patch-2.1.106 linux/drivers/sound/msnd_classic.c

• Lines: 1307
• Date: Sat Jun 13 10:23:52 1998
• Orig file: v2.1.105/linux/drivers/sound/msnd_classic.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.105/linux/drivers/sound/msnd_classic.c linux/drivers/sound/msnd_classic.c
@@ -0,0 +1,1306 @@
+/*********************************************************************
+ *
+ * msnd_classic.c - Support for Turtle Beach Classic/Monterey/Tahiti
+ *
+ * Turtle Beach MultiSound Soundcard Driver for Linux
+ *
+ * Copyright (C) 1998 Andrew Veliath
+ *
+ * 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.
+ *
+ * $Id: msnd_classic.c,v 1.2 1998/06/09 20:37:39 andrewtv Exp $
+ *
+ ********************************************************************/
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/malloc.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include "sound_config.h"
+#include "sound_firmware.h"
+#define SLOWIO
+#include "msnd.h"
+#include "msnd_classic.h"
+
+#define LOGNAME				"msnd_classic"
+#define DEVNAME				dev.name
+#define MIXERMINOR			dev.mixer_minor
+#define DSPMINOR			dev.dsp_minor
+
+multisound_dev_t			dev;
+
+#ifndef HAVE_DSPCODEH
+static char				*dspini, *permini;
+static int				sizeof_dspini, sizeof_permini;
+#endif
+
+static void reset_play_queue(void)
+{
+	int n;
+	LPDAQD lpDAQ;
+
+	msnd_fifo_make_empty(&dev.DAPF);
+	dev.DAPQ->wHead = 0;
+	dev.DAPQ->wTail = PCTODSP_OFFSET(2 * DAPQ_STRUCT_SIZE);
+	dev.CurDAQD = (LPDAQD)(dev.base + 1 * DAPQ_DATA_BUFF);
+	outb(HPBLKSEL_0, dev.io + HP_BLKS);
+	memset_io(dev.base, 0, DAP_BUFF_SIZE * 3);
+
+	for (n = 0, lpDAQ = dev.CurDAQD; n < 3; ++n, ++lpDAQ) {
+               
+		writew(PCTODSP_BASED((DWORD)(DAP_BUFF_SIZE * n)), &lpDAQ->wStart);
+		writew(DAP_BUFF_SIZE, &lpDAQ->wSize);
+		writew(1, &lpDAQ->wFormat);
+		writew(dev.sample_size, &lpDAQ->wSampleSize);
+		writew(dev.channels, &lpDAQ->wChannels);
+		writew(dev.sample_rate, &lpDAQ->wSampleRate);
+		writew(HIMT_PLAY_DONE * 0x100 + n, &lpDAQ->wIntMsg);
+		writew(n + 1, &lpDAQ->wFlags);
+
+	}
+
+	dev.lastbank = -1;
+}
+
+static void reset_record_queue(void)
+{
+	int n;
+	LPDAQD lpDAQ;
+
+	msnd_fifo_make_empty(&dev.DARF);
+	dev.DARQ->wHead = 0;
+	dev.DARQ->wTail = PCTODSP_OFFSET(2 * DARQ_STRUCT_SIZE);
+	dev.CurDARQD = (LPDAQD)(dev.base + 1 * DARQ_DATA_BUFF);
+	outb(HPBLKSEL_1, dev.io + HP_BLKS);
+	memset_io(dev.base, 0, DAR_BUFF_SIZE * 3);
+	outb(HPBLKSEL_0, dev.io + HP_BLKS);
+
+	for (n = 0, lpDAQ = dev.CurDARQD; n < 3; ++n, ++lpDAQ) {
+
+		writew(PCTODSP_BASED((DWORD)(DAR_BUFF_SIZE * n)) + 0x4000, &lpDAQ->wStart);
+		writew(DAR_BUFF_SIZE, &lpDAQ->wSize);
+		writew(1, &lpDAQ->wFormat);
+		writew(dev.sample_size, &lpDAQ->wSampleSize);
+		writew(dev.channels, &lpDAQ->wChannels);
+		writew(dev.sample_rate, &lpDAQ->wSampleRate);
+		writew(HIMT_RECORD_DONE * 0x100 + n, &lpDAQ->wIntMsg);
+		writew(n + 1, &lpDAQ->wFlags);
+
+	}
+}
+
+static void reset_queues(void)
+{
+	dev.DSPQ->wHead = dev.DSPQ->wTail = 0;
+	reset_play_queue();
+	reset_record_queue();
+}
+
+static int dsp_ioctl(unsigned int cmd, unsigned long arg)
+{
+	int val, i, data;
+	LPDAQD lpDAQ, lpDARQ;
+
+	lpDAQ = (LPDAQD)(dev.base + DAPQ_DATA_BUFF);
+	lpDARQ = (LPDAQD)(dev.base + DARQ_DATA_BUFF);
+
+	switch (cmd) {
+	case SNDCTL_DSP_SUBDIVIDE:
+	case SNDCTL_DSP_SETFRAGMENT:
+	case SNDCTL_DSP_SETDUPLEX:
+		return 0;
+
+	case SNDCTL_DSP_GETIPTR:
+	case SNDCTL_DSP_GETOPTR:
+	case SNDCTL_DSP_MAPINBUF:
+	case SNDCTL_DSP_MAPOUTBUF:
+		return -EINVAL;
+
+	case SNDCTL_DSP_SYNC:
+	case SNDCTL_DSP_RESET:
+
+		reset_play_queue();
+		reset_record_queue();
+
+		return 0;
+		
