acpi_fan.c revision 1.4.2.2
1 1.4.2.2 rmind /* $NetBSD: acpi_fan.c,v 1.4.2.2 2011/03/05 20:53:03 rmind Exp $ */ 2 1.4.2.2 rmind 3 1.4.2.2 rmind /*- 4 1.4.2.2 rmind * Copyright (c) 2011 Jukka Ruohonen <jruohonen (at) iki.fi> 5 1.4.2.2 rmind * All rights reserved. 6 1.4.2.2 rmind * 7 1.4.2.2 rmind * Redistribution and use in source and binary forms, with or without 8 1.4.2.2 rmind * modification, are permitted provided that the following conditions 9 1.4.2.2 rmind * are met: 10 1.4.2.2 rmind * 11 1.4.2.2 rmind * 1. Redistributions of source code must retain the above copyright 12 1.4.2.2 rmind * notice, this list of conditions and the following disclaimer. 13 1.4.2.2 rmind * 2. Redistributions in binary form must reproduce the above copyright 14 1.4.2.2 rmind * notice, this list of conditions and the following disclaimer in the 15 1.4.2.2 rmind * documentation and/or other materials provided with the distribution. 16 1.4.2.2 rmind * 17 1.4.2.2 rmind * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 1.4.2.2 rmind * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 1.4.2.2 rmind * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 1.4.2.2 rmind * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 1.4.2.2 rmind * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 1.4.2.2 rmind * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 1.4.2.2 rmind * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 1.4.2.2 rmind * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 1.4.2.2 rmind * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 1.4.2.2 rmind * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 1.4.2.2 rmind * SUCH DAMAGE. 28 1.4.2.2 rmind */ 29 1.4.2.2 rmind #include <sys/cdefs.h> 30 1.4.2.2 rmind __KERNEL_RCSID(0, "$NetBSD: acpi_fan.c,v 1.4.2.2 2011/03/05 20:53:03 rmind Exp $"); 31 1.4.2.2 rmind 32 1.4.2.2 rmind #include <sys/param.h> 33 1.4.2.2 rmind #include <sys/module.h> 34 1.4.2.2 rmind 35 1.4.2.2 rmind #include <dev/acpi/acpireg.h> 36 1.4.2.2 rmind #include <dev/acpi/acpivar.h> 37 1.4.2.2 rmind #include <dev/acpi/acpi_power.h> 38 1.4.2.2 rmind 39 1.4.2.2 rmind #include <dev/sysmon/sysmonvar.h> 40 1.4.2.2 rmind 41 1.4.2.2 rmind #define _COMPONENT ACPI_RESOURCE_COMPONENT 42 1.4.2.2 rmind ACPI_MODULE_NAME ("acpi_fan") 43 1.4.2.2 rmind 44 1.4.2.2 rmind struct acpifan_softc { 45 1.4.2.2 rmind device_t sc_dev; 46 1.4.2.2 rmind struct acpi_devnode *sc_node; 47 1.4.2.2 rmind struct sysmon_envsys *sc_sme; 48 1.4.2.2 rmind envsys_data_t sc_sensor; 49 1.4.2.2 rmind int sc_state; 50 1.4.2.2 rmind }; 51 1.4.2.2 rmind 52 1.4.2.2 rmind const char * const acpi_fan_ids[] = { 53 1.4.2.2 rmind "PNP0C0B", 54 1.4.2.2 rmind NULL 55 1.4.2.2 rmind }; 56 1.4.2.2 rmind 57 1.4.2.2 rmind static int acpifan_match(device_t, cfdata_t, void *); 58 1.4.2.2 rmind