import of GPL'd AWE32 Sound Driver v0.4.2c

Submitted by:	Randall Hopper

6 files changed, 5488 insertions, 0 deletions

diff --git a/sys/gnu/i386/isa/sound/awe_compat.h b/sys/gnu/i386/isa/sound/awe_compat.h
new file mode 100644
index 000000000000..d0c34a1fa8ed
--- /dev/null
+++ b/sys/gnu/i386/isa/sound/awe_compat.h
@@ -0,0 +1,190 @@
+/*----------------------------------------------------------------
+ * compatibility macros for AWE32 driver
+ *----------------------------------------------------------------*/
+
+/* redefine following macros */
+#undef IOCTL_IN
+#undef IOCTL_OUT
+#undef OUTW
+#undef COPY_FROM_USER
+#undef COPY_TO_USER
+#undef GET_BYTE_FROM_USER
+#undef GET_SHORT_FROM_USER
+#undef IOCTL_TO_USER
+  
+#ifdef linux
+
+/*================================================================
+ * Linux macros
+ *================================================================*/
+
+/* use inline prefix */
+#define INLINE	inline
+
+/*----------------------------------------------------------------
+ * memory management for linux
+ *----------------------------------------------------------------*/
+
+#ifdef AWE_OBSOLETE_VOXWARE
+/* old type linux system */
+
+/* i/o requests; nothing */
+#define awe_check_port()	0	/* always false */
+#define awe_request_region()	/* nothing */
+#define awe_release_region()	/* nothing */
+
+static int _mem_start;  /* memory pointer for permanent buffers */
+
+#define my_malloc_init(memptr)	_mem_start = (memptr)
+#define my_malloc_memptr()	_mem_start
+#define my_free(ptr)	/* do nothing */
+#define my_realloc(buf,oldsize,size)	NULL	/* no realloc */
+
+static void *my_malloc(int size)
+{
+	char *ptr;
+	PERMANENT_MALLOC(ptr, char*, size, _mem_start);
+	return (void*)ptr;
+}
+
+/* allocate buffer only once */
+#define INIT_TABLE(buffer,index,nums,type) {\
+buffer = my_malloc(sizeof(type) * (nums)); index = (nums);\
+}
+
+#else
+
+#define AWE_DYNAMIC_BUFFER
+
+#define my_malloc_init(ptr)	/* nothing */
+#define my_malloc_memptr()	0
+#define my_malloc(size)		vmalloc(size)
+#define my_free(ptr)		if (ptr) {vfree(ptr);}
+
+static void *my_realloc(void *buf, int oldsize, int size)
+{
+	void *ptr;
+	if ((ptr = vmalloc(size)) == NULL)
+		return NULL;
+	memcpy(ptr, buf, ((oldsize < size) ? oldsize : size) );
+	vfree(buf);
+	return ptr;
+}
+
+/* do not allocate buffer at beginning */
+#define INIT_TABLE(buffer,index,nums,type) {buffer=NULL; index=0;}
+
+/* old type macro */
+#define RET_ERROR(err)		-err
+
+#endif
+
+/*----------------------------------------------------------------
+ * i/o interfaces for linux
+ *----------------------------------------------------------------*/
+
+#define OUTW(data,addr)		outw(data, addr)
+
+#ifdef AWE_NEW_KERNEL_INTERFACE
+#define COPY_FROM_USER(target,source,offs,count) \
+	copy_from_user(target, (source)+(offs), count)
+#define GET_BYTE_FROM_USER(target,addr,offs) \
+	get_user(target, (unsigned char*)&((addr)[offs]))
+#define GET_SHORT_FROM_USER(target,addr,offs) \
+	get_user(target, (unsigned short*)&((addr)[offs]))
+#ifdef AWE_OSS38
+#define IOCTL_TO_USER(target,offs,source,count) \
+	memcpy(target, (source)+(offs), count)
+#define IO_WRITE_CHECK(cmd)	(_SIOC_DIR(cmd) & _IOC_WRITE)
+#else
+#define IOCTL_TO_USER(target,offs,source,count) \
+	copy_to_user(target, (source)+(offs), count)
+#define IO_WRITE_CHECK(cmd)	(_IOC_DIR(cmd) & _IOC_WRITE)
+#endif /* AWE_OSS38 */
+#define COPY_TO_USER	IOCTL_TO_USER
+#define IOCTL_IN(arg)	(*(int*)(arg))
+#define IOCTL_OUT(arg,val) (*(int*)(arg) = (val))
+
+#else /* old type i/o */
+#define COPY_FROM_USER(target,source,offs,count) \
+	memcpy_fromfs(target, (source)+(offs), (count))
+#define GET_BYTE_FROM_USER(target,addr,offs) \
+	*((char  *)&(target)) = get_fs_byte((addr)+(offs))
+#define GET_SHORT_FROM_USER(target,addr,offs) \
+	*((short *)&(target)) = get_fs_word((addr)+(offs))
+#define IOCTL_TO_USER(target,offs,source,count) \
+	memcpy_tofs(target, (source)+(offs), (count))
+#define COPY_TO_USER	IOCTL_TO_USER
+#define IO_WRITE_CHECK(cmd)	(cmd & IOC_IN)
+#define IOCTL_IN(arg)		get_fs_long((long *)(arg))
+#define IOCTL_OUT(arg,ret)	snd_ioctl_return((int *)arg, ret)
+
+#endif /* AWE_NEW_KERNEL_INTERFACE */
+
+#define BZERO(target,len)	memset(target, 0, len)
+#define MEMCPY(dst,src,len)	memcpy(dst, src, len)
+
+
+#elif defined(__FreeBSD__)
+
+/*================================================================
+ * FreeBSD macros
+ *================================================================*/
+
+/* inline is not checked yet.. maybe it'll work */
+#define INLINE	/*inline*/
+
+/*----------------------------------------------------------------
+ * memory management for freebsd
+ *----------------------------------------------------------------*/
+
+/* i/o requests; nothing */
+#define awe_check_port()	0	/* always false */
+#define awe_request_region()	/* nothing */
+#define awe_release_region()	/* nothing */
+
+#define AWE_DYNAMIC_BUFFER
+
+#define my_malloc_init(ptr)	/* nothing */
+#define my_malloc_memptr()	0
+#define my_malloc(size)		malloc(size, M_TEMP, M_WAITOK)
+#define my_free(ptr)		if (ptr) {free(ptr, M_TEMP);}
+
+#define INIT_TABLE(buffer,index,nums,type) {buffer=NULL; index=0;}
+
+/* it should be realloc? */
+static void *my_realloc(void *buf, int oldsize, int size)
+{
+	void *ptr;
+	if ((ptr = my_malloc(size)) == NULL)
+		return NULL;
+	memcpy(ptr, buf, ((oldsize < size) ? oldsize : size) );
+	my_free(buf);
+	return ptr;
+}
+
+/*----------------------------------------------------------------
+ * i/o interfaces for freebsd
+ *----------------------------------------------------------------*/
+
+/* according to linux rule; the arguments are swapped */
+#define OUTW(data,addr)		outw(addr, data)
+
+#define COPY_FROM_USER(target,source,offs,count) \
+	uiomove(((caddr_t)(target)),(count),((struct uio *)(source)))
+#define COPY_TO_USER(target,source,offs,count) \
+	uiomove(((caddr_t)(source)),(count),((struct uio *)(target)))
+#define GET_BYTE_FROM_USER(target,addr,offs) \
+	uiomove(((char*)&(target)), 1, ((struct uio *)(addr)))
+#define GET_SHORT_FROM_USER(target,addr,offs) \
+	uiomove(((char*)&(target)), 2, ((struct uio *)(addr)))
+#define IOCTL_TO_USER(target,offs,source,count) \
+	memcpy(&((target)[offs]), (source), (count))
+#define IO_WRITE_CHECK(cmd)	(cmd & IOC_IN)
+#define IOCTL_IN(arg)		(*(int*)(arg))
+#define IOCTL_OUT(arg,val)	(*(int*)(arg) = (val))
+#define BZERO(target,len)	bzero((caddr_t)target, len)
+#define MEMCPY(dst,src,len)	bcopy((caddr_t)src, (caddr_t)dst, len)
+
+#endif
+
diff --git a/sys/gnu/i386/isa/sound/awe_config.h b/sys/gnu/i386/isa/sound/awe_config.h
new file mode 100644
index 000000000000..48dc8f835e50
--- /dev/null
+++ b/sys/gnu/i386/isa/sound/awe_config.h
@@ -0,0 +1,145 @@
+/*
+ * sound/awe_config.h
+ *
+ * Configuration of AWE32 sound driver
+ *   version 0.4.2; Sep. 15, 1997
+ *
+ * Copyright (C) 1996 Takashi Iwai
+ *
+ * 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.
+ */
+
+#ifndef AWE_CONFIG_H_DEF
+#define AWE_CONFIG_H_DEF
+
+/*----------------------------------------------------------------
+ * system configuration
+ *----------------------------------------------------------------*/
+
+/* if you're using obsolete VoxWare 3.0.x on Linux 1.2.x (or FreeBSD),
+ * define the following line.
+ */
+#undef AWE_OBSOLETE_VOXWARE
+
+#ifdef __FreeBSD__
+#  define AWE_OBSOLETE_VOXWARE
+#endif
+
+/* if you're using OSS-Lite on Linux 2.1.6 or later, define the
+ * following line.
+ */
+#undef AWE_NEW_KERNEL_INTERFACE
+
+/* if you have lowlevel.h in the lowlevel directory (OSS-Lite), define
+ * the following line.
+ */
+#undef HAS_LOWLEVEL_H
+
+/* if your system doesn't support patch manager (OSS 3.7 or newer),
+ * define the following line.
+ */
+#undef AWE_NO_PATCHMGR
+ 
+/* if your system has an additional parameter (OSS 3.8b5 or newer),
+ * define this.
+ */
+#undef AWE_OSS38
+
+/*----------------------------------------------------------------
+ * AWE32 card configuration:
+ * uncomment the following lines only when auto detection doesn't
+ * work properly on your machine.
+ *----------------------------------------------------------------*/
+
+/*#define AWE_DEFAULT_BASE_ADDR	0x620*/	/* base port address */
+/*#define AWE_DEFAULT_MEM_SIZE	512*/	/* kbytes */
+
+
+/*----------------------------------------------------------------
+ * maximum size of soundfont list table:
+ * you usually don't need to touch this value.
+ *----------------------------------------------------------------*/
+
+#define AWE_MAX_SF_LISTS 16
+
+
+/*----------------------------------------------------------------
+ * chunk size of sample and voice tables:
+ * you usually don't need to touch these values.
+ *----------------------------------------------------------------*/
+
+#define AWE_MAX_SAMPLES 400
+#define AWE_MAX_INFOS 800
+
+
+/*----------------------------------------------------------------
+ * chorus & reverb effects send for FM chip: from 0 to 0xff
+ * larger numbers often cause weird sounds.
+ *----------------------------------------------------------------*/
+
+#define DEF_FM_CHORUS_DEPTH	0x10
+#define DEF_FM_REVERB_DEPTH	0x10
+
+
+/*----------------------------------------------------------------*
+ * other compile conditions
+ *----------------------------------------------------------------*/
+
+/* initialize FM passthrough even without extended RAM */
+#undef AWE_ALWAYS_INIT_FM
+
+/* debug on */
+#define AWE_DEBUG_ON
+
+/* GUS compatible mode */
+#define AWE_HAS_GUS_COMPATIBILITY
+
+/* accept all notes/sounds off controls */
+#define AWE_ACCEPT_ALL_SOUNDS_CONTROL
+
+/* add mixer control of emu8000 equalizer */
+#define CONFIG_AWE32_MIXER
+
+/* look up voices according to MIDI channel priority */
+#define AWE_LOOKUP_MIDI_PRIORITY
+
+/*----------------------------------------------------------------*/
+
+/* reading configuration of sound driver */
+
+#ifdef AWE_OBSOLETE_VOXWARE
+
+#ifdef __FreeBSD__
+#  include <i386/isa/sound/sound_config.h>
+#else
+#  include "sound_config.h"
+#endif
+
+#if defined(CONFIGURE_SOUNDCARD) && !defined(EXCLUDE_AWE32)
+#define CONFIG_AWE32_SYNTH
+#endif
+
+#else /* AWE_OBSOLETE_VOXWARE */
+
+#ifdef HAS_LOWLEVEL_H
+#include "lowlevel.h"
+#endif
+
+#include "../sound_config.h"
+
+#endif /* AWE_OBSOLETE_VOXWARE */
+
+
+#endif  /* AWE_CONFIG_H_DEF */
diff --git a/sys/gnu/i386/isa/sound/awe_hw.h b/sys/gnu/i386/isa/sound/awe_hw.h
new file mode 100644
index 000000000000..7d0d88e77d5c
--- /dev/null
+++ b/sys/gnu/i386/isa/sound/awe_hw.h
@@ -0,0 +1,100 @@
+/*
+ * sound/awe_hw.h
+ *
+ * Access routines and definitions for the low level driver for the 
+ * AWE32/Sound Blaster 32 wave table synth.
+ *   version 0.4.2; Sep. 15, 1997
+ *
+ * Copyright (C) 1996,1997 Takashi Iwai
+ *
+ * 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.
+ */
+
+#ifndef AWE_HW_H_DEF
+#define AWE_HW_H_DEF
+
+/*
+ * Emu-8000 control registers
+ * name(channel)	reg, port
+ */
+
+#define awe_cmd_idx(reg,ch)	(((reg)<< 5) | (ch))
+
+#define Data0    0x620	/* doubleword r/w */
+#define Data1    0xA20	/* doubleword r/w */
+#define Data2    0xA22	/* word r/w */
+#define Data3    0xE20	/* word r/w */
+#define Pointer  0xE22	/* register pointer r/w */
+
+#define AWE_CPF(ch)	awe_cmd_idx(0,ch), Data0	/* DW: current pitch and fractional address */
+#define AWE_PTRX(ch)	awe_cmd_idx(1,ch), Data0	/* DW: pitch target and reverb send */
+#define AWE_CVCF(ch)	awe_cmd_idx(2,ch), Data0	/* DW: current volume and filter cutoff */
+#define AWE_VTFT(ch)	awe_cmd_idx(3,ch), Data0	/* DW: volume and filter cutoff targets */
+#define AWE_PSST(ch)	awe_cmd_idx(6,ch), Data0	/* DW: pan send and loop start address */
+#define AWE_CSL(ch)	awe_cmd_idx(7,ch), Data0	/* DW: chorus send and loop end address */
+#define AWE_CCCA(ch)	awe_cmd_idx(0,ch), Data1	/* DW: Q, control bits, and current address */
+#define AWE_HWCF4	awe_cmd_idx(1,9),  Data1	/* DW: config dw 4 */
+#define AWE_HWCF5	awe_cmd_idx(1,10), Data1	/* DW: config dw 5 */
+#define AWE_HWCF6	awe_cmd_idx(1,13), Data1	/* DW: config dw 6 */
+#define AWE_HWCF7	awe_cmd_idx(1,14), Data1	/* DW: config dw 7? (not documented) */
+#define AWE_SMALR	awe_cmd_idx(1,20), Data1	/* DW: sound memory address for left read */
+#define AWE_SMARR	awe_cmd_idx(1,21), Data1	/* DW:    for right read */
+#define AWE_SMALW	awe_cmd_idx(1,22), Data1	/* DW: sound memory address for left write */
+#define AWE_SMARW	awe_cmd_idx(1,23), Data1	/* DW:    for right write */
+#define AWE_SMLD	awe_cmd_idx(1,26), Data1	/* W: sound memory left data */
+#define AWE_SMRD	awe_cmd_idx(1,26), Data2	/* W:    right data */
+#define AWE_WC		awe_cmd_idx(1,27), Data2	/* W: sample counter */
+#define AWE_WC_Cmd	awe_cmd_idx(1,27)
+#define AWE_WC_Port	Data2
+#define AWE_HWCF1	awe_cmd_idx(1,29), Data1	/* W: config w 1 */
+#define AWE_HWCF2	awe_cmd_idx(1,30), Data1	/* W: config w 2 */
+#define AWE_HWCF3	awe_cmd_idx(1,31), Data1	/* W: config w 3 */
+#define AWE_INIT1(ch)	awe_cmd_idx(2,ch), Data1	/* W: init array 1 */
+#define AWE_INIT2(ch)	awe_cmd_idx(2,ch), Data2	/* W: init array 2 */
+#define AWE_INIT3(ch)	awe_cmd_idx(3,ch), Data1	/* W: init array 3 */
+#define AWE_INIT4(ch)	awe_cmd_idx(3,ch), Data2	/* W: init array 4 */
+#define AWE_ENVVOL(ch)	awe_cmd_idx(4,ch), Data1	/* W: volume envelope delay */
+#define AWE_DCYSUSV(ch)	awe_cmd_idx(5,ch), Data1	/* W: volume envelope sustain and decay */
+#define AWE_ENVVAL(ch)	awe_cmd_idx(6,ch), Data1	/* W: modulation envelope delay */
+#define AWE_DCYSUS(ch)	awe_cmd_idx(7,ch), Data1	/* W: modulation envelope sustain and decay */
+#define AWE_ATKHLDV(ch)	awe_cmd_idx(4,ch), Data2	/* W: volume envelope attack and hold */
+#define AWE_LFO1VAL(ch)	awe_cmd_idx(5,ch), Data2	/* W: LFO#1 Delay */
+#define AWE_ATKHLD(ch)	awe_cmd_idx(6,ch), Data2	/* W: modulation envelope attack and hold */
+#define AWE_LFO2VAL(ch)	awe_cmd_idx(7,ch), Data2	/* W: LFO#2 Delay */
+#define AWE_IP(ch)	awe_cmd_idx(0,ch), Data3	/* W: initial pitch */
+#define AWE_IFATN(ch)	awe_cmd_idx(1,ch), Data3	/* W: initial filter cutoff and attenuation */
+#define AWE_PEFE(ch)	awe_cmd_idx(2,ch), Data3	/* W: pitch and filter envelope heights */
+#define AWE_FMMOD(ch)	awe_cmd_idx(3,ch), Data3	/* W: vibrato and filter modulation freq */
+#define AWE_TREMFRQ(ch)	awe_cmd_idx(4,ch), Data3	/* W: LFO#1 tremolo amount and freq */
+#define AWE_FM2FRQ2(ch)	awe_cmd_idx(5,ch), Data3	/* W: LFO#2 vibrato amount and freq */
+
+/* used during detection (returns ROM version?; not documented in ADIP) */
+#define AWE_U1		0xE0, Data3	  /* (R)(W) used in initialization */
+#define AWE_U2(ch)	0xC0+(ch), Data3  /* (W)(W) used in init envelope  */
+
+
+#define AWE_MAX_VOICES		32
+#define AWE_NORMAL_VOICES	30	/*30&31 are reserved for DRAM refresh*/
+
+#define AWE_MAX_CHANNELS	32	/* max midi channels (must >= voices) */
+#define AWE_MAX_LAYERS	AWE_MAX_VOICES	/* maximum number of multiple layers */
+
+#define AWE_DRAM_OFFSET		0x200000
+#define AWE_MAX_DRAM_SIZE	(28 * 1024)	/* 28 MB is max onboard memory */
+
+#define AWE_DEFAULT_ATTENUATION	32	/* 12dB below */
+#define AWE_DEFAULT_MOD_SENSE	18
+
+#endif
diff --git a/sys/gnu/i386/isa/sound/awe_version.h b/sys/gnu/i386/isa/sound/awe_version.h
new file mode 100644
index 000000000000..40d10df046ea
--- /dev/null
+++ b/sys/gnu/i386/isa/sound/awe_version.h
@@ -0,0 +1,12 @@
+/* AWE32 driver version number */
+
+#ifndef AWE_VERSION_H_DEF
+#define AWE_VERSION_H_DEF
+
+#define AWE_VERSION_NUMBER	0x00040203
+#define AWEDRV_VERSION		"0.4.2c"
+#define AWE_MAJOR_VERSION(id)	(((id) >> 16) & 0xff)
+#define AWE_MINOR_VERSION(id)	(((id) >> 8) & 0xff)
+#define AWE_TINY_VERSION(id)	((id) & 0xff)
+
+#endif
diff --git a/sys/gnu/i386/isa/sound/awe_voice.h b/sys/gnu/i386/isa/sound/awe_voice.h
new file mode 100644
index 000000000000..aa131313141b
--- /dev/null
+++ b/sys/gnu/i386/isa/sound/awe_voice.h
@@ -0,0 +1,490 @@
+/*
+ * sound/awe_voice.h
+ *
+ * Voice information definitions for the low level driver for the 
+ * AWE32/Sound Blaster 32 wave table synth.
+ *   version 0.4.2c; Oct. 7, 1997
+ *
+ * Copyright (C) 1996,1997 Takashi Iwai
+ *
+ * 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.
+ */
+
+#ifndef AWE_VOICE_H
+#define AWE_VOICE_H
+
+#ifndef SAMPLE_TYPE_AWE32
+#define SAMPLE_TYPE_AWE32	0x20
+#endif
+
+#ifndef _PATCHKEY
+#define _PATCHKEY(id) ((id<<8)|0xfd)
+#endif
+
+/*----------------------------------------------------------------
+ * patch information record
+ *----------------------------------------------------------------*/
+
+/* patch interface header: 16 bytes */
+typedef struct awe_patch_info {
+	short key;			/* use AWE_PATCH here */
+#define AWE_PATCH	_PATCHKEY(0x07)
+
+	short device_no;		/* synthesizer number */
+	unsigned short sf_id;		/* file id (should be zero) */
+	short optarg;			/* optional argument */
+	int len;			/* data length (without this header) */
+
+	short type;			/* patch operation type */
+#define AWE_LOAD_INFO		0	/* awe_voice_rec */
+#define AWE_LOAD_DATA		1	/* awe_sample_info */
+#define AWE_OPEN_PATCH		2	/* awe_open_parm */
+#define AWE_CLOSE_PATCH		3	/* none */
+#define AWE_UNLOAD_PATCH	4	/* none */
+#define AWE_REPLACE_DATA	5	/* awe_sample_info (optarg=#channels)*/
+#define AWE_MAP_PRESET		6	/* awe_voice_map */
+#define AWE_LOAD_CHORUS_FX	0x10	/* awe_chorus_fx_rec (optarg=mode) */
+#define AWE_LOAD_REVERB_FX	0x11	/* awe_reverb_fx_rec (optarg=mode) */
+
+	short reserved;			/* word alignment data */
+
+	/* the actual patch data begins after this */
+#if defined(AWE_COMPAT_030) && AWE_COMPAT_030
+	char data[0];
+#endif
+} awe_patch_info;
+
+/*#define AWE_PATCH_INFO_SIZE	16*/
+#define AWE_PATCH_INFO_SIZE	sizeof(awe_patch_info)
+
+
+/*----------------------------------------------------------------
+ * open patch
+ *----------------------------------------------------------------*/
+
+#define AWE_PATCH_NAME_LEN	32
+
+typedef struct _awe_open_parm {
+	unsigned short type;		/* sample type */
+#define AWE_PAT_TYPE_MISC	0
+#define AWE_PAT_TYPE_GM		1
+#define AWE_PAT_TYPE_GS		2
+#define AWE_PAT_TYPE_MT32	3
+#define AWE_PAT_TYPE_XG		4
+#define AWE_PAT_TYPE_SFX	5
+#define AWE_PAT_TYPE_GUS	6
+#define AWE_PAT_TYPE_MAP	7
+
+#define AWE_PAT_LOCKED		0x100	/* lock the samples */
+
+	short reserved;
+	char name[AWE_PATCH_NAME_LEN];
+} awe_open_parm;
+
+/*#define AWE_OPEN_PARM_SIZE	28*/
+#define AWE_OPEN_PARM_SIZE	sizeof(awe_open_parm)
+
+
+/*----------------------------------------------------------------
+ * raw voice information record
+ *----------------------------------------------------------------*/
+
+/* wave table envelope & effect parameters to control EMU8000 */
+typedef struct _awe_voice_parm {
+	unsigned short moddelay;	/* modulation delay (0x8000) */
+	unsigned short modatkhld;	/* modulation attack & hold time (0x7f7f) */
+	unsigned short moddcysus;	/* modulation decay & sustain (0x7f7f) */
+	unsigned short modrelease;	/* modulation release time (0x807f) */
+	short modkeyhold, modkeydecay;	/* envelope change per key (not used) */
+	unsigned short voldelay;	/* volume delay (0x8000) */
+	unsigned short volatkhld;	/* volume attack & hold time (0x7f7f) */
+	unsigned short voldcysus;	/* volume decay & sustain (0x7f7f) */
+	unsigned short volrelease;	/* volume release time (0x807f) */
+	short volkeyhold, volkeydecay;	/* envelope change per key (not used) */
+	unsigned short lfo1delay;	/* LFO1 delay (0x8000) */
+	unsigned short lfo2delay;	/* LFO2 delay (0x8000) */
+	unsigned short pefe;		/* modulation pitch & cutoff (0x0000) */
+	unsigned short fmmod;		/* LFO1 pitch & cutoff (0x0000) */
+	unsigned short tremfrq;		/* LFO1 volume & freq (0x0000) */
+	unsigned short fm2frq2;		/* LFO2 pitch & freq (0x0000) */
+	unsigned char cutoff;		/* initial cutoff (0xff) */
+	unsigned char filterQ;		/* initial filter Q [0-15] (0x0) */
+	unsigned char chorus;		/* chorus send (0x00) */
+	unsigned char reverb;		/* reverb send (0x00) */
+	unsigned short reserved[4];	/* not used */
+} awe_voice_parm;
+
+#define AWE_VOICE_PARM_SIZE	48
+
+
+/* wave table parameters: 92 bytes */
+typedef struct _awe_voice_info {
+	unsigned short sf_id;		/* file id (should be zero) */
+	unsigned short sample;		/* sample id */
+	int start, end;			/* sample offset correction */
+	int loopstart, loopend;		/* loop offset correction */
+	short rate_offset;		/* sample rate pitch offset */
+	unsigned short mode;		/* sample mode */
+#define AWE_MODE_ROMSOUND		0x8000
+#define AWE_MODE_STEREO			1
+#define AWE_MODE_LOOPING		2
+#define AWE_MODE_NORELEASE		4	/* obsolete */
+#define AWE_MODE_INIT_PARM		8
+
+	short root;			/* midi root key */
+	short tune;			/* pitch tuning (in cents) */
+	char low, high;			/* key note range */
+	char vellow, velhigh;		/* velocity range */
+	char fixkey, fixvel;		/* fixed key, velocity */
+	char pan, fixpan;		/* panning, fixed panning */
+	short exclusiveClass;		/* exclusive class (0 = none) */
+	unsigned char amplitude;	/* sample volume (127 max) */
+	unsigned char attenuation;	/* attenuation (0.375dB) */
+	short scaleTuning;		/* pitch scale tuning(%), normally 100 */
+	awe_voice_parm parm;		/* voice envelope parameters */
+	short index;			/* internal index (set by driver) */
+} awe_voice_info;
+
+/*#define AWE_VOICE_INFO_SIZE	92*/
+#define AWE_VOICE_INFO_SIZE	sizeof(awe_voice_info)
+
+/*----------------------------------------------------------------*/
+
+/* The info entry of awe_voice_rec is changed from 0 to 1
+ * for some compilers refusing zero size array.
+ * Due to this change, sizeof(awe_voice_rec) becomes different
+ * from older versions.
+ * Use AWE_VOICE_REC_SIZE instead.