+	case SNDCTL_DSP_GETBLKSIZE:
+
+		if (put_user(dev.fifosize / 4, (int *)arg))
+			return -EFAULT;
+
+		return 0;
+
+	case SNDCTL_DSP_NONBLOCK:
+
+		dev.mode |= O_NONBLOCK;
+
+		return 0;
+
+	case SNDCTL_DSP_GETCAPS:
+
+		val = DSP_CAP_DUPLEX | DSP_CAP_BATCH;
+		if (put_user(val, (int *)arg))
+			return -EFAULT;
+
+		return 0;
+
+	case SNDCTL_DSP_SAMPLESIZE:
+			
+		if (get_user(val, (int *)arg))
+			return -EFAULT;
+
+		switch (val) {
+		case 16:
+		case 8:
+			data = val;
+			break;
+		default:
+			data = DEFSAMPLESIZE;
+			break;
+		}
+
+		for (i = 0; i < 3; ++i, ++lpDAQ, ++lpDARQ) {
+
+			lpDAQ->wSampleSize = data;
+			lpDARQ->wSampleSize = data;
+		}
+		
+		dev.sample_size = data;
+		
+		if (put_user(data, (int *)arg))
+			return -EFAULT;
+
+		return 0;
+
+	case SNDCTL_DSP_SPEED:
+			
+		if (get_user(val, (int *)arg))
+			return -EFAULT;
+
+		if (val < 8000)
+			val = 8000;
+
+		if (val > 48000)
+			val = 48000;
+
+		data = val;
+
+		for (i = 0; i < 3; ++i, ++lpDAQ, ++lpDARQ) {
+
+			lpDAQ->wSampleRate = data;
+			lpDARQ->wSampleRate = data;
+		}
+		
+		dev.sample_rate = data;
+
+		if (put_user(data, (int *)arg))
+			return -EFAULT;
+
+		return 0;
+
+	case SNDCTL_DSP_CHANNELS:
+			
+		if (get_user(val, (int *)arg))
+			return -EFAULT;
+			
+		switch (val) {
+		case 1:
+		case 2:
+			data = val;
+			break;
+		default:
+			val = data = 2;
+			break;
+		}
+									
+		for (i = 0; i < 3; ++i, ++lpDAQ, ++lpDARQ) {
+
+			lpDAQ->wChannels = data;
+			lpDARQ->wChannels = data;
+		}
+
+		dev.channels = data;
+
+		if (put_user(val, (int *)arg))
+			return -EFAULT;
+
+		return 0;
+
+	case SNDCTL_DSP_STEREO:
+			
+		if (get_user(val, (int *)arg))
+			return -EFAULT;
+			
+		switch (val) {
+		case 0:
+			data = 1;
+			break;
+		default:
+			val = 1;
+		case 1:
+			data = 2;
+			break;
+		}
+									
+		for (i = 0; i < 3; ++i, ++lpDAQ, ++lpDARQ) {
+
+			lpDAQ->wChannels = data;
+			lpDARQ->wChannels = data;
+		}
+
+		dev.channels = data;
+
+		if (put_user(val, (int *)arg))
+			return -EFAULT;
+
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+static int mixer_get(int d)
+{
+	if (d > 31)
+		return -EINVAL;
+
+	switch (d) {
+	case SOUND_MIXER_VOLUME:
+	case SOUND_MIXER_SYNTH:
+	case SOUND_MIXER_PCM:
+	case SOUND_MIXER_LINE:
+	case SOUND_MIXER_MIC:
+	case SOUND_MIXER_IMIX:
+	case SOUND_MIXER_LINE1:
+		return (dev.left_levels[d] >> 8) * 100 / 0xff | 
+			(((dev.right_levels[d] >> 8) * 100 / 0xff) << 8);
+	default:
+		return 0;
+	}
+}
+
+#define update_vol(a,b,s)								\
+	writew(dev.left_levels[a] * readw(&dev.SMA->wCurrMastVolLeft) / 0xffff / s,	\
+	       &dev.SMA->b##Left);							\
+	writew(dev.right_levels[a] * readw(&dev.SMA->wCurrMastVolRight) / 0xffff / s,	\
+	       &dev.SMA->b##Right);
+
+static int mixer_set(int d, int value)
+{
+	int left = value & 0x000000ff;
+	int right = (value & 0x0000ff00) >> 8;
+	int bLeft, bRight;
+	int wLeft, wRight;
+
+	if (d > 31)
+		return -EINVAL;
+
+	bLeft = left * 0xff / 100;
+	wLeft = left * 0xffff / 100;
+
+	bRight = right * 0xff / 100;
+	wRight = right * 0xffff / 100;
+
+	dev.left_levels[d] = wLeft;
+	dev.right_levels[d] = wRight;
+
+	switch (d) {
+	case SOUND_MIXER_VOLUME:		/* master volume */
+		writew(wLeft / 2, &dev.SMA->wCurrMastVolLeft);
+		writew(wRight / 2, &dev.SMA->wCurrMastVolRight);
+		break;
+
+		/* pot controls */
+	case SOUND_MIXER_LINE:			/* aux pot control */
+		writeb(bLeft, &dev.SMA->bInPotPosLeft);
+		writeb(bRight, &dev.SMA->bInPotPosRight);
+		if (msnd_send_word(&dev, 0, 0, HDEXAR_IN_SET_POTS) == 0)
+			msnd_send_dsp_cmd(&dev, HDEX_AUX_REQ);
+		break;
+
+	case SOUND_MIXER_LINE1:			/* line pot control */
