| 1 | /* $NetBSD: sony_acpi.c,v 1.23 2016/07/07 06:55:41 msaitoh 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 1.23 2016/07/07 06:55:41 msaitoh 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), |
| 126 | buf); |
| 127 | #endif |
| 128 | return EIO; |
| 129 | } |
| 130 | val = old_val = acpi_val; |
| 131 | |
| 132 | node = *rnode; |
| 133 | node.sysctl_data = &val; |
| 134 | |
| 135 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
| 136 | if (error || newp == NULL) |
| 137 | return error; |
| 138 | |
| 139 | buf[0] = 'S'; |
| 140 | acpi_val = val; |
| 141 | rv = sony_acpi_eval_set_integer(sc->sc_node->ad_handle, buf, |
| 142 | acpi_val, NULL); |
| 143 | if (ACPI_FAILURE(rv)) { |
| 144 | #ifdef DIAGNOSTIC |
| 145 | printf("%s: couldn't set `%s' to %d\n" , |
| 146 | device_xname(sc->sc_dev), buf, val); |
| 147 | #endif |
| 148 | return EIO; |
| 149 | } |
| 150 | return 0; |
| 151 | } |
| 152 | |
| 153 | static ACPI_STATUS |
| 154 | sony_walk_cb(ACPI_HANDLE hnd, uint32_t v, void *context, void **status) |
| 155 | { |
| 156 | struct sony_acpi_softc *sc = (void *)context; |
| 157 | const struct sysctlnode *node, *snode; |
| 158 | const char *name = acpi_name(hnd); |
| 159 | ACPI_INTEGER acpi_val; |
| 160 | char buf[SYSCTL_NAMELEN + 1], *ptr; |
| 161 | int rv; |
| 162 | |
| 163 | if ((name = strrchr(name, '.')) == NULL) |
| 164 | return AE_OK; |
| 165 | |
| 166 | name++; |
| 167 | if ((*name != 'G') && (*name != 'S')) |
| 168 | return AE_OK; |
| 169 | |
| 170 | (void)strlcpy(buf, name, sizeof(buf)); |
| 171 | *buf = 'G'; |
| 172 | |
| 173 | /* |
| 174 | * We assume that if the 'get' of the name as an integer is |
| 175 | * successful it is ok. |
| 176 | */ |
| 177 | if (acpi_eval_integer(sc->sc_node->ad_handle, buf, &acpi_val)) |
| 178 | return AE_OK; |
| 179 | |
| 180 | for (ptr = buf; *ptr; ptr++) |
| 181 | *ptr = tolower(*ptr); |
| 182 | |
| 183 | if ((rv = sysctl_createv(&sc->sc_log, 0, NULL, &snode, 0, |
| 184 | CTLTYPE_NODE, device_xname(sc->sc_dev), |
| 185 | SYSCTL_DESCR("sony controls" ), |
| 186 | NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) |
| 187 | goto out; |
| 188 | |
| 189 | if ((rv = sysctl_createv(&sc->sc_log, 0, &snode, &node, |
| 190 | CTLFLAG_READWRITE, CTLTYPE_INT, buf + 1, NULL, |
| 191 | sony_sysctl_helper, 0, (void *)sc, 0, CTL_CREATE, CTL_EOL)) != 0) |
| 192 | goto out; |
| 193 | |
| 194 | out: |
| 195 | #ifdef DIAGNOSTIC |
| 196 | if (rv) |
| 197 | printf("%s: sysctl_createv failed (rv = %d)\n" , |
| 198 | device_xname(sc->sc_dev), rv); |
| 199 | #endif |
| 200 | return AE_OK; |
| 201 | } |
| 202 | |
| 203 | ACPI_STATUS |
| 204 | sony_acpi_eval_set_integer(ACPI_HANDLE handle, const char *path, |
| 205 | ACPI_INTEGER val, ACPI_INTEGER *valp) |
| 206 | { |
| 207 | ACPI_STATUS rv; |
| 208 | ACPI_BUFFER buf; |