+ */
+
+/* instrument info header: 4 bytes */
+typedef struct _awe_voice_rec_hdr {
+	unsigned char bank;		/* midi bank number */
+	unsigned char instr;		/* midi preset number */
+	char nvoices;			/* number of voices */
+	char write_mode;		/* write mode; normally 0 */
+#define AWE_WR_APPEND		0	/* append anyway */
+#define AWE_WR_EXCLUSIVE	1	/* skip if already exists */
+#define AWE_WR_REPLACE		2	/* replace if already exists */
+} awe_voice_rec_hdr;
+
+/*#define AWE_VOICE_REC_SIZE	4*/
+#define AWE_VOICE_REC_SIZE	sizeof(awe_voice_rec_hdr)
+
+/* the standard patch structure for one sample */
+typedef struct _awe_voice_rec_patch {
+	awe_patch_info		patch;
+	awe_voice_rec_hdr	hdr;
+	awe_voice_info		info;
+} awe_voice_rec_patch;
+
+
+/* obsolete data type */
+#if defined(AWE_COMPAT_030) && AWE_COMPAT_030
+#define AWE_INFOARRAY_SIZE	0
+#else
+#define AWE_INFOARRAY_SIZE	1
+#endif
+
+typedef struct _awe_voice_rec {
+	unsigned char bank;		/* midi bank number */
+	unsigned char instr;		/* midi preset number */
+	short nvoices;			/* number of voices */
+	/* voice information follows here */
+	awe_voice_info info[AWE_INFOARRAY_SIZE];
+} awe_voice_rec;
+
+
+/*----------------------------------------------------------------
+ * sample wave information
+ *----------------------------------------------------------------*/
+
+/* wave table sample header: 32 bytes */
+typedef struct awe_sample_info {
+	unsigned short sf_id;		/* file id (should be zero) */
+	unsigned short sample;		/* sample id */
+	int start, end;			/* start & end offset */
+	int loopstart, loopend;		/* loop start & end offset */
+	int size;			/* size (0 = ROM) */
+	short checksum_flag;		/* use check sum = 1 */
+	unsigned short mode_flags;	/* mode flags */
+#define AWE_SAMPLE_8BITS	1	/* wave data is 8bits */
+#define AWE_SAMPLE_UNSIGNED	2	/* wave data is unsigned */
+#define AWE_SAMPLE_NO_BLANK	4	/* no blank loop is attached */
+#define AWE_SAMPLE_SINGLESHOT	8	/* single-shot w/o loop */
+#define AWE_SAMPLE_BIDIR_LOOP	16	/* bidirectional looping */
+#define AWE_SAMPLE_STEREO_LEFT	32	/* stereo left sound */
+#define AWE_SAMPLE_STEREO_RIGHT	64	/* stereo right sound */
+#define AWE_SAMPLE_REVERSE_LOOP 128	/* reverse looping */
+	unsigned int checksum;		/* check sum */
+#if defined(AWE_COMPAT_030) && AWE_COMPAT_030
+	unsigned short data[0];		/* sample data follows here */
+#endif
+} awe_sample_info;
+
+/*#define AWE_SAMPLE_INFO_SIZE	32*/
+#define AWE_SAMPLE_INFO_SIZE	sizeof(awe_sample_info)
+
+
+/*----------------------------------------------------------------
+ * voice preset mapping
+ *----------------------------------------------------------------*/
+
+typedef struct awe_voice_map {
+	int map_bank, map_instr, map_key;	/* key = -1 means all keys */
+	int src_bank, src_instr, src_key;
+} awe_voice_map;
+
+#define AWE_VOICE_MAP_SIZE	sizeof(awe_voice_map)
+
+
+/*----------------------------------------------------------------
+ * awe hardware controls
+ *----------------------------------------------------------------*/
+
+#define _AWE_DEBUG_MODE			0x00
+#define _AWE_REVERB_MODE		0x01
+#define _AWE_CHORUS_MODE		0x02
+#define _AWE_REMOVE_LAST_SAMPLES	0x03
+#define _AWE_INITIALIZE_CHIP		0x04
+#define _AWE_SEND_EFFECT		0x05
+#define _AWE_TERMINATE_CHANNEL		0x06
+#define _AWE_TERMINATE_ALL		0x07
+#define _AWE_INITIAL_VOLUME		0x08
+#define _AWE_INITIAL_ATTEN	_AWE_INITIAL_VOLUME
+#define _AWE_RESET_CHANNEL		0x09
+#define _AWE_CHANNEL_MODE		0x0a
+#define _AWE_DRUM_CHANNELS		0x0b
+#define _AWE_MISC_MODE			0x0c
+#define _AWE_RELEASE_ALL		0x0d
+#define _AWE_NOTEOFF_ALL		0x0e
+#define _AWE_CHN_PRESSURE		0x0f
+/*#define _AWE_GET_CURRENT_MODE		0x10*/
+#define _AWE_EQUALIZER			0x11
+/*#define _AWE_GET_MISC_MODE		0x12*/
+/*#define _AWE_GET_FONTINFO		0x13*/
+
+#define _AWE_MODE_FLAG			0x80
+#define _AWE_COOKED_FLAG		0x40	/* not supported */
+#define _AWE_MODE_VALUE_MASK		0x3F
+
+/*----------------------------------------------------------------*/
+
+#define _AWE_SET_CMD(p,dev,voice,cmd,p1,p2) \
+{((char*)(p))[0] = SEQ_PRIVATE;\
+ ((char*)(p))[1] = dev;\
+ ((char*)(p))[2] = _AWE_MODE_FLAG|(cmd);\
+ ((char*)(p))[3] = voice;\
+ ((unsigned short*)(p))[2] = p1;\
+ ((unsigned short*)(p))[3] = p2;}
+
+/* buffered access */
+#define _AWE_CMD(dev, voice, cmd, p1, p2) \
+{_SEQ_NEEDBUF(8);\
+ _AWE_SET_CMD(_seqbuf + _seqbufptr, dev, voice, cmd, p1, p2);\
+ _SEQ_ADVBUF(8);}
+
+/* direct access */
+#define _AWE_CMD_NOW(seqfd,dev,voice,cmd,p1,p2) \
+{struct seq_event_rec tmp;\
+ _AWE_SET_CMD(&tmp, dev, voice, cmd, p1, p2);\
+ ioctl(seqfd, SNDCTL_SEQ_OUTOFBAND, &tmp);}
+
+/*----------------------------------------------------------------*/
+
+/* set debugging mode */
+#define AWE_DEBUG_MODE(dev,p1)	_AWE_CMD(dev, 0, _AWE_DEBUG_MODE, p1, 0)
+/* set reverb mode; from 0 to 7 */
+#define AWE_REVERB_MODE(dev,p1)	_AWE_CMD(dev, 0, _AWE_REVERB_MODE, p1, 0)
+/* set chorus mode; from 0 to 7 */
+#define AWE_CHORUS_MODE(dev,p1)	_AWE_CMD(dev, 0, _AWE_CHORUS_MODE, p1, 0)
+
+/* reset channel */
+#define AWE_RESET_CHANNEL(dev,ch) _AWE_CMD(dev, ch, _AWE_RESET_CHANNEL, 0, 0)
+#define AWE_RESET_CONTROL(dev,ch) _AWE_CMD(dev, ch, _AWE_RESET_CHANNEL, 1, 0)
+
+/* send an effect to all layers */
+#define AWE_SEND_EFFECT(dev,voice,type,value) _AWE_CMD(dev,voice,_AWE_SEND_EFFECT,type,value)
+#define AWE_ADD_EFFECT(dev,voice,type,value) _AWE_CMD(dev,voice,_AWE_SEND_EFFECT,((type)|0x80),value)
+#define AWE_UNSET_EFFECT(dev,voice,type) _AWE_CMD(dev,voice,_AWE_SEND_EFFECT,((type)|0x40),0)
+/* send an effect to a layer */
+#define AWE_SEND_LAYER_EFFECT(dev,voice,layer,type,value) _AWE_CMD(dev,voice,_AWE_SEND_EFFECT,((layer+1)<<8|(type)),value)
+#define AWE_ADD_LAYER_EFFECT(dev,voice,layer,type,value) _AWE_CMD(dev,voice,_AWE_SEND_EFFECT,((layer+1)<<8|(type)|0x80),value)
+#define AWE_UNSET_LAYER_EFFECT(dev,voice,layer,type) _AWE_CMD(dev,voice,_AWE_SEND_EFFECT,((layer+1)<<8|(type)|0x40),0)
+
+/* terminate sound on the channel/voice */
+#define AWE_TERMINATE_CHANNEL(dev,voice) _AWE_CMD(dev,voice,_AWE_TERMINATE_CHANNEL,0,0)
+/* terminate all sounds */
+#define AWE_TERMINATE_ALL(dev) _AWE_CMD(dev, 0, _AWE_TERMINATE_ALL, 0, 0)
+/* release all sounds (w/o sustain effect) */
+#define AWE_RELEASE_ALL(dev) _AWE_CMD(dev, 0, _AWE_RELEASE_ALL, 0, 0)
+/* note off all sounds (w sustain effect) */
+#define AWE_NOTEOFF_ALL(dev) _AWE_CMD(dev, 0, _AWE_NOTEOFF_ALL, 0, 0)
+
+/* set initial attenuation */
+#define AWE_INITIAL_VOLUME(dev,atten) _AWE_CMD(dev, 0, _AWE_INITIAL_VOLUME, atten, 0)
+#define AWE_INITIAL_ATTEN  AWE_INITIAL_VOLUME
+/* relative attenuation */
+#define AWE_SET_ATTEN(dev,atten)  _AWE_CMD(dev, 0, _AWE_INITIAL_VOLUME, atten, 1)
+
+/* set channel playing mode; mode=0/1/2 */
+#define AWE_SET_CHANNEL_MODE(dev,mode) _AWE_CMD(dev, 0, _AWE_CHANNEL_MODE, mode, 0)
+#define AWE_PLAY_INDIRECT	0	/* indirect voice mode (default) */
+#define AWE_PLAY_MULTI		1	/* multi note voice mode */
+#define AWE_PLAY_DIRECT		2	/* direct single voice mode */
+#define AWE_PLAY_MULTI2		3	/* sequencer2 mode; used internally */
+
+/* set drum channel mask; channels is 32bit long value */
+#define AWE_DRUM_CHANNELS(dev,channels) _AWE_CMD(dev, 0, _AWE_DRUM_CHANNELS, ((channels) & 0xffff), ((channels) >> 16))
+
+/* set bass and treble control; values are from 0 to 11 */
+#define AWE_EQUALIZER(dev,bass,treble) _AWE_CMD(dev, 0, _AWE_EQUALIZER, bass, treble)
+
+/* remove last loaded samples */
+#define AWE_REMOVE_LAST_SAMPLES(seqfd,dev) _AWE_CMD_NOW(seqfd, dev, 0, _AWE_REMOVE_LAST_SAMPLES, 0, 0)
+/* initialize emu8000 chip */
+#define AWE_INITIALIZE_CHIP(seqfd,dev) _AWE_CMD_NOW(seqfd, dev, 0, _AWE_INITIALIZE_CHIP, 0, 0)
+
+/* set miscellaneous modes; meta command */
+#define AWE_MISC_MODE(dev,mode,value) _AWE_CMD(dev, 0, _AWE_MISC_MODE, mode, value)
+/* exclusive sound off; 1=off */
+#define AWE_EXCLUSIVE_SOUND(dev,mode) AWE_MISC_MODE(dev,AWE_MD_EXCLUSIVE_SOUND,mode)
+/* default GUS bank number */
+#define AWE_SET_GUS_BANK(dev,bank) AWE_MISC_MODE(dev,AWE_MD_GUS_BANK,bank)
+/* change panning position in realtime; 0=don't 1=do */
+#define AWE_REALTIME_PAN(dev,mode) AWE_MISC_MODE(dev,AWE_MD_REALTIME_PAN,mode)
+
+/* extended pressure controls; not portable with other sound drivers */
+#define AWE_KEY_PRESSURE(dev,ch,note,vel) SEQ_START_NOTE(dev,ch,(note)+128,vel)
+#define AWE_CHN_PRESSURE(dev,ch,vel) _AWE_CMD(dev,ch,_AWE_CHN_PRESSURE,vel,0)
+
+/*----------------------------------------------------------------*/
+
+/* reverb mode parameters */
+#define	AWE_REVERB_ROOM1	0
+#define AWE_REVERB_ROOM2	1
+#define	AWE_REVERB_ROOM3	2
+#define	AWE_REVERB_HALL1	3
+#define	AWE_REVERB_HALL2	4
+#define	AWE_REVERB_PLATE	5
+#define	AWE_REVERB_DELAY	6
+#define	AWE_REVERB_PANNINGDELAY 7
+#define AWE_REVERB_PREDEFINED	8
+/* user can define reverb modes up to 32 */
+#define AWE_REVERB_NUMBERS	32
+
+typedef struct awe_reverb_fx_rec {
+	unsigned short parms[28];
+} awe_reverb_fx_rec;
+
+/*----------------------------------------------------------------*/
+
+/* chorus mode parameters */
+#define AWE_CHORUS_1		0
+#define	AWE_CHORUS_2		1
+#define	AWE_CHORUS_3		2
+#define	AWE_CHORUS_4		3
+#define	AWE_CHORUS_FEEDBACK	4
+#define	AWE_CHORUS_FLANGER	5
+#define	AWE_CHORUS_SHORTDELAY	6
+#define	AWE_CHORUS_SHORTDELAY2	7
+#define AWE_CHORUS_PREDEFINED	8
+/* user can define chorus modes up to 32 */
+#define AWE_CHORUS_NUMBERS	32
+
+typedef struct awe_chorus_fx_rec {
+	unsigned short feedback;	/* feedback level (0xE600-0xE6FF) */
+	unsigned short delay_offset;	/* delay (0-0x0DA3) [1/44100 sec] */
+	unsigned short lfo_depth;	/* LFO depth (0xBC00-0xBCFF) */
+	unsigned int delay;	/* right delay (0-0xFFFFFFFF) [1/256/44100 sec] */
+	unsigned int lfo_freq;		/* LFO freq LFO freq (0-0xFFFFFFFF) */
+} awe_chorus_fx_rec;
+
+/*----------------------------------------------------------------*/
+
+/* misc mode types */
+enum {
+/* 0*/	AWE_MD_EXCLUSIVE_OFF,	/* obsolete */
+/* 1*/	AWE_MD_EXCLUSIVE_ON,	/* obsolete */
+/* 2*/	AWE_MD_VERSION,		/* read only */
+/* 3*/	AWE_MD_EXCLUSIVE_SOUND,	/* ignored */
+/* 4*/	AWE_MD_REALTIME_PAN,	/* 0/1: do realtime pan change (default=1) */
+/* 5*/	AWE_MD_GUS_BANK,	/* bank number for GUS patches (default=0) */
+/* 6*/	AWE_MD_KEEP_EFFECT,	/* 0/1: keep effect values, (default=0) */
+/* 7*/	AWE_MD_ZERO_ATTEN,	/* attenuation of max volume (default=32) */
+/* 8*/	AWE_MD_CHN_PRIOR,	/* 0/1: set MIDI channel priority mode (default=1) */
+/* 9*/	AWE_MD_MOD_SENSE,	/* integer: modwheel sensitivity (def=18) */
+/*10*/	AWE_MD_DEF_PRESET,	/* integer: default preset number (def=0) */
+/*11*/	AWE_MD_DEF_BANK,	/* integer: default bank number (def=0) */
+/*12*/	AWE_MD_DEF_DRUM,	/* integer: default drumset number (def=0) */
+/*13*/	AWE_MD_TOGGLE_DRUM_BANK, /* 0/1: toggle drum flag with bank# (def=0) */
+	AWE_MD_END,
+};
+
+/*----------------------------------------------------------------*/
+
+/* effect parameters */
+enum {
+
+/* modulation envelope parameters */
+/* 0*/	AWE_FX_ENV1_DELAY,	/* WORD: ENVVAL */
+/* 1*/	AWE_FX_ENV1_ATTACK,	/* BYTE: up ATKHLD */
+/* 2*/	AWE_FX_ENV1_HOLD,	/* BYTE: lw ATKHLD */
+/* 3*/	AWE_FX_ENV1_DECAY,	/* BYTE: lw DCYSUS */
+/* 4*/	AWE_FX_ENV1_RELEASE,	/* BYTE: lw DCYSUS */
+/* 5*/	AWE_FX_ENV1_SUSTAIN,	/* BYTE: up DCYSUS */
+/* 6*/	AWE_FX_ENV1_PITCH,	/* BYTE: up PEFE */
+/* 7*/	AWE_FX_ENV1_CUTOFF,	/* BYTE: lw PEFE */
+
+/* volume envelope parameters */
+/* 8*/	AWE_FX_ENV2_DELAY,	/* WORD: ENVVOL */
+/* 9*/	AWE_FX_ENV2_ATTACK,	/* BYTE: up ATKHLDV */
+/*10*/	AWE_FX_ENV2_HOLD,	/* BYTE: lw ATKHLDV */
+/*11*/	AWE_FX_ENV2_DECAY,	/* BYTE: lw DCYSUSV */
+/*12*/	AWE_FX_ENV2_RELEASE,	/* BYTE: lw DCYSUSV */
+/*13*/	AWE_FX_ENV2_SUSTAIN,	/* BYTE: up DCYSUSV */
+	
+/* LFO1 (tremolo & vibrato) parameters */
+/*14*/	AWE_FX_LFO1_DELAY,	/* WORD: LFO1VAL */
+/*15*/	AWE_FX_LFO1_FREQ,	/* BYTE: lo TREMFRQ */
+/*16*/	AWE_FX_LFO1_VOLUME,	/* BYTE: up TREMFRQ */
+/*17*/	AWE_FX_LFO1_PITCH,	/* BYTE: up FMMOD */
+/*18*/	AWE_FX_LFO1_CUTOFF,	/* BYTE: lo FMMOD */
+
+/* LFO2 (vibrato) parameters */
+/*19*/	AWE_FX_LFO2_DELAY,	/* WORD: LFO2VAL */
+/*20*/	AWE_FX_LFO2_FREQ,	/* BYTE: lo FM2FRQ2 */
+/*21*/	AWE_FX_LFO2_PITCH,	/* BYTE: up FM2FRQ2 */
+
+/* Other overall effect parameters */
+/*22*/	AWE_FX_INIT_PITCH,	/* SHORT: pitch offset */
+/*23*/	AWE_FX_CHORUS,		/* BYTE: chorus effects send (0-255) */
+/*24*/	AWE_FX_REVERB,		/* BYTE: reverb effects send (0-255) */
+/*25*/	AWE_FX_CUTOFF,		/* BYTE: up IFATN */
+/*26*/	AWE_FX_FILTERQ,		/* BYTE: up CCCA */
+
+/* Sample / loop offset changes */
+/*27*/	AWE_FX_SAMPLE_START,	/* SHORT: offset */
+/*28*/	AWE_FX_LOOP_START,	/* SHORT: offset */
+/*29*/	AWE_FX_LOOP_END,	/* SHORT: offset */
+/*30*/	AWE_FX_COARSE_SAMPLE_START,	/* SHORT: upper word offset */
+/*31*/	AWE_FX_COARSE_LOOP_START,	/* SHORT: upper word offset */
+/*32*/	AWE_FX_COARSE_LOOP_END,		/* SHORT: upper word offset */
+/*33*/	AWE_FX_ATTEN,		/* BYTE: lo IFATN */
+
+	AWE_FX_END,
+};
+
+#endif /* AWE_VOICE_H */
diff --git a/sys/gnu/i386/isa/sound/awe_wave.c b/sys/gnu/i386/isa/sound/awe_wave.c
new file mode 100644
index 000000000000..74803110f954
--- /dev/null
+++ b/sys/gnu/i386/isa/sound/awe_wave.c
@@ -0,0 +1,4551 @@
+/*
+ * sound/awe_wave.c
+ *
+ * The low level driver for the AWE32/Sound Blaster 32 wave table synth.
+ *   version 0.4.2c; Oct. 7, 1997
+ *
+ * Copyright (C) 1996,1997 Takashi Iwai
+ *
+ * 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.