static void acpifan_attach(device_t, device_t, void *); 59 1.4.2.2 rmind static int acpifan_detach(device_t, int); 60 1.4.2.2 rmind static bool acpifan_suspend(device_t, const pmf_qual_t *); 61 1.4.2.2 rmind static bool acpifan_resume(device_t, const pmf_qual_t *); 62 1.4.2.2 rmind static bool acpifan_shutdown(device_t, int); 63 1.4.2.2 rmind static bool acpifan_sensor_init(device_t); 64 1.4.2.2 rmind static void acpifan_sensor_state(void *); 65 1.4.2.2 rmind static void acpifan_sensor_refresh(struct sysmon_envsys *,envsys_data_t *); 66 1.4.2.2 rmind 67 1.4.2.2 rmind CFATTACH_DECL_NEW(acpifan, sizeof(struct acpifan_softc), 68 1.4.2.2 rmind acpifan_match, acpifan_attach, acpifan_detach, NULL); 69 1.4.2.2 rmind 70 1.4.2.2 rmind static int 71 1.4.2.2 rmind acpifan_match(device_t parent, cfdata_t match, void *aux) 72 1.4.2.2 rmind { 73 1.4.2.2 rmind struct acpi_attach_args *aa = aux; 74 1.4.2.2 rmind 75 1.4.2.2 rmind if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 76 1.4.2.2 rmind return 0; 77 1.4.2.2 rmind 78 1.4.2.2 rmind return acpi_match_hid(aa->aa_node->ad_devinfo, acpi_fan_ids); 79 1.4.2.2 rmind } 80 1.4.2.2 rmind 81 1.4.2.2 rmind static void 82 1.4.2.2 rmind acpifan_attach(device_t parent, device_t self, void *aux) 83 1.4.2.2 rmind { 84 1.4.2.2 rmind struct acpifan_softc *sc = device_private(self); 85 1.4.2.2 rmind struct acpi_attach_args *aa = aux; 86 1.4.2.2 rmind ACPI_HANDLE tmp; 87 1.4.2.2 rmind ACPI_STATUS rv; 88 1.4.2.2 rmind 89 1.4.2.2 rmind sc->sc_sme = NULL; 90 1.4.2.2 rmind sc->sc_dev = self; 91 1.4.2.2 rmind sc->sc_node = aa->aa_node; 92 1.4.2.2 rmind sc->sc_state = ACPI_STATE_ERROR; 93 1.4.2.2 rmind 94 1.4.2.2 rmind aprint_naive("\n"); 95 1.4.2.2 rmind aprint_normal(": ACPI Fan\n"); 96 1.4.2.2 rmind 97 1.4.2.2 rmind if (acpifan_sensor_init(self) != true) 98 1.4.2.2 rmind aprint_error_dev(self, "failed to initialize\n"); 99 1.4.2.2 rmind 100 1.4.2.2 rmind (void)acpi_power_register(sc->sc_node->ad_handle); 101 1.4.2.2 rmind (void)pmf_device_register1(self, acpifan_suspend, 102 1.4.2.2 rmind acpifan_resume, acpifan_shutdown); 103 1.4.2.2 rmind 104 1.4.2.2 rmind rv = AcpiGetHandle(sc->sc_node->ad_handle, "_FIF", &tmp); 105 1.4.2.2 rmind 106 1.4.2.2 rmind if (ACPI_SUCCESS(rv)) 107 1.4.2.2 rmind aprint_verbose_dev(self, "ACPI 4.0 functionality present\n"); 108 1.4.2.2 rmind } 109 1.4.2.2 rmind 110 1.4.2.2 rmind static int 111 1.4.2.2 rmind acpifan_detach(device_t self, int flags) 112 1.4.2.2 rmind { 113 1.4.2.2 rmind struct acpifan_softc *sc = device_private(self); 114 1.4.2.2 rmind 115 1.4.2.2 rmind if (sc->sc_state != ACPI_STATE_ERROR) 116 1.4.2.2 rmind (void)acpi_power_set(sc->sc_node->ad_handle, ACPI_STATE_D0); 117 1.4.2.2 rmind 118 1.4.2.2 rmind pmf_device_deregister(self); 119 1.4.2.2 rmind acpi_power_deregister(sc->sc_node->ad_handle); 