| 1 | /* $NetBSD: valz_acpi.c,v 1.7 2015/10/05 15:57:50 christos Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2002 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Masanori Kanaoka. |
| 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 | |
| 32 | /* |
| 33 | * Copyright 2001 Bill Sommerfeld. |
| 34 | * All rights reserved. |
| 35 | * |
| 36 | * Redistribution and use in source and binary forms, with or without |
| 37 | * modification, are permitted provided that the following conditions |
| 38 | * are met: |
| 39 | * 1. Redistributions of source code must retain the above copyright |
| 40 | * notice, this list of conditions and the following disclaimer. |
| 41 | * 2. Redistributions in binary form must reproduce the above copyright |
| 42 | * notice, this list of conditions and the following disclaimer in the |
| 43 | * documentation and/or other materials provided with the distribution. |
| 44 | * 3. All advertising materials mentioning features or use of this software |
| 45 | * must display the following acknowledgement: |
| 46 | * This product includes software developed for the NetBSD Project by |
| 47 | * Wasabi Systems, Inc. |
| 48 | * 4. The name of Wasabi Systems, Inc. may not be used to endorse |
| 49 | * or promote products derived from this software without specific prior |
| 50 | * written permission. |
| 51 | * |
| 52 | * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND |
| 53 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 54 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 55 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC |
| 56 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 57 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 58 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 59 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 60 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 61 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 62 | * POSSIBILITY OF SUCH DAMAGE. |
| 63 | */ |
| 64 | |
| 65 | /* |
| 66 | * ACPI VALZ Driver for Toshiba dynabook R63/PS |
| 67 | * This driver is based on vald_acpi.c |
| 68 | */ |
| 69 | |
| 70 | /* |
| 71 | * Obtain information of Toshiba "GHCI" Method from next URL. |
| 72 | * http://www.buzzard.me.uk/toshiba/docs.html |
| 73 | * http://memebeam.org/toys/ToshibaAcpiDriver |
| 74 | */ |
| 75 | |
| 76 | #include <sys/cdefs.h> |
| 77 | __KERNEL_RCSID(0, "$NetBSD: valz_acpi.c,v 1.7 2015/10/05 15:57:50 christos Exp $" ); |
| 78 | |
| 79 | #include <sys/param.h> |
| 80 | #include <sys/systm.h> |
| 81 | #include <sys/device.h> |
| 82 | |
| 83 | #include <dev/acpi/acpica.h> |
| 84 | #include <dev/acpi/acpireg.h> |
| 85 | #include <dev/acpi/acpivar.h> |
| 86 | |
| 87 | #define _COMPONENT ACPI_RESOURCE_COMPONENT |
| 88 | ACPI_MODULE_NAME ("valz_acpi" ) |
| 89 | |
| 90 | #define METHOD_HCI "GHCI" |
| 91 | #define METHOD_HCI_ENABLE "ENAB" |
| 92 | |
| 93 | /* Operations */ |
| 94 | /* Get */ |
| 95 | #define HCI_GET 0xfe00 |
