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/* $OpenBSD: essvar.h,v 1.6 2024/10/22 21:50:02 jsg Exp $ */
/* $NetBSD: essvar.h,v 1.14 1999/03/18 06:03:31 mycroft Exp $ */
/*
* Copyright 1997
* Digital Equipment Corporation. All rights reserved.
*
* This software is furnished under license and may be used and
* copied only in accordance with the following terms and conditions.
* Subject to these conditions, you may download, copy, install,
* use, modify and distribute this software in source and/or binary
* form. No title or ownership is transferred hereby.
*
* 1) Any source code used, modified or distributed must reproduce
* and retain this copyright notice and list of conditions as
* they appear in the source file.
*
* 2) No right is granted to use any trade name, trademark, or logo of
* Digital Equipment Corporation. Neither the "Digital Equipment
* Corporation" name nor any trademark or logo of Digital Equipment
* Corporation may be used to endorse or promote products derived
* from this software without the prior written permission of
* Digital Equipment Corporation.
*
* 3) This software is provided "AS-IS" and any express or implied
* warranties, including but not limited to, any implied warranties
* of merchantability, fitness for a particular purpose, or
* non-infringement are disclaimed. In no event shall DIGITAL be
* liable for any damages whatsoever, and in particular, DIGITAL
* shall not be liable for special, indirect, consequential, or
* incidental damages or damages for lost profits, loss of
* revenue or loss of use, whether such damages arise in contract,
* negligence, tort, under statute, in equity, at law or otherwise,
* even if advised of the possibility of such damage.
*/
/*
** @(#) $RCSfile: essvar.h,v $ $Revision: 1.6 $ (SHARK) $Date: 2024/10/22 21:50:02 $
**
**++
**
** essvar.h
**
** FACILITY:
**
** DIGITAL Network Appliance Reference Design (DNARD)
**
** MODULE DESCRIPTION:
**
** This module contains the structure definitions and function
** prototypes for the ESS Technologies 1887/888 sound chip
** driver.
**
** AUTHORS:
**
** Blair Fidler Software Engineering Australia
** Gold Coast, Australia.
**
** CREATION DATE:
**
** May 12, 1997.
**
** MODIFICATION HISTORY:
**
**--
*/
#define ESS_DAC_PLAY_VOL 0
#define ESS_MIC_PLAY_VOL 1
#define ESS_LINE_PLAY_VOL 2
#define ESS_SYNTH_PLAY_VOL 3
#define ESS_CD_PLAY_VOL 4
#define ESS_AUXB_PLAY_VOL 5
#define ESS_INPUT_CLASS 6
#define ESS_MASTER_VOL 7
#define ESS_PCSPEAKER_VOL 8
#define ESS_OUTPUT_CLASS 9
#define ESS_RECORD_MONITOR 10
#define ESS_MONITOR_CLASS 11
#define ESS_RECORD_VOL 12
#define ESS_RECORD_SOURCE 13
#define ESS_RECORD_CLASS 14
#define ESS_1788_NDEVS 15
#define ESS_DAC_REC_VOL 15
#define ESS_MIC_REC_VOL 16
#define ESS_LINE_REC_VOL 17
#define ESS_SYNTH_REC_VOL 18
#define ESS_CD_REC_VOL 19
#define ESS_AUXB_REC_VOL 20
#define ESS_MIC_PREAMP 21
#define ESS_1888_NDEVS 22
#define ESS_MAX_NDEVS 22
struct ess_audio_channel {
int drq; /* DMA channel */
#define IS16BITDRQ(drq) ((drq) >= 4)
int irq; /* IRQ line for this DMA channel */
int ist;
void *ih; /* interrupt vectoring */
u_long nintr; /* number of interrupts taken */
void (*intr)(void *); /* ISR for DMA complete */
void *arg; /* arg for intr() */
/* Status information */
int active; /* boolean: channel in use? */
/* Polling state */
int polled; /* 1 if channel is polled */
int dmapos; /* last DMA pointer */
int buffersize; /* size of DMA buffer */
/* (The following is only needed due to the stupid block interface.) */
int dmacount; /* leftover partial block */
int blksize; /* current block size */
};
struct ess_softc {
struct device sc_dev; /* base device */
struct device *sc_isa;
isa_chipset_tag_t sc_ic;
bus_space_tag_t sc_iot; /* tag */
bus_space_handle_t sc_ioh; /* handle */
struct timeout sc_tmo1, sc_tmo2;
int sc_iobase; /* I/O port base address */
u_short sc_open; /* reference count of open calls */
int ndevs;
u_char gain[ESS_MAX_NDEVS][2]; /* kept in input levels */
#define ESS_LEFT 0
#define ESS_RIGHT 1
u_int out_port; /* output port */
u_int in_mask; /* input ports */
u_int in_port; /* XXX needed for MI interface */
u_int spkr_state; /* non-null is on */
struct ess_audio_channel sc_audio1; /* audio channel for record */
struct ess_audio_channel sc_audio2; /* audio channel for playback */
u_int sc_model;
#define ESS_UNSUPPORTED 0
#define ESS_1888 1
#define ESS_1887 2
#define ESS_888 3
#define ESS_1788 4
#define ESS_1869 5
#define ESS_1879 6
#define ESS_1868 7
#define ESS_1878 8
u_int sc_version; /* Legacy ES688/ES1688 ID */
};
int essmatch(struct ess_softc *);
void essattach(struct ess_softc *);
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