+ */
+
+#ifdef __FreeBSD__
+#  include <i386/isa/sound/awe_config.h>
+#else
+#  include "awe_config.h"
+#endif
+
+/*----------------------------------------------------------------*/
+
+#ifdef CONFIG_AWE32_SYNTH
+
+#ifdef __FreeBSD__
+#  include <i386/isa/sound/awe_hw.h>
+#  include <i386/isa/sound/awe_version.h>
+#  include <i386/isa/sound/awe_voice.h>
+#else
+#  include "awe_hw.h"
+#  include "awe_version.h"
+#  include <linux/awe_voice.h>
+#endif
+
+#ifdef AWE_HAS_GUS_COMPATIBILITY
+/* include finetune table */
+#ifdef AWE_OBSOLETE_VOXWARE
+#  ifdef __FreeBSD__
+#    define SEQUENCER_C
+#    include <i386/isa/sound/tuning.h>
+#  else
+#    include "tuning.h"
+#  endif
+#else
+#  include "../tuning.h"
+#endif
+
+#ifdef linux
+#  include <linux/ultrasound.h>
+#elif defined(__FreeBSD__)
+#  include <machine/ultrasound.h>
+#endif
+
+#endif /* AWE_HAS_GUS_COMPATIBILITY */
+
+
+/*----------------------------------------------------------------
+ * debug message
+ *----------------------------------------------------------------*/
+
+static int debug_mode = 0;
+#ifdef AWE_DEBUG_ON
+#define DEBUG(LVL,XXX)	{if (debug_mode > LVL) { XXX; }}
+#define ERRMSG(XXX)	{if (debug_mode) { XXX; }}
+#define FATALERR(XXX)	XXX
+#else
+#define DEBUG(LVL,XXX) /**/
+#define ERRMSG(XXX)	XXX
+#define FATALERR(XXX)	XXX
+#endif
+
+/*----------------------------------------------------------------
+ * bank and voice record
+ *----------------------------------------------------------------*/
+
+/* soundfont record */
+typedef struct _sf_list {
+	unsigned short sf_id;
+	unsigned short type;
+	int num_info;		/* current info table index */
+	int num_sample;		/* current sample table index */
+	int mem_ptr;		/* current word byte pointer */
+	int infos;
+	int samples;
+	/*char name[AWE_PATCH_NAME_LEN];*/
+} sf_list;
+
+/* bank record */
+typedef struct _awe_voice_list {
+	int next;	/* linked list with same sf_id */
+	unsigned char bank, instr;	/* preset number information */
+	char type, disabled;	/* type=normal/mapped, disabled=boolean */
+	awe_voice_info v;	/* voice information */
+	int next_instr;	/* preset table list */
+	int next_bank;	/* preset table list */
+} awe_voice_list;
+
+/* voice list type */
+#define V_ST_NORMAL	0
+#define V_ST_MAPPED	1
+
+typedef struct _awe_sample_list {
+	int next;	/* linked list with same sf_id */
+	awe_sample_info v;	/* sample information */
+} awe_sample_list;
+
+/* sample and information table */
+static int current_sf_id = 0;
+static int locked_sf_id = 0;
+static int max_sfs;
+static sf_list *sflists = NULL;
+
+#define awe_free_mem_ptr() (current_sf_id <= 0 ? 0 : sflists[current_sf_id-1].mem_ptr)
+#define awe_free_info() (current_sf_id <= 0 ? 0 : sflists[current_sf_id-1].num_info)
+#define awe_free_sample() (current_sf_id <= 0 ? 0 : sflists[current_sf_id-1].num_sample)
+
+static int max_samples;
+static awe_sample_list *samples = NULL;
+
+static int max_infos;
+static awe_voice_list *infos = NULL;
+
+
+#define AWE_MAX_PRESETS		256
+#define AWE_DEFAULT_PRESET	0
+#define AWE_DEFAULT_BANK	0
+#define AWE_DEFAULT_DRUM	0
+#define AWE_DRUM_BANK		128
+
+#define MAX_LAYERS	AWE_MAX_VOICES
+
+/* preset table index */
+static int preset_table[AWE_MAX_PRESETS];
+
+/*----------------------------------------------------------------
+ * voice table
+ *----------------------------------------------------------------*/
+
+/* effects table */
+typedef	struct FX_Rec { /* channel effects */
+	unsigned char flags[AWE_FX_END];
+	short val[AWE_FX_END];
+} FX_Rec;
+
+
+/* channel parameters */
+typedef struct _awe_chan_info {
+	int channel;		/* channel number */
+	int bank;		/* current tone bank */
+	int instr;		/* current program */
+	int bender;		/* midi pitchbend (-8192 - 8192) */
+	int bender_range;	/* midi bender range (x100) */
+	int panning;		/* panning (0-127) */
+	int main_vol;		/* channel volume (0-127) */
+	int expression_vol;	/* midi expression (0-127) */
+	int chan_press;		/* channel pressure */
+	int vrec;		/* instrument list */
+	int def_vrec;		/* default instrument list */
+	int sustained;		/* sustain status in MIDI */
+	FX_Rec fx;		/* effects */
+	FX_Rec fx_layer[MAX_LAYERS]; /* layer effects */
+} awe_chan_info;
+
+/* voice parameters */
+typedef struct _voice_info {
+	int state;
+#define AWE_ST_OFF		(1<<0)	/* no sound */
+#define AWE_ST_ON		(1<<1)	/* playing */
+#define AWE_ST_STANDBY		(1<<2)	/* stand by for playing */
+#define AWE_ST_SUSTAINED	(1<<3)	/* sustained */
+#define AWE_ST_MARK		(1<<4)	/* marked for allocation */
+#define AWE_ST_DRAM		(1<<5)	/* DRAM read/write */
+#define AWE_ST_FM		(1<<6)	/* reserved for FM */
+#define AWE_ST_RELEASED		(1<<7)	/* released */
+
+	int ch;			/* midi channel */
+	int key;		/* internal key for search */
+	int layer;		/* layer number (for channel mode only) */
+	int time;		/* allocated time */
+	awe_chan_info	*cinfo;	/* channel info */
+
+	int note;		/* midi key (0-127) */
+	int velocity;		/* midi velocity (0-127) */
+	int sostenuto;		/* sostenuto on/off */
+	awe_voice_info *sample;	/* assigned voice */
+
+	/* EMU8000 parameters */
+	int apitch;		/* pitch parameter */
+	int avol;		/* volume parameter */
+	int apan;		/* panning parameter */
+} voice_info;
+
+/* voice information */
+static voice_info *voices;
+
+#define IS_NO_SOUND(v)	(voices[v].state & (AWE_ST_OFF|AWE_ST_RELEASED|AWE_ST_STANDBY|AWE_ST_SUSTAINED))
+#define IS_NO_EFFECT(v)	(voices[v].state != AWE_ST_ON)
+#define IS_PLAYING(v)	(voices[v].state & (AWE_ST_ON|AWE_ST_SUSTAINED|AWE_ST_RELEASED))
+#define IS_EMPTY(v)	(voices[v].state & (AWE_ST_OFF|AWE_ST_MARK|AWE_ST_DRAM|AWE_ST_FM))
+
+
+/* MIDI channel effects information (for hw control) */
+static awe_chan_info *channels;
+
+
+/*----------------------------------------------------------------
+ * global variables
+ *----------------------------------------------------------------*/
+
+#ifndef AWE_DEFAULT_BASE_ADDR
+#define AWE_DEFAULT_BASE_ADDR	0	/* autodetect */
+#endif
+
+#ifndef AWE_DEFAULT_MEM_SIZE
+#define AWE_DEFAULT_MEM_SIZE	0	/* autodetect */
+#endif
+
+/* awe32 base address (overwritten at initialization) */
+static int awe_base = AWE_DEFAULT_BASE_ADDR;
+/* memory byte size */
+static int awe_mem_size = AWE_DEFAULT_MEM_SIZE;
+/* DRAM start offset */
+static int awe_mem_start = AWE_DRAM_OFFSET;
+
+/* maximum channels for playing */
+static int awe_max_voices = AWE_MAX_VOICES;
+
+static int patch_opened = 0;		/* sample already loaded? */
+
+static int reverb_mode = 4;		/* reverb mode */
+static int chorus_mode = 2;		/* chorus mode */
+static short init_atten = AWE_DEFAULT_ATTENUATION; /* 12dB below */
+
+static int awe_present = FALSE;		/* awe device present? */
+static int awe_busy = FALSE;		/* awe device opened? */
+
+#define DEFAULT_DRUM_FLAGS	((1 << 9) | (1 << 25))
+#define IS_DRUM_CHANNEL(c)	(drum_flags & (1 << (c)))
+#define DRUM_CHANNEL_ON(c)	(drum_flags |= (1 << (c)))
+#define DRUM_CHANNEL_OFF(c)	(drum_flags &= ~(1 << (c)))
+static unsigned int drum_flags = DEFAULT_DRUM_FLAGS; /* channel flags */
+
+static int playing_mode = AWE_PLAY_INDIRECT;
+#define SINGLE_LAYER_MODE()	(playing_mode == AWE_PLAY_INDIRECT || playing_mode == AWE_PLAY_DIRECT)
+#define MULTI_LAYER_MODE()	(playing_mode == AWE_PLAY_MULTI || playing_mode == AWE_PLAY_MULTI2)
+
+static int current_alloc_time = 0;	/* voice allocation index for channel mode */
+
+static struct MiscModeDef {
+	int value;
+	int init_each_time;
+} misc_modes_default[AWE_MD_END] = {
+	{0,0}, {0,0}, /* <-- not used */
+	{AWE_VERSION_NUMBER, FALSE},
+	{TRUE, TRUE}, /* exclusive */
+	{TRUE, TRUE}, /* realpan */
+	{AWE_DEFAULT_BANK, TRUE}, /* gusbank */
+	{FALSE, TRUE}, /* keep effect */
+	{AWE_DEFAULT_ATTENUATION, FALSE}, /* zero_atten */
+	{FALSE, TRUE}, /* chn_prior */
+	{AWE_DEFAULT_MOD_SENSE, TRUE}, /* modwheel sense */
+	{AWE_DEFAULT_PRESET, TRUE}, /* def_preset */
+	{AWE_DEFAULT_BANK, TRUE}, /* def_bank */
+	{AWE_DEFAULT_DRUM, TRUE}, /* def_drum */
+	{FALSE, TRUE}, /* toggle_drum_bank */
+};
+
+static int misc_modes[AWE_MD_END];
+
+static int awe_bass_level = 5;
+static int awe_treble_level = 9;
+
+
+static struct synth_info awe_info = {
+	"AWE32 Synth",		/* name */
+	0,			/* device */
+	SYNTH_TYPE_SAMPLE,	/* synth_type */
+	SAMPLE_TYPE_AWE32,	/* synth_subtype */
+	0,			/* perc_mode (obsolete) */
+	AWE_MAX_VOICES,		/* nr_voices */
+	0,			/* nr_drums (obsolete) */
+	AWE_MAX_INFOS		/* instr_bank_size */
+};
+
+
+static struct voice_alloc_info *voice_alloc;	/* set at initialization */
+
+
+/*----------------------------------------------------------------
+ * function prototypes
+ *----------------------------------------------------------------*/
+
+#ifndef AWE_OBSOLETE_VOXWARE
+static int awe_check_port(void);
+static void awe_request_region(void);
+static void awe_release_region(void);
+#endif
+
+static void awe_reset_samples(void);
+/* emu8000 chip i/o access */
+static void awe_poke(unsigned short cmd, unsigned short port, unsigned short data);
+static void awe_poke_dw(unsigned short cmd, unsigned short port, unsigned int data);
+static unsigned short awe_peek(unsigned short cmd, unsigned short port);
+static unsigned int awe_peek_dw(unsigned short cmd, unsigned short port);
+static void awe_wait(unsigned short delay);
+
+/* initialize emu8000 chip */
+static void awe_initialize(void);
+
+/* set voice parameters */
+static void awe_init_misc_modes(int init_all);
+static void awe_init_voice_info(awe_voice_info *vp);
+static void awe_init_voice_parm(awe_voice_parm *pp);
+#ifdef AWE_HAS_GUS_COMPATIBILITY
+static int freq_to_note(int freq);
+static int calc_rate_offset(int Hz);
+/*static int calc_parm_delay(int msec);*/
+static int calc_parm_hold(int msec);
+static int calc_parm_attack(int msec);
+static int calc_parm_decay(int msec);
+static int calc_parm_search(int msec, short *table);
+#endif
+
+/* turn on/off note */
+static void awe_note_on(int voice);
+static void awe_note_off(int voice);
+static void awe_terminate(int voice);
+static void awe_exclusive_off(int voice);
+static void awe_note_off_all(int do_sustain);
+
+/* calculate voice parameters */
+typedef void (*fx_affect_func)(int voice, int forced);
+static void awe_set_pitch(int voice, int forced);
+static void awe_set_voice_pitch(int voice, int forced);
+static void awe_set_volume(int voice, int forced);
+static void awe_set_voice_vol(int voice, int forced);
+static void awe_set_pan(int voice, int forced);
+static void awe_fx_fmmod(int voice, int forced);
+static void awe_fx_tremfrq(int voice, int forced);
+static void awe_fx_fm2frq2(int voice, int forced);
+static void awe_fx_filterQ(int voice, int forced);
+static void awe_calc_pitch(int voice);
+#ifdef AWE_HAS_GUS_COMPATIBILITY
+static void awe_calc_pitch_from_freq(int voice, int freq);
+#endif
+static void awe_calc_volume(int voice);
+static void awe_voice_init(int voice, int init_all);
+static void awe_channel_init(int ch, int init_all);
+static void awe_fx_init(int ch);
+
+/* sequencer interface */
+static int awe_open(int dev, int mode);
+static void awe_close(int dev);
+static int awe_ioctl(int dev, unsigned int cmd, caddr_t arg);
+static int awe_kill_note(int dev, int voice, int note, int velocity);
+static int awe_start_note(int dev, int v, int note_num, int volume);
+static int awe_set_instr(int dev, int voice, int instr_no);
+static int awe_set_instr_2(int dev, int voice, int instr_no);
+static void awe_reset(int dev);
+static void awe_hw_control(int dev, unsigned char *event);
+static int awe_load_patch(int dev, int format, const char *addr,
+			  int offs, int count, int pmgr_flag);
+static void awe_aftertouch(int dev, int voice, int pressure);
+static void awe_controller(int dev, int voice, int ctrl_num, int value);
+static void awe_panning(int dev, int voice, int value);
+static void awe_volume_method(int dev, int mode);
+#ifndef AWE_NO_PATCHMGR
+static int awe_patchmgr(int dev, struct patmgr_info *rec);
+#endif
+static void awe_bender(int dev, int voice, int value);
+static int awe_alloc(int dev, int chn, int note, struct voice_alloc_info *alloc);
+static void awe_setup_voice(int dev, int voice, int chn);
+
+/* hardware controls */
+#ifdef AWE_HAS_GUS_COMPATIBILITY
+static void awe_hw_gus_control(int dev, int cmd, unsigned char *event);
+#endif
+static void awe_hw_awe_control(int dev, int cmd, unsigned char *event);
+static void awe_voice_change(int voice, fx_affect_func func);
+static void awe_sostenuto_on(int voice, int forced);
+static void awe_sustain_off(int voice, int forced);
+static void awe_terminate_and_init(int voice, int forced);
+
+/* voice search */
+static int awe_search_instr(int bank, int preset);
+static int awe_search_multi_voices(int rec, int note, int velocity, awe_voice_info **vlist);
+static void awe_alloc_multi_voices(int ch, int note, int velocity, int key);
+static void awe_alloc_one_voice(int voice, int note, int velocity);
+static int awe_clear_voice(void);
+
+/* load / remove patches */
+static int awe_open_patch(awe_patch_info *patch, const char *addr, int count);
+static int awe_close_patch(awe_patch_info *patch, const char *addr, int count);
+static int awe_unload_patch(awe_patch_info *patch, const char *addr, int count);
+static int awe_load_info(awe_patch_info *patch, const char *addr, int count);
+static int awe_load_data(awe_patch_info *patch, const char *addr, int count);
+static int awe_replace_data(awe_patch_info *patch, const char *addr, int count);
+static int awe_load_map(awe_patch_info *patch, const char *addr, int count);
+#ifdef AWE_HAS_GUS_COMPATIBILITY
+static int awe_load_guspatch(const char *addr, int offs, int size, int pmgr_flag);
+#endif
+static int check_patch_opened(int type, char *name);
+static int awe_write_wave_data(const char *addr, int offset, awe_sample_info *sp, int channels);
+static void add_sf_info(int rec);
+static void add_sf_sample(int rec);
+static void purge_old_list(int rec, int next);
+static void add_info_list(int rec);
+static void awe_remove_samples(int sf_id);
+static void rebuild_preset_list(void);
+static short awe_set_sample(awe_voice_info *vp);
+
+/* lowlevel functions */
+static void awe_init_audio(void);
+static void awe_init_dma(void);
+static void awe_init_array(void);
+static void awe_send_array(unsigned short *data);
+static void awe_tweak_voice(int voice);
+static void awe_tweak(void);
+static void awe_init_fm(void);
+static int awe_open_dram_for_write(int offset, int channels);
+static void awe_open_dram_for_check(void);
+static void awe_close_dram(void);
+static void awe_write_dram(unsigned short c);
+static int awe_detect_base(int addr);
+static int awe_detect(void);
+static int awe_check_dram(void);
+static int awe_load_chorus_fx(awe_patch_info *patch, const char *addr, int count);
+static void awe_set_chorus_mode(int mode);
+static int awe_load_reverb_fx(awe_patch_info *patch, const char *addr, int count);
+static void awe_set_reverb_mode(int mode);
+static void awe_equalizer(int bass, int treble);
+#ifdef CONFIG_AWE32_MIXER
+static int awe_mixer_ioctl(int dev, unsigned int cmd, caddr_t arg);
+#endif
+
+/* define macros for compatibility */
+#ifdef __FreeBSD__
+#  include <i386/isa/sound/awe_compat.h>
+#else
+#  include "awe_compat.h"
+#endif
+
+/*----------------------------------------------------------------
+ * synth operation table
+ *----------------------------------------------------------------*/
+
+static struct synth_operations awe_operations =
+{
+#ifdef AWE_OSS38
+	"EMU8K",
+#endif
+	&awe_info,
+	0,
+	SYNTH_TYPE_SAMPLE,
+	SAMPLE_TYPE_AWE32,
+	awe_open,
+	awe_close,
+	awe_ioctl,
+	awe_kill_note,
+	awe_start_note,
+	awe_set_instr_2,
+	awe_reset,
+	awe_hw_control,
+	awe_load_patch,
+	awe_aftertouch,
+	awe_controller,
+	awe_panning,
+	awe_volume_method,
+#ifndef AWE_NO_PATCHMGR
+	awe_patchmgr,
+#endif
+	awe_bender,
+	awe_alloc,
+	awe_setup_voice
+};
+
+#ifdef CONFIG_AWE32_MIXER
+static struct mixer_operations awe_mixer_operations = {
+#ifndef __FreeBSD__
+	"AWE32",
+#endif
+	"AWE32 Equalizer",
+	awe_mixer_ioctl,
+};
+#endif
+
+
+/*================================================================
+ * attach / unload interface
+ *================================================================*/
+
+#ifdef AWE_OBSOLETE_VOXWARE
+#define ATTACH_DECL	static
+#else
+#define ATTACH_DECL	/**/
+#endif
+
+ATTACH_DECL
+int attach_awe(void)
+{
+	/* check presence of AWE32 card */
+	if (! awe_detect()) {
+		printk("AWE32: not detected\n");
+		return 0;
+	}
+
+	/* check AWE32 ports are available */
+	if (awe_check_port()) {
+		printk("AWE32: I/O area already used.\n");
+		return 0;
+	}
+
+	/* set buffers to NULL */
+	voices = NULL;
+	channels = NULL;
+	sflists = NULL;
+	samples = NULL;
+	infos = NULL;
+
+	/* voice & channel info */
+	voices = (voice_info*)my_malloc(AWE_MAX_VOICES * sizeof(voice_info));
+	channels = (awe_chan_info*)my_malloc(AWE_MAX_CHANNELS * sizeof(awe_chan_info));
+
+	if (voices == NULL || channels == NULL) {
+		my_free(voices);
+		my_free(channels);
+		printk("AWE32: can't allocate sample tables\n");
+		return 0;
+	}
+
+	/* allocate sample tables */
+	INIT_TABLE(sflists, max_sfs, AWE_MAX_SF_LISTS, sf_list);
+	INIT_TABLE(samples, max_samples, AWE_MAX_SAMPLES, awe_sample_list);
+	INIT_TABLE(infos, max_infos, AWE_MAX_INFOS, awe_voice_list);
+
+	if (num_synths >= MAX_SYNTH_DEV)
+		printk("AWE32 Error: too many synthesizers\n");
+	else {
+		voice_alloc = &awe_operations.alloc;
+		voice_alloc->max_voice = awe_max_voices;
+		synth_devs[num_synths++] = &awe_operations;
+	}
+
+#ifdef CONFIG_AWE32_MIXER
+	if (num_mixers < MAX_MIXER_DEV) {
+		mixer_devs[num_mixers++] = &awe_mixer_operations;
+	}
+#endif
+
+	/* reserve I/O ports for awedrv */
+	awe_request_region();
+
+	/* clear all samples */
+	awe_reset_samples();
+
+	/* intialize AWE32 hardware */
+	awe_initialize();
+
+	sprintf(awe_info.name, "AWE32-%s (RAM%dk)",
+		AWEDRV_VERSION, awe_mem_size/1024);
+#ifdef __FreeBSD__
+	printk("awe0: <SoundBlaster EMU8000 MIDI (RAM%dk)>", awe_mem_size/1024);
+#elif defined(AWE_DEBUG_ON)
+	printk("%s\n", awe_info.name);
+#endif
+
+	/* set default values */
+	awe_init_misc_modes(TRUE);
+
+	/* set reverb & chorus modes */
+	awe_set_reverb_mode(reverb_mode);
+	awe_set_chorus_mode(chorus_mode);
+
+	awe_present = TRUE;
+
+	return 1;
+}
+
+
+#ifdef AWE_DYNAMIC_BUFFER
+static void free_tables(void)
+{
+	my_free(sflists);
+	sflists = NULL; max_sfs = 0;
+	my_free(samples);
+	samples = NULL; max_samples = 0;
+	my_free(infos);
+	infos = NULL; max_infos = 0;
+}
+#else
+#define free_buffers() /**/
+#endif
+
+
+ATTACH_DECL
+void unload_awe(void)
+{
+	if (awe_present) {
+		awe_reset_samples();
+		awe_release_region();
+		my_free(voices);
+		my_free(channels);
+		free_tables();
+		awe_present = FALSE;
+	}
+}
+
+
+/*----------------------------------------------------------------
+ * old type interface
+ *----------------------------------------------------------------*/
+
+#ifdef AWE_OBSOLETE_VOXWARE
+
+#ifdef __FreeBSD__
+long attach_awe_obsolete(long mem_start, struct address_info *hw_config)
+#else
+int attach_awe_obsolete(int mem_start, struct address_info *hw_config)
+#endif
+{
+	my_malloc_init(mem_start);
+	if (! attach_awe())
+		return 0;
+	return my_malloc_memptr();
+}
+
+int probe_awe_obsolete(struct address_info *hw_config)
+{
+	return 1;
+	/*return awe_detect();*/
+}
+
+#endif
+
+
+/*================================================================
+ * clear sample tables 
+ *================================================================*/
+
+static void
+awe_reset_samples(void)
+{
+	int i;
+
+	/* free all bank tables */
+	for (i = 0; i < AWE_MAX_PRESETS; i++)
+		preset_table[i] = -1;
+
+	free_tables();
+
+	current_sf_id = 0;
+	locked_sf_id = 0;
+	patch_opened = 0;
+}
+
+
+/*================================================================
+ * EMU register access
+ *================================================================*/
+
+/* select a given AWE32 pointer */
+static int awe_cur_cmd = -1;
+#define awe_set_cmd(cmd) \
+if (awe_cur_cmd != cmd) { OUTW(cmd, awe_base + 0x802); awe_cur_cmd = cmd; }
+#define awe_port(port)		(awe_base - 0x620 + port)
+
+/* write 16bit data */
+INLINE static void
+awe_poke(unsigned short cmd, unsigned short port, unsigned short data)
+{
+	awe_set_cmd(cmd);
+	OUTW(data, awe_port(port));
+}
+
+/* write 32bit data */
+INLINE static void
+awe_poke_dw(unsigned short cmd, unsigned short port, unsigned int data)
+{
+	awe_set_cmd(cmd);
+	OUTW(data, awe_port(port));		/* write lower 16 bits */
+	OUTW(data >> 16, awe_port(port)+2);	/* write higher 16 bits */
+}
+
+/* read 16bit data */
+INLINE static unsigned short
+awe_peek(unsigned short cmd, unsigned short port)
+{
+	unsigned short k;
+	awe_set_cmd(cmd);
+	k = inw(awe_port(port));
+	return k;
+}
+
+/* read 32bit data */
+INLINE static unsigned int
+awe_peek_dw(unsigned short cmd, unsigned short port)
+{
+	unsigned int k1, k2;
+	awe_set_cmd(cmd);
+	k1 = inw(awe_port(port));
+	k2 = inw(awe_port(port)+2);
+	k1 |= k2 << 16;
+	return k1;
+}
+
+/* wait delay number of AWE32 44100Hz clocks */
+static void
+awe_wait(unsigned short delay)
+{
+	unsigned short clock, target;
+	unsigned short port = awe_port(AWE_WC_Port);
+	int counter;
+  
+	/* sample counter */
+	awe_set_cmd(AWE_WC_Cmd);
+	clock = (unsigned short)inw(port);
+	target = clock + delay;
+	counter = 0;
+	if (target < clock) {
+		for (; (unsigned short)inw(port) > target; counter++)
+			if (counter > 65536)
+				break;
+	}
+	for (; (unsigned short)inw(port) < target; counter++)
+		if (counter > 65536)
+			break;
+}
+
+/* write a word data */
+INLINE static void
+awe_write_dram(unsigned short c)
+{
+	awe_poke(AWE_SMLD, c);
+}
+
+
+#ifndef AWE_OBSOLETE_VOXWARE
+
+/*================================================================
+ * port check / request
+ *  0x620-622, 0xA20-A22, 0xE20-E22
+ *================================================================*/
+
+static int
+awe_check_port(void)
+{
+	return (check_region(awe_port(Data0), 4) ||
+		check_region(awe_port(Data1), 4) ||
+		check_region(awe_port(Data3), 4));
+}
+
+static void
+awe_request_region(void)
+{
+	request_region(awe_port(Data0), 4, "sound driver (AWE32)");
+	request_region(awe_port(Data1), 4, "sound driver (AWE32)");
+	request_region(awe_port(Data3), 4, "sound driver (AWE32)");
+}
+
+static void
+awe_release_region(void)
+{
+	release_region(awe_port(Data0), 4);
+	release_region(awe_port(Data1), 4);
+	release_region(awe_port(Data3), 4);
+}
+
+#endif /* !AWE_OBSOLETE_VOXWARE */
+
+
+/*================================================================
+ * AWE32 initialization
+ *================================================================*/
+static void
+awe_initialize(void)
+{
+	DEBUG(0,printk("AWE32: initializing..\n"));
+
+	/* initialize hardware configuration */
+	awe_poke(AWE_HWCF1, 0x0059);
+	awe_poke(AWE_HWCF2, 0x0020);
+
+	/* disable audio; this seems to reduce a clicking noise a bit.. */
+	awe_poke(AWE_HWCF3, 0);
+
+	/* initialize audio channels */
+	awe_init_audio();
+
+	/* initialize DMA */
+	awe_init_dma();
+
+	/* initialize init array */
+	awe_init_array();
+
+	/* check DRAM memory size */
+	awe_mem_size = awe_check_dram();
+
+	/* initialize the FM section of the AWE32 */
+	awe_init_fm();
+
+	/* set up voice envelopes */
+	awe_tweak();
+
+	/* enable audio */
+	awe_poke(AWE_HWCF3, 0x0004);
+
+	/* set equalizer */
+	awe_equalizer(5, 9);
+}
+
+
+/*================================================================
+ * AWE32 voice parameters
+ *================================================================*/
+
+/* initialize voice_info record */
+static void
+awe_init_voice_info(awe_voice_info *vp)
+{
+	vp->sf_id = 0; /* normal mode */
+	vp->sample = 0;
+	vp->rate_offset = 0;
+
+	vp->start = 0;
+	vp->end = 0;
+	vp->loopstart = 0;
+	vp->loopend = 0;
+	vp->mode = 0;
+	vp->root = 60;
+	vp->tune = 0;
+	vp->low = 0;
+	vp->high = 127;
+	vp->vellow = 0;
+	vp->velhigh = 127;
+
+	vp->fixkey = -1;
+	vp->fixvel = -1;
+	vp->fixpan = -1;
+	vp->pan = -1;
+
+	vp->exclusiveClass = 0;
+	vp->amplitude = 127;
+	vp->attenuation = 0;
+	vp->scaleTuning = 100;
+
+	awe_init_voice_parm(&vp->parm);
+}
+
+/* initialize voice_parm record:
+ * Env1/2: delay=0, attack=0, hold=0, sustain=0, decay=0, release=0.
+ * Vibrato and Tremolo effects are zero.
+ * Cutoff is maximum.
+ * Chorus and Reverb effects are zero.
+ */
+static void
+awe_init_voice_parm(awe_voice_parm *pp)
+{
+	pp->moddelay = 0x8000;
+	pp->modatkhld = 0x7f7f;
+	pp->moddcysus = 0x7f7f;
+	pp->modrelease = 0x807f;
+	pp->modkeyhold = 0;
+	pp->modkeydecay = 0;
+
+	pp->voldelay = 0x8000;
+	pp->volatkhld = 0x7f7f;
+	pp->voldcysus = 0x7f7f;
+	pp->volrelease = 0x807f;
+	pp->volkeyhold = 0;
+	pp->volkeydecay = 0;
+
+	pp->lfo1delay = 0x8000;
+	pp->lfo2delay = 0x8000;
+	pp->pefe = 0;
+
+	pp->fmmod = 0;
+	pp->tremfrq = 0;
+	pp->fm2frq2 = 0;
+
+	pp->cutoff = 0xff;
+	pp->filterQ = 0;
+
+	pp->chorus = 0;
+	pp->reverb = 0;
+}	
+
+
+#ifdef AWE_HAS_GUS_COMPATIBILITY
+
+/* convert frequency mHz to abstract cents (= midi key * 100) */
+static int
+freq_to_note(int mHz)
+{
+	/* abscents = log(mHz/8176) / log(2) * 1200 */
+	unsigned int max_val = (unsigned int)0xffffffff / 10000;
+	int i, times;
+	unsigned int base;
+	unsigned int freq;
+	int note, tune;
+
+	if (mHz == 0)
+		return 0;
+	if (mHz < 0)
+		return 12799; /* maximum */
+
+	freq = mHz;
+	note = 0;
+	for (base = 8176 * 2; freq >= base; base *= 2) {
+		note += 12;
+		if (note >= 128) /* over maximum */
+			return 12799;
+	}
+	base /= 2;
+
+	/* to avoid overflow... */
+	times = 10000;
+	while (freq > max_val) {
+		max_val *= 10;
+		times /= 10;
+		base /= 10;
+	}
+
+	freq = freq * times / base;
+	for (i = 0; i < 12; i++) {
+		if (freq < semitone_tuning[i+1])
+			break;
+		note++;
+	}
+
+	tune = 0;
+	freq = freq * 10000 / semitone_tuning[i];
+	for (i = 0; i < 100; i++) {
+		if (freq < cent_tuning[i+1])
+			break;
+		tune++;
+	}
+
+	return note * 100 + tune;
+}
+
+
+/* convert Hz to AWE32 rate offset:
+ * sample pitch offset for the specified sample rate
+ * rate=44100 is no offset, each 4096 is 1 octave (twice).
+ * eg, when rate is 22050, this offset becomes -4096.