+		writeb(bLeft, &dev.SMA->bAuxPotPosLeft);
+		writeb(bRight, &dev.SMA->bAuxPotPosRight);
+		if (msnd_send_word(&dev, 0, 0, HDEXAR_AUX_SET_POTS) == 0)
+			msnd_send_dsp_cmd(&dev, HDEX_AUX_REQ);
+		break;
+
+		/* digital controls */
+	case SOUND_MIXER_SYNTH:			/* synth vol (dsp mix) */
+	case SOUND_MIXER_PCM:			/* pcm vol (dsp mix) */
+	case SOUND_MIXER_IMIX:			/* input monitor (dsp mix) */
+		break;
+
+	default:
+		return 0;
+	}
+
+	/* update digital controls for master volume */
+	update_vol(SOUND_MIXER_PCM, wCurrPlayVol, 1);
+	update_vol(SOUND_MIXER_IMIX, wCurrInVol, 1);
+	
+	return mixer_get(d);
+}
+
+static unsigned long set_recsrc(unsigned long recsrc)
+{
+#ifdef HAVE_NORECSRC
+	if (recsrc == 0)
+		dev.recsrc = 0;
+	else
+#endif
+		dev.recsrc ^= recsrc;
+
+	return dev.recsrc;
+}
+
+static int mixer_ioctl(unsigned int cmd, unsigned long arg)
+{
+	int val = 0;
+
+	if (((cmd >> 8) & 0xff) == 'M') {
+		
+		if (_SIOC_DIR(cmd) & _SIOC_WRITE) {
+
+			switch (cmd & 0xff) {
+			case SOUND_MIXER_RECSRC:
+				if (get_user(val, (int *)arg))
+					return -EFAULT;
+				val = set_recsrc(val);
+				break;
+				
+			default:
+				if (get_user(val, (int *)arg))
+					return -EFAULT;
+				val = mixer_set(cmd & 0xff, val);
+				break;
+			}
+
+			return put_user(val, (int *)arg);
+		}
+		else {
+			switch (cmd & 0xff) {
+			case SOUND_MIXER_RECSRC:
+				val = dev.recsrc;
+				break;
+				
+			case SOUND_MIXER_DEVMASK:
+			case SOUND_MIXER_STEREODEVS:
+				val =   SOUND_MASK_VOLUME |
+					SOUND_MASK_PCM |
+					SOUND_MASK_LINE |
+					SOUND_MASK_IMIX |
+					SOUND_MASK_LINE1;
+				break;
+				  
+			case SOUND_MIXER_RECMASK:
+				val = 0;
+				break;
+				  
+			case SOUND_MIXER_CAPS:
+				val =   SOUND_CAP_EXCL_INPUT;
+				break;
+				
+			default:
+				if ((val = mixer_get(cmd & 0xff)) < 0)
+					return -EINVAL;
+				break;
+			}
+		}
+
+		return put_user(val, (int *)arg); 
+	}
+
+	return -EINVAL;
+}
+
+static int dev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+	int minor = MINOR(inode->i_rdev);
+
+	if (minor == DSPMINOR)
+		return dsp_ioctl(cmd, arg);
+	else if (minor == MIXERMINOR)
+		return mixer_ioctl(cmd, arg);
+
+	return -EINVAL;
+}
+
+static void dsp_halt(void)
+{
+	mdelay(1);
+	if (test_and_clear_bit(F_READING, &dev.flags)) {
+
+		msnd_send_dsp_cmd(&dev, HDEX_RECORD_STOP);
+		msnd_disable_irq(&dev);
+
+	}
+	mdelay(1);
+	if (test_and_clear_bit(F_WRITING, &dev.flags)) {
+
+		msnd_send_dsp_cmd(&dev, HDEX_PLAY_STOP);
+		msnd_disable_irq(&dev);
+
+	}
+	mdelay(1);
+	reset_queues();
+}
+
+static int dsp_open(struct file *file)
+{
+	dev.mode = file->f_mode;
+	set_bit(F_AUDIO_INUSE, &dev.flags);
+	reset_queues();
+	return 0;
+}
+
+static int dsp_close(void)
+{
+	dsp_halt();
+	clear_bit(F_AUDIO_INUSE, &dev.flags);
+	return 0;
+}
+
+static int dev_open(struct inode *inode, struct file *file)
+{
+	int minor = MINOR(inode->i_rdev);
+	int err = 0;
+
+	if (minor == DSPMINOR) {
+
+		if (test_bit(F_AUDIO_INUSE, &dev.flags))
+			return -EBUSY;
+
+		err = dsp_open(file);
+	}
+	else if (minor == MIXERMINOR) {
+		/* nothing */
+	} else
+		err = -EINVAL;
+	
+	if (err >= 0)
+		MOD_INC_USE_COUNT;
+
+	return err;
+}
+
+static int dev_close(struct inode *inode, struct file *file)
+{
+	int minor = MINOR(inode->i_rdev);
+	int err = 0;
+
+	if (minor == DSPMINOR) {
+		err = dsp_close();
+	}
+	else if (minor == MIXERMINOR) {
+		/* nothing */
+	} else
+		err = -EINVAL;
+
+	if (err >= 0)
+		MOD_DEC_USE_COUNT;
+	
+	return err;
+}
+
+static int DAPF_to_bank(int bank)
+{
+	return msnd_fifo_read(&dev.DAPF, dev.base + bank * DAP_BUFF_SIZE, DAP_BUFF_SIZE, 0);
