sony_acpi.c revision 1.18
1 /* $NetBSD: sony_acpi.c,v 1.18 2010/04/15 07:02:24 jruoho Exp $ */ 2 3 /*- 4 * Copyright (c) 2005 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #include <sys/cdefs.h> 32 __KERNEL_RCSID(0, "$NetBSD: sony_acpi.c,v 1.18 2010/04/15 07:02:24 jruoho Exp $"); 33 34 #include <sys/param.h> 35 #include <sys/sysctl.h> 36 #include <sys/systm.h> 37 38 #include <dev/acpi/acpireg.h> 39 #include <dev/acpi/acpivar.h> 40 41 #define _COMPONENT ACPI_RESOURCE_COMPONENT 42 ACPI_MODULE_NAME ("sony_acpi") 43 44 #define SONY_NOTIFY_FnKeyEvent 0x92 45 #define SONY_NOTIFY_BrightnessDownPressed 0x85 46 #define SONY_NOTIFY_BrightnessDownReleased 0x05 47 #define SONY_NOTIFY_BrightnessUpPressed 0x86 48 #define SONY_NOTIFY_BrightnessUpReleased 0x06 49 #define SONY_NOTIFY_DisplaySwitchPressed 0x87 50 #define SONY_NOTIFY_DisplaySwitchReleased 0x07 51 #define SONY_NOTIFY_ZoomPressed 0x8a 52 #define SONY_NOTIFY_ZoomReleased 0x0a 53 #define SONY_NOTIFY_SuspendPressed 0x8c 54 #define SONY_NOTIFY_SuspendReleased 0x0c 55 56 struct sony_acpi_softc { 57 device_t sc_dev; 58 struct sysctllog *sc_log; 59 struct acpi_devnode *sc_node; 60 61 #define SONY_PSW_SLEEP 0 62 #define SONY_PSW_DISPLAY_CYCLE 1 63 #define SONY_PSW_ZOOM 2 64 #define SONY_PSW_LAST 3 65 struct sysmon_pswitch sc_smpsw[SONY_PSW_LAST]; 66 int sc_smpsw_valid; 67 68 #define SONY_ACPI_QUIRK_FNINIT 0x01 69 int sc_quirks; 70 bool sc_has_pic; 71 72 struct sony_acpi_pmstate { 73 ACPI_INTEGER brt; 74 } sc_pmstate; 75 }; 76 77 static const char * const sony_acpi_ids[] = { 78 "SNY5001", 79 NULL 80 }; 81 82 static int sony_acpi_match(device_t, cfdata_t, void *); 83 static void sony_acpi_attach(device_t, device_t, void *); 84 static ACPI_STATUS sony_acpi_eval_set_integer(ACPI_HANDLE, const char *, 85 ACPI_INTEGER, ACPI_INTEGER *); 86 static void sony_acpi_quirk_setup(struct sony_acpi_softc *); 87 static void sony_acpi_notify_handler(ACPI_HANDLE, uint32_t, void *); 88 static bool sony_acpi_suspend(device_t, const pmf_qual_t *); 89 static bool sony_acpi_resume(device_t, const pmf_qual_t *); 90 static void sony_acpi_brightness_down(device_t); 91 static void sony_acpi_brightness_up(device_t); 92 static ACPI_STATUS sony_acpi_find_pic(ACPI_HANDLE, uint32_t, void *, void **); 93 94 CFATTACH_DECL_NEW(sony_acpi, sizeof(struct sony_acpi_softc), 95 sony_acpi_match, sony_acpi_attach, NULL, NULL); 96 97 static int 98 sony_acpi_match(device_t parent, cfdata_t match, void *aux) 99 { 100 struct acpi_attach_args *aa = aux; 101 102 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 103 return 0; 104 105 return acpi_match_hid(aa->aa_node->ad_devinfo, sony_acpi_ids); 106 } 107 108 static int 109 sony_sysctl_helper(SYSCTLFN_ARGS) 110 { 111 struct sysctlnode node; 112 ACPI_INTEGER acpi_val; 113 ACPI_STATUS rv; 114 int val, old_val, error; 115 char buf[SYSCTL_NAMELEN + 1], *ptr; 116 struct sony_acpi_softc *sc = rnode->sysctl_data; 117 118 (void)snprintf(buf, sizeof(buf), "G%s", rnode->sysctl_name); 119 for (ptr = buf; *ptr; ptr++) 120 *ptr = toupper((unsigned char)*ptr); 121 122 rv = acpi_eval_integer(sc->sc_node->ad_handle, buf, &acpi_val); 123 