120 1.4.2.2 rmind 121 1.4.2.2 rmind if (sc->sc_sme != NULL) 122 1.4.2.2 rmind sysmon_envsys_unregister(sc->sc_sme); 123 1.4.2.2 rmind 124 1.4.2.2 rmind return 0; 125 1.4.2.2 rmind } 126 1.4.2.2 rmind 127 1.4.2.2 rmind static bool 128 1.4.2.2 rmind acpifan_suspend(device_t self, const pmf_qual_t *qual) 129 1.4.2.2 rmind { 130 1.4.2.2 rmind struct acpifan_softc *sc = device_private(self); 131 1.4.2.2 rmind 132 1.4.2.2 rmind if (sc->sc_state == ACPI_STATE_ERROR) 133 1.4.2.2 rmind return true; 134 1.4.2.2 rmind 135 1.4.2.2 rmind (void)acpi_power_get(sc->sc_node->ad_handle, &sc->sc_state); 136 1.4.2.2 rmind (void)acpi_power_set(sc->sc_node->ad_handle, ACPI_STATE_D0); 137 1.4.2.2 rmind 138 1.4.2.2 rmind return true; 139 1.4.2.2 rmind } 140 1.4.2.2 rmind 141 1.4.2.2 rmind static bool 142 1.4.2.2 rmind acpifan_resume(device_t self, const pmf_qual_t *qual) 143 1.4.2.2 rmind { 144 1.4.2.2 rmind struct acpifan_softc *sc = device_private(self); 145 1.4.2.2 rmind 146 1.4.2.2 rmind if (sc->sc_state != ACPI_STATE_ERROR) 147 1.4.2.2 rmind (void)acpi_power_set(sc->sc_node->ad_handle, sc->sc_state); 148 1.4.2.2 rmind 149 1.4.2.2 rmind return true; 150 1.4.2.2 rmind } 151 1.4.2.2 rmind 152 1.4.2.2 rmind static bool 153 1.4.2.2 rmind acpifan_shutdown(device_t self, int how) 154 1.4.2.2 rmind { 155 1.4.2.2 rmind struct acpifan_softc *sc = device_private(self); 156 1.4.2.2 rmind 157 1.4.2.2 rmind if (sc->sc_state != ACPI_STATE_ERROR) 158 1.4.2.2 rmind (void)acpi_power_set(sc->sc_node->ad_handle, ACPI_STATE_D0); 159 1.4.2.2 rmind 160 1.4.2.2 rmind return true; 161 1.4.2.2 rmind } 162 1.4.2.2 rmind 163 1.4.2.2 rmind static bool 164 1.4.2.2 rmind acpifan_sensor_init(device_t self) 165 1.4.2.2 rmind { 166 1.4.2.2 rmind struct acpifan_softc *sc = device_private(self); 167 1.4.2.2 rmind 168 1.4.2.2 rmind if (acpi_power_get(sc->sc_node->ad_handle, &sc->sc_state) != true) 169 1.4.2.2 rmind return false; 170 1.4.2.2 rmind 171 1.4.2.2 rmind sc->sc_sme = sysmon_envsys_create(); 172 1.4.2.2 rmind 173 1.4.2.2 rmind acpifan_sensor_state(self); 174 1.4.2.2 rmind sc->sc_sensor.units = ENVSYS_INDICATOR; 175 1.4.2.2 rmind 176 1.4.2.2 rmind (void)strlcpy(sc->sc_sensor.desc, "state", sizeof(sc->sc_sensor.desc)); 177 1.4.2.2 rmind 178 1.4.2.2 rmind sc->sc_sme->sme_cookie = self; 179 1.4.2.2 rmind sc->sc_sme->sme_flags = SME_POLL_ONLY; 180 1.4.2.2 rmind sc->sc_sme->sme_name = device_xname(self); 181 1.4.2.2 rmind sc->sc_sme->sme_refresh = acpifan_sensor_refresh; 182 1.4.2.2 rmind 183 1.4.2.2 rmind if (sysmon_envsys_sensor_attach(sc->sc_sme, &sc->sc_sensor) != 0) 184 1.4.2.2 rmind goto fail; 185 1.4.2.2 rmind 186 1.4.2.2 rmind if (sysmon_envsys_register(sc->sc_sme) != 0) 187 1.4.2.2 rmind goto fail; 188 1.4.2.2 rmind 189 1.4.2.2 rmind return true; 190 1.4.2.2 rmind 191 1.4.2.2 rmind fail: 192 