+}
+
+static int bank_to_DARF(int bank)
+{
+	return msnd_fifo_write(&dev.DARF, dev.base + bank * DAR_BUFF_SIZE, DAR_BUFF_SIZE, 0);
+}
+
+static int dsp_read(char *buf, size_t len)
+{
+	int err = 0;
+	int count = len;
+
+	while (count > 0) {
+		
+		int n;
+
+		if ((n = msnd_fifo_read(&dev.DARF, buf, count, 1)) < 0) {
+
+			printk(KERN_WARNING LOGNAME ": FIFO read error\n");
+			return n;
+		}
+
+		buf += n;
+		count -= n;
+		
+		if (!test_and_set_bit(F_READING, &dev.flags) && (dev.mode & FMODE_READ)) {
+
+			reset_record_queue();
+			msnd_enable_irq(&dev);
+			msnd_send_dsp_cmd(&dev, HDEX_RECORD_START);
+
+		}
+
+		if (dev.mode & O_NONBLOCK)
+			return count == len ? -EAGAIN : len - count;
+
+		if (count > 0) {
+
+			set_bit(F_READBLOCK, &dev.flags);
+			interruptible_sleep_on(&dev.readblock);
+			clear_bit(F_READBLOCK, &dev.flags);
+
+			if (signal_pending(current))
+				err = -EINTR;
+
+		}
+
+		if (err != 0)
+			return err;
+	}
+
+	return len - count;
+}
+
+static int dsp_write(const char *buf, size_t len)
+{
+	int err = 0;
+	int count = len;
+
+	while (count > 0) {
+
+		int n;
+
+		if ((n = msnd_fifo_write(&dev.DAPF, buf, count, 1)) < 0) {
+
+			printk(KERN_WARNING LOGNAME ": FIFO write error\n");
+			return n;
+		}
+
+		buf += n;
+		count -= n;
+
+		if (!test_and_set_bit(F_WRITING, &dev.flags) && (dev.mode & FMODE_WRITE)) {
+			
+			reset_play_queue();
+			msnd_enable_irq(&dev);
+			msnd_send_dsp_cmd(&dev, HDEX_PLAY_START);
+
+		}
+
+		if (dev.mode & O_NONBLOCK)
+			return count == len ? -EAGAIN : len - count;
+
+		if (count > 0) {
+			
+			set_bit(F_WRITEBLOCK, &dev.flags);
+			interruptible_sleep_on(&dev.writeblock);
+			clear_bit(F_WRITEBLOCK, &dev.flags);
+
+			if (signal_pending(current))
+				err = -EINTR;
+
+		}
+
+		if (err != 0)
+			return err;
+	}
+	
+	return len - count;
+}
+
+static ssize_t dev_read(struct file *file, char *buf, size_t count, loff_t *off)
+{
+	int minor = MINOR(file->f_dentry->d_inode->i_rdev);
+
+	if (minor == DSPMINOR) {
+
+		return dsp_read(buf, count);
+
+	} else
+		return -EINVAL;
+}
+
+static ssize_t dev_write(struct file *file, const char *buf, size_t count, loff_t *off)
+{
+	int minor = MINOR(file->f_dentry->d_inode->i_rdev);
+
+	if (minor == DSPMINOR) {
+
+		return dsp_write(buf, count);
+
+	} else
+		return -EINVAL;
+}
+
+static void eval_dsp_msg(WORD wMessage)
+{
+	switch (HIBYTE(wMessage)) {
+	case HIMT_PLAY_DONE:
+		
+		if (dev.lastbank == LOBYTE(wMessage))
+			break;
+		
+		dev.lastbank = LOBYTE(wMessage);
+
+		dev.CurDAQD->wSize = DAP_BUFF_SIZE;
+
+		if ((dev.DAPQ->wTail += PCTODSP_OFFSET(DAPQ_STRUCT_SIZE)) > dev.DAPQ->wSize)
+			dev.DAPQ->wTail = 0;
+
+		if (++dev.CurDAQD > (LPDAQD)(dev.base + DAPQ_DATA_BUFF + 2 * DAPQ_STRUCT_SIZE))
+			dev.CurDAQD = (LPDAQD)(dev.base + DAPQ_DATA_BUFF);
+
+		if (dev.lastbank < 3) {
+
+			if (DAPF_to_bank(dev.lastbank) > 0) {
+
+				mdelay(1);
+				msnd_send_dsp_cmd(&dev, HDEX_PLAY_START);
+
+			} 
+			else if (!test_bit(F_WRITEBLOCK, &dev.flags)) {
+
+				memset_io(dev.base, 0, DAP_BUFF_SIZE * 3);
+				clear_bit(F_WRITING, &dev.flags);
+				msnd_disable_irq(&dev);
+
+			}
+		}
+
+		if (test_bit(F_WRITEBLOCK, &dev.flags))
+			wake_up_interruptible(&dev.writeblock);
+		
+		break;
+
+	case HIMT_RECORD_DONE: {
+
+		WORD wTemp;
+		
+		wTemp = dev.DARQ->wTail + (DARQ_STRUCT_SIZE / 2);
+
+		if (wTemp > dev.DARQ->wSize)
+			wTemp = 0;
+
+		while (wTemp == dev.DARQ->wHead);
+
+		dev.DARQ->wTail = wTemp;
+
+		outb(HPBLKSEL_1, dev.io + HP_BLKS);
+		if (bank_to_DARF(LOBYTE(wMessage)) == 0 &&
+		    !test_bit(F_READBLOCK, &dev.flags)) {
+
