Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Acer WMI Laptop Extras |
| 3 | * |
| 4 | * Copyright (C) 2007-2008 Carlos Corbacho <carlos@strangeworlds.co.uk> |
| 5 | * |
| 6 | * Based on acer_acpi: |
| 7 | * Copyright (C) 2005-2007 E.M. Smith |
| 8 | * Copyright (C) 2007-2008 Carlos Corbacho <cathectic@gmail.com> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, write to the Free Software |
| 22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 23 | */ |
| 24 | |
| 25 | #define ACER_WMI_VERSION "0.1" |
| 26 | |
| 27 | #include <linux/kernel.h> |
| 28 | #include <linux/module.h> |
| 29 | #include <linux/init.h> |
| 30 | #include <linux/types.h> |
| 31 | #include <linux/dmi.h> |
Carlos Corbacho | f2b585b | 2008-06-21 09:09:27 +0100 | [diff] [blame^] | 32 | #include <linux/fb.h> |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 33 | #include <linux/backlight.h> |
| 34 | #include <linux/leds.h> |
| 35 | #include <linux/platform_device.h> |
| 36 | #include <linux/acpi.h> |
| 37 | #include <linux/i8042.h> |
| 38 | |
| 39 | #include <acpi/acpi_drivers.h> |
| 40 | |
| 41 | MODULE_AUTHOR("Carlos Corbacho"); |
| 42 | MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver"); |
| 43 | MODULE_LICENSE("GPL"); |
| 44 | |
| 45 | #define ACER_LOGPREFIX "acer-wmi: " |
| 46 | #define ACER_ERR KERN_ERR ACER_LOGPREFIX |
| 47 | #define ACER_NOTICE KERN_NOTICE ACER_LOGPREFIX |
| 48 | #define ACER_INFO KERN_INFO ACER_LOGPREFIX |
| 49 | |
| 50 | /* |
| 51 | * The following defines quirks to get some specific functions to work |
| 52 | * which are known to not be supported over ACPI-WMI (such as the mail LED |
| 53 | * on WMID based Acer's) |
| 54 | */ |
| 55 | struct acer_quirks { |
| 56 | const char *vendor; |
| 57 | const char *model; |
| 58 | u16 quirks; |
| 59 | }; |
| 60 | |
| 61 | /* |
| 62 | * Magic Number |
| 63 | * Meaning is unknown - this number is required for writing to ACPI for AMW0 |
| 64 | * (it's also used in acerhk when directly accessing the BIOS) |
| 65 | */ |
| 66 | #define ACER_AMW0_WRITE 0x9610 |
| 67 | |
| 68 | /* |
| 69 | * Bit masks for the AMW0 interface |
| 70 | */ |
| 71 | #define ACER_AMW0_WIRELESS_MASK 0x35 |
| 72 | #define ACER_AMW0_BLUETOOTH_MASK 0x34 |
| 73 | #define ACER_AMW0_MAILLED_MASK 0x31 |
| 74 | |
| 75 | /* |
| 76 | * Method IDs for WMID interface |
| 77 | */ |
| 78 | #define ACER_WMID_GET_WIRELESS_METHODID 1 |
| 79 | #define ACER_WMID_GET_BLUETOOTH_METHODID 2 |
| 80 | #define ACER_WMID_GET_BRIGHTNESS_METHODID 3 |
| 81 | #define ACER_WMID_SET_WIRELESS_METHODID 4 |
| 82 | #define ACER_WMID_SET_BLUETOOTH_METHODID 5 |
| 83 | #define ACER_WMID_SET_BRIGHTNESS_METHODID 6 |
| 84 | #define ACER_WMID_GET_THREEG_METHODID 10 |
| 85 | #define ACER_WMID_SET_THREEG_METHODID 11 |
| 86 | |
| 87 | /* |
| 88 | * Acer ACPI method GUIDs |
| 89 | */ |
| 90 | #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB" |
| 91 | #define WMID_GUID1 "6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3" |
| 92 | #define WMID_GUID2 "95764E09-FB56-4e83-B31A-37761F60994A" |
| 93 | |
| 94 | MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB"); |
| 95 | MODULE_ALIAS("wmi:6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3"); |
| 96 | |
| 97 | /* Temporary workaround until the WMI sysfs interface goes in */ |
| 98 | MODULE_ALIAS("dmi:*:*Acer*:*:"); |
| 99 | |
| 100 | /* |
| 101 | * Interface capability flags |
| 102 | */ |
| 103 | #define ACER_CAP_MAILLED (1<<0) |
| 104 | #define ACER_CAP_WIRELESS (1<<1) |
| 105 | #define ACER_CAP_BLUETOOTH (1<<2) |
| 106 | #define ACER_CAP_BRIGHTNESS (1<<3) |
| 107 | #define ACER_CAP_THREEG (1<<4) |
| 108 | #define ACER_CAP_ANY (0xFFFFFFFF) |
| 109 | |
| 110 | /* |
| 111 | * Interface type flags |
| 112 | */ |
| 113 | enum interface_flags { |
| 114 | ACER_AMW0, |
| 115 | ACER_AMW0_V2, |
| 116 | ACER_WMID, |
| 117 | }; |
| 118 | |
| 119 | #define ACER_DEFAULT_WIRELESS 0 |
| 120 | #define ACER_DEFAULT_BLUETOOTH 0 |
| 121 | #define ACER_DEFAULT_MAILLED 0 |
| 122 | #define ACER_DEFAULT_THREEG 0 |
| 123 | |
| 124 | static int max_brightness = 0xF; |
| 125 | |
| 126 | static int wireless = -1; |
| 127 | static int bluetooth = -1; |
| 128 | static int mailled = -1; |
| 129 | static int brightness = -1; |
| 130 | static int threeg = -1; |
| 131 | static int force_series; |
| 132 | |
| 133 | module_param(mailled, int, 0444); |
| 134 | module_param(wireless, int, 0444); |
| 135 | module_param(bluetooth, int, 0444); |
| 136 | module_param(brightness, int, 0444); |
| 137 | module_param(threeg, int, 0444); |
| 138 | module_param(force_series, int, 0444); |
| 139 | MODULE_PARM_DESC(wireless, "Set initial state of Wireless hardware"); |
| 140 | MODULE_PARM_DESC(bluetooth, "Set initial state of Bluetooth hardware"); |
| 141 | MODULE_PARM_DESC(mailled, "Set initial state of Mail LED"); |
| 142 | MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness"); |
