Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 1 | /* |
| 2 | * eepc-laptop.c - Asus Eee PC extras |
| 3 | * |
| 4 | * Based on asus_acpi.c as patched for the Eee PC by Asus: |
| 5 | * ftp://ftp.asus.com/pub/ASUS/EeePC/701/ASUS_ACPI_071126.rar |
| 6 | * Based on eee.c from eeepc-linux |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | */ |
| 18 | |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/module.h> |
| 21 | #include <linux/init.h> |
| 22 | #include <linux/types.h> |
| 23 | #include <linux/platform_device.h> |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 24 | #include <linux/backlight.h> |
| 25 | #include <linux/fb.h> |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 26 | #include <linux/hwmon.h> |
| 27 | #include <linux/hwmon-sysfs.h> |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 28 | #include <acpi/acpi_drivers.h> |
| 29 | #include <acpi/acpi_bus.h> |
| 30 | #include <linux/uaccess.h> |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 31 | #include <linux/input.h> |
| 32 | #include <linux/rfkill.h> |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 33 | |
| 34 | #define EEEPC_LAPTOP_VERSION "0.1" |
| 35 | |
| 36 | #define EEEPC_HOTK_NAME "Eee PC Hotkey Driver" |
| 37 | #define EEEPC_HOTK_FILE "eeepc" |
| 38 | #define EEEPC_HOTK_CLASS "hotkey" |
| 39 | #define EEEPC_HOTK_DEVICE_NAME "Hotkey" |
| 40 | #define EEEPC_HOTK_HID "ASUS010" |
| 41 | |
| 42 | #define EEEPC_LOG EEEPC_HOTK_FILE ": " |
| 43 | #define EEEPC_ERR KERN_ERR EEEPC_LOG |
| 44 | #define EEEPC_WARNING KERN_WARNING EEEPC_LOG |
| 45 | #define EEEPC_NOTICE KERN_NOTICE EEEPC_LOG |
| 46 | #define EEEPC_INFO KERN_INFO EEEPC_LOG |
| 47 | |
| 48 | /* |
| 49 | * Definitions for Asus EeePC |
| 50 | */ |
| 51 | #define NOTIFY_WLAN_ON 0x10 |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 52 | #define NOTIFY_BRN_MIN 0x20 |
| 53 | #define NOTIFY_BRN_MAX 0x2f |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 54 | |
| 55 | enum { |
| 56 | DISABLE_ASL_WLAN = 0x0001, |
| 57 | DISABLE_ASL_BLUETOOTH = 0x0002, |
| 58 | DISABLE_ASL_IRDA = 0x0004, |
| 59 | DISABLE_ASL_CAMERA = 0x0008, |
| 60 | DISABLE_ASL_TV = 0x0010, |
| 61 | DISABLE_ASL_GPS = 0x0020, |
| 62 | DISABLE_ASL_DISPLAYSWITCH = 0x0040, |
| 63 | DISABLE_ASL_MODEM = 0x0080, |
| 64 | DISABLE_ASL_CARDREADER = 0x0100 |
| 65 | }; |
| 66 | |
| 67 | enum { |
| 68 | CM_ASL_WLAN = 0, |
| 69 | CM_ASL_BLUETOOTH, |
| 70 | CM_ASL_IRDA, |
| 71 | CM_ASL_1394, |
| 72 | CM_ASL_CAMERA, |
| 73 | CM_ASL_TV, |
| 74 | CM_ASL_GPS, |
| 75 | CM_ASL_DVDROM, |
| 76 | CM_ASL_DISPLAYSWITCH, |
| 77 | CM_ASL_PANELBRIGHT, |
| 78 | CM_ASL_BIOSFLASH, |
| 79 | CM_ASL_ACPIFLASH, |
| 80 | CM_ASL_CPUFV, |
| 81 | CM_ASL_CPUTEMPERATURE, |
| 82 | CM_ASL_FANCPU, |
| 83 | CM_ASL_FANCHASSIS, |
| 84 | CM_ASL_USBPORT1, |
| 85 | CM_ASL_USBPORT2, |
| 86 | CM_ASL_USBPORT3, |
| 87 | CM_ASL_MODEM, |
| 88 | CM_ASL_CARDREADER, |
| 89 | CM_ASL_LID |
| 90 | }; |
| 91 | |
Adrian Bunk | 1410946 | 2008-06-25 19:25:47 +0300 | [diff] [blame] | 92 | static const char *cm_getv[] = { |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 93 | "WLDG", NULL, NULL, NULL, |
| 94 | "CAMG", NULL, NULL, NULL, |
| 95 | NULL, "PBLG", NULL, NULL, |
| 96 | "CFVG", NULL, NULL, NULL, |
| 97 | "USBG", NULL, NULL, "MODG", |
| 98 | "CRDG", "LIDG" |
| 99 | }; |
| 100 | |
Adrian Bunk | 1410946 | 2008-06-25 19:25:47 +0300 | [diff] [blame] | 101 | static const char *cm_setv[] = { |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 102 | "WLDS", NULL, NULL, NULL, |
| 103 | "CAMS", NULL, NULL, NULL, |
| 104 | "SDSP", "PBLS", "HDPS", NULL, |
| 105 | "CFVS", NULL, NULL, NULL, |
| 106 | "USBG", NULL, NULL, "MODS", |
| 107 | "CRDS", NULL |
| 108 | }; |
| 109 | |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 110 | #define EEEPC_EC "\\_SB.PCI0.SBRG.EC0." |
| 111 | |
| 112 | #define EEEPC_EC_FAN_PWM EEEPC_EC "SC02" /* Fan PWM duty cycle (%) */ |
| 113 | #define EEEPC_EC_SC02 0x63 |
| 114 | #define EEEPC_EC_FAN_HRPM EEEPC_EC "SC05" /* High byte, fan speed (RPM) */ |
| 115 | #define EEEPC_EC_FAN_LRPM EEEPC_EC "SC06" /* Low byte, fan speed (RPM) */ |
