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 | |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 25 | #include <linux/kernel.h> |
| 26 | #include <linux/module.h> |
| 27 | #include <linux/init.h> |
| 28 | #include <linux/types.h> |
| 29 | #include <linux/dmi.h> |
Carlos Corbacho | f2b585b | 2008-06-21 09:09:27 +0100 | [diff] [blame] | 30 | #include <linux/fb.h> |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 31 | #include <linux/backlight.h> |
| 32 | #include <linux/leds.h> |
| 33 | #include <linux/platform_device.h> |
| 34 | #include <linux/acpi.h> |
| 35 | #include <linux/i8042.h> |
Carlos Corbacho | 8114352 | 2008-06-21 09:09:53 +0100 | [diff] [blame] | 36 | #include <linux/debugfs.h> |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 37 | |
| 38 | #include <acpi/acpi_drivers.h> |
| 39 | |
| 40 | MODULE_AUTHOR("Carlos Corbacho"); |
| 41 | MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver"); |
| 42 | MODULE_LICENSE("GPL"); |
| 43 | |
| 44 | #define ACER_LOGPREFIX "acer-wmi: " |
| 45 | #define ACER_ERR KERN_ERR ACER_LOGPREFIX |
| 46 | #define ACER_NOTICE KERN_NOTICE ACER_LOGPREFIX |
| 47 | #define ACER_INFO KERN_INFO ACER_LOGPREFIX |
| 48 | |
| 49 | /* |
| 50 | * The following defines quirks to get some specific functions to work |
| 51 | * which are known to not be supported over ACPI-WMI (such as the mail LED |
| 52 | * on WMID based Acer's) |
| 53 | */ |
| 54 | struct acer_quirks { |
| 55 | const char *vendor; |
| 56 | const char *model; |
| 57 | u16 quirks; |
| 58 | }; |
| 59 | |
| 60 | /* |
| 61 | * Magic Number |
| 62 | * Meaning is unknown - this number is required for writing to ACPI for AMW0 |
| 63 | * (it's also used in acerhk when directly accessing the BIOS) |
| 64 | */ |
| 65 | #define ACER_AMW0_WRITE 0x9610 |
| 66 | |
| 67 | /* |
| 68 | * Bit masks for the AMW0 interface |
| 69 | */ |
| 70 | #define ACER_AMW0_WIRELESS_MASK 0x35 |
| 71 | #define ACER_AMW0_BLUETOOTH_MASK 0x34 |
| 72 | #define ACER_AMW0_MAILLED_MASK 0x31 |
| 73 | |
| 74 | /* |
| 75 | * Method IDs for WMID interface |
| 76 | */ |
| 77 | #define ACER_WMID_GET_WIRELESS_METHODID 1 |
| 78 | #define ACER_WMID_GET_BLUETOOTH_METHODID 2 |
| 79 | #define ACER_WMID_GET_BRIGHTNESS_METHODID 3 |
| 80 | #define ACER_WMID_SET_WIRELESS_METHODID 4 |
| 81 | #define ACER_WMID_SET_BLUETOOTH_METHODID 5 |
| 82 | #define ACER_WMID_SET_BRIGHTNESS_METHODID 6 |
| 83 | #define ACER_WMID_GET_THREEG_METHODID 10 |
| 84 | #define ACER_WMID_SET_THREEG_METHODID 11 |
| 85 | |
| 86 | /* |
| 87 | * Acer ACPI method GUIDs |
| 88 | */ |
| 89 | #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB" |
Carlos Corbacho | 5753dd5 | 2008-06-21 09:09:48 +0100 | [diff] [blame] | 90 | #define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C" |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 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 | |
Carlos Corbacho | 8114352 | 2008-06-21 09:09:53 +0100 | [diff] [blame] | 154 | struct acer_debug { |
| 155 | struct dentry *root; |
| 156 | struct dentry *devices; |
| 157 | u32 wmid_devices; |
| 158 | }; |
| 159 | |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 160 | /* Each low-level interface must define at least some of the following */ |
| 161 | struct wmi_interface { |
| 162 | /* The WMI device type */ |
| 163 | u32 type; |
| 164 | |
| 165 | /* The capabilities this interface provides */ |
| 166 | u32 capability; |
| 167 | |
| 168 | /* Private data for the current interface */ |
| 169 | struct acer_data data; |
Carlos Corbacho | 8114352 | 2008-06-21 09:09:53 +0100 | [diff] [blame] | 170 | |
| 171 | /* debugfs entries associated with this interface */ |
| 172 | struct acer_debug debug; |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 173 | }; |
| 174 | |
| 175 | /* The static interface pointer, points to the currently detected interface */ |
| 176 | static struct wmi_interface *interface; |
| 177 | |
| 178 | /* |
| 179 | * Embedded Controller quirks |
| 180 | * Some laptops require us to directly access the EC to either enable or query |
| 181 | * features that are not available through WMI. |
| 182 | */ |
| 183 | |
| 184 | struct quirk_entry { |
| 185 | u8 wireless; |
| 186 | u8 mailled; |
Carlos Corbacho | 9991d9f | 2008-06-21 09:09:22 +0100 | [diff] [blame] | 187 | s8 brightness; |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 188 | u8 bluetooth; |
| 189 | }; |
| 190 | |
| 191 | static struct quirk_entry *quirks; |
| 192 | |
| 193 | static void set_quirks(void) |
| 194 | { |
| 195 | if (quirks->mailled) |
| 196 | interface->capability |= ACER_CAP_MAILLED; |
| 197 | |
| 198 | if (quirks->brightness) |
| 199 | interface->capability |= ACER_CAP_BRIGHTNESS; |
| 200 | } |
| 201 | |
| 202 | static int dmi_matched(const struct dmi_system_id *dmi) |
| 203 | { |
| 204 | quirks = dmi->driver_data; |
| 205 | return 0; |
| 206 | } |
| 207 | |
| 208 | static struct quirk_entry quirk_unknown = { |
| 209 | }; |
| 210 | |
Carlos Corbacho | 9991d9f | 2008-06-21 09:09:22 +0100 | [diff] [blame] | 211 | static struct quirk_entry quirk_acer_aspire_1520 = { |