if (ACPI_FAILURE(rv)) { 124 #ifdef DIAGNOSTIC 125 printf("%s: couldn't get `%s'\n", device_xname(sc->sc_dev), buf); 126 #endif 127 return EIO; 128 } 129 val = old_val = acpi_val; 130 131 node = *rnode; 132 node.sysctl_data = &val; 133 134 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 135 if (error || newp == NULL) 136 return error; 137 138 buf[0] = 'S'; 139 acpi_val = val; 140 rv = sony_acpi_eval_set_integer(sc->sc_node->ad_handle, buf, 141 acpi_val, NULL); 142 if (ACPI_FAILURE(rv)) { 143 #ifdef DIAGNOSTIC 144 printf("%s: couldn't set `%s' to %d\n", 145 device_xname(sc->sc_dev), buf, val); 146 #endif 147 return EIO; 148 } 149 return 0; 150 } 151 152 static ACPI_STATUS 153 sony_walk_cb(ACPI_HANDLE hnd, uint32_t v, void *context, void **status) 154 { 155 struct sony_acpi_softc *sc = (void *)context; 156 const struct sysctlnode *node, *snode; 157 const char *name = acpi_name(hnd); 158 ACPI_INTEGER acpi_val; 159 char buf[SYSCTL_NAMELEN + 1], *ptr; 160 int rv; 161 162 if ((name = strrchr(name, '.')) == NULL) 163 return AE_OK; 164 165 name++; 166 if ((*name != 'G') && (*name != 'S')) 167 return AE_OK; 168 169 (void)strlcpy(buf, name, sizeof(buf)); 170 *buf = 'G'; 171 172 /* 173 * We assume that if the 'get' of the name as an integer is 174 * successful it is ok. 175 */ 176 if (acpi_eval_integer(sc->sc_node->ad_handle, buf, &acpi_val)) 177 return AE_OK; 178 179 for (ptr = buf; *ptr; ptr++) 180 *ptr = tolower(*ptr); 181 182 if ((rv = sysctl_createv(&sc->sc_log, 0, NULL, &node, CTLFLAG_PERMANENT, 183 CTLTYPE_NODE, "hw", NULL, NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 184 goto out; 185 186 if ((rv = sysctl_createv(&sc->sc_log, 0, &node, &snode, 0, 187 CTLTYPE_NODE, device_xname(sc->sc_dev), 188 SYSCTL_DESCR("sony controls"), 189 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 190 goto out; 191 192 if ((rv = sysctl_createv(&sc->sc_log, 0, &snode, &node, 193 CTLFLAG_READWRITE, CTLTYPE_INT, buf + 1, NULL, 194 sony_sysctl_helper, 0, sc, 0, CTL_CREATE, CTL_EOL)) != 0) 195 goto out; 196 197 out: 198 #ifdef DIAGNOSTIC 199 if (rv) 200 printf("%s: sysctl_createv failed (rv = %d)\n", 201 device_xname(sc->sc_dev), rv); 202 #endif 203 return AE_OK; 204 } 205 206 ACPI_STATUS 207 sony_acpi_eval_set_integer(ACPI_HANDLE handle, const char *path, 208 ACPI_INTEGER val, ACPI_INTEGER *valp) 209 { 210 ACPI_STATUS rv; 211 ACPI_BUFFER buf; 212 ACPI_OBJECT param, ret_val; 213 ACPI_OBJECT_LIST params; 214 215 if (handle == NULL) 216 handle = ACPI_ROOT_OBJECT; 217 218 params.Count = 1; 219 params.Pointer = ¶m; 220 221 param.Type = ACPI_TYPE_INTEGER; 222 param.Integer.Value = val; 223 224 buf.Pointer = &ret_val; 225 buf.Length = sizeof(ret_val); 226 227 rv = AcpiEvaluateObjectTyped(handle, path, ¶ms, &buf, 228 ACPI_TYPE_INTEGER); 229 230 if (ACPI_SUCCESS(rv) && valp) 231 *valp = ret_val.Integer.Value; 232 233 return rv; 234 } 235 236 static void 237 sony_acpi_attach(device_t parent, device_t self, void *aux) 238 { 239 struct sony_acpi_softc *sc = device_private(self); 240 struct acpi_attach_args *aa = aux; 241 ACPI_STATUS rv; 242 int i; 243 244 aprint_naive(": Sony Miscellaneous