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essvar.h revision 1.11 
      1 /*	$NetBSD: essvar.h,v 1.11 1999/02/19 16:15:06 mycroft Exp $	*/
      2 /*
      3  * Copyright 1997
      4  * Digital Equipment Corporation. All rights reserved.
      5  *
      6  * This software is furnished under license and may be used and
      7  * copied only in accordance with the following terms and conditions.
      8  * Subject to these conditions, you may download, copy, install,
      9  * use, modify and distribute this software in source and/or binary
     10  * form. No title or ownership is transferred hereby.
     11  *
     12  * 1) Any source code used, modified or distributed must reproduce
     13  *    and retain this copyright notice and list of conditions as
     14  *    they appear in the source file.
     15  *
     16  * 2) No right is granted to use any trade name, trademark, or logo of
     17  *    Digital Equipment Corporation. Neither the "Digital Equipment
     18  *    Corporation" name nor any trademark or logo of Digital Equipment
     19  *    Corporation may be used to endorse or promote products derived
     20  *    from this software without the prior written permission of
     21  *    Digital Equipment Corporation.
     22  *
     23  * 3) This software is provided "AS-IS" and any express or implied
     24  *    warranties, including but not limited to, any implied warranties
     25  *    of merchantability, fitness for a particular purpose, or
     26  *    non-infringement are disclaimed. In no event shall DIGITAL be
     27  *    liable for any damages whatsoever, and in particular, DIGITAL
     28  *    shall not be liable for special, indirect, consequential, or
     29  *    incidental damages or damages for lost profits, loss of
     30  *    revenue or loss of use, whether such damages arise in contract,
     31  *    negligence, tort, under statute, in equity, at law or otherwise,
     32  *    even if advised of the possibility of such damage.
     33  */
     34 
     35 /*
     36 ** @(#) $RCSfile: essvar.h,v $ $Revision: 1.11 $ (SHARK) $Date: 1999/02/19 16:15:06 $
     37 **
     38 **++
     39 **
     40 **  essvar.h
     41 **
     42 **  FACILITY:
     43 **
     44 **	DIGITAL Network Appliance Reference Design (DNARD)
     45 **
     46 **  MODULE DESCRIPTION:
     47 **
     48 **      This module contains the structure definitions and function
     49 **      prototypes for the ESS Technologies 1887/888 sound chip
     50 **      driver.
     51 **
     52 **  AUTHORS:
     53 **
     54 **	Blair Fidler	Software Engineering Australia
     55 **			Gold Coast, Australia.
     56 **
     57 **  CREATION DATE:
     58 **
     59 **	May 12, 1997.
     60 **
     61 **  MODIFICATION HISTORY:
     62 **
     63 **--
     64 */
     65 #define ESS_DAC_PLAY_VOL	0
     66 #define ESS_MIC_PLAY_VOL	1
     67 #define ESS_LINE_PLAY_VOL	2
     68 #define ESS_SYNTH_PLAY_VOL	3
     69 #define ESS_CD_PLAY_VOL		4
     70 #define ESS_AUXB_PLAY_VOL	5
     71 #define ESS_INPUT_CLASS		6
     72 
     73 #define ESS_MASTER_VOL		7
     74 #define ESS_PCSPEAKER_VOL	8
     75 #define ESS_OUTPUT_CLASS	9
     76 
     77 #define ESS_DAC_REC_VOL		10
     78 #define ESS_MIC_REC_VOL		11
     79 #define ESS_LINE_REC_VOL	12
     80 #define ESS_SYNTH_REC_VOL	13
     81 #define ESS_CD_REC_VOL		14
     82 #define ESS_AUXB_REC_VOL	15
     83 #define ESS_MIC_PREAMP		16
     84 #define ESS_RECORD_VOL		17
     85 #define	ESS_RECORD_SOURCE	18
     86 #define ESS_RECORD_CLASS	19
     87 
     88 #define ESS_RECORD_MONITOR	20
     89 #define ESS_MONITOR_CLASS	21
     90 
     91 #define ESS_NDEVS		22
     92 
     93 struct ess_audio_channel
     94 {
     95 	int	drq;			/* DMA channel */
     96 #define IS16BITDRQ(drq) ((drq) >= 4)
     97 	int	irq;			/* IRQ line for this DMA channel */
     98 	int	ist;
     99 	void	*ih;			/* interrupt vectoring */
    100 	u_long	nintr;			/* number of interrupts taken */
    101 	void	(*intr)__P((void*));	/* ISR for DMA complete */
    102 	void	*arg;			/* arg for intr() */
    103 
    104 	/* Status information */
    105 	int	active;			/* boolean: channel in use? */
    106 };
    107 
    108 struct ess_softc
    109 {
    110 	struct	device sc_dev;		/* base device */
    111 	isa_chipset_tag_t sc_ic;
    112 	bus_space_tag_t sc_iot;		/* tag */
    113 	bus_space_handle_t sc_ioh;	/* handle */
    114 
    115 	int	sc_iobase;		/* I/O port base address */
    116 
    117 	u_short	sc_open;		/* reference count of open calls */
    118 
    119 	u_char	gain[ESS_NDEVS][2];	/* kept in input levels */
    120 #define ESS_LEFT 0
    121 #define ESS_RIGHT 1
    122 
    123 	u_int	out_port;		/* output port */
    124 	u_int	in_mask;		/* input ports */
    125 	u_int	in_port;		/* XXX needed for MI interface */
    126 
    127 	u_int	spkr_state;		/* non-null is on */
    128 
    129 	struct ess_audio_channel sc_in; /* audio channel for record */
    130 	struct ess_audio_channel sc_out;/* audio channel for playback */
    131 
    132 	u_int	sc_model;
    133 #define ESS_UNSUPPORTED 0
    134 #define ESS_1888	1
    135 #define ESS_1887	2
    136 #define ESS_888		3
    137 
    138 	u_int	sc_version;		/* Legacy ES688/ES1688 ID */
    139 };
    140 
    141 int	essmatch __P((struct ess_softc *));
    142 void	essattach __P((struct ess_softc *));
    143 
    144