| 143 | MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware"); |
| 144 | MODULE_PARM_DESC(force_series, "Force a different laptop series"); |
| 145 | |
| 146 | struct acer_data { |
| 147 | int mailled; |
| 148 | int wireless; |
| 149 | int bluetooth; |
| 150 | int threeg; |
| 151 | int brightness; |
| 152 | }; |
| 153 | |
| 154 | /* Each low-level interface must define at least some of the following */ |
| 155 | struct wmi_interface { |
| 156 | /* The WMI device type */ |
| 157 | u32 type; |
| 158 | |
| 159 | /* The capabilities this interface provides */ |
| 160 | u32 capability; |
| 161 | |
| 162 | /* Private data for the current interface */ |
| 163 | struct acer_data data; |
| 164 | }; |
| 165 | |
| 166 | /* The static interface pointer, points to the currently detected interface */ |
| 167 | static struct wmi_interface *interface; |
| 168 | |
| 169 | /* |
| 170 | * Embedded Controller quirks |
| 171 | * Some laptops require us to directly access the EC to either enable or query |
| 172 | * features that are not available through WMI. |
| 173 | */ |
| 174 | |
| 175 | struct quirk_entry { |
| 176 | u8 wireless; |
| 177 | u8 mailled; |
Carlos Corbacho | 9991d9f | 2008-06-21 09:09:22 +0100 | [diff] [blame] | 178 | s8 brightness; |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 179 | u8 bluetooth; |
| 180 | }; |
| 181 | |
| 182 | static struct quirk_entry *quirks; |
| 183 | |
| 184 | static void set_quirks(void) |
| 185 | { |
| 186 | if (quirks->mailled) |
| 187 | interface->capability |= ACER_CAP_MAILLED; |
| 188 | |
| 189 | if (quirks->brightness) |
| 190 | interface->capability |= ACER_CAP_BRIGHTNESS; |
| 191 | } |
| 192 | |
| 193 | static int dmi_matched(const struct dmi_system_id *dmi) |
| 194 | { |
| 195 | quirks = dmi->driver_data; |
| 196 | return 0; |
| 197 | } |
| 198 | |
| 199 | static struct quirk_entry quirk_unknown = { |
| 200 | }; |
| 201 | |
Carlos Corbacho | 9991d9f | 2008-06-21 09:09:22 +0100 | [diff] [blame] | 202 | static struct quirk_entry quirk_acer_aspire_1520 = { |
| 203 | .brightness = -1, |
| 204 | }; |
| 205 | |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 206 | static struct quirk_entry quirk_acer_travelmate_2490 = { |
| 207 | .mailled = 1, |
| 208 | }; |
| 209 | |
| 210 | /* This AMW0 laptop has no bluetooth */ |
| 211 | static struct quirk_entry quirk_medion_md_98300 = { |
| 212 | .wireless = 1, |
| 213 | }; |
| 214 | |
| 215 | static struct dmi_system_id acer_quirks[] = { |
| 216 | { |
| 217 | .callback = dmi_matched, |
Carlos Corbacho | 9991d9f | 2008-06-21 09:09:22 +0100 | [diff] [blame] | 218 | .ident = "Acer Aspire 1360", |
| 219 | .matches = { |
| 220 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 221 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"), |
| 222 | }, |
| 223 | .driver_data = &quirk_acer_aspire_1520, |
| 224 | }, |
| 225 | { |
| 226 | .callback = dmi_matched, |
| 227 | .ident = "Acer Aspire 1520", |
| 228 | .matches = { |
| 229 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 230 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"), |
| 231 | }, |
| 232 | .driver_data = &quirk_acer_aspire_1520, |
| 233 | }, |
| 234 | { |
| 235 | .callback = dmi_matched, |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 236 | .ident = "Acer Aspire 3100", |
| 237 | .matches = { |
| 238 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 239 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"), |
| 240 | }, |
| 241 | .driver_data = &quirk_acer_travelmate_2490, |
| 242 | }, |
| 243 | { |
| 244 | .callback = dmi_matched, |
Carlos Corbacho | ed9cfe9 | 2008-03-12 20:13:00 +0000 | [diff] [blame] | 245 | .ident = "Acer Aspire 3610", |
| 246 | .matches = { |
| 247 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 248 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"), |
| 249 | }, |
| 250 | .driver_data = &quirk_acer_travelmate_2490, |
| 251 | }, |
| 252 | { |
| 253 | .callback = dmi_matched, |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 254 | .ident = "Acer Aspire 5100", |
| 255 | .matches = { |
| 256 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 257 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"), |
| 258 | }, |
| 259 | .driver_data = &quirk_acer_travelmate_2490, |
| 260 | }, |
| 261 | { |
| 262 | .callback = dmi_matched, |
Carlos Corbacho | ed9cfe9 | 2008-03-12 20:13:00 +0000 | [diff] [blame] | 263 | .ident = "Acer Aspire 5610", |
| 264 | .matches = { |
| 265 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 266 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"), |
| 267 | }, |
| 268 | .driver_data = &quirk_acer_travelmate_2490, |
| 269 | }, |
| 270 | { |
| 271 | .callback = dmi_matched, |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 272 | .ident = "Acer Aspire 5630", |
| 273 | .matches = { |
