acpi_wakedev.c revision 1.2.2.2
1 1.2.2.2 yamt /* $NetBSD: acpi_wakedev.c,v 1.2.2.2 2009/08/19 18:47:03 yamt Exp $ */ 2 1.2.2.2 yamt 3 1.2.2.2 yamt /*- 4 1.2.2.2 yamt * Copyright (c) 2009 Jared D. McNeill <jmcneill (at) invisible.ca> 5 1.2.2.2 yamt * All rights reserved. 6 1.2.2.2 yamt * 7 1.2.2.2 yamt * Redistribution and use in source and binary forms, with or without 8 1.2.2.2 yamt * modification, are permitted provided that the following conditions 9 1.2.2.2 yamt * are met: 10 1.2.2.2 yamt * 1. Redistributions of source code must retain the above copyright 11 1.2.2.2 yamt * notice, this list of conditions and the following disclaimer. 12 1.2.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 13 1.2.2.2 yamt * notice, this list of conditions and the following disclaimer in the 14 1.2.2.2 yamt * documentation and/or other materials provided with the distribution. 15 1.2.2.2 yamt * 16 1.2.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 1.2.2.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 1.2.2.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 1.2.2.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 1.2.2.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 1.2.2.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 1.2.2.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 1.2.2.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 1.2.2.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 1.2.2.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 1.2.2.2 yamt * POSSIBILITY OF SUCH DAMAGE. 27 1.2.2.2 yamt */ 28 1.2.2.2 yamt 29 1.2.2.2 yamt #include <sys/cdefs.h> 30 1.2.2.2 yamt __KERNEL_RCSID(0, "$NetBSD: acpi_wakedev.c,v 1.2.2.2 2009/08/19 18:47:03 yamt Exp $"); 31 1.2.2.2 yamt 32 1.2.2.2 yamt #include <sys/types.h> 33 1.2.2.2 yamt #include <sys/param.h> 34 1.2.2.2 yamt #include <sys/kernel.h> 35 1.2.2.2 yamt #include <sys/kmem.h> 36 1.2.2.2 yamt #include <sys/device.h> 37 1.2.2.2 yamt #include <sys/queue.h> 38 1.2.2.2 yamt #include <sys/sysctl.h> 39 1.2.2.2 yamt 40 1.2.2.2 yamt #include <dev/acpi/acpivar.h> 41 1.2.2.2 yamt #include <dev/acpi/acpireg.h> 42 1.2.2.2 yamt #include <dev/acpi/acpi_wakedev.h> 43 1.2.2.2 yamt 44 1.2.2.2 yamt struct acpi_wakedev; 45 1.2.2.2 yamt 46 1.2.2.2 yamt static TAILQ_HEAD(, acpi_wakedev) acpi_wakedevlist = 47 1.2.2.2 yamt TAILQ_HEAD_INITIALIZER(acpi_wakedevlist); 48 1.2.2.2 yamt static int acpi_wakedev_node = -1; 49 1.2.2.2 yamt 50 1.2.2.2 yamt struct acpi_wakedev { 51 1.2.2.2 yamt struct acpi_devnode *aw_node; 52 1.2.2.2 yamt int aw_enabled; 53 1.2.2.2 yamt struct sysctllog *aw_sysctllog; 