Home | History | Annotate | Line # | Download | only in mvme
pcctwovar.h revision 1.2 
      1 /*	$NetBSD: pcctwovar.h,v 1.2 2005/06/03 08:49:03 scw 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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	      This product includes software developed by the NetBSD
     21  *	      Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #ifndef	_MVME_PCCTWOVAR_H
     40 #define	_MVME_PCCTWOVAR_H
     41 
     42 /*
     43  * Structure used to attach PCC devices.
     44  */
     45 struct pcctwo_attach_args {
     46 	const char	*pa_name;	/* name of device */
     47 	int		pa_ipl;		/* interrupt level */
     48 	bus_dma_tag_t	pa_dmat;	/* DMA tag */
     49 	bus_space_tag_t	pa_bust;	/* Bus tag */
     50 	bus_addr_t	pa_offset;	/* Offset with 'Bus tag' bus space */
     51 
     52 	bus_addr_t	_pa_base;
     53 };
     54 
     55 /*
     56  * Structure used to describe a device for autoconfiguration purposes.
     57  */
     58 struct pcctwo_device {
     59 	const char *pcc_name;	/* name of device (e.g. "clock") */
     60 	bus_addr_t pcc_offset;	/* offset from PCC2 base */
     61 };
     62 
     63 /*
     64  * Macroes to make life easy when converting vector offset to interrupt
     65  * control register, and how to initialise the ICSR.
     66  */
     67 #define VEC2ICSR(r,v)		((r) | (((v) | PCCTWO_ICR_IEN) << 8))
     68 #define VEC2ICSR_REG(x)		((x) & 0xff)
     69 #define VEC2ICSR_INIT(x)	((x) >> 8)
     70 
     71 /* Shorthand for locators. */
     72 #include "locators.h"
     73 #define pcctwocf_ipl	cf_loc[PCCTWOCF_IPL]
     74 
     75 /*
     76  * PCCChip2 driver's soft state structure
     77  */
     78 struct pcctwo_softc {
     79 	struct device		sc_dev;
     80 	bus_space_tag_t		sc_bust;	/* PCCChip2's register tag */
     81 	bus_space_handle_t	sc_bush;	/* PCCChip2's register handle */
     82 	bus_dma_tag_t		sc_dmat;	/* PCCChip2's dma tag (unused)*/
     83 	int			*sc_vec2icsr;	/* Translate vector to ICSR */
     84 	int			sc_vecbase;
     85 	void			*sc_isrcookie;
     86 	void			(*sc_isrlink)(void *, int (*)(void *), void *,
     87 				    int, int, struct evcnt *);
     88 	void			(*sc_isrunlink)(void *, int);
     89 	struct evcnt *		(*sc_isrevcnt)(void *, int);
     90 #if defined(MVME162) || defined(MVME172)
     91 	struct evcnt		sc_evcnt;
     92 #endif
     93 };
     94 
     95 extern struct pcctwo_softc *sys_pcctwo;
     96 
     97 extern void pcctwo_init(struct pcctwo_softc *,
     98 		const struct pcctwo_device *, int);
     99 extern struct evcnt *pcctwointr_evcnt(int);
    100 extern void pcctwointr_establish(int, int (*)(void *), int, void *,
    101 		struct evcnt *);
    102 extern void pcctwointr_disestablish(int);
    103 
    104 #endif	/* _MVME_PCCTWOVAR_H */
    105