130 lines
4.8 KiB
C
130 lines
4.8 KiB
C
/* $NetBSD: auxreg.h,v 1.7 1997/05/17 17:52:52 pk Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* 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 University of
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* California, Lawrence Berkeley Laboratory.
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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 University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)auxreg.h 8.1 (Berkeley) 6/11/93
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*/
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/*
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* Sun-4c Auxiliary I/O register. This register talks to the floppy
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* (if it exists) and the front-panel LED.
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*/
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#define AUXIO4C_MB1 0xf0 /* must be set on write */
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#define AUXIO4C_FHD 0x20 /* floppy: high density (unreliable?)*/
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#define AUXIO4C_FDC 0x10 /* floppy: diskette was changed */
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#define AUXIO4C_FDS 0x08 /* floppy: drive select */
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#define AUXIO4C_FTC 0x04 /* floppy: drives Terminal Count pin */
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#define AUXIO4C_FEJ 0x02 /* floppy: eject disk */
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#define AUXIO4C_LED 0x01 /* front panel LED */
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#define AUXIO4M_MB1 0xc0 /* must be set on write? */
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#define AUXIO4M_FHD 0x20 /* floppy: high density (unreliable?)*/
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#define AUXIO4M_LTE 0x08 /* link-test enable */
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#define AUXIO4M_MMX 0x04 /* Monitor/Mouse MUX; what is it? */
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#define AUXIO4M_FTC 0x02 /* floppy: drives Terminal Count pin */
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#define AUXIO4M_LED 0x01 /* front panel LED */
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/*
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* We use a fixed virtual address for the register because we use it for
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* timing short sections of code (via external hardware attached to the LED).
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*/
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#define AUXIO4C_REG ((volatile u_char *)(AUXREG_VA + 3))
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#define AUXIO4M_REG ((volatile u_char *)(AUXREG_VA))
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#define LED_ON do { \
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if (CPU_ISSUN4M) { \
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auxio_regval |= AUXIO4M_LED; \
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*AUXIO4M_REG = auxio_regval; \
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} else { \
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auxio_regval |= AUXIO4C_LED; \
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*AUXIO4C_REG = auxio_regval; \
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} \
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} while(0)
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#define LED_OFF do { \
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if (CPU_ISSUN4M) { \
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auxio_regval &= ~AUXIO4M_LED; \
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*AUXIO4M_REG = auxio_regval; \
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} else { \
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auxio_regval &= ~AUXIO4C_LED; \
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*AUXIO4C_REG = auxio_regval; \
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} \
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} while(0)
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#define LED_FLIP do { \
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if (CPU_ISSUN4M) { \
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auxio_regval ^= AUXIO4M_LED; \
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*AUXIO4M_REG = auxio_regval; \
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} else { \
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auxio_regval ^= AUXIO4C_LED; \
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*AUXIO4C_REG = auxio_regval; \
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} \
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} while(0)
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#define FTC_FLIP do { \
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if (CPU_ISSUN4M) { \
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auxio_regval |= AUXIO4M_FTC; \
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*AUXIO4M_REG = auxio_regval; \
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*AUXIO4M_REG = *AUXIO4M_REG | AUXIO4M_MB1 | AUXIO4M_FTC;\
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} else { \
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auxio_regval |= AUXIO4C_FTC; \
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*AUXIO4C_REG = auxio_regval; \
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DELAY(10); \
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auxio_regval &= ~AUXIO4C_FTC; \
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*AUXIO4C_REG = auxio_regval; \
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} \
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} while(0)
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#define AUXIO_BITS ( \
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CPU_ISSUN4M \
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? "\20\6FHD\4LTE\3MMX\2FTC\1LED" \
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: "\20\6FHD\5FDC\4FDS\3FTC\2FEJ\1LED" \
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)
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#ifndef _LOCORE
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volatile u_char *auxio_reg; /* Copy of AUXIO_REG */
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u_char auxio_regval;
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unsigned int auxregbisc __P((int, int));
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#endif
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