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      1 /* $NetBSD: aubus.c,v 1.27 2022/09/29 07:00:46 skrll Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2006 Itronix Inc.
      5  * All rights reserved.
      6  *
      7  * Portions written by Garrett D'Amore for Itronix Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. The name of Itronix Inc. may not be used to endorse
     18  *    or promote products derived from this software without specific
     19  *    prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
     25  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     26  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     28  * ON ANY THEORY OF LIABILITY, WHETHER IN
     29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     31  * POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 /*
     35  * Copyright 2001 Wasabi Systems, Inc.
     36  * All rights reserved.
     37  *
     38  * Written by Simon Burge for Wasabi Systems, Inc.
     39  *
     40  * Redistribution and use in source and binary forms, with or without
     41  * modification, are permitted provided that the following conditions
     42  * are met:
     43  * 1. Redistributions of source code must retain the above copyright
     44  *    notice, this list of conditions and the following disclaimer.
     45  * 2. Redistributions in binary form must reproduce the above copyright
     46  *    notice, this list of conditions and the following disclaimer in the
     47  *    documentation and/or other materials provided with the distribution.
     48  * 3. All advertising materials mentioning features or use of this software
     49  *    must display the following acknowledgement:
     50  *      This product includes software developed for the NetBSD Project by
     51  *      Wasabi Systems, Inc.
     52  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     53  *    or promote products derived from this software without specific prior
     54  *    written permission.
     55  *
     56  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     57  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     58  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     59  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     60  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     61  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     62  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     63  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     64  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     65  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     66  * POSSIBILITY OF SUCH DAMAGE.
     67  */
     68 
     69 /*
     70  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
     71  *
     72  * Redistribution and use in source and binary forms, with or without
     73  * modification, are permitted provided that the following conditions
     74  * are met:
     75  * 1. Redistributions of source code must retain the above copyright
     76  *    notice, this list of conditions and the following disclaimer.
     77  * 2. Redistributions in binary form must reproduce the above copyright
     78  *    notice, this list of conditions and the following disclaimer in the
     79  *    documentation and/or other materials provided with the distribution.
     80  * 3. All advertising materials mentioning features or use of this software
     81  *    must display the following acknowledgement:
     82  *      This product includes software developed by Christopher G. Demetriou
     83  *	for the NetBSD Project.
     84  * 4. The name of the author may not be used to endorse or promote products
     85  *    derived from this software without specific prior written permission
     86  *
     87  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     88  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     89  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     90  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     91  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     92  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     93  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     94  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     95  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     96  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     97  */
     98 
     99 #include <sys/cdefs.h>
    100 __KERNEL_RCSID(0, "$NetBSD: aubus.c,v 1.27 2022/09/29 07:00:46 skrll Exp $");
    101 
    102 #include "locators.h"
    103 #define _MIPS_BUS_DMA_PRIVATE
    104 
    105 #include <sys/param.h>
    106 #include <sys/bus.h>
    107 #include <sys/device.h>
    108 #include <sys/extent.h>
    109 #include <sys/systm.h>
    110 
    111 #include <mips/locore.h>
    112 #include <mips/alchemy/include/aureg.h>
    113 #include <mips/alchemy/include/auvar.h>
    114 #include <mips/alchemy/include/aubusvar.h>
    115 
    116 static int	aubus_match(device_t, cfdata_t, void *);
    117 static void	aubus_attach(device_t, device_t, void *);
    118 static int	aubus_print(void *, const char *);
    119 
    120 CFATTACH_DECL_NEW(aubus, 0,
    121     aubus_match, aubus_attach, NULL, NULL);
    122 
    123 bus_space_tag_t	aubus_st;		/* XXX */
    124 struct mips_bus_dma_tag aubus_mdt = {
    125 	._dmamap_ops = _BUS_DMAMAP_OPS_INITIALIZER,
    126 	._dmamem_ops = _BUS_DMAMEM_OPS_INITIALIZER,
    127 	._dmatag_ops = _BUS_DMATAG_OPS_INITIALIZER,
    128 };
    129 
    130 /*
    131  * Probe for the aubus; always succeeds.