Controller\n"); 245 aprint_normal(": Sony Miscellaneous Controller\n"); 246 247 sc->sc_node = aa->aa_node; 248 sc->sc_dev = self; 249 250 rv = AcpiWalkNamespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, 100, 251 sony_acpi_find_pic, NULL, sc, NULL); 252 if (ACPI_FAILURE(rv)) 253 aprint_error_dev(self, "couldn't walk namespace: %s\n", 254 AcpiFormatException(rv)); 255 256 /* 257 * If we don't find an SNY6001 device, assume that we need the 258 * Fn key initialization sequence. 259 */ 260 if (sc->sc_has_pic == false) 261 sc->sc_quirks |= SONY_ACPI_QUIRK_FNINIT; 262 263 sony_acpi_quirk_setup(sc); 264 265 /* Configure suspend button and hotkeys */ 266 sc->sc_smpsw[SONY_PSW_SLEEP].smpsw_name = device_xname(self); 267 sc->sc_smpsw[SONY_PSW_SLEEP].smpsw_type = PSWITCH_TYPE_SLEEP; 268 sc->sc_smpsw[SONY_PSW_DISPLAY_CYCLE].smpsw_name = 269 PSWITCH_HK_DISPLAY_CYCLE; 270 sc->sc_smpsw[SONY_PSW_DISPLAY_CYCLE].smpsw_type = PSWITCH_TYPE_HOTKEY; 271 sc->sc_smpsw[SONY_PSW_ZOOM].smpsw_name = PSWITCH_HK_ZOOM_BUTTON; 272 sc->sc_smpsw[SONY_PSW_ZOOM].smpsw_type = PSWITCH_TYPE_HOTKEY; 273 sc->sc_smpsw_valid = 1; 274 275 for (i = 0; i < SONY_PSW_LAST; i++) 276 if (sysmon_pswitch_register(&sc->sc_smpsw[i]) != 0) { 277 aprint_error_dev(self, 278 "couldn't register %s with sysmon\n", 279 sc->sc_smpsw[i].smpsw_name); 280 sc->sc_smpsw_valid = 0; 281 } 282 283 (void)acpi_register_notify(sc->sc_node, sony_acpi_notify_handler); 284 285 /* Install sysctl handler */ 286 rv = AcpiWalkNamespace(ACPI_TYPE_METHOD, 287 sc->sc_node->ad_handle, 1, sony_walk_cb, NULL, sc, NULL); 288 289 #ifdef DIAGNOSTIC 290 if (ACPI_FAILURE(rv)) 291 aprint_error_dev(self, "Cannot walk ACPI namespace (%u)\n", 292 rv); 293 #endif 294 295 if (!pmf_device_register(self, sony_acpi_suspend, sony_acpi_resume)) 296 aprint_error_dev(self, "couldn't establish power handler\n"); 297 298 if (!pmf_event_register(self, PMFE_DISPLAY_BRIGHTNESS_UP, 299 sony_acpi_brightness_up, true)) 300 aprint_error_dev(self, "couldn't register BRIGHTNESS UP handler\n"); 301 302 if (!pmf_event_register(self, PMFE_DISPLAY_BRIGHTNESS_DOWN, 303 sony_acpi_brightness_down, true)) 304 aprint_error_dev(self, "couldn't register BRIGHTNESS DOWN handler\n"); 305 } 306 307 static void 308 sony_acpi_quirk_setup(struct sony_acpi_softc *sc) 309 { 310 ACPI_HANDLE hdl = sc->sc_node->ad_handle; 311 312 if (sc->sc_quirks & SONY_ACPI_QUIRK_FNINIT) { 313 /* Initialize extra Fn keys */ 314 sony_acpi_eval_set_integer(hdl, "SN02", 0x04, NULL); 315 sony_acpi_eval_set_integer(hdl, "SN07", 0x02, NULL); 316 sony_acpi_eval_set_integer(hdl, "SN02", 0x10, NULL); 317 sony_acpi_eval_set_integer(hdl, "SN07", 0x00, NULL); 318 sony_acpi_eval_set_integer(hdl, "SN03", 0x02, NULL); 319 sony_acpi_eval_set_integer(hdl, "SN07", 0x101, NULL); 320 } 321 } 322 323 static void 324 sony_acpi_notify_handler(ACPI_HANDLE hdl, uint32_t notify, void *opaque) 325 { 326 device_t dv = opaque; 327 struct sony_acpi_softc *sc = device_private(dv); 328 ACPI_STATUS rv; 329 ACPI_INTEGER arg; 330 int s; 331 332 if (notify == SONY_NOTIFY_FnKeyEvent) { 333 rv = sony_acpi_eval_set_integer(hdl, "SN07", 0x202, &arg); 