| 274 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 275 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"), |
| 276 | }, |
| 277 | .driver_data = &quirk_acer_travelmate_2490, |
| 278 | }, |
| 279 | { |
| 280 | .callback = dmi_matched, |
| 281 | .ident = "Acer Aspire 5650", |
| 282 | .matches = { |
| 283 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 284 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"), |
| 285 | }, |
| 286 | .driver_data = &quirk_acer_travelmate_2490, |
| 287 | }, |
| 288 | { |
| 289 | .callback = dmi_matched, |
| 290 | .ident = "Acer Aspire 5680", |
| 291 | .matches = { |
| 292 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 293 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"), |
| 294 | }, |
| 295 | .driver_data = &quirk_acer_travelmate_2490, |
| 296 | }, |
| 297 | { |
| 298 | .callback = dmi_matched, |
| 299 | .ident = "Acer Aspire 9110", |
| 300 | .matches = { |
| 301 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 302 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"), |
| 303 | }, |
| 304 | .driver_data = &quirk_acer_travelmate_2490, |
| 305 | }, |
| 306 | { |
| 307 | .callback = dmi_matched, |
| 308 | .ident = "Acer TravelMate 2490", |
| 309 | .matches = { |
| 310 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 311 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"), |
| 312 | }, |
| 313 | .driver_data = &quirk_acer_travelmate_2490, |
| 314 | }, |
| 315 | { |
| 316 | .callback = dmi_matched, |
Carlos Corbacho | 262ee35 | 2008-02-16 00:02:56 +0000 | [diff] [blame] | 317 | .ident = "Acer TravelMate 4200", |
| 318 | .matches = { |
| 319 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 320 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"), |
| 321 | }, |
| 322 | .driver_data = &quirk_acer_travelmate_2490, |
| 323 | }, |
| 324 | { |
| 325 | .callback = dmi_matched, |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 326 | .ident = "Medion MD 98300", |
| 327 | .matches = { |
| 328 | DMI_MATCH(DMI_SYS_VENDOR, "MEDION"), |
| 329 | DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"), |
| 330 | }, |
| 331 | .driver_data = &quirk_medion_md_98300, |
| 332 | }, |
| 333 | {} |
| 334 | }; |
| 335 | |
| 336 | /* Find which quirks are needed for a particular vendor/ model pair */ |
| 337 | static void find_quirks(void) |
| 338 | { |
| 339 | if (!force_series) { |
| 340 | dmi_check_system(acer_quirks); |
| 341 | } else if (force_series == 2490) { |
| 342 | quirks = &quirk_acer_travelmate_2490; |
| 343 | } |
| 344 | |
| 345 | if (quirks == NULL) |
| 346 | quirks = &quirk_unknown; |
| 347 | |
| 348 | set_quirks(); |
| 349 | } |
| 350 | |
| 351 | /* |
| 352 | * General interface convenience methods |
| 353 | */ |
| 354 | |
| 355 | static bool has_cap(u32 cap) |
| 356 | { |
| 357 | if ((interface->capability & cap) != 0) |
| 358 | return 1; |
| 359 | |
| 360 | return 0; |
| 361 | } |
| 362 | |
| 363 | /* |
| 364 | * AMW0 (V1) interface |
| 365 | */ |
| 366 | struct wmab_args { |
| 367 | u32 eax; |
| 368 | u32 ebx; |
| 369 | u32 ecx; |
| 370 | u32 edx; |
| 371 | }; |
| 372 | |
| 373 | struct wmab_ret { |
| 374 | u32 eax; |
| 375 | u32 ebx; |
| 376 | u32 ecx; |
| 377 | u32 edx; |
| 378 | u32 eex; |
| 379 | }; |
| 380 | |
| 381 | static acpi_status wmab_execute(struct wmab_args *regbuf, |
| 382 | struct acpi_buffer *result) |
| 383 | { |
| 384 | struct acpi_buffer input; |
| 385 | acpi_status status; |
| 386 | input.length = sizeof(struct wmab_args); |
| 387 | input.pointer = (u8 *)regbuf; |
| 388 | |
| 389 | status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result); |
| 390 | |
| 391 | return status; |
| 392 | } |
| 393 | |
| 394 | static acpi_status AMW0_get_u32(u32 *value, u32 cap, |
| 395 | struct wmi_interface *iface) |
| 396 | { |
| 397 | int err; |
| 398 | u8 result; |
| 399 | |
| 400 | switch (cap) { |
| 401 | case ACER_CAP_MAILLED: |
| 402 | switch (quirks->mailled) { |
| 403 | default: |
| 404 | err = ec_read(0xA, &result); |
| 405 | if (err) |
| 406 | return AE_ERROR; |
| 407 | *value = (result >> 7) & 0x1; |
| 408 | return AE_OK; |
| 409 | } |
| 410 | break; |
| 411 | case ACER_CAP_WIRELESS: |
| 412 | switch (quirks->wireless) { |
| 413 | case 1: |
| 414 | err = ec_read(0x7B, &result); |
| 415 | if (err) |
| 416 | return AE_ERROR; |
| 417 | *value = result & 0x1; |
| 418 | return AE_OK; |
| 419 | default: |
| 420 | err = ec_read(0xA, &result); |
| 421 | if (err) |
| 422 | return AE_ERROR; |
| 423 | *value = (result >> 2) & 0x1; |
| 424 | return AE_OK; |
| 425 | } |
| 426 | break; |
| 427 | case ACER_CAP_BLUETOOTH: |
| 428 | switch (quirks->bluetooth) { |
| 429 | default: |
| 430 | err = ec_read(0xA, &result); |
| 431 | if (err) |
| 432 | return AE_ERROR; |
| 433 | *value = (result >> 4) & 0x1; |
| 434 | return AE_OK; |
| 435 | } |
| 436 | break; |
| 437 | case ACER_CAP_BRIGHTNESS: |
