diff --git a/sound/pci/ice1712/delta.h b/sound/pci/ice1712/delta.h
new file mode 100644
index 0000000..746ebde
--- /dev/null
+++ b/sound/pci/ice1712/delta.h
@@ -0,0 +1,150 @@
+#ifndef __SOUND_DELTA_H
+#define __SOUND_DELTA_H
+
+/*
+ *   ALSA driver for ICEnsemble ICE1712 (Envy24)
+ *
+ *   Lowlevel functions for M-Audio Delta 1010, 44, 66, Dio2496, Audiophile
+ *                          Digigram VX442
+ *
+ *	Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz>
+ *
+ *   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */      
+
+#define DELTA_DEVICE_DESC \
+		"{MidiMan M Audio,Delta 1010},"\
+		"{MidiMan M Audio,Delta 1010LT},"\
+		"{MidiMan M Audio,Delta DiO 2496},"\
+		"{MidiMan M Audio,Delta 66},"\
+		"{MidiMan M Audio,Delta 44},"\
+		"{MidiMan M Audio,Audiophile 24/96},"\
+		"{Digigram,VX442},"\
+		"{Lionstracs,Mediastation},"
+
+#define ICE1712_SUBDEVICE_DELTA1010	0x121430d6
+#define ICE1712_SUBDEVICE_DELTADIO2496	0x121431d6
+#define ICE1712_SUBDEVICE_DELTA66	0x121432d6
+#define ICE1712_SUBDEVICE_DELTA44	0x121433d6
+#define ICE1712_SUBDEVICE_AUDIOPHILE	0x121434d6
+#define ICE1712_SUBDEVICE_DELTA410	0x121438d6
+#define ICE1712_SUBDEVICE_DELTA1010LT	0x12143bd6
+#define ICE1712_SUBDEVICE_VX442		0x12143cd6
+#define ICE1712_SUBDEVICE_MEDIASTATION	0x694c0100
+
+/* entry point */
+extern struct snd_ice1712_card_info snd_ice1712_delta_cards[];
+
+
+/*
+ *  MidiMan M-Audio Delta GPIO definitions
+ */
+
+/* MidiMan M-Audio Delta shared pins */
+#define ICE1712_DELTA_DFS 0x01		/* fast/slow sample rate mode */
+					/* (>48kHz must be 1) */
+#define ICE1712_DELTA_SPDIF_IN_STAT 0x02
+					/* S/PDIF input status */
+					/* 0 = valid signal is present */
+					/* all except Delta44 */
+					/* look to CS8414 datasheet */
+#define ICE1712_DELTA_SPDIF_OUT_STAT_CLOCK 0x04
+					/* S/PDIF output status clock */
+					/* (writting on rising edge - 0->1) */
+					/* all except Delta44 */
+					/* look to CS8404A datasheet */
+#define ICE1712_DELTA_SPDIF_OUT_STAT_DATA 0x08
+					/* S/PDIF output status data */
+					/* all except Delta44 */
+					/* look to CS8404A datasheet */
+/* MidiMan M-Audio DeltaDiO */
+/* 0x01 = DFS */
+/* 0x02 = SPDIF_IN_STAT */
+/* 0x04 = SPDIF_OUT_STAT_CLOCK */
+/* 0x08 = SPDIF_OUT_STAT_DATA */
+#define ICE1712_DELTA_SPDIF_INPUT_SELECT 0x10
+					/* coaxial (0), optical (1) */
+					/* S/PDIF input select*/
+
+/* MidiMan M-Audio Delta1010 */
+/* 0x01 = DFS */
+/* 0x02 = SPDIF_IN_STAT */
+/* 0x04 = SPDIF_OUT_STAT_CLOCK */
+/* 0x08 = SPDIF_OUT_STAT_DATA */
+#define ICE1712_DELTA_WORD_CLOCK_SELECT 0x10
+					/* 1 - clock are taken from S/PDIF input */
+					/* 0 - clock are taken from Word Clock input */
