1. 根目录:
2. sound
3. pci
4. ice1712
5. delta.h

#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@perex.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,Delta 410},"\
		"{MidiMan M Audio,Audiophile 24/96},"\
		"{Digigram,VX442},"\
		"{Lionstracs,Mediastation},"\
		"{Edirol,DA2496},"

#define ICE1712_SUBDEVICE_DELTA1010	0x121430d6
#define ICE1712_SUBDEVICE_DELTA1010E	0xff1430d6
#define ICE1712_SUBDEVICE_DELTADIO2496	0x121431d6
#define ICE1712_SUBDEVICE_DELTA66	0x121432d6
#define ICE1712_SUBDEVICE_DELTA66E	0xff1432d6
#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
#define ICE1712_SUBDEVICE_EDIROLDA2496	0xce164010

/* 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 */
					/* (writing 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 */
					/* (writing 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 ??? */

/* M-Audio Delta 66 rev. E definitions.
 * Newer revisions of Delta 66 have CS8427 over SPI for
 * S/PDIF transceiver instead of CS8404/CS8414. */
/* 0x01 = DFS */
#define ICE1712_DELTA_66E_CCLK		0x02	/* SPI clock */
#define ICE1712_DELTA_66E_DIN		0x04	/* data input */
#define ICE1712_DELTA_66E_DOUT		0x08	/* data output */
#define ICE1712_DELTA_66E_CS_CS8427	0x10	/* chip select, low = CS8427 */
#define ICE1712_DELTA_66E_CS_CHIP_A	0x20	/* AK4524 #0 */
#define ICE1712_DELTA_66E_CS_CHIP_B	0x40	/* AK4524 #1 */

/* 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 */