334 if (ACPI_FAILURE(rv)) 335 return; 336 337 notify = arg & 0xff; 338 } 339 340 s = spltty(); 341 switch (notify) { 342 case SONY_NOTIFY_BrightnessDownPressed: 343 sony_acpi_brightness_down(dv); 344 break; 345 case SONY_NOTIFY_BrightnessUpPressed: 346 sony_acpi_brightness_up(dv); 347 break; 348 case SONY_NOTIFY_BrightnessDownReleased: 349 case SONY_NOTIFY_BrightnessUpReleased: 350 break; 351 case SONY_NOTIFY_SuspendPressed: 352 if (!sc->sc_smpsw_valid) 353 break; 354 sysmon_pswitch_event(&sc->sc_smpsw[SONY_PSW_SLEEP], 355 PSWITCH_EVENT_PRESSED); 356 break; 357 case SONY_NOTIFY_SuspendReleased: 358 break; 359 case SONY_NOTIFY_DisplaySwitchPressed: 360 if (!sc->sc_smpsw_valid) 361 break; 362 sysmon_pswitch_event(&sc->sc_smpsw[SONY_PSW_DISPLAY_CYCLE], 363 PSWITCH_EVENT_PRESSED); 364 break; 365 case SONY_NOTIFY_DisplaySwitchReleased: 366 break; 367 case SONY_NOTIFY_ZoomPressed: 368 if (!sc->sc_smpsw_valid) 369 break; 370 sysmon_pswitch_event(&sc->sc_smpsw[SONY_PSW_ZOOM], 371 PSWITCH_EVENT_PRESSED); 372 break; 373 case SONY_NOTIFY_ZoomReleased: 374 break; 375 default: 376 aprint_debug_dev(dv, "unknown notify event 0x%x\n", 377 notify); 378 break; 379 } 380 splx(s); 381 } 382 383 static bool 384 sony_acpi_suspend(device_t dv, const pmf_qual_t *qual) 385 { 386 struct sony_acpi_softc *sc = device_private(dv); 387 388 acpi_eval_integer(sc->sc_node->ad_handle, "GBRT", &sc->sc_pmstate.brt); 389 390 return true; 391 } 392 393 static bool 394 sony_acpi_resume(device_t dv, const pmf_qual_t *qual) 395 { 396 struct sony_acpi_softc *sc = device_private(dv); 397 398 sony_acpi_eval_set_integer(sc->sc_node->ad_handle, "SBRT", 399 sc->sc_pmstate.brt, NULL); 400 sony_acpi_quirk_setup(sc); 401 402 return true; 403 } 404 405 static void 406 sony_acpi_brightness_up(device_t dv) 407 { 408 struct sony_acpi_softc *sc = device_private(dv); 409 ACPI_INTEGER arg; 410 ACPI_STATUS rv; 411 412 rv = acpi_eval_integer(sc->sc_node->ad_handle, "GBRT", &arg); 413 if (ACPI_FAILURE(rv)) 414 return; 415 if (arg >= 8) 416 arg = 8; 417 else 418 arg++; 419 sony_acpi_eval_set_integer(sc->sc_node->ad_handle, "SBRT", arg, NULL); 420 } 421 422 static void 423 sony_acpi_brightness_down(device_t dv) 424 { 425 struct sony_acpi_softc *sc = device_private(dv); 426 ACPI_INTEGER arg; 427 ACPI_STATUS rv; 428 429 rv = acpi_eval_integer(sc->sc_node->ad_handle, "GBRT", &arg); 430 if (ACPI_FAILURE(rv)) 431 return; 432 if (arg <= 0) 433 arg = 0; 434 else 435 arg--; 436 sony_acpi_eval_set_integer(sc->sc_node->ad_handle, "SBRT", arg, NULL); 437 } 438 439 static ACPI_STATUS 440 sony_acpi_find_pic(ACPI_HANDLE hdl, uint32_t level, 441 void *opaque, void **status) 442 { 443 struct sony_acpi_softc *sc = opaque; 444 ACPI_STATUS rv; 445 ACPI_DEVICE_INFO *devinfo; 446 447 rv = AcpiGetObjectInfo(hdl, &devinfo); 448 if (ACPI_FAILURE(rv) || devinfo == NULL) 449 return AE_OK; /* we don't want to stop searching */ 450 451 if (devinfo->HardwareId.String && 452 strncmp(devinfo->HardwareId.String, "SNY6001", 7) == 0) 453 sc->sc_has_pic = true; 454 455 ACPI_FREE(devinfo); 456 457 return AE_OK; 458 } 459
Indexes created Thu Oct 02 07:10:07 GMT 2025