40/* 41 * Toshiba HCI interface definitions 42 * 43 * HCI is Toshiba's "Hardware Control Interface" which is supposed to 44 * be uniform across all their models. Ideally we would just call 45 * dedicated ACPI methods instead of using this primitive interface. 46 * However, the ACPI methods seem to be incomplete in some areas (for 47 * example they allow setting, but not reading, the LCD brightness 48 * value), so this is still useful. 49 */ 50 51#define METHOD_HCI "GHCI" 52#define METHOD_HCI_ENABLE "ENAB" 53#define METHOD_VIDEO "DSSX" 54 55/* Operations */ 56#define HCI_SET 0xFF00 57#define HCI_GET 0xFE00 58 59/* Return codes */ 60#define HCI_SUCCESS 0x0000 61#define HCI_FAILURE 0x1000 62#define HCI_NOT_SUPPORTED 0x8000 63#define HCI_EMPTY 0x8C00 64 65/* Functions */ 66#define HCI_REG_LCD_BACKLIGHT 0x0002 67#define HCI_REG_FAN 0x0004 68#define HCI_REG_SYSTEM_EVENT 0x0016 69#define HCI_REG_VIDEO_OUTPUT 0x001C 70#define HCI_REG_HOTKEY_EVENT 0x001E 71#define HCI_REG_LCD_BRIGHTNESS 0x002A 72#define HCI_REG_CPU_SPEED 0x0032 73 74/* Field definitions */ 75#define HCI_FAN_SHIFT 7 76#define HCI_LCD_BRIGHTNESS_BITS 3 77#define HCI_LCD_BRIGHTNESS_SHIFT (16 - HCI_LCD_BRIGHTNESS_BITS) 78#define HCI_LCD_BRIGHTNESS_MAX ((1 << HCI_LCD_BRIGHTNESS_BITS) - 1) 79#define HCI_VIDEO_OUTPUT_FLAG 0x0100 80#define HCI_VIDEO_OUTPUT_LCD 0x1 81#define HCI_VIDEO_OUTPUT_CRT 0x2 82#define HCI_VIDEO_OUTPUT_TV 0x4 83#define HCI_CPU_SPEED_BITS 3 84#define HCI_CPU_SPEED_SHIFT (16 - HCI_CPU_SPEED_BITS) 85#define HCI_CPU_SPEED_MAX ((1 << HCI_CPU_SPEED_BITS) - 1) 86 87/* Key press/release events. */ 88#define FN_F1_PRESS 0x013B 89#define FN_F1_RELEASE 0x01BB 90#define FN_F2_PRESS 0x013C 91#define FN_F2_RELEASE 0x01BC 92#define FN_F3_PRESS 0x013D 93#define FN_F3_RELEASE 0x01BD 94#define FN_F4_PRESS 0x013E 95#define FN_F4_RELEASE 0x01BE 96#define FN_F5_PRESS 0x013F 97#define FN_F5_RELEASE 0x01BF 98#define FN_F6_PRESS 0x0140 99#define FN_F6_RELEASE 0x01C0 100#define FN_F7_PRESS 0x0141 101#define FN_F7_RELEASE 0x01C1 102#define FN_F8_PRESS 0x0142 103#define FN_F8_RELEASE 0x01C2 104#define FN_F9_PRESS 0x0143 105#define FN_F9_RELEASE 0x01C3 106#define FN_BS_PRESS 0x010E 107#define FN_BS_RELEASE 0x018E 108#define FN_ESC_PRESS 0x0101 109#define FN_ESC_RELEASE 0x0181 110#define FN_KNJ_PRESS 0x0129 111#define FN_KNJ_RELEASE 0x01A9 112 113/* HCI register definitions. */ 114#define HCI_WORDS 6 /* Number of registers */ 115#define HCI_REG_AX 0 /* Operation, then return value */ 116#define HCI_REG_BX 1 /* Function */ 117#define HCI_REG_CX 2 /* Argument (in or out) */ 118#define HCI_REG_DX 3 /* Unused? */ 119#define HCI_REG_SI 4 /* Unused? */ 120#define HCI_REG_DI 5 /* Unused? */ 121 122struct acpi_toshiba_softc { 123 device_t dev; 124 ACPI_HANDLE handle; 125 ACPI_HANDLE video_handle; 126 struct sysctl_ctx_list sysctl_ctx; 127 struct sysctl_oid *sysctl_tree; 128}; 129 130/* Prototype for HCI functions for getting/setting a value. */ 131typedef int hci_fn_t(ACPI_HANDLE, int, UINT32 *); 132 133static int acpi_toshiba_probe(device_t dev); 134static int acpi_toshiba_attach(device_t dev); 135static int acpi_toshiba_detach(device_t dev); 136static int acpi_toshiba_sysctl(SYSCTL_HANDLER_ARGS); 137static hci_fn_t hci_force_fan; 138static hci_fn_t hci_video_output; 139static hci_fn_t hci_lcd_brightness; 140static hci_fn_t hci_lcd_backlight; 141static hci_fn_t hci_cpu_speed; 142static int hci_call(ACPI_HANDLE h, int op, int function, UINT32 *arg); 143static void hci_key_action(struct acpi_toshiba_softc *sc, ACPI_HANDLE h, 144 UINT32 key); 145static void acpi_toshiba_notify(ACPI_HANDLE h, UINT32 notify, 146 void *context); 147static int acpi_toshiba_video_probe(device_t