sony_acpi.c revision 1.3
1 /* $NetBSD: sony_acpi.c,v 1.3 2008/01/06 19:42:03 christos 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 #include <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: sony_acpi.c,v 1.3 2008/01/06 19:42:03 christos Exp $"); 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/device.h> 44 #include <sys/proc.h> 45 #include <sys/kernel.h> 46 #include <sys/callout.h> 47 #include <sys/sysctl.h> 48 49 #include <machine/bus.h> 50 51 #include <dev/acpi/acpica.h> 52 #include <dev/acpi/acpivar.h> 53 54 #define SONY_NOTIFY_FnKeyEvent 0x92 55 #define SONY_NOTIFY_BrightnessDownPressed 0x85 56 #define SONY_NOTIFY_BrightnessDownReleased 0x05 57 #define SONY_NOTIFY_BrightnessUpPressed 0x86 58 #define SONY_NOTIFY_BrightnessUpReleased 0x06 59 #define SONY_NOTIFY_DisplaySwitchPressed 0x87 60 #define SONY_NOTIFY_DisplaySwitchReleased 0x07 61 #define SONY_NOTIFY_ZoomPressed 0x8a 62 #define SONY_NOTIFY_ZoomReleased 0x0a 63 #define SONY_NOTIFY_SuspendPressed 0x8c 64 #define SONY_NOTIFY_SuspendReleased 0x0c 65 66 struct sony_acpi_softc { 67 struct device sc_dev; 68 struct sysctllog *sc_log; 69 struct acpi_devnode *sc_node; 70 71 #define SONY_PSW_SLEEP 0 72 #define SONY_PSW_DISPLAY_CYCLE 1 73 #define SONY_PSW_ZOOM 2 74 #define SONY_PSW_LAST 3 75 struct sysmon_pswitch sc_smpsw[SONY_PSW_LAST]; 76 int sc_smpsw_valid; 77 78 #define SONY_ACPI_QUIRK_FNINIT 0x01 79 int sc_quirks; 80 bool sc_has_pic; 81 82 struct sony_acpi_pmstate { 83 ACPI_INTEGER brt; 84 } sc_pmstate; 85 }; 86 87 static const char * const sony_acpi_ids[] = { 88 "SNY5001", 89 NULL 90 }; 91 92 static int sony_acpi_match(struct device *, struct cfdata *, void *); 93 static void sony_acpi_attach(struct device *, struct device *, void *); 94 static ACPI_STATUS sony_acpi_eval_set_integer(ACPI_HANDLE, const char *, 95 ACPI_INTEGER, ACPI_INTEGER *); 96 static void sony_acpi_quirk_setup(struct sony_acpi_softc *); 97 static void sony_acpi_notify_handler(ACPI_HANDLE, UINT32, void *); 98 static bool sony_acpi_suspend(device_t); 99 static bool sony_acpi_resume(device_t); 100 static void sony_acpi_brightness_down(device_t); 101 static void sony_acpi_brightness_up(device_t); 102 static ACPI_STATUS sony_acpi_find_pic(ACPI_HANDLE, UINT32, void *, void **); 103 104 CFATTACH_DECL(sony_acpi, sizeof(struct sony_acpi_softc), 105 sony_acpi_match, sony_acpi_attach, NULL, NULL); 106 107 static int 108 sony_acpi_match(struct device *parent, struct cfdata *match, 109 void *aux) 110 { 111 struct acpi_attach_args *aa = aux; 112 113 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 114 return 0; 115 116 return acpi_match_hid(aa->aa_node->ad_devinfo, sony_acpi_ids); 117 } 118 119 static int 120 sony_sysctl_helper(SYSCTLFN_ARGS) 121 { 122 struct sysctlnode node; 123 ACPI_INTEGER acpi_val; 124 ACPI_STATUS rv; 125 int val, old_val, error; 126 char buf[SYSCTL_NAMELEN + 1], *ptr; 127 struct sony_acpi_softc *sc = rnode->sysctl_data; 128 129 (void)snprintf(buf, sizeof(buf), "G%s", rnode->sysctl_name); 130 for (ptr = buf; *ptr; ptr++) 131 *ptr = toupper(*ptr); 132 133 rv = acpi_eval_integer(sc->sc_node->ad_handle, buf, &acpi_val); 134 if (ACPI_FAILURE(rv)) { 135 #ifdef DIAGNOSTIC 136 printf("%s: