1 /* $NetBSD: lpt_ebus.c,v 1.24 2014/05/03 12:51:31 martin Exp $ */
2
3 /*
4 * Copyright (c) 1999, 2000 Matthew R. Green
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 /*
30 * NS Super I/O PC87332VLJ "lpt" to ebus attachment
31 */
32
33 #include <sys/cdefs.h>
34 __KERNEL_RCSID(0, "$NetBSD: lpt_ebus.c,v 1.24 2014/05/03 12:51:31 martin Exp $");
35
36 #include <sys/types.h>
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/device.h>
40 #include <sys/tty.h>
41
42 #include <sys/bus.h>
43
44 #include <dev/ebus/ebusreg.h>
45 #include <dev/ebus/ebusvar.h>
46
47 #include <dev/ic/lptvar.h>
48
49 int lpt_ebus_match(device_t, cfdata_t , void *);
50 void lpt_ebus_attach(device_t, device_t, void *);
51
52 CFATTACH_DECL_NEW(lpt_ebus, sizeof(struct lpt_softc),
53 lpt_ebus_match, lpt_ebus_attach, NULL, NULL);
54
55 #define ROM_LPT_NAME "ecpp"
56 #define ROM_LPT_NAME2 "parallel"
57
58 int
lpt_ebus_match(device_t parent,cfdata_t match,void * aux)59 lpt_ebus_match(device_t parent, cfdata_t match, void *aux)
60 {
61 struct ebus_attach_args *ea = aux;
62
63 if (strcmp(ea->ea_name, ROM_LPT_NAME) == 0
64 || strcmp(ea->ea_name, ROM_LPT_NAME2) == 0)
65 return (1);
66
67 return (0);
68 }
69
70 void
lpt_ebus_attach(device_t parent,device_t self,void * aux)71 lpt_ebus_attach(device_t parent, device_t self, void *aux)
72 {
73 struct lpt_softc *sc = device_private(self);
74 struct ebus_attach_args *ea = aux;
75 int i;
76
77 sc->sc_dev = self;
78 sc->sc_iot = ea->ea_bustag;
79 /*
80 * Addresses that should be supplied by the prom:
81 * - normal lpt registers
82 * - ns873xx configuration registers
83 * - DMA space
84 * The `lpt' driver does not use DMA accesses, so we can
85 * ignore that for now. We should enable the lpt port in
86 * the ns873xx registers here. XXX
87 *
88 * Use the prom address if there.
89 */
90 if (ea->ea_nvaddr)
91 sparc_promaddr_to_handle(sc->sc_iot, ea->ea_vaddr[0],
92 &sc->sc_ioh);
93 else if (bus_space_map(sc->sc_iot,
94 EBUS_ADDR_FROM_REG(&ea->ea_reg[0]),
95 ea->ea_reg[0].size,
96 0,
97 &sc->sc_ioh) != 0) {
98 aprint_error(": can't map register space\n");
99 return;
100 }
101
102 for (i = 0; i < ea->ea_nintr; i++)
103 bus_intr_establish(ea->ea_bustag, ea->ea_intr[i],
104 IPL_SERIAL, lptintr, sc);
105 aprint_normal("\n");
106
107 lpt_attach_subr(sc);
108 }
109