diff --git a/sound/oss/ymfpci.h b/sound/oss/ymfpci.h
new file mode 100644
index 0000000..f810a10
--- /dev/null
+++ b/sound/oss/ymfpci.h
@@ -0,0 +1,360 @@
+#ifndef __YMFPCI_H
+#define __YMFPCI_H
+
+/*
+ *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *  Definitions for Yahama YMF724/740/744/754 chips
+ *
+ *
+ *   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.
+ *
+ */
+#include <linux/config.h>
+
+/*
+ *  Direct registers
+ */
+
+/* #define YMFREG(codec, reg)		(codec->port + YDSXGR_##reg) */
+
+#define	YDSXGR_INTFLAG			0x0004
+#define	YDSXGR_ACTIVITY			0x0006
+#define	YDSXGR_GLOBALCTRL		0x0008
+#define	YDSXGR_ZVCTRL			0x000A
+#define	YDSXGR_TIMERCTRL		0x0010
+#define	YDSXGR_TIMERCTRL_TEN		 0x0001
+#define	YDSXGR_TIMERCTRL_TIEN		 0x0002
+#define	YDSXGR_TIMERCOUNT		0x0012
+#define	YDSXGR_SPDIFOUTCTRL		0x0018
+#define	YDSXGR_SPDIFOUTSTATUS		0x001C
+#define	YDSXGR_EEPROMCTRL		0x0020
+#define	YDSXGR_SPDIFINCTRL		0x0034
+#define	YDSXGR_SPDIFINSTATUS		0x0038
+#define	YDSXGR_DSPPROGRAMDL		0x0048
+#define	YDSXGR_DLCNTRL			0x004C
+#define	YDSXGR_GPIOININTFLAG		0x0050
+#define	YDSXGR_GPIOININTENABLE		0x0052
+#define	YDSXGR_GPIOINSTATUS		0x0054
+#define	YDSXGR_GPIOOUTCTRL		0x0056
+#define	YDSXGR_GPIOFUNCENABLE		0x0058
+#define	YDSXGR_GPIOTYPECONFIG		0x005A
+#define	YDSXGR_AC97CMDDATA		0x0060
+#define	YDSXGR_AC97CMDADR		0x0062
+#define	YDSXGR_PRISTATUSDATA		0x0064
+#define	YDSXGR_PRISTATUSADR		0x0066
+#define	YDSXGR_SECSTATUSDATA		0x0068
+#define	YDSXGR_SECSTATUSADR		0x006A
+#define	YDSXGR_SECCONFIG		0x0070
+#define	YDSXGR_LEGACYOUTVOL		0x0080
+#define	YDSXGR_LEGACYOUTVOLL		0x0080
+#define	YDSXGR_LEGACYOUTVOLR		0x0082
+#define	YDSXGR_NATIVEDACOUTVOL		0x0084
+#define	YDSXGR_NATIVEDACOUTVOLL		0x0084
+#define	YDSXGR_NATIVEDACOUTVOLR		0x0086
+#define	YDSXGR_SPDIFOUTVOL		0x0088
+#define	YDSXGR_SPDIFOUTVOLL		0x0088
+#define	YDSXGR_SPDIFOUTVOLR		0x008A
+#define	YDSXGR_AC3OUTVOL		0x008C
+#define	YDSXGR_AC3OUTVOLL		0x008C
+#define	YDSXGR_AC3OUTVOLR		0x008E
+#define	YDSXGR_PRIADCOUTVOL		0x0090
+#define	YDSXGR_PRIADCOUTVOLL		0x0090
+#define	YDSXGR_PRIADCOUTVOLR		0x0092
+#define	YDSXGR_LEGACYLOOPVOL		0x0094
