1 /* $NetBSD: ug_acpi.c,v 1.5 2009/02/17 12:46:01 jmcneill Exp $ */ 2 3 /* 4 * Copyright (c) 2007 Mihai Chelaru <kefren@netbsd.ro> 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. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: ug_acpi.c,v 1.5 2009/02/17 12:46:01 jmcneill Exp $"); 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/errno.h> 34 #include <sys/ioctl.h> 35 #include <sys/syslog.h> 36 #include <sys/device.h> 37 #include <sys/proc.h> 38 #include <sys/envsys.h> 39 40 #include <sys/bus.h> 41 42 #include <dev/acpi/acpica.h> 43 #include <dev/acpi/acpireg.h> 44 #include <dev/acpi/acpivar.h> 45 46 #include <dev/sysmon/sysmonvar.h> 47 48 #include <dev/ic/ugreg.h> 49 #include <dev/ic/ugvar.h> 50 51 /* autoconf(9) functions */ 52 static int ug_acpi_match(device_t, cfdata_t, void *); 53 static void ug_acpi_attach(device_t, device_t, void *); 54 55 CFATTACH_DECL_NEW(ug_acpi, sizeof(struct ug_softc), ug_acpi_match, 56 ug_acpi_attach, NULL, NULL); 57 58 /* 59 * Supported devices 60 * XXX: only uGuru 2005 for now 61 */ 62 63 static const char* const ug_acpi_ids[] = { 64 "ABT2005", /* uGuru 2005 */ 65 NULL 66 }; 67 68 static int 69 ug_acpi_match(device_t parent, cfdata_t match, void *aux) 70 { 71 struct acpi_attach_args *aa = aux; 72 73 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 74 return 0; 75 76 return acpi_match_hid(aa->aa_node->ad_devinfo, ug_acpi_ids); 77 } 78 79 static void 80 ug_acpi_attach(device_t parent, device_t self, void *aux) 81 { 82 struct ug_softc *sc = device_private(self); 83 struct acpi_attach_args *aa = aux; 84 struct acpi_resources res; 85 struct acpi_io *io; 86 bus_space_handle_t ioh; 87 ACPI_STATUS rv; 88 89 /* parse resources */ 90 rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS", 91 &res, &acpi_resource_parse_ops_default); 92 if (ACPI_FAILURE(rv)) 93 return; 94 95 /* find our i/o registers */ 96 io = acpi_res_io(&res, 0); 97 if (io == NULL) { 98 aprint_error_dev(self, 99 "unable to find i/o register resource\n"); 100 acpi_resource_cleanup(&res); 101 return; 102 } 103 104 if (bus_space_map(aa->aa_iot, io->ar_base, io->ar_length, 105 0, &ioh)) { 106 aprint_error_dev(self, "can't map i/o space\n"); 107 acpi_resource_cleanup(&res); 108 return; 109 } 110 111 aprint_normal("%s", device_xname(self)); 112 113 sc->version = 2; /* uGuru 2005 */ 114 sc->sc_ioh = ioh; 115 sc->sc_iot = aa->aa_iot; 116 ug2_attach(self); 117 118 acpi_resource_cleanup(&res); 119 } 120