+ */
+static int
+calc_rate_offset(int Hz)
+{
+	/* offset = log(Hz / 44100) / log(2) * 4096 */
+	int freq, base, i;
+
+	/* maybe smaller than max (44100Hz) */
+	if (Hz <= 0 || Hz >= 44100) return 0;
+
+	base = 0;
+	for (freq = Hz * 2; freq < 44100; freq *= 2)
+		base++;
+	base *= 1200;
+
+	freq = 44100 * 10000 / (freq/2);
+	for (i = 0; i < 12; i++) {
+		if (freq < semitone_tuning[i+1])
+			break;
+		base += 100;
+	}
+	freq = freq * 10000 / semitone_tuning[i];
+	for (i = 0; i < 100; i++) {
+		if (freq < cent_tuning[i+1])
+			break;
+		base++;
+	}
+	return -base * 4096 / 1200;
+}
+
+
+/*----------------------------------------------------------------
+ * convert envelope time parameter to AWE32 raw parameter
+ *----------------------------------------------------------------*/
+
+/* attack & decay/release time table (msec) */
+static short attack_time_tbl[128] = {
+32767, 11878, 5939, 3959, 2969, 2375, 1979, 1696, 1484, 1319, 1187, 1079, 989, 913, 848, 791, 742,
+ 698, 659, 625, 593, 565, 539, 516, 494, 475, 456, 439, 424, 409, 395, 383, 371,
+ 359, 344, 330, 316, 302, 290, 277, 266, 255, 244, 233, 224, 214, 205, 196, 188,
+ 180, 173, 165, 158, 152, 145, 139, 133, 127, 122, 117, 112, 107, 103, 98, 94,
+ 90, 86, 83, 79, 76, 73, 69, 67, 64, 61, 58, 56, 54, 51, 49, 47,
+ 45, 43, 41, 39, 38, 36, 35, 33, 32, 30, 29, 28, 27, 25, 24, 23,
+ 22, 21, 20, 20, 19, 18, 17, 16, 16, 15, 14, 14, 13, 13, 12, 11,
+ 11, 10, 10, 10, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 0,
+};
+
+static short decay_time_tbl[128] = {
+32767, 32766, 4589, 4400, 4219, 4045, 3879, 3719, 3566, 3419, 3279, 3144, 3014, 2890, 2771, 2657,
+ 2548, 2443, 2343, 2246, 2154, 2065, 1980, 1899, 1820, 1746, 1674, 1605, 1539, 1475, 1415, 1356,
+ 1301, 1247, 1196, 1146, 1099, 1054, 1011, 969, 929, 891, 854, 819, 785, 753, 722, 692,
+ 664, 636, 610, 585, 561, 538, 516, 494, 474, 455, 436, 418, 401, 384, 368, 353,
+ 339, 325, 311, 298, 286, 274, 263, 252, 242, 232, 222, 213, 204, 196, 188, 180,
+ 173, 166, 159, 152, 146, 140, 134, 129, 123, 118, 113, 109, 104, 100, 96, 92,
+ 88, 84, 81, 77, 74, 71, 68, 65, 63, 60, 58, 55, 53, 51, 49, 47,
+ 45, 43, 41, 39, 38, 36, 35, 33, 32, 30, 29, 28, 27, 26, 25, 24,
+};
+
+/*
+static int
+calc_parm_delay(int msec)
+{
+	return (0x8000 - msec * 1000 / 725);
+}
+*/
+
+/* delay time = 0x8000 - msec/92 */
+static int
+calc_parm_hold(int msec)
+{
+	int val = (0x7f * 92 - msec) / 92;
+	if (val < 1) val = 1;
+	if (val > 127) val = 127;
+	return val;
+}
+
+/* attack time: search from time table */
+static int
+calc_parm_attack(int msec)
+{
+	return calc_parm_search(msec, attack_time_tbl);
+}
+
+/* decay/release time: search from time table */
+static int
+calc_parm_decay(int msec)
+{
+	return calc_parm_search(msec, decay_time_tbl);
+}
+
+/* search an index for specified time from given time table */
+static int
+calc_parm_search(int msec, short *table)
+{
+	int left = 1, right = 127, mid;
+	while (left < right) {
+		mid = (left + right) / 2;
+		if (msec < (int)table[mid])
+			left = mid + 1;
+		else
+			right = mid;
+	}
+	return left;
+}
+#endif /* AWE_HAS_GUS_COMPATIBILITY */
+
+
+/*================================================================
+ * effects table
+ *================================================================*/
+
+/* set an effect value */
+#define FX_FLAG_OFF	0
+#define FX_FLAG_SET	1
+#define FX_FLAG_ADD	2
+
+#define FX_SET(rec,type,value) \
+	((rec)->flags[type] = FX_FLAG_SET, (rec)->val[type] = (value))
+#define FX_ADD(rec,type,value) \
+	((rec)->flags[type] = FX_FLAG_ADD, (rec)->val[type] = (value))
+#define FX_UNSET(rec,type) \
+	((rec)->flags[type] = FX_FLAG_OFF, (rec)->val[type] = 0)
+
+/* check the effect value is set */
+#define FX_ON(rec,type)	((rec)->flags[type])
+
+#define PARM_BYTE	0
+#define PARM_WORD	1
+
+static struct PARM_DEFS {
+	int type;	/* byte or word */
+	int low, high;	/* value range */
+	fx_affect_func realtime;	/* realtime paramater change */
+} parm_defs[] = {
+	{PARM_WORD, 0, 0x8000, NULL},	/* env1 delay */
+	{PARM_BYTE, 1, 0x7f, NULL},	/* env1 attack */
+	{PARM_BYTE, 0, 0x7e, NULL},	/* env1 hold */
+	{PARM_BYTE, 1, 0x7f, NULL},	/* env1 decay */
+	{PARM_BYTE, 1, 0x7f, NULL},	/* env1 release */
+	{PARM_BYTE, 0, 0x7f, NULL},	/* env1 sustain */
+	{PARM_BYTE, 0, 0xff, NULL},	/* env1 pitch */
+	{PARM_BYTE, 0, 0xff, NULL},	/* env1 cutoff */
+
+	{PARM_WORD, 0, 0x8000, NULL},	/* env2 delay */
+	{PARM_BYTE, 1, 0x7f, NULL},	/* env2 attack */
+	{PARM_BYTE, 0, 0x7e, NULL},	/* env2 hold */
+	{PARM_BYTE, 1, 0x7f, NULL},	/* env2 decay */
+	{PARM_BYTE, 1, 0x7f, NULL},	/* env2 release */
+	{PARM_BYTE, 0, 0x7f, NULL},	/* env2 sustain */
+
+	{PARM_WORD, 0, 0x8000, NULL},	/* lfo1 delay */
+	{PARM_BYTE, 0, 0xff, awe_fx_tremfrq},	/* lfo1 freq */
+	{PARM_BYTE, 0, 0x7f, awe_fx_tremfrq},	/* lfo1 volume (positive only)*/
+	{PARM_BYTE, 0, 0x7f, awe_fx_fmmod},	/* lfo1 pitch (positive only)*/
+	{PARM_BYTE, 0, 0xff, awe_fx_fmmod},	/* lfo1 cutoff (positive only)*/
+
+	{PARM_WORD, 0, 0x8000, NULL},	/* lfo2 delay */
+	{PARM_BYTE, 0, 0xff, awe_fx_fm2frq2},	/* lfo2 freq */
+	{PARM_BYTE, 0, 0x7f, awe_fx_fm2frq2},	/* lfo2 pitch (positive only)*/
+
+	{PARM_WORD, 0, 0xffff, awe_set_voice_pitch},	/* initial pitch */
+	{PARM_BYTE, 0, 0xff, NULL},	/* chorus */
+	{PARM_BYTE, 0, 0xff, NULL},	/* reverb */
+	{PARM_BYTE, 0, 0xff, awe_set_volume},	/* initial cutoff */
+	{PARM_BYTE, 0, 15, awe_fx_filterQ},	/* initial resonance */
+
+	{PARM_WORD, 0, 0xffff, NULL},	/* sample start */
+	{PARM_WORD, 0, 0xffff, NULL},	/* loop start */
+	{PARM_WORD, 0, 0xffff, NULL},	/* loop end */
+	{PARM_WORD, 0, 0xffff, NULL},	/* coarse sample start */
+	{PARM_WORD, 0, 0xffff, NULL},	/* coarse loop start */
+	{PARM_WORD, 0, 0xffff, NULL},	/* coarse loop end */
+	{PARM_BYTE, 0, 0xff, awe_set_volume},	/* initial attenuation */
+};
+
+
+static unsigned char
+FX_BYTE(FX_Rec *rec, FX_Rec *lay, int type, unsigned char value)
+{
+	int effect = 0;
+	int on = 0;
+	if (lay && (on = FX_ON(lay, type)) != 0)
+		effect = lay->val[type];
+	if (!on && (on = FX_ON(rec, type)) != 0)
+		effect = rec->val[type];
+	if (on == FX_FLAG_ADD)
+		effect += (int)value;
+	if (on) {
+		if (effect < parm_defs[type].low)
+			effect = parm_defs[type].low;
+		else if (effect > parm_defs[type].high)
+			effect = parm_defs[type].high;
+		return (unsigned char)effect;
+	}
+	return value;
+}
+
+/* get word effect value */
+static unsigned short
+FX_WORD(FX_Rec *rec, FX_Rec *lay, int type, unsigned short value)
+{
+	int effect = 0;
+	int on = 0;
+	if (lay && (on = FX_ON(lay, type)) != 0)
+		effect = lay->val[type];
+	if (!on && (on = FX_ON(rec, type)) != 0)
+		effect = rec->val[type];
+	if (on == FX_FLAG_ADD)
+		effect += (int)value;
+	if (on) {
+		if (effect < parm_defs[type].low)
+			effect = parm_defs[type].low;
+		else if (effect > parm_defs[type].high)
+			effect = parm_defs[type].high;
+		return (unsigned short)effect;
+	}
+	return value;
+}
+
+/* get word (upper=type1/lower=type2) effect value */
+static unsigned short
+FX_COMB(FX_Rec *rec, FX_Rec *lay, int type1, int type2, unsigned short value)
+{
+	unsigned short tmp;
+	tmp = FX_BYTE(rec, lay, type1, (unsigned char)(value >> 8));
+	tmp <<= 8;
+	tmp |= FX_BYTE(rec, lay, type2, (unsigned char)(value & 0xff));
+	return tmp;
+}
+
+/* address offset */
+static int
+FX_OFFSET(FX_Rec *rec, FX_Rec *lay, int lo, int hi, int mode)
+{
+	int addr = 0;
+	if (lay && FX_ON(lay, hi))
+		addr = (short)lay->val[hi];
+	else if (FX_ON(rec, hi))
+		addr = (short)rec->val[hi];
+	addr = addr << 15;
+	if (lay && FX_ON(lay, lo))
+		addr += (short)lay->val[lo];
+	else if (FX_ON(rec, lo))
+		addr += (short)rec->val[lo];
+	if (!(mode & AWE_SAMPLE_8BITS))
+		addr /= 2;
+	return addr;
+}
+
+
+/*================================================================
+ * turn on/off sample
+ *================================================================*/
+
+static void
+awe_note_on(int voice)
+{
+	unsigned int temp;
+	int addr;
+	awe_voice_info *vp;
+	FX_Rec *fx = &voices[voice].cinfo->fx;
+	FX_Rec *fx_lay = NULL;
+	if (voices[voice].layer < MAX_LAYERS)
+		fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
+
+	/* A voice sample must assigned before calling */
+	if ((vp = voices[voice].sample) == NULL || vp->index < 0)
+		return;
+
+	/* channel to be silent and idle */
+	awe_poke(AWE_DCYSUSV(voice), 0x0080);
+	awe_poke(AWE_VTFT(voice), 0);
+	awe_poke(AWE_CVCF(voice), 0);
+	awe_poke(AWE_PTRX(voice), 0);
+	awe_poke(AWE_CPF(voice), 0);
+
+	/* modulation & volume envelope */
+	awe_poke(AWE_ENVVAL(voice),
+		 FX_WORD(fx, fx_lay, AWE_FX_ENV1_DELAY, vp->parm.moddelay));
+	awe_poke(AWE_ATKHLD(voice),
+		 FX_COMB(fx, fx_lay, AWE_FX_ENV1_HOLD, AWE_FX_ENV1_ATTACK,
+			 vp->parm.modatkhld));
+	awe_poke(AWE_DCYSUS(voice),
+		 FX_COMB(fx, fx_lay, AWE_FX_ENV1_SUSTAIN, AWE_FX_ENV1_DECAY,
+			  vp->parm.moddcysus));
+	awe_poke(AWE_ENVVOL(voice),
+		 FX_WORD(fx, fx_lay, AWE_FX_ENV2_DELAY, vp->parm.voldelay));
+	awe_poke(AWE_ATKHLDV(voice),
+		 FX_COMB(fx, fx_lay, AWE_FX_ENV2_HOLD, AWE_FX_ENV2_ATTACK,
+			 vp->parm.volatkhld));
+	/* decay/sustain parameter for volume envelope must be set at last */
+
+	/* pitch offset */
+	awe_set_pitch(voice, TRUE);
+
+	/* cutoff and volume */
+	awe_set_volume(voice, TRUE);
+
+	/* modulation envelope heights */
+	awe_poke(AWE_PEFE(voice),
+		 FX_COMB(fx, fx_lay, AWE_FX_ENV1_PITCH, AWE_FX_ENV1_CUTOFF,
+			 vp->parm.pefe));
+
+	/* lfo1/2 delay */
+	awe_poke(AWE_LFO1VAL(voice),
+		 FX_WORD(fx, fx_lay, AWE_FX_LFO1_DELAY, vp->parm.lfo1delay));
+	awe_poke(AWE_LFO2VAL(voice),
+		 FX_WORD(fx, fx_lay, AWE_FX_LFO2_DELAY, vp->parm.lfo2delay));
+
+	/* lfo1 pitch & cutoff shift */
+	awe_fx_fmmod(voice, TRUE);
+	/* lfo1 volume & freq */
+	awe_fx_tremfrq(voice, TRUE);
+	/* lfo2 pitch & freq */
+	awe_fx_fm2frq2(voice, TRUE);
+	/* pan & loop start */
+	awe_set_pan(voice, TRUE);
+
+	/* chorus & loop end (chorus 8bit, MSB) */
+	addr = vp->loopend - 1;
+	addr += FX_OFFSET(fx, fx_lay, AWE_FX_LOOP_END,
+			  AWE_FX_COARSE_LOOP_END, vp->mode);
+	temp = FX_BYTE(fx, fx_lay, AWE_FX_CHORUS, vp->parm.chorus);
+	temp = (temp <<24) | (unsigned int)addr;
+	awe_poke_dw(AWE_CSL(voice), temp);
+	DEBUG(4,printk("AWE32: [-- loopend=%x/%x]\n", vp->loopend, addr));
+
+	/* Q & current address (Q 4bit value, MSB) */
+	addr = vp->start - 1;
+	addr += FX_OFFSET(fx, fx_lay, AWE_FX_SAMPLE_START,
+			  AWE_FX_COARSE_SAMPLE_START, vp->mode);
+	temp = FX_BYTE(fx, fx_lay, AWE_FX_FILTERQ, vp->parm.filterQ);
+	temp = (temp<<28) | (unsigned int)addr;
+	awe_poke_dw(AWE_CCCA(voice), temp);
+	DEBUG(4,printk("AWE32: [-- startaddr=%x/%x]\n", vp->start, addr));
+
+	/* reset volume */
+	awe_poke_dw(AWE_VTFT(voice), 0x0000FFFF);
+	awe_poke_dw(AWE_CVCF(voice), 0x0000FFFF);
+
+	/* turn on envelope */
+	awe_poke(AWE_DCYSUSV(voice),
+		 FX_COMB(fx, fx_lay, AWE_FX_ENV2_SUSTAIN, AWE_FX_ENV2_DECAY,
+			  vp->parm.voldcysus));
+	/* set reverb */
+	temp = FX_BYTE(fx, fx_lay, AWE_FX_REVERB, vp->parm.reverb);
+	temp = (awe_peek_dw(AWE_PTRX(voice)) & 0xffff0000) | (temp<<8);
+	awe_poke_dw(AWE_PTRX(voice), temp);
+	awe_poke_dw(AWE_CPF(voice), 0x40000000);
+
+	voices[voice].state = AWE_ST_ON;
+
+	/* clear voice position for the next note on this channel */
+	if (SINGLE_LAYER_MODE()) {
+		FX_UNSET(fx, AWE_FX_SAMPLE_START);
+		FX_UNSET(fx, AWE_FX_COARSE_SAMPLE_START);
+	}
+}
+
+
+/* turn off the voice */
+static void
+awe_note_off(int voice)
+{
+	awe_voice_info *vp;
+	unsigned short tmp;
+	FX_Rec *fx = &voices[voice].cinfo->fx;
+	FX_Rec *fx_lay = NULL;
+	if (voices[voice].layer < MAX_LAYERS)
+		fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
+
+	if ((vp = voices[voice].sample) == NULL) {
+		voices[voice].state = AWE_ST_OFF;
+		return;
+	}
+
+	tmp = 0x8000 | FX_BYTE(fx, fx_lay, AWE_FX_ENV1_RELEASE,
+			       (unsigned char)vp->parm.modrelease);
+	awe_poke(AWE_DCYSUS(voice), tmp);
+	tmp = 0x8000 | FX_BYTE(fx, fx_lay, AWE_FX_ENV2_RELEASE,
+			       (unsigned char)vp->parm.volrelease);
+	awe_poke(AWE_DCYSUSV(voice), tmp);
+	voices[voice].state = AWE_ST_RELEASED;
+}
+
+/* force to terminate the voice (no releasing echo) */
+static void
+awe_terminate(int voice)
+{
+	awe_poke(AWE_DCYSUSV(voice), 0x807F);
+	awe_tweak_voice(voice);
+	voices[voice].state = AWE_ST_OFF;
+}
+
+/* turn off other voices with the same exclusive class (for drums) */
+static void
+awe_exclusive_off(int voice)
+{
+	int i, exclass;
+
+	if (voices[voice].sample == NULL)
+		return;
+	if ((exclass = voices[voice].sample->exclusiveClass) == 0)
+		return;	/* not exclusive */
+
+	/* turn off voices with the same class */
+	for (i = 0; i < awe_max_voices; i++) {
+		if (i != voice && IS_PLAYING(i) &&
+		    voices[i].sample && voices[i].ch == voices[voice].ch &&
+		    voices[i].sample->exclusiveClass == exclass) {
+			DEBUG(4,printk("AWE32: [exoff(%d)]\n", i));
+			awe_terminate(i);
+			awe_voice_init(i, TRUE);
+		}
+	}
+}
+
+
+/*================================================================
+ * change the parameters of an audible voice
+ *================================================================*/
+
+/* change pitch */
+static void
+awe_set_pitch(int voice, int forced)
+{
+	if (IS_NO_EFFECT(voice) && !forced) return;
+	awe_poke(AWE_IP(voice), voices[voice].apitch);
+	DEBUG(3,printk("AWE32: [-- pitch=%x]\n", voices[voice].apitch));
+}
+
+/* calculate & change pitch */
+static void
+awe_set_voice_pitch(int voice, int forced)
+{
+	awe_calc_pitch(voice);
+	awe_set_pitch(voice, forced);
+}
+
+/* change volume & cutoff */
+static void
+awe_set_volume(int voice, int forced)
+{
+	awe_voice_info *vp;
+	unsigned short tmp2;
+	FX_Rec *fx = &voices[voice].cinfo->fx;
+	FX_Rec *fx_lay = NULL;
+	if (voices[voice].layer < MAX_LAYERS)
+		fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
+
+	if (!IS_PLAYING(voice) && !forced) return;
+	if ((vp = voices[voice].sample) == NULL || vp->index < 0)
+		return;
+
+	tmp2 = FX_BYTE(fx, fx_lay, AWE_FX_CUTOFF, vp->parm.cutoff);
+	tmp2 = (tmp2 << 8);
+	tmp2 |= FX_BYTE(fx, fx_lay, AWE_FX_ATTEN,
+			(unsigned char)voices[voice].avol);
+	awe_poke(AWE_IFATN(voice), tmp2);
+}
+
+/* calculate & change volume */
+static void
+awe_set_voice_vol(int voice, int forced)
+{
+	if (IS_EMPTY(voice))
+		return;
+	awe_calc_volume(voice);
+	awe_set_volume(voice, forced);
+}
+
+
+/* change pan; this could make a click noise.. */
+static void
+awe_set_pan(int voice, int forced)
+{
+	unsigned int temp;
+	int addr;
+	awe_voice_info *vp;
+	FX_Rec *fx = &voices[voice].cinfo->fx;
+	FX_Rec *fx_lay = NULL;
+	if (voices[voice].layer < MAX_LAYERS)
+		fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
+
+	if (IS_NO_EFFECT(voice) && !forced) return;
+	if ((vp = voices[voice].sample) == NULL || vp->index < 0)
+		return;
+
+	/* pan & loop start (pan 8bit, MSB, 0:right, 0xff:left) */
+	if (vp->fixpan > 0)	/* 0-127 */
+		temp = 255 - (int)vp->fixpan * 2;
+	else {
+		int pos = 0;
+		if (vp->pan >= 0) /* 0-127 */
+			pos = (int)vp->pan * 2 - 128;
+		pos += voices[voice].cinfo->panning; /* -128 - 127 */
+		pos = 127 - pos;
+		if (pos < 0)
+			temp = 0;
+		else if (pos > 255)
+			temp = 255;
+		else
+			temp = pos;
+	}
+	if (forced || temp != voices[voice].apan) {
+		addr = vp->loopstart - 1;
+		addr += FX_OFFSET(fx, fx_lay, AWE_FX_LOOP_START,
+				  AWE_FX_COARSE_LOOP_START, vp->mode);
+		temp = (temp<<24) | (unsigned int)addr;
+		awe_poke_dw(AWE_PSST(voice), temp);
+		voices[voice].apan = temp;
+		DEBUG(4,printk("AWE32: [-- loopstart=%x/%x]\n", vp->loopstart, addr));
+	}
+}
+
+/* effects change during playing */
+static void
+awe_fx_fmmod(int voice, int forced)
+{
+	awe_voice_info *vp;
+	FX_Rec *fx = &voices[voice].cinfo->fx;
+	FX_Rec *fx_lay = NULL;
+	if (voices[voice].layer < MAX_LAYERS)
+		fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
+
+	if (IS_NO_EFFECT(voice) && !forced) return;
+	if ((vp = voices[voice].sample) == NULL || vp->index < 0)
+		return;
+	awe_poke(AWE_FMMOD(voice),
+		 FX_COMB(fx, fx_lay, AWE_FX_LFO1_PITCH, AWE_FX_LFO1_CUTOFF,
+			 vp->parm.fmmod));
+}
+
+/* set tremolo (lfo1) volume & frequency */
+static void
+awe_fx_tremfrq(int voice, int forced)
+{
+	awe_voice_info *vp;
+	FX_Rec *fx = &voices[voice].cinfo->fx;
+	FX_Rec *fx_lay = NULL;
+	if (voices[voice].layer < MAX_LAYERS)
+		fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
+
+	if (IS_NO_EFFECT(voice) && !forced) return;
+	if ((vp = voices[voice].sample) == NULL || vp->index < 0)
+		return;
+	awe_poke(AWE_TREMFRQ(voice),
+		 FX_COMB(fx, fx_lay, AWE_FX_LFO1_VOLUME, AWE_FX_LFO1_FREQ,
+			 vp->parm.tremfrq));
+}
+
+/* set lfo2 pitch & frequency */
+static void
+awe_fx_fm2frq2(int voice, int forced)
+{
+	awe_voice_info *vp;
+	FX_Rec *fx = &voices[voice].cinfo->fx;
+	FX_Rec *fx_lay = NULL;
+	if (voices[voice].layer < MAX_LAYERS)
+		fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
+
+	if (IS_NO_EFFECT(voice) && !forced) return;
+	if ((vp = voices[voice].sample) == NULL || vp->index < 0)
+		return;
+	awe_poke(AWE_FM2FRQ2(voice),
+		 FX_COMB(fx, fx_lay, AWE_FX_LFO2_PITCH, AWE_FX_LFO2_FREQ,
+			 vp->parm.fm2frq2));
+}
+
+
+/* Q & current address (Q 4bit value, MSB) */
+static void
+awe_fx_filterQ(int voice, int forced)
+{
+	unsigned int addr;
+	awe_voice_info *vp;
+	FX_Rec *fx = &voices[voice].cinfo->fx;
+	FX_Rec *fx_lay = NULL;
+	if (voices[voice].layer < MAX_LAYERS)
+		fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
+
+	if (IS_NO_EFFECT(voice) && !forced) return;
+	if ((vp = voices[voice].sample) == NULL || vp->index < 0)
+		return;
+
+	addr = awe_peek_dw(AWE_CCCA(voice)) & 0xffffff;
+	addr |= (FX_BYTE(fx, fx_lay, AWE_FX_FILTERQ, vp->parm.filterQ) << 28);
+	awe_poke_dw(AWE_CCCA(voice), addr);
+}
+
+/*================================================================
+ * calculate pitch offset
+ *----------------------------------------------------------------
+ * 0xE000 is no pitch offset at 44100Hz sample.
+ * Every 4096 is one octave.
+ *================================================================*/
+
+static void
+awe_calc_pitch(int voice)
+{
+	voice_info *vp = &voices[voice];
+	awe_voice_info *ap;
+	awe_chan_info *cp = voices[voice].cinfo;
+	int offset;
+
+	/* search voice information */
+	if ((ap = vp->sample) == NULL)
+			return;
+	if (ap->index < 0) {
+		DEBUG(3,printk("AWE32: set sample (%d)\n", ap->sample));
+		if (awe_set_sample(ap) < 0)
+			return;
+	}
+
+	/* calculate offset */
+	if (ap->fixkey >= 0) {
+		DEBUG(3,printk("AWE32: p-> fixkey(%d) tune(%d)\n", ap->fixkey, ap->tune));
+		offset = (ap->fixkey - ap->root) * 4096 / 12;
+	} else {
+		DEBUG(3,printk("AWE32: p(%d)-> root(%d) tune(%d)\n", vp->note, ap->root, ap->tune));
+		offset = (vp->note - ap->root) * 4096 / 12;
+		DEBUG(4,printk("AWE32: p-> ofs=%d\n", offset));
+	}
+	offset = (offset * ap->scaleTuning) / 100;
+	DEBUG(4,printk("AWE32: p-> scale* ofs=%d\n", offset));
+	offset += ap->tune * 4096 / 1200;
+	DEBUG(4,printk("AWE32: p-> tune+ ofs=%d\n", offset));
+	if (cp->bender != 0) {
+		DEBUG(3,printk("AWE32: p-> bend(%d) %d\n", voice, cp->bender));
+		/* (819200: 1 semitone) ==> (4096: 12 semitones) */
+		offset += cp->bender * cp->bender_range / 2400;
+	}
+
+	/* add initial pitch correction */
+	if (FX_ON(&cp->fx_layer[vp->layer], AWE_FX_INIT_PITCH))
+		offset += cp->fx_layer[vp->layer].val[AWE_FX_INIT_PITCH];
+	else if (FX_ON(&cp->fx, AWE_FX_INIT_PITCH))
+		offset += cp->fx.val[AWE_FX_INIT_PITCH];
+
+	/* 0xe000: root pitch */
+	vp->apitch = 0xe000 + ap->rate_offset + offset;
+	DEBUG(4,printk("AWE32: p-> sum aofs=%x, rate_ofs=%d\n", vp->apitch, ap->rate_offset));
+	if (vp->apitch > 0xffff)
+		vp->apitch = 0xffff;
+	if (vp->apitch < 0)
+		vp->apitch = 0;
+}
+
+
+#ifdef AWE_HAS_GUS_COMPATIBILITY
+/* calculate MIDI key and semitone from the specified frequency */
+static void
+awe_calc_pitch_from_freq(int voice, int freq)
+{
+	voice_info *vp = &voices[voice];
+	awe_voice_info *ap;
+	FX_Rec *fx = &voices[voice].cinfo->fx;
+	FX_Rec *fx_lay = NULL;
+	int offset;
+	int note;
+
+	if (voices[voice].layer < MAX_LAYERS)
+		fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
+
+	/* search voice information */
+	if ((ap = vp->sample) == NULL)
+		return;
+	if (ap->index < 0) {
+		DEBUG(3,printk("AWE32: set sample (%d)\n", ap->sample));
+		if (awe_set_sample(ap) < 0)
+			return;
+	}
+	note = freq_to_note(freq);
+	offset = (note - ap->root * 100 + ap->tune) * 4096 / 1200;
+	offset = (offset * ap->scaleTuning) / 100;
+	if (fx_lay && FX_ON(fx_lay, AWE_FX_INIT_PITCH))
+		offset += fx_lay->val[AWE_FX_INIT_PITCH];
+	else if (FX_ON(fx, AWE_FX_INIT_PITCH))
+		offset += fx->val[AWE_FX_INIT_PITCH];
+	vp->apitch = 0xe000 + ap->rate_offset + offset;
+	if (vp->apitch > 0xffff)
+		vp->apitch = 0xffff;
+	if (vp->apitch < 0)
+		vp->apitch = 0;
+}
+#endif /* AWE_HAS_GUS_COMPATIBILITY */
+
+
+/*================================================================
+ * calculate volume attenuation
+ *----------------------------------------------------------------
+ * Voice volume is controlled by volume attenuation parameter.
+ * So volume becomes maximum when avol is 0 (no attenuation), and
+ * minimum when 255 (-96dB or silence).