    132  */
    133 static int
    134 aubus_match(device_t parent, cfdata_t match, void *aux)
    135 {
    136 
    137 	return 1;
    138 }
    139 
    140 /*
    141  * Attach the aubus.
    142  */
    143 static void
    144 aubus_attach(device_t parent, device_t self, void *aux)
    145 {
    146 	struct aubus_attach_args aa;
    147 	device_t sc = self;
    148 	struct au_chipdep *chip;
    149 	const struct au_dev *ad;
    150 	int locs[AUBUSCF_NLOCS];
    151 
    152 	printf("\n");
    153 
    154 	chip = au_chipdep();
    155 	KASSERT(chip != NULL);
    156 
    157 	aubus_mdt._cookie = sc;
    158 
    159 	for (ad = chip->devices; ad->name != NULL; ad++) {
    160 		aa.aa_name = ad->name;
    161 		aa.aa_st = aubus_st;
    162 		aa.aa_dt = &aubus_mdt;
    163 		aa.aa_addrs[0] = ad->addr[0];
    164 		aa.aa_addrs[1] = ad->addr[1];
    165 		aa.aa_addrs[2] = ad->addr[2];
    166 		aa.aa_irq[0] = ad->irq[0];
    167 		aa.aa_irq[1] = ad->irq[1];
    168 
    169 		locs[AUBUSCF_ADDR] = ad->addr[0];
    170 
    171 		config_found(self, &aa, aubus_print,
    172 		    CFARGS(.submatch = config_stdsubmatch,
    173 			   .locators = locs));
    174 	}
    175 }
    176 
    177 static int
    178 aubus_print(void *aux, const char *pnp)
    179 {
    180 	struct aubus_attach_args *aa = aux;
    181 
    182 	if (pnp)
    183 		aprint_normal("%s at %s", aa->aa_name, pnp);
    184 
    185 	if (aa->aa_addr != AUBUSCF_ADDR_DEFAULT)
    186 		aprint_normal(" addr 0x%"PRIxBUSADDR, aa->aa_addr);
    187 	if (aa->aa_irq[0] >= 0)
    188 		aprint_normal(" irq %d", aa->aa_irq[0]);
    189 	if (aa->aa_irq[1] >= 0)
    190 		aprint_normal(",%d", aa->aa_irq[1]);
    191 	return (UNCONF);
    192 }
    193 
    194 #if 0
    195 void
    196 aubus_alloc_dma_tag(device_t sc, bus_dma_tag_t pdt)
    197 {
    198 	bus_dma_tag_t	t;
    199 
    200 	t = pdt;
    201 	t->_cookie = sc;
    202 	t->_wbase = 0;	/* XXX */
    203 	t->_physbase = 0;	/* XXX */
    204 	t->_wsize = MIPS_KSEG1_START - MIPS_KSEG0_START;
    205 	t->_dmamap_create = _bus_dmamap_create;
    206 	t->_dmamap_destroy = _bus_dmamap_destroy;
    207 	t->_dmamap_load = _bus_dmamap_load;
    208 	t->_dmamap_load_mbuf = _bus_dmamap_load_mbuf;
    209 	t->_dmamap_load_uio = _bus_dmamap_load_uio;
    210 	t->_dmamap_load_raw = _bus_dmamap_load_raw;
    211 	t->_dmamap_unload = _bus_dmamap_unload;
    212 	t->_dmamap_sync = _bus_dmamap_sync;
    213 	t->_dmamem_alloc = _bus_dmamem_alloc;
    214 	t->_dmamem_free = _bus_dmamem_free;
    215 	t->_dmamem_map = _bus_dmamem_map;
    216 	t->_dmamem_unmap = _bus_dmamem_unmap;
    217 	t->_dmamem_mmap = _bus_dmamem_mmap;
    218 }
    219 #endif
    220