| 116 | #define EEEPC_EC_FAN_CTRL EEEPC_EC "SFB3" /* Byte containing SF25 */ |
| 117 | #define EEEPC_EC_SFB3 0xD3 |
| 118 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 119 | /* |
| 120 | * This is the main structure, we can use it to store useful information |
| 121 | * about the hotk device |
| 122 | */ |
| 123 | struct eeepc_hotk { |
| 124 | struct acpi_device *device; /* the device we are in */ |
| 125 | acpi_handle handle; /* the handle of the hotk device */ |
| 126 | u32 cm_supported; /* the control methods supported |
| 127 | by this BIOS */ |
| 128 | uint init_flag; /* Init flags */ |
| 129 | u16 event_count[128]; /* count for each event */ |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 130 | struct input_dev *inputdev; |
| 131 | u16 *keycode_map; |
| 132 | struct rfkill *eeepc_wlan_rfkill; |
| 133 | struct rfkill *eeepc_bluetooth_rfkill; |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 134 | }; |
| 135 | |
| 136 | /* The actual device the driver binds to */ |
| 137 | static struct eeepc_hotk *ehotk; |
| 138 | |
| 139 | /* Platform device/driver */ |
| 140 | static struct platform_driver platform_driver = { |
| 141 | .driver = { |
| 142 | .name = EEEPC_HOTK_FILE, |
| 143 | .owner = THIS_MODULE, |
| 144 | } |
| 145 | }; |
| 146 | |
| 147 | static struct platform_device *platform_device; |
| 148 | |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 149 | struct key_entry { |
| 150 | char type; |
| 151 | u8 code; |
| 152 | u16 keycode; |
| 153 | }; |
| 154 | |
| 155 | enum { KE_KEY, KE_END }; |
| 156 | |
| 157 | static struct key_entry eeepc_keymap[] = { |
| 158 | /* Sleep already handled via generic ACPI code */ |
| 159 | {KE_KEY, 0x10, KEY_WLAN }, |
| 160 | {KE_KEY, 0x12, KEY_PROG1 }, |
| 161 | {KE_KEY, 0x13, KEY_MUTE }, |
| 162 | {KE_KEY, 0x14, KEY_VOLUMEDOWN }, |
| 163 | {KE_KEY, 0x15, KEY_VOLUMEUP }, |
| 164 | {KE_KEY, 0x30, KEY_SWITCHVIDEOMODE }, |
| 165 | {KE_KEY, 0x31, KEY_SWITCHVIDEOMODE }, |
| 166 | {KE_KEY, 0x32, KEY_SWITCHVIDEOMODE }, |
| 167 | {KE_END, 0}, |
| 168 | }; |
| 169 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 170 | /* |
| 171 | * The hotkey driver declaration |
| 172 | */ |
| 173 | static int eeepc_hotk_add(struct acpi_device *device); |
| 174 | static int eeepc_hotk_remove(struct acpi_device *device, int type); |
| 175 | |
| 176 | static const struct acpi_device_id eeepc_device_ids[] = { |
| 177 | {EEEPC_HOTK_HID, 0}, |
| 178 | {"", 0}, |
| 179 | }; |
| 180 | MODULE_DEVICE_TABLE(acpi, eeepc_device_ids); |
| 181 | |
| 182 | static struct acpi_driver eeepc_hotk_driver = { |
| 183 | .name = EEEPC_HOTK_NAME, |
| 184 | .class = EEEPC_HOTK_CLASS, |
| 185 | .ids = eeepc_device_ids, |
| 186 | .ops = { |
| 187 | .add = eeepc_hotk_add, |
| 188 | .remove = eeepc_hotk_remove, |
| 189 | }, |
| 190 | }; |
| 191 | |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 192 | /* The backlight device /sys/class/backlight */ |
| 193 | static struct backlight_device *eeepc_backlight_device; |
| 194 | |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 195 | /* The hwmon device */ |
| 196 | static struct device *eeepc_hwmon_device; |
| 197 | |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 198 | /* |
| 199 | * The backlight class declaration |
| 200 | */ |
| 201 | static int read_brightness(struct backlight_device *bd); |
| 202 | static int update_bl_status(struct backlight_device *bd); |
| 203 | static struct backlight_ops eeepcbl_ops = { |
| 204 | .get_brightness = read_brightness, |
| 205 | .update_status = update_bl_status, |
| 206 | }; |
| 207 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 208 | MODULE_AUTHOR("Corentin Chary, Eric Cooper"); |
| 209 | MODULE_DESCRIPTION(EEEPC_HOTK_NAME); |
| 210 | MODULE_LICENSE("GPL"); |
| 211 | |
| 212 | /* |
| 213 | * ACPI Helpers |
| 214 | */ |
| 215 | static int write_acpi_int(acpi_handle handle, const char *method, int val, |
| 216 | struct acpi_buffer *output) |
| 217 | { |
| 218 | struct acpi_object_list params; |
| 219 | union acpi_object in_obj; |
| 220 | acpi_status status; |