+#define	YDSXGR_LEGACYLOOPVOLL		0x0094
+#define	YDSXGR_LEGACYLOOPVOLR		0x0096
+#define	YDSXGR_NATIVEDACLOOPVOL		0x0098
+#define	YDSXGR_NATIVEDACLOOPVOLL	0x0098
+#define	YDSXGR_NATIVEDACLOOPVOLR	0x009A
+#define	YDSXGR_SPDIFLOOPVOL		0x009C
+#define	YDSXGR_SPDIFLOOPVOLL		0x009E
+#define	YDSXGR_SPDIFLOOPVOLR		0x009E
+#define	YDSXGR_AC3LOOPVOL		0x00A0
+#define	YDSXGR_AC3LOOPVOLL		0x00A0
+#define	YDSXGR_AC3LOOPVOLR		0x00A2
+#define	YDSXGR_PRIADCLOOPVOL		0x00A4
+#define	YDSXGR_PRIADCLOOPVOLL		0x00A4
+#define	YDSXGR_PRIADCLOOPVOLR		0x00A6
+#define	YDSXGR_NATIVEADCINVOL		0x00A8
+#define	YDSXGR_NATIVEADCINVOLL		0x00A8
+#define	YDSXGR_NATIVEADCINVOLR		0x00AA
+#define	YDSXGR_NATIVEDACINVOL		0x00AC
+#define	YDSXGR_NATIVEDACINVOLL		0x00AC
+#define	YDSXGR_NATIVEDACINVOLR		0x00AE
+#define	YDSXGR_BUF441OUTVOL		0x00B0
+#define	YDSXGR_BUF441OUTVOLL		0x00B0
+#define	YDSXGR_BUF441OUTVOLR		0x00B2
+#define	YDSXGR_BUF441LOOPVOL		0x00B4
+#define	YDSXGR_BUF441LOOPVOLL		0x00B4
+#define	YDSXGR_BUF441LOOPVOLR		0x00B6
+#define	YDSXGR_SPDIFOUTVOL2		0x00B8
+#define	YDSXGR_SPDIFOUTVOL2L		0x00B8
+#define	YDSXGR_SPDIFOUTVOL2R		0x00BA
+#define	YDSXGR_SPDIFLOOPVOL2		0x00BC
+#define	YDSXGR_SPDIFLOOPVOL2L		0x00BC
+#define	YDSXGR_SPDIFLOOPVOL2R		0x00BE
+#define	YDSXGR_ADCSLOTSR		0x00C0
+#define	YDSXGR_RECSLOTSR		0x00C4
+#define	YDSXGR_ADCFORMAT		0x00C8
+#define	YDSXGR_RECFORMAT		0x00CC
+#define	YDSXGR_P44SLOTSR		0x00D0
+#define	YDSXGR_STATUS			0x0100
+#define	YDSXGR_CTRLSELECT		0x0104
+#define	YDSXGR_MODE			0x0108
+#define	YDSXGR_SAMPLECOUNT		0x010C
+#define	YDSXGR_NUMOFSAMPLES		0x0110
+#define	YDSXGR_CONFIG			0x0114
+#define	YDSXGR_PLAYCTRLSIZE		0x0140
+#define	YDSXGR_RECCTRLSIZE		0x0144
+#define	YDSXGR_EFFCTRLSIZE		0x0148
+#define	YDSXGR_WORKSIZE			0x014C
+#define	YDSXGR_MAPOFREC			0x0150
+#define	YDSXGR_MAPOFEFFECT		0x0154
+#define	YDSXGR_PLAYCTRLBASE		0x0158
+#define	YDSXGR_RECCTRLBASE		0x015C
+#define	YDSXGR_EFFCTRLBASE		0x0160
+#define	YDSXGR_WORKBASE			0x0164
+#define	YDSXGR_DSPINSTRAM		0x1000
+#define	YDSXGR_CTRLINSTRAM		0x4000
+
+#define YDSXG_AC97READCMD		0x8000
+#define YDSXG_AC97WRITECMD		0x0000
+
+#define PCIR_LEGCTRL			0x40
