hrowpicvar.h revision 139825
1168515Sgshapiro/*- 2168515Sgshapiro * Copyright 2003 by Peter Grehan. All rights reserved. 3168515Sgshapiro * 4168515Sgshapiro * Redistribution and use in source and binary forms, with or without 5244833Sgshapiro * modification, are permitted provided that the following conditions 6168515Sgshapiro * are met: 7168515Sgshapiro * 1. Redistributions of source code must retain the above copyright 8168515Sgshapiro * notice, this list of conditions and the following disclaimer. 9168515Sgshapiro * 2. Redistributions in binary form must reproduce the above copyright 10168515Sgshapiro * notice, this list of conditions and the following disclaimer in the 11168515Sgshapiro * documentation and/or other materials provided with the distribution. 12168515Sgshapiro * 3. The name of the author may not be used to endorse or promote products 13168515Sgshapiro * derived from this software without specific prior written permission. 14168515Sgshapiro * 15168515Sgshapiro * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16168515Sgshapiro * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17168515Sgshapiro * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18168515Sgshapiro * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19168515Sgshapiro * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20168515Sgshapiro * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21168515Sgshapiro * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22168515Sgshapiro * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23168515Sgshapiro * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24168515Sgshapiro * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25168515Sgshapiro * SUCH DAMAGE. 26168515Sgshapiro * 27168515Sgshapiro * $FreeBSD: head/sys/powerpc/powermac/hrowpicvar.h 139825 2005-01-07 02:29:27Z imp $ 28168515Sgshapiro */ 29168515Sgshapiro 30168515Sgshapiro#ifndef _POWERPC_POWERMAC_HROWPICVAR_H_ 31168515Sgshapiro#define _POWERPC_POWERMAC_HROWPICVAR_H_ 32168515Sgshapiro 33168515Sgshapiro#define HROWPIC_IRQMAX 64 34168515Sgshapiro#define HROWPIC_IRQ_REGNUM 32 /* irqs per register */ 35168515Sgshapiro#define HROWPIC_IRQ_SHIFT 5 /* high or low irq word */ 36168515Sgshapiro#define HROWPIC_IRQ_MASK ((HROWPIC_IRQMAX-1) >> 1) /* irq bit pos in word */ 37168515Sgshapiro 38168515Sgshapiro/* 39168515Sgshapiro * Register offsets within bank. There are two identical banks, 40168515Sgshapiro * separated by 16 bytes. Interrupts 0->31 are processed in the 41168515Sgshapiro * second bank, and 32->63 in the first bank. 42168515Sgshapiro */ 43168515Sgshapiro#define HPIC_STATUS 0x00 /* active interrupt sources */ 44168515Sgshapiro#define HPIC_ENABLE 0x04 /* interrupt asserts ppc EXTINT */ 45168515Sgshapiro#define HPIC_CLEAR 0x08 /* clear int source */ 46168515Sgshapiro#define HPIC_TRIGGER 0x0c /* edge/level int trigger */ 47168515Sgshapiro 48168515Sgshapiro#define HPIC_PRIMARY 1 /* primary register bank */ 49168515Sgshapiro#define HPIC_SECONDARY 0 /* secondary register bank */ 50168515Sgshapiro 51168515Sgshapiro/* 52168515Sgshapiro * Convert an interrupt into a prim/sec bank number 53168515Sgshapiro */ 54168515Sgshapiro#define HPIC_INT_TO_BANK(x) \ 55168515Sgshapiro (((x) >> HROWPIC_IRQ_SHIFT) ^ 1) 56168515Sgshapiro 57168515Sgshapiro/* 58168515Sgshapiro * Convert an interrupt into the bit number within a bank register 59168515Sgshapiro */ 60168515Sgshapiro#define HPIC_INT_TO_REGBIT(x) \ 61168515Sgshapiro ((x) & HROWPIC_IRQ_MASK) 62168515Sgshapiro 63168515Sgshapiro#define HPIC_1ST_OFFSET 0x10 /* offset to primary reg bank */ 64168515Sgshapiro 65168515Sgshapiro 66168515Sgshapirostruct hrowpic_softc { 67168515Sgshapiro struct rman sc_rman; /* resource mgr for IRQs */ 68168515Sgshapiro u_int32_t sc_irq[HROWPIC_IRQMAX]; /* allocated IRQ flags */ 69168515Sgshapiro u_int32_t sc_softreg[2]; /* ENABLE reg copy */ 70168515Sgshapiro device_t sc_maciodev; /* macio device */ 71168515Sgshapiro struct resource *sc_memr; /* macio bus resource */ 72168515Sgshapiro bus_space_tag_t sc_bt; /* macio bus tag/handle */ 73168515Sgshapiro bus_space_handle_t sc_bh; 74168515Sgshapiro}; 75168515Sgshapiro 76168515Sgshapiro 77168515Sgshapiro#endif /* _POWERPC_POWERMAC_HROWPICVAR_H_ */ 78168515Sgshapiro