+			memset_io(dev.base, 0, DAR_BUFF_SIZE * 3);
+			clear_bit(F_READING, &dev.flags);
+			msnd_disable_irq(&dev);
+
+		}
+		outb(HPBLKSEL_0, dev.io + HP_BLKS);
+
+		if (test_bit(F_READBLOCK, &dev.flags))
+			wake_up_interruptible(&dev.readblock);
+
+		} break;
+
+	case HIMT_DSP:
+		switch (LOBYTE(wMessage)) {
+		case HIDSP_INT_PLAY_UNDER:
+			printk(KERN_INFO LOGNAME ": Write underflow\n");
+			reset_play_queue();
+			break;
+
+		case HIDSP_INT_RECORD_OVER:
+			printk(KERN_INFO LOGNAME ": Read overflow\n");
+			reset_record_queue();
+			break;
+
+		default:
+			printk(KERN_INFO LOGNAME ": DSP message %u\n", LOBYTE(wMessage));
+			break;
+		}
+		break;
+
+        case HIMT_MIDI_IN_UCHAR:
+		if (dev.midi_in_interrupt)
+			(*dev.midi_in_interrupt)(&dev);
+		break;
+
+	default:
+		break;
+	}
+}
+
+static void intr(int irq, void *dev_id, struct pt_regs *regs)
+{
+	if (test_bit(F_INTERRUPT, &dev.flags) || 
+	    ((multisound_dev_t *)dev_id != &dev))
+		return;
+
+	set_bit(F_INTERRUPT, &dev.flags);
+	
+	if (test_bit(F_BANKONE, &dev.flags))
+		outb(HPBLKSEL_0, dev.io + HP_BLKS);
+
+	inb(dev.io + HP_RXL);
+ 
+	while (dev.DSPQ->wTail != dev.DSPQ->wHead) {
+
+		eval_dsp_msg(*(dev.pwDSPQData + dev.DSPQ->wHead));
+
+		if (++dev.DSPQ->wHead > dev.DSPQ->wSize)
+			dev.DSPQ->wHead = 0;
+	}
+
+	if (test_bit(F_BANKONE, &dev.flags))
+		outb(HPBLKSEL_1, dev.io + HP_BLKS);
+
+	clear_bit(F_INTERRUPT, &dev.flags);
+}
+
+static struct file_operations dev_fileops = {
+	NULL,
+	dev_read,
+	dev_write,
+	NULL,
+	NULL,
+	dev_ioctl,
+	NULL,
+	dev_open,
+	dev_close,
+};
+
+__initfunc(static int reset_dsp(void))
+{
+	int timeout = 20000;
+		
+	outb(HPDSPRESET_ON, dev.io + HP_DSPR);
+	
+	mdelay(1);
+
+	dev.info = inb(dev.io + HP_INFO);
+
+	outb(HPDSPRESET_OFF, dev.io + HP_DSPR);
+
+	mdelay(1);
+
+	while (timeout-- > 0) {
+
+		if (inb(dev.io + HP_CVR) == HP_CVR_DEF)
+			return 0;
+		
+		mdelay(1);
+	}
+
+	printk(KERN_ERR LOGNAME ": Cannot reset DSP\n");
+
+	return -EIO;
+}
+
+__initfunc(static int probe_multisound(void))
+{
+	if (check_region(dev.io, dev.numio)) {
+		
+		printk(KERN_ERR LOGNAME ": I/O port conflict\n");
+		return -ENODEV;
+	}
+
+	request_region(dev.io, dev.numio, "probing");
+
+	if (reset_dsp() < 0) {
+		
+		release_region(dev.io, dev.numio);
+		return -ENODEV;
+	}
+
+	printk(KERN_INFO LOGNAME ": DSP reset successful\n");
+
+	dev.name = "Classic/Tahiti/Monterey";
+
+	printk(KERN_INFO LOGNAME ": Turtle Beach %s, "
+	       "I/O 0x%x-0x%x, IRQ %d, memory mapped to 0x%p-0x%p\n",
+	       dev.name,
+	       dev.io, dev.io + dev.numio - 1,
+	       dev.irq,
+	       dev.base, dev.base + 0x7fff);
+
+	release_region(dev.io, dev.numio);
+	
+	return 0;
+}
+
+__initfunc(static int init_sma(void))
+{
+	int n;
+	LPDAQD lpDAQ;
+
+	outb(dev.memid, dev.io + HP_MEMM);
+
+	outb(HPBLKSEL_0, dev.io + HP_BLKS);
+	memset_io(dev.base, 0, 0x8000);
+	
+	outb(HPBLKSEL_1, dev.io + HP_BLKS);
+	memset_io(dev.base, 0, 0x8000);
+	
+	outb(HPBLKSEL_0, dev.io + HP_BLKS);
+
+	dev.DAPQ = (struct JobQueueStruct *)(dev.base + DAPQ_OFFSET);
+	dev.DARQ = (struct JobQueueStruct *)(dev.base + DARQ_OFFSET);
+	dev.MODQ = (struct JobQueueStruct *)(dev.base + MODQ_OFFSET);
+	dev.MIDQ = (struct JobQueueStruct *)(dev.base + MIDQ_OFFSET);
+	dev.DSPQ = (struct JobQueueStruct *)(dev.base + DSPQ_OFFSET);
+
+	dev.SMA = (struct SMA0_CommonData *)(dev.base + SMA_STRUCT_START);
+
+	dev.CurDAQD = (LPDAQD)(dev.base + DAPQ_DATA_BUFF);
+	dev.CurDARQD = (LPDAQD)(dev.base + DARQ_DATA_BUFF);
+
+	dev.sample_size = DEFSAMPLESIZE;
+	dev.sample_rate = DEFSAMPLERATE;
+	dev.channels = DEFCHANNELS;
+
+	for (n = 0, lpDAQ = dev.CurDAQD; n < 3; ++n, ++lpDAQ) {