54 1.2.2.2 yamt TAILQ_ENTRY(acpi_wakedev) aw_list; 55 1.2.2.2 yamt }; 56 1.2.2.2 yamt 57 1.2.2.2 yamt static const char * const acpi_wakedev_default[] = { 58 1.2.2.2 yamt "PNP0C0C", /* power button */ 59 1.2.2.2 yamt "PNP0C0E", /* sleep button */ 60 1.2.2.2 yamt "PNP0C0D", /* lid switch */ 61 1.2.2.2 yamt "PNP03??", /* PC KBD port */ 62 1.2.2.2 yamt NULL, 63 1.2.2.2 yamt }; 64 1.2.2.2 yamt 65 1.2.2.2 yamt SYSCTL_SETUP(sysctl_acpi_wakedev_setup, "sysctl hw.wake subtree setup") 66 1.2.2.2 yamt { 67 1.2.2.2 yamt const struct sysctlnode *rnode; 68 1.2.2.2 yamt int err; 69 1.2.2.2 yamt 70 1.2.2.2 yamt err = sysctl_createv(NULL, 0, NULL, NULL, 71 1.2.2.2 yamt CTLFLAG_PERMANENT, 72 1.2.2.2 yamt CTLTYPE_NODE, "hw", NULL, 73 1.2.2.2 yamt NULL, 0, NULL, 0, CTL_HW, CTL_EOL); 74 1.2.2.2 yamt if (err) 75 1.2.2.2 yamt return; 76 1.2.2.2 yamt err = sysctl_createv(NULL, 0, NULL, &rnode, 77 1.2.2.2 yamt CTLFLAG_PERMANENT, 78 1.2.2.2 yamt CTLTYPE_NODE, "wake", NULL, 79 1.2.2.2 yamt NULL, 0, NULL, 0, 80 1.2.2.2 yamt CTL_HW, CTL_CREATE, CTL_EOL); 81 1.2.2.2 yamt if (err) 82 1.2.2.2 yamt return; 83 1.2.2.2 yamt acpi_wakedev_node = rnode->sysctl_num; 84 1.2.2.2 yamt } 85 1.2.2.2 yamt 86 1.2.2.2 yamt static void 87 1.2.2.2 yamt acpi_wakedev_sysctl_add(struct acpi_wakedev *aw) 88 1.2.2.2 yamt { 89 1.2.2.2 yamt int err; 90 1.2.2.2 yamt 91 1.2.2.2 yamt if (acpi_wakedev_node == -1) 92 1.2.2.2 yamt return; 93 1.2.2.2 yamt 94 1.2.2.2 yamt err = sysctl_createv(&aw->aw_sysctllog, 0, NULL, NULL, 95 1.2.2.2 yamt CTLFLAG_READWRITE, CTLTYPE_INT, aw->aw_node->ad_name, 96 1.2.2.2 yamt NULL, NULL, 0, &aw->aw_enabled, 0, 97 1.2.2.2 yamt CTL_HW, acpi_wakedev_node, CTL_CREATE, CTL_EOL); 98 1.2.2.2 yamt if (err) 99 1.2.2.2 yamt printf("acpi_wakedev_sysctl_add: " 100 1.2.2.2 yamt "sysctl_createv(hw.wake.%s) failed. (%d)\n", 101 1.2.2.2 yamt aw->aw_node->ad_name, err); 102 1.2.2.2 yamt } 103 1.2.2.2 yamt 104 1.2.2.2 yamt static bool 105 1.2.2.2 yamt acpi_wakedev_add(struct acpi_softc *sc, struct acpi_devnode *ad) 106 1.2.2.2 yamt { 107 1.2.2.2 yamt struct acpi_wakedev *aw; 108 1.2.2.2 yamt ACPI_HANDLE hdl; 109 1.2.2.2 yamt 110 1.2.2.2 yamt if (ACPI_FAILURE(AcpiGetHandle(ad->ad_handle, "_PRW", &hdl))) 111 1.2.2.2 yamt return false; 112 1.2.2.2 yamt 113 1.2.2.2 yamt aw = kmem_alloc(sizeof(*aw), KM_SLEEP); 114 1.2.2.2 yamt if (aw == NULL) { 115 1.2.2.2 yamt aprint_error("acpi_wakedev_add: kmem_alloc failed\n"); 116 1.2.2.2 yamt return false; 117 1.2.2.2 yamt } 118 1.2.2.2 yamt aw->aw_node = ad; 119 1.2.2.2 yamt aw->aw_sysctllog = NULL; 120 1.2.2.2 yamt if (acpi_match_hid(ad->ad_devinfo, acpi_wakedev_default)) 