| 96 | #define SCI_CHECK 0xf000 |
| 97 | #define SCI_GET 0xf300 |
| 98 | |
| 99 | /* Set */ |
| 100 | #define HCI_SET 0xff00 |
| 101 | #define SCI_OPEN 0xf100 |
| 102 | #define SCI_CLOSE 0xf200 |
| 103 | #define SCI_SET 0xf400 |
| 104 | |
| 105 | /* Return codes */ |
| 106 | #define HCI_SUCCESS 0x0000 |
| 107 | #define HCI_FAILURE 0x1000 |
| 108 | #define HCI_NOT_SUPPORTED 0x8000 |
| 109 | #define HCI_INPUT_ERROR 0x8300 |
| 110 | #define HCI_FIFO_EMPTY 0x8c00 |
| 111 | |
| 112 | #define SCI_OPENCLOSE_OK 0x0044 |
| 113 | #define SCI_NOT_SUPPORTED 0x8000 |
| 114 | #define SCI_ALREADY_OPEN 0x8100 |
| 115 | #define SCI_NOT_OPEN 0x8200 |
| 116 | #define SCI_NOT_PRESENT 0x8600 |
| 117 | |
| 118 | /* Functions */ |
| 119 | #define HCI_LCD_BACKLIGHT 0x0002 |
| 120 | #define HCI_ACADAPTOR 0x0003 |
| 121 | #define HCI_SYSTEM_EVENT_FIFO 0x0016 |
| 122 | #define HCI_KBD_BACKLIGHT 0x0017 |
| 123 | #define HCI_DISPLAY_DEV 0x001c |
| 124 | #define HCI_HOTKEY_EVENT 0x001e |
| 125 | #define HCI_LCD_BRIGHTNESS 0x002a |
| 126 | #define HCI_CPU_SPEED 0x0032 |
| 127 | |
| 128 | #define SCI_USB_OFF_CHARGE 0x0150 |
| 129 | #define SCI_TOUCHPAD 0x050e |
| 130 | #define SCI_KBD_BACKLIGHT_STS 0x015c |
| 131 | #define SCI_KBD_BACKLIGHT 0x0095 |
| 132 | |
| 133 | #define SCI_KBD_BL_TIME_SHIFT 0x10 |
| 134 | |
| 135 | /* Field definitions */ |
| 136 | #define HCI_LCD_BRIGHTNESS_BITS 3 |
| 137 | #define HCI_LCD_BRIGHTNESS_SFT (16 - HCI_LCD_BRIGHTNESS_BITS) |
| 138 | #define HCI_LCD_BRIGHTNESS_MIN 0 |
| 139 | #define HCI_LCD_BRIGHTNESS_MAX 7 |
| 140 | #define HCI_VIDEO_DEVICE_FLG 0x0100 |
| 141 | #define HCI_CPU_SPEED_BITS 3 |
| 142 | #define HCI_CPU_SPEED_SFT (16 - HCI_CPU_SPEED_BITS) |
| 143 | #define HCI_CPU_SPEED_MAX ((1 << HCI_CPU_SPEED_BITS) - 1) |
| 144 | |
| 145 | /* Key press/release events */ |
| 146 | |
| 147 | /* Key press/release events */ |
| 148 | #define FN_RELEASE_OFFSET 0x80 |
| 149 | # if 0 |
| 150 | /* Not used */ |
| 151 | #define FN_PRESS 0x01ff |
| 152 | #define FN_RELEASE 0x0100 |
| 153 | # endif |
| 154 | #define FN_ESC_PRESS 0x0101 |
| 155 | #define FN_ESC_RELEASE (FN_ESC_PRESS + FN_RELEASE_OFFSET) |
| 156 | #define FN_F1_PRESS 0x013b |
| 157 | #define FN_F1_RELEASE (FN_F1_PRESS + FN_RELEASE_OFFSET) |
| 158 | #define FN_F2_PRESS 0x013c |
| 159 | #define FN_F2_RELEASE (FN_F2_PRESS + FN_RELEASE_OFFSET) |
| 160 | #define FN_F3_PRESS 0x013d |
| 161 | #define FN_F3_RELEASE (FN_F3_PRESS + FN_RELEASE_OFFSET) |
| 162 | #define FN_F4_PRESS 0x013e |
| 163 | #define FN_F4_RELEASE (FN_F4_PRESS + FN_RELEASE_OFFSET) |
| 164 | #define FN_F5_PRESS 0x013f |
| 165 | #define FN_F5_RELEASE (FN_F5_PRESS + FN_RELEASE_OFFSET) |
| 166 | #define FN_F6_PRESS 0x0140 |
| 167 | #define FN_F6_RELEASE (FN_F6_PRESS + FN_RELEASE_OFFSET) |
| 168 | #define FN_F7_PRESS 0x0141 |
| 169 | #define FN_F7_RELEASE (FN_F7_PRESS + FN_RELEASE_OFFSET) |
| 170 | #define FN_F8_PRESS 0x0142 |
| 171 | #define FN_F8_RELEASE (FN_F8_PRESS + FN_RELEASE_OFFSET) |