dev); 148static int acpi_toshiba_video_attach(device_t dev); 149 150ACPI_SERIAL_DECL(toshiba, "ACPI Toshiba Extras"); 151 152/* Table of sysctl names and HCI functions to call. */ 153static struct { 154 char *name; 155 hci_fn_t *handler; 156} sysctl_table[] = { 157 /* name, handler */ 158 {"force_fan", hci_force_fan}, 159 {"video_output", hci_video_output}, 160 {"lcd_brightness", hci_lcd_brightness}, 161 {"lcd_backlight", hci_lcd_backlight}, 162 {"cpu_speed", hci_cpu_speed}, 163 {NULL, NULL} 164}; 165 166static device_method_t acpi_toshiba_methods[] = { 167 DEVMETHOD(device_probe, acpi_toshiba_probe), 168 DEVMETHOD(device_attach, acpi_toshiba_attach), 169 DEVMETHOD(device_detach, acpi_toshiba_detach), 170 171 {0, 0} 172}; 173 174static driver_t acpi_toshiba_driver = { 175 "acpi_toshiba", 176 acpi_toshiba_methods, 177 sizeof(struct acpi_toshiba_softc), 178}; 179 180static devclass_t acpi_toshiba_devclass; 181DRIVER_MODULE(acpi_toshiba, acpi, acpi_toshiba_driver, acpi_toshiba_devclass, 182 0, 0); 183MODULE_DEPEND(acpi_toshiba, acpi, 1, 1, 1); 184 185static device_method_t acpi_toshiba_video_methods[] = { 186 DEVMETHOD(device_probe, acpi_toshiba_video_probe), 187 DEVMETHOD(device_attach, acpi_toshiba_video_attach), 188 189 {0, 0} 190}; 191 192static driver_t acpi_toshiba_video_driver = { 193 "acpi_toshiba_video", 194 acpi_toshiba_video_methods, 195 0, 196}; 197 198static devclass_t acpi_toshiba_video_devclass; 199DRIVER_MODULE(acpi_toshiba_video, acpi, acpi_toshiba_video_driver, 200 acpi_toshiba_video_devclass, 0, 0); 201MODULE_DEPEND(acpi_toshiba_video, acpi, 1, 1, 1); 202 203static int enable_fn_keys = 1; 204TUNABLE_INT("hw.acpi.toshiba.enable_fn_keys", &enable_fn_keys); 205 206/* 207 * HID Model 208 * ------------------------------------- 209 * TOS6200 Libretto L Series 210 * Dynabook Satellite 2455 211 * Dynabook SS 3500 212 * TOS6207 Dynabook SS2110 Series 213 */ 214static int 215acpi_toshiba_probe(device_t dev) 216{ 217 static char *tosh_ids[] = { "TOS6200", "TOS6207", NULL }; 218 219 if (acpi_disabled("toshiba") || 220 ACPI_ID_PROBE(device_get_parent(dev), dev, tosh_ids) == NULL || 221 device_get_unit(dev) != 0) 222 return (ENXIO); 223 224 device_set_desc(dev, "Toshiba HCI Extras"); 225 return (0); 226} 227 228static int 229acpi_toshiba_attach(device_t dev) 230{ 231 struct acpi_toshiba_softc *sc; 232 struct acpi_softc *acpi_sc; 233 ACPI_STATUS status; 234 int i; 235 236 sc = device_get_softc(dev); 237 sc->dev = dev; 238 sc->handle = acpi_get_handle(dev); 239 240 acpi_sc = acpi_device_get_parent_softc(dev); 241 sysctl_ctx_init(&sc->sysctl_ctx); 242 sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx, 243 SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO, 244 "toshiba", CTLFLAG_RD, 0, ""); 245 246 for (i = 0; sysctl_table[i].name != NULL; i++) { 247 SYSCTL_ADD_PROC(&sc->sysctl_ctx, 248 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 249 sysctl_table[i].name, 250 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY, 251 sc, i, acpi_toshiba_sysctl, "I", ""); 252 } 253 254 if (enable_fn_keys != 0) { 255 status = AcpiEvaluateObject(sc->handle, METHOD_HCI_ENABLE, 256 NULL, NULL); 257 if (ACPI_FAILURE(status)) { 258 device_printf(dev, "enable FN keys failed\n"); 259 sysctl_ctx_free(&sc->sysctl_ctx); 260 return (ENXIO); 261 } 262 AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, 263 acpi_toshiba_notify, sc); 264 } 265 266 return (0); 267} 268 269static int 270acpi_toshiba_detach(device_t dev) 271{ 272 struct acpi_toshiba_softc *sc; 273 274 sc = device_get_softc(dev); 275 if (enable_fn_keys != 0) { 276 AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, 277 