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/* $OpenBSD: gusreg.h,v 1.7 2022/01/09 05:42:42 jsg Exp $ */
/* $NetBSD: gusreg.h,v 1.6 1997/10/09 07:57:22 jtc Exp $ */
/*-
* Copyright (c) 1996 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Ken Hornstein and John Kohl.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Register definitions of Gravis UltraSound card
*/
/*
* MIDI control registers. Essentially a MC6850 UART. Note the MC6850's
* "feature" of having read-only and write-only registers combined on one
* address.
*/
#define GUS_IOH4_OFFSET 0x100
#define GUS_NPORT4 2
#define GUS_MIDI_CONTROL (0x100-GUS_IOH4_OFFSET)
#define GUS_MIDI_STATUS (0x100-GUS_IOH4_OFFSET)
#define GUS_MIDI_READ (0x101-GUS_IOH4_OFFSET)
#define GUS_MIDI_WRITE (0x101-GUS_IOH4_OFFSET)
/*
* Joystick interface - note this is an absolute address, NOT an offset from
* the GUS base address.
*/
#define GUS_JOYSTICK 0x201
/*
* GUS control registers
*/
#define GUS_MIX_CONTROL 0x000
#define GUS_IRQ_STATUS 0x006
#define GUS_TIMER_CONTROL 0x008
#define GUS_TIMER_DATA 0x009
#define GUS_REG_CONTROL 0x00f /* rev 3.4 or later only: select reg
at 2XB */
#define GUS_REG_NORMAL 0x00 /* IRQ/DMA as usual */
#define GUS_REG_IRQCTL 0x05 /* IRQ ctl: write 0 to clear IRQ state */
#define GUS_REG_JUMPER 0x06 /* jumper control: */
#define GUS_JUMPER_MIDIEN 0x02 /* bit: enable MIDI ports */
#define GUS_JUMPER_JOYEN 0x04 /* bit: enable joystick ports */
#define GUS_IRQ_CONTROL 0x00b
#define GUS_DMA_CONTROL 0x00b
#define GUS_IRQCTL_CONTROL 0x00b
#define GUS_JUMPER_CONTROL 0x00b
#define GUS_NPORT1 16
#define GUS_IOH2_OFFSET 0x102
#define GUS_VOICE_SELECT (0x102-GUS_IOH2_OFFSET)
#define GUS_REG_SELECT (0x103-GUS_IOH2_OFFSET)
#define GUS_DATA_LOW (0x104-GUS_IOH2_OFFSET)
#define GUS_DATA_HIGH (0x105-GUS_IOH2_OFFSET)
/* GUS_MIXER_SELECT 106 */
#define GUS_DRAM_DATA (0x107-GUS_IOH2_OFFSET)
#define GUS_NPORT2 6
/*
* GUS on-board global registers
*/
#define GUSREG_DMA_CONTROL 0x41
#define GUSREG_DMA_START 0x42
#define GUSREG_DRAM_ADDR_LOW 0x43
#define GUSREG_DRAM_ADDR_HIGH 0x44
#define GUSREG_TIMER_CONTROL 0x45
#define GUSREG_TIMER1_COUNT 0x46 /* count-up, then interrupt, 80usec */
#define GUSREG_TIMER2_COUNT 0x47 /* count-up, then interrupt, 320usec */
#define GUSREG_SAMPLE_FREQ 0x48 /* 9878400/(16*(rate+2)) */
#define GUSREG_SAMPLE_CONTROL 0x49
#define GUSREG_JOYSTICK_TRIM 0x4b
#define GUSREG_RESET 0x4c
/*
* GUS voice specific registers (some of which aren't!). Add 0x80 to these
* registers for reads
*/
#define GUSREG_READ 0x80
#define GUSREG_VOICE_CNTL 0x00
#define GUSREG_FREQ_CONTROL 0x01
#define GUSREG_START_ADDR_HIGH 0x02
