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> |
Matthew Garrett | 5740294 | 2009-01-20 16:17:48 +0100 | [diff] [blame] | 33 | #include <linux/pci.h> |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 34 | |
| 35 | #define EEEPC_LAPTOP_VERSION "0.1" |
| 36 | |
| 37 | #define EEEPC_HOTK_NAME "Eee PC Hotkey Driver" |
| 38 | #define EEEPC_HOTK_FILE "eeepc" |
| 39 | #define EEEPC_HOTK_CLASS "hotkey" |
| 40 | #define EEEPC_HOTK_DEVICE_NAME "Hotkey" |
| 41 | #define EEEPC_HOTK_HID "ASUS010" |
| 42 | |
| 43 | #define EEEPC_LOG EEEPC_HOTK_FILE ": " |
| 44 | #define EEEPC_ERR KERN_ERR EEEPC_LOG |
| 45 | #define EEEPC_WARNING KERN_WARNING EEEPC_LOG |
| 46 | #define EEEPC_NOTICE KERN_NOTICE EEEPC_LOG |
| 47 | #define EEEPC_INFO KERN_INFO EEEPC_LOG |
| 48 | |
| 49 | /* |
| 50 | * Definitions for Asus EeePC |
| 51 | */ |
| 52 | #define NOTIFY_WLAN_ON 0x10 |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 53 | #define NOTIFY_BRN_MIN 0x20 |
| 54 | #define NOTIFY_BRN_MAX 0x2f |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 55 | |
| 56 | enum { |
| 57 | DISABLE_ASL_WLAN = 0x0001, |
| 58 | DISABLE_ASL_BLUETOOTH = 0x0002, |
| 59 | DISABLE_ASL_IRDA = 0x0004, |
| 60 | DISABLE_ASL_CAMERA = 0x0008, |
| 61 | DISABLE_ASL_TV = 0x0010, |
| 62 | DISABLE_ASL_GPS = 0x0020, |
| 63 | DISABLE_ASL_DISPLAYSWITCH = 0x0040, |
| 64 | DISABLE_ASL_MODEM = 0x0080, |
| 65 | DISABLE_ASL_CARDREADER = 0x0100 |
| 66 | }; |
| 67 | |
| 68 | enum { |
| 69 | CM_ASL_WLAN = 0, |
| 70 | CM_ASL_BLUETOOTH, |
| 71 | CM_ASL_IRDA, |
| 72 | CM_ASL_1394, |
| 73 | CM_ASL_CAMERA, |
| 74 | CM_ASL_TV, |
| 75 | CM_ASL_GPS, |
| 76 | CM_ASL_DVDROM, |
| 77 | CM_ASL_DISPLAYSWITCH, |
| 78 | CM_ASL_PANELBRIGHT, |
| 79 | CM_ASL_BIOSFLASH, |
| 80 | CM_ASL_ACPIFLASH, |
| 81 | CM_ASL_CPUFV, |
| 82 | CM_ASL_CPUTEMPERATURE, |
| 83 | CM_ASL_FANCPU, |
| 84 | CM_ASL_FANCHASSIS, |
| 85 | CM_ASL_USBPORT1, |
| 86 | CM_ASL_USBPORT2, |
| 87 | CM_ASL_USBPORT3, |
| 88 | CM_ASL_MODEM, |
| 89 | CM_ASL_CARDREADER, |
| 90 | CM_ASL_LID |
| 91 | }; |
| 92 | |
Adrian Bunk | 1410946 | 2008-06-25 19:25:47 +0300 | [diff] [blame] | 93 | static const char *cm_getv[] = { |
Jonathan McDowell | 3af9bfc | 2008-12-03 20:31:11 +0000 | [diff] [blame] | 94 | "WLDG", "BTHG", NULL, NULL, |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 95 | "CAMG", NULL, NULL, NULL, |
| 96 | NULL, "PBLG", NULL, NULL, |
| 97 | "CFVG", NULL, NULL, NULL, |
| 98 | "USBG", NULL, NULL, "MODG", |
| 99 | "CRDG", "LIDG" |
| 100 | }; |
| 101 | |
Adrian Bunk | 1410946 | 2008-06-25 19:25:47 +0300 | [diff] [blame] | 102 | static const char *cm_setv[] = { |
Jonathan McDowell | 3af9bfc | 2008-12-03 20:31:11 +0000 | [diff] [blame] | 103 | "WLDS", "BTHS", NULL, NULL, |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 104 | "CAMS", NULL, NULL, NULL, |
| 105 | "SDSP", "PBLS", "HDPS", NULL, |
| 106 | "CFVS", NULL, NULL, NULL, |
| 107 | "USBG", NULL, NULL, "MODS", |
| 108 | "CRDS", NULL |
| 109 | }; |
| 110 | |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 111 | #define EEEPC_EC "\\_SB.PCI0.SBRG.EC0." |
| 112 | |
| 113 | #define EEEPC_EC_FAN_PWM EEEPC_EC "SC02" /* Fan PWM duty cycle (%) */ |
| 114 | #define EEEPC_EC_SC02 0x63 |
| 115 | #define EEEPC_EC_FAN_HRPM EEEPC_EC "SC05" /* High byte, fan speed (RPM) */ |
| 116 | #define EEEPC_EC_FAN_LRPM EEEPC_EC "SC06" /* Low byte, fan speed (RPM) */ |
| 117 | #define EEEPC_EC_FAN_CTRL EEEPC_EC "SFB3" /* Byte containing SF25 */ |
| 118 | #define EEEPC_EC_SFB3 0xD3 |
| 119 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 120 | /* |
| 121 | * This is the main structure, we can use it to store useful information |
| 122 | * about the hotk device |
| 123 | */ |
| 124 | struct eeepc_hotk { |
| 125 | struct acpi_device *device; /* the device we are in */ |
| 126 | acpi_handle handle; /* the handle of the hotk device */ |
| 127 | u32 cm_supported; /* the control methods supported |
| 128 | by this BIOS */ |