+ *================================================================*/
+
+static int vol_table[128] = {
+	255,111,95,86,79,74,70,66,63,61,58,56,54,52,50,49,
+	47,46,45,43,42,41,40,39,38,37,36,35,34,34,33,32,
+	31,31,30,29,29,28,27,27,26,26,25,24,24,23,23,22,
+	22,21,21,21,20,20,19,19,18,18,18,17,17,16,16,16,
+	15,15,15,14,14,14,13,13,13,12,12,12,11,11,11,10,
+	10,10,10,9,9,9,8,8,8,8,7,7,7,7,6,6,
+	6,6,5,5,5,5,5,4,4,4,4,3,3,3,3,3,
+	2,2,2,2,2,1,1,1,1,1,0,0,0,0,0,0,
+};
+
+static void
+awe_calc_volume(int voice)
+{
+	voice_info *vp = &voices[voice];
+	awe_voice_info *ap;
+	awe_chan_info *cp = voices[voice].cinfo;
+	int vol;
+
+	/* search voice information */
+	if ((ap = vp->sample) == NULL)
+		return;
+
+	ap = vp->sample;
+	if (ap->index < 0) {
+		DEBUG(3,printk("AWE32: set sample (%d)\n", ap->sample));
+		if (awe_set_sample(ap) < 0)
+			return;
+	}
+	
+	/* 0 - 127 */
+	vol = (vp->velocity * cp->main_vol * cp->expression_vol) / (127*127);
+	vol = vol * ap->amplitude / 127;
+
+	if (vol < 0) vol = 0;
+	if (vol > 127) vol = 127;
+
+	/* calc to attenuation */
+	vol = vol_table[vol];
+	vol = vol + (int)ap->attenuation + init_atten;
+	if (vol > 255) vol = 255;
+
+	vp->avol = vol;
+	DEBUG(3,printk("AWE32: [-- voice(%d) vol=%x]\n", voice, vol));
+}
+
+
+/* set sostenuto on */
+static void awe_sostenuto_on(int voice, int forced)
+{
+	if (IS_NO_EFFECT(voice) && !forced) return;
+	voices[voice].sostenuto = 127;
+}
+
+
+/* drop sustain */
+static void awe_sustain_off(int voice, int forced)
+{
+	if (voices[voice].state == AWE_ST_SUSTAINED) {
+		awe_note_off(voice);
+		awe_fx_init(voices[voice].ch);
+		awe_voice_init(voice, FALSE);
+	}
+}
+
+
+/* terminate and initialize voice */
+static void awe_terminate_and_init(int voice, int forced)
+{
+	awe_terminate(voice);
+	awe_fx_init(voices[voice].ch);
+	awe_voice_init(voice, TRUE);
+}
+
+
+/*================================================================
+ * synth operation routines
+ *================================================================*/
+
+#define AWE_VOICE_KEY(v)	(0x8000 | (v))
+#define AWE_CHAN_KEY(c,n)	(((c) << 8) | ((n) + 1))
+#define KEY_CHAN_MATCH(key,c)	(((key) >> 8) == (c))
+
+/* initialize the voice */
+static void
+awe_voice_init(int voice, int init_all)
+{
+	voice_info *vp = &voices[voice];
+
+	/* reset voice search key */
+	if (playing_mode == AWE_PLAY_DIRECT)
+		vp->key = AWE_VOICE_KEY(voice);
+	else
+		vp->key = 0;
+
+	/* clear voice mapping */
+	voice_alloc->map[voice] = 0;
+
+	/* touch the timing flag */
+	vp->time = current_alloc_time;
+
+	/* initialize other parameters if necessary */
+	if (init_all) {
+		vp->note = -1;
+		vp->velocity = 0;
+		vp->sostenuto = 0;
+
+		vp->sample = NULL;
+		vp->cinfo = &channels[voice];
+		vp->ch = voice;
+		vp->state = AWE_ST_OFF;
+
+		/* emu8000 parameters */
+		vp->apitch = 0;
+		vp->avol = 255;
+		vp->apan = -1;
+	}
+}
+
+/* clear effects */
+static void awe_fx_init(int ch)
+{
+	if (SINGLE_LAYER_MODE() && !misc_modes[AWE_MD_KEEP_EFFECT]) {
+		BZERO(&channels[ch].fx, sizeof(channels[ch].fx));
+		BZERO(&channels[ch].fx_layer, sizeof(&channels[ch].fx_layer));
+	}
+}
+
+/* initialize channel info */
+static void awe_channel_init(int ch, int init_all)
+{
+	awe_chan_info *cp = &channels[ch];
+	cp->channel = ch;
+	if (init_all) {
+		cp->panning = 0; /* zero center */
+		cp->bender_range = 200; /* sense * 100 */
+		cp->main_vol = 127;
+		if (MULTI_LAYER_MODE() && IS_DRUM_CHANNEL(ch)) {
+			cp->instr = misc_modes[AWE_MD_DEF_DRUM];
+			cp->bank = AWE_DRUM_BANK;
+		} else {
+			cp->instr = misc_modes[AWE_MD_DEF_PRESET];
+			cp->bank = misc_modes[AWE_MD_DEF_BANK];
+		}
+		cp->vrec = -1;
+		cp->def_vrec = -1;
+	}
+
+	cp->bender = 0; /* zero tune skew */
+	cp->expression_vol = 127;
+	cp->chan_press = 0;
+	cp->sustained = 0;
+
+	if (! misc_modes[AWE_MD_KEEP_EFFECT]) {
+		BZERO(&cp->fx, sizeof(cp->fx));
+		BZERO(&cp->fx_layer, sizeof(cp->fx_layer));
+	}
+}
+
+
+/* change the voice parameters; voice = channel */
+static void awe_voice_change(int voice, fx_affect_func func)
+{
+	int i; 
+	switch (playing_mode) {
+	case AWE_PLAY_DIRECT:
+		func(voice, FALSE);
+		break;
+	case AWE_PLAY_INDIRECT:
+		for (i = 0; i < awe_max_voices; i++)
+			if (voices[i].key == AWE_VOICE_KEY(voice))
+				func(i, FALSE);
+		break;
+	default:
+		for (i = 0; i < awe_max_voices; i++)
+			if (KEY_CHAN_MATCH(voices[i].key, voice))
+				func(i, FALSE);
+		break;
+	}
+}
+
+
+/*----------------------------------------------------------------
+ * device open / close
+ *----------------------------------------------------------------*/
+
+/* open device:
+ *   reset status of all voices, and clear sample position flag
+ */
+static int
+awe_open(int dev, int mode)
+{
+	if (awe_busy)
+		return RET_ERROR(EBUSY);
+
+	awe_busy = TRUE;
+
+	/* set default mode */
+	awe_init_misc_modes(FALSE);
+	init_atten = misc_modes[AWE_MD_ZERO_ATTEN];
+	drum_flags = DEFAULT_DRUM_FLAGS;
+	playing_mode = AWE_PLAY_INDIRECT;
+
+	/* reset voices & channels */
+	awe_reset(dev);
+
+	patch_opened = 0;
+
+	return 0;
+}
+
+
+/* close device:
+ *   reset all voices again (terminate sounds)
+ */
+static void
+awe_close(int dev)
+{
+	awe_reset(dev);
+	awe_busy = FALSE;
+}
+
+
+/* set miscellaneous mode parameters
+ */
+static void
+awe_init_misc_modes(int init_all)
+{
+	int i;
+	for (i = 0; i < AWE_MD_END; i++) {
+		if (init_all || misc_modes_default[i].init_each_time)
+			misc_modes[i] = misc_modes_default[i].value;
+	}
+}
+
+
+/* sequencer I/O control:
+ */
+static int
+awe_ioctl(int dev, unsigned int cmd, caddr_t arg)
+{
+	switch (cmd) {
+	case SNDCTL_SYNTH_INFO:
+		if (playing_mode == AWE_PLAY_DIRECT)
+			awe_info.nr_voices = awe_max_voices;
+		else
+			awe_info.nr_voices = AWE_MAX_CHANNELS;
+		IOCTL_TO_USER((char*)arg, 0, &awe_info, sizeof(awe_info));
+		return 0;
+		break;
+
+	case SNDCTL_SEQ_RESETSAMPLES:
+		awe_reset_samples();
+		awe_reset(dev);
+		return 0;
+		break;
+
+	case SNDCTL_SEQ_PERCMODE:
+		/* what's this? */
+		return 0;
+		break;
+
+	case SNDCTL_SYNTH_MEMAVL:
+		return awe_mem_size - awe_free_mem_ptr() * 2;
+
+	default:
+		printk("AWE32: unsupported ioctl %d\n", cmd);
+		return RET_ERROR(EINVAL);
+	}
+}
+
+
+static int voice_in_range(int voice)
+{
+	if (playing_mode == AWE_PLAY_DIRECT) {
+		if (voice < 0 || voice >= awe_max_voices)
+			return FALSE;
+	} else {
+		if (voice < 0 || voice >= AWE_MAX_CHANNELS)
+			return FALSE;
+	}
+	return TRUE;
+}
+
+static void release_voice(int voice, int do_sustain)
+{
+	if (IS_NO_SOUND(voice))
+		return;
+	if (do_sustain && (voices[voice].cinfo->sustained == 127 ||
+			    voices[voice].sostenuto == 127))
+		voices[voice].state = AWE_ST_SUSTAINED;
+	else {
+		awe_note_off(voice);
+		awe_fx_init(voices[voice].ch);
+		awe_voice_init(voice, FALSE);
+	}
+}
+
+/* release all notes */
+static void awe_note_off_all(int do_sustain)
+{
+	int i;
+	for (i = 0; i < awe_max_voices; i++)
+		release_voice(i, do_sustain);
+}
+
+/* kill a voice:
+ *   not terminate, just release the voice.
+ */
+static int
+awe_kill_note(int dev, int voice, int note, int velocity)
+{
+	int i, v2, key;
+
+	DEBUG(2,printk("AWE32: [off(%d) nt=%d vl=%d]\n", voice, note, velocity));
+	if (! voice_in_range(voice))
+		return RET_ERROR(EINVAL);
+
+	switch (playing_mode) {
+	case AWE_PLAY_DIRECT:
+	case AWE_PLAY_INDIRECT:
+		key = AWE_VOICE_KEY(voice);
+		break;
+
+	case AWE_PLAY_MULTI2:
+		v2 = voice_alloc->map[voice] >> 8;
+		voice_alloc->map[voice] = 0;
+		voice = v2;
+		if (voice < 0 || voice >= AWE_MAX_CHANNELS)
+			return RET_ERROR(EINVAL);
+		/* continue to below */
+	default:
+		key = AWE_CHAN_KEY(voice, note);
+		break;
+	}
+
+	for (i = 0; i < awe_max_voices; i++) {
+		if (voices[i].key == key)
+			release_voice(i, TRUE);
+	}
+	return 0;
+}
+
+
+static void start_or_volume_change(int voice, int velocity)
+{
+	voices[voice].velocity = velocity;
+	awe_calc_volume(voice);
+	if (voices[voice].state == AWE_ST_STANDBY)
+		awe_note_on(voice);
+	else if (voices[voice].state == AWE_ST_ON)
+		awe_set_volume(voice, FALSE);
+}
+
+static void set_and_start_voice(int voice, int state)
+{
+	/* calculate pitch & volume parameters */
+	voices[voice].state = state;
+	awe_calc_pitch(voice);
+	awe_calc_volume(voice);
+	if (state == AWE_ST_ON)
+		awe_note_on(voice);
+}
+
+/* start a voice:
+ *   if note is 255, identical with aftertouch function.
+ *   Otherwise, start a voice with specified not and volume.
+ */
+static int
+awe_start_note(int dev, int voice, int note, int velocity)
+{
+	int i, key, state, volonly;
+
+	DEBUG(2,printk("AWE32: [on(%d) nt=%d vl=%d]\n", voice, note, velocity));
+	if (! voice_in_range(voice))
+		return RET_ERROR(EINVAL);
+	    
+	if (velocity == 0)
+		state = AWE_ST_STANDBY; /* stand by for playing */
+	else
+		state = AWE_ST_ON;	/* really play */
+	volonly = FALSE;
+
+	switch (playing_mode) {
+	case AWE_PLAY_DIRECT:
+	case AWE_PLAY_INDIRECT:
+		key = AWE_VOICE_KEY(voice);
+		if (note == 255)
+			volonly = TRUE;
+		break;
+
+	case AWE_PLAY_MULTI2:
+		voice = voice_alloc->map[voice] >> 8;
+		if (voice < 0 || voice >= AWE_MAX_CHANNELS)
+			return RET_ERROR(EINVAL);
+		/* continue to below */
+	default:
+		if (note >= 128) { /* key volume mode */
+			note -= 128;
+			volonly = TRUE;
+		}
+		key = AWE_CHAN_KEY(voice, note);
+		break;
+	}
+
+	/* dynamic volume change */
+	if (volonly) {
+		for (i = 0; i < awe_max_voices; i++) {
+			if (voices[i].key == key)
+				start_or_volume_change(i, velocity);
+		}
+		return 0;
+	}
+
+	/* if the same note still playing, stop it */
+	for (i = 0; i < awe_max_voices; i++)
+		if (voices[i].key == key) {
+			if (voices[i].state == AWE_ST_ON) {
+				awe_note_off(i);
+				awe_voice_init(i, FALSE);
+			} else if (voices[i].state == AWE_ST_STANDBY)
+				awe_voice_init(i, TRUE);
+		}
+
+	/* allocate voices */
+	if (playing_mode == AWE_PLAY_DIRECT)
+		awe_alloc_one_voice(voice, note, velocity);
+	else
+		awe_alloc_multi_voices(voice, note, velocity, key);
+
+	/* turn off other voices exlusively (for drums) */
+	for (i = 0; i < awe_max_voices; i++)
+		if (voices[i].key == key)
+			awe_exclusive_off(i);
+
+	/* set up pitch and volume parameters */
+	for (i = 0; i < awe_max_voices; i++) {
+		if (voices[i].key == key && voices[i].state == AWE_ST_OFF)
+			set_and_start_voice(i, state);
+	}
+
+	return 0;
+}
+
+
+/* search instrument from preset table with the specified bank */
+static int
+awe_search_instr(int bank, int preset)
+{
+	int i;
+
+	for (i = preset_table[preset]; i >= 0; i = infos[i].next_bank) {
+		if (infos[i].bank == bank)
+			return i;
+	}
+	return -1;
+}
+
+
+/* assign the instrument to a voice */
+static int
+awe_set_instr_2(int dev, int voice, int instr_no)
+{
+	if (playing_mode == AWE_PLAY_MULTI2) {
+		voice = voice_alloc->map[voice] >> 8;
+		if (voice < 0 || voice >= AWE_MAX_CHANNELS)
+			return RET_ERROR(EINVAL);
+	}
+	return awe_set_instr(dev, voice, instr_no);
+}
+
+/* assign the instrument to a channel; voice is the channel number */
+static int
+awe_set_instr(int dev, int voice, int instr_no)
+{
+	awe_chan_info *cinfo;
+	int def_bank;
+
+	if (! voice_in_range(voice))
+		return RET_ERROR(EINVAL);
+
+	if (instr_no < 0 || instr_no >= AWE_MAX_PRESETS)
+		return RET_ERROR(EINVAL);
+
+	cinfo = &channels[voice];
+
+	if (MULTI_LAYER_MODE() && IS_DRUM_CHANNEL(voice))
+		def_bank = AWE_DRUM_BANK; /* always search drumset */
+	else
+		def_bank = cinfo->bank;
+
+	cinfo->vrec = -1;
+	cinfo->def_vrec = -1;
+	cinfo->vrec = awe_search_instr(def_bank, instr_no);
+	if (def_bank == AWE_DRUM_BANK)	/* search default drumset */
+		cinfo->def_vrec = awe_search_instr(def_bank, misc_modes[AWE_MD_DEF_DRUM]);
+	else	/* search default preset */
+		cinfo->def_vrec = awe_search_instr(misc_modes[AWE_MD_DEF_BANK], instr_no);
+
+	if (cinfo->vrec < 0 && cinfo->def_vrec < 0) {
+		DEBUG(1,printk("AWE32 Warning: can't find instrument %d\n", instr_no));
+	}
+
+	cinfo->instr = instr_no;
+
+	return 0;
+}
+
+
+/* reset all voices; terminate sounds and initialize parameters */
+static void
+awe_reset(int dev)
+{
+	int i;
+	current_alloc_time = 0;
+	/* don't turn off voice 31 and 32.  they are used also for FM voices */
+	for (i = 0; i < awe_max_voices; i++) {
+		awe_terminate(i);
+		awe_voice_init(i, TRUE);
+	}
+	for (i = 0; i < AWE_MAX_CHANNELS; i++)
+		awe_channel_init(i, TRUE);
+	for (i = 0; i < 16; i++) {
+		awe_operations.chn_info[i].controllers[CTL_MAIN_VOLUME] = 127;
+		awe_operations.chn_info[i].controllers[CTL_EXPRESSION] = 127;
+	}
+	awe_init_fm();
+	awe_tweak();
+}
+
+
+/* hardware specific control:
+ *   GUS specific and AWE32 specific controls are available.
+ */
+static void
+awe_hw_control(int dev, unsigned char *event)
+{
+	int cmd = event[2];
+	if (cmd & _AWE_MODE_FLAG)
+		awe_hw_awe_control(dev, cmd & _AWE_MODE_VALUE_MASK, event);
+#ifdef AWE_HAS_GUS_COMPATIBILITY
+	else
+		awe_hw_gus_control(dev, cmd & _AWE_MODE_VALUE_MASK, event);
+#endif
+}
+
+
+#ifdef AWE_HAS_GUS_COMPATIBILITY
+
+/* GUS compatible controls */
+static void
+awe_hw_gus_control(int dev, int cmd, unsigned char *event)
+{
+	int voice, i, key;
+	unsigned short p1;
+	short p2;
+	int plong;
+
+	if (MULTI_LAYER_MODE())
+		return;
+	if (cmd == _GUS_NUMVOICES)
+		return;
+
+	voice = event[3];
+	if (! voice_in_range(voice))
+		return;
+
+	p1 = *(unsigned short *) &event[4];
+	p2 = *(short *) &event[6];
+	plong = *(int*) &event[4];
+
+	switch (cmd) {
+	case _GUS_VOICESAMPLE:
+		awe_set_instr(dev, voice, p1);
+		return;
+
+	case _GUS_VOICEBALA:
+		/* 0 to 15 --> -128 to 127 */
+		awe_panning(dev, voice, ((int)p1 << 4) - 128);
+		return;
+
+	case _GUS_VOICEVOL:
+	case _GUS_VOICEVOL2:
+		/* not supported yet */
+		return;
+
+	case _GUS_RAMPRANGE:
+	case _GUS_RAMPRATE:
+	case _GUS_RAMPMODE:
+	case _GUS_RAMPON:
+	case _GUS_RAMPOFF:
+		/* volume ramping not supported */
+		return;
+
+	case _GUS_VOLUME_SCALE:
+		return;
+
+	case _GUS_VOICE_POS:
+		FX_SET(&channels[voice].fx, AWE_FX_SAMPLE_START,
+		       (short)(plong & 0x7fff));
+		FX_SET(&channels[voice].fx, AWE_FX_COARSE_SAMPLE_START,
+		       (plong >> 15) & 0xffff);
+		return;
+	}
+
+	key = AWE_VOICE_KEY(voice);
+	for (i = 0; i < awe_max_voices; i++) {
+		if (voices[i].key == key) {
+			switch (cmd) {
+			case _GUS_VOICEON:
+				awe_note_on(i);
+				break;
+
+			case _GUS_VOICEOFF:
+				awe_terminate(i);
+				awe_fx_init(voices[i].ch);
+				awe_voice_init(i, TRUE);
+				break;
+
+			case _GUS_VOICEFADE:
+				awe_note_off(i);
+				awe_fx_init(voices[i].ch);
+				awe_voice_init(i, FALSE);
+				break;
+
+			case _GUS_VOICEFREQ:
+				awe_calc_pitch_from_freq(i, plong);
+				break;
+			}
+		}
+	}
+}
+
+#endif
+
+
+/* AWE32 specific controls */
+static void
+awe_hw_awe_control(int dev, int cmd, unsigned char *event)
+{
+	int voice;
+	unsigned short p1;
+	short p2;
+	awe_chan_info *cinfo;
+	FX_Rec *fx;
+	int i;
+
+	voice = event[3];
+	if (! voice_in_range(voice))
+		return;
+
+	if (playing_mode == AWE_PLAY_MULTI2) {
+		voice = voice_alloc->map[voice] >> 8;
+		if (voice < 0 || voice >= AWE_MAX_CHANNELS)
+			return;
+	}
+
+	p1 = *(unsigned short *) &event[4];
+	p2 = *(short *) &event[6];
+	cinfo = &channels[voice];
+
+	switch (cmd) {
+	case _AWE_DEBUG_MODE:
+		debug_mode = p1;
+		printk("AWE32: debug mode = %d\n", debug_mode);
+		break;
+	case _AWE_REVERB_MODE:
+		awe_set_reverb_mode(p1);
+		break;
+
+	case _AWE_CHORUS_MODE:
+		awe_set_chorus_mode(p1);
+		break;
+		      
+	case _AWE_REMOVE_LAST_SAMPLES:
+		DEBUG(0,printk("AWE32: remove last samples\n"));
+		if (locked_sf_id > 0)
+			awe_remove_samples(locked_sf_id);
+		break;
+
+	case _AWE_INITIALIZE_CHIP:
+		awe_initialize();
+		break;
+
+	case _AWE_SEND_EFFECT:
+		fx = &cinfo->fx;
+		i = FX_FLAG_SET;
+		if (p1 >= 0x100) {
+			int layer = (p1 >> 8);
+			if (layer >= 0 && layer < MAX_LAYERS)
+				fx = &cinfo->fx_layer[layer];
+			p1 &= 0xff;
+		}
+		if (p1 & 0x40) i = FX_FLAG_OFF;
+		if (p1 & 0x80) i = FX_FLAG_ADD;
+		p1 &= 0x3f;
+		if (p1 < AWE_FX_END) {
+			DEBUG(0,printk("AWE32: effects (%d) %d %d\n", voice, p1, p2));
+			if (i == FX_FLAG_SET)
+				FX_SET(fx, p1, p2);
+			else if (i == FX_FLAG_ADD)
+				FX_ADD(fx, p1, p2);
+			else
+				FX_UNSET(fx, p1);
+			if (i != FX_FLAG_OFF && parm_defs[p1].realtime) {
+				DEBUG(0,printk("AWE32: fx_realtime (%d)\n", voice));
+				awe_voice_change(voice, parm_defs[p1].realtime);
+			}
+		}
+		break;
+
+	case _AWE_RESET_CHANNEL:
+		awe_channel_init(voice, !p1);
+		break;
+		
+	case _AWE_TERMINATE_ALL:
+		awe_reset(0);
+		break;
+
+	case _AWE_TERMINATE_CHANNEL:
+		awe_voice_change(voice, awe_terminate_and_init);
+		break;
+
+	case _AWE_RELEASE_ALL:
+		awe_note_off_all(FALSE);
+		break;
+	case _AWE_NOTEOFF_ALL:
+		awe_note_off_all(TRUE);
+		break;
+
+	case _AWE_INITIAL_VOLUME:
+		DEBUG(0,printk("AWE32: init attenuation %d\n", p1));
+		if (p2 == 0) /* absolute value */
+			init_atten = (short)p1;
+		else /* relative value */
+			init_atten = misc_modes[AWE_MD_ZERO_ATTEN] + (short)p1;
+		if (init_atten < 0) init_atten = 0;
+		for (i = 0; i < awe_max_voices; i++)
+			awe_set_voice_vol(i, TRUE);
+		break;
+
+	case _AWE_CHN_PRESSURE:
+		cinfo->chan_press = p1;
+		p1 = p1 * misc_modes[AWE_MD_MOD_SENSE] / 1200;
+		FX_ADD(&cinfo->fx, AWE_FX_LFO1_PITCH, p1);
+		awe_voice_change(voice, awe_fx_fmmod);
+		FX_ADD(&cinfo->fx, AWE_FX_LFO2_PITCH, p1);
+		awe_voice_change(voice, awe_fx_fm2frq2);
+		break;
+
+	case _AWE_CHANNEL_MODE:
+		DEBUG(0,printk("AWE32: channel mode = %d\n", p1));
+		playing_mode = p1;
+		awe_reset(0);
+		break;
+
+	case _AWE_DRUM_CHANNELS:
+		DEBUG(0,printk("AWE32: drum flags = %x\n", p1));
+		drum_flags = *(unsigned int*)&event[4];
+		break;
+
+	case _AWE_MISC_MODE:
+		DEBUG(0,printk("AWE32: misc mode = %d %d\n", p1, p2));
+		if (p1 > AWE_MD_VERSION && p1 < AWE_MD_END)
+			misc_modes[p1] = p2;
+		break;
+
+	case _AWE_EQUALIZER:
+		awe_equalizer((int)p1, (int)p2);
+		break;
+
+	default:
+		DEBUG(0,printk("AWE32: hw control cmd=%d voice=%d\n", cmd, voice));
+		break;
+	}
+}
+
+
+/* voice pressure change */
+static void
+awe_aftertouch(int dev, int voice, int pressure)
+{
+	int note;
+
+	DEBUG(2,printk("AWE32: [after(%d) %d]\n", voice, pressure));
+	if (! voice_in_range(voice))
+		return;
+
+	switch (playing_mode) {
+	case AWE_PLAY_DIRECT:
+	case AWE_PLAY_INDIRECT:
+		awe_start_note(dev, voice, 255, pressure);
+		break;
+	case AWE_PLAY_MULTI2:
+		note = (voice_alloc->map[voice] & 0xff) - 1;
+		awe_start_note(dev, voice, note + 0x80, pressure);
+		break;
+	}
+}
+
+
+/* voice control change */
+static void
+awe_controller(int dev, int voice, int ctrl_num, int value)
+{
+	int i;
+	awe_chan_info *cinfo;
+
+	if (! voice_in_range(voice))
+		return;
+
+	if (playing_mode == AWE_PLAY_MULTI2) {
+		voice = voice_alloc->map[voice] >> 8;
+		if (voice < 0 || voice >= AWE_MAX_CHANNELS)
+			return;
+	}
+
+	cinfo = &channels[voice];
+
+	switch (ctrl_num) {
+	case CTL_BANK_SELECT: /* MIDI control #0 */
+		DEBUG(2,printk("AWE32: [bank(%d) %d]\n", voice, value));
+		if (MULTI_LAYER_MODE() && IS_DRUM_CHANNEL(voice) &&
+		    !misc_modes[AWE_MD_TOGGLE_DRUM_BANK])
+			break;
+		cinfo->bank = value;
+		if (cinfo->bank == AWE_DRUM_BANK)
+			DRUM_CHANNEL_ON(cinfo->channel);
+		else
+			DRUM_CHANNEL_OFF(cinfo->channel);
+		awe_set_instr(dev, voice, cinfo->instr);
+		break;
+
+	case CTL_MODWHEEL: /* MIDI control #1 */
+		DEBUG(2,printk("AWE32: [modwheel(%d) %d]\n", voice, value));
+		i = value * misc_modes[AWE_MD_MOD_SENSE] / 1200;
+		FX_ADD(&cinfo->fx, AWE_FX_LFO1_PITCH, i);
+		awe_voice_change(voice, awe_fx_fmmod);
+		FX_ADD(&cinfo->fx, AWE_FX_LFO2_PITCH, i);
+		awe_voice_change(voice, awe_fx_fm2frq2);
+		break;
+
+	case CTRL_PITCH_BENDER: /* SEQ1 V2 contorl */
+		DEBUG(2,printk("AWE32: [bend(%d) %d]\n", voice, value));
+		/* zero centered */
+		cinfo->bender = value;
+		awe_voice_change(voice, awe_set_voice_pitch);
+		break;
+
+	case CTRL_PITCH_BENDER_RANGE: /* SEQ1 V2 control */
+		DEBUG(2,printk("AWE32: [range(%d) %d]\n", voice, value));
+		/* value = sense x 100 */
+		cinfo->bender_range = value;
+		/* no audible pitch change yet.. */
+		break;
+
+	case CTL_EXPRESSION: /* MIDI control #11 */
+		if (SINGLE_LAYER_MODE())
+			value /= 128;
+	case CTRL_EXPRESSION: /* SEQ1 V2 control */
+		DEBUG(2,printk("AWE32: [expr(%d) %d]\n", voice, value));
+		/* 0 - 127 */
+		cinfo->expression_vol = value;
+		awe_voice_change(voice, awe_set_voice_vol);
+		break;
+
+	case CTL_PAN:	/* MIDI control #10 */
+		DEBUG(2,printk("AWE32: [pan(%d) %d]\n", voice, value));
+		/* (0-127) -> signed 8bit */
+		cinfo->panning = value * 2 - 128;
+		if (misc_modes[AWE_MD_REALTIME_PAN])
+			awe_voice_change(voice, awe_set_pan);
+		break;
+
+	case CTL_MAIN_VOLUME:	/* MIDI control #7 */
+		if (SINGLE_LAYER_MODE())
+			value = (value * 100) / 16383;
+	case CTRL_MAIN_VOLUME:	/* SEQ1 V2 control */
+		DEBUG(2,printk("AWE32: [mainvol(%d) %d]\n", voice, value));
+		/* 0 - 127 */
+		cinfo->main_vol = value;
+		awe_voice_change(voice, awe_set_voice_vol);
+		break;
+
+	case CTL_EXT_EFF_DEPTH: /* reverb effects: 0-127 */
+		DEBUG(2,printk("AWE32: [reverb(%d) %d]\n", voice, value));
+		FX_SET(&cinfo->fx, AWE_FX_REVERB, value * 2);
+		break;
+
+	case CTL_CHORUS_DEPTH: /* chorus effects: 0-127 */
+		DEBUG(2,printk("AWE32: [chorus(%d) %d]\n", voice, value));
+		FX_SET(&cinfo->fx, AWE_FX_CHORUS, value * 2);
+		break;
+
+#ifdef AWE_ACCEPT_ALL_SOUNDS_CONTROLL
+	case 120:  /* all sounds off */
+		awe_note_off_all(FALSE);
+		break;
+	case 123:  /* all notes off */
+		awe_note_off_all(TRUE);
+		break;
+#endif
+
+	case CTL_SUSTAIN: /* MIDI control #64 */
+		cinfo->sustained = value;
+		if (value != 127)
+			awe_voice_change(voice, awe_sustain_off);
+		break;
+
+	case CTL_SOSTENUTO: /* MIDI control #66 */
+		if (value == 127)
+			awe_voice_change(voice, awe_sostenuto_on);
+		else
+			awe_voice_change(voice, awe_sustain_off);
+		break;
+
+	default:
+		DEBUG(0,printk("AWE32: [control(%d) ctrl=%d val=%d]\n",
+			   voice, ctrl_num, value));
+		break;
+	}
+}
+
+
+/* voice pan change (value = -128 - 127) */
+static void
+awe_panning(int dev, int voice, int value)
+{
+	awe_chan_info *cinfo;
+
+	if (! voice_in_range(voice))
+		return;
+
+	if (playing_mode == AWE_PLAY_MULTI2) {
+		voice = voice_alloc->map[voice] >> 8;
+		if (voice < 0 || voice >= AWE_MAX_CHANNELS)
+			return;
+	}
+
+	cinfo = &channels[voice];
+	cinfo->panning = value;
+	DEBUG(2,printk("AWE32: [pan(%d) %d]\n", voice, cinfo->panning));
+	if (misc_modes[AWE_MD_REALTIME_PAN])
+		awe_voice_change(voice, awe_set_pan);
+}
+
+
+/* volume mode change */
+static void
+awe_volume_method(int dev, int mode)
+{
+	/* not impremented */
+	DEBUG(0,printk("AWE32: [volmethod mode=%d]\n", mode));
+}
+
+
+#ifndef AWE_NO_PATCHMGR
+/* patch manager */
+static int
+awe_patchmgr(int dev, struct patmgr_info *rec)
+{
+	printk("AWE32 Warning: patch manager control not supported\n");
+	return 0;
+}
+#endif
+
+
+/* pitch wheel change: 0-16384 */
+static void
+awe_bender(int dev, int voice, int value)
+{
+	awe_chan_info *cinfo;
+
+	if (! voice_in_range(voice))
+		return;
+
+	if (playing_mode == AWE_PLAY_MULTI2) {
+		voice = voice_alloc->map[voice] >> 8;
+		if (voice < 0 || voice >= AWE_MAX_CHANNELS)
+			return;
+	}
+
+	/* convert to zero centered value */
+	cinfo = &channels[voice];
+	cinfo->bender = value - 8192;
+	DEBUG(2,printk("AWE32: [bend(%d) %d]\n", voice, cinfo->bender));
+	awe_voice_change(voice, awe_set_voice_pitch);
+}
+
+
+/*----------------------------------------------------------------
+ * load a sound patch:
+ *   three types of patches are accepted: AWE, GUS, and SYSEX.