+					/* affected SPMCLKIN pin of Envy24 */
+#define ICE1712_DELTA_WORD_CLOCK_STATUS	0x20
+					/* 0 = valid word clock signal is present */
+
+/* MidiMan M-Audio Delta66 */
+/* 0x01 = DFS */
+/* 0x02 = SPDIF_IN_STAT */
+/* 0x04 = SPDIF_OUT_STAT_CLOCK */
+/* 0x08 = SPDIF_OUT_STAT_DATA */
+#define ICE1712_DELTA_CODEC_SERIAL_DATA 0x10
+					/* AKM4524 serial data */
+#define ICE1712_DELTA_CODEC_SERIAL_CLOCK 0x20
+					/* AKM4524 serial clock */
+					/* (writting on rising edge - 0->1 */
+#define ICE1712_DELTA_CODEC_CHIP_A	0x40
+#define ICE1712_DELTA_CODEC_CHIP_B	0x80
+					/* 1 - select chip A or B */
+
+/* MidiMan M-Audio Delta44 */
+/* 0x01 = DFS */
+/* 0x10 = CODEC_SERIAL_DATA */
+/* 0x20 = CODEC_SERIAL_CLOCK */
+/* 0x40 = CODEC_CHIP_A */
+/* 0x80 = CODEC_CHIP_B */
+
+/* MidiMan M-Audio Audiophile/Delta410 definitions */
+/* thanks to Kristof Pelckmans <Kristof.Pelckmans@antwerpen.be> for Delta410 info */
+/* 0x01 = DFS */
+#define ICE1712_DELTA_AP_CCLK	0x02	/* SPI clock */
+					/* (clocking on rising edge - 0->1) */
+#define ICE1712_DELTA_AP_DIN	0x04	/* data input */
+#define ICE1712_DELTA_AP_DOUT	0x08	/* data output */
+#define ICE1712_DELTA_AP_CS_DIGITAL 0x10 /* CS8427 chip select */
+					/* low signal = select */
+#define ICE1712_DELTA_AP_CS_CODEC 0x20	/* AK4528 (audiophile), AK4529 (Delta410) chip select */
+					/* low signal = select */
+
+/* MidiMan M-Audio Delta1010LT definitions */
+/* thanks to Anders Johansson <ajh@watri.uwa.edu.au> */
+/* 0x01 = DFS */
+#define ICE1712_DELTA_1010LT_CCLK	0x02	/* SPI clock (AK4524 + CS8427) */
+#define ICE1712_DELTA_1010LT_DIN	0x04	/* data input (CS8427) */
+#define ICE1712_DELTA_1010LT_DOUT	0x08	/* data output (AK4524 + CS8427) */
+#define ICE1712_DELTA_1010LT_CS		0x70	/* mask for CS address */
+#define ICE1712_DELTA_1010LT_CS_CHIP_A	0x00	/* AK4524 #0 */
+#define ICE1712_DELTA_1010LT_CS_CHIP_B	0x10	/* AK4524 #1 */
+#define ICE1712_DELTA_1010LT_CS_CHIP_C	0x20	/* AK4524 #2 */
+#define ICE1712_DELTA_1010LT_CS_CHIP_D	0x30	/* AK4524 #3 */
+#define ICE1712_DELTA_1010LT_CS_CS8427	0x40	/* CS8427 */
+#define ICE1712_DELTA_1010LT_CS_NONE	0x50	/* nothing */
+#define ICE1712_DELTA_1010LT_WORDCLOCK 0x80	/* sample clock source: 0 = Word Clock Input, 1 = S/PDIF Input ??? */
+
+/* Digigram VX442 definitions */
+#define ICE1712_VX442_CCLK		0x02	/* SPI clock */
+#define ICE1712_VX442_DIN		0x04	/* data input */
+#define ICE1712_VX442_DOUT		0x08	/* data output */
+#define ICE1712_VX442_CS_DIGITAL	0x10	/* chip select, low = CS8427 */
+#define ICE1712_VX442_CODEC_CHIP_A	0x20	/* select chip A */
+#define ICE1712_VX442_CODEC_CHIP_B	0x40	/* select chip B */
+
+#endif /* __SOUND_DELTA_H */