| 212 | .brightness = -1, |
| 213 | }; |
| 214 | |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 215 | static struct quirk_entry quirk_acer_travelmate_2490 = { |
| 216 | .mailled = 1, |
| 217 | }; |
| 218 | |
| 219 | /* This AMW0 laptop has no bluetooth */ |
| 220 | static struct quirk_entry quirk_medion_md_98300 = { |
| 221 | .wireless = 1, |
| 222 | }; |
| 223 | |
Carlos Corbacho | 6f061ab | 2008-06-21 09:09:38 +0100 | [diff] [blame] | 224 | static struct quirk_entry quirk_fujitsu_amilo_li_1718 = { |
| 225 | .wireless = 2, |
| 226 | }; |
| 227 | |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 228 | static struct dmi_system_id acer_quirks[] = { |
| 229 | { |
| 230 | .callback = dmi_matched, |
Carlos Corbacho | 9991d9f | 2008-06-21 09:09:22 +0100 | [diff] [blame] | 231 | .ident = "Acer Aspire 1360", |
| 232 | .matches = { |
| 233 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 234 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"), |
| 235 | }, |
| 236 | .driver_data = &quirk_acer_aspire_1520, |
| 237 | }, |
| 238 | { |
| 239 | .callback = dmi_matched, |
| 240 | .ident = "Acer Aspire 1520", |
| 241 | .matches = { |
| 242 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 243 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"), |
| 244 | }, |
| 245 | .driver_data = &quirk_acer_aspire_1520, |
| 246 | }, |
| 247 | { |
| 248 | .callback = dmi_matched, |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 249 | .ident = "Acer Aspire 3100", |
| 250 | .matches = { |
| 251 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 252 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"), |
| 253 | }, |
| 254 | .driver_data = &quirk_acer_travelmate_2490, |
| 255 | }, |
| 256 | { |
| 257 | .callback = dmi_matched, |
Carlos Corbacho | ed9cfe9 | 2008-03-12 20:13:00 +0000 | [diff] [blame] | 258 | .ident = "Acer Aspire 3610", |
| 259 | .matches = { |
| 260 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 261 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"), |
| 262 | }, |
| 263 | .driver_data = &quirk_acer_travelmate_2490, |
| 264 | }, |
| 265 | { |
| 266 | .callback = dmi_matched, |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 267 | .ident = "Acer Aspire 5100", |
| 268 | .matches = { |
| 269 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 270 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"), |
| 271 | }, |
| 272 | .driver_data = &quirk_acer_travelmate_2490, |
| 273 | }, |
| 274 | { |
| 275 | .callback = dmi_matched, |
Carlos Corbacho | ed9cfe9 | 2008-03-12 20:13:00 +0000 | [diff] [blame] | 276 | .ident = "Acer Aspire 5610", |
| 277 | .matches = { |
| 278 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 279 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"), |
| 280 | }, |
| 281 | .driver_data = &quirk_acer_travelmate_2490, |
| 282 | }, |
| 283 | { |
| 284 | .callback = dmi_matched, |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 285 | .ident = "Acer Aspire 5630", |
| 286 | .matches = { |
| 287 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 288 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"), |
| 289 | }, |
| 290 | .driver_data = &quirk_acer_travelmate_2490, |
| 291 | }, |
| 292 | { |
| 293 | .callback = dmi_matched, |
| 294 | .ident = "Acer Aspire 5650", |
| 295 | .matches = { |
| 296 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 297 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"), |
| 298 | }, |
| 299 | .driver_data = &quirk_acer_travelmate_2490, |
| 300 | }, |
| 301 | { |
| 302 | .callback = dmi_matched, |
| 303 | .ident = "Acer Aspire 5680", |
| 304 | .matches = { |
| 305 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 306 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"), |
| 307 | }, |
| 308 | .driver_data = &quirk_acer_travelmate_2490, |
| 309 | }, |
| 310 | { |
| 311 | .callback = dmi_matched, |
| 312 | .ident = "Acer Aspire 9110", |
| 313 | .matches = { |
| 314 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 315 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"), |
| 316 | }, |
| 317 | .driver_data = &quirk_acer_travelmate_2490, |
| 318 | }, |
| 319 | { |
| 320 | .callback = dmi_matched, |
| 321 | .ident = "Acer TravelMate 2490", |
| 322 | .matches = { |
| 323 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 324 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"), |
| 325 | }, |
| 326 | .driver_data = &quirk_acer_travelmate_2490, |
| 327 | }, |
| 328 | { |
| 329 | .callback = dmi_matched, |
Carlos Corbacho | 262ee35 | 2008-02-16 00:02:56 +0000 | [diff] [blame] | 330 | .ident = "Acer TravelMate 4200", |
| 331 | .matches = { |
| 332 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), |
| 333 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"), |
| 334 | }, |
| 335 | .driver_data = &quirk_acer_travelmate_2490, |
| 336 | }, |
| 337 | { |
| 338 | .callback = dmi_matched, |
Carlos Corbacho | 6f061ab | 2008-06-21 09:09:38 +0100 | [diff] [blame] | 339 | .ident = "Fujitsu Siemens Amilo Li 1718", |
| 340 | .matches = { |
