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/*-
* Copyright 2003 by Peter Grehan. 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. 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.
*
* $FreeBSD: release/9.1.0/sys/powerpc/powermac/hrowpicvar.h 171805 2007-08-11 19:25:32Z marcel $
*/
#ifndef _POWERPC_POWERMAC_HROWPICVAR_H_
#define _POWERPC_POWERMAC_HROWPICVAR_H_
#define HROWPIC_IRQMAX 64
#define HROWPIC_IRQ_REGNUM 32 /* irqs per register */
#define HROWPIC_IRQ_SHIFT 5 /* high or low irq word */
#define HROWPIC_IRQ_MASK ((HROWPIC_IRQMAX-1) >> 1) /* irq bit pos in word */
/*
* Register offsets within bank. There are two identical banks,
* separated by 16 bytes. Interrupts 0->31 are processed in the
* second bank, and 32->63 in the first bank.
*/
#define HPIC_STATUS 0x00 /* active interrupt sources */
#define HPIC_ENABLE 0x04 /* interrupt asserts ppc EXTINT */
#define HPIC_CLEAR 0x08 /* clear int source */
#define HPIC_TRIGGER 0x0c /* edge/level int trigger */
#define HPIC_PRIMARY 1 /* primary register bank */
#define HPIC_SECONDARY 0 /* secondary register bank */
/*
* Convert an interrupt into a prim/sec bank number
*/
#define HPIC_INT_TO_BANK(x) \
(((x) >> HROWPIC_IRQ_SHIFT) ^ 1)
/*
* Convert an interrupt into the bit number within a bank register
*/
#define HPIC_INT_TO_REGBIT(x) \
((x) & HROWPIC_IRQ_MASK)
#define HPIC_1ST_OFFSET 0x10 /* offset to primary reg bank */
struct hrowpic_softc {
device_t sc_dev; /* macio device */
struct resource *sc_rres; /* macio bus resource */
bus_space_tag_t sc_bt; /* macio bus tag/handle */
bus_space_handle_t sc_bh;
int sc_rrid;
uint32_t sc_softreg[2]; /* ENABLE reg copy */
u_int sc_vector[HROWPIC_IRQMAX];
};
#endif /* _POWERPC_POWERMAC_HROWPICVAR_H_ */