Huh? */
-    if (! ((mode & OPEN_READ) || (mode & OPEN_WRITE)))
-	return -EIO;
-
-    /*
-     * If it's open for both read and write, and the card's currently
-     * being read or written to, then do the opposite of what has
-     * already been done.  Otherwise, don't specify any mode until the
-     * user actually tries to do I/O.  (Some programs open the device
-     * for both read and write, but only actually do reading or writing.)
-     */
-
-    if ((mode & OPEN_WRITE) && (mode & OPEN_READ)) {
-	if (card->is_open_play)
-	    mode = OPEN_WRITE;
-	else if (card->is_open_record)
-	    mode = OPEN_READ;
-	else mode = 0;
-    }
-	
-    if (mode & OPEN_WRITE) {
-	if (card->is_open_play == 0) {
-	    card->dev_for_play = dev;
-	    card->is_open_play = 1;
-	}
-	else
-	    return -EBUSY;
-    }
-
-    if (mode & OPEN_READ) {
-	if (card->is_open_record == 0) {
-	    card->dev_for_record = dev;
-	    card->is_open_record = 1;
-	}
-	else
-	    return -EBUSY;
-    }
-
-    card->opencnt[w]++;
-    return 0;
-}
-
-/*
- * Close the device
- *
- * DEV  - device
- *
- * Called when closing the DMAbuf               (dmabuf.c:477)
- *      after halt_xfer
- */
-static void
-nm256_audio_close(int dev)
-{
-    struct nm256_info *card = nm256_find_card (dev);
-	
-    if (card != NULL) {
-	int w;
-
-	if (card->dev[0] == dev)
-	    w = 0;
-	else if (card->dev[1] == dev)
-	    w = 1;
-	else
-	    return;
-
-	card->opencnt[w]--;
-	if (card->opencnt[w] <= 0) {
-	    card->opencnt[w] = 0;
-
-	    if (card->dev_for_play == dev) {
-		stopPlay (card);
-		card->is_open_play = 0;
-		card->dev_for_play = -1;
-	    }
-
-	    if (card->dev_for_record == dev) {
-		stopRecord (card);
-		card->is_open_record = 0;
-		card->dev_for_record = -1;
-	    }
-	}
-    }
-}
-
-/* Standard ioctl handler. */
-static int
-nm256_audio_ioctl(int dev, unsigned int cmd, void __user *arg)
-{
-    int ret;
-    u32 oldinfo;
-    int w;
-
-    struct nm256_info *card = nm256_find_card (dev);
-
-    if (card == NULL)
-	return -ENODEV;
-
-    if (dev == card->dev[0])
-	w = 0;
-    else
-	w = 1;
-
-    /* 
-     * The code here is messy.  There are probably better ways to do
-     * it.  (It should be possible to handle it the same way the AC97 mixer 
-     * is done.)
-     */
-    switch (cmd)
-	{
-	case SOUND_PCM_WRITE_RATE:
-	    if (get_user(ret, (int __user *) arg))
-		return -EFAULT;
-
-	    if (ret != 0) {
-		oldinfo = card->sinfo[w].samplerate;
-		card->sinfo[w].samplerate = ret;
-		ret = nm256_setInfo(dev, card);
-		if (ret != 0)
-		    card->sinfo[w].samplerate = oldinfo;
-	    }
-	    if (ret == 0)
-		ret = card->sinfo[w].samplerate;
-	    break;
-
-	case SOUND_PCM_READ_RATE:
-	    ret = card->sinfo[w].samplerate;
-	    break;
-
-	case SNDCTL_DSP_STEREO:
-	    if (get_user(ret, (int __user *) arg))
-		return -EFAULT;
-
-	    card->sinfo[w].stereo = ret ? 1 : 0;
-	    ret = nm256_setInfo (dev, card);
-	    if (ret == 0)
-		ret = card->sinfo[w].stereo;
-
-	    break;
-
-	case SOUND_PCM_WRITE_CHANNELS:
-	    if (get_user(ret, (int __user *) arg))
-		return -EFAULT;
-
-	    if (ret < 1 || ret > 3)
-		ret = card->sinfo[w].stereo + 1;
-	    else {
-		card->sinfo[w].stereo = ret - 1;
-		ret = nm256_setInfo (dev, card);
-		if (ret == 0)
-		    ret = card->sinfo[w].stereo + 1;
-	    }
-	    break;
-
-	case SOUND_PCM_READ_CHANNELS:
-	    ret = card->sinfo[w].stereo + 1;
-	    break;
-
-	case SNDCTL_DSP_SETFMT:
-	    if (get_user(ret, (int __user *) arg))
-		return -EFAULT;
-
-	    if (ret != 0) {
-		oldinfo = card->sinfo[w].bits;
-		card->sinfo[w].bits = ret;
-		ret = nm256_setInfo (dev, card);
-		if (ret != 0)
-		    card->sinfo[w].bits = oldinfo;
-	    }
-	    if (ret == 0)
-		ret = card->sinfo[w].bits;
-	    break;
-
-	case SOUND_PCM_READ_BITS:
-	    ret = card->sinfo[w].bits;
-	    break;
-
-	default:
-	    return -EINVAL;
-	}
-    return put_user(ret, (int __user *) arg);
-}
-
-/*
- * Given the sound device DEV and an associated physical buffer PHYSBUF, 
- * return a pointer to the actual buffer in kernel space. 
- *
- * This routine should exist as part of the soundcore routines.