| 221 | |
| 222 | params.count = 1; |
| 223 | params.pointer = &in_obj; |
| 224 | in_obj.type = ACPI_TYPE_INTEGER; |
| 225 | in_obj.integer.value = val; |
| 226 | |
| 227 | status = acpi_evaluate_object(handle, (char *)method, ¶ms, output); |
| 228 | return (status == AE_OK ? 0 : -1); |
| 229 | } |
| 230 | |
| 231 | static int read_acpi_int(acpi_handle handle, const char *method, int *val) |
| 232 | { |
| 233 | acpi_status status; |
Matthew Wilcox | 27663c5 | 2008-10-10 02:22:59 -0400 | [diff] [blame] | 234 | unsigned long long result; |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 235 | |
| 236 | status = acpi_evaluate_integer(handle, (char *)method, NULL, &result); |
| 237 | if (ACPI_FAILURE(status)) { |
| 238 | *val = -1; |
| 239 | return -1; |
| 240 | } else { |
| 241 | *val = result; |
| 242 | return 0; |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | static int set_acpi(int cm, int value) |
| 247 | { |
| 248 | if (ehotk->cm_supported & (0x1 << cm)) { |
| 249 | const char *method = cm_setv[cm]; |
| 250 | if (method == NULL) |
| 251 | return -ENODEV; |
| 252 | if (write_acpi_int(ehotk->handle, method, value, NULL)) |
| 253 | printk(EEEPC_WARNING "Error writing %s\n", method); |
| 254 | } |
| 255 | return 0; |
| 256 | } |
| 257 | |
| 258 | static int get_acpi(int cm) |
| 259 | { |
| 260 | int value = -1; |
| 261 | if ((ehotk->cm_supported & (0x1 << cm))) { |
| 262 | const char *method = cm_getv[cm]; |
| 263 | if (method == NULL) |
| 264 | return -ENODEV; |
| 265 | if (read_acpi_int(ehotk->handle, method, &value)) |
| 266 | printk(EEEPC_WARNING "Error reading %s\n", method); |
| 267 | } |
| 268 | return value; |
| 269 | } |
| 270 | |
| 271 | /* |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 272 | * Backlight |
| 273 | */ |
| 274 | static int read_brightness(struct backlight_device *bd) |
| 275 | { |
| 276 | return get_acpi(CM_ASL_PANELBRIGHT); |
| 277 | } |
| 278 | |
| 279 | static int set_brightness(struct backlight_device *bd, int value) |
| 280 | { |
| 281 | value = max(0, min(15, value)); |
| 282 | return set_acpi(CM_ASL_PANELBRIGHT, value); |
| 283 | } |
| 284 | |
| 285 | static int update_bl_status(struct backlight_device *bd) |
| 286 | { |
| 287 | return set_brightness(bd, bd->props.brightness); |
| 288 | } |
| 289 | |
| 290 | /* |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 291 | * Rfkill helpers |
| 292 | */ |
| 293 | |
| 294 | static int eeepc_wlan_rfkill_set(void *data, enum rfkill_state state) |
| 295 | { |
| 296 | if (state == RFKILL_STATE_SOFT_BLOCKED) |
| 297 | return set_acpi(CM_ASL_WLAN, 0); |
| 298 | else |
| 299 | return set_acpi(CM_ASL_WLAN, 1); |
| 300 | } |
| 301 | |
| 302 | static int eeepc_wlan_rfkill_state(void *data, enum rfkill_state *state) |
| 303 | { |
| 304 | if (get_acpi(CM_ASL_WLAN) == 1) |
| 305 | *state = RFKILL_STATE_UNBLOCKED; |
| 306 | else |
| 307 | *state = RFKILL_STATE_SOFT_BLOCKED; |
| 308 | return 0; |
| 309 | } |
| 310 | |
| 311 | static int eeepc_bluetooth_rfkill_set(void *data, enum rfkill_state state) |
| 312 | { |
| 313 | if (state == RFKILL_STATE_SOFT_BLOCKED) |
| 314 | return set_acpi(CM_ASL_BLUETOOTH, 0); |
| 315 | else |
| 316 | return set_acpi(CM_ASL_BLUETOOTH, 1); |
| 317 | } |
| 318 | |
| 319 | static int eeepc_bluetooth_rfkill_state(void *data, enum rfkill_state *state) |
| 320 | { |
| 321 | if (get_acpi(CM_ASL_BLUETOOTH) == 1) |
| 322 | *state = RFKILL_STATE_UNBLOCKED; |
| 323 | else |
| 324 | *state = RFKILL_STATE_SOFT_BLOCKED; |
| 325 | return 0; |
| 326 | } |
| 327 | |
| 328 | /* |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 329 | * Sys helpers |
| 330 | */ |
| 331 | static int parse_arg(const char *buf, unsigned long count, int *val) |
| 332 | { |
| 333 | if (!count) |
| 334 | return 0; |
| 335 | if (sscanf(buf, "%i", val) != 1) |
| 336 | return -EINVAL; |
| 337 | return count; |
| 338 | } |
| 339 | |
| 340 | static ssize_t store_sys_acpi(int cm, const char *buf, size_t count) |
| 341 | { |
| 342 | int rv, value; |
| 343 | |
| 344 | rv = parse_arg(buf, count, &value); |
| 345 | if (rv > 0) |