| 438 | switch (quirks->brightness) { |
| 439 | default: |
| 440 | err = ec_read(0x83, &result); |
| 441 | if (err) |
| 442 | return AE_ERROR; |
| 443 | *value = result; |
| 444 | return AE_OK; |
| 445 | } |
| 446 | break; |
| 447 | default: |
| 448 | return AE_BAD_ADDRESS; |
| 449 | } |
| 450 | return AE_OK; |
| 451 | } |
| 452 | |
| 453 | static acpi_status AMW0_set_u32(u32 value, u32 cap, struct wmi_interface *iface) |
| 454 | { |
| 455 | struct wmab_args args; |
| 456 | |
| 457 | args.eax = ACER_AMW0_WRITE; |
| 458 | args.ebx = value ? (1<<8) : 0; |
| 459 | args.ecx = args.edx = 0; |
| 460 | |
| 461 | switch (cap) { |
| 462 | case ACER_CAP_MAILLED: |
| 463 | if (value > 1) |
| 464 | return AE_BAD_PARAMETER; |
| 465 | args.ebx |= ACER_AMW0_MAILLED_MASK; |
| 466 | break; |
| 467 | case ACER_CAP_WIRELESS: |
| 468 | if (value > 1) |
| 469 | return AE_BAD_PARAMETER; |
| 470 | args.ebx |= ACER_AMW0_WIRELESS_MASK; |
| 471 | break; |
| 472 | case ACER_CAP_BLUETOOTH: |
| 473 | if (value > 1) |
| 474 | return AE_BAD_PARAMETER; |
| 475 | args.ebx |= ACER_AMW0_BLUETOOTH_MASK; |
| 476 | break; |
| 477 | case ACER_CAP_BRIGHTNESS: |
| 478 | if (value > max_brightness) |
| 479 | return AE_BAD_PARAMETER; |
| 480 | switch (quirks->brightness) { |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 481 | default: |
Carlos Corbacho | 4609d02 | 2008-02-08 23:51:49 +0000 | [diff] [blame] | 482 | return ec_write(0x83, value); |
| 483 | break; |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 484 | } |
| 485 | default: |
| 486 | return AE_BAD_ADDRESS; |
| 487 | } |
| 488 | |
| 489 | /* Actually do the set */ |
| 490 | return wmab_execute(&args, NULL); |
| 491 | } |
| 492 | |
| 493 | static acpi_status AMW0_find_mailled(void) |
| 494 | { |
| 495 | struct wmab_args args; |
| 496 | struct wmab_ret ret; |
| 497 | acpi_status status = AE_OK; |
| 498 | struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 499 | union acpi_object *obj; |
| 500 | |
| 501 | args.eax = 0x86; |
| 502 | args.ebx = args.ecx = args.edx = 0; |
| 503 | |
| 504 | status = wmab_execute(&args, &out); |
| 505 | if (ACPI_FAILURE(status)) |
| 506 | return status; |
| 507 | |
| 508 | obj = (union acpi_object *) out.pointer; |
| 509 | if (obj && obj->type == ACPI_TYPE_BUFFER && |
| 510 | obj->buffer.length == sizeof(struct wmab_ret)) { |
| 511 | ret = *((struct wmab_ret *) obj->buffer.pointer); |
| 512 | } else { |
| 513 | return AE_ERROR; |
| 514 | } |
| 515 | |
| 516 | if (ret.eex & 0x1) |
| 517 | interface->capability |= ACER_CAP_MAILLED; |
| 518 | |
| 519 | kfree(out.pointer); |
| 520 | |
| 521 | return AE_OK; |
| 522 | } |
| 523 | |
| 524 | static acpi_status AMW0_set_capabilities(void) |
| 525 | { |
| 526 | struct wmab_args args; |
| 527 | struct wmab_ret ret; |
| 528 | acpi_status status = AE_OK; |
| 529 | struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 530 | union acpi_object *obj; |
| 531 | |
| 532 | args.eax = ACER_AMW0_WRITE; |
| 533 | args.ecx = args.edx = 0; |
| 534 | |
| 535 | args.ebx = 0xa2 << 8; |
| 536 | args.ebx |= ACER_AMW0_WIRELESS_MASK; |
| 537 | |
| 538 | status = wmab_execute(&args, &out); |
| 539 | if (ACPI_FAILURE(status)) |
| 540 | return status; |
| 541 | |
| 542 | obj = (union acpi_object *) out.pointer; |
| 543 | if (obj && obj->type == ACPI_TYPE_BUFFER && |
| 544 | obj->buffer.length == sizeof(struct wmab_ret)) { |
| 545 | ret = *((struct wmab_ret *) obj->buffer.pointer); |
| 546 | } else { |
| 547 | return AE_ERROR; |
| 548 | } |
| 549 | |
| 550 | if (ret.eax & 0x1) |
| 551 | interface->capability |= ACER_CAP_WIRELESS; |
| 552 | |
| 553 | args.ebx = 2 << 8; |
| 554 | args.ebx |= ACER_AMW0_BLUETOOTH_MASK; |
| 555 | |
| 556 | status = wmab_execute(&args, &out); |
| 557 | if (ACPI_FAILURE(status)) |
| 558 | return status; |
| 559 | |
| 560 | obj = (union acpi_object *) out.pointer; |
| 561 | if (obj && obj->type == ACPI_TYPE_BUFFER |
| 562 | && obj->buffer.length == sizeof(struct wmab_ret)) { |
| 563 | ret = *((struct wmab_ret *) obj->buffer.pointer); |
| 564 | } else { |
| 565 | return AE_ERROR; |
| 566 | } |
| 567 | |
| 568 | if (ret.eax & 0x1) |
| 569 | interface->capability |= ACER_CAP_BLUETOOTH; |
| 570 | |
| 571 | kfree(out.pointer); |
| 572 | |
| 573 | /* |
| 574 | * This appears to be safe to enable, since all Wistron based laptops |
| 575 | * appear to use the same EC register for brightness, even if they |
| 576 | * differ for wireless, etc |
| 577 | */ |
Carlos Corbacho | 9991d9f | 2008-06-21 09:09:22 +0100 | [diff] [blame] | 578 | if (quirks->brightness >= 0) |
| 579 | interface->capability |= ACER_CAP_BRIGHTNESS; |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 580 | |
| 581 | return AE_OK; |
| 582 | } |
| 583 | |
| 584 | static struct wmi_interface AMW0_interface = { |
| 585 | .type = ACER_AMW0, |
| 586 | }; |
| 587 | |
| 588 | static struct wmi_interface AMW0_V2_interface = { |