| 209 | ACPI_OBJECT param, ret_val; |
| 210 | ACPI_OBJECT_LIST params; |
| 211 | |
| 212 | if (handle == NULL) |
| 213 | handle = ACPI_ROOT_OBJECT; |
| 214 | |
| 215 | params.Count = 1; |
| 216 | params.Pointer = ¶m; |
| 217 | |
| 218 | param.Type = ACPI_TYPE_INTEGER; |
| 219 | param.Integer.Value = val; |
| 220 | |
| 221 | buf.Pointer = &ret_val; |
| 222 | buf.Length = sizeof(ret_val); |
| 223 | |
| 224 | rv = AcpiEvaluateObjectTyped(handle, path, ¶ms, &buf, |
| 225 | ACPI_TYPE_INTEGER); |
| 226 | |
| 227 | if (ACPI_SUCCESS(rv) && valp) |
| 228 | *valp = ret_val.Integer.Value; |
| 229 | |
| 230 | return rv; |
| 231 | } |
| 232 | |
| 233 | static void |
| 234 | sony_acpi_attach(device_t parent, device_t self, void *aux) |
| 235 | { |
| 236 | struct sony_acpi_softc *sc = device_private(self); |
| 237 | struct acpi_attach_args *aa = aux; |
| 238 | ACPI_STATUS rv; |
| 239 | int i; |
| 240 | |
| 241 | aprint_naive(": Sony Miscellaneous Controller\n" ); |
| 242 | aprint_normal(": Sony Miscellaneous Controller\n" ); |
| 243 | |
| 244 | sc->sc_node = aa->aa_node; |
| 245 | sc->sc_dev = self; |
| 246 | |
| 247 | rv = AcpiWalkNamespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, 100, |
| 248 | sony_acpi_find_pic, NULL, sc, NULL); |
| 249 | if (ACPI_FAILURE(rv)) |
| 250 | aprint_error_dev(self, "couldn't walk namespace: %s\n" , |
| 251 | AcpiFormatException(rv)); |
| 252 | |
| 253 | /* |
| 254 | * If we don't find an SNY6001 device, assume that we need the |
| 255 | * Fn key initialization sequence. |
| 256 | */ |
| 257 | if (sc->sc_has_pic == false) |
| 258 | sc->sc_quirks |= SONY_ACPI_QUIRK_FNINIT; |
| 259 | |
| 260 | sony_acpi_quirk_setup(sc); |
| 261 | |
| 262 | /* Configure suspend button and hotkeys */ |
| 263 | sc->sc_smpsw[SONY_PSW_SLEEP].smpsw_name = device_xname(self); |
| 264 | sc->sc_smpsw[SONY_PSW_SLEEP].smpsw_type = PSWITCH_TYPE_SLEEP; |
| 265 | sc->sc_smpsw[SONY_PSW_DISPLAY_CYCLE].smpsw_name = |
| 266 | PSWITCH_HK_DISPLAY_CYCLE; |
| 267 | sc->sc_smpsw[SONY_PSW_DISPLAY_CYCLE].smpsw_type = PSWITCH_TYPE_HOTKEY; |
| 268 | sc->sc_smpsw[SONY_PSW_ZOOM].smpsw_name = PSWITCH_HK_ZOOM_BUTTON; |
| 269 | sc->sc_smpsw[SONY_PSW_ZOOM].smpsw_type = PSWITCH_TYPE_HOTKEY; |
| 270 | sc->sc_smpsw_valid = 1; |
| 271 | |
| 272 | for (i = 0; i < SONY_PSW_LAST; i++) |
| 273 | if (sysmon_pswitch_register(&sc->sc_smpsw[i]) != 0) { |
| 274 | aprint_error_dev(self, |
| 275 | "couldn't register %s with sysmon\n" , |
| 276 | sc->sc_smpsw[i].smpsw_name); |
| 277 | sc->sc_smpsw_valid = 0; |
| 278 | } |
| 279 | |
| 280 | (void)acpi_register_notify(sc->sc_node, sony_acpi_notify_handler); |
| 281 | |
| 282 | /* Install sysctl handler */ |
| 283 | rv = AcpiWalkNamespace(ACPI_TYPE_METHOD, |
| 284 | sc->sc_node->ad_handle, 1, sony_walk_cb, NULL, sc, NULL); |
| 285 | |
| 286 | #ifdef DIAGNOSTIC |