+ *----------------------------------------------------------------*/
+
+static int
+awe_load_patch(int dev, int format, const char *addr,
+	       int offs, int count, int pmgr_flag)
+{
+	awe_patch_info patch;
+	int rc = 0;
+
+#ifdef AWE_HAS_GUS_COMPATIBILITY
+	if (format == GUS_PATCH) {
+		return awe_load_guspatch(addr, offs, count, pmgr_flag);
+	} else
+#endif
+	if (format == SYSEX_PATCH) {
+		/* no system exclusive message supported yet */
+		return 0;
+	} else if (format != AWE_PATCH) {
+		printk("AWE32 Error: Invalid patch format (key) 0x%x\n", format);
+		return RET_ERROR(EINVAL);
+	}
+	
+	if (count < AWE_PATCH_INFO_SIZE) {
+		printk("AWE32 Error: Patch header too short\n");
+		return RET_ERROR(EINVAL);
+	}
+	COPY_FROM_USER(((char*)&patch) + offs, addr, offs, 
+		       AWE_PATCH_INFO_SIZE - offs);
+
+	count -= AWE_PATCH_INFO_SIZE;
+	if (count < patch.len) {
+		printk("AWE32: sample: Patch record too short (%d<%d)\n",
+		       count, patch.len);
+		return RET_ERROR(EINVAL);
+	}
+	
+	switch (patch.type) {
+	case AWE_LOAD_INFO:
+		rc = awe_load_info(&patch, addr, count);
+		break;
+	case AWE_LOAD_DATA:
+		rc = awe_load_data(&patch, addr, count);
+		break;
+	case AWE_OPEN_PATCH:
+		rc = awe_open_patch(&patch, addr, count);
+		break;
+	case AWE_CLOSE_PATCH:
+		rc = awe_close_patch(&patch, addr, count);
+		break;
+	case AWE_UNLOAD_PATCH:
+		rc = awe_unload_patch(&patch, addr, count);
+		break;
+	case AWE_REPLACE_DATA:
+		rc = awe_replace_data(&patch, addr, count);
+		break;
+	case AWE_MAP_PRESET:
+		rc = awe_load_map(&patch, addr, count);
+		break;
+	case AWE_LOAD_CHORUS_FX:
+		rc = awe_load_chorus_fx(&patch, addr, count);
+		break;
+	case AWE_LOAD_REVERB_FX:
+		rc = awe_load_reverb_fx(&patch, addr, count);
+		break;
+
+	default:
+		printk("AWE32 Error: unknown patch format type %d\n",
+		       patch.type);
+		rc = RET_ERROR(EINVAL);
+	}
+
+	return rc;
+}
+
+
+/* create an sflist record */
+static int
+awe_create_sf(int type, char *name)
+{
+	sf_list *rec;
+
+	/* terminate sounds */
+	awe_reset(0);
+	if (current_sf_id >= max_sfs) {
+		int newsize = max_sfs + AWE_MAX_SF_LISTS;
+		sf_list *newlist = my_realloc(sflists, sizeof(sf_list)*max_sfs,
+					      sizeof(sf_list)*newsize);
+		if (newlist == NULL)
+			return 1;
+		sflists = newlist;
+		max_sfs = newsize;
+	}
+	rec = &sflists[current_sf_id];
+	rec->sf_id = current_sf_id + 1;
+	rec->type = type;
+	if (current_sf_id == 0 || (type & AWE_PAT_LOCKED) != 0)
+		locked_sf_id = current_sf_id + 1;
+	/*
+	if (name)
+		MEMCPY(rec->name, name, AWE_PATCH_NAME_LEN);
+	else
+		BZERO(rec->name, AWE_PATCH_NAME_LEN);
+	 */
+	rec->num_info = awe_free_info();
+	rec->num_sample = awe_free_sample();
+	rec->mem_ptr = awe_free_mem_ptr();
+	rec->infos = -1;
+	rec->samples = -1;
+
+	current_sf_id++;
+	return 0;
+}
+
+
+/* open patch; create sf list and set opened flag */
+static int
+awe_open_patch(awe_patch_info *patch, const char *addr, int count)
+{
+	awe_open_parm parm;
+	COPY_FROM_USER(&parm, addr, AWE_PATCH_INFO_SIZE, sizeof(parm));
+	if (awe_create_sf(parm.type, parm.name)) {
+		printk("AWE32: can't open: failed to alloc new list\n");
+		return RET_ERROR(ENOSPC);
+	}
+	patch_opened = TRUE;
+	return current_sf_id;
+}
+
+/* check if the patch is already opened */
+static int
+check_patch_opened(int type, char *name)
+{
+	if (! patch_opened) {
+		if (awe_create_sf(type, name)) {
+			printk("AWE32: failed to alloc new list\n");
+			return RET_ERROR(ENOSPC);
+		}
+		patch_opened = TRUE;
+		return current_sf_id;
+	}
+	return current_sf_id;
+}
+
+/* close the patch; if no voice is loaded, remove the patch */
+static int
+awe_close_patch(awe_patch_info *patch, const char *addr, int count)
+{
+	if (patch_opened && current_sf_id > 0) {
+		/* if no voice is loaded, release the current patch */
+		if (sflists[current_sf_id-1].infos == -1)
+			awe_remove_samples(current_sf_id - 1);
+	}
+	patch_opened = 0;
+	return 0;
+}
+
+
+/* remove the latest patch */
+static int
+awe_unload_patch(awe_patch_info *patch, const char *addr, int count)
+{
+	if (current_sf_id > 0)
+		awe_remove_samples(current_sf_id - 1);
+	return 0;
+}
+
+/* allocate voice info list records */
+static int alloc_new_info(int nvoices)
+{
+	int newsize, free_info;
+	awe_voice_list *newlist;
+	free_info = awe_free_info();
+	if (free_info + nvoices >= max_infos) {
+		do {
+			newsize = max_infos + AWE_MAX_INFOS;
+		} while (free_info + nvoices >= newsize);
+		newlist = my_realloc(infos, sizeof(awe_voice_list)*max_infos,
+				     sizeof(awe_voice_list)*newsize);
+		if (newlist == NULL) {
+			printk("AWE32: can't alloc info table\n");
+			return RET_ERROR(ENOSPC);
+		}
+		infos = newlist;
+		max_infos = newsize;
+	}
+	return 0;
+}
+
+/* allocate sample info list records */
+static int alloc_new_sample(void)
+{
+	int newsize, free_sample;
+	awe_sample_list *newlist;
+	free_sample = awe_free_sample();
+	if (free_sample >= max_samples) {
+		newsize = max_samples + AWE_MAX_SAMPLES;
+		newlist = my_realloc(samples,
+				     sizeof(awe_sample_list)*max_samples,
+				     sizeof(awe_sample_list)*newsize);
+		if (newlist == NULL) {
+			printk("AWE32: can't alloc sample table\n");
+			return RET_ERROR(ENOSPC);
+		}
+		samples = newlist;
+		max_samples = newsize;
+	}
+	return 0;
+}
+
+/* load voice map */
+static int
+awe_load_map(awe_patch_info *patch, const char *addr, int count)
+{
+	awe_voice_map map;
+	awe_voice_list *rec;
+	int free_info;
+
+	if (check_patch_opened(AWE_PAT_TYPE_MAP, NULL) < 0)
+		return RET_ERROR(ENOSPC);
+	if (alloc_new_info(1) < 0)
+		return RET_ERROR(ENOSPC);
+
+	COPY_FROM_USER(&map, addr, AWE_PATCH_INFO_SIZE, sizeof(map));
+	
+	free_info = awe_free_info();
+	rec = &infos[free_info];
+	rec->bank = map.map_bank;
+	rec->instr = map.map_instr;
+	rec->type = V_ST_MAPPED;
+	rec->disabled = FALSE;
+	awe_init_voice_info(&rec->v);
+	if (map.map_key >= 0) {
+		rec->v.low = map.map_key;
+		rec->v.high = map.map_key;
+	}
+	rec->v.start = map.src_instr;
+	rec->v.end = map.src_bank;
+	rec->v.fixkey = map.src_key;
+	rec->v.sf_id = current_sf_id;
+	add_info_list(free_info);
+	add_sf_info(free_info);
+
+	return 0;
+}
+
+/* load voice information data */
+static int
+awe_load_info(awe_patch_info *patch, const char *addr, int count)
+{
+	int offset;
+	awe_voice_rec_hdr hdr;
+	int i;
+	int total_size;
+
+	if (count < AWE_VOICE_REC_SIZE) {
+		printk("AWE32 Error: invalid patch info length\n");
+		return RET_ERROR(EINVAL);
+	}
+
+	offset = AWE_PATCH_INFO_SIZE;
+	COPY_FROM_USER((char*)&hdr, addr, offset, AWE_VOICE_REC_SIZE);
+	offset += AWE_VOICE_REC_SIZE;
+
+	if (hdr.nvoices <= 0 || hdr.nvoices >= 100) {
+		printk("AWE32 Error: Illegal voice number %d\n", hdr.nvoices);
+		return RET_ERROR(EINVAL);
+	}
+	total_size = AWE_VOICE_REC_SIZE + AWE_VOICE_INFO_SIZE * hdr.nvoices;
+	if (count < total_size) {
+		printk("AWE32 Error: patch length(%d) is smaller than nvoices(%d)\n",
+		       count, hdr.nvoices);
+		return RET_ERROR(EINVAL);
+	}
+
+	if (check_patch_opened(AWE_PAT_TYPE_MISC, NULL) < 0)
+		return RET_ERROR(ENOSPC);
+
+#if 0 /* it looks like not so useful.. */
+	/* check if the same preset already exists in the info list */
+	for (i = sflists[current_sf_id-1].infos; i >= 0; i = infos[i].next) {
+		if (infos[i].disabled) continue;
+		if (infos[i].bank == hdr.bank && infos[i].instr == hdr.instr) {
+			/* in exclusive mode, do skip loading this */
+			if (hdr.write_mode == AWE_WR_EXCLUSIVE)
+				return 0;
+			/* in replace mode, disable the old data */
+			else if (hdr.write_mode == AWE_WR_REPLACE)
+				infos[i].disabled = TRUE;
+		}
+	}
+	if (hdr.write_mode == AWE_WR_REPLACE)
+		rebuild_preset_list();
+#endif
+
+	if (alloc_new_info(hdr.nvoices) < 0)
+		return RET_ERROR(ENOSPC);
+
+	for (i = 0; i < hdr.nvoices; i++) {
+		int rec = awe_free_info();
+
+		infos[rec].bank = hdr.bank;
+		infos[rec].instr = hdr.instr;
+		infos[rec].type = V_ST_NORMAL;
+		infos[rec].disabled = FALSE;
+
+		/* copy awe_voice_info parameters */
+		COPY_FROM_USER(&infos[rec].v, addr, offset, AWE_VOICE_INFO_SIZE);
+		offset += AWE_VOICE_INFO_SIZE;
+		infos[rec].v.sf_id = current_sf_id;
+		if (infos[rec].v.mode & AWE_MODE_INIT_PARM)
+			awe_init_voice_parm(&infos[rec].v.parm);
+		awe_set_sample(&infos[rec].v);
+		add_info_list(rec);
+		add_sf_info(rec);
+	}
+
+	return 0;
+}
+
+/* load wave sample data */
+static int
+awe_load_data(awe_patch_info *patch, const char *addr, int count)
+{
+	int offset, size;
+	int rc, free_sample;
+	awe_sample_info *rec;
+
+	if (check_patch_opened(AWE_PAT_TYPE_MISC, NULL) < 0)
+		return RET_ERROR(ENOSPC);
+
+	if (alloc_new_sample() < 0)
+		return RET_ERROR(ENOSPC);
+
+	free_sample = awe_free_sample();
+	rec = &samples[free_sample].v;
+
+	size = (count - AWE_SAMPLE_INFO_SIZE) / 2;
+	offset = AWE_PATCH_INFO_SIZE;
+	COPY_FROM_USER(rec, addr, offset, AWE_SAMPLE_INFO_SIZE);
+	offset += AWE_SAMPLE_INFO_SIZE;
+	if (size != rec->size) {
+		printk("AWE32: load: sample size differed (%d != %d)\n",
+		       rec->size, size);
+		return RET_ERROR(EINVAL);
+	}
+	if (rec->size > 0)
+		if ((rc = awe_write_wave_data(addr, offset, rec, -1)) != 0)
+			return rc;
+
+	rec->sf_id = current_sf_id;
+
+	add_sf_sample(free_sample);
+
+	return 0;
+}
+
+
+/* replace wave sample data */
+static int
+awe_replace_data(awe_patch_info *patch, const char *addr, int count)
+{
+	int offset;
+	int size;
+	int rc, i;
+	int channels;
+	awe_sample_info cursmp;
+	int save_mem_ptr;
+
+	if (! patch_opened) {
+		printk("AWE32: replace: patch not opened\n");
+		return RET_ERROR(EINVAL);
+	}
+
+	size = (count - AWE_SAMPLE_INFO_SIZE) / 2;
+	offset = AWE_PATCH_INFO_SIZE;
+	COPY_FROM_USER(&cursmp, addr, offset, AWE_SAMPLE_INFO_SIZE);
+	offset += AWE_SAMPLE_INFO_SIZE;
+	if (cursmp.size == 0 || size != cursmp.size) {
+		printk("AWE32: replace: illegal sample size (%d!=%d)\n",
+		       cursmp.size, size);
+		return RET_ERROR(EINVAL);
+	}
+	channels = patch->optarg;
+	if (channels <= 0 || channels > AWE_NORMAL_VOICES) {
+		printk("AWE32: replace: illegal channels %d\n", channels);
+		return RET_ERROR(EINVAL);
+	}
+
+	for (i = sflists[current_sf_id-1].samples;
+	     i >= 0; i = samples[i].next) {
+		if (samples[i].v.sample == cursmp.sample)
+			break;
+	}
+	if (i < 0) {
+		printk("AWE32: replace: cannot find existing sample data %d\n",
+		       cursmp.sample);
+		return RET_ERROR(EINVAL);
+	}
+		
+	if (samples[i].v.size != cursmp.size) {
+		printk("AWE32: replace: exiting size differed (%d!=%d)\n",
+		       samples[i].v.size, cursmp.size);
+		return RET_ERROR(EINVAL);
+	}
+
+	save_mem_ptr = awe_free_mem_ptr();
+	sflists[current_sf_id-1].mem_ptr = samples[i].v.start - awe_mem_start;
+	MEMCPY(&samples[i].v, &cursmp, sizeof(cursmp));
+	if ((rc = awe_write_wave_data(addr, offset, &samples[i].v, channels)) != 0)
+		return rc;
+	sflists[current_sf_id-1].mem_ptr = save_mem_ptr;
+	samples[i].v.sf_id = current_sf_id;
+
+	return 0;
+}
+
+
+/*----------------------------------------------------------------*/
+
+static const char *readbuf_addr;
+static int readbuf_offs;
+static int readbuf_flags;
+#ifdef __FreeBSD__
+static unsigned short *readbuf_loop;
+static int readbuf_loopstart, readbuf_loopend;
+#endif
+
+/* initialize read buffer */
+static int
+readbuf_init(const char *addr, int offset, awe_sample_info *sp)
+{
+#ifdef __FreeBSD__
+	readbuf_loop = NULL;
+	readbuf_loopstart = sp->loopstart;
+	readbuf_loopend = sp->loopend;
+	if (sp->mode_flags & (AWE_SAMPLE_BIDIR_LOOP|AWE_SAMPLE_REVERSE_LOOP)) {
+		int looplen = sp->loopend - sp->loopstart;
+		readbuf_loop = my_malloc(looplen * 2);
+		if (readbuf_loop == NULL) {
+			printk("AWE32: can't malloc temp buffer\n");
+			return RET_ERROR(ENOSPC);
+		}
+	}
+#endif
+	readbuf_addr = addr;
+	readbuf_offs = offset;
+	readbuf_flags = sp->mode_flags;
+	return 0;
+}
+
+/* read directly from user buffer */
+static unsigned short
+readbuf_word(int pos)
+{
+	unsigned short c;
+	/* read from user buffer */
+	if (readbuf_flags & AWE_SAMPLE_8BITS) {
+		unsigned char cc;
+		GET_BYTE_FROM_USER(cc, readbuf_addr, readbuf_offs + pos);
+		c = cc << 8; /* convert 8bit -> 16bit */
+	} else {
+		GET_SHORT_FROM_USER(c, readbuf_addr, readbuf_offs + pos * 2);
+	}
+	if (readbuf_flags & AWE_SAMPLE_UNSIGNED)
+		c ^= 0x8000; /* unsigned -> signed */
+#ifdef __FreeBSD__
+	/* write on cache for reverse loop */
+	if (readbuf_flags & (AWE_SAMPLE_BIDIR_LOOP|AWE_SAMPLE_REVERSE_LOOP)) {
+		if (pos >= readbuf_loopstart && pos < readbuf_loopend)
+			readbuf_loop[pos - readbuf_loopstart] = c;
+	}
+#endif
+	return c;
+}
+
+#ifdef __FreeBSD__
+/* read from cache */
+static unsigned short
+readbuf_word_cache(int pos)
+{
+	if (pos >= readbuf_loopstart && pos < readbuf_loopend)
+		return readbuf_loop[pos - readbuf_loopstart];
+	return 0;
+}
+
+static void
+readbuf_end(void)
+{
+	if (readbuf_loop) {
+		my_free(readbuf_loop);
+	}
+	readbuf_loop = NULL;
+}
+
+#else
+
+#define readbuf_word_cache	readbuf_word
+#define readbuf_end()		/**/
+
+#endif
+
+/*----------------------------------------------------------------*/
+
+#define BLANK_LOOP_START	8
+#define BLANK_LOOP_END		40
+#define BLANK_LOOP_SIZE		48
+
+/* loading onto memory */
+static int 
+awe_write_wave_data(const char *addr, int offset, awe_sample_info *sp, int channels)
+{
+	int i, truesize, dram_offset;
+	int rc;
+
+	/* be sure loop points start < end */
+	if (sp->loopstart > sp->loopend) {
+		int tmp = sp->loopstart;
+		sp->loopstart = sp->loopend;
+		sp->loopend = tmp;
+	}
+
+	/* compute true data size to be loaded */
+	truesize = sp->size;
+	if (sp->mode_flags & AWE_SAMPLE_BIDIR_LOOP)
+		truesize += sp->loopend - sp->loopstart;
+	if (sp->mode_flags & AWE_SAMPLE_NO_BLANK)
+		truesize += BLANK_LOOP_SIZE;
+	if (awe_free_mem_ptr() + truesize >= awe_mem_size/2) {
+		printk("AWE32 Error: Sample memory full\n");
+		return RET_ERROR(ENOSPC);
+	}
+
+	/* recalculate address offset */
+	sp->end -= sp->start;
+	sp->loopstart -= sp->start;
+	sp->loopend -= sp->start;
+
+	dram_offset = awe_free_mem_ptr() + awe_mem_start;
+	sp->start = dram_offset;
+	sp->end += dram_offset;
+	sp->loopstart += dram_offset;
+	sp->loopend += dram_offset;
+
+	/* set the total size (store onto obsolete checksum value) */
+	if (sp->size == 0)
+		sp->checksum = 0;
+	else
+		sp->checksum = truesize;
+
+	if ((rc = awe_open_dram_for_write(dram_offset, channels)) != 0)
+		return rc;
+
+	if (readbuf_init(addr, offset, sp) < 0)
+		return RET_ERROR(ENOSPC);
+
+	for (i = 0; i < sp->size; i++) {
+		unsigned short c;
+		c = readbuf_word(i);
+		awe_write_dram(c);
+		if (i == sp->loopend &&
+		    (sp->mode_flags & (AWE_SAMPLE_BIDIR_LOOP|AWE_SAMPLE_REVERSE_LOOP))) {
+			int looplen = sp->loopend - sp->loopstart;
+			/* copy reverse loop */
+			int k;
+			for (k = 1; k <= looplen; k++) {
+				c = readbuf_word_cache(i - k);
+				awe_write_dram(c);
+			}
+			if (sp->mode_flags & AWE_SAMPLE_BIDIR_LOOP) {
+				sp->end += looplen;
+			} else {
+				sp->start += looplen;
+				sp->end += looplen;
+			}
+		}
+	}
+	readbuf_end();
+
+	/* if no blank loop is attached in the sample, add it */
+	if (sp->mode_flags & AWE_SAMPLE_NO_BLANK) {
+		for (i = 0; i < BLANK_LOOP_SIZE; i++)
+			awe_write_dram(0);
+		if (sp->mode_flags & AWE_SAMPLE_SINGLESHOT) {
+			sp->loopstart = sp->end + BLANK_LOOP_START;
+			sp->loopend = sp->end + BLANK_LOOP_END;
+		}
+	}
+
+	sflists[current_sf_id-1].mem_ptr += truesize;
+	awe_close_dram();
+
+	/* initialize FM */
+	awe_init_fm();
+
+	return 0;
+}
+
+
+/*----------------------------------------------------------------*/
+
+#ifdef AWE_HAS_GUS_COMPATIBILITY
+
+/* calculate GUS envelope time:
+ * is this correct?  i have no idea..