+		
+		writew(PCTODSP_BASED((DWORD)(DAP_BUFF_SIZE * n)), &lpDAQ->wStart);
+		writew(DAP_BUFF_SIZE, &lpDAQ->wSize);
+		writew(1, &lpDAQ->wFormat);
+		writew(dev.sample_size, &lpDAQ->wSampleSize);
+		writew(dev.channels, &lpDAQ->wChannels);
+		writew(dev.sample_rate, &lpDAQ->wSampleRate);
+		writew(HIMT_PLAY_DONE * 0x100 + n, &lpDAQ->wIntMsg);
+		writew(n + 1, &lpDAQ->wFlags);
+	}
+
+	for (n = 0, lpDAQ = dev.CurDARQD; n < 3; ++n, ++lpDAQ) {
+
+		writew(PCTODSP_BASED((DWORD)(DAR_BUFF_SIZE * n)) + 0x4000, &lpDAQ->wStart);
+		writew(DAR_BUFF_SIZE, &lpDAQ->wSize);
+		writew(1, &lpDAQ->wFormat);
+		writew(dev.sample_size, &lpDAQ->wSampleSize);
+		writew(dev.channels, &lpDAQ->wChannels);
+		writew(dev.sample_rate, &lpDAQ->wSampleRate);
+		writew(HIMT_RECORD_DONE * 0x100 + n, &lpDAQ->wIntMsg);
+		writew(n + 1, &lpDAQ->wFlags);
+
+	}	
+
+	dev.pwDSPQData = (WORD *)(dev.base + DSPQ_DATA_BUFF);
+	dev.pwMODQData = (WORD *)(dev.base + MODQ_DATA_BUFF);
+	dev.pwMIDQData = (WORD *)(dev.base + MIDQ_DATA_BUFF);
+
+	writew(PCTODSP_BASED(MIDQ_DATA_BUFF), &dev.MIDQ->wStart);
+	writew(PCTODSP_OFFSET(MIDQ_BUFF_SIZE) - 1, &dev.MIDQ->wSize);
+	writew(0, &dev.MIDQ->wHead);
+	writew(0, &dev.MIDQ->wTail);
+
+	writew(PCTODSP_BASED(MODQ_DATA_BUFF), &dev.MODQ->wStart);
+	writew(PCTODSP_OFFSET(MODQ_BUFF_SIZE) - 1, &dev.MODQ->wSize);
+	writew(0, &dev.MODQ->wHead);
+	writew(0, &dev.MODQ->wTail);
+
+	writew(PCTODSP_BASED(DAPQ_DATA_BUFF), &dev.DAPQ->wStart);
+	writew(PCTODSP_OFFSET(DAPQ_BUFF_SIZE) - 1, &dev.DAPQ->wSize);
+	writew(0, &dev.DAPQ->wHead);
+	writew(0, &dev.DAPQ->wTail);
+
+	writew(PCTODSP_BASED(DARQ_DATA_BUFF), &dev.DARQ->wStart);
+	writew(PCTODSP_OFFSET(DARQ_BUFF_SIZE) - 1, &dev.DARQ->wSize);
+	writew(0, &dev.DARQ->wHead);
+	writew(0, &dev.DARQ->wTail);
+
+	writew(PCTODSP_BASED(DSPQ_DATA_BUFF), &dev.DSPQ->wStart);
+	writew(PCTODSP_OFFSET(DSPQ_BUFF_SIZE) - 1, &dev.DSPQ->wSize);
+	writew(0, &dev.DSPQ->wHead);
+	writew(0, &dev.DSPQ->wTail);
+
+	writew(0, &dev.SMA->wCurrPlayBytes);
+	writew(0, &dev.SMA->wCurrRecordBytes);
+
+	writew(0, &dev.SMA->wCurrPlayVolLeft);
+	writew(0, &dev.SMA->wCurrPlayVolRight);
+
+	writew(0, &dev.SMA->wCurrInVolLeft);
+	writew(0, &dev.SMA->wCurrInVolRight);
+
+	writew(0, &dev.SMA->wCurrMastVolLeft);
+	writew(0, &dev.SMA->wCurrMastVolRight);
+
+	writew(0x0000, &dev.SMA->wCurrDSPStatusFlags);
+	writew(0x0000, &dev.SMA->wCurrHostStatusFlags);
+
+	writew(0x303, &dev.SMA->wCurrInputTagBits);
+	writew(0, &dev.SMA->wCurrLeftPeak);
+	writew(0, &dev.SMA->wCurrRightPeak);
+
+	writeb(0, &dev.SMA->bInPotPosRight);
+	writeb(0, &dev.SMA->bInPotPosLeft);
+
+	writeb(0, &dev.SMA->bAuxPotPosRight);
+	writeb(0, &dev.SMA->bAuxPotPosLeft);
+
+	writew(dev.sample_rate, &dev.SMA->wCalFreqAtoD);
+
+	return 0;
+}
+
+__initfunc(static int calibrate_adc(WORD srate))
+{
+	if (!dev.calibrate_signal) {
+
+		printk(KERN_INFO LOGNAME ": ADC calibration to board ground ");
+		writew(readw(&dev.SMA->wCurrHostStatusFlags)
+		       | 0x0001, &dev.SMA->wCurrHostStatusFlags);
+	}
+	else {
+
+		printk(KERN_INFO LOGNAME ": ADC calibration to signal ground ");
+		writew(readw(&dev.SMA->wCurrHostStatusFlags)
+		       & ~0x0001, &dev.SMA->wCurrHostStatusFlags);
+	}
+	
+	writew(srate, &dev.SMA->wCalFreqAtoD);
+
+	if (msnd_send_word(&dev, 0, 0, HDEXAR_CAL_A_TO_D) == 0 &&
+	    msnd_send_dsp_cmd(&dev, HDEX_AUX_REQ) == 0) {
+
+		current->state = TASK_INTERRUPTIBLE;
+		current->timeout = jiffies + HZ;
+		schedule();
+		current->timeout = 0;
+		printk("successful\n");
+		return 0;
+	}
+
+	printk("failed\n");
+
+	return -EIO;
+}
+
+__initfunc(static int upload_dsp_code(void))