| 287 | if (ACPI_FAILURE(rv)) |
| 288 | aprint_error_dev(self, "Cannot walk ACPI namespace (%u)\n" , |
| 289 | rv); |
| 290 | #endif |
| 291 | |
| 292 | if (!pmf_device_register(self, sony_acpi_suspend, sony_acpi_resume)) |
| 293 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
| 294 | |
| 295 | if (!pmf_event_register(self, PMFE_DISPLAY_BRIGHTNESS_UP, |
| 296 | sony_acpi_brightness_up, true)) |
| 297 | aprint_error_dev(self, |
| 298 | "couldn't register BRIGHTNESS UP handler\n" ); |
| 299 | |
| 300 | if (!pmf_event_register(self, PMFE_DISPLAY_BRIGHTNESS_DOWN, |
| 301 | sony_acpi_brightness_down, true)) |
| 302 | aprint_error_dev(self, |
| 303 | "couldn't register BRIGHTNESS DOWN handler\n" ); |
| 304 | } |
| 305 | |
| 306 | static void |
| 307 | sony_acpi_quirk_setup(struct sony_acpi_softc *sc) |
| 308 | { |
| 309 | ACPI_HANDLE hdl = sc->sc_node->ad_handle; |
| 310 | |
| 311 | if (sc->sc_quirks & SONY_ACPI_QUIRK_FNINIT) { |
| 312 | /* Initialize extra Fn keys */ |
| 313 | sony_acpi_eval_set_integer(hdl, "SN02" , 0x04, NULL); |
| 314 | sony_acpi_eval_set_integer(hdl, "SN07" , 0x02, NULL); |
| 315 | sony_acpi_eval_set_integer(hdl, "SN02" , 0x10, NULL); |
| 316 | sony_acpi_eval_set_integer(hdl, "SN07" , 0x00, NULL); |
| 317 | sony_acpi_eval_set_integer(hdl, "SN03" , 0x02, NULL); |
| 318 | sony_acpi_eval_set_integer(hdl, "SN07" , 0x101, NULL); |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | static void |
| 323 | sony_acpi_notify_handler(ACPI_HANDLE hdl, uint32_t notify, void *opaque) |
| 324 | { |
| 325 | device_t dv = opaque; |
| 326 | struct sony_acpi_softc *sc = device_private(dv); |
| 327 | ACPI_STATUS rv; |
| 328 | ACPI_INTEGER arg; |
| 329 | |
| 330 | if (notify == SONY_NOTIFY_FnKeyEvent) { |
| 331 | rv = sony_acpi_eval_set_integer(hdl, "SN07" , 0x202, &arg); |
| 332 | if (ACPI_FAILURE(rv)) |
| 333 | return; |
| 334 | |
| 335 | notify = arg & 0xff; |
| 336 | } |
| 337 | |
| 338 | switch (notify) { |
| 339 | case SONY_NOTIFY_BrightnessDownPressed: |
| 340 | sony_acpi_brightness_down(dv); |
| 341 | break; |
| 342 | case SONY_NOTIFY_BrightnessUpPressed: |
| 343 | sony_acpi_brightness_up(dv); |
| 344 | break; |
| 345 | case SONY_NOTIFY_BrightnessDownReleased: |
| 346 | case SONY_NOTIFY_BrightnessUpReleased: |
| 347 | break; |
| 348 | case SONY_NOTIFY_SuspendPressed: |
| 349 | if (!sc->sc_smpsw_valid) |
| 350 | break; |
| 351 | sysmon_pswitch_event(&sc->sc_smpsw[SONY_PSW_SLEEP], |
| 352 | PSWITCH_EVENT_PRESSED); |
| 353 | break; |
| 354 | case SONY_NOTIFY_SuspendReleased: |
| 355 | break; |
| 356 | case SONY_NOTIFY_DisplaySwitchPressed: |
| 357 | if (!sc->sc_smpsw_valid) |
| 358 | break; |
| 359 | sysmon_pswitch_event(&sc->sc_smpsw[SONY_PSW_DISPLAY_CYCLE], |
| 360 | PSWITCH_EVENT_PRESSED); |
| 361 | break; |
| 362 | case SONY_NOTIFY_DisplaySwitchReleased: |
| 363 | break; |