1.4.2.2 rmind sysmon_envsys_destroy(sc->sc_sme); 193 1.4.2.2 rmind sc->sc_sme = NULL; 194 1.4.2.2 rmind 195 1.4.2.2 rmind return false; 196 1.4.2.2 rmind } 197 1.4.2.2 rmind 198 1.4.2.2 rmind static void 199 1.4.2.2 rmind acpifan_sensor_state(void *arg) 200 1.4.2.2 rmind { 201 1.4.2.2 rmind struct acpifan_softc *sc; 202 1.4.2.2 rmind device_t self; 203 1.4.2.2 rmind int state; 204 1.4.2.2 rmind 205 1.4.2.2 rmind self = arg; 206 1.4.2.2 rmind sc = device_private(self); 207 1.4.2.2 rmind state = ACPI_STATE_ERROR; 208 1.4.2.2 rmind 209 1.4.2.2 rmind (void)acpi_power_get(sc->sc_node->ad_handle, &state); 210 1.4.2.2 rmind 211 1.4.2.2 rmind switch (state) { 212 1.4.2.2 rmind 213 1.4.2.2 rmind case ACPI_STATE_D0: 214 1.4.2.2 rmind case ACPI_STATE_D1: 215 1.4.2.2 rmind case ACPI_STATE_D2: 216 1.4.2.2 rmind sc->sc_sensor.value_cur = 1; 217 1.4.2.2 rmind sc->sc_sensor.state = ENVSYS_SVALID; 218 1.4.2.2 rmind break; 219 1.4.2.2 rmind 220 1.4.2.2 rmind case ACPI_STATE_D3: 221 1.4.2.2 rmind sc->sc_sensor.value_cur = 0; 222 1.4.2.2 rmind sc->sc_sensor.state = ENVSYS_SVALID; 223 1.4.2.2 rmind break; 224 1.4.2.2 rmind 225 1.4.2.2 rmind default: 226 1.4.2.2 rmind sc->sc_sensor.state = ENVSYS_SINVALID; 227 1.4.2.2 rmind break; 228 1.4.2.2 rmind } 229 1.4.2.2 rmind } 230 1.4.2.2 rmind 231 1.4.2.2 rmind static void 232 1.4.2.2 rmind acpifan_sensor_refresh(struct sysmon_envsys *sme, envsys_data_t *edata) 233 1.4.2.2 rmind { 234 1.4.2.2 rmind device_t self = sme->sme_cookie; 235 1.4.2.2 rmind 236 1.4.2.2 rmind (void)AcpiOsExecute(OSL_NOTIFY_HANDLER, acpifan_sensor_state, self); 237 1.4.2.2 rmind } 238 1.4.2.2 rmind 239 1.4.2.2 rmind MODULE(MODULE_CLASS_DRIVER, acpifan, NULL); 240 1.4.2.2 rmind 241 1.4.2.2 rmind #ifdef _MODULE 242 1.4.2.2 rmind #include "ioconf.c" 243 1.4.2.2 rmind #endif 244 1.4.2.2 rmind 245 1.4.2.2 rmind static int 246 1.4.2.2 rmind acpifan_modcmd(modcmd_t cmd, void *aux) 247 1.4.2.2 rmind { 248 1.4.2.2 rmind int rv = 0; 249 1.4.2.2 rmind 250 1.4.2.2 rmind switch (cmd) { 251 1.4.2.2 rmind 252 1.4.2.2 rmind case MODULE_CMD_INIT: 253 1.4.2.2 rmind 254 1.4.2.2 rmind #ifdef _MODULE 255 1.4.2.2 rmind rv = config_init_component(cfdriver_ioconf_acpifan, 256 1.4.2.2 rmind cfattach_ioconf_acpifan, cfdata_ioconf_acpifan); 257 1.4.2.2 rmind #endif 258 1.4.2.2 rmind break; 259 1.4.2.2 rmind 260 1.4.2.2 rmind case MODULE_CMD_FINI: 261 1.4.2.2 rmind 262 1.4.2.2 rmind #ifdef _MODULE 263 1.4.2.2 rmind rv = config_fini_component(cfdriver_ioconf_acpifan, 264 1.4.2.2 rmind cfattach_ioconf_acpifan, cfdata_ioconf_acpifan); 265 1.4.2.2 rmind #endif 266 1.4.2.2 rmind break; 267 1.4.2.2 rmind 268 1.4.2.2 rmind default: 269 1.4.2.2 rmind rv = ENOTTY; 270 1.4.2.2 rmind } 271 1.4.2.2 rmind 272 1.4.2.2 rmind return rv; 273 1.4.2.2 rmind } 274
Indexes created Fri Oct 03 02:09:57 GMT 2025