couldn't get `%s'\n", device_xname(&sc->sc_dev), buf); 137 #endif 138 return EIO; 139 } 140 val = old_val = acpi_val; 141 142 node = *rnode; 143 node.sysctl_data = &val; 144 145 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 146 if (error || newp == NULL) 147 return error; 148 149 (void)snprintf(buf, sizeof(buf), "S%s", rnode->sysctl_name); 150 acpi_val = val; 151 rv = sony_acpi_eval_set_integer(sc->sc_node->ad_handle, buf, 152 acpi_val, NULL); 153 if (ACPI_FAILURE(rv)) { 154 #ifdef DIAGNOSTIC 155 printf("%s: couldn't set `%s' to %d\n", 156 device_xname(&sc->sc_dev), buf, val); 157 #endif 158 return EIO; 159 } 160 return 0; 161 } 162 163 static ACPI_STATUS 164 sony_walk_cb(ACPI_HANDLE hnd, UINT32 v, void *context, 165 void **status) 166 { 167 struct sony_acpi_softc *sc = (void*)context; 168 const struct sysctlnode *node, *snode; 169 const char *name = acpi_name(hnd); 170 ACPI_INTEGER acpi_val; 171 char buf[SYSCTL_NAMELEN + 1], *ptr; 172 int rv; 173 174 if ((name = strrchr(name, '.')) == NULL) 175 return AE_OK; 176 177 name++; 178 if ((*name != 'G') && (*name != 'S')) 179 return AE_OK; 180 181 (void)strlcpy(buf, name, sizeof(buf)); 182 *buf = 'G'; 183 184 /* 185 * We assume that if the 'get' of the name as an integer is 186 * successful it is ok. 187 */ 188 if (acpi_eval_integer(sc->sc_node->ad_handle, buf, &acpi_val)) 189 return AE_OK; 190 191 for (ptr = buf; *ptr; ptr++) 192 *ptr = tolower(*ptr); 193 194 if ((rv = sysctl_createv(&sc->sc_log, 0, NULL, &node, CTLFLAG_PERMANENT, 195 CTLTYPE_NODE, "hw", NULL, NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 196 goto out; 197 198 if ((rv = sysctl_createv(&sc->sc_log, 0, &node, &snode, 0, 199 CTLTYPE_NODE, device_xname(&sc->sc_dev), 200 SYSCTL_DESCR("sony controls"), 201 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 202 goto out; 203 204 if ((rv = sysctl_createv(&sc->sc_log, 0, &snode, &node, 205 CTLFLAG_READWRITE, CTLTYPE_INT, buf + 1, NULL, 206 sony_sysctl_helper, 0, sc, 0, CTL_CREATE, CTL_EOL)) != 0) 207 goto out; 208 209 out: 210 #ifdef DIAGNOSTIC 211 if (rv) 212 printf("%s: sysctl_createv failed (rv = %d)\n", 213 device_xname(&sc->sc_dev), rv); 214 #endif 215 return AE_OK; 216 } 217 218 ACPI_STATUS 219 sony_acpi_eval_set_integer(ACPI_HANDLE handle, const char *path, 220 ACPI_INTEGER val, ACPI_INTEGER *valp) 221 { 222 ACPI_STATUS rv; 223 ACPI_BUFFER buf; 224 ACPI_OBJECT param, ret_val; 225 ACPI_OBJECT_LIST params; 226 227 if (handle == NULL) 228 handle = ACPI_ROOT_OBJECT; 229 230 params.Count = 1; 231 params.Pointer = ¶m; 232 233 param.Type = ACPI_TYPE_INTEGER; 234 param.Integer.Value = val; 235 236 buf.Pointer = &ret_val; 237 buf.Length = sizeof(ret_val); 238 239 rv = AcpiEvaluateObjectTyped(handle, path, ¶ms, &buf, 240 ACPI_TYPE_INTEGER); 241 242 if (ACPI_SUCCESS(rv) && valp) 243 *valp = ret_val.Integer.Value; 244 245 return rv; 246 } 247 248 static void 249 sony_acpi_attach(struct device *parent, struct device *self, void *aux) 250 { 251 struct sony_acpi_softc *sc = (void *)self; 252 struct acpi_attach_args *aa = aux; 253 ACPI_STATUS rv; 254 int i; 255 256 aprint_naive(": Sony Miscellaneous Controller\n"); 257 aprint_normal(": Sony Miscellaneous Controller\n"); 258 259 sc->sc_node = aa->aa_node; 260 261 rv = AcpiWalkNamespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, 100, 262 sony_acpi_find_pic, sc, NULL); 263 if (ACPI_FAILURE(rv)) 264 aprint_error_dev(self, "couldn't walk namespace: %s\n", 265 AcpiFormatException(rv)); 266 267 /* 268 * If we don't find an SNY6001 device, assume that we need the 269 * Fn key initialization sequence. 