/*
* Copyright (c) 1991-1993 Regents of the University of California.
* All rights reserved.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the Computer Systems
* Engineering Group at Lawrence Berkeley Laboratory.
* 4. Neither the name of the University nor of the Laboratory may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* From: Header: sbreg.h,v 1.3 93/07/18 14:07:28 mccanne Exp (LBL)
*/
/*
* SoundBlaster register definitions.
* See "The Developer Kit for Sound Blaster Series, User's Guide" for more
* complete information (available from Creative Labs, Inc.). We refer
* to this documentation as "SBK".
*
* We handle two types of cards: the basic SB version 2.0+, and
* the SB PRO. There are several distinct pieces of the hardware:
*
* joystick port (independent of I/O base address)
* FM synth (stereo on PRO)
* mixer (PRO only)
* DSP (sic)
* CD-ROM (PRO only)
*
* The MIDI capabilities are handled by the DSP unit.
*/
/*
* Address map. The SoundBlaster can be configured (via jumpers) for
* either base I/O address 0x220 or 0x240. The encodings below give
* the offsets to specific SB ports. SBP stands for SB port offset.
*/
#define SBP_LFM_STATUS 0 /* R left FM status port */
#define SBP_LFM_ADDR 0 /* W left FM address register */
#define SBP_LFM_DATA 1 /* RW left FM data port */
#define SBP_RFM_STATUS 2 /* R right FM status port */
#define SBP_RFM_ADDR 2 /* W right FM address register */
#define SBP_RFM_DATA 3 /* RW right FM data port */
#define SBP_FM_STATUS 8 /* R FM status port */
#define SBP_FM_ADDR 8 /* W FM address register */
#define SBP_FM_DATA 9 /* RW FM data port */
#define SBP_MIXER_ADDR 4 /* W mixer address register */
#define SBP_MIXER_DATA 5 /* RW mixer data port */
/*
* 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 simultaneously.
*/
#define SB_DSP_DACWRITE 0x10 /* programmed I/O write to DAC */
#define SB_DSP_WDMA 0x14 /* begin 8-bit linear DMA output */
#define SB_DSP_WDMA_2 0x16 /* begin 2-bit ADPCM DMA output */
#define SB_DSP_WDMA_LOOP 0x1C /* begin 8-bit linear DMA output loop */
#define SB_DSP_ADCREAD 0x20 /* programmed I/O read from ADC */
#define SB_DSP_RDMA 0x24 /* begin 8-bit linear DMA input */
#define SB_DSP_RDMA_LOOP 0x2C /* begin 8-bit linear DMA input loop */
#define SB_MIDI_POLL 0x30 /* initiate a polling read for MIDI */
#define SB_MIDI_READ 0x31 /* read a MIDI byte on recv intr */
#define SB_MIDI_UART_POLL 0x34 /* enter UART mode w/ read polling */
#define SB_MIDI_UART_INTR 0x35 /* enter UART mode w/ read intrs */
#define SB_MIDI_WRITE 0x38 /* write a MIDI byte (non-UART mode) */
#define SB_DSP_TIMECONST 0x40 /* set ADAC time constant */
#define SB_DSP16_OUTPUTRATE 0x41 /* set ADAC output rate */
#define SB_DSP16_INPUTRATE 0x42 /* set ADAC input rate */
#define SB_DSP_BLOCKSIZE 0x48 /* set blk size for high speed xfer */
#define SB_DSP_WDMA_4 0x74 /* begin 4-bit ADPCM DMA output */
#define SB_DSP_WDMA_2_6 0x76 /* begin 2.6-bit ADPCM DMA output */
#define SB_DSP_SILENCE 0x80 /* send a block of silence */
#define SB_DSP_HS_OUTPUT 0x90 /* set high speed mode for wdma */
#define SB_DSP_HS_INPUT 0x98 /* set high speed mode for rdma */
#define SB_DSP_RECORD_MONO 0xA0 /* set mono recording */
#define SB_DSP_RECORD_STEREO 0xA8 /* set stereo recording */
#define SB_DSP16_WDMA_16 0xB6 /* begin 16-bit linear output */
#define SB_DSP16_RDMA_16 0xBE /* begin 16-bit linear input */
#define SB_DSP16_WDMA_8 0xC6 /* begin 8-bit linear output */
#define SB_DSP16_RDMA_8 0xCE /* begin 8-bit linear input */
#define SB_DSP_HALT 0xd0 /* suspend 8-bit DMA */
#define SB_DSP_SPKR_ON 0xd1 /* turn speaker on */
#define SB_DSP_SPKR_OFF 0xd3 /* turn speaker off */
#define SB_DSP_CONT 0xd4 /* continue 8-bit DMA */
#define SB_DSP16_HALT 0xd5 /* suspend 16-bit DMA */
#define SB_DSP16_CONT 0xd6 /* continue 16-bit DMA */
#define SB_DSP_RD_SPKR 0xd8 /* get speaker status */
#define SB_SPKR_OFF 0x00
#define SB_SPKR_ON 0xff
#define SB_DSP_VERSION 0xe1 /* get version number */
/* Some of these come from linux driver (It serves as convenient unencumbered
documentation) */
#define JAZZ16_READ_VER 0xFA /* 0x12 means ProSonic/Jazz16? */
#define JAZZ16_VER_JAZZ 0x12
#define JAZZ16_SET_DMAINTR 0xFB
#define JAZZ16_RECORD_STEREO 0xAC /* 16-bit record */
#define JAZZ16_RECORD_MONO 0xA4 /* 16-bit record */
/*
* These come from Jazz16 chipset documentation, which doesn't include
* full register details, alas. Their source code CD-ROM probably includes
* details, but it has an NDA attached.
*/
#define JAZZ16_DIR_PB 0x10
#define JAZZ16_SINGLE_PB 0x14
#define JAZZ16_SINGLE_ALAW_PB 0x17
#define JAZZ16_CONT_PB 0x1C
#define JAZZ16_CONT_ALAW_PB 0x1F
#define JAZZ16_DIR_PCM_REC 0x20
#define JAZZ16_SINGLE_REC 0x24
#define JAZZ16_SINGLE_ALAW_REC 0x27
#define JAZZ16_CONT_REC 0x2C
#define JAZZ16_CONT_ALAW_REC 0x2F
#define JAZZ16_SINGLE_ADPCM_PB 0x74
#define JAZZ16_SINGLE_MULAW_PB 0x77
#define JAZZ16_CONT_ADPCM_PB 0x7C
#define JAZZ16_SINGLE_ADPCM_REC 0x84
#define JAZZ16_SINGLE_MULAW_REC 0x87
#define JAZZ16_CONT_ADPCM_REC 0x8C
#define JAZZ16_CONT_MULAW_REC 0x8F
#define JAZZ16_CONT_PB_XX 0x90
#define JAZZ16_SINGLE_PB_XX 0x91
#define JAZZ16_SINGLE_REC_XX 0x98
#define JAZZ16_CONT_REC_XX 0x99
/*
* The ADPCM encodings are differential, meaning each sample represents
* a difference to add to a running sum. The initial value is called the
* reference, or reference byte. Any of the ADPCM DMA transfers can specify
* that the given transfer begins with a reference byte by or'ing
* in the bit below.
*/
#define SB_DSP_REFERENCE 1
