1 /* $NetBSD: emmem.c,v 1.6 2023/12/20 00:40:42 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2012 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Radoslaw Kujawa.
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 * Handle (optional) PCI memory space on Elbox Mediator bridges.
34 */
35
36 #include <sys/types.h>
37 #include <sys/param.h>
38 #include <sys/time.h>
39 #include <sys/systm.h>
40 #include <sys/errno.h>
41 #include <sys/device.h>
42
43 #include <uvm/uvm_extern.h>
44
45 #include <machine/bus.h>
46 #include <machine/cpu.h>
47
48 #include <amiga/dev/zbusvar.h>
49 #include <amiga/pci/empbreg.h>
50 #include <amiga/pci/emmemvar.h>
51
52 static int emmem_match(device_t, cfdata_t, void *);
53 static void emmem_attach(device_t, device_t, void *);
54
55 CFATTACH_DECL_NEW(emmem, sizeof(struct emmem_softc),
56 emmem_match, emmem_attach, NULL, NULL);
57
58 static int
emmem_match(device_t parent,cfdata_t cf,void * aux)59 emmem_match(device_t parent, cfdata_t cf, void *aux)
60 {
61 struct zbus_args *zap;
62
63 zap = aux;
64
65 if (zap->manid != ZORRO_MANID_ELBOX)
66 return 0;
67
68 switch (zap->prodid) {
69 case ZORRO_PRODID_MED1K2_MEM: /* Mediator 1200 family */
70 case ZORRO_PRODID_MED1K2SX_MEM:
71 case ZORRO_PRODID_MED1K2LT2_MEM:
72 case ZORRO_PRODID_MED1K2LT4_MEM:
73 case ZORRO_PRODID_MED1K2TX_MEM:
74 case ZORRO_PRODID_MEDZIV_MEM: /* Mediator ZIV, not really yet */
75 case ZORRO_PRODID_MED4K_MEM: /* Mediator 4000 family */
76 case ZORRO_PRODID_MED4KMKII_MEM:
77 return 1;
78 }
79
80 return 0;
81 }
82
83 static void
emmem_attach(device_t parent,device_t self,void * aux)84 emmem_attach(device_t parent, device_t self, void *aux)
85 {
86 struct zbus_args *zap;
87 struct emmem_softc *sc;
88
89 sc = device_private(self);
90 zap = aux;
91
92 sc->sc_dev = self;
93 sc->sc_base = zap->va;
94 sc->sc_size = zap->size;
95
96 aprint_normal(": ELBOX Mediator PCI memory window, %d kB\n",
97 zap->size / 1024);
98
99 /*
100 * Do nothing here, empb or em4k should find the emmem devices
101 * and do the right(tm) thing.
102 */
103
104 }
105
106