| 346 | set_acpi(cm, value); |
| 347 | return rv; |
| 348 | } |
| 349 | |
| 350 | static ssize_t show_sys_acpi(int cm, char *buf) |
| 351 | { |
| 352 | return sprintf(buf, "%d\n", get_acpi(cm)); |
| 353 | } |
| 354 | |
| 355 | #define EEEPC_CREATE_DEVICE_ATTR(_name, _cm) \ |
| 356 | static ssize_t show_##_name(struct device *dev, \ |
| 357 | struct device_attribute *attr, \ |
| 358 | char *buf) \ |
| 359 | { \ |
| 360 | return show_sys_acpi(_cm, buf); \ |
| 361 | } \ |
| 362 | static ssize_t store_##_name(struct device *dev, \ |
| 363 | struct device_attribute *attr, \ |
| 364 | const char *buf, size_t count) \ |
| 365 | { \ |
| 366 | return store_sys_acpi(_cm, buf, count); \ |
| 367 | } \ |
| 368 | static struct device_attribute dev_attr_##_name = { \ |
| 369 | .attr = { \ |
| 370 | .name = __stringify(_name), \ |
| 371 | .mode = 0644 }, \ |
| 372 | .show = show_##_name, \ |
| 373 | .store = store_##_name, \ |
| 374 | } |
| 375 | |
| 376 | EEEPC_CREATE_DEVICE_ATTR(camera, CM_ASL_CAMERA); |
| 377 | EEEPC_CREATE_DEVICE_ATTR(cardr, CM_ASL_CARDREADER); |
| 378 | EEEPC_CREATE_DEVICE_ATTR(disp, CM_ASL_DISPLAYSWITCH); |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 379 | |
| 380 | static struct attribute *platform_attributes[] = { |
| 381 | &dev_attr_camera.attr, |
| 382 | &dev_attr_cardr.attr, |
| 383 | &dev_attr_disp.attr, |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 384 | NULL |
| 385 | }; |
| 386 | |
| 387 | static struct attribute_group platform_attribute_group = { |
| 388 | .attrs = platform_attributes |
| 389 | }; |
| 390 | |
| 391 | /* |
| 392 | * Hotkey functions |
| 393 | */ |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 394 | static struct key_entry *eepc_get_entry_by_scancode(int code) |
| 395 | { |
| 396 | struct key_entry *key; |
| 397 | |
| 398 | for (key = eeepc_keymap; key->type != KE_END; key++) |
| 399 | if (code == key->code) |
| 400 | return key; |
| 401 | |
| 402 | return NULL; |
| 403 | } |
| 404 | |
| 405 | static struct key_entry *eepc_get_entry_by_keycode(int code) |
| 406 | { |
| 407 | struct key_entry *key; |
| 408 | |
| 409 | for (key = eeepc_keymap; key->type != KE_END; key++) |
| 410 | if (code == key->keycode && key->type == KE_KEY) |
| 411 | return key; |
| 412 | |
| 413 | return NULL; |
| 414 | } |
| 415 | |
| 416 | static int eeepc_getkeycode(struct input_dev *dev, int scancode, int *keycode) |
| 417 | { |
| 418 | struct key_entry *key = eepc_get_entry_by_scancode(scancode); |
| 419 | |
| 420 | if (key && key->type == KE_KEY) { |
| 421 | *keycode = key->keycode; |
| 422 | return 0; |
| 423 | } |
| 424 | |
| 425 | return -EINVAL; |
| 426 | } |
| 427 | |
| 428 | static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode) |
| 429 | { |
| 430 | struct key_entry *key; |
| 431 | int old_keycode; |
| 432 | |
| 433 | if (keycode < 0 || keycode > KEY_MAX) |
| 434 | return -EINVAL; |
| 435 | |
| 436 | key = eepc_get_entry_by_scancode(scancode); |
| 437 | if (key && key->type == KE_KEY) { |
| 438 | old_keycode = key->keycode; |
| 439 | key->keycode = keycode; |
| 440 | set_bit(keycode, dev->keybit); |
| 441 | if (!eepc_get_entry_by_keycode(old_keycode)) |
| 442 | clear_bit(old_keycode, dev->keybit); |
| 443 | return 0; |
| 444 | } |
| 445 | |
| 446 | return -EINVAL; |
| 447 | } |
| 448 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 449 | static int eeepc_hotk_check(void) |
| 450 | { |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 451 | const struct key_entry *key; |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 452 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 453 | int result; |
| 454 | |
| 455 | result = acpi_bus_get_status(ehotk->device); |
| 456 | if (result) |
| 457 | return result; |
| 458 | if (ehotk->device->status.present) { |
| 459 | if (write_acpi_int(ehotk->handle, "INIT", ehotk->init_flag, |
| 460 | &buffer)) { |
| 461 | printk(EEEPC_ERR "Hotkey initialization failed\n"); |
| 462 | return -ENODEV; |
| 463 | } else { |
| 464 | printk(EEEPC_NOTICE "Hotkey init flags 0x%x\n", |
| 465 | ehotk->init_flag); |