| 341 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), |
| 342 | DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"), |
| 343 | }, |
| 344 | .driver_data = &quirk_fujitsu_amilo_li_1718, |
| 345 | }, |
| 346 | { |
| 347 | .callback = dmi_matched, |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 348 | .ident = "Medion MD 98300", |
| 349 | .matches = { |
| 350 | DMI_MATCH(DMI_SYS_VENDOR, "MEDION"), |
| 351 | DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"), |
| 352 | }, |
| 353 | .driver_data = &quirk_medion_md_98300, |
| 354 | }, |
| 355 | {} |
| 356 | }; |
| 357 | |
| 358 | /* Find which quirks are needed for a particular vendor/ model pair */ |
| 359 | static void find_quirks(void) |
| 360 | { |
| 361 | if (!force_series) { |
| 362 | dmi_check_system(acer_quirks); |
| 363 | } else if (force_series == 2490) { |
| 364 | quirks = &quirk_acer_travelmate_2490; |
| 365 | } |
| 366 | |
| 367 | if (quirks == NULL) |
| 368 | quirks = &quirk_unknown; |
| 369 | |
| 370 | set_quirks(); |
| 371 | } |
| 372 | |
| 373 | /* |
| 374 | * General interface convenience methods |
| 375 | */ |
| 376 | |
| 377 | static bool has_cap(u32 cap) |
| 378 | { |
| 379 | if ((interface->capability & cap) != 0) |
| 380 | return 1; |
| 381 | |
| 382 | return 0; |
| 383 | } |
| 384 | |
| 385 | /* |
| 386 | * AMW0 (V1) interface |
| 387 | */ |
| 388 | struct wmab_args { |
| 389 | u32 eax; |
| 390 | u32 ebx; |
| 391 | u32 ecx; |
| 392 | u32 edx; |
| 393 | }; |
| 394 | |
| 395 | struct wmab_ret { |
| 396 | u32 eax; |
| 397 | u32 ebx; |
| 398 | u32 ecx; |
| 399 | u32 edx; |
| 400 | u32 eex; |
| 401 | }; |
| 402 | |
| 403 | static acpi_status wmab_execute(struct wmab_args *regbuf, |
| 404 | struct acpi_buffer *result) |
| 405 | { |
| 406 | struct acpi_buffer input; |
| 407 | acpi_status status; |
| 408 | input.length = sizeof(struct wmab_args); |
| 409 | input.pointer = (u8 *)regbuf; |
| 410 | |
| 411 | status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result); |
| 412 | |
| 413 | return status; |
| 414 | } |
| 415 | |
| 416 | static acpi_status AMW0_get_u32(u32 *value, u32 cap, |
| 417 | struct wmi_interface *iface) |
| 418 | { |
| 419 | int err; |
| 420 | u8 result; |
| 421 | |
| 422 | switch (cap) { |
| 423 | case ACER_CAP_MAILLED: |
| 424 | switch (quirks->mailled) { |
| 425 | default: |
| 426 | err = ec_read(0xA, &result); |
| 427 | if (err) |
| 428 | return AE_ERROR; |
| 429 | *value = (result >> 7) & 0x1; |
| 430 | return AE_OK; |
| 431 | } |
| 432 | break; |
| 433 | case ACER_CAP_WIRELESS: |
| 434 | switch (quirks->wireless) { |
| 435 | case 1: |
| 436 | err = ec_read(0x7B, &result); |
| 437 | if (err) |
| 438 | return AE_ERROR; |
| 439 | *value = result & 0x1; |
| 440 | return AE_OK; |
Carlos Corbacho | 6f061ab | 2008-06-21 09:09:38 +0100 | [diff] [blame] | 441 | case 2: |
| 442 | err = ec_read(0x71, &result); |
| 443 | if (err) |
| 444 | return AE_ERROR; |
| 445 | *value = result & 0x1; |
| 446 | return AE_OK; |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 447 | default: |
| 448 | err = ec_read(0xA, &result); |
| 449 | if (err) |
| 450 | return AE_ERROR; |
| 451 | *value = (result >> 2) & 0x1; |
| 452 | return AE_OK; |
| 453 | } |
| 454 | break; |
| 455 | case ACER_CAP_BLUETOOTH: |
| 456 | switch (quirks->bluetooth) { |
| 457 | default: |
| 458 | err = ec_read(0xA, &result); |
| 459 | if (err) |
| 460 | return AE_ERROR; |
| 461 | *value = (result >> 4) & 0x1; |
| 462 | return AE_OK; |
| 463 | } |
| 464 | break; |
| 465 | case ACER_CAP_BRIGHTNESS: |
| 466 | switch (quirks->brightness) { |
| 467 | default: |
| 468 | err = ec_read(0x83, &result); |
| 469 | if (err) |
| 470 | return AE_ERROR; |
| 471 | *value = result; |
| 472 | return AE_OK; |
| 473 | } |
| 474 | break; |
| 475 | default: |
| 476 | return AE_BAD_ADDRESS; |
| 477 | } |
| 478 | return AE_OK; |
| 479 | } |
| 480 | |
| 481 | static acpi_status AMW0_set_u32(u32 value, u32 cap, struct wmi_interface *iface) |
| 482 | { |
| 483 | struct wmab_args args; |
| 484 | |
| 485 | args.eax = ACER_AMW0_WRITE; |
| 486 | args.ebx = value ? (1<<8) : 0; |
| 487 | args.ecx = args.edx = 0; |
| 488 | |
| 489 | switch (cap) { |
| 490 | case ACER_CAP_MAILLED: |
| 491 | if (value > 1) |
| 492 | return AE_BAD_PARAMETER; |
| 493 | args.ebx |= ACER_AMW0_MAILLED_MASK; |
| 494 | break; |
| 495 | case ACER_CAP_WIRELESS: |
| 496 | if (value > 1) |
| 497 | return AE_BAD_PARAMETER; |
| 498 | args.ebx |= ACER_AMW0_WIRELESS_MASK; |
| 499 | break; |
| 500 | case ACER_CAP_BLUETOOTH: |
| 501 | if (value > 1) |
| 502 | return AE_BAD_PARAMETER; |
| 503 | args.ebx |= ACER_AMW0_BLUETOOTH_MASK; |
| 504 | break; |
| 505 | case ACER_CAP_BRIGHTNESS: |
| 506 | if (value > max_brightness) |
| 507 | return AE_BAD_PARAMETER; |
| 508 | switch (quirks->brightness) { |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 509 | default: |
Carlos Corbacho | 4609d02 | 2008-02-08 23:51:49 +0000 | [diff] [blame] | 510 | return ec_write(0x83, value); |
| 511 | break; |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 512 | } |
| 513 | default: |
| 514 | return AE_BAD_ADDRESS; |