| 172 | #define FN_F9_PRESS 0x0143 |
| 173 | #define FN_F9_RELEASE (FN_F9_PRESS + FN_RELEASE_OFFSET) |
| 174 | /* Toggle, they are controlled by hardware */ |
| 175 | #define FN_F10_ON 0x1bb0 |
| 176 | #define FN_F10_OFF 0x1bb1 |
| 177 | #define FN_F11_ON 0x1bb2 |
| 178 | #define FN_F11_OFF 0x1bb3 |
| 179 | /* Fn+F12 does not emit keycode */ |
| 180 | /* dynabook R63/PS does not have KANJI keytop print */ |
| 181 | #define FN_KNJ_PRESS 0x0129 |
| 182 | #define FN_KNJ_RELEASE (FN_KNJ_PRESS + FN_RELEASE_OFFSET) |
| 183 | #define FN_1_PRESS 0x0102 |
| 184 | #define FN_1_RELEASE (FN_1_PRESS + FN_RELEASE_OFFSET) |
| 185 | #define FN_2_PRESS 0x0103 |
| 186 | #define FN_2_RELEASE (FN_2_PRESS + FN_RELEASE_OFFSET) |
| 187 | /* Fn+3 and Fn+4 do not emit keybode */ |
| 188 | #define FN_Z_PRESS 0x012c |
| 189 | #define FN_Z_RELEASE (FN_1_PRESS + FN_RELEASE_OFFSET) |
| 190 | #define FN_SPACE_PRESS 0x0139 |
| 191 | #define FN_SPACE_RELEASE (FN_1_PRESS + FN_RELEASE_OFFSET) |
| 192 | #define FN_TAB_PRESS 0x010f |
| 193 | #define FN_TAB_RELEASE (FN_TAB_PRESS + FN_RELEASE_OFFSET) |
| 194 | #define FN_CAPS_PRESS 0x013a |
| 195 | #define FN_CAPS_RELEASE (FN_CAPS_PRESS + FN_RELEASE_OFFSET) |
| 196 | #define FN_BACKSPACE_PRESS 0x010e |
| 197 | #define FN_BACKSPACE_RELEASE (FN_BACKSPACE_PRESS + FN_RELEASE_OFFSET) |
| 198 | #define FN_INS_PRESS 0x0152 |
| 199 | #define FN_INS_RELEASE (FN_INS_PRESS + FN_RELEASE_OFFSET) |
| 200 | #define FN_DEL_PRESS 0x0153 |
| 201 | #define FN_DEL_RELEASE (FN_DEL_PRESS + FN_RELEASE_OFFSET) |
| 202 | #define FN_PRTSC_PRESS 0x0137 |
| 203 | #define FN_PRTSC_RELEASE (FN_PRTSC_PRESS + FN_RELEASE_OFFSET) |
| 204 | |
| 205 | /* HCI register definitions */ |
| 206 | #define HCI_WORDS 6 /* number of registers */ |
| 207 | #define HCI_REG_AX 0 /* Operation -> return value */ |
| 208 | #define HCI_REG_BX 1 /* Function */ |
| 209 | #define HCI_REG_CX 2 /* Argument (in or out) */ |
| 210 | #define HCI_REG_DX 3 /* unused */ |
| 211 | #define HCI_REG_SI 4 /* unused */ |
| 212 | #define HCI_REG_DI 5 /* unused */ |
| 213 | |
| 214 | #define HCI_ON 0x0001 |
| 215 | #define HCI_OFF 0x0000 |
| 216 | #define HCI_ENABLE 0x0001 |
| 217 | #define HCI_DISABLE 0x0000 |
| 218 | |
| 219 | #define HCI_LCD 0x1 |
| 220 | #define HCI_CRT 0x2 |
| 221 | #define HCI_TV 0x4 |
| 222 | |
| 223 | #define SCI_KBD_BL_MODE_MASK 0x1f |
| 224 | #define SCI_KBD_BL_TIMO_SFT 0x10 |
| 225 | #define SCI_KBD_BL_MODE_AUTO 0x2 |
| 226 | #define SCI_KBD_BL_MODE_ON 0x8 |
| 227 | #define SCI_KBD_BL_MODE_OFF 0x10 |
| 228 | |
| 229 | struct valz_acpi_softc { |
| 230 | device_t sc_dev; /* base device glue */ |
| 231 | struct acpi_devnode *sc_node; /* our ACPI devnode */ |
| 232 | }; |
| 233 | |
| 234 | static const char * const valz_acpi_hids[] = { |
| 235 | "TOS6208" , |
| 236 | NULL |
| 237 | }; |
| 238 | |
| 239 | static int valz_acpi_match(device_t, cfdata_t, void *); |
| 240 | static void valz_acpi_attach(device_t, device_t, void *); |
| 241 | |