| 466 | } |
| 467 | /* get control methods supported */ |
| 468 | if (read_acpi_int(ehotk->handle, "CMSG" |
| 469 | , &ehotk->cm_supported)) { |
| 470 | printk(EEEPC_ERR |
| 471 | "Get control methods supported failed\n"); |
| 472 | return -ENODEV; |
| 473 | } else { |
| 474 | printk(EEEPC_INFO |
| 475 | "Get control methods supported: 0x%x\n", |
| 476 | ehotk->cm_supported); |
| 477 | } |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 478 | ehotk->inputdev = input_allocate_device(); |
| 479 | if (!ehotk->inputdev) { |
| 480 | printk(EEEPC_INFO "Unable to allocate input device\n"); |
| 481 | return 0; |
| 482 | } |
| 483 | ehotk->inputdev->name = "Asus EeePC extra buttons"; |
| 484 | ehotk->inputdev->phys = EEEPC_HOTK_FILE "/input0"; |
| 485 | ehotk->inputdev->id.bustype = BUS_HOST; |
| 486 | ehotk->inputdev->getkeycode = eeepc_getkeycode; |
| 487 | ehotk->inputdev->setkeycode = eeepc_setkeycode; |
| 488 | |
| 489 | for (key = eeepc_keymap; key->type != KE_END; key++) { |
| 490 | switch (key->type) { |
| 491 | case KE_KEY: |
| 492 | set_bit(EV_KEY, ehotk->inputdev->evbit); |
| 493 | set_bit(key->keycode, ehotk->inputdev->keybit); |
| 494 | break; |
| 495 | } |
| 496 | } |
| 497 | result = input_register_device(ehotk->inputdev); |
| 498 | if (result) { |
| 499 | printk(EEEPC_INFO "Unable to register input device\n"); |
| 500 | input_free_device(ehotk->inputdev); |
| 501 | return 0; |
| 502 | } |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 503 | } else { |
| 504 | printk(EEEPC_ERR "Hotkey device not present, aborting\n"); |
| 505 | return -EINVAL; |
| 506 | } |
| 507 | return 0; |
| 508 | } |
| 509 | |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 510 | static void notify_brn(void) |
| 511 | { |
| 512 | struct backlight_device *bd = eeepc_backlight_device; |
| 513 | bd->props.brightness = read_brightness(bd); |
| 514 | } |
| 515 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 516 | static void eeepc_hotk_notify(acpi_handle handle, u32 event, void *data) |
| 517 | { |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 518 | static struct key_entry *key; |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 519 | if (!ehotk) |
| 520 | return; |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 521 | if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX) |
| 522 | notify_brn(); |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 523 | acpi_bus_generate_proc_event(ehotk->device, event, |
| 524 | ehotk->event_count[event % 128]++); |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 525 | if (ehotk->inputdev) { |
| 526 | key = eepc_get_entry_by_scancode(event); |
| 527 | if (key) { |
| 528 | switch (key->type) { |
| 529 | case KE_KEY: |
| 530 | input_report_key(ehotk->inputdev, key->keycode, |
| 531 | 1); |
| 532 | input_sync(ehotk->inputdev); |
| 533 | input_report_key(ehotk->inputdev, key->keycode, |
| 534 | 0); |
| 535 | input_sync(ehotk->inputdev); |
| 536 | break; |
| 537 | } |
| 538 | } |
| 539 | } |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 540 | } |
| 541 | |
| 542 | static int eeepc_hotk_add(struct acpi_device *device) |
| 543 | { |
| 544 | acpi_status status = AE_OK; |
| 545 | int result; |
| 546 | |
| 547 | if (!device) |
| 548 | return -EINVAL; |
| 549 | printk(EEEPC_NOTICE EEEPC_HOTK_NAME "\n"); |
| 550 | ehotk = kzalloc(sizeof(struct eeepc_hotk), GFP_KERNEL); |
| 551 | if (!ehotk) |
| 552 | return -ENOMEM; |
| 553 | ehotk->init_flag = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH; |
| 554 | ehotk->handle = device->handle; |
| 555 | strcpy(acpi_device_name(device), EEEPC_HOTK_DEVICE_NAME); |
| 556 | strcpy(acpi_device_class(device), EEEPC_HOTK_CLASS); |
Pavel Machek | db89b4f | 2008-09-22 14:37:34 -0700 | [diff] [blame] | 557 | device->driver_data = ehotk; |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 558 | ehotk->device = device; |
| 559 | result = eeepc_hotk_check(); |
| 560 | if (result) |
| 561 | goto end; |
| 562 | status = acpi_install_notify_handler(ehotk->handle, ACPI_SYSTEM_NOTIFY, |
| 563 | eeepc_hotk_notify, ehotk); |