acpi_toshiba_notify); 278 } 279 sysctl_ctx_free(&sc->sysctl_ctx); 280 281 return (0); 282} 283 284static int 285acpi_toshiba_sysctl(SYSCTL_HANDLER_ARGS) 286{ 287 struct acpi_toshiba_softc *sc; 288 UINT32 arg; 289 int function, error = 0; 290 hci_fn_t *handler; 291 292 sc = (struct acpi_toshiba_softc *)oidp->oid_arg1; 293 function = oidp->oid_arg2; 294 handler = sysctl_table[function].handler; 295 296 /* Get the current value from the appropriate function. */ 297 ACPI_SERIAL_BEGIN(toshiba); 298 error = handler(sc->handle, HCI_GET, &arg); 299 if (error != 0) 300 goto out; 301 302 /* Send the current value to the user and return if no new value. */ 303 error = sysctl_handle_int(oidp, &arg, 0, req); 304 if (error != 0 || req->newptr == NULL) 305 goto out; 306 307 /* Set the new value via the appropriate function. */ 308 error = handler(sc->handle, HCI_SET, &arg); 309 310out: 311 ACPI_SERIAL_END(toshiba); 312 return (error); 313} 314 315static int 316hci_force_fan(ACPI_HANDLE h, int op, UINT32 *state) 317{ 318 int ret; 319 320 ACPI_SERIAL_ASSERT(toshiba); 321 if (op == HCI_SET) { 322 if (*state < 0 || *state > 1) 323 return (EINVAL); 324 *state <<= HCI_FAN_SHIFT; 325 } 326 ret = hci_call(h, op, HCI_REG_FAN, state); 327 if (ret == 0 && op == HCI_GET) 328 *state >>= HCI_FAN_SHIFT; 329 return (ret); 330} 331 332static int 333hci_video_output(ACPI_HANDLE h, int op, UINT32 *video_output) 334{ 335 int ret; 336 ACPI_STATUS status; 337 338 ACPI_SERIAL_ASSERT(toshiba); 339 if (op == HCI_SET) { 340 if (*video_output < 1 || *video_output > 7) 341 return (EINVAL); 342 if (h == NULL) 343 return (ENXIO); 344 *video_output |= HCI_VIDEO_OUTPUT_FLAG; 345 status = acpi_SetInteger(h, METHOD_VIDEO, *video_output); 346 if (ACPI_SUCCESS(status)) 347 ret = 0; 348 else 349 ret = ENXIO; 350 } else { 351 ret = hci_call(h, op, HCI_REG_VIDEO_OUTPUT, video_output); 352 if (ret == 0) 353 *video_output &= 0xff; 354 } 355 356 return (ret); 357} 358 359static int 360hci_lcd_brightness(ACPI_HANDLE h, int op, UINT32 *brightness) 361{ 362 int ret; 363 364 ACPI_SERIAL_ASSERT(toshiba); 365 if (op == HCI_SET) { 366 if (*brightness < 0 || *brightness > HCI_LCD_BRIGHTNESS_MAX) 367 return (EINVAL); 368 *brightness <<= HCI_LCD_BRIGHTNESS_SHIFT; 369 } 370 ret = hci_call(h, op, HCI_REG_LCD_BRIGHTNESS, brightness); 371 if (ret == 0 && op == HCI_GET) 372 *brightness >>= HCI_LCD_BRIGHTNESS_SHIFT; 373 return (ret); 374} 375 376static int 377hci_lcd_backlight(ACPI_HANDLE h, int op, UINT32 *backlight) 378{ 379 380 ACPI_SERIAL_ASSERT(toshiba); 381 if (op == HCI_SET) { 382 if (*backlight < 0 || *backlight > 1) 383 return (EINVAL); 384 } 385 return (hci_call(h, op, HCI_REG_LCD_BACKLIGHT, backlight)); 386} 387 388static int 389hci_cpu_speed(ACPI_HANDLE h, int op, UINT32 *speed) 390{ 391 int ret; 392 393 ACPI_SERIAL_ASSERT(toshiba); 394 if (op == HCI_SET) { 395 if (*speed < 0 || *speed > HCI_CPU_SPEED_MAX) 396 return (EINVAL); 397 *speed <<= HCI_CPU_SPEED_SHIFT; 398 } 399 ret = hci_call(h, op, HCI_REG_CPU_SPEED, speed); 400 if (ret == 0 && op == HCI_GET) 401 *speed >>= HCI_CPU_SPEED_SHIFT; 402 return (ret); 403} 404 405static int 406hci_call(ACPI_HANDLE h, int op, int function, UINT32 *arg) 407{ 408 ACPI_OBJECT_LIST args; 409 ACPI_BUFFER results; 410 ACPI_OBJECT obj[HCI_WORDS]; 411 ACPI_OBJECT *res; 412 int status, i, ret; 413 414 ACPI_SERIAL_ASSERT(toshiba); 415 status = ENXIO; 416 417 for (i = 0; i < HCI_WORDS; i++) { 418 obj[i].Type = ACPI_TYPE_INTEGER; 419 obj[i].Integer.Value = 0; 420 } 421 obj[HCI_REG_AX].Integer.Value = op; 422 obj[HCI_REG_BX].Integer.Value = function; 423 if (op == HCI_SET) 424 obj[HCI_REG_CX].Integer.Value = *arg; 425 426 args.Count = HCI_WORDS; 427 args.Pointer = obj; 428 results.Pointer = NULL; 429 results.Length = ACPI_ALLOCATE_BUFFER; 430 if (ACPI_FAILURE(AcpiEvaluateObject(h, METHOD_HCI, &args, &results))) 431 goto end; 432 res = (ACPI_OBJECT *)results.Pointer; 433 if (!ACPI_PKG_VALID(res, HCI_WORDS)) { 434 printf("toshiba: invalid package!