| 242 | static void valz_acpi_event(void *); |
| 243 | static void valz_acpi_notify_handler(ACPI_HANDLE, uint32_t, void *); |
| 244 | |
| 245 | #define ACPI_NOTIFY_ValzHotkeyPressed 0x80 |
| 246 | #define ACPI_NOTIFY_ValzLidClosed 0x8f |
| 247 | #define ACPI_NOTIFY_ValzKbdBLChanges 0x92 |
| 248 | |
| 249 | /* HCI manipulation */ |
| 250 | static ACPI_STATUS hci_op(struct valz_acpi_softc *, |
| 251 | uint32_t *, uint32_t *); |
| 252 | static ACPI_STATUS valz_acpi_hci_get(struct valz_acpi_softc *, uint32_t, |
| 253 | uint32_t, uint32_t *, uint32_t *); |
| 254 | static ACPI_STATUS valz_acpi_hci_set(struct valz_acpi_softc *, uint32_t, |
| 255 | uint32_t, uint32_t, uint32_t *); |
| 256 | |
| 257 | static ACPI_STATUS sci_open(struct valz_acpi_softc *); |
| 258 | static ACPI_STATUS sci_close(struct valz_acpi_softc *); |
| 259 | |
| 260 | static ACPI_STATUS valz_acpi_touchpad_toggle(struct valz_acpi_softc *); |
| 261 | static ACPI_STATUS valz_acpi_lcd_backlight_toggle( |
| 262 | struct valz_acpi_softc *sc); |
| 263 | |
| 264 | CFATTACH_DECL_NEW(valz_acpi, sizeof(struct valz_acpi_softc), |
| 265 | valz_acpi_match, valz_acpi_attach, NULL, NULL); |
| 266 | |
| 267 | /* |
| 268 | * valz_acpi_match: |
| 269 | * |
| 270 | * Autoconfiguration `match' routine. |
| 271 | */ |
| 272 | static int |
| 273 | valz_acpi_match(device_t parent, cfdata_t match, void *aux) |
| 274 | { |
| 275 | struct acpi_attach_args *aa = aux; |
| 276 | |
| 277 | if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) |
| 278 | return (0); |
| 279 | |
| 280 | return (acpi_match_hid(aa->aa_node->ad_devinfo, valz_acpi_hids)); |
| 281 | } |
| 282 | |
| 283 | /* |
| 284 | * valz_acpi_attach: |
| 285 | * |
| 286 | * Autoconfiguration `attach' routine. |
| 287 | */ |
| 288 | static void |
| 289 | valz_acpi_attach(device_t parent, device_t self, void *aux) |
| 290 | { |
| 291 | struct valz_acpi_softc *sc = device_private(self); |
| 292 | struct acpi_attach_args *aa = aux; |
| 293 | ACPI_STATUS rv; |
| 294 | |
| 295 | aprint_naive(": Toshiba VALZ\n" ); |
| 296 | aprint_normal(": Toshiba VALZ\n" ); |
| 297 | |
| 298 | sc->sc_node = aa->aa_node; |
| 299 | sc->sc_dev = self; |
| 300 | |
| 301 | /* enable valz notify */ |
| 302 | rv = AcpiEvaluateObject(sc->sc_node->ad_handle, METHOD_HCI_ENABLE, |
| 303 | NULL, NULL); |
| 304 | if (ACPI_FAILURE(rv)) { |
| 305 | aprint_error("Cannot enable VALZ.\n" ); |
| 306 | } else { |
| 307 | (void)acpi_register_notify(sc->sc_node, |
| 308 | valz_acpi_notify_handler); |
| 309 | } |
| 310 | } |
| 311 | |
| 312 | /* |
| 313 | * valz_acpi_notify_handler: |
| 314 | * |
| 315 | * Notify handler. |
| 316 | */ |
| 317 | static void |
| 318 | valz_acpi_notify_handler(ACPI_HANDLE handle, uint32_t notify, void *context) |
| 319 | { |
| 320 | struct valz_acpi_softc *sc; |
| 321 | device_t self = context; |
| 322 | |
| 323 | sc = device_private(self); |
| 324 | |
| 325 | switch (notify) { |
| 326 | case ACPI_NOTIFY_ValzHotkeyPressed: |