+{
+	outb(HPBLKSEL_0, dev.io + HP_BLKS);
+
+#ifdef HAVE_DSPCODEH
+	printk(KERN_INFO LOGNAME ": Using resident Turtle Beach DSP code\n");
+#else	
+	printk(KERN_INFO LOGNAME ": Loading Turtle Beach DSP code\n");
+	INITCODESIZE = mod_firmware_load(INITCODEFILE, &INITCODE);
+	if (!INITCODE) {
+		printk(KERN_ERR LOGNAME ": Error loading " INITCODEFILE);
+		return -EBUSY;
+	}
+
+	PERMCODESIZE = mod_firmware_load(PERMCODEFILE, &PERMCODE);
+	if (!PERMCODE) {
+		printk(KERN_ERR LOGNAME ": Error loading " PERMCODEFILE);
+		vfree(INITCODE);
+		return -EBUSY;
+	}
+#endif
+	memcpy_toio(dev.base, PERMCODE, PERMCODESIZE);
+
+	if (msnd_upload_host(&dev, INITCODE, INITCODESIZE) < 0) {
+
+		printk(KERN_WARNING LOGNAME ": Error uploading to DSP\n");
+		return -ENODEV;
+	}
+
+#ifndef HAVE_DSPCODEH
+	vfree(INITCODE);
+	vfree(PERMCODE);
+#endif
+
+	return 0;
+}
+
+__initfunc(static void reset_proteus(void))
+{
+	outb(HPPRORESET_ON, dev.io + HP_PROR);
+	mdelay(TIME_PRO_RESET);
+	outb(HPPRORESET_OFF, dev.io + HP_PROR);
+	mdelay(TIME_PRO_RESET_DONE);
+}
+
+__initfunc(static int initialize(void))
+{
+	int err, timeout;
+
+	outb(HPWAITSTATE_0, dev.io + HP_WAIT);
+	outb(HPBITMODE_16, dev.io + HP_BITM);
+
+	reset_proteus();
+
+	if ((err = init_sma()) < 0) {
+
+		printk(KERN_WARNING LOGNAME ": Cannot initialize SMA\n");
+		return err;
+	}
+
+	if ((err = reset_dsp()) < 0)
+		return err;
+	
+	if ((err = upload_dsp_code()) < 0) {
+
+		printk(KERN_WARNING LOGNAME ": Cannot upload DSP code\n");
+		return err;
+
+	} else
+		printk(KERN_INFO LOGNAME ": DSP upload successful\n");
+
+	timeout = 2000;
+
+	while (readw(dev.base)) {
+		
+		mdelay(1);
+		if (--timeout < 0)
+			return -EIO;
+	}
+
+	return 0;
+}
+
+__initfunc(static int attach_multisound(void))
+{
+	int err;
+
+	printk(KERN_DEBUG LOGNAME ": Intializing DSP\n");
+
+	if ((err = request_irq(dev.irq, intr, SA_SHIRQ, DEVNAME, &dev)) < 0) {
+		
+		printk(KERN_ERR LOGNAME ": Couldn't grab IRQ %d\n", dev.irq);
+		return err;
+	
+	}
+
+	request_region(dev.io, dev.numio, DEVNAME);
+
+        if ((err = initialize()) < 0) {
+
+		printk(KERN_WARNING LOGNAME ": Initialization failure\n");
+		release_region(dev.io, dev.numio);
+		free_irq(dev.irq, &dev);
+		return err;
+
+	}
+
+	if ((err = msnd_register(&dev)) < 0) {
+
+		printk(KERN_ERR LOGNAME ": Unable to register MultiSound\n");
+		release_region(dev.io, dev.numio);
+		free_irq(dev.irq, &dev);
+		return err;
+	}
+
+	if ((DSPMINOR = register_sound_dsp(&dev_fileops)) < 0) {
+
+		printk(KERN_ERR LOGNAME ": Unable to register DSP operations\n");
+		msnd_unregister(&dev);
+		release_region(dev.io, dev.numio);
+		free_irq(dev.irq, &dev);
+		return DSPMINOR;
+	}
+
+	if ((MIXERMINOR = register_sound_mixer(&dev_fileops)) < 0) {
+
+		printk(KERN_ERR LOGNAME ": Unable to register mixer operations\n");
+		unregister_sound_mixer(MIXERMINOR);
+		msnd_unregister(&dev);
+		release_region(dev.io, dev.numio);
+		free_irq(dev.irq, &dev);
+		return MIXERMINOR;
+	}
+	printk(KERN_INFO LOGNAME ": Using DSP minor %d, mixer minor %d\n", MIXERMINOR, DSPMINOR);
+
+	calibrate_adc(dev.sample_rate);
+	set_recsrc(0);
+	
+	return 0;
+}
+
+static void unload_multisound(void)
+{
+	release_region(dev.io, dev.numio);
+	free_irq(dev.irq, &dev);
+	unregister_sound_mixer(MIXERMINOR);
+	unregister_sound_dsp(DSPMINOR);
+	msnd_unregister(&dev);
+}
+
+static void mod_inc_ref(void)
+{
+	MOD_INC_USE_COUNT;
+}
+
+static void mod_dec_ref(void)
+{
+	MOD_DEC_USE_COUNT;
+}
+
+#ifdef MODULE
+MODULE_AUTHOR				("Andrew Veliath <andrewtv@usa.net>");
+MODULE_DESCRIPTION			("Turtle Beach " LONGNAME " Linux Driver");
