739af9bcb5
the MacIO chip and PSIM's IOBus. Bus-specific drivers should use the identify method to attach themselves to nexus so interrupt can be allocated before the h/w is probed. The 'early attach' routine in openpic is used for this stage of boot. When h/w is probed, the openpic can be attached properly. It will enable interrupts allocated prior to this.
69 lines
2.3 KiB
C
69 lines
2.3 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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char *sc_version;
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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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struct rman sc_rman;
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bus_space_tag_t sc_bt;
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bus_space_handle_t sc_bh;
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u_int sc_hwprobed;
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u_int sc_early_done;
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device_t sc_altdev;
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u_char sc_irqrsv[OPENPIC_IRQMAX]; /* pre-h/w reservation */
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};
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/*
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* Bus-independent attach i/f
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*/
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int openpic_early_attach(device_t);
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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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struct resource *openpic_allocate_intr(device_t, device_t, int *,
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u_long, u_int);
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int openpic_setup_intr(device_t, device_t,
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struct resource *, int, driver_intr_t, void *,
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void **);
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int openpic_teardown_intr(device_t, device_t,
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struct resource *, void *);
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int openpic_release_intr(device_t dev, device_t, int,
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struct resource *res);
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#endif /* _POWERPC_OPENPICVAR_H_ */
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