| 327 | (void)AcpiOsExecute(OSL_NOTIFY_HANDLER, valz_acpi_event, sc); |
| 328 | break; |
| 329 | |
| 330 | case ACPI_NOTIFY_ValzLidClosed: |
| 331 | /* Lid closed */ |
| 332 | break; |
| 333 | |
| 334 | case ACPI_NOTIFY_ValzKbdBLChanges: |
| 335 | /* Keyboard backlight mode changed */ |
| 336 | break; |
| 337 | |
| 338 | default: |
| 339 | aprint_error_dev(sc->sc_dev, |
| 340 | "unknown notify 0x%02X\n" , notify); |
| 341 | break; |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | /* |
| 346 | * valz_acpi_event: |
| 347 | * |
| 348 | * Check hotkey event and do it, if event occur. |
| 349 | */ |
| 350 | static void |
| 351 | valz_acpi_event(void *arg) |
| 352 | { |
| 353 | struct valz_acpi_softc *sc = arg; |
| 354 | ACPI_STATUS rv; |
| 355 | uint32_t value, result; |
| 356 | |
| 357 | for (;;) { |
| 358 | rv = valz_acpi_hci_get(sc, HCI_GET, HCI_SYSTEM_EVENT_FIFO, |
| 359 | &value, &result); |
| 360 | if (ACPI_SUCCESS(rv) && result == 0) { |
| 361 | switch (value) { |
| 362 | case FN_F9_PRESS: |
| 363 | valz_acpi_touchpad_toggle(sc); |
| 364 | break; |
| 365 | case FN_TAB_PRESS: |
| 366 | valz_acpi_lcd_backlight_toggle(sc); |
| 367 | break; |
| 368 | |
| 369 | default: |
| 370 | /* Many unused buttons */ |
| 371 | aprint_debug("Pressed: 0x%x\n" , value); |
| 372 | break; |
| 373 | } |
| 374 | } |
| 375 | if (ACPI_FAILURE(rv) || result == HCI_NOT_SUPPORTED || |
| 376 | result == HCI_FIFO_EMPTY) |
| 377 | break; |
| 378 | } |
| 379 | } |
| 380 | |
| 381 | /* |
| 382 | * HCI/SCI operation |
| 383 | */ |
| 384 | static ACPI_STATUS |
| 385 | hci_op(struct valz_acpi_softc *sc, uint32_t *input, uint32_t *output) |
| 386 | { |
| 387 | ACPI_STATUS rv; |
| 388 | ACPI_OBJECT Arg[HCI_WORDS]; |
| 389 | ACPI_OBJECT_LIST ArgList; |
| 390 | ACPI_OBJECT *param, *PrtElement; |
| 391 | ACPI_BUFFER buf; |
| 392 | int i; |
| 393 | |
| 394 | for (i = 0; i < HCI_WORDS; i++) { |
| 395 | Arg[i].Type = ACPI_TYPE_INTEGER; |
| 396 | Arg[i].Integer.Value = 0; |
| 397 | } |
| 398 | |
| 399 | for (i = 0; i < HCI_WORDS; i++) { |
| 400 | Arg[i].Integer.Value = input[i]; |
| 401 | } |
| 402 | |
| 403 | ArgList.Count = HCI_WORDS; |
| 404 | ArgList.Pointer = Arg; |
| 405 | |
| 406 | buf.Pointer = NULL; |
| 407 | buf.Length = ACPI_ALLOCATE_BUFFER; |
| 408 | |
| 409 | rv = AcpiEvaluateObjectTyped(sc->sc_node->ad_handle, |
| 410 | METHOD_HCI, &ArgList, &buf, ACPI_TYPE_PACKAGE); |
| 411 | if (ACPI_FAILURE(rv)) { |
| 412 | aprint_error_dev(sc->sc_dev, "failed to evaluate GHCI: %s\n" , |
| 413 | AcpiFormatException(rv)); |
| 414 | return rv; |
| 415 | } |
| 416 | |
| 417 | param = (ACPI_OBJECT *)buf.Pointer; |
| 418 | PrtElement = param->Package.Elements; |
| 419 | for (i = 0; i < HCI_WORDS; i++) { |
| 420 | output[i] = PrtElement[i].Type == ACPI_TYPE_INTEGER ? |
| 421 | PrtElement[i].Integer.Value : 0; |
| 422 | } |
| 423 | |
| 424 | ACPI_FREE(buf.Pointer); |
| 425 | |
| 426 | return rv; |
| 427 | } |
| 428 | |
| 429 | /* |
| 430 | * valz_acpi_hci_get: |
| 431 | * |
