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pcctwovar.h revision 1.5 
      1 /*	$NetBSD: pcctwovar.h,v 1.5 2012/10/27 17:18:27 chs Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000, 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Steve C. Woodford
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef	_MVME_PCCTWOVAR_H
     33 #define	_MVME_PCCTWOVAR_H
     34 
     35 /*
     36  * Structure used to attach PCC devices.
     37  */
     38 struct pcctwo_attach_args {
     39 	const char	*pa_name;	/* name of device */
     40 	int		pa_ipl;		/* interrupt level */
     41 	bus_dma_tag_t	pa_dmat;	/* DMA tag */
     42 	bus_space_tag_t	pa_bust;	/* Bus tag */
     43 	bus_addr_t	pa_offset;	/* Offset with 'Bus tag' bus space */
     44 
     45 	bus_addr_t	_pa_base;
     46 };
     47 
     48 /*
     49  * Structure used to describe a device for autoconfiguration purposes.
     50  */
     51 struct pcctwo_device {
     52 	const char *pcc_name;	/* name of device (e.g. "clock") */
     53 	bus_addr_t pcc_offset;	/* offset from PCC2 base */
     54 };
     55 
     56 /*
     57  * Macroes to make life easy when converting vector offset to interrupt
     58  * control register, and how to initialise the ICSR.
     59  */
     60 #define VEC2ICSR(r,v)		((r) | (((v) | PCCTWO_ICR_IEN) << 8))
     61 #define VEC2ICSR_REG(x)		((x) & 0xff)
     62 #define VEC2ICSR_INIT(x)	((x) >> 8)
     63 
     64 /* Shorthand for locators. */
     65 #include "locators.h"
     66 #define pcctwocf_ipl	cf_loc[PCCTWOCF_IPL]
     67 
     68 /*
     69  * PCCChip2 driver's soft state structure
     70  */
     71 struct pcctwo_softc {
     72 	device_t		sc_dev;
     73 	bus_space_tag_t		sc_bust;	/* PCCChip2's register tag */
     74 	bus_space_handle_t	sc_bush;	/* PCCChip2's register handle */
     75 	bus_dma_tag_t		sc_dmat;	/* PCCChip2's dma tag (unused)*/
     76 	int			*sc_vec2icsr;	/* Translate vector to ICSR */
     77 	int			sc_vecbase;
     78 	void			*sc_isrcookie;
     79 	void			(*sc_isrlink)(void *, int (*)(void *), void *,
     80 				    int, int, struct evcnt *);
     81 	void			(*sc_isrunlink)(void *, int);
     82 	struct evcnt *		(*sc_isrevcnt)(void *, int);
     83 #if defined(MVME162) || defined(MVME172)
     84 	struct evcnt		sc_evcnt;
     85 #endif
     86 };
     87 
     88 extern struct pcctwo_softc *sys_pcctwo;
     89 
     90 extern void pcctwo_init(struct pcctwo_softc *,
     91 		const struct pcctwo_device *, int);
     92 extern struct evcnt *pcctwointr_evcnt(int);
     93 extern void pcctwointr_establish(int, int (*)(void *), int, void *,
     94 		struct evcnt *);
     95 extern void pcctwointr_disestablish(int);
     96 
     97 #endif	/* _MVME_PCCTWOVAR_H */
     98