| 129 | uint init_flag; /* Init flags */ |
| 130 | u16 event_count[128]; /* count for each event */ |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 131 | struct input_dev *inputdev; |
| 132 | u16 *keycode_map; |
| 133 | struct rfkill *eeepc_wlan_rfkill; |
| 134 | struct rfkill *eeepc_bluetooth_rfkill; |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 135 | }; |
| 136 | |
| 137 | /* The actual device the driver binds to */ |
| 138 | static struct eeepc_hotk *ehotk; |
| 139 | |
| 140 | /* Platform device/driver */ |
| 141 | static struct platform_driver platform_driver = { |
| 142 | .driver = { |
| 143 | .name = EEEPC_HOTK_FILE, |
| 144 | .owner = THIS_MODULE, |
| 145 | } |
| 146 | }; |
| 147 | |
| 148 | static struct platform_device *platform_device; |
| 149 | |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 150 | struct key_entry { |
| 151 | char type; |
| 152 | u8 code; |
| 153 | u16 keycode; |
| 154 | }; |
| 155 | |
| 156 | enum { KE_KEY, KE_END }; |
| 157 | |
| 158 | static struct key_entry eeepc_keymap[] = { |
| 159 | /* Sleep already handled via generic ACPI code */ |
| 160 | {KE_KEY, 0x10, KEY_WLAN }, |
Alan Jenkins | 978605c | 2009-04-27 09:23:39 +0200 | [diff] [blame] | 161 | {KE_KEY, 0x11, KEY_WLAN }, |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 162 | {KE_KEY, 0x12, KEY_PROG1 }, |
| 163 | {KE_KEY, 0x13, KEY_MUTE }, |
| 164 | {KE_KEY, 0x14, KEY_VOLUMEDOWN }, |
| 165 | {KE_KEY, 0x15, KEY_VOLUMEUP }, |
Matthew Garrett | b5f6f26 | 2009-01-20 16:17:46 +0100 | [diff] [blame] | 166 | {KE_KEY, 0x1a, KEY_COFFEE }, |
| 167 | {KE_KEY, 0x1b, KEY_ZOOM }, |
| 168 | {KE_KEY, 0x1c, KEY_PROG2 }, |
| 169 | {KE_KEY, 0x1d, KEY_PROG3 }, |
Darren Salt | 64b86b6 | 2009-04-27 09:23:38 +0200 | [diff] [blame] | 170 | {KE_KEY, NOTIFY_BRN_MIN, KEY_BRIGHTNESSDOWN }, |
| 171 | {KE_KEY, NOTIFY_BRN_MIN + 2, KEY_BRIGHTNESSUP }, |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 172 | {KE_KEY, 0x30, KEY_SWITCHVIDEOMODE }, |
| 173 | {KE_KEY, 0x31, KEY_SWITCHVIDEOMODE }, |
| 174 | {KE_KEY, 0x32, KEY_SWITCHVIDEOMODE }, |
| 175 | {KE_END, 0}, |
| 176 | }; |
| 177 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 178 | /* |
| 179 | * The hotkey driver declaration |
| 180 | */ |
| 181 | static int eeepc_hotk_add(struct acpi_device *device); |
| 182 | static int eeepc_hotk_remove(struct acpi_device *device, int type); |
| 183 | |
| 184 | static const struct acpi_device_id eeepc_device_ids[] = { |
| 185 | {EEEPC_HOTK_HID, 0}, |
| 186 | {"", 0}, |
| 187 | }; |
| 188 | MODULE_DEVICE_TABLE(acpi, eeepc_device_ids); |
| 189 | |
| 190 | static struct acpi_driver eeepc_hotk_driver = { |
| 191 | .name = EEEPC_HOTK_NAME, |
| 192 | .class = EEEPC_HOTK_CLASS, |
| 193 | .ids = eeepc_device_ids, |
| 194 | .ops = { |
| 195 | .add = eeepc_hotk_add, |
| 196 | .remove = eeepc_hotk_remove, |
| 197 | }, |
| 198 | }; |
| 199 | |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 200 | /* The backlight device /sys/class/backlight */ |
| 201 | static struct backlight_device *eeepc_backlight_device; |
| 202 | |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 203 | /* The hwmon device */ |
| 204 | static struct device *eeepc_hwmon_device; |
| 205 | |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 206 | /* |
| 207 | * The backlight class declaration |
| 208 | */ |
| 209 | static int read_brightness(struct backlight_device *bd); |
| 210 | static int update_bl_status(struct backlight_device *bd); |
| 211 | static struct backlight_ops eeepcbl_ops = { |
| 212 | .get_brightness = read_brightness, |
| 213 | .update_status = update_bl_status, |
| 214 | }; |
| 215 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 216 | MODULE_AUTHOR("Corentin Chary, Eric Cooper"); |
| 217 | MODULE_DESCRIPTION(EEEPC_HOTK_NAME); |
| 218 | MODULE_LICENSE("GPL"); |
| 219 | |
| 220 | /* |
| 221 | * ACPI Helpers |
| 222 | */ |