| 432 | * Get value via "GHCI" Method. |
| 433 | */ |
| 434 | static ACPI_STATUS |
| 435 | valz_acpi_hci_get(struct valz_acpi_softc *sc, uint32_t function, |
| 436 | uint32_t reg, uint32_t *value, uint32_t *result) |
| 437 | { |
| 438 | ACPI_STATUS rv; |
| 439 | |
| 440 | uint32_t input[HCI_WORDS]; |
| 441 | uint32_t output[HCI_WORDS]; |
| 442 | |
| 443 | input[HCI_REG_AX] = function; |
| 444 | input[HCI_REG_BX] = reg; |
| 445 | input[HCI_REG_CX] = 0; |
| 446 | input[HCI_REG_DX] = 0; |
| 447 | input[HCI_REG_SI] = 0; |
| 448 | input[HCI_REG_DI] = 0; |
| 449 | |
| 450 | rv = hci_op(sc, input, output); |
| 451 | |
| 452 | *result = output[HCI_REG_AX]; |
| 453 | *value = output[HCI_REG_CX]; |
| 454 | |
| 455 | return rv; |
| 456 | } |
| 457 | |
| 458 | /* |
| 459 | * valz_acpi_hci_set: |
| 460 | * |
| 461 | * Set value via "GHCI" Method. |
| 462 | */ |
| 463 | static ACPI_STATUS |
| 464 | valz_acpi_hci_set(struct valz_acpi_softc *sc, uint32_t function, |
| 465 | uint32_t reg, uint32_t value, uint32_t *result) |
| 466 | { |
| 467 | ACPI_STATUS rv; |
| 468 | |
| 469 | uint32_t input[HCI_WORDS]; |
| 470 | uint32_t output[HCI_WORDS]; |
| 471 | |
| 472 | input[HCI_REG_AX] = function; |
| 473 | input[HCI_REG_BX] = reg; |
| 474 | input[HCI_REG_CX] = value; |
| 475 | input[HCI_REG_DX] = 0; |
| 476 | input[HCI_REG_SI] = 0; |
| 477 | input[HCI_REG_DI] = 0; |
| 478 | |
| 479 | rv = hci_op(sc, input, output); |
| 480 | |
| 481 | *result = output[HCI_REG_AX]; |
| 482 | |
| 483 | return rv; |
| 484 | } |
| 485 | |
| 486 | /* |
| 487 | * Open SCI |
| 488 | */ |
| 489 | static ACPI_STATUS |
| 490 | sci_open(struct valz_acpi_softc *sc) |
| 491 | { |
| 492 | ACPI_STATUS rv; |
| 493 | uint32_t result; |
| 494 | |
| 495 | rv = valz_acpi_hci_set(sc, SCI_OPEN, 0, 0, &result); |
| 496 | if (ACPI_FAILURE(rv)) { |
| 497 | aprint_error("SCI: ACPI set error\n" ); |
| 498 | } else { |
| 499 | switch (result) { |
| 500 | case SCI_OPENCLOSE_OK: |
| 501 | aprint_debug("Opening SCI\n" ); |
| 502 | break; |
| 503 | case SCI_ALREADY_OPEN: |
| 504 | aprint_error("SCI already open\n" ); |
| 505 | break; |
| 506 | case SCI_NOT_SUPPORTED: |
| 507 | aprint_error("SCI is not supported\n" ); |
| 508 | break; |
| 509 | case SCI_NOT_PRESENT: |
| 510 | aprint_error("SCI is not present\n" ); |
| 511 | break; |
| 512 | default: |
| 513 | aprint_error("SCI: undefined behavior\n" ); |
| 514 | break; |
| 515 | } |
| 516 | } |
| 517 | |
| 518 | return rv; |
| 519 | } |
| 520 | |
| 521 | /* |
| 522 | * Close SCI |
| 523 | */ |
| 524 | static ACPI_STATUS |
| 525 | sci_close(struct valz_acpi_softc *sc) |
| 526 | { |
| 527 | ACPI_STATUS rv; |
| 528 | uint32_t result; |
| 529 | |
| 530 | rv = valz_acpi_hci_set(sc, SCI_CLOSE, 0, 0, &result); |
| 531 | if (ACPI_FAILURE(rv)) { |
| 532 | aprint_error("SCI: ACPI set error\n" ); |
| 533 | } else { |
| 534 | switch (result) { |
| 535 | case SCI_OPENCLOSE_OK: |
| 536 | aprint_debug("Closing SCI\n" ); |
| 537 | break; |
| 538 | case SCI_NOT_OPEN: |