+ */
+static int
+calc_gus_envelope_time(int rate, int start, int end)
+{
+	int r, p, t;
+	r = (3 - ((rate >> 6) & 3)) * 3;
+	p = rate & 0x3f;
+	t = end - start;
+	if (t < 0) t = -t;
+	if (13 > r)
+		t = t << (13 - r);
+	else
+		t = t >> (r - 13);
+	return (t * 10) / (p * 441);
+}
+
+#define calc_gus_sustain(val)  (0x7f - vol_table[(val)/2])
+#define calc_gus_attenuation(val)	vol_table[(val)/2]
+
+/* load GUS patch */
+static int
+awe_load_guspatch(const char *addr, int offs, int size, int pmgr_flag)
+{
+	struct patch_info patch;
+	awe_voice_info *rec;
+	awe_sample_info *smp;
+	int sizeof_patch;
+	int note, free_sample, free_info;
+	int rc;
+
+	sizeof_patch = (int)((long)&patch.data[0] - (long)&patch); /* header size */
+	if (size < sizeof_patch) {
+		printk("AWE32 Error: Patch header too short\n");
+		return RET_ERROR(EINVAL);
+	}
+	COPY_FROM_USER(((char*)&patch) + offs, addr, offs, sizeof_patch - offs);
+	size -= sizeof_patch;
+	if (size < patch.len) {
+		printk("AWE32 Warning: Patch record too short (%d<%d)\n",
+		       size, patch.len);
+		return RET_ERROR(EINVAL);
+	}
+	if (check_patch_opened(AWE_PAT_TYPE_GUS, NULL) < 0)
+		return RET_ERROR(ENOSPC);
+	if (alloc_new_sample() < 0)
+		return RET_ERROR(ENOSPC);
+	if (alloc_new_info(1))
+		return RET_ERROR(ENOSPC);
+
+	free_sample = awe_free_sample();
+	smp = &samples[free_sample].v;
+
+	smp->sample = free_sample;
+	smp->start = 0;
+	smp->end = patch.len;
+	smp->loopstart = patch.loop_start;
+	smp->loopend = patch.loop_end;
+	smp->size = patch.len;
+
+	/* set up mode flags */
+	smp->mode_flags = 0;
+	if (!(patch.mode & WAVE_16_BITS))
+		smp->mode_flags |= AWE_SAMPLE_8BITS;
+	if (patch.mode & WAVE_UNSIGNED)
+		smp->mode_flags |= AWE_SAMPLE_UNSIGNED;
+	smp->mode_flags |= AWE_SAMPLE_NO_BLANK;
+	if (!(patch.mode & (WAVE_LOOPING|WAVE_BIDIR_LOOP|WAVE_LOOP_BACK)))
+		smp->mode_flags |= AWE_SAMPLE_SINGLESHOT;
+	if (patch.mode & WAVE_BIDIR_LOOP)
+		smp->mode_flags |= AWE_SAMPLE_BIDIR_LOOP;
+	if (patch.mode & WAVE_LOOP_BACK)
+		smp->mode_flags |= AWE_SAMPLE_REVERSE_LOOP;
+
+	DEBUG(0,printk("AWE32: [sample %d mode %x]\n", patch.instr_no, smp->mode_flags));
+	if (patch.mode & WAVE_16_BITS) {
+		/* convert to word offsets */
+		smp->size /= 2;
+		smp->end /= 2;
+		smp->loopstart /= 2;
+		smp->loopend /= 2;
+	}
+	smp->checksum_flag = 0;
+	smp->checksum = 0;
+
+	if ((rc = awe_write_wave_data(addr, sizeof_patch, smp, -1)) != 0)
+		return rc;
+
+	smp->sf_id = current_sf_id;
+	add_sf_sample(free_sample);
+
+	/* set up voice info */
+	free_info = awe_free_info();
+	rec = &infos[free_info].v;
+	awe_init_voice_info(rec);
+	rec->sample = free_sample; /* the last sample */
+	rec->rate_offset = calc_rate_offset(patch.base_freq);
+	note = freq_to_note(patch.base_note);
+	rec->root = note / 100;
+	rec->tune = -(note % 100);
+	rec->low = freq_to_note(patch.low_note) / 100;
+	rec->high = freq_to_note(patch.high_note) / 100;
+	DEBUG(1,printk("AWE32: [gus base offset=%d, note=%d, range=%d-%d(%d-%d)]\n",
+		       rec->rate_offset, note,
+		       rec->low, rec->high,
+	      patch.low_note, patch.high_note));
+	/* panning position; -128 - 127 => 0-127 */
+	rec->pan = (patch.panning + 128) / 2;
+
+	/* detuning is ignored */
+	/* 6points volume envelope */
+	if (patch.mode & WAVE_ENVELOPES) {
+		int attack, hold, decay, release;
+		attack = calc_gus_envelope_time
+			(patch.env_rate[0], 0, patch.env_offset[0]);
+		hold = calc_gus_envelope_time
+			(patch.env_rate[1], patch.env_offset[0],
+			 patch.env_offset[1]);
+		decay = calc_gus_envelope_time
+			(patch.env_rate[2], patch.env_offset[1],
+			 patch.env_offset[2]);
+		release = calc_gus_envelope_time
+			(patch.env_rate[3], patch.env_offset[1],
+			 patch.env_offset[4]);
+		release += calc_gus_envelope_time
+			(patch.env_rate[4], patch.env_offset[3],
+			 patch.env_offset[4]);
+		release += calc_gus_envelope_time
+			(patch.env_rate[5], patch.env_offset[4],
+			 patch.env_offset[5]);
+		rec->parm.volatkhld = (calc_parm_attack(attack) << 8) |
+			calc_parm_hold(hold);
+		rec->parm.voldcysus = (calc_gus_sustain(patch.env_offset[2]) << 8) |
+			calc_parm_decay(decay);
+		rec->parm.volrelease = 0x8000 | calc_parm_decay(release);
+		DEBUG(2,printk("AWE32: [gusenv atk=%d, hld=%d, dcy=%d, rel=%d]\n", attack, hold, decay, release));
+		rec->attenuation = calc_gus_attenuation(patch.env_offset[0]);
+	}
+
+	/* tremolo effect */
+	if (patch.mode & WAVE_TREMOLO) {
+		int rate = (patch.tremolo_rate * 1000 / 38) / 42;
+		rec->parm.tremfrq = ((patch.tremolo_depth / 2) << 8) | rate;
+		DEBUG(2,printk("AWE32: [gusenv tremolo rate=%d, dep=%d, tremfrq=%x]\n",
+			       patch.tremolo_rate, patch.tremolo_depth,
+			       rec->parm.tremfrq));
+	}
+	/* vibrato effect */
+	if (patch.mode & WAVE_VIBRATO) {
+		int rate = (patch.vibrato_rate * 1000 / 38) / 42;
+		rec->parm.fm2frq2 = ((patch.vibrato_depth / 6) << 8) | rate;
+		DEBUG(2,printk("AWE32: [gusenv vibrato rate=%d, dep=%d, tremfrq=%x]\n",
+			       patch.tremolo_rate, patch.tremolo_depth,
+			       rec->parm.tremfrq));
+	}
+	
+	/* scale_freq, scale_factor, volume, and fractions not implemented */
+
+	/* append to the tail of the list */
+	infos[free_info].bank = misc_modes[AWE_MD_GUS_BANK];
+	infos[free_info].instr = patch.instr_no;
+	infos[free_info].disabled = FALSE;
+	infos[free_info].type = V_ST_NORMAL;
+	infos[free_info].v.sf_id = current_sf_id;
+
+	add_info_list(free_info);
+	add_sf_info(free_info);
+
+	/* set the voice index */
+	awe_set_sample(rec);
+
+	return 0;
+}
+
+#endif  /* AWE_HAS_GUS_COMPATIBILITY */
+
+/*----------------------------------------------------------------
+ * sample and voice list handlers
+ *----------------------------------------------------------------*/
+
+/* append this to the sf list */
+static void add_sf_info(int rec)
+{
+	int sf_id = infos[rec].v.sf_id;
+	if (sf_id == 0) return;
+	sf_id--;
+	if (sflists[sf_id].infos < 0)
+		sflists[sf_id].infos = rec;
+	else {
+		int i, prev;
+		prev = sflists[sf_id].infos;
+		while ((i = infos[prev].next) >= 0)
+			prev = i;
+		infos[prev].next = rec;
+	}
+	infos[rec].next = -1;
+	sflists[sf_id].num_info++;
+}
+
+/* prepend this sample to sf list */
+static void add_sf_sample(int rec)
+{
+	int sf_id = samples[rec].v.sf_id;
+	if (sf_id == 0) return;
+	sf_id--;
+	samples[rec].next = sflists[sf_id].samples;
+	sflists[sf_id].samples = rec;
+	sflists[sf_id].num_sample++;
+}
+
+/* purge the old records which don't belong with the same file id */
+static void purge_old_list(int rec, int next)
+{
+	infos[rec].next_instr = next;
+	if (infos[rec].bank == AWE_DRUM_BANK) {
+		/* remove samples with the same note range */
+		int cur, *prevp = &infos[rec].next_instr;
+		int low = infos[rec].v.low;
+		int high = infos[rec].v.high;
+		for (cur = next; cur >= 0; cur = infos[cur].next_instr) {
+			if (infos[cur].v.low == low &&
+			    infos[cur].v.high == high &&
+			    infos[cur].v.sf_id != infos[rec].v.sf_id)
+				*prevp = infos[cur].next_instr;
+			prevp = &infos[cur].next_instr;
+		}
+	} else {
+		if (infos[next].v.sf_id != infos[rec].v.sf_id)
+			infos[rec].next_instr = -1;
+	}
+}
+
+/* prepend to top of the preset table */
+static void add_info_list(int rec)
+{
+	int *prevp, cur;
+	int instr = infos[rec].instr;
+	int bank = infos[rec].bank;
+
+	if (infos[rec].disabled)
+		return;
+
+	prevp = &preset_table[instr];
+	cur = *prevp;
+	while (cur >= 0) {
+		/* search the first record with the same bank number */
+		if (infos[cur].bank == bank) {
+			/* replace the list with the new record */
+			infos[rec].next_bank = infos[cur].next_bank;
+			*prevp = rec;
+			purge_old_list(rec, cur);
+			return;
+		}
+		prevp = &infos[cur].next_bank;
+		cur = infos[cur].next_bank;
+	}
+
+	/* this is the first bank record.. just add this */
+	infos[rec].next_instr = -1;
+	infos[rec].next_bank = preset_table[instr];
+	preset_table[instr] = rec;
+}
+
+/* remove samples later than the specified sf_id */
+static void
+awe_remove_samples(int sf_id)
+{
+	if (sf_id <= 0) {
+		awe_reset_samples();
+		return;
+	}
+	/* already removed? */
+	if (current_sf_id <= sf_id)
+		return;
+
+	current_sf_id = sf_id;
+	if (locked_sf_id > sf_id)
+		locked_sf_id = sf_id;
+
+	rebuild_preset_list();
+}
+
+/* rebuild preset search list */
+static void rebuild_preset_list(void)
+{
+	int i, j;
+
+	for (i = 0; i < AWE_MAX_PRESETS; i++)
+		preset_table[i] = -1;
+
+	for (i = 0; i < current_sf_id; i++) {
+		for (j = sflists[i].infos; j >= 0; j = infos[j].next)
+			add_info_list(j);
+	}
+}
+
+/* search the specified sample */
+static short
+awe_set_sample(awe_voice_info *vp)
+{
+	int i;
+	vp->index = -1;
+	for (i = sflists[vp->sf_id-1].samples; i >= 0; i = samples[i].next) {
+		if (samples[i].v.sample == vp->sample) {
+			/* set the actual sample offsets */
+			vp->start += samples[i].v.start;
+			vp->end += samples[i].v.end;
+			vp->loopstart += samples[i].v.loopstart;
+			vp->loopend += samples[i].v.loopend;
+			/* copy mode flags */
+			vp->mode = samples[i].v.mode_flags;
+			/* set index */
+			vp->index = i;
+			return i;
+		}
+	}
+	return -1;
+}
+
+
+/*----------------------------------------------------------------
+ * voice allocation
+ *----------------------------------------------------------------*/
+
+/* look for all voices associated with the specified note & velocity */
+static int
+awe_search_multi_voices(int rec, int note, int velocity, awe_voice_info **vlist)
+{
+	int nvoices;
+
+	nvoices = 0;
+	for (; rec >= 0; rec = infos[rec].next_instr) {
+		if (note >= infos[rec].v.low &&
+		    note <= infos[rec].v.high &&
+		    velocity >= infos[rec].v.vellow &&
+		    velocity <= infos[rec].v.velhigh) {
+			vlist[nvoices] = &infos[rec].v;
+			if (infos[rec].type == V_ST_MAPPED) /* mapper */
+				return -1;
+			nvoices++;
+			if (nvoices >= AWE_MAX_VOICES)
+				break;
+		}
+	}
+	return nvoices;	
+}
+
+/* store the voice list from the specified note and velocity.
+   if the preset is mapped, seek for the destination preset, and rewrite
+   the note number if necessary.
+   */
+static int
+really_alloc_voices(int vrec, int def_vrec, int *note, int velocity, awe_voice_info **vlist, int level)
+{
+	int nvoices;
+
+	nvoices = awe_search_multi_voices(vrec, *note, velocity, vlist);
+	if (nvoices == 0)
+		nvoices = awe_search_multi_voices(def_vrec, *note, velocity, vlist);
+	if (nvoices < 0) { /* mapping */
+		int preset = vlist[0]->start;
+		int bank = vlist[0]->end;
+		int key = vlist[0]->fixkey;
+		if (level > 5) {
+			printk("AWE32: too deep mapping level\n");
+			return 0;
+		}
+		vrec = awe_search_instr(bank, preset);
+		if (bank == AWE_DRUM_BANK)
+			def_vrec = awe_search_instr(bank, 0);
+		else
+			def_vrec = awe_search_instr(0, preset);
+		if (key >= 0)
+			*note = key;
+		return really_alloc_voices(vrec, def_vrec, note, velocity, vlist, level+1);
+	}
+
+	return nvoices;
+}
+
+/* allocate voices corresponding note and velocity; supports multiple insts. */
+static void
+awe_alloc_multi_voices(int ch, int note, int velocity, int key)
+{
+	int i, v, nvoices;
+	awe_voice_info *vlist[AWE_MAX_VOICES];
+
+	if (channels[ch].vrec < 0 && channels[ch].def_vrec < 0)
+		awe_set_instr(0, ch, channels[ch].instr);
+
+	/* check the possible voices; note may be changeable if mapped */
+	nvoices = really_alloc_voices(channels[ch].vrec, channels[ch].def_vrec,
+				      &note, velocity, vlist, 0);
+
+	/* set the voices */
+	current_alloc_time++;
+	for (i = 0; i < nvoices; i++) {
+		v = awe_clear_voice();
+		voices[v].key = key;
+		voices[v].ch = ch;
+		voices[v].note = note;
+		voices[v].velocity = velocity;
+		voices[v].time = current_alloc_time;
+		voices[v].cinfo = &channels[ch];
+		voices[v].sample = vlist[i];
+		voices[v].state = AWE_ST_MARK;
+		voices[v].layer = nvoices - i - 1;  /* in reverse order */
+	}
+
+	/* clear the mark in allocated voices */
+	for (i = 0; i < awe_max_voices; i++) {
+		if (voices[i].state == AWE_ST_MARK)
+			voices[i].state = AWE_ST_OFF;
+			
+	}
+}
+
+
+/* search the best voice from the specified status condition */
+static int
+search_best_voice(int condition)
+{
+	int i, time, best;
+	best = -1;
+	time = current_alloc_time + 1;
+	for (i = 0; i < awe_max_voices; i++) {
+		if ((voices[i].state & condition) &&
+		    (best < 0 || voices[i].time < time)) {
+			best = i;
+			time = voices[i].time;
+		}
+	}
+	/* clear voice */
+	if (best >= 0) {
+		if (voices[best].state != AWE_ST_OFF)
+			awe_terminate(best);
+		awe_voice_init(best, TRUE);
+	}
+
+	return best;
+}
+
+/* search an empty voice.
+   if no empty voice is found, at least terminate a voice
+   */
+static int
+awe_clear_voice(void)
+{
+	int best;
+
+	/* looking for the oldest empty voice */
+	if ((best = search_best_voice(AWE_ST_OFF)) >= 0)
+		return best;
+	if ((best = search_best_voice(AWE_ST_RELEASED)) >= 0)
+		return best;
+	/* looking for the oldest sustained voice */
+	if ((best = search_best_voice(AWE_ST_SUSTAINED)) >= 0)
+		return best;
+
+#ifdef AWE_LOOKUP_MIDI_PRIORITY
+	if (MULTI_LAYER_MODE() && misc_modes[AWE_MD_CHN_PRIOR]) {
+		int ch = -1;
+		int time = current_alloc_time + 1;
+		int i;
+		/* looking for the voices from high channel (except drum ch) */
+		for (i = 0; i < awe_max_voices; i++) {
+			if (IS_DRUM_CHANNEL(voices[i].ch)) continue;
+			if (voices[i].ch < ch) continue;
+			if (voices[i].state != AWE_ST_MARK &&
+			    (voices[i].ch > ch || voices[i].time < time)) {
+				best = i;
+				time = voices[i].time;
+				ch = voices[i].ch;
+			}
+		}
+	}
+#endif
+	if (best < 0)
+		best = search_best_voice(~AWE_ST_MARK);
+
+	if (best >= 0)
+		return best;
+
+	return 0;
+}
+
+
+/* search sample for the specified note & velocity and set it on the voice;
+ * note that voice is the voice index (not channel index)
+ */
+static void
+awe_alloc_one_voice(int voice, int note, int velocity)
+{
+	int ch, nvoices;
+	awe_voice_info *vlist[AWE_MAX_VOICES];
+
+	ch = voices[voice].ch;
+	if (channels[ch].vrec < 0 && channels[ch].def_vrec < 0)
+		awe_set_instr(0, ch, channels[ch].instr);
+
+	nvoices = really_alloc_voices(voices[voice].cinfo->vrec,
+				      voices[voice].cinfo->def_vrec,
+				      &note, velocity, vlist, 0);
+	if (nvoices > 0) {
+		voices[voice].time = ++current_alloc_time;
+		voices[voice].sample = vlist[0]; /* use the first one */
+		voices[voice].layer = 0;
+		voices[voice].note = note;
+		voices[voice].velocity = velocity;
+	}
+}
+
+
+/*----------------------------------------------------------------
+ * sequencer2 functions
+ *----------------------------------------------------------------*/
+
+/* search an empty voice; used by sequencer2 */
+static int
+awe_alloc(int dev, int chn, int note, struct voice_alloc_info *alloc)
+{
+	playing_mode = AWE_PLAY_MULTI2;
+	awe_info.nr_voices = AWE_MAX_CHANNELS;
+	return awe_clear_voice();
+}
+
+
+/* set up voice; used by sequencer2 */
+static void
+awe_setup_voice(int dev, int voice, int chn)
+{
+	struct channel_info *info;
+	if (synth_devs[dev] == NULL ||
+	    (info = &synth_devs[dev]->chn_info[chn]) == NULL)
+		return;
+
+	if (voice < 0 || voice >= awe_max_voices)
+		return;
+
+	DEBUG(2,printk("AWE32: [setup(%d) ch=%d]\n", voice, chn));
+	channels[chn].expression_vol = info->controllers[CTL_EXPRESSION];
+	channels[chn].main_vol = info->controllers[CTL_MAIN_VOLUME];
+	channels[chn].panning =
+		info->controllers[CTL_PAN] * 2 - 128; /* signed 8bit */
+	channels[chn].bender = info->bender_value; /* zero center */
+	channels[chn].bank = info->controllers[CTL_BANK_SELECT];
+	channels[chn].sustained = info->controllers[CTL_SUSTAIN];
+	if (info->controllers[CTL_EXT_EFF_DEPTH]) {
+		FX_SET(&channels[chn].fx, AWE_FX_REVERB,
+		       info->controllers[CTL_EXT_EFF_DEPTH] * 2);
+	}
+	if (info->controllers[CTL_CHORUS_DEPTH]) {
+		FX_SET(&channels[chn].fx, AWE_FX_CHORUS,
+		       info->controllers[CTL_CHORUS_DEPTH] * 2);
+	}
+	awe_set_instr(dev, chn, info->pgm_num);
+}
+
+
+#ifdef CONFIG_AWE32_MIXER
+/*================================================================
+ * AWE32 mixer device control
+ *================================================================*/
+
+static int
+awe_mixer_ioctl(int dev, unsigned int cmd, caddr_t arg)
+{
+	int i, level;
+
+	if (((cmd >> 8) & 0xff) != 'M')
+		return RET_ERROR(EINVAL);
+
+	level = (int)IOCTL_IN(arg);
+	level = ((level & 0xff) + (level >> 8)) / 2;
+	DEBUG(0,printk("AWEMix: cmd=%x val=%d\n", cmd & 0xff, level));
+
+	if (IO_WRITE_CHECK(cmd)) {
+		switch (cmd & 0xff) {
+		case SOUND_MIXER_BASS:
+			awe_bass_level = level * 12 / 100;
+			if (awe_bass_level >= 12)
+				awe_bass_level = 11;
+			awe_equalizer(awe_bass_level, awe_treble_level);
+			break;
+		case SOUND_MIXER_TREBLE:
+			awe_treble_level = level * 12 / 100;
+			if (awe_treble_level >= 12)
+				awe_treble_level = 11;
+			awe_equalizer(awe_bass_level, awe_treble_level);
+			break;
+		case SOUND_MIXER_VOLUME:
+			level = level * 127 / 100;
+			if (level >= 128) level = 127;
+			init_atten = vol_table[level];
+			for (i = 0; i < awe_max_voices; i++)
+				awe_set_voice_vol(i, TRUE);
+			break;
+		}
+	}
+	switch (cmd & 0xff) {
+	case SOUND_MIXER_BASS:
+		level = awe_bass_level * 100 / 24;
+		level = (level << 8) | level;
+		break;
+	case SOUND_MIXER_TREBLE:
+		level = awe_treble_level * 100 / 24;
+		level = (level << 8) | level;
+		break;
+	case SOUND_MIXER_VOLUME:
+		for (i = 127; i > 0; i--) {
+			if (init_atten <= vol_table[i])
+				break;
+		}
+		level = i * 100 / 127;
+		level = (level << 8) | level;
+		break;
+	case SOUND_MIXER_DEVMASK:
+		level = SOUND_MASK_BASS|SOUND_MASK_TREBLE|SOUND_MASK_VOLUME;
+		break;
+	default:
+		level = 0;
+		break;
+	}
+	return IOCTL_OUT(arg, level);
+}
+#endif /* CONFIG_AWE32_MIXER */
+
+
+/*================================================================
+ * initialization of AWE32
+ *================================================================*/
+
+/* intiailize audio channels */
+static void
+awe_init_audio(void)
+{
+	int ch;
+
+	/* turn off envelope engines */
+	for (ch = 0; ch < AWE_MAX_VOICES; ch++) {
+		awe_poke(AWE_DCYSUSV(ch), 0x80);
+	}
+  
+	/* reset all other parameters to zero */
+	for (ch = 0; ch < AWE_MAX_VOICES; ch++) {
+		awe_poke(AWE_ENVVOL(ch), 0);
+		awe_poke(AWE_ENVVAL(ch), 0);
+		awe_poke(AWE_DCYSUS(ch), 0);
+		awe_poke(AWE_ATKHLDV(ch), 0);
+		awe_poke(AWE_LFO1VAL(ch), 0);
+		awe_poke(AWE_ATKHLD(ch), 0);
+		awe_poke(AWE_LFO2VAL(ch), 0);
+		awe_poke(AWE_IP(ch), 0);
+		awe_poke(AWE_IFATN(ch), 0);
+		awe_poke(AWE_PEFE(ch), 0);
+		awe_poke(AWE_FMMOD(ch), 0);
+		awe_poke(AWE_TREMFRQ(ch), 0);
+		awe_poke(AWE_FM2FRQ2(ch), 0);
+		awe_poke_dw(AWE_PTRX(ch), 0);
+		awe_poke_dw(AWE_VTFT(ch), 0);
+		awe_poke_dw(AWE_PSST(ch), 0);
+		awe_poke_dw(AWE_CSL(ch), 0);
+		awe_poke_dw(AWE_CCCA(ch), 0);
+	}
+
+	for (ch = 0; ch < AWE_MAX_VOICES; ch++) {
+		awe_poke_dw(AWE_CPF(ch), 0);
+		awe_poke_dw(AWE_CVCF(ch), 0);
+	}
+}
+
+
+/* initialize DMA address */
+static void
+awe_init_dma(void)
+{
+	awe_poke_dw(AWE_SMALR, 0);
+	awe_poke_dw(AWE_SMARR, 0);
+	awe_poke_dw(AWE_SMALW, 0);
+	awe_poke_dw(AWE_SMARW, 0);
+}
+
+
+/* initialization arrays; from ADIP */
+
+static unsigned short init1[128] = {
+	0x03ff, 0x0030,  0x07ff, 0x0130, 0x0bff, 0x0230,  0x0fff, 0x0330,
+	0x13ff, 0x0430,  0x17ff, 0x0530, 0x1bff, 0x0630,  0x1fff, 0x0730,
+	0x23ff, 0x0830,  0x27ff, 0x0930, 0x2bff, 0x0a30,  0x2fff, 0x0b30,
+	0x33ff, 0x0c30,  0x37ff, 0x0d30, 0x3bff, 0x0e30,  0x3fff, 0x0f30,
+
+	0x43ff, 0x0030,  0x47ff, 0x0130, 0x4bff, 0x0230,  0x4fff, 0x0330,
+	0x53ff, 0x0430,  0x57ff, 0x0530, 0x5bff, 0x0630,  0x5fff, 0x0730,
+	0x63ff, 0x0830,  0x67ff, 0x0930, 0x6bff, 0x0a30,  0x6fff, 0x0b30,
+	0x73ff, 0x0c30,  0x77ff, 0x0d30, 0x7bff, 0x0e30,  0x7fff, 0x0f30,
+
+	0x83ff, 0x0030,  0x87ff, 0x0130, 0x8bff, 0x0230,  0x8fff, 0x0330,
+	0x93ff, 0x0430,  0x97ff, 0x0530, 0x9bff, 0x0630,  0x9fff, 0x0730,
+	0xa3ff, 0x0830,  0xa7ff, 0x0930, 0xabff, 0x0a30,  0xafff, 0x0b30,
+	0xb3ff, 0x0c30,  0xb7ff, 0x0d30, 0xbbff, 0x0e30,  0xbfff, 0x0f30,
+
+	0xc3ff, 0x0030,  0xc7ff, 0x0130, 0xcbff, 0x0230,  0xcfff, 0x0330,
+	0xd3ff, 0x0430,  0xd7ff, 0x0530, 0xdbff, 0x0630,  0xdfff, 0x0730,
+	0xe3ff, 0x0830,  0xe7ff, 0x0930, 0xebff, 0x0a30,  0xefff, 0x0b30,
+	0xf3ff, 0x0c30,  0xf7ff, 0x0d30, 0xfbff, 0x0e30,  0xffff, 0x0f30,
+};
+
+static unsigned short init2[128] = {
+	0x03ff, 0x8030, 0x07ff, 0x8130, 0x0bff, 0x8230, 0x0fff, 0x8330,
+	0x13ff, 0x8430, 0x17ff, 0x8530, 0x1bff, 0x8630, 0x1fff, 0x8730,
+	0x23ff, 0x8830, 0x27ff, 0x8930, 0x2bff, 0x8a30, 0x2fff, 0x8b30,
+	0x33ff, 0x8c30, 0x37ff, 0x8d30, 0x3bff, 0x8e30, 0x3fff, 0x8f30,
+
+	0x43ff, 0x8030, 0x47ff, 0x8130, 0x4bff, 0x8230, 0x4fff, 0x8330,
+	0x53ff, 0x8430, 0x57ff, 0x8530, 0x5bff, 0x8630, 0x5fff, 0x8730,
+	0x63ff, 0x8830, 0x67ff, 0x8930, 0x6bff, 0x8a30, 0x6fff, 0x8b30,
+	0x73ff, 0x8c30, 0x77ff, 0x8d30, 0x7bff, 0x8e30, 0x7fff, 0x8f30,
+
+	0x83ff, 0x8030, 0x87ff, 0x8130, 0x8bff, 0x8230, 0x8fff, 0x8330,
+	0x93ff, 0x8430, 0x97ff, 0x8530, 0x9bff, 0x8630, 0x9fff, 0x8730,
+	0xa3ff, 0x8830, 0xa7ff, 0x8930, 0xabff, 0x8a30, 0xafff, 0x8b30,
+	0xb3ff, 0x8c30, 0xb7ff, 0x8d30, 0xbbff, 0x8e30, 0xbfff, 0x8f30,
+
+	0xc3ff, 0x8030, 0xc7ff, 0x8130, 0xcbff, 0x8230, 0xcfff, 0x8330,
+	0xd3ff, 0x8430, 0xd7ff, 0x8530, 0xdbff, 0x8630, 0xdfff, 0x8730,
+	0xe3ff, 0x8830, 0xe7ff, 0x8930, 0xebff, 0x8a30, 0xefff, 0x8b30,
+	0xf3ff, 0x8c30, 0xf7ff, 0x8d30, 0xfbff, 0x8e30, 0xffff, 0x8f30,
+};
+
+static unsigned short init3[128] = {
+	0x0C10, 0x8470, 0x14FE, 0xB488, 0x167F, 0xA470, 0x18E7, 0x84B5,
+	0x1B6E, 0x842A, 0x1F1D, 0x852A, 0x0DA3, 0x8F7C, 0x167E, 0xF254,
+	0x0000, 0x842A, 0x0001, 0x852A, 0x18E6, 0x8BAA, 0x1B6D, 0xF234,
+	0x229F, 0x8429, 0x2746, 0x8529, 0x1F1C, 0x86E7, 0x229E, 0xF224,
+
+	0x0DA4, 0x8429, 0x2C29, 0x8529, 0x2745, 0x87F6, 0x2C28, 0xF254,
+	0x383B, 0x8428, 0x320F, 0x8528, 0x320E, 0x8F02, 0x1341, 0xF264,
+	0x3EB6, 0x8428, 0x3EB9, 0x8528, 0x383A, 0x8FA9, 0x3EB5, 0xF294,
+	0x3EB7, 0x8474, 0x3EBA, 0x8575, 0x3EB8, 0xC4C3, 0x3EBB, 0xC5C3,
+
+	0x0000, 0xA404, 0x0001, 0xA504, 0x141F, 0x8671, 0x14FD, 0x8287,
+	0x3EBC, 0xE610, 0x3EC8, 0x8C7B, 0x031A, 0x87E6, 0x3EC8, 0x86F7,
+	0x3EC0, 0x821E, 0x3EBE, 0xD208, 0x3EBD, 0x821F, 0x3ECA, 0x8386,
+	0x3EC1, 0x8C03, 0x3EC9, 0x831E, 0x3ECA, 0x8C4C, 0x3EBF, 0x8C55,
+
+	0x3EC9, 0xC208, 0x3EC4, 0xBC84, 0x3EC8, 0x8EAD, 0x3EC8, 0xD308,
+	0x3EC2, 0x8F7E, 0x3ECB, 0x8219, 0x3ECB, 0xD26E, 0x3EC5, 0x831F,
+	0x3EC6, 0xC308, 0x3EC3, 0xB2FF, 0x3EC9, 0x8265, 0x3EC9, 0x8319,
+	0x1342, 0xD36E, 0x3EC7, 0xB3FF, 0x0000, 0x8365, 0x1420, 0x9570,
+};
+
+static unsigned short init4[128] = {
+	0x0C10, 0x8470, 0x14FE, 0xB488, 0x167F, 0xA470, 0x18E7, 0x84B5,
+	0x1B6E, 0x842A, 0x1F1D, 0x852A, 0x0DA3, 0x0F7C, 0x167E, 0x7254,
+	0x0000, 0x842A, 0x0001, 0x852A, 0x18E6, 0x0BAA, 0x1B6D, 0x7234,
+	0x229F, 0x8429, 0x2746, 0x8529, 0x1F1C, 0x06E7, 0x229E, 0x7224,
+
+	0x0DA4, 0x8429, 0x2C29, 0x8529, 0x2745, 0x07F6, 0x2C28, 0x7254,
+	0x383B, 0x8428, 0x320F, 0x8528, 0x320E, 0x0F02, 0x1341, 0x7264,
+	0x3EB6, 0x8428, 0x3EB9, 0x8528, 0x383A, 0x0FA9, 0x3EB5, 0x7294,
+	0x3EB7, 0x8474, 0x3EBA, 0x8575, 0x3EB8, 0x44C3, 0x3EBB, 0x45C3,
+
+	0x0000, 0xA404, 0x0001, 0xA504, 0x141F, 0x0671, 0x14FD, 0x0287,
+	0x3EBC, 0xE610, 0x3EC8, 0x0C7B, 0x031A, 0x07E6, 0x3EC8, 0x86F7,
+	0x3EC0, 0x821E, 0x3EBE, 0xD208, 0x3EBD, 0x021F, 0x3ECA, 0x0386,
+	0x3EC1, 0x0C03, 0x3EC9, 0x031E, 0x3ECA, 0x8C4C, 0x3EBF, 0x0C55,
+
+	0x3EC9, 0xC208, 0x3EC4, 0xBC84, 0x3EC8, 0x0EAD, 0x3EC8, 0xD308,
+	0x3EC2, 0x8F7E, 0x3ECB, 0x0219, 0x3ECB, 0xD26E, 0x3EC5, 0x031F,
+	0x3EC6, 0xC308, 0x3EC3, 0x32FF, 0x3EC9, 0x0265, 0x3EC9, 0x8319,
+	0x1342, 0xD36E, 0x3EC7, 0x33FF, 0x0000, 0x8365, 0x1420, 0x9570,
+};
+
+
+/* send initialization arrays to start up */
+static void
+awe_init_array(void)
+{
+	awe_send_array(init1);
+	awe_wait(1024);
+	awe_send_array(init2);
+	awe_send_array(init3);
+	awe_poke_dw(AWE_HWCF4, 0);
+	awe_poke_dw(AWE_HWCF5, 0x83);
+	awe_poke_dw(AWE_HWCF6, 0x8000);
+	awe_send_array(init4);
+}
+
+/* send an initialization array */
+static void
+awe_send_array(unsigned short *data)
+{
+	int i;
+	unsigned short *p;
+
+	p = data;
+	for (i = 0; i < AWE_MAX_VOICES; i++, p++)
+		awe_poke(AWE_INIT1(i), *p);
+	for (i = 0; i < AWE_MAX_VOICES; i++, p++)
+		awe_poke(AWE_INIT2(i), *p);
+	for (i = 0; i < AWE_MAX_VOICES; i++, p++)
+		awe_poke(AWE_INIT3(i), *p);
+	for (i = 0; i < AWE_MAX_VOICES; i++, p++)
+		awe_poke(AWE_INIT4(i), *p);
+}
+
+
+/*
+ * set up awe32 channels to some known state.