| 515 | } |
| 516 | |
| 517 | /* Actually do the set */ |
| 518 | return wmab_execute(&args, NULL); |
| 519 | } |
| 520 | |
| 521 | static acpi_status AMW0_find_mailled(void) |
| 522 | { |
| 523 | struct wmab_args args; |
| 524 | struct wmab_ret ret; |
| 525 | acpi_status status = AE_OK; |
| 526 | struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 527 | union acpi_object *obj; |
| 528 | |
| 529 | args.eax = 0x86; |
| 530 | args.ebx = args.ecx = args.edx = 0; |
| 531 | |
| 532 | status = wmab_execute(&args, &out); |
| 533 | if (ACPI_FAILURE(status)) |
| 534 | return status; |
| 535 | |
| 536 | obj = (union acpi_object *) out.pointer; |
| 537 | if (obj && obj->type == ACPI_TYPE_BUFFER && |
| 538 | obj->buffer.length == sizeof(struct wmab_ret)) { |
| 539 | ret = *((struct wmab_ret *) obj->buffer.pointer); |
| 540 | } else { |
| 541 | return AE_ERROR; |
| 542 | } |
| 543 | |
| 544 | if (ret.eex & 0x1) |
| 545 | interface->capability |= ACER_CAP_MAILLED; |
| 546 | |
| 547 | kfree(out.pointer); |
| 548 | |
| 549 | return AE_OK; |
| 550 | } |
| 551 | |
| 552 | static acpi_status AMW0_set_capabilities(void) |
| 553 | { |
| 554 | struct wmab_args args; |
| 555 | struct wmab_ret ret; |
| 556 | acpi_status status = AE_OK; |
| 557 | struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 558 | union acpi_object *obj; |
| 559 | |
Carlos Corbacho | 5753dd5 | 2008-06-21 09:09:48 +0100 | [diff] [blame] | 560 | /* |
| 561 | * On laptops with this strange GUID (non Acer), normal probing doesn't |
| 562 | * work. |
| 563 | */ |
| 564 | if (wmi_has_guid(AMW0_GUID2)) { |
| 565 | interface->capability |= ACER_CAP_WIRELESS; |
| 566 | return AE_OK; |
| 567 | } |
| 568 | |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 569 | args.eax = ACER_AMW0_WRITE; |
| 570 | args.ecx = args.edx = 0; |
| 571 | |
| 572 | args.ebx = 0xa2 << 8; |
| 573 | args.ebx |= ACER_AMW0_WIRELESS_MASK; |
| 574 | |
| 575 | status = wmab_execute(&args, &out); |
| 576 | if (ACPI_FAILURE(status)) |
| 577 | return status; |
| 578 | |
| 579 | obj = (union acpi_object *) out.pointer; |
| 580 | if (obj && obj->type == ACPI_TYPE_BUFFER && |
| 581 | obj->buffer.length == sizeof(struct wmab_ret)) { |
| 582 | ret = *((struct wmab_ret *) obj->buffer.pointer); |
| 583 | } else { |
| 584 | return AE_ERROR; |
| 585 | } |
| 586 | |
| 587 | if (ret.eax & 0x1) |
| 588 | interface->capability |= ACER_CAP_WIRELESS; |
| 589 | |
| 590 | args.ebx = 2 << 8; |
| 591 | args.ebx |= ACER_AMW0_BLUETOOTH_MASK; |
| 592 | |
| 593 | status = wmab_execute(&args, &out); |
| 594 | if (ACPI_FAILURE(status)) |
| 595 | return status; |
| 596 | |
| 597 | obj = (union acpi_object *) out.pointer; |
| 598 | if (obj && obj->type == ACPI_TYPE_BUFFER |
| 599 | && obj->buffer.length == sizeof(struct wmab_ret)) { |
| 600 | ret = *((struct wmab_ret *) obj->buffer.pointer); |
| 601 | } else { |
| 602 | return AE_ERROR; |
| 603 | } |
| 604 | |
| 605 | if (ret.eax & 0x1) |
| 606 | interface->capability |= ACER_CAP_BLUETOOTH; |
| 607 | |
| 608 | kfree(out.pointer); |
| 609 | |
| 610 | /* |
| 611 | * This appears to be safe to enable, since all Wistron based laptops |
| 612 | * appear to use the same EC register for brightness, even if they |
| 613 | * differ for wireless, etc |
| 614 | */ |
Carlos Corbacho | 9991d9f | 2008-06-21 09:09:22 +0100 | [diff] [blame] | 615 | if (quirks->brightness >= 0) |
| 616 | interface->capability |= ACER_CAP_BRIGHTNESS; |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 617 | |
| 618 | return AE_OK; |
| 619 | } |
| 620 | |
| 621 | static struct wmi_interface AMW0_interface = { |
| 622 | .type = ACER_AMW0, |
| 623 | }; |
| 624 | |
| 625 | static struct wmi_interface AMW0_V2_interface = { |
| 626 | .type = ACER_AMW0_V2, |
| 627 | }; |
| 628 | |
| 629 | /* |
| 630 | * New interface (The WMID interface) |
| 631 | */ |
| 632 | static acpi_status |
| 633 | WMI_execute_u32(u32 method_id, u32 in, u32 *out) |
| 634 | { |
| 635 | struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) }; |
| 636 | struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 637 | union acpi_object *obj; |
| 638 | u32 tmp; |
| 639 | acpi_status status; |
| 640 | |
| 641 | status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result); |
| 642 | |
| 643 | if (ACPI_FAILURE(status)) |
| 644 | return status; |
| 645 | |
| 646 | obj = (union acpi_object *) result.pointer; |
| 647 | if (obj && obj->type == ACPI_TYPE_BUFFER && |
| 648 | obj->buffer.length == sizeof(u32)) { |
| 649 | tmp = *((u32 *) obj->buffer.pointer); |
| 650 | } else { |
| 651 | tmp = 0; |
| 652 | } |
| 653 | |
| 654 | if (out) |
| 655 | *out = tmp; |
| 656 | |
| 657 | kfree(result.pointer); |
| 658 | |
| 659 | return status; |
| 660 | } |
| 661 | |
| 662 | static acpi_status WMID_get_u32(u32 *value, u32 cap, |
| 663 | struct wmi_interface *iface) |
| 664 | { |
| 665 | acpi_status status; |
| 666 | u8 tmp; |
| 667 | u32 result, method_id = 0; |
| 668 | |
| 669 | switch (cap) { |
| 670 | case ACER_CAP_WIRELESS: |
| 671 | method_id = ACER_WMID_GET_WIRELESS_METHODID; |
| 672 | break; |