\n"); 435 return (ENXIO); 436 } 437 438 acpi_PkgInt32(res, HCI_REG_AX, &ret); 439 if (ret == HCI_SUCCESS) { 440 if (op == HCI_GET) 441 acpi_PkgInt32(res, HCI_REG_CX, arg); 442 status = 0; 443 } else if (function == HCI_REG_SYSTEM_EVENT && op == HCI_GET && 444 ret == HCI_NOT_SUPPORTED) { 445 /* 446 * Sometimes system events are disabled without us requesting 447 * it. This workaround attempts to re-enable them. 448 * 449 * XXX This call probably shouldn't be recursive. Queueing 450 * a task via AcpiOsQueueForExecution() might be better. 451 */ 452 i = 1; 453 hci_call(h, HCI_SET, HCI_REG_SYSTEM_EVENT, &i); 454 } 455 456end: 457 if (results.Pointer != NULL) 458 AcpiOsFree(results.Pointer); 459 460 return (status); 461} 462 463/* 464 * Perform a few actions based on the keypress. Users can extend this 465 * functionality by reading the keystrokes we send to devd(8). 466 */ 467static void 468hci_key_action(struct acpi_toshiba_softc *sc, ACPI_HANDLE h, UINT32 key) 469{ 470 UINT32 arg; 471 472 ACPI_SERIAL_ASSERT(toshiba); 473 switch (key) { 474 case FN_F6_RELEASE: 475 /* Decrease LCD brightness. */ 476 hci_lcd_brightness(h, HCI_GET, &arg); 477 if (arg-- == 0) 478 arg = 0; 479 else 480 hci_lcd_brightness(h, HCI_SET, &arg); 481 break; 482 case FN_F7_RELEASE: 483 /* Increase LCD brightness. */ 484 hci_lcd_brightness(h, HCI_GET, &arg); 485 if (arg++ == 7) 486 arg = 7; 487 else 488 hci_lcd_brightness(h, HCI_SET, &arg); 489 break; 490 case FN_F5_RELEASE: 491 /* Cycle through video outputs. */ 492 hci_video_output(h, HCI_GET, &arg); 493 arg = (arg + 1) % 7; 494 hci_video_output(sc->video_handle, HCI_SET, &arg); 495 break; 496 case FN_F8_RELEASE: 497 /* Toggle LCD backlight. */ 498 hci_lcd_backlight(h, HCI_GET, &arg); 499 arg = (arg != 0) ? 0 : 1; 500 hci_lcd_backlight(h, HCI_SET, &arg); 501 break; 502 case FN_ESC_RELEASE: 503 /* Toggle forcing fan on. */ 504 hci_force_fan(h, HCI_GET, &arg); 505 arg = (arg != 0) ? 0 : 1; 506 hci_force_fan(h, HCI_SET, &arg); 507 break; 508 } 509} 510 511static void 512acpi_toshiba_notify(ACPI_HANDLE h, UINT32 notify, void *context) 513{ 514 struct acpi_toshiba_softc *sc; 515 UINT32 key; 516 517 sc = (struct acpi_toshiba_softc *)context; 518 519 if (notify == 0x80) { 520 ACPI_SERIAL_BEGIN(toshiba); 521 while (hci_call(h, HCI_GET, HCI_REG_SYSTEM_EVENT, &key) == 0) { 522 hci_key_action(sc, h, key); 523 acpi_UserNotify("TOSHIBA", h, (uint8_t)key); 524 } 525 ACPI_SERIAL_END(toshiba); 526 } else 527 device_printf(sc->dev, "unknown notify: 0x%x\n", notify); 528} 529 530/* 531 * Toshiba video pseudo-device to provide the DSSX method. 532 * 533 * HID Model 534 * ------------------------------------- 535 * TOS6201 Libretto L Series 536 */ 537static int 538acpi_toshiba_video_probe(device_t dev) 539{ 540 static char *vid_ids[] = { "TOS6201", NULL }; 541 542 if (acpi_disabled("toshiba") || 543 ACPI_ID_PROBE(device_get_parent(dev), dev, vid_ids) == NULL || 544 device_get_unit(dev) != 0) 545 return (ENXIO); 546 547 device_quiet(dev); 548 device_set_desc(dev, "Toshiba Video"); 549 return (0); 550} 551 552static int 553acpi_toshiba_video_attach(device_t dev) 554{ 555 struct acpi_toshiba_softc *sc; 556 557 sc = devclass_get_softc(acpi_toshiba_devclass, 0); 558 if (sc == NULL) 559 return (ENXIO); 560 sc->video_handle = acpi_get_handle(dev); 561 return (0); 562}
