/* $NetBSD: essreg.h,v 1.17 2014/08/16 13:01:33 nakayama 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: essreg.h,v $ $Revision: 1.17 $ (SHARK) $Date: 2014/08/16 13:01:33 $
**
**++
**
** essreg.h
**
** FACILITY:
**
** DIGITAL Network Appliance Reference Design (DNARD)
**
** MODULE DESCRIPTION:
**
** This module contains the constant definitions for the device
** registers on the ESS Technologies 1888/1887/888 sound chip.
**
** AUTHORS:
**
** Blair Fidler Software Engineering Australia
** Gold Coast, Australia.
**
** CREATION DATE:
**
** March 10, 1997.
**
** MODIFICATION HISTORY:
**
**--
*/
/*
* DSP commands. This unit handles MIDI and audio capabilities.
* The DSP can be reset, data/commands can be read or written to it,
* and it can generate interrupts. Interrupts are generated for MIDI
* input or DMA completion. They seem to have neglected the fact
* that it would be nice to have a MIDI transmission complete interrupt.
* Worse, the DMA engine is half-duplex. This means you need to do
* (timed) programmed I/O to be able to record and play simulataneously.
*/
#define ESS_ACMD_DAC8WRITE 0x10 /* direct-mode 8-bit DAC write */
#define ESS_ACMD_DAC16WRITE 0x11 /* direct-mode 16-bit DAC write */
#define ESS_ACMD_DMA8OUT 0x14 /* 8-bit linear DMA output */
#define ESS_ACMD_DMA16OUT 0x15 /* 16-bit linear DMA output */
#define ESS_ACMD_AUTODMA8OUT 0x1C /* auto-init 8-bit linear DMA output */
#define ESS_ACMD_AUTODMA16OUT 0x1D /* auto-init 16-bit linear DMA output */
#define ESS_ACMD_ADC8READ 0x20 /* direct-mode 8-bit ADC read */
#define ESS_ACMD_ADC16READ 0x21 /* direct-mode 16-bit ADC read */
#define ESS_ACMD_DMA8IN 0x24 /* 8-bit linear DMA input */
#define ESS_ACMD_DMA16IN 0x25 /* 16-bit linear DMA input */
#define ESS_ACMD_AUTODMA8IN 0x2C /* auto-init 8-bit linear DMA input */
#define ESS_ACMD_AUTODMA16IN 0x2D /* auto-init 16-bit linear DMA input */
#define ESS_ACMD_SETTIMECONST1 0x40 /* set time constant (1MHz base) */
#define ESS_ACMD_SETTIMECONST15 0x41 /* set time constant (1.5MHz base) */
#define ESS_ACMD_SETFILTER 0x42 /* set filter clock independently */
#define ESS_ACMD_BLOCKSIZE 0x48 /* set blk size for high speed xfer */
#define ESS_ACMD_DMA4OUT 0x74 /* 4-bit ADPCM DMA output */
#define ESS_ACMD_DMA4OUTREF 0x75 /* 4-bit ADPCM DMA output with ref */
#define ESS_ACMD_DMA2_6OUT 0x76 /* 2.6-bit ADPCM DMA output */
#define ESS_ACMD_DMA2_6OUTREF 0x77 /* 2.6-bit ADPCM DMA output with ref */
#define ESS_ACMD_DMA2OUT 0x7A /* 2-bit ADPCM DMA output */
#define ESS_ACMD_DMA2OUTREF 0x7B /* 2-bit ADPCM DMA output with ref */
#define ESS_ACMD_SILENCEOUT 0x80 /* output a block of silence */
#define ESS_ACMD_START_AUTO_OUT 0x90 /* start auto-init 8-bit DMA output */
#define ESS_ACMD_START_OUT 0x91 /* start 8-bit DMA output */
#define ESS_ACMD_START_AUTO_IN 0x98 /* start auto-init 8-bit DMA input */