| 673 | case ACER_CAP_BLUETOOTH: |
| 674 | method_id = ACER_WMID_GET_BLUETOOTH_METHODID; |
| 675 | break; |
| 676 | case ACER_CAP_BRIGHTNESS: |
| 677 | method_id = ACER_WMID_GET_BRIGHTNESS_METHODID; |
| 678 | break; |
| 679 | case ACER_CAP_THREEG: |
| 680 | method_id = ACER_WMID_GET_THREEG_METHODID; |
| 681 | break; |
| 682 | case ACER_CAP_MAILLED: |
| 683 | if (quirks->mailled == 1) { |
| 684 | ec_read(0x9f, &tmp); |
| 685 | *value = tmp & 0x1; |
| 686 | return 0; |
| 687 | } |
| 688 | default: |
| 689 | return AE_BAD_ADDRESS; |
| 690 | } |
| 691 | status = WMI_execute_u32(method_id, 0, &result); |
| 692 | |
| 693 | if (ACPI_SUCCESS(status)) |
| 694 | *value = (u8)result; |
| 695 | |
| 696 | return status; |
| 697 | } |
| 698 | |
| 699 | static acpi_status WMID_set_u32(u32 value, u32 cap, struct wmi_interface *iface) |
| 700 | { |
| 701 | u32 method_id = 0; |
| 702 | char param; |
| 703 | |
| 704 | switch (cap) { |
| 705 | case ACER_CAP_BRIGHTNESS: |
| 706 | if (value > max_brightness) |
| 707 | return AE_BAD_PARAMETER; |
| 708 | method_id = ACER_WMID_SET_BRIGHTNESS_METHODID; |
| 709 | break; |
| 710 | case ACER_CAP_WIRELESS: |
| 711 | if (value > 1) |
| 712 | return AE_BAD_PARAMETER; |
| 713 | method_id = ACER_WMID_SET_WIRELESS_METHODID; |
| 714 | break; |
| 715 | case ACER_CAP_BLUETOOTH: |
| 716 | if (value > 1) |
| 717 | return AE_BAD_PARAMETER; |
| 718 | method_id = ACER_WMID_SET_BLUETOOTH_METHODID; |
| 719 | break; |
| 720 | case ACER_CAP_THREEG: |
| 721 | if (value > 1) |
| 722 | return AE_BAD_PARAMETER; |
| 723 | method_id = ACER_WMID_SET_THREEG_METHODID; |
| 724 | break; |
| 725 | case ACER_CAP_MAILLED: |
| 726 | if (value > 1) |
| 727 | return AE_BAD_PARAMETER; |
| 728 | if (quirks->mailled == 1) { |
| 729 | param = value ? 0x92 : 0x93; |
| 730 | i8042_command(¶m, 0x1059); |
| 731 | return 0; |
| 732 | } |
| 733 | break; |
| 734 | default: |
| 735 | return AE_BAD_ADDRESS; |
| 736 | } |
| 737 | return WMI_execute_u32(method_id, (u32)value, NULL); |
| 738 | } |
| 739 | |
| 740 | static acpi_status WMID_set_capabilities(void) |
| 741 | { |
| 742 | struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL}; |
| 743 | union acpi_object *obj; |
| 744 | acpi_status status; |
| 745 | u32 devices; |
| 746 | |
| 747 | status = wmi_query_block(WMID_GUID2, 1, &out); |
| 748 | if (ACPI_FAILURE(status)) |
| 749 | return status; |
| 750 | |
| 751 | obj = (union acpi_object *) out.pointer; |
| 752 | if (obj && obj->type == ACPI_TYPE_BUFFER && |
| 753 | obj->buffer.length == sizeof(u32)) { |
| 754 | devices = *((u32 *) obj->buffer.pointer); |
| 755 | } else { |
| 756 | return AE_ERROR; |
| 757 | } |
| 758 | |
| 759 | /* Not sure on the meaning of the relevant bits yet to detect these */ |
| 760 | interface->capability |= ACER_CAP_WIRELESS; |
| 761 | interface->capability |= ACER_CAP_THREEG; |
| 762 | |
| 763 | /* WMID always provides brightness methods */ |
| 764 | interface->capability |= ACER_CAP_BRIGHTNESS; |
| 765 | |
| 766 | if (devices & 0x10) |
| 767 | interface->capability |= ACER_CAP_BLUETOOTH; |
| 768 | |
| 769 | if (!(devices & 0x20)) |
| 770 | max_brightness = 0x9; |
| 771 | |
| 772 | return status; |
| 773 | } |
| 774 | |
| 775 | static struct wmi_interface wmid_interface = { |
| 776 | .type = ACER_WMID, |
| 777 | }; |
| 778 | |
| 779 | /* |
| 780 | * Generic Device (interface-independent) |
| 781 | */ |
| 782 | |
| 783 | static acpi_status get_u32(u32 *value, u32 cap) |
| 784 | { |
| 785 | acpi_status status = AE_BAD_ADDRESS; |
| 786 | |
| 787 | switch (interface->type) { |
| 788 | case ACER_AMW0: |
| 789 | status = AMW0_get_u32(value, cap, interface); |
| 790 | break; |
| 791 | case ACER_AMW0_V2: |
| 792 | if (cap == ACER_CAP_MAILLED) { |
| 793 | status = AMW0_get_u32(value, cap, interface); |
| 794 | break; |
| 795 | } |
| 796 | case ACER_WMID: |
| 797 | status = WMID_get_u32(value, cap, interface); |
| 798 | break; |
| 799 | } |
| 800 | |
| 801 | return status; |
| 802 | } |
| 803 | |
| 804 | static acpi_status set_u32(u32 value, u32 cap) |
| 805 | { |
| 806 | if (interface->capability & cap) { |
| 807 | switch (interface->type) { |
| 808 | case ACER_AMW0: |
| 809 | return AMW0_set_u32(value, cap, interface); |
| 810 | case ACER_AMW0_V2: |
| 811 | case ACER_WMID: |
| 812 | return WMID_set_u32(value, cap, interface); |
| 813 | default: |
| 814 | return AE_BAD_PARAMETER; |
| 815 | } |
| 816 | } |
| 817 | return AE_BAD_PARAMETER; |
| 818 | } |
| 819 | |
| 820 | static void __init acer_commandline_init(void) |
| 821 | { |
| 822 | /* |
| 823 | * These will all fail silently if the value given is invalid, or the |
| 824 | * capability isn't available on the given interface |
| 825 | */ |
| 826 | set_u32(mailled, ACER_CAP_MAILLED); |
| 827 | set_u32(wireless, ACER_CAP_WIRELESS); |
| 828 | set_u32(bluetooth, ACER_CAP_BLUETOOTH); |
| 829 | set_u32(threeg, ACER_CAP_THREEG); |
| 830 | set_u32(brightness, ACER_CAP_BRIGHTNESS); |
| 831 | } |
| 832 | |
| 833 | /* |
| 834 | * LED device (Mail LED only, no other LEDs known yet) |
| 835 | */ |
| 836 | static void mail_led_set(struct led_classdev *led_cdev, |