| 364 | case SONY_NOTIFY_ZoomPressed: |
| 365 | if (!sc->sc_smpsw_valid) |
| 366 | break; |
| 367 | sysmon_pswitch_event(&sc->sc_smpsw[SONY_PSW_ZOOM], |
| 368 | PSWITCH_EVENT_PRESSED); |
| 369 | break; |
| 370 | case SONY_NOTIFY_ZoomReleased: |
| 371 | break; |
| 372 | default: |
| 373 | aprint_debug_dev(dv, "unknown notify event 0x%x\n" , notify); |
| 374 | break; |
| 375 | } |
| 376 | } |
| 377 | |
| 378 | static bool |
| 379 | sony_acpi_suspend(device_t dv, const pmf_qual_t *qual) |
| 380 | { |
| 381 | struct sony_acpi_softc *sc = device_private(dv); |
| 382 | |
| 383 | acpi_eval_integer(sc->sc_node->ad_handle, "GBRT" , &sc->sc_pmstate.brt); |
| 384 | |
| 385 | return true; |
| 386 | } |
| 387 | |
| 388 | static bool |
| 389 | sony_acpi_resume(device_t dv, const pmf_qual_t *qual) |
| 390 | { |
| 391 | struct sony_acpi_softc *sc = device_private(dv); |
| 392 | |
| 393 | sony_acpi_eval_set_integer(sc->sc_node->ad_handle, "SBRT" , |
| 394 | sc->sc_pmstate.brt, NULL); |
| 395 | sony_acpi_quirk_setup(sc); |
| 396 | |
| 397 | return true; |
| 398 | } |
| 399 | |
| 400 | static void |
| 401 | sony_acpi_brightness_up(device_t dv) |
| 402 | { |
| 403 | struct sony_acpi_softc *sc = device_private(dv); |
| 404 | ACPI_INTEGER arg; |
| 405 | ACPI_STATUS rv; |
| 406 | |
| 407 | rv = acpi_eval_integer(sc->sc_node->ad_handle, "GBRT" , &arg); |
| 408 | if (ACPI_FAILURE(rv)) |
| 409 | return; |
| 410 | if (arg >= 8) |
| 411 | arg = 8; |
| 412 | else |
| 413 | arg++; |
| 414 | sony_acpi_eval_set_integer(sc->sc_node->ad_handle, "SBRT" , arg, NULL); |
| 415 | } |
| 416 | |
| 417 | static void |
| 418 | sony_acpi_brightness_down(device_t dv) |
| 419 | { |
| 420 | struct sony_acpi_softc *sc = device_private(dv); |
| 421 | ACPI_INTEGER arg; |
| 422 | ACPI_STATUS rv; |
| 423 | |
| 424 | rv = acpi_eval_integer(sc->sc_node->ad_handle, "GBRT" , &arg); |
| 425 | if (ACPI_FAILURE(rv)) |
| 426 | return; |
| 427 | if (arg <= 0) |
| 428 | arg = 0; |
| 429 | else |
| 430 | arg--; |
| 431 | sony_acpi_eval_set_integer(sc->sc_node->ad_handle, "SBRT" , arg, NULL); |
| 432 | } |
| 433 | |
| 434 | static ACPI_STATUS |
| 435 | sony_acpi_find_pic(ACPI_HANDLE hdl, uint32_t level, |
| 436 | void *opaque, void **status) |
| 437 | { |
| 438 | struct sony_acpi_softc *sc = opaque; |
| 439 | ACPI_STATUS rv; |
| 440 | ACPI_DEVICE_INFO *devinfo; |
| 441 | |
| 442 | rv = AcpiGetObjectInfo(hdl, &devinfo); |
| 443 | if (ACPI_FAILURE(rv) || devinfo == NULL) |
| 444 | return AE_OK; /* we don't want to stop searching */ |
| 445 | |
| 446 | if ((devinfo->Valid & ACPI_VALID_HID) != 0 && |
| 447 | devinfo->HardwareId.String && |
| 448 | strncmp(devinfo->HardwareId.String, "SNY6001" , 7) == 0) |
| 449 | sc->sc_has_pic = true; |
| 450 | |
| 451 | ACPI_FREE(devinfo); |
| 452 | |
| 453 | return AE_OK; |
| 454 | } |
| 455 | |