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intiovar.h revision 1.9.22.1
      1 /*	$NetBSD: intiovar.h,v 1.9.22.1 2008/09/18 04:33:37 wrstuden Exp $	*/
      2 
      3 /*
      4  *
      5  * Copyright (c) 1998 NetBSD Foundation, Inc.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *        This product includes software developed by the NetBSD
     19  *        Foundation, Inc. and its contributors.
     20  * 4. The name of the author may not be used to endorse or promote products
     21  *    derived from this software without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     24  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     25  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     26  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     27  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     33  * POSSIBILITY OF SUCH DAMAGE.
     34  */
     35 
     36 /*
     37  * NetBSD/x68k internal I/O virtual bus.
     38  */
     39 
     40 #ifndef _INTIOVAR_H_
     41 #define _INTIOVAR_H_
     42 
     43 #include <machine/frame.h>
     44 #include <sys/malloc.h>
     45 #include <sys/extent.h>
     46 #include "locators.h"
     47 
     48 #define cf_addr		cf_loc[INTIOCF_ADDR]
     49 #define cf_intr		cf_loc[INTIOCF_INTR]
     50 #define cf_dma		cf_loc[INTIOCF_DMA]
     51 #define cf_dmaintr	cf_loc[INTIOCF_DMAINTR]
     52 
     53 
     54 struct intio_attach_args {
     55 	bus_space_tag_t	ia_bst;	/* bus_space tag */
     56 	bus_dma_tag_t	ia_dmat; /* bus_dma tag */
     57 
     58 	const char	*ia_name; /* device name */
     59 	int		ia_addr; /* addr */
     60 	int		ia_size;
     61 	int		ia_intr; /* interrupt vector */
     62 	int		ia_dma;	/* dma channel */
     63 	int		ia_dmaintr; /* interrupt vector for dmac */
     64 };
     65 
     66 struct intio_softc {
     67 	bus_space_tag_t	sc_bst;
     68 	bus_dma_tag_t	sc_dmat;
     69 	struct extent	*sc_map;
     70 	device_t	sc_dmac;
     71 };
     72 
     73 enum intio_map_flag {
     74 	INTIO_MAP_ALLOCATE = 0,
     75 	INTIO_MAP_TESTONLY = 1
     76 };
     77 int intio_map_allocate_region(device_t, struct intio_attach_args *,
     78 	enum intio_map_flag);
     79 int intio_map_free_region(device_t, struct intio_attach_args *);
     80 
     81 typedef int (*intio_intr_handler_t)(void *);
     82 
     83 int intio_intr_establish(int, const char *, intio_intr_handler_t, void *);
     84 int intio_intr_establish_ext(int, const char *, const char *,
     85 	intio_intr_handler_t, void *);
     86 int intio_intr_disestablish(int, void *);
     87 int intio_intr(struct frame *);
     88 
     89 
     90 #define PHYS_INTIODEV 0x00c00000
     91 
     92 extern u_int8_t *intiobase;
     93 
     94 #define INTIO_ADDR(a)	((volatile u_int8_t *) (((u_int32_t) (a)) - (PHYS_INTIODEV) + intiobase))
     95 
     96 #define INTIO_SYSPORT		(0x00e8e000)
     97 #define intio_sysport		INTIO_ADDR(INTIO_SYSPORT)
     98 #define sysport_contrast	1
     99 #define sysport_tvctrl		3
    100 #define sysport_imageunit	5
    101 #define sysport_keyctrl		7
    102 #define sysport_waitctrl	9
    103 #define sysport_mpustat		11
    104 #define sysport_sramwp		13
    105 #define sysport_powoff		15
    106 
    107 #define intio_set_sysport_contrast(a) \
    108 	intio_sysport[sysport_contrast] = (a) /* 0-15 */
    109 #define intio_set_sysport_tvctrl(a) \
    110 	intio_sysport[sysport_tvctrl] = (a)
    111 #define INTIO_SYSPORT_TVCTRL	0x08