+#define PCIR_ELEGCTRL			0x42
+#define PCIR_DSXGCTRL			0x48
+#define PCIR_DSXPWRCTRL1		0x4a
+#define PCIR_DSXPWRCTRL2		0x4e
+#define PCIR_OPLADR			0x60
+#define PCIR_SBADR			0x62
+#define PCIR_MPUADR			0x64
+
+#define YDSXG_DSPLENGTH			0x0080
+#define YDSXG_CTRLLENGTH		0x3000
+
+#define YDSXG_DEFAULT_WORK_SIZE		0x0400
+
+#define YDSXG_PLAYBACK_VOICES		64
+#define YDSXG_CAPTURE_VOICES		2
+#define YDSXG_EFFECT_VOICES		5
+
+/* maxinum number of AC97 codecs connected, AC97 2.0 defined 4 */
+#define NR_AC97		2
+
+#define YMF_SAMPF			256	/* Samples per frame @48000 */
+
+/*
+ * The slot/voice control bank (2 of these per voice)
+ */
+
+typedef struct stru_ymfpci_playback_bank {
+	u32 format;
+	u32 loop_default;
+	u32 base;			/* 32-bit address */
+	u32 loop_start;			/* 32-bit offset */
+	u32 loop_end;			/* 32-bit offset */
+	u32 loop_frac;			/* 8-bit fraction - loop_start */
+	u32 delta_end;			/* pitch delta end */
+	u32 lpfK_end;
+	u32 eg_gain_end;
+	u32 left_gain_end;
+	u32 right_gain_end;
+	u32 eff1_gain_end;
+	u32 eff2_gain_end;
+	u32 eff3_gain_end;
+	u32 lpfQ;
+	u32 status;		/* P3: Always 0 for some reason. */
+	u32 num_of_frames;
+	u32 loop_count;
+	u32 start;		/* P3: J. reads this to know where chip is. */
+	u32 start_frac;
+	u32 delta;
+	u32 lpfK;
+	u32 eg_gain;
+	u32 left_gain;
+	u32 right_gain;
+	u32 eff1_gain;
+	u32 eff2_gain;
+	u32 eff3_gain;
+	u32 lpfD1;
+	u32 lpfD2;
+} ymfpci_playback_bank_t;
+
+typedef struct stru_ymfpci_capture_bank {
+	u32 base;			/* 32-bit address (aligned at 4) */
+	u32 loop_end;			/* size in BYTES (aligned at 4) */
+	u32 start;			/* 32-bit offset */
+	u32 num_of_loops;		/* counter */
+} ymfpci_capture_bank_t;
+
+typedef struct stru_ymfpci_effect_bank {
+	u32 base;			/* 32-bit address */
+	u32 loop_end;			/* 32-bit offset */
+	u32 start;			/* 32-bit offset */
+	u32 temp;
+} ymfpci_effect_bank_t;
+
+typedef struct ymf_voice ymfpci_voice_t;
+/*
+ * Throughout the code Yaroslav names YMF unit pointer "codec"
+ * even though it does not correspond to any codec. Must be historic.
+ * We replace it with "unit" over time.
+ * AC97 parts use "codec" to denote a codec, naturally.
