135 lines
5.7 KiB
C
135 lines
5.7 KiB
C
/* $NetBSD: tms9914reg.h,v 1.1 2003/06/02 03:55:04 gmcgarry Exp $ */
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/*-
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Gregory McGarry.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#define TMS9914_IOSIZE 8
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/*
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* Direct-access Registers (write only)
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*/
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#define TMS9914_IMR0 0 /* (W) interrupt mask 0 */
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#define IMR0_MAC 0x01 /* my address change */
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#define IMR0_RLC 0x02 /* remote/local address change */
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#define IMR0_SPAS 0x04 /* serial poll active state */
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#define IMR0_END 0x08 /* EOI or EOS */
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#define IMR0_BO 0x10 /* byte out */
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#define IMR0_BI 0x20 /* byte in */
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#define TMS9914_IMR1 1 /* (W) interrupt mask 1 */
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#define IMR1_IFC 0x01 /* IFC asserted */
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#define IMR1_SRQ 0x02 /* SRQ asserted */
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#define IMR1_MA 0x04 /* my address */
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#define IMR1_DCAS 0x08 /* device clear active state */
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#define IMR1_APT 0x10 /* address pass-through */
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#define IMR1_UCG 0x20 /* unrecognised command */
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#define IMR1_ERR 0x40 /* data transmission error */
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#define IMR1_GET 0x80 /* group execute trigger */
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#define TMS9914_AUXCR 3 /* (W) auxiliary command */
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#define TMS9914_ADDR 4 /* (W) address register */
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#define ADDR_DAT 0x20
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#define ADDR_DAL 0x40
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#define ADDR_EDPA 0x80
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#define TMS9914_SPMR 5 /* (W) serial poll register */
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#define TMS9914_PPR 6 /* (W) parallel poll */
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#define TMS9914_CDOR 7 /* (W) data-out register */
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/*
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* Direct-access Registers (read only)
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*/
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#define TMS9914_ISR0 0 /* (R) interrupt status 0 */
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#define ISR0_MAC 0x01 /* my address change */
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#define ISR0_RLC 0x02 /* remote/local address change */
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#define ISR0_SPAS 0x04 /* serial poll active state */
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#define ISR0_END 0x08 /* EOI or EOS */
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#define ISR0_BO 0x10 /* byte out */
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#define ISR0_BI 0x20 /* byte in */
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#define TMS9914_ISR1 1 /* (R) interrupt status 1 */
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#define ISR1_IFC 0x01 /* IFC asserted */
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#define ISR1_SRQ 0x02 /* SRQ asserted */
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#define ISR1_MA 0x04 /* my address */
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#define ISR1_DCAS 0x08 /* device clear active state */
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#define ISR1_APT 0x10 /* address pass-through */
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#define ISR1_UCG 0x20 /* unrecognised command */
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#define ISR1_ERR 0x40 /* data transmission error */
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#define ISR1_GET 0x80 /* group execute trigger */
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#define TMS9914_ADSR 2 /* (R) address status */
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#define ADSR_ULPA 0x01 /* store last address LSB */
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#define ADSR_TADS 0x02 /* talker addressed */
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#define ADSR_LADS 0x04 /* listener addressed */
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#define ADSR_TPAS 0x08 /* talker primary address state */
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#define ADSR_LPAS 0x10 /* listener primary address state */
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#define ADSR_ATN 0x20 /* ATN active */
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#define ADSR_LLO 0x40 /* LLO active */
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#define ADSR_REM 0x80 /* REM active */
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#define TMS9914_CPTR 6 /* (R) command pass-through */
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#define TMS9914_DIR 7 /* (R) data-in register */
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/*
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* Auxiliary Commands
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*
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* Two basic type of commands are implemented: pulsed and static.
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* Static commands enable (set) or disable (clear) chip features.
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* Pulsed commands stay active for one clock pulse.
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*
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*/
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/* pulsed commands */
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#define AUXCMD_RHDF 0x02 /* release RFD holdoff */
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#define AUXCMD_NBAF 0x05 /* new byte available false */
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#define AUXCMD_SEOI 0x08 /* send EOI with next byte */
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#define AUXCMD_GTS 0x0b /* go to standby (clear ATN line) */
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#define AUXCMD_TCA 0x0c /* take control (async) */
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#define AUXCMD_TCS 0x0d /* take control (sync) */
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/* static commands */
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#define AUXCMD_SET 0x80
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#define AUXCMD_CLEAR 0x00
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#define AUXCMD_SWRST 0x00 /* Software reset */
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#define AUXCMD_HDFA 0x03 /* holdoff on all data */
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#define AUXCMD_HDFE 0x04 /* holdoff on EOI data only */
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#define AUXCMD_RTL 0x07 /* return to local */
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#define AUXCMD_LON 0x09 /* listen only */
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#define AUXCMD_TON 0x0a /* talk only */
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#define AUXCMD_RPP 0x0e /* request parallel poll */
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#define AUXCMD_SIC 0x0f /* IFC (interface clear) line */
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#define AUXCMD_SRE 0x10 /* REN (remote enable) line */
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#define AUXCMD_DAI 0x13 /* interrupt disable */
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#define AUXCMD_STD1 0x15 /* 1200ns T1 delay */
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#define AUXCMD_SHDW 0x16 /* shadow handshake */
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#define AUXCMD_VSTD1 0x17 /* 600ns T1 delay */
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