138 lines
4.3 KiB
C
138 lines
4.3 KiB
C
/* $NetBSD: picvar.h,v 1.7 2010/04/24 09:39:57 kiyohara Exp $ */
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/*-
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* Copyright (c) 2007 Michael Lorenz
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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 THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: picvar.h,v 1.7 2010/04/24 09:39:57 kiyohara Exp $");
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#ifndef PIC_VAR_H
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#define PIC_VAR_H
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#include <machine/intr.h>
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struct pic_ops {
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void *pic_cookie; /* private stuff / hardware info */
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int pic_intrbase; /* global number of the 1st IRQ we handle */
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int pic_numintrs; /* how many IRQs do we handle? */
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/*
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* all functions that take an IRQ number as argument need a local
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* interrupt number
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*/
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void (*pic_enable_irq)(struct pic_ops *, int, int);
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void (*pic_reenable_irq)(struct pic_ops *, int, int);
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void (*pic_disable_irq)(struct pic_ops *, int);
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int (*pic_get_irq)(struct pic_ops *, int); /* PIC_GET_* */
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void (*pic_ack_irq)(struct pic_ops *, int); /* IRQ numbner */
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/* IRQ number, type, priority */
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void (*pic_establish_irq)(struct pic_ops *, int, int, int);
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/* finish setup after CPUs are attached */
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void (*pic_finish_setup)(struct pic_ops *);
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char pic_name[16];
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};
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struct intr_source {
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int is_type;
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int is_level;
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int is_hwirq;
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imask_t is_mask;
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struct intrhand *is_hand;
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struct pic_ops *is_pic;
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struct evcnt is_ev;
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char is_source[16];
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};
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#define OPENPIC_MAX_ISUS 4
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#define OPENPIC_FLAG_DIST (1<<0)
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#define OPENPIC_FLAG_LE (1<<1)
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struct openpic_ops {
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struct pic_ops pic;
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uint32_t flags;
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int nrofisus;
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volatile unsigned char **isu;
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uint8_t *irq_per;
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};
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struct i8259_ops {
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struct pic_ops pic;
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uint32_t pending_events;
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uint32_t enable_mask;
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uint32_t irqs;
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};
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/*
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* add a pic, fill in pic_intrbase, return pic_intrbase on success,
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* -1 otherwise
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* the PIC must be initialized and ready for use
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*/
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int pic_add(struct pic_ops *);
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void pic_do_pending_int(void);
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void pic_enable_irq(int);
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void pic_disable_irq(int);
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int pic_handle_intr(void *);
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void pic_mark_pending(int);
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void pic_ext_intr(void);
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void pic_init(void);
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const char *intr_typename(int);
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void dummy_pic_establish_intr(struct pic_ops *, int, int, int);
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/* this is called after attaching CPUs so PICs can setup interrupt routing */
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void pic_finish_setup(void);
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/* address, enable passthrough */
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#define PIC_IVR_IBM 0
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#define PIC_IVR_MOT 1
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#define PIC_GET_IRQ 0
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#define PIC_GET_RECHECK 1
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struct pic_ops *setup_openpic(void *, int);
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struct pic_ops *setup_distributed_openpic(void *, int, void **, int *);
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struct pic_ops *setup_prepivr(int);
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struct pic_ops *setup_i8259(void);
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struct pic_ops *setup_mpcpic(void *);
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void mpcpic_reserv16(void);
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/* i8259 common decls */
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void i8259_initialize(void);
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void i8259_enable_irq(struct pic_ops *, int, int);
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void i8259_disable_irq(struct pic_ops *, int);
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void i8259_ack_irq(struct pic_ops *, int);
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int i8259_get_irq(struct pic_ops *, int);
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/* openpic common decls */
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void opic_finish_setup(struct pic_ops *pic);
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void openpic_set_priority(int cpu, int pri);
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int opic_get_irq(struct pic_ops *pic, int mode);
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void opic_ack_irq(struct pic_ops *pic, int irq);
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/* IPI handler */
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int cpuintr(void *);
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/* XXX - may need to be PIC specific */
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#define IPI_VECTOR 64
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#endif /* PIC_VAR_H */
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