| 43/* 44 * Toshiba HCI interface definitions 45 * 46 * HCI is Toshiba's "Hardware Control Interface" which is supposed to 47 * be uniform across all their models. Ideally we would just call 48 * dedicated ACPI methods instead of using this primitive interface. 49 * However, the ACPI methods seem to be incomplete in some areas (for 50 * example they allow setting, but not reading, the LCD brightness 51 * value), so this is still useful. 52 */ 53 54#define METHOD_HCI "GHCI" 55#define METHOD_HCI_ENABLE "ENAB" 56#define METHOD_VIDEO "DSSX" 57 58/* Operations */ 59#define HCI_SET 0xFF00 60#define HCI_GET 0xFE00 61 62/* Return codes */ 63#define HCI_SUCCESS 0x0000 64#define HCI_FAILURE 0x1000 65#define HCI_NOT_SUPPORTED 0x8000 66#define HCI_EMPTY 0x8C00 67 68/* Functions */ 69#define HCI_REG_LCD_BACKLIGHT 0x0002 70#define HCI_REG_FAN 0x0004 71#define HCI_REG_SYSTEM_EVENT 0x0016 72#define HCI_REG_VIDEO_OUTPUT 0x001C 73#define HCI_REG_HOTKEY_EVENT 0x001E 74#define HCI_REG_LCD_BRIGHTNESS 0x002A 75#define HCI_REG_CPU_SPEED 0x0032 76 77/* Field definitions */ 78#define HCI_FAN_SHIFT 7 79#define HCI_LCD_BRIGHTNESS_BITS 3 80#define HCI_LCD_BRIGHTNESS_SHIFT (16 - HCI_LCD_BRIGHTNESS_BITS) 81#define HCI_LCD_BRIGHTNESS_MAX ((1 << HCI_LCD_BRIGHTNESS_BITS) - 1) 82#define HCI_VIDEO_OUTPUT_FLAG 0x0100 83#define HCI_VIDEO_OUTPUT_LCD 0x1 84#define HCI_VIDEO_OUTPUT_CRT 0x2 85#define HCI_VIDEO_OUTPUT_TV 0x4 86#define HCI_CPU_SPEED_BITS 3 87#define HCI_CPU_SPEED_SHIFT (16 - HCI_CPU_SPEED_BITS) 88#define HCI_CPU_SPEED_MAX ((1 << HCI_CPU_SPEED_BITS) - 1) 89 90/* Key press/release events. */ 91#define FN_F1_PRESS 0x013B 92#define FN_F1_RELEASE 0x01BB 93#define FN_F2_PRESS 0x013C 94#define FN_F2_RELEASE 0x01BC 95#define FN_F3_PRESS 0x013D 96#define FN_F3_RELEASE 0x01BD 97#define FN_F4_PRESS 0x013E 98#define FN_F4_RELEASE 0x01BE 99#define FN_F5_PRESS 0x013F 100#define FN_F5_RELEASE 0x01BF 101#define FN_F6_PRESS 0x0140 102#define FN_F6_RELEASE 0x01C0 103#define FN_F7_PRESS 0x0141 104#define FN_F7_RELEASE 0x01C1 105#define FN_F8_PRESS 0x0142 106#define FN_F8_RELEASE 0x01C2 107#define FN_F9_PRESS 0x0143 108#define FN_F9_RELEASE 0x01C3 109#define FN_BS_PRESS 0x010E 110#define FN_BS_RELEASE 0x018E 111#define FN_ESC_PRESS 0x0101 112#define FN_ESC_RELEASE 0x0181 113#define FN_KNJ_PRESS 0x0129 114#define FN_KNJ_RELEASE 0x01A9 115 116/* HCI register definitions. */ 117#define HCI_WORDS 6 /* Number of registers */ 118#define HCI_REG_AX 0 /* Operation, then return value */ 119#define HCI_REG_BX 1 /* Function */ 120#define HCI_REG_CX 2 /* Argument (in or out) */ 121#define HCI_REG_DX 3 /* Unused? */ 122#define HCI_REG_SI 4 /* Unused? */ 123#define HCI_REG_DI 5 /* Unused? */ 124 125struct acpi_toshiba_softc { 126 device_t dev; 127 ACPI_HANDLE handle; 128 ACPI_HANDLE video_handle; 129 struct sysctl_ctx_list sysctl_ctx; 130 struct sysctl_oid *sysctl_tree; 131}; 132 133/* Prototype for HCI functions for getting/setting a value. */ 134typedef int hci_fn_t(ACPI_HANDLE, int, UINT32 *); 135 136static int acpi_toshiba_probe(device_t dev); 137static int acpi_toshiba_attach(device_t dev); 138static int acpi_toshiba_detach(device_t dev); 139static int acpi_toshiba_sysctl(SYSCTL_HANDLER_ARGS); 140static hci_fn_t hci_force_fan; 141static hci_fn_t hci_video_output; 142static hci_fn_t hci_lcd_brightness; 143static hci_fn_t hci_lcd_backlight; 144static hci_fn_t hci_cpu_speed; 145static int hci_call(ACPI_HANDLE h, int op, int function, UINT32 *arg); 146static void hci_key_action(struct acpi_toshiba_softc *sc, ACPI_HANDLE h, 147 UINT32 key); 148static void acpi_toshiba_notify(ACPI_HANDLE h, UINT32 notify, 149 void *context); 150static int acpi_toshiba_video_probe(device_t dev); 151static