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/* $OpenBSD: ggbusreg.h,v 1.3 1996/05/04 14:15:27 niklas Exp $ */
/*
* Copyright (c) 1994, 1996 Niklas Hallqvist
* 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 Niklas Hallqvist.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#ifndef _GGBUSREG_H_
#define _GGBUSREG_H_
#define GG2_MEMORY_OFFSET (0x20000 - 2 * 0x90000)
#define GG2_STATUS 0x18000
#define GG2_STATUS_ADDR(va) (volatile u_int16_t *)((va) + GG2_STATUS)
#define GG2_GET_STATUS(va) (*GG2_STATUS_ADDR(va))
#define GG2_MASTER 0
#define GG2_WAIT 1
#define GG2_IRQ3 2
#define GG2_IRQ4 3
#define GG2_IRQ5 4
#define GG2_IRQ6 5
#define GG2_IRQ7 6
#define GG2_IRQ9 7
#define GG2_IRQ10 8
#define GG2_IRQ11 9
#define GG2_IRQ12 10
#define GG2_IRQ14 11
#define GG2_IRQ15 12
#define GG2_IRQ_MASK 0x1ffc
#define GG2_GET_INT_STATUS(va) (GG2_GET_STATUS(va) & GG2_IRQ_MASK)
#define GG2_INT_CTRL 0x18002
#define GG2_DISABLE_INTS(va) (*(volatile u_int16_t *)((va) + GG2_INT_CTRL))
#define GG2_ENABLE_INTS(va) (*(volatile u_int16_t *)((va) + GG2_INT_CTRL) = 0)
#define GG2_WAIT_CTRL 0x18004
#define GG2_TOGGLE_WAIT(va) (*(volatile u_int8_t *)((va) + GG2_WAIT_CTRL))
#define GG2_ENABLE_WAIT(va) \
while ((GG2_GET_STATUS(va) & 1 << GG2_WAIT) == 0) GG2_TOGGLE_WAIT(va)
#define GG2_DISABLE_WAIT(va) \
while (GG2_GET_STATUS(va) & 1 << GG2_WAIT) GG2_TOGGLE_WAIT(va)
#endif
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