| 564 | if (ACPI_FAILURE(status)) |
| 565 | printk(EEEPC_ERR "Error installing notify handler\n"); |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 566 | |
| 567 | if (get_acpi(CM_ASL_WLAN) != -1) { |
| 568 | ehotk->eeepc_wlan_rfkill = rfkill_allocate(&device->dev, |
| 569 | RFKILL_TYPE_WLAN); |
| 570 | |
| 571 | if (!ehotk->eeepc_wlan_rfkill) |
| 572 | goto end; |
| 573 | |
| 574 | ehotk->eeepc_wlan_rfkill->name = "eeepc-wlan"; |
| 575 | ehotk->eeepc_wlan_rfkill->toggle_radio = eeepc_wlan_rfkill_set; |
| 576 | ehotk->eeepc_wlan_rfkill->get_state = eeepc_wlan_rfkill_state; |
| 577 | if (get_acpi(CM_ASL_WLAN) == 1) |
| 578 | ehotk->eeepc_wlan_rfkill->state = |
| 579 | RFKILL_STATE_UNBLOCKED; |
| 580 | else |
| 581 | ehotk->eeepc_wlan_rfkill->state = |
| 582 | RFKILL_STATE_SOFT_BLOCKED; |
| 583 | rfkill_register(ehotk->eeepc_wlan_rfkill); |
| 584 | } |
| 585 | |
| 586 | if (get_acpi(CM_ASL_BLUETOOTH) != -1) { |
| 587 | ehotk->eeepc_bluetooth_rfkill = |
| 588 | rfkill_allocate(&device->dev, RFKILL_TYPE_BLUETOOTH); |
| 589 | |
| 590 | if (!ehotk->eeepc_bluetooth_rfkill) |
| 591 | goto end; |
| 592 | |
| 593 | ehotk->eeepc_bluetooth_rfkill->name = "eeepc-bluetooth"; |
| 594 | ehotk->eeepc_bluetooth_rfkill->toggle_radio = |
| 595 | eeepc_bluetooth_rfkill_set; |
| 596 | ehotk->eeepc_bluetooth_rfkill->get_state = |
| 597 | eeepc_bluetooth_rfkill_state; |
| 598 | if (get_acpi(CM_ASL_BLUETOOTH) == 1) |
| 599 | ehotk->eeepc_bluetooth_rfkill->state = |
| 600 | RFKILL_STATE_UNBLOCKED; |
| 601 | else |
| 602 | ehotk->eeepc_bluetooth_rfkill->state = |
| 603 | RFKILL_STATE_SOFT_BLOCKED; |
| 604 | rfkill_register(ehotk->eeepc_bluetooth_rfkill); |
| 605 | } |
| 606 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 607 | end: |
| 608 | if (result) { |
| 609 | kfree(ehotk); |
| 610 | ehotk = NULL; |
| 611 | } |
| 612 | return result; |
| 613 | } |
| 614 | |
| 615 | static int eeepc_hotk_remove(struct acpi_device *device, int type) |
| 616 | { |
| 617 | acpi_status status = 0; |
| 618 | |
| 619 | if (!device || !acpi_driver_data(device)) |
| 620 | return -EINVAL; |
| 621 | status = acpi_remove_notify_handler(ehotk->handle, ACPI_SYSTEM_NOTIFY, |
| 622 | eeepc_hotk_notify); |
| 623 | if (ACPI_FAILURE(status)) |
| 624 | printk(EEEPC_ERR "Error removing notify handler\n"); |
| 625 | kfree(ehotk); |
| 626 | return 0; |
| 627 | } |
| 628 | |
| 629 | /* |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 630 | * Hwmon |
| 631 | */ |
| 632 | static int eeepc_get_fan_pwm(void) |
| 633 | { |
| 634 | int value = 0; |
| 635 | |
| 636 | read_acpi_int(NULL, EEEPC_EC_FAN_PWM, &value); |
Corentin Chary | 04dcd84 | 2008-10-09 15:33:57 +0200 | [diff] [blame] | 637 | value = value * 255 / 100; |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 638 | return (value); |
| 639 | } |
| 640 | |
| 641 | static void eeepc_set_fan_pwm(int value) |
| 642 | { |
Corentin Chary | 04dcd84 | 2008-10-09 15:33:57 +0200 | [diff] [blame] | 643 | value = SENSORS_LIMIT(value, 0, 255); |
| 644 | value = value * 100 / 255; |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 645 | ec_write(EEEPC_EC_SC02, value); |
| 646 | } |
| 647 | |
| 648 | static int eeepc_get_fan_rpm(void) |
| 649 | { |
| 650 | int high = 0; |
| 651 | int low = 0; |
| 652 | |
| 653 | read_acpi_int(NULL, EEEPC_EC_FAN_HRPM, &high); |
| 654 | read_acpi_int(NULL, EEEPC_EC_FAN_LRPM, &low); |
| 655 | return (high << 8 | low); |
| 656 | } |
| 657 | |
| 658 | static int eeepc_get_fan_ctrl(void) |
| 659 | { |
| 660 | int value = 0; |
| 661 | |
| 662 | read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value); |
| 663 | return ((value & 0x02 ? 1 : 0)); |
| 664 | } |
| 665 | |
| 666 | static void eeepc_set_fan_ctrl(int manual) |
| 667 | { |
| 668 | int value = 0; |
| 669 | |
| 670 | read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value); |
| 671 | if (manual) |
| 672 | value |= 0x02; |
| 673 | else |
| 674 | value &= ~0x02; |
| 675 | ec_write(EEEPC_EC_SFB3, value); |
| 676 | } |
| 677 | |
| 678 | static ssize_t store_sys_hwmon(void (*set)(int), const char *buf, size_t count) |