| 837 | enum led_brightness value) |
| 838 | { |
| 839 | set_u32(value, ACER_CAP_MAILLED); |
| 840 | } |
| 841 | |
| 842 | static struct led_classdev mail_led = { |
Carlos Corbacho | 343c004 | 2008-02-24 13:34:18 +0000 | [diff] [blame] | 843 | .name = "acer-wmi::mail", |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 844 | .brightness_set = mail_led_set, |
| 845 | }; |
| 846 | |
Sam Ravnborg | 7560e38 | 2008-02-17 13:22:54 +0100 | [diff] [blame] | 847 | static int __devinit acer_led_init(struct device *dev) |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 848 | { |
| 849 | return led_classdev_register(dev, &mail_led); |
| 850 | } |
| 851 | |
| 852 | static void acer_led_exit(void) |
| 853 | { |
| 854 | led_classdev_unregister(&mail_led); |
| 855 | } |
| 856 | |
| 857 | /* |
| 858 | * Backlight device |
| 859 | */ |
| 860 | static struct backlight_device *acer_backlight_device; |
| 861 | |
| 862 | static int read_brightness(struct backlight_device *bd) |
| 863 | { |
| 864 | u32 value; |
| 865 | get_u32(&value, ACER_CAP_BRIGHTNESS); |
| 866 | return value; |
| 867 | } |
| 868 | |
| 869 | static int update_bl_status(struct backlight_device *bd) |
| 870 | { |
Carlos Corbacho | f2b585b | 2008-06-21 09:09:27 +0100 | [diff] [blame] | 871 | int intensity = bd->props.brightness; |
| 872 | |
| 873 | if (bd->props.power != FB_BLANK_UNBLANK) |
| 874 | intensity = 0; |
| 875 | if (bd->props.fb_blank != FB_BLANK_UNBLANK) |
| 876 | intensity = 0; |
| 877 | |
| 878 | set_u32(intensity, ACER_CAP_BRIGHTNESS); |
| 879 | |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 880 | return 0; |
| 881 | } |
| 882 | |
| 883 | static struct backlight_ops acer_bl_ops = { |
| 884 | .get_brightness = read_brightness, |
| 885 | .update_status = update_bl_status, |
| 886 | }; |
| 887 | |
Sam Ravnborg | 7560e38 | 2008-02-17 13:22:54 +0100 | [diff] [blame] | 888 | static int __devinit acer_backlight_init(struct device *dev) |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 889 | { |
| 890 | struct backlight_device *bd; |
| 891 | |
| 892 | bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops); |
| 893 | if (IS_ERR(bd)) { |
| 894 | printk(ACER_ERR "Could not register Acer backlight device\n"); |
| 895 | acer_backlight_device = NULL; |
| 896 | return PTR_ERR(bd); |
| 897 | } |
| 898 | |
| 899 | acer_backlight_device = bd; |
| 900 | |
Carlos Corbacho | f2b585b | 2008-06-21 09:09:27 +0100 | [diff] [blame] | 901 | bd->props.power = FB_BLANK_UNBLANK; |
| 902 | bd->props.brightness = max_brightness; |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 903 | bd->props.max_brightness = max_brightness; |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 904 | backlight_update_status(bd); |
| 905 | return 0; |
| 906 | } |
| 907 | |
Sam Ravnborg | 7560e38 | 2008-02-17 13:22:54 +0100 | [diff] [blame] | 908 | static void acer_backlight_exit(void) |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 909 | { |
| 910 | backlight_device_unregister(acer_backlight_device); |
| 911 | } |
| 912 | |
| 913 | /* |
| 914 | * Read/ write bool sysfs macro |
| 915 | */ |
| 916 | #define show_set_bool(value, cap) \ |
| 917 | static ssize_t \ |
| 918 | show_bool_##value(struct device *dev, struct device_attribute *attr, \ |
| 919 | char *buf) \ |
| 920 | { \ |
| 921 | u32 result; \ |
| 922 | acpi_status status = get_u32(&result, cap); \ |
| 923 | if (ACPI_SUCCESS(status)) \ |
| 924 | return sprintf(buf, "%u\n", result); \ |
| 925 | return sprintf(buf, "Read error\n"); \ |
| 926 | } \ |
| 927 | \ |
| 928 | static ssize_t \ |
| 929 | set_bool_##value(struct device *dev, struct device_attribute *attr, \ |
| 930 | const char *buf, size_t count) \ |
| 931 | { \ |
| 932 | u32 tmp = simple_strtoul(buf, NULL, 10); \ |
| 933 | acpi_status status = set_u32(tmp, cap); \ |
| 934 | if (ACPI_FAILURE(status)) \ |
| 935 | return -EINVAL; \ |
| 936 | return count; \ |
| 937 | } \ |
| 938 | static DEVICE_ATTR(value, S_IWUGO | S_IRUGO | S_IWUSR, \ |
| 939 | show_bool_##value, set_bool_##value); |
| 940 | |
| 941 | show_set_bool(wireless, ACER_CAP_WIRELESS); |
| 942 | show_set_bool(bluetooth, ACER_CAP_BLUETOOTH); |
| 943 | show_set_bool(threeg, ACER_CAP_THREEG); |
| 944 | |
| 945 | /* |
| 946 | * Read interface sysfs macro |
| 947 | */ |
| 948 | static ssize_t show_interface(struct device *dev, struct device_attribute *attr, |
| 949 | char *buf) |
| 950 | { |
| 951 | switch (interface->type) { |
| 952 | case ACER_AMW0: |
| 953 | return sprintf(buf, "AMW0\n"); |
| 954 | case ACER_AMW0_V2: |
| 955 | return sprintf(buf, "AMW0 v2\n"); |
| 956 | case ACER_WMID: |
| 957 | return sprintf(buf, "WMID\n"); |
| 958 | default: |
| 959 | return sprintf(buf, "Error!\n"); |
| 960 | } |
| 961 | } |
| 962 | |
| 963 | static DEVICE_ATTR(interface, S_IWUGO | S_IRUGO | S_IWUSR, |
| 964 | show_interface, NULL); |
| 965 | |
| 966 | /* |
Carlos Corbacho | 8114352 | 2008-06-21 09:09:53 +0100 | [diff] [blame] | 967 | * debugfs functions |
| 968 | */ |
| 969 | static u32 get_wmid_devices(void) |
| 970 | { |
| 971 | struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL}; |