| 223 | static int write_acpi_int(acpi_handle handle, const char *method, int val, |
| 224 | struct acpi_buffer *output) |
| 225 | { |
| 226 | struct acpi_object_list params; |
| 227 | union acpi_object in_obj; |
| 228 | acpi_status status; |
| 229 | |
| 230 | params.count = 1; |
| 231 | params.pointer = &in_obj; |
| 232 | in_obj.type = ACPI_TYPE_INTEGER; |
| 233 | in_obj.integer.value = val; |
| 234 | |
| 235 | status = acpi_evaluate_object(handle, (char *)method, ¶ms, output); |
| 236 | return (status == AE_OK ? 0 : -1); |
| 237 | } |
| 238 | |
| 239 | static int read_acpi_int(acpi_handle handle, const char *method, int *val) |
| 240 | { |
| 241 | acpi_status status; |
Matthew Wilcox | 27663c5 | 2008-10-10 02:22:59 -0400 | [diff] [blame] | 242 | unsigned long long result; |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 243 | |
| 244 | status = acpi_evaluate_integer(handle, (char *)method, NULL, &result); |
| 245 | if (ACPI_FAILURE(status)) { |
| 246 | *val = -1; |
| 247 | return -1; |
| 248 | } else { |
| 249 | *val = result; |
| 250 | return 0; |
| 251 | } |
| 252 | } |
| 253 | |
| 254 | static int set_acpi(int cm, int value) |
| 255 | { |
| 256 | if (ehotk->cm_supported & (0x1 << cm)) { |
| 257 | const char *method = cm_setv[cm]; |
| 258 | if (method == NULL) |
| 259 | return -ENODEV; |
| 260 | if (write_acpi_int(ehotk->handle, method, value, NULL)) |
| 261 | printk(EEEPC_WARNING "Error writing %s\n", method); |
| 262 | } |
| 263 | return 0; |
| 264 | } |
| 265 | |
| 266 | static int get_acpi(int cm) |
| 267 | { |
| 268 | int value = -1; |
| 269 | if ((ehotk->cm_supported & (0x1 << cm))) { |
| 270 | const char *method = cm_getv[cm]; |
| 271 | if (method == NULL) |
| 272 | return -ENODEV; |
| 273 | if (read_acpi_int(ehotk->handle, method, &value)) |
| 274 | printk(EEEPC_WARNING "Error reading %s\n", method); |
| 275 | } |
| 276 | return value; |
| 277 | } |
| 278 | |
| 279 | /* |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 280 | * Backlight |
| 281 | */ |
| 282 | static int read_brightness(struct backlight_device *bd) |
| 283 | { |
| 284 | return get_acpi(CM_ASL_PANELBRIGHT); |
| 285 | } |
| 286 | |
| 287 | static int set_brightness(struct backlight_device *bd, int value) |
| 288 | { |
| 289 | value = max(0, min(15, value)); |
| 290 | return set_acpi(CM_ASL_PANELBRIGHT, value); |
| 291 | } |
| 292 | |
| 293 | static int update_bl_status(struct backlight_device *bd) |
| 294 | { |
| 295 | return set_brightness(bd, bd->props.brightness); |
| 296 | } |
| 297 | |
| 298 | /* |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 299 | * Rfkill helpers |
| 300 | */ |
| 301 | |
| 302 | static int eeepc_wlan_rfkill_set(void *data, enum rfkill_state state) |
| 303 | { |
| 304 | if (state == RFKILL_STATE_SOFT_BLOCKED) |
| 305 | return set_acpi(CM_ASL_WLAN, 0); |
| 306 | else |
| 307 | return set_acpi(CM_ASL_WLAN, 1); |
| 308 | } |
| 309 | |
| 310 | static int eeepc_wlan_rfkill_state(void *data, enum rfkill_state *state) |
| 311 | { |
| 312 | if (get_acpi(CM_ASL_WLAN) == 1) |
| 313 | *state = RFKILL_STATE_UNBLOCKED; |
| 314 | else |
| 315 | *state = RFKILL_STATE_SOFT_BLOCKED; |
| 316 | return 0; |
| 317 | } |
| 318 | |
| 319 | static int eeepc_bluetooth_rfkill_set(void *data, enum rfkill_state state) |
| 320 | { |
| 321 | if (state == RFKILL_STATE_SOFT_BLOCKED) |
| 322 | return set_acpi(CM_ASL_BLUETOOTH, 0); |
| 323 | else |
| 324 | return set_acpi(CM_ASL_BLUETOOTH, 1); |
| 325 | } |
| 326 | |
| 327 | static int eeepc_bluetooth_rfkill_state(void *data, enum rfkill_state *state) |
| 328 | { |
| 329 | if (get_acpi(CM_ASL_BLUETOOTH) == 1) |
| 330 | *state = RFKILL_STATE_UNBLOCKED; |
| 331 | else |
| 332 | *state = RFKILL_STATE_SOFT_BLOCKED; |
| 333 | return 0; |
| 334 | } |
| 335 | |
| 336 | /* |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 337 | * Sys helpers |
| 338 | */ |
| 339 | static int parse_arg(const char *buf, unsigned long count, int *val) |