int acpi_toshiba_video_attach(device_t dev); 152 153ACPI_SERIAL_DECL(toshiba, "ACPI Toshiba Extras"); 154 155/* Table of sysctl names and HCI functions to call. */ 156static struct { 157 char *name; 158 hci_fn_t *handler; 159} sysctl_table[] = { 160 /* name, handler */ 161 {"force_fan", hci_force_fan}, 162 {"video_output", hci_video_output}, 163 {"lcd_brightness", hci_lcd_brightness}, 164 {"lcd_backlight", hci_lcd_backlight}, 165 {"cpu_speed", hci_cpu_speed}, 166 {NULL, NULL} 167}; 168 169static device_method_t acpi_toshiba_methods[] = { 170 DEVMETHOD(device_probe, acpi_toshiba_probe), 171 DEVMETHOD(device_attach, acpi_toshiba_attach), 172 DEVMETHOD(device_detach, acpi_toshiba_detach), 173 174 {0, 0} 175}; 176 177static driver_t acpi_toshiba_driver = { 178 "acpi_toshiba", 179 acpi_toshiba_methods, 180 sizeof(struct acpi_toshiba_softc), 181}; 182 183static devclass_t acpi_toshiba_devclass; 184DRIVER_MODULE(acpi_toshiba, acpi, acpi_toshiba_driver, acpi_toshiba_devclass, 185 0, 0); 186MODULE_DEPEND(acpi_toshiba, acpi, 1, 1, 1); 187 188static device_method_t acpi_toshiba_video_methods[] = { 189 DEVMETHOD(device_probe, acpi_toshiba_video_probe), 190 DEVMETHOD(device_attach, acpi_toshiba_video_attach), 191 192 {0, 0} 193}; 194 195static driver_t acpi_toshiba_video_driver = { 196 "acpi_toshiba_video", 197 acpi_toshiba_video_methods, 198 0, 199}; 200 201static devclass_t acpi_toshiba_video_devclass; 202DRIVER_MODULE(acpi_toshiba_video, acpi, acpi_toshiba_video_driver, 203 acpi_toshiba_video_devclass, 0, 0); 204MODULE_DEPEND(acpi_toshiba_video, acpi, 1, 1, 1); 205 206static int enable_fn_keys = 1; 207TUNABLE_INT("hw.acpi.toshiba.enable_fn_keys", &enable_fn_keys); 208 209/* 210 * HID Model 211 * ------------------------------------- 212 * TOS6200 Libretto L Series 213 * Dynabook Satellite 2455 214 * Dynabook SS 3500 215 * TOS6207 Dynabook SS2110 Series 216 */ 217static int 218acpi_toshiba_probe(device_t dev) 219{ 220 static char *tosh_ids[] = { "TOS6200", "TOS6207", NULL }; 221 222 if (acpi_disabled("toshiba") || 223 ACPI_ID_PROBE(device_get_parent(dev), dev, tosh_ids) == NULL || 224 device_get_unit(dev) != 0) 225 return (ENXIO); 226 227 device_set_desc(dev, "Toshiba HCI Extras"); 228 return (0); 229} 230 231static int 232acpi_toshiba_attach(device_t dev) 233{ 234 struct acpi_toshiba_softc *sc; 235 struct acpi_softc *acpi_sc; 236 ACPI_STATUS status; 237 int i; 238 239 sc = device_get_softc(dev); 240 sc->dev = dev; 241 sc->handle = acpi_get_handle(dev); 242 243 acpi_sc = acpi_device_get_parent_softc(dev); 244 sysctl_ctx_init(&sc->sysctl_ctx); 245 sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx, 246 SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO, 247 "toshiba", CTLFLAG_RD, 0, ""); 248 249 for (i = 0; sysctl_table[i].name != NULL; i++) { 250 SYSCTL_ADD_PROC(&sc->sysctl_ctx, 251 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 252 sysctl_table[i].name, 253 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY, 254 sc, i, acpi_toshiba_sysctl, "I", ""); 255 } 256 257 if (enable_fn_keys != 0) { 258 status = AcpiEvaluateObject(sc->handle, METHOD_HCI_ENABLE, 259 NULL, NULL); 260 if (ACPI_FAILURE(status)) { 261 device_printf(dev, "enable FN keys failed\n"); 262 sysctl_ctx_free(&sc->sysctl_ctx); 263 return (ENXIO); 264 } 265 AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, 266 acpi_toshiba_notify, sc); 267 } 268 269 return (0); 270} 271 272static int 273acpi_toshiba_detach(device_t dev) 274{ 275 struct acpi_toshiba_softc *sc; 276 277 sc = device_get_softc(dev); 278 if (enable_fn_keys != 0) { 279 AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, 280 acpi_toshiba_notify); 281 } 282 