| 972 | union acpi_object *obj; |
| 973 | acpi_status status; |
| 974 | |
| 975 | status = wmi_query_block(WMID_GUID2, 1, &out); |
| 976 | if (ACPI_FAILURE(status)) |
| 977 | return 0; |
| 978 | |
| 979 | obj = (union acpi_object *) out.pointer; |
| 980 | if (obj && obj->type == ACPI_TYPE_BUFFER && |
| 981 | obj->buffer.length == sizeof(u32)) { |
| 982 | return *((u32 *) obj->buffer.pointer); |
| 983 | } else { |
| 984 | return 0; |
| 985 | } |
| 986 | } |
| 987 | |
| 988 | /* |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 989 | * Platform device |
| 990 | */ |
| 991 | static int __devinit acer_platform_probe(struct platform_device *device) |
| 992 | { |
| 993 | int err; |
| 994 | |
| 995 | if (has_cap(ACER_CAP_MAILLED)) { |
| 996 | err = acer_led_init(&device->dev); |
| 997 | if (err) |
| 998 | goto error_mailled; |
| 999 | } |
| 1000 | |
| 1001 | if (has_cap(ACER_CAP_BRIGHTNESS)) { |
| 1002 | err = acer_backlight_init(&device->dev); |
| 1003 | if (err) |
| 1004 | goto error_brightness; |
| 1005 | } |
| 1006 | |
| 1007 | return 0; |
| 1008 | |
| 1009 | error_brightness: |
| 1010 | acer_led_exit(); |
| 1011 | error_mailled: |
| 1012 | return err; |
| 1013 | } |
| 1014 | |
| 1015 | static int acer_platform_remove(struct platform_device *device) |
| 1016 | { |
| 1017 | if (has_cap(ACER_CAP_MAILLED)) |
| 1018 | acer_led_exit(); |
| 1019 | if (has_cap(ACER_CAP_BRIGHTNESS)) |
| 1020 | acer_backlight_exit(); |
| 1021 | return 0; |
| 1022 | } |
| 1023 | |
| 1024 | static int acer_platform_suspend(struct platform_device *dev, |
| 1025 | pm_message_t state) |
| 1026 | { |
| 1027 | u32 value; |
| 1028 | struct acer_data *data = &interface->data; |
| 1029 | |
| 1030 | if (!data) |
| 1031 | return -ENOMEM; |
| 1032 | |
| 1033 | if (has_cap(ACER_CAP_WIRELESS)) { |
| 1034 | get_u32(&value, ACER_CAP_WIRELESS); |
| 1035 | data->wireless = value; |
| 1036 | } |
| 1037 | |
| 1038 | if (has_cap(ACER_CAP_BLUETOOTH)) { |
| 1039 | get_u32(&value, ACER_CAP_BLUETOOTH); |
| 1040 | data->bluetooth = value; |
| 1041 | } |
| 1042 | |
| 1043 | if (has_cap(ACER_CAP_MAILLED)) { |
| 1044 | get_u32(&value, ACER_CAP_MAILLED); |
| 1045 | data->mailled = value; |
| 1046 | } |
| 1047 | |
| 1048 | if (has_cap(ACER_CAP_BRIGHTNESS)) { |
| 1049 | get_u32(&value, ACER_CAP_BRIGHTNESS); |
| 1050 | data->brightness = value; |
| 1051 | } |
| 1052 | |
| 1053 | return 0; |
| 1054 | } |
| 1055 | |
| 1056 | static int acer_platform_resume(struct platform_device *device) |
| 1057 | { |
| 1058 | struct acer_data *data = &interface->data; |
| 1059 | |
| 1060 | if (!data) |
| 1061 | return -ENOMEM; |
| 1062 | |
| 1063 | if (has_cap(ACER_CAP_WIRELESS)) |
| 1064 | set_u32(data->wireless, ACER_CAP_WIRELESS); |
| 1065 | |
| 1066 | if (has_cap(ACER_CAP_BLUETOOTH)) |
| 1067 | set_u32(data->bluetooth, ACER_CAP_BLUETOOTH); |
| 1068 | |
| 1069 | if (has_cap(ACER_CAP_THREEG)) |
| 1070 | set_u32(data->threeg, ACER_CAP_THREEG); |
| 1071 | |
| 1072 | if (has_cap(ACER_CAP_MAILLED)) |
| 1073 | set_u32(data->mailled, ACER_CAP_MAILLED); |
| 1074 | |
| 1075 | if (has_cap(ACER_CAP_BRIGHTNESS)) |
| 1076 | set_u32(data->brightness, ACER_CAP_BRIGHTNESS); |
| 1077 | |
| 1078 | return 0; |
| 1079 | } |
| 1080 | |
| 1081 | static struct platform_driver acer_platform_driver = { |
| 1082 | .driver = { |
| 1083 | .name = "acer-wmi", |
| 1084 | .owner = THIS_MODULE, |
| 1085 | }, |
| 1086 | .probe = acer_platform_probe, |
| 1087 | .remove = acer_platform_remove, |
| 1088 | .suspend = acer_platform_suspend, |
| 1089 | .resume = acer_platform_resume, |
| 1090 | }; |
| 1091 | |
| 1092 | static struct platform_device *acer_platform_device; |
| 1093 | |
| 1094 | static int remove_sysfs(struct platform_device *device) |
| 1095 | { |
| 1096 | if (has_cap(ACER_CAP_WIRELESS)) |
| 1097 | device_remove_file(&device->dev, &dev_attr_wireless); |
| 1098 | |
| 1099 | if (has_cap(ACER_CAP_BLUETOOTH)) |
| 1100 | device_remove_file(&device->dev, &dev_attr_bluetooth); |
| 1101 | |
| 1102 | if (has_cap(ACER_CAP_THREEG)) |
| 1103 | device_remove_file(&device->dev, &dev_attr_threeg); |
| 1104 | |
| 1105 | device_remove_file(&device->dev, &dev_attr_interface); |
| 1106 | |
| 1107 | return 0; |
| 1108 | } |
| 1109 | |
| 1110 | static int create_sysfs(void) |
| 1111 | { |
| 1112 | int retval = -ENOMEM; |
| 1113 | |
| 1114 | if (has_cap(ACER_CAP_WIRELESS)) { |
| 1115 | retval = device_create_file(&acer_platform_device->dev, |
| 1116 | &dev_attr_wireless); |
| 1117 | if (retval) |
| 1118 | goto error_sysfs; |
| 1119 | } |
| 1120 | |
| 1121 | if (has_cap(ACER_CAP_BLUETOOTH)) { |
| 1122 | retval = device_create_file(&acer_platform_device->dev, |
| 1123 | &dev_attr_bluetooth); |
| 1124 | if (retval) |
| 1125 | goto error_sysfs; |
| 1126 | } |
| 1127 | |
| 1128 | if (has_cap(ACER_CAP_THREEG)) { |
| 1129 | retval = device_create_file(&acer_platform_device->dev, |
| 1130 | &dev_attr_threeg); |
| 1131 | if (retval) |
| 1132 | goto error_sysfs; |
| 1133 | } |
| 1134 | |
| 1135 | retval = device_create_file(&acer_platform_device->dev, |
| 1136 | &dev_attr_interface); |
