05c62b81bf
the PIC also informs the platform at which IRQ level it can start assigning IPIs, since this can depend on the number of IRQs supported for external interrupts.
65 lines
2.1 KiB
C
65 lines
2.1 KiB
C
/*-
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* Copyright (C) 2002 Benno Rice.
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _POWERPC_OPENPICVAR_H_
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#define _POWERPC_OPENPICVAR_H_
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#define OPENPIC_DEVSTR "OpenPIC Interrupt Controller"
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#define OPENPIC_IRQMAX 256 /* h/w allows more */
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struct openpic_softc {
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device_t sc_dev;
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struct resource *sc_memr;
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bus_space_tag_t sc_bt;
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bus_space_handle_t sc_bh;
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char *sc_version;
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int sc_rid;
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u_int sc_ncpu;
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u_int sc_nirq;
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int sc_psim;
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};
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extern devclass_t openpic_devclass;
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/*
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* Bus-independent attach i/f
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*/
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int openpic_attach(device_t);
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/*
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* PIC interface.
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*/
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void openpic_dispatch(device_t, struct trapframe *);
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void openpic_enable(device_t, u_int, u_int);
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void openpic_eoi(device_t, u_int);
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void openpic_ipi(device_t, u_int);
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void openpic_mask(device_t, u_int);
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void openpic_unmask(device_t, u_int);
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#endif /* _POWERPC_OPENPICVAR_H_ */
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