#define GUSREG_START_ADDR_LOW 0x03
#define GUSREG_END_ADDR_HIGH 0x04
#define GUSREG_END_ADDR_LOW 0x05
#define GUSREG_VOLUME_RATE 0x06
#define GUSREG_START_VOLUME 0x07
#define GUSREG_END_VOLUME 0x08
#define GUSREG_CUR_VOLUME 0x09
#define GUSREG_CUR_ADDR_HIGH 0x0a
#define GUSREG_CUR_ADDR_LOW 0x0b
#define GUSREG_PAN_POS 0x0c
#define GUSREG_VOLUME_CONTROL 0x0d
#define GUSREG_ACTIVE_VOICES 0x0e /* voice-independent:set voice count */
#define GUSREG_IRQ_STATUS 0x8f /* voice-independent */
#define GUS_PAN_FULL_LEFT 0x0
#define GUS_PAN_FULL_RIGHT 0xf
/*
* GUS Bitmasks for reset register
*/
#define GUSMASK_MASTER_RESET 0x01
#define GUSMASK_DAC_ENABLE 0x02
#define GUSMASK_IRQ_ENABLE 0x04
/*
* Bitmasks for IRQ status port
*/
#define GUSMASK_IRQ_MIDIXMIT 0x01 /* MIDI transmit IRQ */
#define GUSMASK_IRQ_MIDIRCVR 0x02 /* MIDI received IRQ */
#define GUSMASK_IRQ_TIMER1 0x04 /* timer 1 IRQ */
#define GUSMASK_IRQ_TIMER2 0x08 /* timer 2 IRQ */
#define GUSMASK_IRQ_RESERVED 0x10 /* Reserved (set to 0) */
#define GUSMASK_IRQ_VOICE 0x20 /* Wavetable IRQ (any voice) */
#define GUSMASK_IRQ_VOLUME 0x40 /* Volume ramp IRQ (any voc) */
#define GUSMASK_IRQ_DMATC 0x80 /* DMA transfer complete */
/*
* Bitmasks for sampling control register
*/
#define GUSMASK_SAMPLE_START 0x01 /* start sampling */
#define GUSMASK_SAMPLE_STEREO 0x02 /* mono or stereo */
#define GUSMASK_SAMPLE_DATA16 0x04 /* 16-bit DMA channel */
#define GUSMASK_SAMPLE_IRQ 0x20 /* enable IRQ */
#define GUSMASK_SAMPLE_DMATC 0x40 /* DMA transfer complete */
#define GUSMASK_SAMPLE_INVBIT 0x80 /* invert MSbit */
/*
* Bitmasks for IRQ status register (different than IRQ status _port_ - the
* register is internal to the GUS)
*/
#define GUSMASK_WIRQ_VOLUME 0x40 /* Flag for volume interrupt */
#define GUSMASK_WIRQ_VOICE 0x80 /* Flag for voice interrupt */
#define GUSMASK_WIRQ_VOICEMASK 0x1f /* Bits holding voice # */
/*
* GUS bitmasks for built-in mixer control (separate from the ICS or CS chips)
*/
#define GUSMASK_LINE_IN 0x01 /* 0=enable */
#define GUSMASK_LINE_OUT 0x02 /* 0=enable */
#define GUSMASK_MIC_IN 0x04 /* 1=enable */
#define GUSMASK_LATCHES 0x08 /* enable IRQ latches */
#define GUSMASK_COMBINE 0x10 /* combine Ch 1 IRQ & Ch 2 (MIDI) */
#define GUSMASK_MIDI_LOOPBACK 0x20 /* MIDI loopback */
#define GUSMASK_CONTROL_SEL 0x40 /* Select control register */
#define GUSMASK_BOTH_RQ 0x40 /* Combine both RQ lines */
/*
* GUS bitmasks for DMA control
*/
#define GUSMASK_DMA_ENABLE 0x01 /* Enable DMA transfer */
#define GUSMASK_DMA_READ 0x02 /* 1=read, 0=write */
#define GUSMASK_DMA_WRITE 0x00 /* for consistency */