sysctl_ctx_free(&sc->sysctl_ctx); 283 284 return (0); 285} 286 287static int 288acpi_toshiba_sysctl(SYSCTL_HANDLER_ARGS) 289{ 290 struct acpi_toshiba_softc *sc; 291 UINT32 arg; 292 int function, error = 0; 293 hci_fn_t *handler; 294 295 sc = (struct acpi_toshiba_softc *)oidp->oid_arg1; 296 function = oidp->oid_arg2; 297 handler = sysctl_table[function].handler; 298 299 /* Get the current value from the appropriate function. */ 300 ACPI_SERIAL_BEGIN(toshiba); 301 error = handler(sc->handle, HCI_GET, &arg); 302 if (error != 0) 303 goto out; 304 305 /* Send the current value to the user and return if no new value. */ 306 error = sysctl_handle_int(oidp, &arg, 0, req); 307 if (error != 0 || req->newptr == NULL) 308 goto out; 309 310 /* Set the new value via the appropriate function. */ 311 error = handler(sc->handle, HCI_SET, &arg); 312 313out: 314 ACPI_SERIAL_END(toshiba); 315 return (error); 316} 317 318static int 319hci_force_fan(ACPI_HANDLE h, int op, UINT32 *state) 320{ 321 int ret; 322 323 ACPI_SERIAL_ASSERT(toshiba); 324 if (op == HCI_SET) { 325 if (*state < 0 || *state > 1) 326 return (EINVAL); 327 *state <<= HCI_FAN_SHIFT; 328 } 329 ret = hci_call(h, op, HCI_REG_FAN, state); 330 if (ret == 0 && op == HCI_GET) 331 *state >>= HCI_FAN_SHIFT; 332 return (ret); 333} 334 335static int 336hci_video_output(ACPI_HANDLE h, int op, UINT32 *video_output) 337{ 338 int ret; 339 ACPI_STATUS status; 340 341 ACPI_SERIAL_ASSERT(toshiba); 342 if (op == HCI_SET) { 343 if (*video_output < 1 || *video_output > 7) 344 return (EINVAL); 345 if (h == NULL) 346 return (ENXIO); 347 *video_output |= HCI_VIDEO_OUTPUT_FLAG; 348 status = acpi_SetInteger(h, METHOD_VIDEO, *video_output); 349 if (ACPI_SUCCESS(status)) 350 ret = 0; 351 else 352 ret = ENXIO; 353 } else { 354 ret = hci_call(h, op, HCI_REG_VIDEO_OUTPUT, video_output); 355 if (ret == 0) 356 *video_output &= 0xff; 357 } 358 359 return (ret); 360} 361 362static int 363hci_lcd_brightness(ACPI_HANDLE h, int op, UINT32 *brightness) 364{ 365 int ret; 366 367 ACPI_SERIAL_ASSERT(toshiba); 368 if (op == HCI_SET) { 369 if (*brightness < 0 || *brightness > HCI_LCD_BRIGHTNESS_MAX) 370 return (EINVAL); 371 *brightness <<= HCI_LCD_BRIGHTNESS_SHIFT; 372 } 373 ret = hci_call(h, op, HCI_REG_LCD_BRIGHTNESS, brightness); 374 if (ret == 0 && op == HCI_GET) 375 *brightness >>= HCI_LCD_BRIGHTNESS_SHIFT; 376 return (ret); 377} 378 379static int 380hci_lcd_backlight(ACPI_HANDLE h, int op, UINT32 *backlight) 381{ 382 383 ACPI_SERIAL_ASSERT(toshiba); 384 if (op == HCI_SET) { 385 if (*backlight < 0 || *backlight > 1) 386 return (EINVAL); 387 } 388 return (hci_call(h, op, HCI_REG_LCD_BACKLIGHT, backlight)); 389} 390 391static int 392hci_cpu_speed(ACPI_HANDLE h, int op, UINT32 *speed) 393{ 394 int ret; 395 396 ACPI_SERIAL_ASSERT(toshiba); 397 if (op == HCI_SET) { 398 if (*speed < 0 || *speed > HCI_CPU_SPEED_MAX) 399 return (EINVAL); 400 *speed <<= HCI_CPU_SPEED_SHIFT; 401 } 402 ret = hci_call(h, op, HCI_REG_CPU_SPEED, speed); 403 if (ret == 0 && op == HCI_GET) 404 *speed >>= HCI_CPU_SPEED_SHIFT; 405 return (ret); 406} 407 408static int 409hci_call(ACPI_HANDLE h, int op, int function, UINT32 *arg) 410{ 411 ACPI_OBJECT_LIST args; 412 ACPI_BUFFER results; 413 ACPI_OBJECT obj[HCI_WORDS]; 414 ACPI_OBJECT *res; 415 int status, i, ret; 416 417 ACPI_SERIAL_ASSERT(toshiba); 418 status = ENXIO; 419 420 for (i = 0; i < HCI_WORDS; i++) { 421 obj[i].Type = ACPI_TYPE_INTEGER; 422 obj[i].Integer.Value = 0; 423 } 424 obj[HCI_REG_AX].Integer.Value = op; 425 obj[HCI_REG_BX].Integer.Value = function; 426 if (op == HCI_SET) 427 obj[HCI_REG_CX].Integer.Value = *arg; 428 429 args.Count = HCI_WORDS; 430 args.Pointer = obj; 431 results.Pointer = NULL; 432 results.Length = ACPI_ALLOCATE_BUFFER; 433 if (ACPI_FAILURE(AcpiEvaluateObject(h, METHOD_HCI, &args, &results))) 434 goto end; 435 res = (ACPI_OBJECT *)results.Pointer; 436 if (!ACPI_PKG_VALID(res, HCI_WORDS)) { 437 printf("toshiba: invalid package!