+ */
+
+/* set the envelope & LFO parameters to the default values; see ADIP */
+static void
+awe_tweak_voice(int i)
+{
+	/* set all mod/vol envelope shape to minimum */
+	awe_poke(AWE_ENVVOL(i), 0x8000);
+	awe_poke(AWE_ENVVAL(i), 0x8000);
+	awe_poke(AWE_DCYSUS(i), 0x7F7F);
+	awe_poke(AWE_ATKHLDV(i), 0x7F7F);
+	awe_poke(AWE_ATKHLD(i), 0x7F7F);
+	awe_poke(AWE_PEFE(i), 0);  /* mod envelope height to zero */
+	awe_poke(AWE_LFO1VAL(i), 0x8000); /* no delay for LFO1 */
+	awe_poke(AWE_LFO2VAL(i), 0x8000);
+	awe_poke(AWE_IP(i), 0xE000);	/* no pitch shift */
+	awe_poke(AWE_IFATN(i), 0xFF00);	/* volume to minimum */
+	awe_poke(AWE_FMMOD(i), 0);
+	awe_poke(AWE_TREMFRQ(i), 0);
+	awe_poke(AWE_FM2FRQ2(i), 0);
+}
+
+static void
+awe_tweak(void)
+{
+	int i;
+	/* reset all channels */
+	for (i = 0; i < awe_max_voices; i++)
+		awe_tweak_voice(i);
+}
+
+
+/*
+ *  initializes the FM section of AWE32;
+ *   see Vince Vu's unofficial AWE32 programming guide
+ */
+
+static void
+awe_init_fm(void)
+{
+#ifndef AWE_ALWAYS_INIT_FM
+	/* if no extended memory is on board.. */
+	if (awe_mem_size <= 0)
+		return;
+#endif
+	DEBUG(3,printk("AWE32: initializing FM\n"));
+
+	/* Initialize the last two channels for DRAM refresh and producing
+	   the reverb and chorus effects for Yamaha OPL-3 synthesizer */
+
+	/* 31: FM left channel, 0xffffe0-0xffffe8 */
+	awe_poke(AWE_DCYSUSV(30), 0x80);
+	awe_poke_dw(AWE_PSST(30), 0xFFFFFFE0); /* full left */
+	awe_poke_dw(AWE_CSL(30), 0x00FFFFE8 |
+		    (DEF_FM_CHORUS_DEPTH << 24));
+	awe_poke_dw(AWE_PTRX(30), (DEF_FM_REVERB_DEPTH << 8));
+	awe_poke_dw(AWE_CPF(30), 0);
+	awe_poke_dw(AWE_CCCA(30), 0x00FFFFE3);
+
+	/* 32: FM right channel, 0xfffff0-0xfffff8 */
+	awe_poke(AWE_DCYSUSV(31), 0x80);
+	awe_poke_dw(AWE_PSST(31), 0x00FFFFF0); /* full right */
+	awe_poke_dw(AWE_CSL(31), 0x00FFFFF8 |
+		    (DEF_FM_CHORUS_DEPTH << 24));
+	awe_poke_dw(AWE_PTRX(31), (DEF_FM_REVERB_DEPTH << 8));
+	awe_poke_dw(AWE_CPF(31), 0x8000);
+	awe_poke_dw(AWE_CCCA(31), 0x00FFFFF3);
+
+	/* skew volume & cutoff */
+	awe_poke_dw(AWE_VTFT(30), 0x8000FFFF);
+	awe_poke_dw(AWE_VTFT(31), 0x8000FFFF);
+
+	voices[30].state = AWE_ST_FM;
+	voices[31].state = AWE_ST_FM;
+
+	/* change maximum channels to 30 */
+	awe_max_voices = AWE_NORMAL_VOICES;
+	if (playing_mode == AWE_PLAY_DIRECT)
+		awe_info.nr_voices = awe_max_voices;
+	else
+		awe_info.nr_voices = AWE_MAX_CHANNELS;
+	voice_alloc->max_voice = awe_max_voices;
+}
+
+/*
+ *  AWE32 DRAM access routines
+ */
+
+/* open DRAM write accessing mode */
+static int
+awe_open_dram_for_write(int offset, int channels)
+{
+	int vidx[AWE_NORMAL_VOICES];
+	int i;
+
+	if (channels < 0 || channels >= AWE_NORMAL_VOICES) {
+		channels = AWE_NORMAL_VOICES;
+		for (i = 0; i < AWE_NORMAL_VOICES; i++)
+			vidx[i] = i;
+	} else {
+		for (i = 0; i < channels; i++)
+			vidx[i] = awe_clear_voice();
+	}
+
+	/* use all channels for DMA transfer */
+	for (i = 0; i < channels; i++) {
+		if (vidx[i] < 0) continue;
+		awe_poke(AWE_DCYSUSV(vidx[i]), 0x80);
+		awe_poke_dw(AWE_VTFT(vidx[i]), 0);
+		awe_poke_dw(AWE_CVCF(vidx[i]), 0);
+		awe_poke_dw(AWE_PTRX(vidx[i]), 0x40000000);
+		awe_poke_dw(AWE_CPF(vidx[i]), 0x40000000);
+		awe_poke_dw(AWE_PSST(vidx[i]), 0);
+		awe_poke_dw(AWE_CSL(vidx[i]), 0);
+		awe_poke_dw(AWE_CCCA(vidx[i]), 0x06000000);
+		voices[vidx[i]].state = AWE_ST_DRAM;
+	}
+	/* point channels 31 & 32 to ROM samples for DRAM refresh */
+	awe_poke_dw(AWE_VTFT(30), 0);
+	awe_poke_dw(AWE_PSST(30), 0x1d8);
+	awe_poke_dw(AWE_CSL(30), 0x1e0);
+	awe_poke_dw(AWE_CCCA(30), 0x1d8);
+	awe_poke_dw(AWE_VTFT(31), 0);
+	awe_poke_dw(AWE_PSST(31), 0x1d8);
+	awe_poke_dw(AWE_CSL(31), 0x1e0);
+	awe_poke_dw(AWE_CCCA(31), 0x1d8);
+	voices[30].state = AWE_ST_FM;
+	voices[31].state = AWE_ST_FM;
+
+	/* if full bit is on, not ready to write on */
+	if (awe_peek_dw(AWE_SMALW) & 0x80000000) {
+		for (i = 0; i < channels; i++) {
+			awe_poke_dw(AWE_CCCA(vidx[i]), 0);
+			voices[i].state = AWE_ST_OFF;
+		}
+		return RET_ERROR(ENOSPC);
+	}
+
+	/* set address to write */
+	awe_poke_dw(AWE_SMALW, offset);
+
+	return 0;
+}
+
+/* open DRAM for RAM size detection */
+static void
+awe_open_dram_for_check(void)
+{
+	int i;
+	for (i = 0; i < AWE_NORMAL_VOICES; i++) {
+		awe_poke(AWE_DCYSUSV(i), 0x80);
+		awe_poke_dw(AWE_VTFT(i), 0);
+		awe_poke_dw(AWE_CVCF(i), 0);
+		awe_poke_dw(AWE_PTRX(i), 0x40000000);
+		awe_poke_dw(AWE_CPF(i), 0x40000000);
+		awe_poke_dw(AWE_PSST(i), 0);
+		awe_poke_dw(AWE_CSL(i), 0);
+		if (i & 1) /* DMA write */
+			awe_poke_dw(AWE_CCCA(i), 0x06000000);
+		else	   /* DMA read */
+			awe_poke_dw(AWE_CCCA(i), 0x04000000);
+		voices[i].state = AWE_ST_DRAM;
+	}
+}
+
+
+/* close dram access */
+static void
+awe_close_dram(void)
+{
+	int i;
+	/* wait until FULL bit in SMAxW register be false */
+	for (i = 0; i < 10000; i++) {
+		if (!(awe_peek_dw(AWE_SMALW) & 0x80000000))
+			break;
+		awe_wait(10);
+	}
+
+	for (i = 0; i < AWE_NORMAL_VOICES; i++) {
+		if (voices[i].state == AWE_ST_DRAM) {
+			awe_poke_dw(AWE_CCCA(i), 0);
+			awe_poke(AWE_DCYSUSV(i), 0x807F);
+			voices[i].state = AWE_ST_OFF;
+		}
+	}
+}
+
+
+/*================================================================
+ * detect presence of AWE32 and check memory size
+ *================================================================*/
+
+/* detect emu8000 chip on the specified address; from VV's guide */
+
+static int
+awe_detect_base(int addr)
+{
+	awe_base = addr;
+	if ((awe_peek(AWE_U1) & 0x000F) != 0x000C)
+		return 0;
+	if ((awe_peek(AWE_HWCF1) & 0x007E) != 0x0058)
+		return 0;
+	if ((awe_peek(AWE_HWCF2) & 0x0003) != 0x0003)
+		return 0;
+        DEBUG(0,printk("AWE32 found at %x\n", awe_base));
+	return 1;
+}
+	
+static int
+awe_detect(void)
+{
+	int base;
+	if (awe_base == 0) {
+		for (base = 0x620; base <= 0x680; base += 0x20)
+			if (awe_detect_base(base))
+				return 1;
+		DEBUG(0,printk("AWE32 not found\n"));
+		return 0;
+	}
+	return 1;
+}
+
+
+/*================================================================
+ * check dram size on AWE board
+ *================================================================*/
+
+/* any three numbers you like */
+#define UNIQUE_ID1	0x1234
+#define UNIQUE_ID2	0x4321
+#define UNIQUE_ID3	0xFFFF
+
+static int
+awe_check_dram(void)
+{
+	if (awe_mem_size > 0) {
+		awe_mem_size *= 1024; /* convert to Kbytes */
+		return awe_mem_size;
+	}
+
+	awe_open_dram_for_check();
+
+	awe_mem_size = 0;
+
+	/* set up unique two id numbers */
+	awe_poke_dw(AWE_SMALW, AWE_DRAM_OFFSET);
+	awe_poke(AWE_SMLD, UNIQUE_ID1);
+	awe_poke(AWE_SMLD, UNIQUE_ID2);
+
+	while (awe_mem_size < AWE_MAX_DRAM_SIZE) {
+		awe_wait(2);
+		/* read a data on the DRAM start address */
+		awe_poke_dw(AWE_SMALR, AWE_DRAM_OFFSET);
+		awe_peek(AWE_SMLD); /* discard stale data  */
+		if (awe_peek(AWE_SMLD) != UNIQUE_ID1)
+			break;
+		if (awe_peek(AWE_SMLD) != UNIQUE_ID2)
+			break;
+		awe_mem_size += 32;  /* increment 32 Kbytes */
+		/* Write a unique data on the test address;
+		 * if the address is out of range, the data is written on
+		 * 0x200000(=AWE_DRAM_OFFSET).  Then the two id words are
+		 * broken by this data.
+		 */
+		awe_poke_dw(AWE_SMALW, AWE_DRAM_OFFSET + awe_mem_size*512L);
+		awe_poke(AWE_SMLD, UNIQUE_ID3);
+		awe_wait(2);
+		/* read a data on the just written DRAM address */
+		awe_poke_dw(AWE_SMALR, AWE_DRAM_OFFSET + awe_mem_size*512L);
+		awe_peek(AWE_SMLD); /* discard stale data  */
+		if (awe_peek(AWE_SMLD) != UNIQUE_ID3)
+			break;
+	}
+	awe_close_dram();
+
+	DEBUG(0,printk("AWE32: %d Kbytes memory detected\n", awe_mem_size));
+
+	/* convert to Kbytes */
+	awe_mem_size *= 1024;
+	return awe_mem_size;
+}
+
+
+/*================================================================
+ * chorus and reverb controls; from VV's guide
+ *================================================================*/
+
+/* 5 parameters for each chorus mode; 3 x 16bit, 2 x 32bit */
+static char chorus_defined[AWE_CHORUS_NUMBERS];
+static awe_chorus_fx_rec chorus_parm[AWE_CHORUS_NUMBERS] = {
+	{0xE600, 0x03F6, 0xBC2C ,0x00000000, 0x0000006D}, /* chorus 1 */
+	{0xE608, 0x031A, 0xBC6E, 0x00000000, 0x0000017C}, /* chorus 2 */
+	{0xE610, 0x031A, 0xBC84, 0x00000000, 0x00000083}, /* chorus 3 */
+	{0xE620, 0x0269, 0xBC6E, 0x00000000, 0x0000017C}, /* chorus 4 */
+	{0xE680, 0x04D3, 0xBCA6, 0x00000000, 0x0000005B}, /* feedback */
+	{0xE6E0, 0x044E, 0xBC37, 0x00000000, 0x00000026}, /* flanger */
+	{0xE600, 0x0B06, 0xBC00, 0x0000E000, 0x00000083}, /* short delay */
+	{0xE6C0, 0x0B06, 0xBC00, 0x0000E000, 0x00000083}, /* short delay + feedback */
+};
+
+static int
+awe_load_chorus_fx(awe_patch_info *patch, const char *addr, int count)
+{
+	if (patch->optarg < AWE_CHORUS_PREDEFINED || patch->optarg >= AWE_CHORUS_NUMBERS) {
+		printk("AWE32 Error: illegal chorus mode %d for uploading\n", patch->optarg);
+		return RET_ERROR(EINVAL);
+	}
+	if (count < sizeof(awe_chorus_fx_rec)) {
+		printk("AWE32 Error: too short chorus fx parameters\n");
+		return RET_ERROR(EINVAL);
+	}
+	COPY_FROM_USER(&chorus_parm[patch->optarg], addr, AWE_PATCH_INFO_SIZE,
+		       sizeof(awe_chorus_fx_rec));
+	chorus_defined[patch->optarg] = TRUE;
+	return 0;
+}
+
+static void
+awe_set_chorus_mode(int effect)
+{
+	if (effect < 0 || effect >= AWE_CHORUS_NUMBERS ||
+	    (effect >= AWE_CHORUS_PREDEFINED && !chorus_defined[effect]))
+		return;
+	awe_poke(AWE_INIT3(9), chorus_parm[effect].feedback);
+	awe_poke(AWE_INIT3(12), chorus_parm[effect].delay_offset);
+	awe_poke(AWE_INIT4(3), chorus_parm[effect].lfo_depth);
+	awe_poke_dw(AWE_HWCF4, chorus_parm[effect].delay);
+	awe_poke_dw(AWE_HWCF5, chorus_parm[effect].lfo_freq);
+	awe_poke_dw(AWE_HWCF6, 0x8000);
+	awe_poke_dw(AWE_HWCF7, 0x0000);
+	chorus_mode = effect;
+}
+
+/*----------------------------------------------------------------*/
+
+/* reverb mode settings; write the following 28 data of 16 bit length
+ *   on the corresponding ports in the reverb_cmds array
+ */
+static char reverb_defined[AWE_CHORUS_NUMBERS];
+static awe_reverb_fx_rec reverb_parm[AWE_REVERB_NUMBERS] = {
+{{  /* room 1 */
+	0xB488, 0xA450, 0x9550, 0x84B5, 0x383A, 0x3EB5, 0x72F4,
+	0x72A4, 0x7254, 0x7204, 0x7204, 0x7204, 0x4416, 0x4516,
+	0xA490, 0xA590, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429,
+	0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528,
+}},
+{{  /* room 2 */
+	0xB488, 0xA458, 0x9558, 0x84B5, 0x383A, 0x3EB5, 0x7284,
+	0x7254, 0x7224, 0x7224, 0x7254, 0x7284, 0x4448, 0x4548,
+	0xA440, 0xA540, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429,
+	0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528,
+}},
+{{  /* room 3 */
+	0xB488, 0xA460, 0x9560, 0x84B5, 0x383A, 0x3EB5, 0x7284,
+	0x7254, 0x7224, 0x7224, 0x7254, 0x7284, 0x4416, 0x4516,
+	0xA490, 0xA590, 0x842C, 0x852C, 0x842C, 0x852C, 0x842B,
+	0x852B, 0x842B, 0x852B, 0x842A, 0x852A, 0x842A, 0x852A,
+}},
+{{  /* hall 1 */
+	0xB488, 0xA470, 0x9570, 0x84B5, 0x383A, 0x3EB5, 0x7284,
+	0x7254, 0x7224, 0x7224, 0x7254, 0x7284, 0x4448, 0x4548,
+	0xA440, 0xA540, 0x842B, 0x852B, 0x842B, 0x852B, 0x842A,
+	0x852A, 0x842A, 0x852A, 0x8429, 0x8529, 0x8429, 0x8529,
+}},
+{{  /* hall 2 */
+	0xB488, 0xA470, 0x9570, 0x84B5, 0x383A, 0x3EB5, 0x7254,
+	0x7234, 0x7224, 0x7254, 0x7264, 0x7294, 0x44C3, 0x45C3,
+	0xA404, 0xA504, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429,
+	0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528,
+}},
+{{  /* plate */
+	0xB4FF, 0xA470, 0x9570, 0x84B5, 0x383A, 0x3EB5, 0x7234,
+	0x7234, 0x7234, 0x7234, 0x7234, 0x7234, 0x4448, 0x4548,
+	0xA440, 0xA540, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429,
+	0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528,
+}},
+{{  /* delay */
+	0xB4FF, 0xA470, 0x9500, 0x84B5, 0x333A, 0x39B5, 0x7204,
+	0x7204, 0x7204, 0x7204, 0x7204, 0x72F4, 0x4400, 0x4500,
+	0xA4FF, 0xA5FF, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420,
+	0x8520, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420, 0x8520,
+}},
+{{  /* panning delay */
+	0xB4FF, 0xA490, 0x9590, 0x8474, 0x333A, 0x39B5, 0x7204,
+	0x7204, 0x7204, 0x7204, 0x7204, 0x72F4, 0x4400, 0x4500,
+	0xA4FF, 0xA5FF, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420,
+	0x8520, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420, 0x8520,
+}},
+};
+
+static struct ReverbCmdPair {
+	unsigned short cmd, port;
+} reverb_cmds[28] = {
+  {AWE_INIT1(0x03)}, {AWE_INIT1(0x05)}, {AWE_INIT4(0x1F)}, {AWE_INIT1(0x07)},
+  {AWE_INIT2(0x14)}, {AWE_INIT2(0x16)}, {AWE_INIT1(0x0F)}, {AWE_INIT1(0x17)},
+  {AWE_INIT1(0x1F)}, {AWE_INIT2(0x07)}, {AWE_INIT2(0x0F)}, {AWE_INIT2(0x17)},
+  {AWE_INIT2(0x1D)}, {AWE_INIT2(0x1F)}, {AWE_INIT3(0x01)}, {AWE_INIT3(0x03)},
+  {AWE_INIT1(0x09)}, {AWE_INIT1(0x0B)}, {AWE_INIT1(0x11)}, {AWE_INIT1(0x13)},
+  {AWE_INIT1(0x19)}, {AWE_INIT1(0x1B)}, {AWE_INIT2(0x01)}, {AWE_INIT2(0x03)},
+  {AWE_INIT2(0x09)}, {AWE_INIT2(0x0B)}, {AWE_INIT2(0x11)}, {AWE_INIT2(0x13)},
+};
+
+static int
+awe_load_reverb_fx(awe_patch_info *patch, const char *addr, int count)
+{
+	if (patch->optarg < AWE_REVERB_PREDEFINED || patch->optarg >= AWE_REVERB_NUMBERS) {
+		printk("AWE32 Error: illegal reverb mode %d for uploading\n", patch->optarg);
+		return RET_ERROR(EINVAL);
+	}
+	if (count < sizeof(awe_reverb_fx_rec)) {
+		printk("AWE32 Error: too short reverb fx parameters\n");
+		return RET_ERROR(EINVAL);
+	}
+	COPY_FROM_USER(&reverb_parm[patch->optarg], addr, AWE_PATCH_INFO_SIZE,
+		       sizeof(awe_reverb_fx_rec));
+	reverb_defined[patch->optarg] = TRUE;
+	return 0;
+}
+
+static void
+awe_set_reverb_mode(int effect)
+{
+	int i;
+	if (effect < 0 || effect >= AWE_REVERB_NUMBERS ||
+	    (effect >= AWE_REVERB_PREDEFINED && !reverb_defined[effect]))
+		return;
+	for (i = 0; i < 28; i++)
+		awe_poke(reverb_cmds[i].cmd, reverb_cmds[i].port,
+			 reverb_parm[effect].parms[i]);
+	reverb_mode = effect;
+}
+
+/*================================================================
+ * treble/bass equalizer control
+ *================================================================*/
+
+static unsigned short bass_parm[12][3] = {
+	{0xD26A, 0xD36A, 0x0000}, /* -12 dB */
+	{0xD25B, 0xD35B, 0x0000}, /*  -8 */
+	{0xD24C, 0xD34C, 0x0000}, /*  -6 */
+	{0xD23D, 0xD33D, 0x0000}, /*  -4 */
+	{0xD21F, 0xD31F, 0x0000}, /*  -2 */
+	{0xC208, 0xC308, 0x0001}, /*   0 (HW default) */
+	{0xC219, 0xC319, 0x0001}, /*  +2 */
+	{0xC22A, 0xC32A, 0x0001}, /*  +4 */
+	{0xC24C, 0xC34C, 0x0001}, /*  +6 */
+	{0xC26E, 0xC36E, 0x0001}, /*  +8 */
+	{0xC248, 0xC348, 0x0002}, /* +10 */
+	{0xC26A, 0xC36A, 0x0002}, /* +12 dB */
+};
+
+static unsigned short treble_parm[12][9] = {
+	{0x821E, 0xC26A, 0x031E, 0xC36A, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001}, /* -12 dB */
+	{0x821E, 0xC25B, 0x031E, 0xC35B, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001},
+	{0x821E, 0xC24C, 0x031E, 0xC34C, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001},
+	{0x821E, 0xC23D, 0x031E, 0xC33D, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001},
+	{0x821E, 0xC21F, 0x031E, 0xC31F, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001},
+	{0x821E, 0xD208, 0x031E, 0xD308, 0x021E, 0xD208, 0x831E, 0xD308, 0x0002},
+	{0x821E, 0xD208, 0x031E, 0xD308, 0x021D, 0xD219, 0x831D, 0xD319, 0x0002},
+	{0x821E, 0xD208, 0x031E, 0xD308, 0x021C, 0xD22A, 0x831C, 0xD32A, 0x0002},
+	{0x821E, 0xD208, 0x031E, 0xD308, 0x021A, 0xD24C, 0x831A, 0xD34C, 0x0002},
+	{0x821E, 0xD208, 0x031E, 0xD308, 0x0219, 0xD26E, 0x8319, 0xD36E, 0x0002}, /* +8 (HW default) */
+	{0x821D, 0xD219, 0x031D, 0xD319, 0x0219, 0xD26E, 0x8319, 0xD36E, 0x0002},
+	{0x821C, 0xD22A, 0x031C, 0xD32A, 0x0219, 0xD26E, 0x8319, 0xD36E, 0x0002}, /* +12 dB */
+};
+
+
+/*
+ * set Emu8000 digital equalizer; from 0 to 11 [-12dB - 12dB]
+ */
+static void
+awe_equalizer(int bass, int treble)
+{
+	unsigned short w;
+
+	if (bass < 0 || bass > 11 || treble < 0 || treble > 11)
+		return;
+	awe_bass_level = bass;
+	awe_treble_level = treble;
+	awe_poke(AWE_INIT4(0x01), bass_parm[bass][0]);
+	awe_poke(AWE_INIT4(0x11), bass_parm[bass][1]);
+	awe_poke(AWE_INIT3(0x11), treble_parm[treble][0]);
+	awe_poke(AWE_INIT3(0x13), treble_parm[treble][1]);
+	awe_poke(AWE_INIT3(0x1B), treble_parm[treble][2]);
+	awe_poke(AWE_INIT4(0x07), treble_parm[treble][3]);
+	awe_poke(AWE_INIT4(0x0B), treble_parm[treble][4]);
+	awe_poke(AWE_INIT4(0x0D), treble_parm[treble][5]);
+	awe_poke(AWE_INIT4(0x17), treble_parm[treble][6]);
+	awe_poke(AWE_INIT4(0x19), treble_parm[treble][7]);
+	w = bass_parm[bass][2] + treble_parm[treble][8];
+	awe_poke(AWE_INIT4(0x15), (unsigned short)(w + 0x0262));
+	awe_poke(AWE_INIT4(0x1D), (unsigned short)(w + 0x8362));
+}
+
+
+#endif /* CONFIG_AWE32_SYNTH */