#define GUSMASK_DMA_WIDTH 0x04 /* Data transfer width */
#define GUSMASK_DMA_R0 0x00 /* Various DMA speeds */
#define GUSMASK_DMA_R1 0x08
#define GUSMASK_DMA_R2 0x10
#define GUSMASK_DMA_R3 0x18
#define GUSMASK_DMA_IRQ 0x20 /* Enable DMA to IRQ */
#define GUSMASK_DMA_IRQPEND 0x40 /* DMA IRQ pending */
#define GUSMASK_DMA_DATA_SIZE 0x40 /* 0=8 bit, 1=16 bit */
#define GUSMASK_DMA_INVBIT 0x80 /* invert high bit */
/*
* GUS bitmasks for voice control
*/
#define GUSMASK_VOICE_STOPPED 0x01 /* The voice is stopped */
#define GUSMASK_STOP_VOICE 0x02 /* Force voice to stop */
#define GUSMASK_DATA_SIZE16 0x04 /* 1=16 bit, 0=8 bit data */
#define GUSMASK_LOOP_ENABLE 0x08 /* Loop voice at end */
#define GUSMASK_VOICE_BIDIR 0x10 /* Bi-directional looping */
#define GUSMASK_VOICE_IRQ 0x20 /* Enable the voice IRQ */
#define GUSMASK_INCR_DIR 0x40 /* Direction of address incr */
#define GUSMASK_VOICE_IRQPEND 0x80 /* Pending IRQ for voice */
/*
* Bitmasks for volume control
*/
#define GUSMASK_VOLUME_STOPPED 0x01 /* Volume ramping stopped */
#define GUSMASK_STOP_VOLUME 0x02 /* Manually stop volume */
#define GUSMASK_VOICE_ROLL 0x04 /* Roll over/low water condition */
#define GUSMASK_VOLUME_LOOP 0x08 /* Volume ramp looping */
#define GUSMASK_VOLUME_BIDIR 0x10 /* Bi-dir volume looping */
#define GUSMASK_VOLUME_IRQ 0x20 /* IRQ on end of volume ramp */
#define GUSMASK_VOLUME_DIR 0x40 /* Direction of volume ramp */
#define GUSMASK_VOLUME_IRQPEND 0x80 /* Pending volume IRQ */
#define MIDI_RESET 0x03
/*
* ICS Mixer registers
*/
#define GUS_IOH3_OFFSET 0x506
#define GUS_NPORT3 1
#define GUS_MIXER_SELECT (0x506-GUS_IOH3_OFFSET) /* read=board rev, wr=mixer */
#define GUS_BOARD_REV (0x506-GUS_IOH3_OFFSET)
#define GUS_MIXER_DATA (0x106-GUS_IOH2_OFFSET) /* data for mixer control */
#define GUSMIX_CHAN_MIC ICSMIX_CHAN_0
#define GUSMIX_CHAN_LINE ICSMIX_CHAN_1
#define GUSMIX_CHAN_CD ICSMIX_CHAN_2
#define GUSMIX_CHAN_DAC ICSMIX_CHAN_3
#define GUSMIX_CHAN_MASTER ICSMIX_CHAN_5
/*
* Codec/Mixer registers
*/
#define GUS_MAX_CODEC_BASE 0x10C
#define GUS_DAUGHTER_CODEC_BASE 0x530
#define GUS_DAUGHTER_CODEC_BASE2 0x604
#define GUS_DAUGHTER_CODEC_BASE3 0xE80
#define GUS_DAUGHTER_CODEC_BASE4 0xF40
#define GUS_CODEC_SELECT 0
#define GUS_CODEC_DATA 1
#define GUS_CODEC_STATUS 2
#define GUS_CODEC_PIO 3
#define GUS_MAX_CTRL 0x106
#define GUS_MAX_BASEBITS 0xf /* sets middle nibble of 3X6 */
#define GUS_MAX_RECCHAN16 0x10 /* 0=8bit DMA read, 1=16bit DMA read */
#define GUS_MAX_PLAYCHAN16 0x20 /* 0=8bit, 1=16bit */
#define GUS_MAX_CODEC_ENABLE 0x40 /* 0=disable, 1=enable */
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