| 589 | .type = ACER_AMW0_V2, |
| 590 | }; |
| 591 | |
| 592 | /* |
| 593 | * New interface (The WMID interface) |
| 594 | */ |
| 595 | static acpi_status |
| 596 | WMI_execute_u32(u32 method_id, u32 in, u32 *out) |
| 597 | { |
| 598 | struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) }; |
| 599 | struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 600 | union acpi_object *obj; |
| 601 | u32 tmp; |
| 602 | acpi_status status; |
| 603 | |
| 604 | status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result); |
| 605 | |
| 606 | if (ACPI_FAILURE(status)) |
| 607 | return status; |
| 608 | |
| 609 | obj = (union acpi_object *) result.pointer; |
| 610 | if (obj && obj->type == ACPI_TYPE_BUFFER && |
| 611 | obj->buffer.length == sizeof(u32)) { |
| 612 | tmp = *((u32 *) obj->buffer.pointer); |
| 613 | } else { |
| 614 | tmp = 0; |
| 615 | } |
| 616 | |
| 617 | if (out) |
| 618 | *out = tmp; |
| 619 | |
| 620 | kfree(result.pointer); |
| 621 | |
| 622 | return status; |
| 623 | } |
| 624 | |
| 625 | static acpi_status WMID_get_u32(u32 *value, u32 cap, |
| 626 | struct wmi_interface *iface) |
| 627 | { |
| 628 | acpi_status status; |
| 629 | u8 tmp; |
| 630 | u32 result, method_id = 0; |
| 631 | |
| 632 | switch (cap) { |
| 633 | case ACER_CAP_WIRELESS: |
| 634 | method_id = ACER_WMID_GET_WIRELESS_METHODID; |
| 635 | break; |
| 636 | case ACER_CAP_BLUETOOTH: |
| 637 | method_id = ACER_WMID_GET_BLUETOOTH_METHODID; |
| 638 | break; |
| 639 | case ACER_CAP_BRIGHTNESS: |
| 640 | method_id = ACER_WMID_GET_BRIGHTNESS_METHODID; |
| 641 | break; |
| 642 | case ACER_CAP_THREEG: |
| 643 | method_id = ACER_WMID_GET_THREEG_METHODID; |
| 644 | break; |
| 645 | case ACER_CAP_MAILLED: |
| 646 | if (quirks->mailled == 1) { |
| 647 | ec_read(0x9f, &tmp); |
| 648 | *value = tmp & 0x1; |
| 649 | return 0; |
| 650 | } |
| 651 | default: |
| 652 | return AE_BAD_ADDRESS; |
| 653 | } |
| 654 | status = WMI_execute_u32(method_id, 0, &result); |
| 655 | |
| 656 | if (ACPI_SUCCESS(status)) |
| 657 | *value = (u8)result; |
| 658 | |
| 659 | return status; |
| 660 | } |
| 661 | |
| 662 | static acpi_status WMID_set_u32(u32 value, u32 cap, struct wmi_interface *iface) |
| 663 | { |
| 664 | u32 method_id = 0; |
| 665 | char param; |
| 666 | |
| 667 | switch (cap) { |
| 668 | case ACER_CAP_BRIGHTNESS: |
| 669 | if (value > max_brightness) |
| 670 | return AE_BAD_PARAMETER; |
| 671 | method_id = ACER_WMID_SET_BRIGHTNESS_METHODID; |
| 672 | break; |
| 673 | case ACER_CAP_WIRELESS: |
| 674 | if (value > 1) |
| 675 | return AE_BAD_PARAMETER; |
| 676 | method_id = ACER_WMID_SET_WIRELESS_METHODID; |
| 677 | break; |
| 678 | case ACER_CAP_BLUETOOTH: |
| 679 | if (value > 1) |
| 680 | return AE_BAD_PARAMETER; |
| 681 | method_id = ACER_WMID_SET_BLUETOOTH_METHODID; |
| 682 | break; |
| 683 | case ACER_CAP_THREEG: |
| 684 | if (value > 1) |
| 685 | return AE_BAD_PARAMETER; |
| 686 | method_id = ACER_WMID_SET_THREEG_METHODID; |
| 687 | break; |
| 688 | case ACER_CAP_MAILLED: |
| 689 | if (value > 1) |
| 690 | return AE_BAD_PARAMETER; |
| 691 | if (quirks->mailled == 1) { |
| 692 | param = value ? 0x92 : 0x93; |
| 693 | i8042_command(¶m, 0x1059); |
| 694 | return 0; |
| 695 | } |
| 696 | break; |
| 697 | default: |
| 698 | return AE_BAD_ADDRESS; |
| 699 | } |
| 700 | return WMI_execute_u32(method_id, (u32)value, NULL); |
| 701 | } |
| 702 | |
| 703 | static acpi_status WMID_set_capabilities(void) |
| 704 | { |
| 705 | struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL}; |
| 706 | union acpi_object *obj; |
| 707 | acpi_status status; |
| 708 | u32 devices; |
| 709 | |
| 710 | status = wmi_query_block(WMID_GUID2, 1, &out); |
| 711 | if (ACPI_FAILURE(status)) |
| 712 | return status; |
| 713 | |
| 714 | obj = (union acpi_object *) out.pointer; |
| 715 | if (obj && obj->type == ACPI_TYPE_BUFFER && |
| 716 | obj->buffer.length == sizeof(u32)) { |
| 717 | devices = *((u32 *) obj->buffer.pointer); |
| 718 | } else { |
| 719 | return AE_ERROR; |
| 720 | } |
| 721 | |
| 722 | /* Not sure on the meaning of the relevant bits yet to detect these */ |
| 723 | interface->capability |= ACER_CAP_WIRELESS; |
| 724 | interface->capability |= ACER_CAP_THREEG; |
| 725 | |
| 726 | /* WMID always provides brightness methods */ |
| 727 | interface->capability |= ACER_CAP_BRIGHTNESS; |
| 728 | |
| 729 | if (devices & 0x10) |
| 730 | interface->capability |= ACER_CAP_BLUETOOTH; |
| 731 | |
| 732 | if (!(devices & 0x20)) |
| 733 | max_brightness = 0x9; |
| 734 | |
| 735 | return status; |
| 736 | } |
| 737 | |
| 738 | static struct wmi_interface wmid_interface = { |
| 739 | .type = ACER_WMID, |
| 740 | }; |
| 741 | |
| 742 | /* |
| 743 | * Generic Device (interface-independent) |
| 744 | */ |
| 745 | |
| 746 | static acpi_status get_u32(u32 *value, u32 cap) |
| 747 | { |
| 748 | acpi_status status = AE_BAD_ADDRESS; |