#define ESS_ACMD_START_IN 0x99 /* start 8-bit DMA input */
#define ESS_XCMD_SAMPLE_RATE 0xA1 /* sample rate for Audio1 channel */
#define ESS_XCMD_FILTER_CLOCK 0xA2 /* filter clock for Audio1 channel*/
#define ESS_XCMD_XFER_COUNTLO 0xA4 /* */
#define ESS_XCMD_XFER_COUNTHI 0xA5 /* */
#define ESS_XCMD_AUDIO_CTRL 0xA8 /* */
#define ESS_AUDIO_CTRL_MONITOR 0x08 /* 0=disable/1=enable */
#define ESS_AUDIO_CTRL_MONO 0x02 /* 0=disable/1=enable */
#define ESS_AUDIO_CTRL_STEREO 0x01 /* 0=disable/1=enable */
#define ESS_XCMD_PREAMP_CTRL 0xA9 /* */
#define ESS_PREAMP_CTRL_ENABLE 0x04
#define ESS_XCMD_IRQ_CTRL 0xB1 /* legacy audio interrupt control */
#define ESS_IRQ_CTRL_INTRA 0x00
#define ESS_IRQ_CTRL_INTRB 0x04
#define ESS_IRQ_CTRL_INTRC 0x08
#define ESS_IRQ_CTRL_INTRD 0x0C
#define ESS_IRQ_CTRL_MASK 0x10
#define ESS_IRQ_CTRL_EXT 0x40
#define ESS_XCMD_DRQ_CTRL 0xB2 /* audio DRQ control */
#define ESS_DRQ_CTRL_DRQA 0x04
#define ESS_DRQ_CTRL_DRQB 0x08
#define ESS_DRQ_CTRL_DRQC 0x0C
#define ESS_DRQ_CTRL_PU 0x10
#define ESS_DRQ_CTRL_EXT 0x40
#define ESS_XCMD_VOLIN_CTRL 0xB4 /* stereo input volume control */
#define ESS_1788_XCMD_AUDIO_CTRL0 0xB6
#define ESS_CTRL0_SIGNED 0x00
#define ESS_CTRL0_UNSIGNED 0x80
#define ESS_XCMD_AUDIO1_CTRL1 0xB7 /* */
#define ESS_AUDIO1_CTRL1_FIFO_CONNECT 0x80 /* 1=connected */
#define ESS_AUDIO1_CTRL1_FIFO_MONO 0x40 /* 0=stereo/1=mono */
#define ESS_AUDIO1_CTRL1_FIFO_SIGNED 0x20 /* 0=unsigned/1=signed */
#define ESS_AUDIO1_CTRL1_FIFO_STEREO 0x08 /* 0=mono/1=stereo */
#define ESS_AUDIO1_CTRL1_FIFO_SIZE 0x04 /* 0=8-bit/1=16-bit */
#define ESS_XCMD_AUDIO1_CTRL2 0xB8 /* */
#define ESS_AUDIO1_CTRL2_FIFO_ENABLE 0x01 /* 0=disable/1=enable */
#define ESS_AUDIO1_CTRL2_DMA_READ 0x02 /* 0=DMA write/1=DMA read */
#define ESS_AUDIO1_CTRL2_AUTO_INIT 0x04
#define ESS_AUDIO1_CTRL2_ADC_ENABLE 0x08 /* 0=DAC mode/1=ADC mode */
#define ESS_XCMD_DEMAND_CTRL 0xB9 /* */
#define ESS_DEMAND_CTRL_SINGLE 0x00 /* 1-byte transfers */
#define ESS_DEMAND_CTRL_DEMAND_2 0x01 /* 2-byte transfers */
#define ESS_DEMAND_CTRL_DEMAND_4 0x02 /* 4-byte transfers */
#define ESS_ACMD_ENABLE_EXT 0xC6 /* enable ESS extension commands */
#define ESS_ACMD_DISABLE_EXT 0xC7 /* enable ESS extension commands */
#define ESS_ACMD_PAUSE_DMA 0xD0 /* pause DMA */
#define ESS_ACMD_ENABLE_SPKR 0xD1 /* enable Audio1 DAC input to mixer */
#define ESS_ACMD_DISABLE_SPKR 0xD3 /* disable Audio1 DAC input to mixer */
#define ESS_ACMD_CONT_DMA 0xD4 /* continue paused DMA */
#define ESS_ACMD_SPKR_STATUS 0xD8 /* return Audio1 DAC status: */
#define ESS_SPKR_OFF 0x00
#define ESS_SPKR_ON 0xFF
#define ESS_ACMD_VERSION 0xE1 /* get version number */
#define ESS_ACMD_LEGACY_ID 0xE7 /* get legacy ES688/ES1688 ID bytes */
#define ESS_MINRATE 4000
#define ESS_MAXRATE 44100
/*
* Macros to detect valid hardware configuration data.