\n"); 438 return (ENXIO); 439 } 440 441 acpi_PkgInt32(res, HCI_REG_AX, &ret); 442 if (ret == HCI_SUCCESS) { 443 if (op == HCI_GET) 444 acpi_PkgInt32(res, HCI_REG_CX, arg); 445 status = 0; 446 } else if (function == HCI_REG_SYSTEM_EVENT && op == HCI_GET && 447 ret == HCI_NOT_SUPPORTED) { 448 /* 449 * Sometimes system events are disabled without us requesting 450 * it. This workaround attempts to re-enable them. 451 * 452 * XXX This call probably shouldn't be recursive. Queueing 453 * a task via AcpiOsQueueForExecution() might be better. 454 */ 455 i = 1; 456 hci_call(h, HCI_SET, HCI_REG_SYSTEM_EVENT, &i); 457 } 458 459end: 460 if (results.Pointer != NULL) 461 AcpiOsFree(results.Pointer); 462 463 return (status); 464} 465 466/* 467 * Perform a few actions based on the keypress. Users can extend this 468 * functionality by reading the keystrokes we send to devd(8). 469 */ 470static void 471hci_key_action(struct acpi_toshiba_softc *sc, ACPI_HANDLE h, UINT32 key) 472{ 473 UINT32 arg; 474 475 ACPI_SERIAL_ASSERT(toshiba); 476 switch (key) { 477 case FN_F6_RELEASE: 478 /* Decrease LCD brightness. */ 479 hci_lcd_brightness(h, HCI_GET, &arg); 480 if (arg-- == 0) 481 arg = 0; 482 else 483 hci_lcd_brightness(h, HCI_SET, &arg); 484 break; 485 case FN_F7_RELEASE: 486 /* Increase LCD brightness. */ 487 hci_lcd_brightness(h, HCI_GET, &arg); 488 if (arg++ == 7) 489 arg = 7; 490 else 491 hci_lcd_brightness(h, HCI_SET, &arg); 492 break; 493 case FN_F5_RELEASE: 494 /* Cycle through video outputs. */ 495 hci_video_output(h, HCI_GET, &arg); 496 arg = (arg + 1) % 7; 497 hci_video_output(sc->video_handle, HCI_SET, &arg); 498 break; 499 case FN_F8_RELEASE: 500 /* Toggle LCD backlight. */ 501 hci_lcd_backlight(h, HCI_GET, &arg); 502 arg = (arg != 0) ? 0 : 1; 503 hci_lcd_backlight(h, HCI_SET, &arg); 504 break; 505 case FN_ESC_RELEASE: 506 /* Toggle forcing fan on. */ 507 hci_force_fan(h, HCI_GET, &arg); 508 arg = (arg != 0) ? 0 : 1; 509 hci_force_fan(h, HCI_SET, &arg); 510 break; 511 } 512} 513 514static void 515acpi_toshiba_notify(ACPI_HANDLE h, UINT32 notify, void *context) 516{ 517 struct acpi_toshiba_softc *sc; 518 UINT32 key; 519 520 sc = (struct acpi_toshiba_softc *)context; 521 522 if (notify == 0x80) { 523 ACPI_SERIAL_BEGIN(toshiba); 524 while (hci_call(h, HCI_GET, HCI_REG_SYSTEM_EVENT, &key) == 0) { 525 hci_key_action(sc, h, key); 526 acpi_UserNotify("TOSHIBA", h, (uint8_t)key); 527 } 528 ACPI_SERIAL_END(toshiba); 529 } else 530 device_printf(sc->dev, "unknown notify: 0x%x\n", notify); 531} 532 533/* 534 * Toshiba video pseudo-device to provide the DSSX method. 535 * 536 * HID Model 537 * ------------------------------------- 538 * TOS6201 Libretto L Series 539 */ 540static int 541acpi_toshiba_video_probe(device_t dev) 542{ 543 static char *vid_ids[] = { "TOS6201", NULL }; 544 545 if (acpi_disabled("toshiba") || 546 ACPI_ID_PROBE(device_get_parent(dev), dev, vid_ids) == NULL || 547 device_get_unit(dev) != 0) 548 return (ENXIO); 549 550 device_quiet(dev); 551 device_set_desc(dev, "Toshiba Video"); 552 return (0); 553} 554 555static int 556acpi_toshiba_video_attach(device_t dev) 557{ 558 struct acpi_toshiba_softc *sc; 559 560 sc = devclass_get_softc(acpi_toshiba_devclass, 0); 561 if (sc == NULL) 562 return (ENXIO); 563 sc->video_handle = acpi_get_handle(dev); 564 return (0); 565}
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