| 340 | { |
| 341 | if (!count) |
| 342 | return 0; |
| 343 | if (sscanf(buf, "%i", val) != 1) |
| 344 | return -EINVAL; |
| 345 | return count; |
| 346 | } |
| 347 | |
| 348 | static ssize_t store_sys_acpi(int cm, const char *buf, size_t count) |
| 349 | { |
| 350 | int rv, value; |
| 351 | |
| 352 | rv = parse_arg(buf, count, &value); |
| 353 | if (rv > 0) |
| 354 | set_acpi(cm, value); |
| 355 | return rv; |
| 356 | } |
| 357 | |
| 358 | static ssize_t show_sys_acpi(int cm, char *buf) |
| 359 | { |
| 360 | return sprintf(buf, "%d\n", get_acpi(cm)); |
| 361 | } |
| 362 | |
| 363 | #define EEEPC_CREATE_DEVICE_ATTR(_name, _cm) \ |
| 364 | static ssize_t show_##_name(struct device *dev, \ |
| 365 | struct device_attribute *attr, \ |
| 366 | char *buf) \ |
| 367 | { \ |
| 368 | return show_sys_acpi(_cm, buf); \ |
| 369 | } \ |
| 370 | static ssize_t store_##_name(struct device *dev, \ |
| 371 | struct device_attribute *attr, \ |
| 372 | const char *buf, size_t count) \ |
| 373 | { \ |
| 374 | return store_sys_acpi(_cm, buf, count); \ |
| 375 | } \ |
| 376 | static struct device_attribute dev_attr_##_name = { \ |
| 377 | .attr = { \ |
| 378 | .name = __stringify(_name), \ |
| 379 | .mode = 0644 }, \ |
| 380 | .show = show_##_name, \ |
| 381 | .store = store_##_name, \ |
| 382 | } |
| 383 | |
| 384 | EEEPC_CREATE_DEVICE_ATTR(camera, CM_ASL_CAMERA); |
| 385 | EEEPC_CREATE_DEVICE_ATTR(cardr, CM_ASL_CARDREADER); |
| 386 | EEEPC_CREATE_DEVICE_ATTR(disp, CM_ASL_DISPLAYSWITCH); |
Grigori Goronzy | 158ca1d | 2009-04-27 09:23:40 +0200 | [diff] [blame] | 387 | EEEPC_CREATE_DEVICE_ATTR(cpufv, CM_ASL_CPUFV); |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 388 | |
| 389 | static struct attribute *platform_attributes[] = { |
| 390 | &dev_attr_camera.attr, |
| 391 | &dev_attr_cardr.attr, |
| 392 | &dev_attr_disp.attr, |
Grigori Goronzy | 158ca1d | 2009-04-27 09:23:40 +0200 | [diff] [blame] | 393 | &dev_attr_cpufv.attr, |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 394 | NULL |
| 395 | }; |
| 396 | |
| 397 | static struct attribute_group platform_attribute_group = { |
| 398 | .attrs = platform_attributes |
| 399 | }; |
| 400 | |
| 401 | /* |
| 402 | * Hotkey functions |
| 403 | */ |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 404 | static struct key_entry *eepc_get_entry_by_scancode(int code) |
| 405 | { |
| 406 | struct key_entry *key; |
| 407 | |
| 408 | for (key = eeepc_keymap; key->type != KE_END; key++) |
| 409 | if (code == key->code) |
| 410 | return key; |
| 411 | |
| 412 | return NULL; |
| 413 | } |
| 414 | |
| 415 | static struct key_entry *eepc_get_entry_by_keycode(int code) |
| 416 | { |
| 417 | struct key_entry *key; |
| 418 | |
| 419 | for (key = eeepc_keymap; key->type != KE_END; key++) |
| 420 | if (code == key->keycode && key->type == KE_KEY) |
| 421 | return key; |
| 422 | |
| 423 | return NULL; |
| 424 | } |
| 425 | |
| 426 | static int eeepc_getkeycode(struct input_dev *dev, int scancode, int *keycode) |
| 427 | { |
| 428 | struct key_entry *key = eepc_get_entry_by_scancode(scancode); |
| 429 | |
| 430 | if (key && key->type == KE_KEY) { |
| 431 | *keycode = key->keycode; |
| 432 | return 0; |
| 433 | } |
| 434 | |
| 435 | return -EINVAL; |
| 436 | } |
| 437 | |
| 438 | static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode) |
| 439 | { |
| 440 | struct key_entry *key; |
| 441 | int old_keycode; |
| 442 | |
| 443 | if (keycode < 0 || keycode > KEY_MAX) |
| 444 | return -EINVAL; |
| 445 | |
| 446 | key = eepc_get_entry_by_scancode(scancode); |
| 447 | if (key && key->type == KE_KEY) { |
| 448 | old_keycode = key->keycode; |
| 449 | key->keycode = keycode; |
| 450 | set_bit(keycode, dev->keybit); |
| 451 | if (!eepc_get_entry_by_keycode(old_keycode)) |
| 452 | clear_bit(old_keycode, dev->keybit); |
| 453 | return 0; |
| 454 | } |
| 455 | |
| 456 | return -EINVAL; |
| 457 | } |
