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_tmc.h>
49
50 static int
tmc_acpi_probe(device_t dev)51 tmc_acpi_probe(device_t dev)
52 {
53 static char *tmc_ids[] = { "ARMHC97C", NULL };
54 int error;
55
56 error = ACPI_ID_PROBE(device_get_parent(dev), dev, tmc_ids, NULL);
57 if (error <= 0)
58 device_set_desc(dev, "ARM Coresight TMC");
59
60 return (error);
61 }
62
63 static int
tmc_acpi_attach(device_t dev)64 tmc_acpi_attach(device_t dev)
65 {
66 struct tmc_softc *sc;
67
68 sc = device_get_softc(dev);
69 sc->pdata = coresight_acpi_get_platform_data(dev);
70
71 return (tmc_attach(dev));
72 }
73
74 static device_method_t tmc_acpi_methods[] = {
75 /* Device interface */
76 DEVMETHOD(device_probe, tmc_acpi_probe),
77 DEVMETHOD(device_attach, tmc_acpi_attach),
78
79 /* End */
80 DEVMETHOD_END
81 };
82
83 DEFINE_CLASS_1(tmc, tmc_acpi_driver, tmc_acpi_methods,
84 sizeof(struct tmc_softc), tmc_driver);
85
86 EARLY_DRIVER_MODULE(tmc, acpi, tmc_acpi_driver, 0, 0,
87 BUS_PASS_INTERRUPT + BUS_PASS_ORDER_MIDDLE);
88