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      1 /*	$NetBSD: eisavar.h,v 1.26 2025/10/19 20:34:04 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      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 /*
     33  * Copyright (c) 1995, 1996 Christopher G. Demetriou
     34  * All rights reserved.
     35  *
     36  * Redistribution and use in source and binary forms, with or without
     37  * modification, are permitted provided that the following conditions
     38  * are met:
     39  * 1. Redistributions of source code must retain the above copyright
     40  *    notice, this list of conditions and the following disclaimer.
     41  * 2. Redistributions in binary form must reproduce the above copyright
     42  *    notice, this list of conditions and the following disclaimer in the
     43  *    documentation and/or other materials provided with the distribution.
     44  * 3. All advertising materials mentioning features or use of this software
     45  *    must display the following acknowledgement:
     46  *      This product includes software developed by Christopher G. Demetriou
     47  *      for the NetBSD Project.
     48  * 4. The name of the author may not be used to endorse or promote products
     49  *    derived from this software without specific prior written permission
     50  *
     51  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     52  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     53  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     54  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     55  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     56  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     57  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     58  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     59  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     60  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     61  */
     62 
     63 #ifndef _DEV_EISA_EISAVAR_H_
     64 #define	_DEV_EISA_EISAVAR_H_
     65 
     66 /*
     67  * Definitions for EISA autoconfiguration.
     68  *
     69  * This file describes types and functions which are used for EISA
     70  * configuration.  Some of this information is machine-specific, and is
     71  * separated into eisa_machdep.h.
     72  */
     73 
     74 struct eisa_cfg_mem;
     75 struct eisa_cfg_irq;
     76 struct eisa_cfg_dma;
     77 struct eisa_cfg_io;
     78 
     79 #include <sys/bus.h>
     80 #include <dev/eisa/eisareg.h>		/* For ID register & string info. */
     81 
     82 /*
     83  * Structures and definitions needed by the machine-dependent header.
     84  */
     85 struct eisabus_attach_args;
     86 
     87 /*
     88  * Machine-dependent definitions.
     89  */
     90 #include <machine/eisa_machdep.h>
     91 
     92 typedef int	eisa_slot_t;		/* really only needs to be 4 bits */
     93 
     94 /*
     95  * EISA bus attach arguments.
     96  */
     97 struct eisabus_attach_args {
     98 	const char *_eba_busname;	/* XXX placeholder */
     99 	bus_space_tag_t eba_iot;	/* eisa i/o space tag */
    100 	bus_space_tag_t eba_memt;	/* eisa mem space tag */
    101 	bus_dma_tag_t eba_dmat;		/* DMA tag */
    102 	eisa_chipset_tag_t eba_ec;
    103 };
    104 
    105 int	eisabusprint(void *, const char *);
    106 
    107 static inline device_t
    108 eisabus_attach(device_t dev, struct eisabus_attach_args *iba)
    109 {
    110 	return config_found(dev, &iba, eisabusprint,
    111 	    CFARGS(.iattr = "eisabus",
    112 		   .devhandle = device_handle(dev)));
    113 }
    114 
    115 /*
    116  * EISA device attach arguments.
    117  */
    118 struct eisa_attach_args {
    119 	bus_space_tag_t ea_iot;		/* eisa i/o space tag */
    120 	bus_space_tag_t ea_memt;	/* eisa mem space tag */
    121 	bus_dma_tag_t ea_dmat;		/* DMA tag */
    122 	eisa_chipset_tag_t ea_ec;
    123 
    124 	eisa_slot_t	ea_slot;
    125 	u_int8_t	ea_vid[EISA_NVIDREGS];
    126 	u_int8_t	ea_pid[EISA_NPIDREGS];
    127 	char		ea_idstring[EISA_IDSTRINGLEN];
    128 };
    129 
    130 /*
    131  * EISA Configuration entries, set up by an EISA Configuration Utility.
    132  */
    133 
    134 struct eisa_cfg_mem {
    135 	bus_addr_t ecm_addr;
    136 	bus_size_t ecm_size;
    137 	int ecm_isram;
    138 	int ecm_decode;
    139 	int ecm_unitsize;
    140 };
    141 
    142 struct eisa_cfg_irq {
    143 	int eci_irq;
    144 	int eci_ist;
    145 	int eci_shared;
    146 };
    147 
    148 struct eisa_cfg_dma {
    149 	int ecd_drq;
    150 	int ecd_shared;
    151 	int ecd_size;
    152 #define	ECD_SIZE_8BIT		0
    153 #define	ECD_SIZE_16BIT		1
    154 #define	ECD_SIZE_32BIT		2
    155 #define	ECD_SIZE_RESERVED	3
    156 	int ecd_timing;
    157 #define	ECD_TIMING_ISA		0
    158 #define	ECD_TIMING_TYPEA	1
    159 #define	ECD_TIMING_TYPEB	2
    160 #define	ECD_TIMING_TYPEC	3
    161 };
    162 
    163 struct eisa_cfg_io {
    164 	bus_addr_t ecio_addr;
    165 	bus_size_t ecio_size;
    166 	int ecio_shared;
    167 };
    168 
    169 #ifdef _KERNEL
    170 int	eisa_compatible_match(const struct eisa_attach_args *,
    171 	    const struct device_compatible_entry *);
    172 const struct device_compatible_entry *
    173 	eisa_compatible_lookup(const struct eisa_attach_args *,
    174 	    const struct device_compatible_entry *);
    175 #endif /* _KERNEL */
    176 
    177 #endif /* _DEV_EISA_EISAVAR_H_ */
    178