| 458 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 459 | static int eeepc_hotk_check(void) |
| 460 | { |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 461 | const struct key_entry *key; |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 462 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 463 | int result; |
| 464 | |
| 465 | result = acpi_bus_get_status(ehotk->device); |
| 466 | if (result) |
| 467 | return result; |
| 468 | if (ehotk->device->status.present) { |
| 469 | if (write_acpi_int(ehotk->handle, "INIT", ehotk->init_flag, |
| 470 | &buffer)) { |
| 471 | printk(EEEPC_ERR "Hotkey initialization failed\n"); |
| 472 | return -ENODEV; |
| 473 | } else { |
| 474 | printk(EEEPC_NOTICE "Hotkey init flags 0x%x\n", |
| 475 | ehotk->init_flag); |
| 476 | } |
| 477 | /* get control methods supported */ |
| 478 | if (read_acpi_int(ehotk->handle, "CMSG" |
| 479 | , &ehotk->cm_supported)) { |
| 480 | printk(EEEPC_ERR |
| 481 | "Get control methods supported failed\n"); |
| 482 | return -ENODEV; |
| 483 | } else { |
| 484 | printk(EEEPC_INFO |
| 485 | "Get control methods supported: 0x%x\n", |
| 486 | ehotk->cm_supported); |
| 487 | } |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 488 | ehotk->inputdev = input_allocate_device(); |
| 489 | if (!ehotk->inputdev) { |
| 490 | printk(EEEPC_INFO "Unable to allocate input device\n"); |
| 491 | return 0; |
| 492 | } |
| 493 | ehotk->inputdev->name = "Asus EeePC extra buttons"; |
| 494 | ehotk->inputdev->phys = EEEPC_HOTK_FILE "/input0"; |
| 495 | ehotk->inputdev->id.bustype = BUS_HOST; |
| 496 | ehotk->inputdev->getkeycode = eeepc_getkeycode; |
| 497 | ehotk->inputdev->setkeycode = eeepc_setkeycode; |
| 498 | |
| 499 | for (key = eeepc_keymap; key->type != KE_END; key++) { |
| 500 | switch (key->type) { |
| 501 | case KE_KEY: |
| 502 | set_bit(EV_KEY, ehotk->inputdev->evbit); |
| 503 | set_bit(key->keycode, ehotk->inputdev->keybit); |
| 504 | break; |
| 505 | } |
| 506 | } |
| 507 | result = input_register_device(ehotk->inputdev); |
| 508 | if (result) { |
| 509 | printk(EEEPC_INFO "Unable to register input device\n"); |
| 510 | input_free_device(ehotk->inputdev); |
| 511 | return 0; |
| 512 | } |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 513 | } else { |
| 514 | printk(EEEPC_ERR "Hotkey device not present, aborting\n"); |
| 515 | return -EINVAL; |
| 516 | } |
| 517 | return 0; |
| 518 | } |
| 519 | |
Darren Salt | 64b86b6 | 2009-04-27 09:23:38 +0200 | [diff] [blame] | 520 | static int notify_brn(void) |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 521 | { |
Darren Salt | 64b86b6 | 2009-04-27 09:23:38 +0200 | [diff] [blame] | 522 | /* returns the *previous* brightness, or -1 */ |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 523 | struct backlight_device *bd = eeepc_backlight_device; |
Darren Salt | 64b86b6 | 2009-04-27 09:23:38 +0200 | [diff] [blame] | 524 | if (bd) { |
| 525 | int old = bd->props.brightness; |
Darren Salt | 7695fb0 | 2009-02-07 01:02:07 -0500 | [diff] [blame] | 526 | bd->props.brightness = read_brightness(bd); |
Darren Salt | 64b86b6 | 2009-04-27 09:23:38 +0200 | [diff] [blame] | 527 | return old; |
| 528 | } |
| 529 | return -1; |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 530 | } |
| 531 | |
Matthew Garrett | 5740294 | 2009-01-20 16:17:48 +0100 | [diff] [blame] | 532 | static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) |
| 533 | { |
Alan Jenkins | 978605c | 2009-04-27 09:23:39 +0200 | [diff] [blame] | 534 | enum rfkill_state state; |
Matthew Garrett | 5740294 | 2009-01-20 16:17:48 +0100 | [diff] [blame] | 535 | struct pci_dev *dev; |
| 536 | struct pci_bus *bus = pci_find_bus(0, 1); |
| 537 | |
| 538 | if (event != ACPI_NOTIFY_BUS_CHECK) |
| 539 | return; |
| 540 | |
| 541 | if (!bus) { |
| 542 | printk(EEEPC_WARNING "Unable to find PCI bus 1?\n"); |
| 543 | return; |
| 544 | } |
| 545 | |