| 749 | |
| 750 | switch (interface->type) { |
| 751 | case ACER_AMW0: |
| 752 | status = AMW0_get_u32(value, cap, interface); |
| 753 | break; |
| 754 | case ACER_AMW0_V2: |
| 755 | if (cap == ACER_CAP_MAILLED) { |
| 756 | status = AMW0_get_u32(value, cap, interface); |
| 757 | break; |
| 758 | } |
| 759 | case ACER_WMID: |
| 760 | status = WMID_get_u32(value, cap, interface); |
| 761 | break; |
| 762 | } |
| 763 | |
| 764 | return status; |
| 765 | } |
| 766 | |
| 767 | static acpi_status set_u32(u32 value, u32 cap) |
| 768 | { |
| 769 | if (interface->capability & cap) { |
| 770 | switch (interface->type) { |
| 771 | case ACER_AMW0: |
| 772 | return AMW0_set_u32(value, cap, interface); |
| 773 | case ACER_AMW0_V2: |
| 774 | case ACER_WMID: |
| 775 | return WMID_set_u32(value, cap, interface); |
| 776 | default: |
| 777 | return AE_BAD_PARAMETER; |
| 778 | } |
| 779 | } |
| 780 | return AE_BAD_PARAMETER; |
| 781 | } |
| 782 | |
| 783 | static void __init acer_commandline_init(void) |
| 784 | { |
| 785 | /* |
| 786 | * These will all fail silently if the value given is invalid, or the |
| 787 | * capability isn't available on the given interface |
| 788 | */ |
| 789 | set_u32(mailled, ACER_CAP_MAILLED); |
| 790 | set_u32(wireless, ACER_CAP_WIRELESS); |
| 791 | set_u32(bluetooth, ACER_CAP_BLUETOOTH); |
| 792 | set_u32(threeg, ACER_CAP_THREEG); |
| 793 | set_u32(brightness, ACER_CAP_BRIGHTNESS); |
| 794 | } |
| 795 | |
| 796 | /* |
| 797 | * LED device (Mail LED only, no other LEDs known yet) |
| 798 | */ |
| 799 | static void mail_led_set(struct led_classdev *led_cdev, |
| 800 | enum led_brightness value) |
| 801 | { |
| 802 | set_u32(value, ACER_CAP_MAILLED); |
| 803 | } |
| 804 | |
| 805 | static struct led_classdev mail_led = { |
Carlos Corbacho | 343c004 | 2008-02-24 13:34:18 +0000 | [diff] [blame] | 806 | .name = "acer-wmi::mail", |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 807 | .brightness_set = mail_led_set, |
| 808 | }; |
| 809 | |
Sam Ravnborg | 7560e38 | 2008-02-17 13:22:54 +0100 | [diff] [blame] | 810 | static int __devinit acer_led_init(struct device *dev) |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 811 | { |
| 812 | return led_classdev_register(dev, &mail_led); |
| 813 | } |
| 814 | |
| 815 | static void acer_led_exit(void) |
| 816 | { |
| 817 | led_classdev_unregister(&mail_led); |
| 818 | } |
| 819 | |
| 820 | /* |
| 821 | * Backlight device |
| 822 | */ |
| 823 | static struct backlight_device *acer_backlight_device; |
| 824 | |
| 825 | static int read_brightness(struct backlight_device *bd) |
| 826 | { |
| 827 | u32 value; |
| 828 | get_u32(&value, ACER_CAP_BRIGHTNESS); |
| 829 | return value; |
| 830 | } |
| 831 | |
| 832 | static int update_bl_status(struct backlight_device *bd) |
| 833 | { |
Carlos Corbacho | f2b585b | 2008-06-21 09:09:27 +0100 | [diff] [blame^] | 834 | int intensity = bd->props.brightness; |
| 835 | |
| 836 | if (bd->props.power != FB_BLANK_UNBLANK) |
| 837 | intensity = 0; |
| 838 | if (bd->props.fb_blank != FB_BLANK_UNBLANK) |
| 839 | intensity = 0; |
| 840 | |
| 841 | set_u32(intensity, ACER_CAP_BRIGHTNESS); |
| 842 | |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 843 | return 0; |
| 844 | } |
| 845 | |
| 846 | static struct backlight_ops acer_bl_ops = { |
| 847 | .get_brightness = read_brightness, |
| 848 | .update_status = update_bl_status, |
| 849 | }; |
| 850 | |
Sam Ravnborg | 7560e38 | 2008-02-17 13:22:54 +0100 | [diff] [blame] | 851 | static int __devinit acer_backlight_init(struct device *dev) |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 852 | { |
| 853 | struct backlight_device *bd; |
| 854 | |
| 855 | bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops); |
| 856 | if (IS_ERR(bd)) { |
| 857 | printk(ACER_ERR "Could not register Acer backlight device\n"); |
| 858 | acer_backlight_device = NULL; |
| 859 | return PTR_ERR(bd); |
| 860 | } |
| 861 | |
| 862 | acer_backlight_device = bd; |
| 863 | |
Carlos Corbacho | f2b585b | 2008-06-21 09:09:27 +0100 | [diff] [blame^] | 864 | bd->props.power = FB_BLANK_UNBLANK; |
| 865 | bd->props.brightness = max_brightness; |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 866 | bd->props.max_brightness = max_brightness; |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 867 | backlight_update_status(bd); |
| 868 | return 0; |
| 869 | } |
| 870 | |
Sam Ravnborg | 7560e38 | 2008-02-17 13:22:54 +0100 | [diff] [blame] | 871 | static void acer_backlight_exit(void) |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 872 | { |
| 873 | backlight_device_unregister(acer_backlight_device); |
| 874 | } |
| 875 | |
| 876 | /* |
| 877 | * Read/ write bool sysfs macro |
| 878 | */ |
| 879 | #define show_set_bool(value, cap) \ |
| 880 | static ssize_t \ |
| 881 | show_bool_##value(struct device *dev, struct device_attribute *attr, \ |