+ */
+typedef struct ymf_unit ymfpci_t;
+
+typedef enum {
+	YMFPCI_PCM,
+	YMFPCI_SYNTH,
+	YMFPCI_MIDI
+} ymfpci_voice_type_t;
+
+struct ymf_voice {
+	// ymfpci_t *codec;
+	int number;
+	char use, pcm, synth, midi;	// bool
+	ymfpci_playback_bank_t *bank;
+	struct ymf_pcm *ypcm;
+	dma_addr_t bank_ba;
+};
+
+struct ymf_capture {
+	// struct ymf_unit *unit;
+	int use;
+	ymfpci_capture_bank_t *bank;
+	struct ymf_pcm *ypcm;
+};
+
+struct ymf_unit {
+	u8 rev;				/* PCI revision */
+	void __iomem *reg_area_virt;
+	void *dma_area_va;
+	dma_addr_t dma_area_ba;
+	unsigned int dma_area_size;
+
+	dma_addr_t bank_base_capture;
+	dma_addr_t bank_base_effect;
+	dma_addr_t work_base;
+	unsigned int work_size;
+
+	u32 *ctrl_playback;
+	dma_addr_t ctrl_playback_ba;
+	ymfpci_playback_bank_t *bank_playback[YDSXG_PLAYBACK_VOICES][2];
+	ymfpci_capture_bank_t *bank_capture[YDSXG_CAPTURE_VOICES][2];
+	ymfpci_effect_bank_t *bank_effect[YDSXG_EFFECT_VOICES][2];
+
+	int start_count;
+	int suspended;
+
+	u32 active_bank;
+	struct ymf_voice voices[YDSXG_PLAYBACK_VOICES];
+	struct ymf_capture capture[YDSXG_CAPTURE_VOICES];
+
+	struct ac97_codec *ac97_codec[NR_AC97];
+	u16 ac97_features;
+
+	struct pci_dev *pci;
+
+#ifdef CONFIG_SOUND_YMFPCI_LEGACY
+	/* legacy hardware resources */
+	unsigned int iosynth, iomidi;
+	struct address_info opl3_data, mpu_data;
+#endif
+
+	spinlock_t reg_lock;
+	spinlock_t voice_lock;
+	spinlock_t ac97_lock;
+
+	/* soundcore stuff */
+	int dev_audio;
+	struct semaphore open_sem;
+
+	struct list_head ymf_devs;
+	struct list_head states;	/* List of states for this unit */
+};
+
+struct ymf_dmabuf {
+	dma_addr_t dma_addr;
+	void *rawbuf;
+	unsigned buforder;
+
+	/* OSS buffer management stuff */
+	unsigned numfrag;
+	unsigned fragshift;
+
+	/* our buffer acts like a circular ring */
+	unsigned hwptr;		/* where dma last started */
+	unsigned swptr;		/* where driver last clear/filled */
+	int count;		/* fill count */
+	unsigned total_bytes;	/* total bytes dmaed by hardware */
+
+	wait_queue_head_t wait;	/* put process on wait queue when no more space in buffer */
+
+	/* redundant, but makes calculations easier */
+	unsigned fragsize;
+	unsigned dmasize;	/* Total rawbuf[] size */
+
+	/* OSS stuff */
+	unsigned mapped:1;
+	unsigned ready:1;
+	unsigned ossfragshift;
+	int ossmaxfrags;
+	unsigned subdivision;
+};
+
+struct ymf_pcm_format {
+	int format;			/* OSS format */
+	int rate;			/* rate in Hz */
+	int voices;			/* number of voices */
+	int shift;			/* redundant, computed from the above */
+};
+
+typedef enum {
+	PLAYBACK_VOICE,
+	CAPTURE_REC,
+	CAPTURE_AC97,
+	EFFECT_DRY_LEFT,
+	EFFECT_DRY_RIGHT,
+	EFFECT_EFF1,
+	EFFECT_EFF2,
+	EFFECT_EFF3
+} ymfpci_pcm_type_t;
+
+/* This is variant record, but we hate unions. Little waste on pointers []. */
+struct ymf_pcm {
+	ymfpci_pcm_type_t type;
+	struct ymf_state *state;
+
+	ymfpci_voice_t *voices[2];
+	int capture_bank_number;
+
+	struct ymf_dmabuf dmabuf;
+	int running;
+	int spdif;
+};
+
+/*
+ * "Software" or virtual channel, an instance of opened /dev/dsp.
+ * It may have two physical channels (pcms) for duplex operations.
+ */
+
+struct ymf_state {
+	struct list_head chain;
+	struct ymf_unit *unit;			/* backpointer */
+	struct ymf_pcm rpcm, wpcm;
+	struct ymf_pcm_format format;
+};
+
+#endif				/* __YMFPCI_H */