| 1137 | if (retval) |
| 1138 | goto error_sysfs; |
| 1139 | |
| 1140 | return 0; |
| 1141 | |
| 1142 | error_sysfs: |
| 1143 | remove_sysfs(acer_platform_device); |
| 1144 | return retval; |
| 1145 | } |
| 1146 | |
Carlos Corbacho | 8114352 | 2008-06-21 09:09:53 +0100 | [diff] [blame] | 1147 | static void remove_debugfs(void) |
| 1148 | { |
| 1149 | debugfs_remove(interface->debug.devices); |
| 1150 | debugfs_remove(interface->debug.root); |
| 1151 | } |
| 1152 | |
| 1153 | static int create_debugfs(void) |
| 1154 | { |
| 1155 | interface->debug.root = debugfs_create_dir("acer-wmi", NULL); |
| 1156 | if (!interface->debug.root) { |
| 1157 | printk(ACER_ERR "Failed to create debugfs directory"); |
| 1158 | return -ENOMEM; |
| 1159 | } |
| 1160 | |
| 1161 | interface->debug.devices = debugfs_create_u32("devices", S_IRUGO, |
| 1162 | interface->debug.root, |
| 1163 | &interface->debug.wmid_devices); |
| 1164 | if (!interface->debug.devices) |
| 1165 | goto error_debugfs; |
| 1166 | |
| 1167 | return 0; |
| 1168 | |
| 1169 | error_debugfs: |
| 1170 | remove_debugfs(); |
| 1171 | return -ENOMEM; |
| 1172 | } |
| 1173 | |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1174 | static int __init acer_wmi_init(void) |
| 1175 | { |
| 1176 | int err; |
| 1177 | |
Carlos Corbacho | 860f0c6 | 2008-06-21 09:09:58 +0100 | [diff] [blame] | 1178 | printk(ACER_INFO "Acer Laptop ACPI-WMI Extras\n"); |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1179 | |
Carlos Corbacho | 9991d9f | 2008-06-21 09:09:22 +0100 | [diff] [blame] | 1180 | find_quirks(); |
| 1181 | |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1182 | /* |
| 1183 | * Detect which ACPI-WMI interface we're using. |
| 1184 | */ |
| 1185 | if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1)) |
| 1186 | interface = &AMW0_V2_interface; |
| 1187 | |
| 1188 | if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1)) |
| 1189 | interface = &wmid_interface; |
| 1190 | |
| 1191 | if (wmi_has_guid(WMID_GUID2) && interface) { |
| 1192 | if (ACPI_FAILURE(WMID_set_capabilities())) { |
Carlos Corbacho | 8d039bc | 2008-03-12 20:12:50 +0000 | [diff] [blame] | 1193 | printk(ACER_ERR "Unable to detect available WMID " |
| 1194 | "devices\n"); |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1195 | return -ENODEV; |
| 1196 | } |
| 1197 | } else if (!wmi_has_guid(WMID_GUID2) && interface) { |
Carlos Corbacho | 8d039bc | 2008-03-12 20:12:50 +0000 | [diff] [blame] | 1198 | printk(ACER_ERR "No WMID device detection method found\n"); |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1199 | return -ENODEV; |
| 1200 | } |
| 1201 | |
| 1202 | if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) { |
| 1203 | interface = &AMW0_interface; |
| 1204 | |
| 1205 | if (ACPI_FAILURE(AMW0_set_capabilities())) { |
Carlos Corbacho | 8d039bc | 2008-03-12 20:12:50 +0000 | [diff] [blame] | 1206 | printk(ACER_ERR "Unable to detect available AMW0 " |
| 1207 | "devices\n"); |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1208 | return -ENODEV; |
| 1209 | } |
| 1210 | } |
| 1211 | |
Carlos Corbacho | 9b963c4 | 2008-02-24 13:34:29 +0000 | [diff] [blame] | 1212 | if (wmi_has_guid(AMW0_GUID1)) |
| 1213 | AMW0_find_mailled(); |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1214 | |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1215 | if (!interface) { |
Carlos Corbacho | 8d039bc | 2008-03-12 20:12:50 +0000 | [diff] [blame] | 1216 | printk(ACER_ERR "No or unsupported WMI interface, unable to " |
| 1217 | "load\n"); |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1218 | return -ENODEV; |
| 1219 | } |
| 1220 | |
| 1221 | if (platform_driver_register(&acer_platform_driver)) { |
| 1222 | printk(ACER_ERR "Unable to register platform driver.\n"); |
| 1223 | goto error_platform_register; |
| 1224 | } |
| 1225 | acer_platform_device = platform_device_alloc("acer-wmi", -1); |
| 1226 | platform_device_add(acer_platform_device); |
| 1227 | |
| 1228 | err = create_sysfs(); |
| 1229 | if (err) |
| 1230 | return err; |
| 1231 | |
Carlos Corbacho | 8114352 | 2008-06-21 09:09:53 +0100 | [diff] [blame] | 1232 | if (wmi_has_guid(WMID_GUID2)) { |
| 1233 | interface->debug.wmid_devices = get_wmid_devices(); |
| 1234 | err = create_debugfs(); |
| 1235 | if (err) |
| 1236 | return err; |
| 1237 | } |
| 1238 | |
Carlos Corbacho | 745a5d2 | 2008-02-05 02:17:10 +0000 | [diff] [blame] | 1239 | /* Override any initial settings with values from the commandline */ |
| 1240 | acer_commandline_init(); |
| 1241 | |
| 1242 | return 0; |
| 1243 | |
| 1244 | error_platform_register: |
| 1245 | return -ENODEV; |
| 1246 | } |
| 1247 | |
| 1248 | static void __exit acer_wmi_exit(void) |
| 1249 | { |
| 1250 | remove_sysfs(acer_platform_device); |
| 1251 | platform_device_del(acer_platform_device); |
| 1252 | platform_driver_unregister(&acer_platform_driver); |
| 1253 | |
| 1254 | printk(ACER_INFO "Acer Laptop WMI Extras unloaded\n"); |
| 1255 | return; |
| 1256 | } |
| 1257 | |
| 1258 | module_init(acer_wmi_init); |
| 1259 | module_exit(acer_wmi_exit); |