*/
#define ESS_BASE_VALID(base) ((base) == 0x220 || (base) == 0x230 || (base) == 0x240 || (base) == 0x250)
#define ESS_IRQ1_VALID(irq) ((irq) == 5 || (irq) == 7 || (irq) == 9 || (irq) == 10)
#define ESS_IRQ2_VALID(irq) ((irq) == 15)
#define ESS_IRQ12_VALID(irq) ((irq) == 5 || (irq) == 7 || (irq) == 9 || (irq) == 10 || (irq) == 15)
#define ESS_DRQ1_VALID(chan) ((chan) == 0 || (chan) == 1 || (chan) == 3)
#define ESS_DRQ2_VALID(chan) ((chan) == 0 || (chan) == 1 || (chan) == 3 || (chan) == 5)
#define ESS_USE_AUDIO1(model) ((model) <= ESS_1879)
#define ESS_IS_ES18X9(model) (((model) == ESS_1869) || ((model) == ESS_1879))
/*
* Macros to manipulate gain values
*/
#define ESS_6BIT_GAIN(x) ((x) & 0xfc)
#define ESS_4BIT_GAIN(x) ((x) & 0xf0)
#define ESS_3BIT_GAIN(x) (((x) & 0xe0) >> 1)
#define ESS_STEREO_GAIN(l, r) ((l) | ((r) >> 4))
#define ESS_MONO_GAIN(x) ((x) >> 4)
#define ESS_SPATIAL_GAIN(x) ((x) >> 2)
#ifdef ESS_AMODE_LOW
/*
* Registers used to configure ESS chip via Read Key Sequence
*/
#define ESS_CONFIG_KEY_BASE 0x229
#define ESS_CONFIG_KEY_PORTS 3
#else
/*
* Registers used to configure ESS chip via System Control Register (SCR)
*/
#define ESS_SCR_ACCESS_BASE 0xF9
#define ESS_SCR_ACCESS_PORTS 3
#define ESS_SCR_LOCK 0
#define ESS_SCR_UNLOCK 2
#define ESS_SCR_BASE 0xE0
#define ESS_SCR_PORTS 2
#define ESS_SCR_INDEX 0
#define ESS_SCR_DATA 1
/*
* Bit definitions for SCR
*/
#define ESS_SCR_AUDIO_ENABLE 0x04
#define ESS_SCR_AUDIO_220 0x00
#define ESS_SCR_AUDIO_230 0x01
#define ESS_SCR_AUDIO_240 0x02
#define ESS_SCR_AUDIO_250 0x03
#endif
/*****************************************************************************/
/* DSP Timeout Definitions */
/*****************************************************************************/
#define ESS_READ_TIMEOUT 5000 /* number of times to try a read, 5ms*/
#define ESS_WRITE_TIMEOUT 5000 /* number of times to try a write, 5ms */
#define ESS_NPORT 16
#define ESS_DSP_RESET 0x06
#define ESS_RESET_EXT 0x03 /* reset and use second DMA */
#define ESS_MAGIC 0xAA /* response to successful reset */
#define ESS_DSP_READ 0x0A
#define ESS_DSP_WRITE 0x0C
#define ESS_CLEAR_INTR 0x0E
#define ESS_FIFO_WRITE 0x0F
#define ESS_DSP_RW_STATUS 0x0C
#define ESS_DSP_WRITE_BUSY 0x80
#define ESS_DSP_READ_READY 0x40
#define ESS_DSP_READ_FULL 0x20 /* FIFO full */
#define ESS_DSP_READ_EMPTY 0x10 /* FIFO empty */
#define ESS_DSP_READ_HALF 0x08 /* FIFO half-empty */
#define ESS_DSP_READ_IRQ 0x04 /* IRQ generated */
#define ESS_DSP_READ_HALF_IRQ 0x02 /* " from half-empty flag change */
#define ESS_DSP_READ_OFLOW 0x01 /* " from DMA counter overflow */
#define ESS_DSP_READ_ANYIRQ (ESS_DSP_READ_IRQ | \
ESS_DSP_READ_HALF_IRQ | \
ESS_DSP_READ_OFLOW)