| 679 | { |
| 680 | int rv, value; |
| 681 | |
| 682 | rv = parse_arg(buf, count, &value); |
| 683 | if (rv > 0) |
| 684 | set(value); |
| 685 | return rv; |
| 686 | } |
| 687 | |
| 688 | static ssize_t show_sys_hwmon(int (*get)(void), char *buf) |
| 689 | { |
| 690 | return sprintf(buf, "%d\n", get()); |
| 691 | } |
| 692 | |
| 693 | #define EEEPC_CREATE_SENSOR_ATTR(_name, _mode, _set, _get) \ |
| 694 | static ssize_t show_##_name(struct device *dev, \ |
| 695 | struct device_attribute *attr, \ |
| 696 | char *buf) \ |
| 697 | { \ |
| 698 | return show_sys_hwmon(_set, buf); \ |
| 699 | } \ |
| 700 | static ssize_t store_##_name(struct device *dev, \ |
| 701 | struct device_attribute *attr, \ |
| 702 | const char *buf, size_t count) \ |
| 703 | { \ |
| 704 | return store_sys_hwmon(_get, buf, count); \ |
| 705 | } \ |
| 706 | static SENSOR_DEVICE_ATTR(_name, _mode, show_##_name, store_##_name, 0); |
| 707 | |
| 708 | EEEPC_CREATE_SENSOR_ATTR(fan1_input, S_IRUGO, eeepc_get_fan_rpm, NULL); |
Corentin Chary | 04dcd84 | 2008-10-09 15:33:57 +0200 | [diff] [blame] | 709 | EEEPC_CREATE_SENSOR_ATTR(pwm1, S_IRUGO | S_IWUSR, |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 710 | eeepc_get_fan_pwm, eeepc_set_fan_pwm); |
| 711 | EEEPC_CREATE_SENSOR_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, |
| 712 | eeepc_get_fan_ctrl, eeepc_set_fan_ctrl); |
| 713 | |
Corentin Chary | 04dcd84 | 2008-10-09 15:33:57 +0200 | [diff] [blame] | 714 | static ssize_t |
| 715 | show_name(struct device *dev, struct device_attribute *attr, char *buf) |
| 716 | { |
| 717 | return sprintf(buf, "eeepc\n"); |
| 718 | } |
| 719 | static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0); |
| 720 | |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 721 | static struct attribute *hwmon_attributes[] = { |
Corentin Chary | 04dcd84 | 2008-10-09 15:33:57 +0200 | [diff] [blame] | 722 | &sensor_dev_attr_pwm1.dev_attr.attr, |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 723 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
| 724 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
Corentin Chary | 04dcd84 | 2008-10-09 15:33:57 +0200 | [diff] [blame] | 725 | &sensor_dev_attr_name.dev_attr.attr, |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 726 | NULL |
| 727 | }; |
| 728 | |
| 729 | static struct attribute_group hwmon_attribute_group = { |
| 730 | .attrs = hwmon_attributes |
| 731 | }; |
| 732 | |
| 733 | /* |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 734 | * exit/init |
| 735 | */ |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 736 | static void eeepc_backlight_exit(void) |
| 737 | { |
| 738 | if (eeepc_backlight_device) |
| 739 | backlight_device_unregister(eeepc_backlight_device); |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 740 | if (ehotk->inputdev) |
| 741 | input_unregister_device(ehotk->inputdev); |
| 742 | if (ehotk->eeepc_wlan_rfkill) |
| 743 | rfkill_unregister(ehotk->eeepc_wlan_rfkill); |
| 744 | if (ehotk->eeepc_bluetooth_rfkill) |
| 745 | rfkill_unregister(ehotk->eeepc_bluetooth_rfkill); |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 746 | eeepc_backlight_device = NULL; |
| 747 | } |
| 748 | |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 749 | static void eeepc_hwmon_exit(void) |
| 750 | { |
| 751 | struct device *hwmon; |
| 752 | |
| 753 | hwmon = eeepc_hwmon_device; |
| 754 | if (!hwmon) |
| 755 | return ; |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 756 | sysfs_remove_group(&hwmon->kobj, |
| 757 | &hwmon_attribute_group); |
Matthew Garrett | f144131 | 2008-08-20 14:08:57 -0700 | [diff] [blame] | 758 | hwmon_device_unregister(hwmon); |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 759 | eeepc_hwmon_device = NULL; |
| 760 | } |
| 761 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 762 | static void __exit eeepc_laptop_exit(void) |
| 763 | { |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 764 | eeepc_backlight_exit(); |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 765 | eeepc_hwmon_exit(); |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 766 | acpi_bus_unregister_driver(&eeepc_hotk_driver); |