- */
-
-static char *
-nm256_getDMAbuffer (int dev, unsigned long physbuf)
-{
-    struct audio_operations *adev = audio_devs[dev];
-    struct dma_buffparms *dmap = adev->dmap_out;
-    char *dma_start =
-	(char *)(physbuf - (unsigned long)dmap->raw_buf_phys 
-		 + (unsigned long)dmap->raw_buf);
-
-    return dma_start;
-}
-
-
-/*
- * Output a block to sound device
- *
- * dev          - device number
- * buf          - physical address of buffer
- * total_count  - total byte count in buffer
- * intrflag     - set if this has been called from an interrupt 
- *				  (via DMAbuf_outputintr)
- * restart_dma  - set if engine needs to be re-initialised
- *
- * Called when:
- *  1. Starting output                                  (dmabuf.c:1327)
- *  2.                                                  (dmabuf.c:1504)
- *  3. A new buffer needs to be sent to the device      (dmabuf.c:1579)
- */
-static void
-nm256_audio_output_block(int dev, unsigned long physbuf,
-				       int total_count, int intrflag)
-{
-    struct nm256_info *card = nm256_find_card (dev);
-
-    if (card != NULL) {
-	char *dma_buf = nm256_getDMAbuffer (dev, physbuf);
-	card->is_open_play = 1;
-	card->dev_for_play = dev;
-	nm256_write_block (card, dma_buf, total_count);
-    }
-}
-
-/* Ditto, but do recording instead.  */
-static void
-nm256_audio_start_input(int dev, unsigned long physbuf, int count,
-			int intrflag)
-{
-    struct nm256_info *card = nm256_find_card (dev);
-
-    if (card != NULL) {
-	char *dma_buf = nm256_getDMAbuffer (dev, physbuf);
-	card->is_open_record = 1;
-	card->dev_for_record = dev;
-	nm256_startRecording (card, dma_buf, count);
-    }
-}
-
-/* 
- * Prepare for inputting samples to DEV. 
- * Each requested buffer will be BSIZE byes long, with a total of
- * BCOUNT buffers. 
- */
-
-static int
-nm256_audio_prepare_for_input(int dev, int bsize, int bcount)
-{
-    struct nm256_info *card = nm256_find_card (dev);
-
-    if (card == NULL) 
-	return -ENODEV;
-
-    if (card->is_open_record && card->dev_for_record != dev)
-	return -EBUSY;
-
-    audio_devs[dev]->dmap_in->flags |= DMA_NODMA;
-    return 0;
-}
-
-/*
- * Prepare for outputting samples to `dev'
- *
- * Each buffer that will be passed will be `bsize' bytes long,
- * with a total of `bcount' buffers.
- *
- * Called when:
- *  1. A trigger enables audio output                   (dmabuf.c:978)
- *  2. We get a write buffer without dma_mode setup     (dmabuf.c:1152)
- *  3. We restart a transfer                            (dmabuf.c:1324)
- */
-
-static int
-nm256_audio_prepare_for_output(int dev, int bsize, int bcount)
-{
-    struct nm256_info *card = nm256_find_card (dev);
-
-    if (card == NULL)
-	return -ENODEV;
-
-    if (card->is_open_play && card->dev_for_play != dev)
-	return -EBUSY;
-
-    audio_devs[dev]->dmap_out->flags |= DMA_NODMA;
-    return 0;
-}
-
-/* Stop the current operations associated with DEV.  */
-static void
-nm256_audio_reset(int dev)
-{
-    struct nm256_info *card = nm256_find_card (dev);
-
-    if (card != NULL) {
-	if (card->dev_for_play == dev)
-	    stopPlay (card);
-	if (card->dev_for_record == dev)
-	    stopRecord (card);
-    }
-}
-
-static int
-nm256_audio_local_qlen(int dev)
-{
-    return 0;
-}
-
-static struct audio_driver nm256_audio_driver =
-{
-	.owner			= THIS_MODULE,
-	.open			= nm256_audio_open,
-	.close			= nm256_audio_close,
-	.output_block		= nm256_audio_output_block,
-	.start_input		= nm256_audio_start_input,
-	.ioctl			= nm256_audio_ioctl,
-	.prepare_for_input	= nm256_audio_prepare_for_input,
-	.prepare_for_output	= nm256_audio_prepare_for_output,
-	.halt_io		= nm256_audio_reset,
-	.local_qlen		= nm256_audio_local_qlen,
-};
-
-static struct pci_device_id nm256_pci_tbl[] = {
-	{PCI_VENDOR_ID_NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO,
-	PCI_ANY_ID, PCI_ANY_ID, 0, 0},
-	{PCI_VENDOR_ID_NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO,
-	PCI_ANY_ID, PCI_ANY_ID, 0, 0},
-	{PCI_VENDOR_ID_NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO,
-	PCI_ANY_ID, PCI_ANY_ID, 0, 0},
-	{0,}
-};
-MODULE_DEVICE_TABLE(pci, nm256_pci_tbl);
-MODULE_LICENSE("GPL");
-
-
-static struct pci_driver nm256_pci_driver = {
-	.name		= "nm256_audio",
-	.id_table	= nm256_pci_tbl,
-	.probe		= nm256_probe,
-	.remove		= nm256_remove,
-};
-
-module_param(usecache, bool, 0);
-module_param(buffertop, int, 0);
-module_param(nm256_debug, bool, 0644);
-module_param(force_load, bool, 0);
-
-static int __init do_init_nm256(void)
-{
-    printk (KERN_INFO "NeoMagic 256AV/256ZX audio driver, version 1.1p\n");
-    return pci_register_driver(&nm256_pci_driver);
-}
-
-static void __exit cleanup_nm256 (void)
-{
-    pci_unregister_driver(&nm256_pci_driver);
-}
-
-module_init(do_init_nm256);
-module_exit(cleanup_nm256);
-
-/*
- * Local variables:
- *  c-basic-offset: 4
- * End:
- */