Alan Jenkins | 978605c | 2009-04-27 09:23:39 +0200 | [diff] [blame] | 546 | eeepc_wlan_rfkill_state(ehotk->eeepc_wlan_rfkill, &state); |
| 547 | |
| 548 | if (state == RFKILL_STATE_UNBLOCKED) { |
Matthew Garrett | 5740294 | 2009-01-20 16:17:48 +0100 | [diff] [blame] | 549 | dev = pci_get_slot(bus, 0); |
| 550 | if (dev) { |
| 551 | /* Device already present */ |
| 552 | pci_dev_put(dev); |
| 553 | return; |
| 554 | } |
| 555 | dev = pci_scan_single_device(bus, 0); |
| 556 | if (dev) { |
| 557 | pci_bus_assign_resources(bus); |
| 558 | if (pci_bus_add_device(dev)) |
| 559 | printk(EEEPC_ERR "Unable to hotplug wifi\n"); |
| 560 | } |
| 561 | } else { |
| 562 | dev = pci_get_slot(bus, 0); |
| 563 | if (dev) { |
| 564 | pci_remove_bus_device(dev); |
| 565 | pci_dev_put(dev); |
| 566 | } |
| 567 | } |
Alan Jenkins | 978605c | 2009-04-27 09:23:39 +0200 | [diff] [blame] | 568 | |
| 569 | rfkill_force_state(ehotk->eeepc_wlan_rfkill, state); |
Matthew Garrett | 5740294 | 2009-01-20 16:17:48 +0100 | [diff] [blame] | 570 | } |
| 571 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 572 | static void eeepc_hotk_notify(acpi_handle handle, u32 event, void *data) |
| 573 | { |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 574 | static struct key_entry *key; |
Corentin Chary | 7950b71 | 2009-02-15 19:30:20 +0100 | [diff] [blame] | 575 | u16 count; |
Darren Salt | 64b86b6 | 2009-04-27 09:23:38 +0200 | [diff] [blame] | 576 | int brn = -ENODEV; |
Corentin Chary | 7950b71 | 2009-02-15 19:30:20 +0100 | [diff] [blame] | 577 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 578 | if (!ehotk) |
| 579 | return; |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 580 | if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX) |
Darren Salt | 64b86b6 | 2009-04-27 09:23:38 +0200 | [diff] [blame] | 581 | brn = notify_brn(); |
Corentin Chary | 7950b71 | 2009-02-15 19:30:20 +0100 | [diff] [blame] | 582 | count = ehotk->event_count[event % 128]++; |
| 583 | acpi_bus_generate_proc_event(ehotk->device, event, count); |
Corentin Chary | 2b25c9f | 2009-01-20 16:17:49 +0100 | [diff] [blame] | 584 | acpi_bus_generate_netlink_event(ehotk->device->pnp.device_class, |
| 585 | dev_name(&ehotk->device->dev), event, |
Corentin Chary | 7950b71 | 2009-02-15 19:30:20 +0100 | [diff] [blame] | 586 | count); |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 587 | if (ehotk->inputdev) { |
Darren Salt | 64b86b6 | 2009-04-27 09:23:38 +0200 | [diff] [blame] | 588 | if (brn != -ENODEV) { |
| 589 | /* brightness-change events need special |
| 590 | * handling for conversion to key events |
| 591 | */ |
| 592 | if (brn < 0) |
| 593 | brn = event; |
| 594 | else |
| 595 | brn += NOTIFY_BRN_MIN; |
| 596 | if (event < brn) |
| 597 | event = NOTIFY_BRN_MIN; /* brightness down */ |
| 598 | else if (event > brn) |
| 599 | event = NOTIFY_BRN_MIN + 2; /* ... up */ |
| 600 | else |
| 601 | event = NOTIFY_BRN_MIN + 1; /* ... unchanged */ |
| 602 | } |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 603 | key = eepc_get_entry_by_scancode(event); |
| 604 | if (key) { |
| 605 | switch (key->type) { |
| 606 | case KE_KEY: |
| 607 | input_report_key(ehotk->inputdev, key->keycode, |
| 608 | 1); |
| 609 | input_sync(ehotk->inputdev); |
| 610 | input_report_key(ehotk->inputdev, key->keycode, |
| 611 | 0); |
| 612 | input_sync(ehotk->inputdev); |
| 613 | break; |
| 614 | } |
| 615 | } |
| 616 | } |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 617 | } |
| 618 | |
Matthew Garrett | 5740294 | 2009-01-20 16:17:48 +0100 | [diff] [blame] | 619 | static int eeepc_register_rfkill_notifier(char *node) |
| 620 | { |
| 621 | acpi_status status = AE_OK; |
| 622 | acpi_handle handle; |
| 623 | |
| 624 | status = acpi_get_handle(NULL, node, &handle); |
| 625 | |
| 626 | if (ACPI_SUCCESS(status)) { |
| 627 | status = acpi_install_notify_handler(handle, |
| 628 | ACPI_SYSTEM_NOTIFY, |
| 629 | eeepc_rfkill_notify, |