| 882 | char *buf) \ |
| 883 | { \ |
| 884 | u32 result; \ |
| 885 | acpi_status status = get_u32(&result, cap); \ |
| 886 | if (ACPI_SUCCESS(status)) \ |
| 887 | return sprintf(buf, "%u\n", result); \ |
| 888 | return sprintf(buf, "Read error\n"); \ |
| 889 | } \ |
| 890 | \ |
| 891 | static ssize_t \ |
| 892 | set_bool_##value(struct device *dev, struct device_attribute *attr, \ |
| 893 | const char *buf, size_t count) \ |
| 894 | { \ |
| 895 | u32 tmp = simple_strtoul(buf, NULL, 10); \ |
| 896 | acpi_status status = set_u32(tmp, cap); \ |
| 897 | if (ACPI_FAILURE(status)) \ |
| 898 | return -EINVAL; \ |
| 899 | return count; \ |
| 900 | } \ |
| 901 | static DEVICE_ATTR(value, S_IWUGO | S_IRUGO | S_IWUSR, \ |
| 902 | show_bool_##value, set_bool_##value); |
| 903 | |
| 904 | show_set_bool(wireless, ACER_CAP_WIRELESS); |
| 905 | show_set_bool(bluetooth, ACER_CAP_BLUETOOTH); |
| 906 | show_set_bool(threeg, ACER_CAP_THREEG); |
| 907 | |
| 908 | /* |
| 909 | * Read interface sysfs macro |
| 910 | */ |
| 911 | static ssize_t show_interface(struct device *dev, struct device_attribute *attr, |
| 912 | char *buf) |
| 913 | { |
| 914 | switch (interface->type) { |
| 915 | case ACER_AMW0: |
| 916 | return sprintf(buf, "AMW0\n"); |
| 917 | case ACER_AMW0_V2: |
| 918 | return sprintf(buf, "AMW0 v2\n"); |
| 919 | case ACER_WMID: |
| 920 | return sprintf(buf, "WMID\n"); |
| 921 | default: |
| 922 | return sprintf(buf, "Error!\n"); |
| 923 | } |
| 924 | } |
| 925 | |
| 926 | static DEVICE_ATTR(interface, S_IWUGO | S_IRUGO | S_IWUSR, |
| 927 | show_interface, NULL); |
| 928 | |
| 929 | /* |
| 930 | * Platform device |
| 931 | */ |
| 932 | static int __devinit acer_platform_probe(struct platform_device *device) |
| 933 | { |
| 934 | int err; |
| 935 | |
| 936 | if (has_cap(ACER_CAP_MAILLED)) { |
| 937 | err = acer_led_init(&device->dev); |
| 938 | if (err) |
| 939 | goto error_mailled; |
| 940 | } |
| 941 | |
| 942 | if (has_cap(ACER_CAP_BRIGHTNESS)) { |
| 943 | err = acer_backlight_init(&device->dev); |
| 944 | if (err) |
| 945 | goto error_brightness; |
| 946 | } |
| 947 | |
| 948 | return 0; |
| 949 | |
| 950 | error_brightness: |
| 951 | acer_led_exit(); |
| 952 | error_mailled: |
| 953 | return err; |
| 954 | } |
| 955 | |
| 956 | static int acer_platform_remove(struct platform_device *device) |
| 957 | { |
| 958 | if (has_cap(ACER_CAP_MAILLED)) |
| 959 | acer_led_exit(); |
| 960 | if (has_cap(ACER_CAP_BRIGHTNESS)) |
| 961 | acer_backlight_exit(); |
| 962 | return 0; |
| 963 | } |
| 964 | |
| 965 | static int acer_platform_suspend(struct platform_device *dev, |
| 966 | pm_message_t state) |
| 967 | { |
| 968 | u32 value; |
| 969 | struct acer_data *data = &interface->data; |
| 970 | |
| 971 | if (!data) |
| 972 | return -ENOMEM; |
| 973 | |
| 974 | if (has_cap(ACER_CAP_WIRELESS)) { |
| 975 | get_u32(&value, ACER_CAP_WIRELESS); |
| 976 | data->wireless = value; |
| 977 | } |
| 978 | |
| 979 | if (has_cap(ACER_CAP_BLUETOOTH)) { |
| 980 | get_u32(&value, ACER_CAP_BLUETOOTH); |
| 981 | data->bluetooth = value; |
| 982 | } |
| 983 | |
| 984 | if (has_cap(ACER_CAP_MAILLED)) { |
| 985 | get_u32(&value, ACER_CAP_MAILLED); |
| 986 | data->mailled = value; |
| 987 | } |
| 988 | |
| 989 | if (has_cap(ACER_CAP_BRIGHTNESS)) { |
| 990 | get_u32(&value, ACER_CAP_BRIGHTNESS); |
| 991 | data->brightness = value; |
| 992 | } |
| 993 | |
| 994 | return 0; |
| 995 | } |
| 996 | |
| 997 | static int acer_platform_resume(struct platform_device *device) |
| 998 | { |
| 999 | struct acer_data *data = &interface->data; |
| 1000 | |
| 1001 | if (!data) |
| 1002 | return -ENOMEM; |
| 1003 | |
| 1004 | if (has_cap(ACER_CAP_WIRELESS)) |
| 1005 | set_u32(data->wireless, ACER_CAP_WIRELESS); |
| 1006 | |
| 1007 | if (has_cap(ACER_CAP_BLUETOOTH)) |
| 1008 | set_u32(data->bluetooth, ACER_CAP_BLUETOOTH); |
| 1009 | |
| 1010 | if (has_cap(ACER_CAP_THREEG)) |
| 1011 | set_u32(data->threeg, ACER_CAP_THREEG); |
| 1012 | |
| 1013 | if (has_cap(ACER_CAP_MAILLED)) |
| 1014 | set_u32(data->mailled, ACER_CAP_MAILLED); |
| 1015 | |
| 1016 | if (has_cap(ACER_CAP_BRIGHTNESS)) |
| 1017 | set_u32(data->brightness, ACER_CAP_BRIGHTNESS); |
| 1018 | |
| 1019 | return 0; |
| 1020 | } |
| 1021 | |
| 1022 | static struct platform_driver acer_platform_driver = { |
| 1023 | .driver = { |
| 1024 | .name = "acer-wmi", |
| 1025 | .owner = THIS_MODULE, |
| 1026 | }, |
| 1027 | .probe = acer_platform_probe, |
| 1028 | .remove = acer_platform_remove, |
| 1029 | .suspend = acer_platform_suspend, |
| 1030 | .resume = acer_platform_resume, |
| 1031 | }; |
| 1032 | |
| 1033 | static struct platform_device *acer_platform_device; |
| 1034 | |
| 1035 | static int remove_sysfs(struct platform_device *device) |
| 1036 | { |
| 1037 | if (has_cap(ACER_CAP_WIRELESS)) |
| 1038 | device_remove_file(&device->dev, &dev_attr_wireless); |
| 1039 | |
