1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2020 Ruslan Bukin <br@bsdpad.com>
5 *
6 * This software was developed by SRI International and the University of
7 * Cambridge Computer Laboratory (Department of Computer Science and
8 * Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the
9 * DARPA SSITH research programme.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #include "opt_acpi.h"
34
35 #include <sys/types.h>
36 #include <sys/systm.h>
37 #include <sys/bus.h>
38 #include <sys/kernel.h>
39 #include <sys/malloc.h>
40 #include <sys/memdesc.h>
41 #include <sys/module.h>
42 #include <sys/rman.h>
43
44 #include <contrib/dev/acpica/include/acpi.h>
45 #include <dev/acpica/acpivar.h>
46
47 #include <arm64/coresight/coresight.h>
48 #include <arm64/coresight/coresight_funnel.h>
49
50 static int
funnel_acpi_probe(device_t dev)51 funnel_acpi_probe(device_t dev)
52 {
53 struct funnel_softc *sc;
54 static char *static_funnel_ids[] = { "ARMHC9FE", NULL };
55 static char *funnel_ids[] = { "ARMHC9FF", NULL };
56 int error;
57
58 sc = device_get_softc(dev);
59
60 error = ACPI_ID_PROBE(device_get_parent(dev), dev,
61 static_funnel_ids, NULL);
62 if (error <= 0) {
63 sc->hwtype = HWTYPE_STATIC_FUNNEL;
64 device_set_desc(dev, "ARM Coresight Static Funnel");
65 return (error);
66 }
67
68 error = ACPI_ID_PROBE(device_get_parent(dev), dev,
69 funnel_ids, NULL);
70 if (error <= 0) {
71 sc->hwtype = HWTYPE_FUNNEL;
72 device_set_desc(dev, "ARM Coresight Funnel");
73 return (error);
74 }
75
76 return (ENXIO);
77 }
78
79 static int
funnel_acpi_attach(device_t dev)80 funnel_acpi_attach(device_t dev)
81 {
82 struct funnel_softc *sc;
83
84 sc = device_get_softc(dev);
85 sc->pdata = coresight_acpi_get_platform_data(dev);
86
87 return (funnel_attach(dev));
88 }
89
90 static device_method_t funnel_acpi_methods[] = {
91 /* Device interface */
92 DEVMETHOD(device_probe, funnel_acpi_probe),
93 DEVMETHOD(device_attach, funnel_acpi_attach),
94
95 /* End */
96 DEVMETHOD_END
97 };
98
99 DEFINE_CLASS_1(funnel, funnel_acpi_driver, funnel_acpi_methods,
100 sizeof(struct funnel_softc), funnel_driver);
101
102 EARLY_DRIVER_MODULE(funnel, acpi, funnel_acpi_driver, 0, 0,
103 BUS_PASS_INTERRUPT + BUS_PASS_ORDER_MIDDLE);
104