    112 #define intio_set_sysport_imageunit(a) \
    113 	intio_sysport[sysport_imageunit] = (a)
    114 #define intio_set_sysport_keyctrl(a) \
    115 	intio_sysport[sysport_keyctrl] = (a)
    116 #define INTIO_SYSPORT_KBENABLE	0x08
    117 #define intio_set_sysport_waitctrl(a) \
    118 	intio_sysport[sysport_waitctrl] = (a) /* X68030 only */
    119 #define intio_set_sysport_sramwp(a) \
    120 	intio_sysport[sysport_sramwp] = (a)
    121 #define INTIO_SYSPORT_SRAMWP	0x31
    122 #define intio_set_sysport_powoff(a) \
    123 	intio_sysport[sysport_powoff] = (a)
    124 
    125 #define intio_get_sysport_contrast() \
    126 	(intio_sysport[sysport_contrast])
    127 #define intio_get_sysport_tvctrl() \
    128 	(intio_sysport[sysport_tvctrl])
    129 #define INTIO_SYSPORT_TVSTAT	0x08
    130 #define intio_get_sysport_keyctrl() \
    131 	(intio_sysport[sysport_keyctrl])
    132 #define INTIO_SYSPORT_KBEXIST	0x08
    133 #define intio_get_sysport_waitctrl() \
    134 	(intio_sysport[sysport_waitctrl])
    135 #define intio_get_sysport_mpustat() \
    136 	(intio_sysport[sysport_mpustat])
    137 
    138 /* I/O controller (sicilian/pluto) */
    139 #define INTIO_SICILIAN		(0x00e9c000)
    140 #define intio_sicilian		INTIO_ADDR(INTIO_SICILIAN)
    141 #define sicilian_intr		1
    142 #define sicilian_ivec		3
    143 
    144 #define intio_get_sicilian_intr() \
    145 	(intio_sicilian[sicilian_intr])
    146 #define intio_set_sicilian_intr(a) \
    147 	intio_sicilian[sicilian_intr] = (a)
    148 #define SICILIAN_INTR_PAR 0x01
    149 #define SICILIAN_INTR_FDD 0x02
    150 #define SICILIAN_INTR_FDC 0x04
    151 #define SICILIAN_INTR_HDD 0x08
    152 #define SICILIAN_STAT_HDD 0x10
    153 #define SICILIAN_STAT_PAR 0x20
    154 #define SICILIAN_STAT_FDD 0x40
    155 #define SICILIAN_STAT_FDC 0x80
    156 
    157 #define intio_enable_intr(a) \
    158 	intio_sicilian[sicilian_intr] = ((a) | intio_sicilian[sicilian_intr])
    159 #define intio_disable_intr(a) \
    160 	intio_sicilian[sicilian_intr] = (~(a) & intio_sicilian[sicilian_intr])
    161 
    162 #define intio_set_sicilian_ivec(a) \
    163 	intio_sicilian[sicilian_ivec] = (a)
    164 void intio_set_ivec(int);
    165 
    166 struct intio_dma_cookie {
    167 	int	id_flags;		/* flags; see below */
    168 
    169 	/*
    170 	 * Information about the original buffer used during
    171 	 * DMA map syncs.  Note that origibuflen is only used
    172 	 * for ID_BUFTYPE_LINEAR.
    173 	 */
    174 	void	*id_origbuf;		/* pointer to orig buffer if
    175 					   bouncing */
    176 	bus_size_t id_origbuflen;	/* ...and size */
    177 	int	id_buftype;		/* type of buffer */
    178 
    179 	void	*id_bouncebuf;		/* pointer to the bounce buffer */
    180 	bus_size_t id_bouncebuflen;	/* ...and size */
    181 	int	id_nbouncesegs;		/* number of valid bounce segs */
    182 	bus_dma_segment_t id_bouncesegs[0]; /* array of bounce buffer
    183 					       physical memory segments */
    184 };
    185 
    186 /* id_flags */
    187 #define	ID_MIGHT_NEED_BOUNCE	0x01	/* map could need bounce buffers */
    188 #define	ID_HAS_BOUNCE		0x02	/* map currently has bounce buffers */
    189 #define	ID_IS_BOUNCING		0x04	/* map is bouncing current xfer */
    190 
    191 /* id_buftype */
    192 #define	ID_BUFTYPE_INVALID	0
    193 #define	ID_BUFTYPE_LINEAR	1
    194 #define	ID_BUFTYPE_MBUF		2
    195 #define	ID_BUFTYPE_UIO		3
    196 #define	ID_BUFTYPE_RAW		4
    197 
    198 #endif
    199