270 */ 271 if (sc->sc_has_pic == false) 272 sc->sc_quirks |= SONY_ACPI_QUIRK_FNINIT; 273 274 sony_acpi_quirk_setup(sc); 275 276 /* Configure suspend button and hotkeys */ 277 sc->sc_smpsw[SONY_PSW_SLEEP].smpsw_name = sc->sc_dev.dv_xname; 278 sc->sc_smpsw[SONY_PSW_SLEEP].smpsw_type = PSWITCH_TYPE_SLEEP; 279 sc->sc_smpsw[SONY_PSW_DISPLAY_CYCLE].smpsw_name = 280 PSWITCH_HK_DISPLAY_CYCLE; 281 sc->sc_smpsw[SONY_PSW_DISPLAY_CYCLE].smpsw_type = PSWITCH_TYPE_HOTKEY; 282 sc->sc_smpsw[SONY_PSW_ZOOM].smpsw_name = PSWITCH_HK_ZOOM_BUTTON; 283 sc->sc_smpsw[SONY_PSW_ZOOM].smpsw_type = PSWITCH_TYPE_HOTKEY; 284 sc->sc_smpsw_valid = 1; 285 286 for (i = 0; i < SONY_PSW_LAST; i++) 287 if (sysmon_pswitch_register(&sc->sc_smpsw[i]) != 0) { 288 aprint_error("%s: couldn't register %s with sysmon\n", 289 device_xname(self), sc->sc_smpsw[i].smpsw_name); 290 sc->sc_smpsw_valid = 0; 291 } 292 293 /* Install notify handler */ 294 rv = AcpiInstallNotifyHandler(sc->sc_node->ad_handle, 295 ACPI_DEVICE_NOTIFY, sony_acpi_notify_handler, self); 296 if (ACPI_FAILURE(rv)) 297 aprint_error("%s: couldn't install notify handler (%d)\n", 298 device_xname(self), rv); 299 300 /* Install sysctl handler */ 301 rv = AcpiWalkNamespace(ACPI_TYPE_METHOD, 302 sc->sc_node->ad_handle, 1, sony_walk_cb, sc, NULL); 303 #ifdef DIAGNOSTIC 304 if (ACPI_FAILURE(rv)) 305 aprint_error("%s: Cannot walk ACPI namespace (%d)\n", 306 device_xname(self), rv); 307 #endif 308 309 if (!pmf_device_register(self, sony_acpi_suspend, sony_acpi_resume)) 310 aprint_error_dev(self, "couldn't establish power handler\n"); 311 312 if (!pmf_event_register(self, PMFE_DISPLAY_BRIGHTNESS_UP, 313 sony_acpi_brightness_up, true)) 314 aprint_error_dev(self, "couldn't register BRIGHTNESS UP handler\n"); 315 316 if (!pmf_event_register(self, PMFE_DISPLAY_BRIGHTNESS_DOWN, 317 sony_acpi_brightness_down, true)) 318 aprint_error_dev(self, "couldn't register BRIGHTNESS DOWN handler\n"); 319 } 320 321 static void 322 sony_acpi_quirk_setup(struct sony_acpi_softc *sc) 323 { 324 ACPI_HANDLE hdl = sc->sc_node->ad_handle; 325 326 if (sc->sc_quirks & SONY_ACPI_QUIRK_FNINIT) { 327 /* Initialize extra Fn keys */ 328 sony_acpi_eval_set_integer(hdl, "SN02", 0x04, NULL); 329 sony_acpi_eval_set_integer(hdl, "SN07", 0x02, NULL); 330 sony_acpi_eval_set_integer(hdl, "SN02", 0x10, NULL); 331 sony_acpi_eval_set_integer(hdl, "SN07", 0x00, NULL); 332 sony_acpi_eval_set_integer(hdl, "SN03", 0x02, NULL); 333 sony_acpi_eval_set_integer(hdl, "SN07", 0x101, NULL); 334 } 335 } 336 337 static void 338 sony_acpi_notify_handler(ACPI_HANDLE hdl, UINT32 notify, void *opaque) 339 { 340 device_t dv = opaque; 341 struct sony_acpi_softc *sc = device_private(dv); 342 ACPI_STATUS rv; 343 ACPI_INTEGER arg; 344 int s; 345 346 if (notify == SONY_NOTIFY_FnKeyEvent) { 347 rv = sony_acpi_eval_set_integer(hdl, "SN07", 