| 630 | NULL); |
| 631 | if (ACPI_FAILURE(status)) |
| 632 | printk(EEEPC_WARNING |
| 633 | "Failed to register notify on %s\n", node); |
| 634 | } else |
| 635 | return -ENODEV; |
| 636 | |
| 637 | return 0; |
| 638 | } |
| 639 | |
| 640 | static void eeepc_unregister_rfkill_notifier(char *node) |
| 641 | { |
| 642 | acpi_status status = AE_OK; |
| 643 | acpi_handle handle; |
| 644 | |
| 645 | status = acpi_get_handle(NULL, node, &handle); |
| 646 | |
| 647 | if (ACPI_SUCCESS(status)) { |
| 648 | status = acpi_remove_notify_handler(handle, |
| 649 | ACPI_SYSTEM_NOTIFY, |
| 650 | eeepc_rfkill_notify); |
| 651 | if (ACPI_FAILURE(status)) |
| 652 | printk(EEEPC_ERR |
| 653 | "Error removing rfkill notify handler %s\n", |
| 654 | node); |
| 655 | } |
| 656 | } |
| 657 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 658 | static int eeepc_hotk_add(struct acpi_device *device) |
| 659 | { |
| 660 | acpi_status status = AE_OK; |
| 661 | int result; |
| 662 | |
| 663 | if (!device) |
| 664 | return -EINVAL; |
| 665 | printk(EEEPC_NOTICE EEEPC_HOTK_NAME "\n"); |
| 666 | ehotk = kzalloc(sizeof(struct eeepc_hotk), GFP_KERNEL); |
| 667 | if (!ehotk) |
| 668 | return -ENOMEM; |
| 669 | ehotk->init_flag = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH; |
| 670 | ehotk->handle = device->handle; |
| 671 | strcpy(acpi_device_name(device), EEEPC_HOTK_DEVICE_NAME); |
| 672 | strcpy(acpi_device_class(device), EEEPC_HOTK_CLASS); |
Pavel Machek | db89b4f | 2008-09-22 14:37:34 -0700 | [diff] [blame] | 673 | device->driver_data = ehotk; |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 674 | ehotk->device = device; |
| 675 | result = eeepc_hotk_check(); |
| 676 | if (result) |
Matthew Garrett | c9ddf8f | 2009-01-20 16:17:47 +0100 | [diff] [blame] | 677 | goto ehotk_fail; |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 678 | status = acpi_install_notify_handler(ehotk->handle, ACPI_SYSTEM_NOTIFY, |
| 679 | eeepc_hotk_notify, ehotk); |
| 680 | if (ACPI_FAILURE(status)) |
| 681 | printk(EEEPC_ERR "Error installing notify handler\n"); |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 682 | |
Alan Jenkins | fbc97e4 | 2009-04-27 09:23:37 +0200 | [diff] [blame] | 683 | eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6"); |
| 684 | eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7"); |
| 685 | |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 686 | if (get_acpi(CM_ASL_WLAN) != -1) { |
| 687 | ehotk->eeepc_wlan_rfkill = rfkill_allocate(&device->dev, |
| 688 | RFKILL_TYPE_WLAN); |
| 689 | |
| 690 | if (!ehotk->eeepc_wlan_rfkill) |
Matthew Garrett | c9ddf8f | 2009-01-20 16:17:47 +0100 | [diff] [blame] | 691 | goto wlan_fail; |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 692 | |
| 693 | ehotk->eeepc_wlan_rfkill->name = "eeepc-wlan"; |
| 694 | ehotk->eeepc_wlan_rfkill->toggle_radio = eeepc_wlan_rfkill_set; |
| 695 | ehotk->eeepc_wlan_rfkill->get_state = eeepc_wlan_rfkill_state; |
Matthew Garrett | c9ddf8f | 2009-01-20 16:17:47 +0100 | [diff] [blame] | 696 | if (get_acpi(CM_ASL_WLAN) == 1) { |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 697 | ehotk->eeepc_wlan_rfkill->state = |
| 698 | RFKILL_STATE_UNBLOCKED; |
Matthew Garrett | c9ddf8f | 2009-01-20 16:17:47 +0100 | [diff] [blame] | 699 | rfkill_set_default(RFKILL_TYPE_WLAN, |
| 700 | RFKILL_STATE_UNBLOCKED); |
| 701 | } else { |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 702 | ehotk->eeepc_wlan_rfkill->state = |
| 703 | RFKILL_STATE_SOFT_BLOCKED; |
Matthew Garrett | c9ddf8f | 2009-01-20 16:17:47 +0100 | [diff] [blame] | 704 | rfkill_set_default(RFKILL_TYPE_WLAN, |
| 705 | RFKILL_STATE_SOFT_BLOCKED); |
| 706 | } |
| 707 | result = rfkill_register(ehotk->eeepc_wlan_rfkill); |
| 708 | if (result) |
| 709 | goto wlan_fail; |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 710 | } |
| 711 | |
| 712 | if (get_acpi(CM_ASL_BLUETOOTH) != -1) { |
