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intiovar.h revision 1.12
      1 /*	$NetBSD: intiovar.h,v 1.12 2008/12/18 05:24:03 isaki 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 #define INTIO_ADDR(a)	((volatile u_int8_t *) (((u_int32_t) (a)) - (PHYS_INTIODEV) + intiobase))
     93 
     94 #define INTIO_SYSPORT		(0x00e8e000)
     95 #define intio_sysport		INTIO_ADDR(INTIO_SYSPORT)
     96 #define sysport_contrast	1
     97 #define sysport_tvctrl		3
     98 #define sysport_imageunit	5
     99 #define sysport_keyctrl		7
    100 #define sysport_waitctrl	9
    101 #define sysport_mpustat		11
    102 #define sysport_sramwp		13
    103 #define sysport_powoff		15
    104 
    105 #define intio_set_sysport_contrast(a) \
    106 	intio_sysport[sysport_contrast] = (a) /* 0-15 */
    107 #define intio_set_sysport_tvctrl(a) \
    108 	intio_sysport[sysport_tvctrl] = (a)
    109 #define INTIO_SYSPORT_TVCTRL	0x08
    110 #define intio_set_sysport_imageunit(a) \
    111 	intio_sysport[sysport_imageunit] = (a)
    112 #define intio_set_sysport_keyctrl(a) \
    113 	intio_sysport[sysport_keyctrl] = (a)
    114 #define INTIO_SYSPORT_KBENABLE	0x08
    115 #define intio_set_sysport_waitctrl(a) \
    116 	intio_sysport[sysport_waitctrl] = (a) /* X68030 only */
    117 #define intio_set_sysport_sramwp(a) \
    118 	intio_sysport[sysport_sramwp] = (a)
    119 #define INTIO_SYSPORT_SRAMWP	0x31
    120 #define intio_set_sysport_powoff(a) \
    121 	intio_sysport[sysport_powoff] = (a)
    122 
    123 #define intio_get_sysport_contrast() \
    124 	(intio_sysport[sysport_contrast])
    125 #define intio_get_sysport_tvctrl() \
    126 	(intio_sysport[sysport_tvctrl])
    127 #define INTIO_SYSPORT_TVSTAT	0x08
    128 #define intio_get_sysport_keyctrl() \
    129 	(intio_sysport[sysport_keyctrl])
    130 #define INTIO_SYSPORT_KBEXIST	0x08
    131 #define intio_get_sysport_waitctrl() \
    132 	(intio_sysport[sysport_waitctrl])
    133 #define intio_get_sysport_mpustat() \
    134 	(intio_sysport[sysport_mpustat])
    135 
    136 /* I/O controller (sicilian/pluto) */
    137 #define INTIO_SICILIAN		(0x00e9c000)
    138 #define intio_sicilian		INTIO_ADDR(INTIO_SICILIAN)
    139 #define sicilian_intr		1
    140 #define sicilian_ivec		3
    141 
    142 #define intio_get_sicilian_intr() \
    143 	(intio_sicilian[sicilian_intr])
    144 #define intio_set_sicilian_intr(a) \
    145 	intio_sicilian[sicilian_intr] = (a)
    146 #define SICILIAN_INTR_PAR 0x01
    147 #define SICILIAN_INTR_FDD 0x02
    148 #define SICILIAN_INTR_FDC 0x04
    149 #define SICILIAN_INTR_HDD 0x08
    150 #define SICILIAN_STAT_HDD 0x10
    151 #define SICILIAN_STAT_PAR 0x20
    152 #define SICILIAN_STAT_FDD 0x40
    153 #define SICILIAN_STAT_FDC 0x80
    154 
    155 #define intio_enable_intr(a) \
    156 	intio_sicilian[sicilian_intr] = ((a) | intio_sicilian[sicilian_intr])
    157 #define intio_disable_intr(a) \
    158 	intio_sicilian[sicilian_intr] = (~(a) & intio_sicilian[sicilian_intr])
    159 
    160 #define intio_set_sicilian_ivec(a) \
    161 	intio_sicilian[sicilian_ivec] = (a)
    162 void intio_set_ivec(int);
    163 
    164 struct intio_dma_cookie {
    165 	int	id_flags;		/* flags; see below */
    166 
    167 	/*
    168 	 * Information about the original buffer used during
    169 	 * DMA map syncs.  Note that origibuflen is only used
    170 	 * for ID_BUFTYPE_LINEAR.
    171 	 */
    172 	void	*id_origbuf;		/* pointer to orig buffer if
    173 					   bouncing */
    174 	bus_size_t id_origbuflen;	/* ...and size */
    175 	int	id_buftype;		/* type of buffer */
    176 
    177 	void	*id_bouncebuf;		/* pointer to the bounce buffer */
    178 	bus_size_t id_bouncebuflen;	/* ...and size */
    179 	int	id_nbouncesegs;		/* number of valid bounce segs */
    180 	bus_dma_segment_t id_bouncesegs[0]; /* array of bounce buffer
    181 					       physical memory segments */
    182 };
    183 
    184 /* id_flags */
    185 #define	ID_MIGHT_NEED_BOUNCE	0x01	/* map could need bounce buffers */
    186 #define	ID_HAS_BOUNCE		0x02	/* map currently has bounce buffers */
    187 #define	ID_IS_BOUNCING		0x04	/* map is bouncing current xfer */
    188 
    189 /* id_buftype */
    190 #define	ID_BUFTYPE_INVALID	0
    191 #define	ID_BUFTYPE_LINEAR	1
    192 #define	ID_BUFTYPE_MBUF		2
    193 #define	ID_BUFTYPE_UIO		3
    194 #define	ID_BUFTYPE_RAW		4
    195 
    196 #endif
    197