| 539 | aprint_error("SCI is not opened\n" ); |
| 540 | break; |
| 541 | case SCI_NOT_SUPPORTED: |
| 542 | aprint_error("SCI is not supported\n" ); |
| 543 | break; |
| 544 | case SCI_NOT_PRESENT: |
| 545 | aprint_error("SCI is not present\n" ); |
| 546 | break; |
| 547 | default: |
| 548 | aprint_error("SCI: undefined behavior\n" ); |
| 549 | break; |
| 550 | } |
| 551 | } |
| 552 | |
| 553 | return rv; |
| 554 | } |
| 555 | |
| 556 | /* |
| 557 | * Enable/disable touchpad and trackpoint with HCI_ENABLE/HCI_DISABLE |
| 558 | */ |
| 559 | static ACPI_STATUS |
| 560 | valz_acpi_touchpad_toggle(struct valz_acpi_softc *sc) |
| 561 | { |
| 562 | ACPI_STATUS rv; |
| 563 | uint32_t result, status, value; |
| 564 | |
| 565 | rv = sci_open(sc); |
| 566 | if (ACPI_FAILURE(rv)) |
| 567 | aprint_error_dev(sc->sc_dev, |
| 568 | "Cannot open SCI: %s\n" , |
| 569 | AcpiFormatException(rv)); |
| 570 | |
| 571 | rv = valz_acpi_hci_get(sc, SCI_GET, SCI_TOUCHPAD, &value, &result); |
| 572 | if (ACPI_FAILURE(rv)) |
| 573 | aprint_error_dev(sc->sc_dev, |
| 574 | "Cannot get SCI touchpad status: %s\n" , |
| 575 | AcpiFormatException(rv)); |
| 576 | |
| 577 | switch (value) { |
| 578 | case HCI_ENABLE: |
| 579 | status = HCI_DISABLE; |
| 580 | break; |
| 581 | case HCI_DISABLE: |
| 582 | status = HCI_ENABLE; |
| 583 | break; |
| 584 | default: |
| 585 | status = HCI_ENABLE; |
| 586 | break; |
| 587 | } |
| 588 | |
| 589 | rv = valz_acpi_hci_set(sc, SCI_SET, SCI_TOUCHPAD, status, &result); |
| 590 | if (ACPI_FAILURE(rv)) |
| 591 | aprint_error_dev(sc->sc_dev, |
| 592 | "Cannot set SCI touchpad status: %s\n" , |
| 593 | AcpiFormatException(rv)); |
| 594 | |
| 595 | rv = sci_close(sc); |
| 596 | if (ACPI_FAILURE(rv)) |
| 597 | aprint_error_dev(sc->sc_dev, |
| 598 | "Cannot close SCI: %s\n" , |
| 599 | AcpiFormatException(rv)); |
| 600 | |
| 601 | return rv; |
| 602 | } |
| 603 | |
| 604 | /* |
| 605 | * Enable/disable LCD backlight with HCI_ENABLE/HCI_DISABLE |
| 606 | */ |
| 607 | static ACPI_STATUS |
| 608 | valz_acpi_lcd_backlight_toggle(struct valz_acpi_softc *sc) |
| 609 | { |
| 610 | ACPI_STATUS rv; |
| 611 | uint32_t result, status, value; |
| 612 | |
| 613 | rv = valz_acpi_hci_get(sc, HCI_GET, HCI_LCD_BACKLIGHT, &value, &result); |
| 614 | if (ACPI_FAILURE(rv)) |
| 615 | aprint_error_dev(sc->sc_dev, |
| 616 | "Cannot get HCI LCD backlight status: %s\n" , |
| 617 | AcpiFormatException(rv)); |
| 618 | |
| 619 | switch (value) { |
| 620 | case HCI_ON: |
| 621 | status = HCI_OFF; |
| 622 | break; |
| 623 | case HCI_OFF: |
| 624 | status = HCI_ON; |
| 625 | break; |
| 626 | default: |
| 627 | status = HCI_ON; |
| 628 | break; |
| 629 | } |
| 630 | |
| 631 | rv = valz_acpi_hci_set(sc, HCI_SET, HCI_LCD_BACKLIGHT, status, &result); |
| 632 | if (ACPI_FAILURE(rv)) |
| 633 | aprint_error_dev(sc->sc_dev, |
| 634 | "Cannot set HCI LCD backlight status: %s\n" , |
| 635 | AcpiFormatException(rv)); |
| 636 | |
| 637 | return rv; |
| 638 | } |
| 639 | |