1 /* $NetBSD: gftty_mainbus.c,v 1.2 2024/01/06 17:52:43 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2023, 2024 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 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: gftty_mainbus.c,v 1.2 2024/01/06 17:52:43 thorpej Exp $");
34
35 #include <sys/types.h>
36 #include <sys/bus.h>
37 #include <sys/device.h>
38 #include <sys/intr.h>
39 #include <sys/systm.h>
40
41 #include <virt68k/dev/mainbusvar.h>
42
43 #include <dev/goldfish/gfttyvar.h>
44
45 static const struct device_compatible_entry compat_data[] = {
46 { .compat = "google,goldfish-tty" },
47 DEVICE_COMPAT_EOL
48 };
49
50
51 static int
gftty_mainbus_match(device_t parent,cfdata_t cf,void * aux)52 gftty_mainbus_match(device_t parent, cfdata_t cf, void *aux)
53 {
54 struct mainbus_attach_args * const ma = aux;
55
56 return mainbus_compatible_match(ma, compat_data);
57 }
58
59 static void
gftty_mainbus_attach(device_t parent,device_t self,void * aux)60 gftty_mainbus_attach(device_t parent, device_t self, void *aux)
61 {
62 struct gftty_softc * const sc = device_private(self);
63 struct mainbus_attach_args * const ma = aux;
64 char strbuf[INTR_STRING_BUFSIZE];
65
66 sc->sc_dev = self;
67
68 if (! gftty_is_console(sc)) {
69 bus_space_handle_t bsh;
70
71 if (bus_space_map(ma->ma_st, ma->ma_addr, ma->ma_size, 0,
72 &bsh) != 0) {
73 aprint_error(": couldn't map registers\n");
74 return;
75 }
76 gftty_alloc_config(sc, ma->ma_st, bsh);
77 }
78
79 sc->sc_dmat = ma->ma_dmat;
80
81 gftty_attach(sc);
82 if (sc->sc_tty != NULL) {
83 /* Attach was successful. Set up interrupt. */
84 sc->sc_ih = intr_establish(gftty_intr, sc,
85 ma->ma_irq, IPL_TTY, 0);
86 if (sc->sc_ih == NULL) {
87 aprint_error_dev(self,
88 "couldn't install interrupt handler\n");
89 return;
90 }
91 aprint_normal_dev(self, "interrupting at %s\n",
92 intr_string(sc->sc_ih, strbuf, sizeof(strbuf)));
93 }
94 }
95
96 CFATTACH_DECL_NEW(gftty_mainbus, sizeof(struct gftty_softc),
97 gftty_mainbus_match, gftty_mainbus_attach, NULL, NULL);
98