+MODULE_PARM				(io, "i");
+MODULE_PARM				(irq, "i");
+MODULE_PARM				(mem, "i");
+MODULE_PARM				(major, "i");
+MODULE_PARM				(fifosize, "i");
+MODULE_PARM				(calibrate_signal, "i");
+
+static int io __initdata =		-1;
+static int irq __initdata =		-1;
+static int mem __initdata =		-1;
+static int fifosize __initdata =	DEFFIFOSIZE;
+static int
+calibrate_signal __initdata =		0;
+
+int init_module(void)
+{
+	int err;
+
+	printk(KERN_INFO LOGNAME ": Turtle Beach " LONGNAME " Linux Driver Version "
+	       VERSION ", Copyright (C) 1998 Andrew Veliath\n");
+	
+	if (io == -1 || irq == -1 || mem == -1) {
+
+		printk(KERN_WARNING LOGNAME ": io, irq and mem must be set\n");
+	}
+		
+	if (io == -1 ||
+	    !(io == 0x290 ||
+	      io == 0x260 ||
+	      io == 0x250 ||
+	      io == 0x240 ||
+	      io == 0x230 ||
+	      io == 0x220 ||
+	      io == 0x210 ||
+	      io == 0x3e0)) {
+
+		printk(KERN_ERR LOGNAME ": \"io\" - DSP I/O base must be set\n");
+		return -EINVAL;
+	}
+	
+	if (irq == -1 ||
+	    !(irq == 5 ||
+	      irq == 7 ||
+	      irq == 9 ||
+	      irq == 10 ||
+	      irq == 11 ||
+	      irq == 12)) {
+		
+		printk(KERN_ERR LOGNAME ": \"irq\" - must be set to 5, 7, 9, 10, 11 or 12\n");
+		return -EINVAL;
+	}
+
+	if (mem == -1 ||
+	    !(mem == 0xb0000 ||
+	      mem == 0xc8000 ||
+	      mem == 0xd0000 ||
+	      mem == 0xd8000 ||
+	      mem == 0xe0000 ||
+	      mem == 0xe8000)) {
+		
+		printk(KERN_ERR LOGNAME ": \"mem\" - must be set to "
+		       "0xb0000, 0xc8000, 0xd0000, 0xd8000, 0xe0000 or 0xe8000\n");
+		return -EINVAL;
+	}
+
+	switch (irq) {
+	case 5: dev.irqid = HPIRQ_5; break;
+	case 7: dev.irqid = HPIRQ_7; break;
+	case 9: dev.irqid = HPIRQ_9; break;
+	case 10: dev.irqid = HPIRQ_10; break;
+	case 11: dev.irqid = HPIRQ_11; break;
+	case 12: dev.irqid = HPIRQ_12; break;
+	}
+
+	switch (mem) {
+	case 0xb0000: dev.memid = HPMEM_B000; break;
+	case 0xc8000: dev.memid = HPMEM_C800; break;
+	case 0xd0000: dev.memid = HPMEM_D000; break;
+	case 0xd8000: dev.memid = HPMEM_D800; break;
+	case 0xe0000: dev.memid = HPMEM_E000; break;
+	case 0xe8000: dev.memid = HPMEM_E800; break;
+	}
+
+	if (fifosize < 16)
+		fifosize = 16;
+
+	if (fifosize > 768)
+		fifosize = 768;
+
+	dev.type = msndClassic;
+	dev.io = io;
+	dev.numio = DSP_NUMIO;
+	dev.irq = irq;
+	dev.base = phys_to_virt(mem);
+	dev.fifosize = fifosize * 1024;
+	dev.calibrate_signal = calibrate_signal ? 1 : 0;
+	dev.recsrc = 0;
+	dev.inc_ref = mod_inc_ref;
+	dev.dec_ref = mod_dec_ref;
+
+	init_waitqueue(&dev.writeblock);
+	init_waitqueue(&dev.readblock);
+	msnd_fifo_init(&dev.DAPF);
+	msnd_fifo_init(&dev.DARF);
+	spin_lock_init(&dev.lock);
+
+	printk(KERN_INFO LOGNAME ": Using %u byte digital audio FIFOs (x2)\n", dev.fifosize);
+
+	if ((err = msnd_fifo_alloc(&dev.DAPF, dev.fifosize)) < 0) {
+		
+		printk(KERN_ERR LOGNAME ": Couldn't allocate write FIFO\n");
+		return err;
+	}
+
+	if ((err = msnd_fifo_alloc(&dev.DARF, dev.fifosize)) < 0) {
+		
+		printk(KERN_ERR LOGNAME ": Couldn't allocate read FIFO\n");
+		msnd_fifo_free(&dev.DAPF);
+		return err;
+	}
+
+	if ((err = probe_multisound()) < 0) {
+
+		printk(KERN_ERR LOGNAME ": Probe failed\n");
+		msnd_fifo_free(&dev.DAPF);
+		msnd_fifo_free(&dev.DARF);
+		return err;
+
+	}
+	
+	if ((err = attach_multisound()) < 0) {
+
+		printk(KERN_ERR LOGNAME ": Attach failed\n");
+		msnd_fifo_free(&dev.DAPF);
+		msnd_fifo_free(&dev.DARF);
+		return err;
+
+	}
+
+	return 0;
+}
+
+void cleanup_module(void)
+{
+	printk(KERN_INFO LOGNAME ": Unloading\n");
+
+	unload_multisound();
+
+	msnd_fifo_free(&dev.DAPF);
+	msnd_fifo_free(&dev.DARF);
+
+}
+#endif