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/cdefs.h> 36 __FBSDID("$FreeBSD$"); 37 38 #include <sys/types.h> 39 #include <sys/systm.h> 40 #include <sys/bus.h> 41 #include <sys/kernel.h> 42 #include <sys/malloc.h> 43 #include <sys/memdesc.h> 44 #include <sys/module.h> 45 #include <sys/rman.h> 46 47 #include <contrib/dev/acpica/include/acpi.h> 48 #include <dev/acpica/acpivar.h> 49 50 #include <arm64/coresight/coresight.h> 51 #include <arm64/coresight/coresight_funnel.h> 52 53 static int 54 funnel_acpi_probe(device_t dev) 55 { 56 struct funnel_softc *sc; 57 static char *static_funnel_ids[] = { "ARMHC9FE", NULL }; 58 static char *funnel_ids[] = { "ARMHC9FF", NULL }; 59 int error; 60 61 sc = device_get_softc(dev); 62 63 error = ACPI_ID_PROBE(device_get_parent(dev), dev, 64 static_funnel_ids, NULL); 65 if (error <= 0) { 66 sc->hwtype = HWTYPE_STATIC_FUNNEL; 67 device_set_desc(dev, "ARM Coresight Static Funnel"); 68 return (error); 69 } 70 71 error = ACPI_ID_PROBE(device_get_parent(dev), dev, 72 funnel_ids, NULL); 73 if (error <= 0) { 74 sc->hwtype = HWTYPE_FUNNEL; 75 device_set_desc(dev, "ARM Coresight Funnel"); 76 return (error); 77 } 78 79 return (ENXIO); 80 } 81 82 static int 83 funnel_acpi_attach(device_t dev) 84 { 85 struct funnel_softc *sc; 86 87 sc = device_get_softc(dev); 88 sc->pdata = coresight_acpi_get_platform_data(dev); 89 90 return (funnel_attach(dev)); 91 } 92 93 static device_method_t funnel_acpi_methods[] = { 94 /* Device interface */ 95 DEVMETHOD(device_probe, funnel_acpi_probe), 96 DEVMETHOD(device_attach, funnel_acpi_attach), 97 98 /* End */ 99 DEVMETHOD_END 100 }; 101 102 DEFINE_CLASS_1(funnel, funnel_acpi_driver, funnel_acpi_methods, 103 sizeof(struct funnel_softc), funnel_driver); 104 105 EARLY_DRIVER_MODULE(funnel, acpi, funnel_acpi_driver, 0, 0, 106 BUS_PASS_INTERRUPT + BUS_PASS_ORDER_MIDDLE); 107