| 1040 | if (has_cap(ACER_CAP_BLUETOOTH)) |
| 1041 | device_remove_file(&device->dev, &dev_attr_bluetooth); |
| 1042 | |
| 1043 | if (has_cap(ACER_CAP_THREEG)) |
| 1044 | device_remove_file(&device->dev, &dev_attr_threeg); |
| 1045 | |
| 1046 | device_remove_file(&device->dev, &dev_attr_interface); |
| 1047 | |
| 1048 | return 0; |
| 1049 | } |
| 1050 | |
| 1051 | static int create_sysfs(void) |
| 1052 | { |
| 1053 | int retval = -ENOMEM; |
| 1054 | |
| 1055 | if (has_cap(ACER_CAP_WIRELESS)) { |
| 1056 | retval = device_create_file(&acer_platform_device->dev, |
| 1057 | &dev_attr_wireless); |
| 1058 | if (retval) |
| 1059 | goto error_sysfs; |
| 1060 | } |
| 1061 | |
| 1062 | if (has_cap(ACER_CAP_BLUETOOTH)) { |
| 1063 | retval = device_create_file(&acer_platform_device->dev, |
| 1064 | &dev_attr_bluetooth); |
| 1065 | if (retval) |
| 1066 | goto error_sysfs; |
| 1067 | } |
| 1068 | |
| 1069 | if (has_cap(ACER_CAP_THREEG)) { |
| 1070 | retval = device_create_file(&acer_platform_device->dev, |
| 1071 | &dev_attr_threeg); |
| 1072 | if (retval) |
| 1073 | goto error_sysfs; |
| 1074 | } |
| 1075 | |
| 1076 | retval = device_create_file(&acer_platform_device->dev, |
| 1077 | &dev_attr_interface); |
| 1078 | if (retval) |
| 1079 | goto error_sysfs; |
| 1080 | |
| 1081 | return 0; |
| 1082 | |
| 1083 | error_sysfs: |
| 1084 | remove_sysfs(acer_platform_device); |
| 1085 | return retval; |
| 1086 | } |
| 1087 | |
| 1088 | static int __init acer_wmi_init(void) |
| 1089 | { |
| 1090 | int err; |
| 1091 | |
| 1092 | printk(ACER_INFO "Acer Laptop ACPI-WMI Extras version %s\n", |
| 1093 | ACER_WMI_VERSION); |
| 1094 | |
Carlos Corbacho | 9991d9f | 2008-06-21 09:09:22 +0100 | [diff] [blame] | 1095 | find_quirks(); |
| 1096 | |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1097 | /* |
| 1098 | * Detect which ACPI-WMI interface we're using. |
| 1099 | */ |
| 1100 | if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1)) |
| 1101 | interface = &AMW0_V2_interface; |
| 1102 | |
| 1103 | if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1)) |
| 1104 | interface = &wmid_interface; |
| 1105 | |
| 1106 | if (wmi_has_guid(WMID_GUID2) && interface) { |
| 1107 | if (ACPI_FAILURE(WMID_set_capabilities())) { |
Carlos Corbacho | 8d039bc | 2008-03-12 20:12:50 +0000 | [diff] [blame] | 1108 | printk(ACER_ERR "Unable to detect available WMID " |
| 1109 | "devices\n"); |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1110 | return -ENODEV; |
| 1111 | } |
| 1112 | } else if (!wmi_has_guid(WMID_GUID2) && interface) { |
Carlos Corbacho | 8d039bc | 2008-03-12 20:12:50 +0000 | [diff] [blame] | 1113 | printk(ACER_ERR "No WMID device detection method found\n"); |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1114 | return -ENODEV; |
| 1115 | } |
| 1116 | |
| 1117 | if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) { |
| 1118 | interface = &AMW0_interface; |
| 1119 | |
| 1120 | if (ACPI_FAILURE(AMW0_set_capabilities())) { |
Carlos Corbacho | 8d039bc | 2008-03-12 20:12:50 +0000 | [diff] [blame] | 1121 | printk(ACER_ERR "Unable to detect available AMW0 " |
| 1122 | "devices\n"); |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1123 | return -ENODEV; |
| 1124 | } |
| 1125 | } |
| 1126 | |
Carlos Corbacho | 9b963c4 | 2008-02-24 13:34:29 +0000 | [diff] [blame] | 1127 | if (wmi_has_guid(AMW0_GUID1)) |
| 1128 | AMW0_find_mailled(); |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1129 | |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1130 | if (!interface) { |
Carlos Corbacho | 8d039bc | 2008-03-12 20:12:50 +0000 | [diff] [blame] | 1131 | printk(ACER_ERR "No or unsupported WMI interface, unable to " |
| 1132 | "load\n"); |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1133 | return -ENODEV; |
| 1134 | } |
| 1135 | |
| 1136 | if (platform_driver_register(&acer_platform_driver)) { |
| 1137 | printk(ACER_ERR "Unable to register platform driver.\n"); |
| 1138 | goto error_platform_register; |
| 1139 | } |
| 1140 | acer_platform_device = platform_device_alloc("acer-wmi", -1); |
| 1141 | platform_device_add(acer_platform_device); |
| 1142 | |
| 1143 | err = create_sysfs(); |
| 1144 | if (err) |
| 1145 | return err; |
| 1146 | |
| 1147 | /* Override any initial settings with values from the commandline */ |
| 1148 | acer_commandline_init(); |
| 1149 | |
| 1150 | return 0; |
| 1151 | |
| 1152 | error_platform_register: |
| 1153 | return -ENODEV; |
| 1154 | } |
| 1155 | |
| 1156 | static void __exit acer_wmi_exit(void) |
| 1157 | { |
| 1158 | remove_sysfs(acer_platform_device); |
| 1159 | platform_device_del(acer_platform_device); |
| 1160 | platform_driver_unregister(&acer_platform_driver); |
| 1161 | |
| 1162 | printk(ACER_INFO "Acer Laptop WMI Extras unloaded\n"); |
| 1163 | return; |
| 1164 | } |
| 1165 | |
| 1166 | module_init(acer_wmi_init); |
| 1167 | module_exit(acer_wmi_exit); |