121 1.2.2.2 yamt aw->aw_enabled = 1; 122 1.2.2.2 yamt else 123 1.2.2.2 yamt aw->aw_enabled = 0; 124 1.2.2.2 yamt 125 1.2.2.2 yamt TAILQ_INSERT_TAIL(&acpi_wakedevlist, aw, aw_list); 126 1.2.2.2 yamt 127 1.2.2.2 yamt acpi_wakedev_sysctl_add(aw); 128 1.2.2.2 yamt 129 1.2.2.2 yamt return true; 130 1.2.2.2 yamt } 131 1.2.2.2 yamt 132 1.2.2.2 yamt static void 133 1.2.2.2 yamt acpi_wakedev_print(struct acpi_wakedev *aw) 134 1.2.2.2 yamt { 135 1.2.2.2 yamt aprint_debug(" %s", aw->aw_node->ad_name); 136 1.2.2.2 yamt } 137 1.2.2.2 yamt 138 1.2.2.2 yamt int 139 1.2.2.2 yamt acpi_wakedev_scan(struct acpi_softc *sc) 140 1.2.2.2 yamt { 141 1.2.2.2 yamt struct acpi_scope *as; 142 1.2.2.2 yamt struct acpi_devnode *ad; 143 1.2.2.2 yamt struct acpi_wakedev *aw; 144 1.2.2.2 yamt ACPI_DEVICE_INFO *di; 145 1.2.2.2 yamt int count = 0; 146 1.2.2.2 yamt 147 1.2.2.2 yamt #define ACPI_STA_DEV_VALID \ 148 1.2.2.2 yamt (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED|ACPI_STA_DEV_OK) 149 1.2.2.2 yamt 150 1.2.2.2 yamt TAILQ_FOREACH(as, &sc->sc_scopes, as_list) 151 1.2.2.2 yamt TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 152 1.2.2.2 yamt di = ad->ad_devinfo; 153 1.2.2.2 yamt if (di->Type != ACPI_TYPE_DEVICE) 154 1.2.2.2 yamt continue; 155 1.2.2.2 yamt if ((di->Valid & ACPI_VALID_STA) != 0 && 156 1.2.2.2 yamt (di->CurrentStatus & ACPI_STA_DEV_VALID) != 157 1.2.2.2 yamt ACPI_STA_DEV_VALID) 158 1.2.2.2 yamt continue; 159 1.2.2.2 yamt if (acpi_wakedev_add(sc, ad) == true) 160 1.2.2.2 yamt ++count; 161 1.2.2.2 yamt } 162 1.2.2.2 yamt 163 1.2.2.2 yamt #undef ACPI_STA_DEV_VALID 164 1.2.2.2 yamt 165 1.2.2.2 yamt if (count == 0) 166 1.2.2.2 yamt return 0; 167 1.2.2.2 yamt 168 1.2.2.2 yamt aprint_debug_dev(sc->sc_dev, "wakeup devices:"); 169 1.2.2.2 yamt TAILQ_FOREACH(aw, &acpi_wakedevlist, aw_list) 170 1.2.2.2 yamt acpi_wakedev_print(aw); 171 1.2.2.2 yamt aprint_debug("\n"); 172 1.2.2.2 yamt 173 1.2.2.2 yamt return count; 174 1.2.2.2 yamt } 175 1.2.2.2 yamt 176 1.2.2.2 yamt void 177 1.2.2.2 yamt acpi_wakedev_commit(struct acpi_softc *sc) 178 1.2.2.2 yamt { 179 1.2.2.2 yamt struct acpi_wakedev *aw; 180 1.2.2.2 yamt 181 1.2.2.2 yamt TAILQ_FOREACH(aw, &acpi_wakedevlist, aw_list) { 182 1.2.2.2 yamt if (aw->aw_enabled) { 183 1.2.2.2 yamt aprint_debug_dev(sc->sc_dev, "set wake GPE (%s)\n", 184 1.2.2.2 yamt aw->aw_node->ad_name); 185 1.2.2.2 yamt acpi_set_wake_gpe(aw->aw_node->ad_handle); 186 1.2.2.2 yamt } else 187 1.2.2.2 yamt acpi_clear_wake_gpe(aw->aw_node->ad_handle); 188 1.2.2.2 yamt } 189 1.2.2.2 yamt } 190
Indexes created Wed Oct 01 19:09:53 GMT 2025