#define ESS_MIX_REG_SELECT 0x04
#define ESS_MIX_REG_DATA 0x05
#define ESS_MIX_RESET 0x00 /* mixer reset port and value */
/*
* ESS Mixer registers
*/
#define ESS_MREG_VOLUME_VOICE 0x14
#define ESS_MREG_VOLUME_MIC 0x1A
#define ESS_MREG_ADC_SOURCE 0x1C
#define ESS_SOURCE_MIC 0x00
#define ESS_SOURCE_CD 0x02
#define ESS_SOURCE_LINE 0x06
#define ESS_SOURCE_MIXER 0x07
#define ESS_MREG_VOLUME_MASTER 0x32
#define ESS_MREG_VOLUME_SYNTH 0x36
#define ESS_MREG_VOLUME_CD 0x38
#define ESS_MREG_VOLUME_AUXB 0x3A
#define ESS_MREG_VOLUME_PCSPKR 0x3C
#define ESS_MREG_VOLUME_LINE 0x3E
#define ESS_MREG_SPATIAL_CTRL 0x50
#define ESS_SPATIAL_CTRL_MONO 0x02
#define ESS_SPATIAL_CTRL_RESET 0x04
#define ESS_SPATIAL_CTRL_ENABLE 0x08
#define ESS_MREG_SPATIAL_LEVEL 0x52
#define ESS_MREG_VOLUME_LEFT 0x60
#define ESS_MREG_VOLUME_RIGHT 0x62
#define ESS_VOLUME_MUTE 0x40
#define ESS_MREG_VOLUME_CTRL 0x64
#define ESS_MREG_SAMPLE_RATE 0x70 /* sample rate for Audio2 channel */
#define ESS_MREG_MODE 0x71 /* mode for Audio2 channel */
#define ESS_MODE_FM_MIX 0x01
#define ESS_MODE_ASYNC_MODE 0x02
#define ESS_MODE_SCF1_BYPASS 0x04
#define ESS_MODE_SCF2_BYPASS 0x08
#define ESS_MODE_4X_MODE 0x10
#define ESS_MODE_NEWREG 0x20
#define ESS_MREG_FILTER_CLOCK 0x72 /* filter clock for Audio2 channel */
#define ESS_MREG_XFER_COUNTLO 0x74 /* low-byte of DMA transfer size */
#define ESS_MREG_XFER_COUNTHI 0x76 /* high-byte of DMA transfer size */
#define ESS_MREG_AUDIO2_CTRL1 0x78 /* control register 1 for Audio2: */
#define ESS_AUDIO2_CTRL1_SINGLE 0x00
#define ESS_AUDIO2_CTRL1_DEMAND_2 0x40
#define ESS_AUDIO2_CTRL1_DEMAND_4 0x80
#define ESS_AUDIO2_CTRL1_DEMAND_8 0xC0
#define ESS_AUDIO2_CTRL1_XFER_SIZE 0x20 /* 0=8-bit/1=16-bit */
#define ESS_AUDIO2_CTRL1_AUTO_INIT 0x10
#define ESS_AUDIO2_CTRL1_FIFO_ENABLE 0x02 /* 0=disable/1=enable */
#define ESS_AUDIO2_CTRL1_DAC_ENABLE 0x01 /* 0=disable/1=enable */
#define ESS_MREG_AUDIO2_CTRL2 0x7A /* control register 2 for Audio2: */
#define ESS_AUDIO2_CTRL2_FIFO_SIZE 0x01 /* 0=8-bit/1=16-bit */
#define ESS_AUDIO2_CTRL2_CHANNELS 0x02 /* 0=mono/1=stereo */
#define ESS_AUDIO2_CTRL2_FIFO_SIGNED 0x04 /* 0=unsigned/1=signed */
#define ESS_AUDIO2_CTRL2_DMA_ENABLE 0x20 /* 0=disable/1=enable */
#define ESS_AUDIO2_CTRL2_IRQ2_ENABLE 0x40
#define ESS_AUDIO2_CTRL2_IRQ_LATCH 0x80
#define ESS_MREG_AUDIO2_CTRL3 0x7D
#define ESS_AUDIO2_CTRL3_DRQA 0x00
#define ESS_AUDIO2_CTRL3_DRQB 0x01
#define ESS_AUDIO2_CTRL3_DRQC 0x02
#define ESS_AUDIO2_CTRL3_DRQD 0x03
#define ESS_AUDIO2_CTRL3_DRQ_PD 0x04
#define ESS_MREG_INTR_ST 0x7F
#define ESS_IS_SELECT_IRQ 0x01
#define ESS_IS_ES1888 0x00
#define ESS_IS_INTRA 0x02
#define ESS_IS_INTRB 0x04
#define ESS_IS_INTRC 0x06
#define ESS_IS_INTRD 0x08
#define ESS_IS_INTRE 0x0A