0x202, &arg); 348 if (ACPI_FAILURE(rv)) 349 return; 350 351 notify = arg & 0xff; 352 } 353 354 s = spltty(); 355 switch (notify) { 356 case SONY_NOTIFY_BrightnessDownPressed: 357 sony_acpi_brightness_down(dv); 358 break; 359 case SONY_NOTIFY_BrightnessUpPressed: 360 sony_acpi_brightness_up(dv); 361 break; 362 case SONY_NOTIFY_BrightnessDownReleased: 363 case SONY_NOTIFY_BrightnessUpReleased: 364 break; 365 case SONY_NOTIFY_SuspendPressed: 366 if (!sc->sc_smpsw_valid) 367 break; 368 sysmon_pswitch_event(&sc->sc_smpsw[SONY_PSW_SLEEP], 369 PSWITCH_EVENT_PRESSED); 370 break; 371 case SONY_NOTIFY_SuspendReleased: 372 break; 373 case SONY_NOTIFY_DisplaySwitchPressed: 374 if (!sc->sc_smpsw_valid) 375 break; 376 sysmon_pswitch_event(&sc->sc_smpsw[SONY_PSW_DISPLAY_CYCLE], 377 PSWITCH_EVENT_PRESSED); 378 break; 379 case SONY_NOTIFY_DisplaySwitchReleased: 380 break; 381 case SONY_NOTIFY_ZoomPressed: 382 if (!sc->sc_smpsw_valid) 383 break; 384 sysmon_pswitch_event(&sc->sc_smpsw[SONY_PSW_ZOOM], 385 PSWITCH_EVENT_PRESSED); 386 break; 387 case SONY_NOTIFY_ZoomReleased: 388 break; 389 default: 390 printf("%s: unknown notify event 0x%x\n", 391 device_xname(&sc->sc_dev), notify); 392 break; 393 } 394 splx(s); 395 } 396 397 static bool 398 sony_acpi_suspend(device_t dv) 399 { 400 struct sony_acpi_softc *sc = device_private(dv); 401 402 acpi_eval_integer(sc->sc_node->ad_handle, "GBRT", &sc->sc_pmstate.brt); 403 404 return true; 405 } 406 407 static bool 408 sony_acpi_resume(device_t dv) 409 { 410 struct sony_acpi_softc *sc = device_private(dv); 411 412 sony_acpi_eval_set_integer(sc->sc_node->ad_handle, "SBRT", 413 sc->sc_pmstate.brt, NULL); 414 sony_acpi_quirk_setup(sc); 415 416 return true; 417 } 418 419 static void 420 sony_acpi_brightness_up(device_t dv) 421 { 422 struct sony_acpi_softc *sc = device_private(dv); 423 ACPI_INTEGER arg; 424 ACPI_STATUS rv; 425 426 rv = acpi_eval_integer(sc->sc_node->ad_handle, "GBRT", &arg); 427 if (ACPI_FAILURE(rv)) 428 return; 429 if (arg >= 8) 430 arg = 8; 431 else 432 arg++; 433 sony_acpi_eval_set_integer(sc->sc_node->ad_handle, "SBRT", arg, NULL); 434 } 435 436 static void 437 sony_acpi_brightness_down(device_t dv) 438 { 439 struct sony_acpi_softc *sc = device_private(dv); 440 ACPI_INTEGER arg; 441 ACPI_STATUS rv; 442 443 rv = acpi_eval_integer(sc->sc_node->ad_handle, "GBRT", &arg); 444 if (ACPI_FAILURE(rv)) 445 return; 446 if (arg <= 0) 447 arg = 0; 448 else 449 arg--; 450 sony_acpi_eval_set_integer(sc->sc_node->ad_handle, "SBRT", arg, NULL); 451 } 452 453 static ACPI_STATUS 454 sony_acpi_find_pic(ACPI_HANDLE hdl, UINT32 level, void *opaque, void **status) 455 { 456 struct sony_acpi_softc *sc = opaque; 457 ACPI_BUFFER buf; 458 ACPI_STATUS rv; 459 ACPI_DEVICE_INFO *devinfo; 460 461 buf.Pointer = NULL; 462 buf.Length = ACPI_ALLOCATE_BUFFER; 463 rv = AcpiGetObjectInfo(hdl, &buf); 464 if (ACPI_FAILURE(rv) || buf.Pointer == NULL) 465 return AE_OK; /* we don't want to stop searching */ 466 467 devinfo = buf.Pointer; 468 if (strncmp(devinfo->HardwareId.Value, "SNY6001", 7) == 0) 469 sc->sc_has_pic = true; 470 471 AcpiOsFree(buf.Pointer); 472 473 return AE_OK; 474 } 475
Indexes created Thu Oct 02 07:10:07 GMT 2025