| 767 | sysfs_remove_group(&platform_device->dev.kobj, |
| 768 | &platform_attribute_group); |
| 769 | platform_device_unregister(platform_device); |
| 770 | platform_driver_unregister(&platform_driver); |
| 771 | } |
| 772 | |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 773 | static int eeepc_backlight_init(struct device *dev) |
| 774 | { |
| 775 | struct backlight_device *bd; |
| 776 | |
| 777 | bd = backlight_device_register(EEEPC_HOTK_FILE, dev, |
| 778 | NULL, &eeepcbl_ops); |
| 779 | if (IS_ERR(bd)) { |
| 780 | printk(EEEPC_ERR |
| 781 | "Could not register eeepc backlight device\n"); |
| 782 | eeepc_backlight_device = NULL; |
| 783 | return PTR_ERR(bd); |
| 784 | } |
| 785 | eeepc_backlight_device = bd; |
| 786 | bd->props.max_brightness = 15; |
| 787 | bd->props.brightness = read_brightness(NULL); |
| 788 | bd->props.power = FB_BLANK_UNBLANK; |
| 789 | backlight_update_status(bd); |
| 790 | return 0; |
| 791 | } |
| 792 | |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 793 | static int eeepc_hwmon_init(struct device *dev) |
| 794 | { |
| 795 | struct device *hwmon; |
| 796 | int result; |
| 797 | |
| 798 | hwmon = hwmon_device_register(dev); |
| 799 | if (IS_ERR(hwmon)) { |
| 800 | printk(EEEPC_ERR |
| 801 | "Could not register eeepc hwmon device\n"); |
| 802 | eeepc_hwmon_device = NULL; |
| 803 | return PTR_ERR(hwmon); |
| 804 | } |
| 805 | eeepc_hwmon_device = hwmon; |
| 806 | result = sysfs_create_group(&hwmon->kobj, |
| 807 | &hwmon_attribute_group); |
| 808 | if (result) |
| 809 | eeepc_hwmon_exit(); |
| 810 | return result; |
| 811 | } |
| 812 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 813 | static int __init eeepc_laptop_init(void) |
| 814 | { |
| 815 | struct device *dev; |
| 816 | int result; |
| 817 | |
| 818 | if (acpi_disabled) |
| 819 | return -ENODEV; |
| 820 | result = acpi_bus_register_driver(&eeepc_hotk_driver); |
| 821 | if (result < 0) |
| 822 | return result; |
| 823 | if (!ehotk) { |
| 824 | acpi_bus_unregister_driver(&eeepc_hotk_driver); |
| 825 | return -ENODEV; |
| 826 | } |
| 827 | dev = acpi_get_physical_device(ehotk->device->handle); |
Thomas Renninger | a2bf8c0 | 2008-08-01 17:37:59 +0200 | [diff] [blame] | 828 | |
| 829 | if (!acpi_video_backlight_support()) { |
| 830 | result = eeepc_backlight_init(dev); |
| 831 | if (result) |
| 832 | goto fail_backlight; |
| 833 | } else |
| 834 | printk(EEEPC_INFO "Backlight controlled by ACPI video " |
| 835 | "driver\n"); |
| 836 | |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 837 | result = eeepc_hwmon_init(dev); |
| 838 | if (result) |
| 839 | goto fail_hwmon; |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 840 | /* Register platform stuff */ |
| 841 | result = platform_driver_register(&platform_driver); |
| 842 | if (result) |
| 843 | goto fail_platform_driver; |
| 844 | platform_device = platform_device_alloc(EEEPC_HOTK_FILE, -1); |
| 845 | if (!platform_device) { |
| 846 | result = -ENOMEM; |
| 847 | goto fail_platform_device1; |
| 848 | } |
| 849 | result = platform_device_add(platform_device); |
| 850 | if (result) |
| 851 | goto fail_platform_device2; |
| 852 | result = sysfs_create_group(&platform_device->dev.kobj, |
| 853 | &platform_attribute_group); |
| 854 | if (result) |
| 855 | goto fail_sysfs; |
| 856 | return 0; |
| 857 | fail_sysfs: |
| 858 | platform_device_del(platform_device); |
| 859 | fail_platform_device2: |
| 860 | platform_device_put(platform_device); |
| 861 | fail_platform_device1: |
| 862 | platform_driver_unregister(&platform_driver); |
| 863 | fail_platform_driver: |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 864 | eeepc_hwmon_exit(); |
| 865 | fail_hwmon: |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 866 | eeepc_backlight_exit(); |
| 867 | fail_backlight: |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 868 | return result; |
| 869 | } |
| 870 | |
| 871 | module_init(eeepc_laptop_init); |
| 872 | module_exit(eeepc_laptop_exit); |