| 713 | ehotk->eeepc_bluetooth_rfkill = |
| 714 | rfkill_allocate(&device->dev, RFKILL_TYPE_BLUETOOTH); |
| 715 | |
| 716 | if (!ehotk->eeepc_bluetooth_rfkill) |
Matthew Garrett | c9ddf8f | 2009-01-20 16:17:47 +0100 | [diff] [blame] | 717 | goto bluetooth_fail; |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 718 | |
| 719 | ehotk->eeepc_bluetooth_rfkill->name = "eeepc-bluetooth"; |
| 720 | ehotk->eeepc_bluetooth_rfkill->toggle_radio = |
| 721 | eeepc_bluetooth_rfkill_set; |
| 722 | ehotk->eeepc_bluetooth_rfkill->get_state = |
| 723 | eeepc_bluetooth_rfkill_state; |
Matthew Garrett | c9ddf8f | 2009-01-20 16:17:47 +0100 | [diff] [blame] | 724 | if (get_acpi(CM_ASL_BLUETOOTH) == 1) { |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 725 | ehotk->eeepc_bluetooth_rfkill->state = |
| 726 | RFKILL_STATE_UNBLOCKED; |
Matthew Garrett | c9ddf8f | 2009-01-20 16:17:47 +0100 | [diff] [blame] | 727 | rfkill_set_default(RFKILL_TYPE_BLUETOOTH, |
| 728 | RFKILL_STATE_UNBLOCKED); |
| 729 | } else { |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 730 | ehotk->eeepc_bluetooth_rfkill->state = |
| 731 | RFKILL_STATE_SOFT_BLOCKED; |
Matthew Garrett | c9ddf8f | 2009-01-20 16:17:47 +0100 | [diff] [blame] | 732 | rfkill_set_default(RFKILL_TYPE_BLUETOOTH, |
| 733 | RFKILL_STATE_SOFT_BLOCKED); |
| 734 | } |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 735 | |
Matthew Garrett | c9ddf8f | 2009-01-20 16:17:47 +0100 | [diff] [blame] | 736 | result = rfkill_register(ehotk->eeepc_bluetooth_rfkill); |
| 737 | if (result) |
| 738 | goto bluetooth_fail; |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 739 | } |
Matthew Garrett | 5740294 | 2009-01-20 16:17:48 +0100 | [diff] [blame] | 740 | |
Matthew Garrett | c9ddf8f | 2009-01-20 16:17:47 +0100 | [diff] [blame] | 741 | return 0; |
| 742 | |
| 743 | bluetooth_fail: |
| 744 | if (ehotk->eeepc_bluetooth_rfkill) |
| 745 | rfkill_free(ehotk->eeepc_bluetooth_rfkill); |
| 746 | rfkill_unregister(ehotk->eeepc_wlan_rfkill); |
| 747 | ehotk->eeepc_wlan_rfkill = NULL; |
| 748 | wlan_fail: |
| 749 | if (ehotk->eeepc_wlan_rfkill) |
| 750 | rfkill_free(ehotk->eeepc_wlan_rfkill); |
Corentin Chary | bd32005 | 2009-04-27 09:23:43 +0200 | [diff] [blame] | 751 | eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6"); |
| 752 | eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7"); |
Matthew Garrett | c9ddf8f | 2009-01-20 16:17:47 +0100 | [diff] [blame] | 753 | ehotk_fail: |
| 754 | kfree(ehotk); |
| 755 | ehotk = NULL; |
| 756 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 757 | return result; |
| 758 | } |
| 759 | |
| 760 | static int eeepc_hotk_remove(struct acpi_device *device, int type) |
| 761 | { |
| 762 | acpi_status status = 0; |
| 763 | |
| 764 | if (!device || !acpi_driver_data(device)) |
| 765 | return -EINVAL; |
| 766 | status = acpi_remove_notify_handler(ehotk->handle, ACPI_SYSTEM_NOTIFY, |
| 767 | eeepc_hotk_notify); |
| 768 | if (ACPI_FAILURE(status)) |
| 769 | printk(EEEPC_ERR "Error removing notify handler\n"); |
Matthew Garrett | 5740294 | 2009-01-20 16:17:48 +0100 | [diff] [blame] | 770 | |
| 771 | eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6"); |
| 772 | eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7"); |
| 773 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 774 | kfree(ehotk); |
| 775 | return 0; |
| 776 | } |
| 777 | |
| 778 | /* |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 779 | * Hwmon |
| 780 | */ |
| 781 | static int eeepc_get_fan_pwm(void) |
| 782 | { |
| 783 | int value = 0; |
| 784 | |
| 785 | read_acpi_int(NULL, EEEPC_EC_FAN_PWM, &value); |
Corentin Chary | 04dcd84 | 2008-10-09 15:33:57 +0200 | [diff] [blame] | 786 | value = value * 255 / 100; |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 787 | return (value); |
| 788 | } |
| 789 | |
| 790 | static void eeepc_set_fan_pwm(int value) |
| 791 | { |
Corentin Chary | 04dcd84 | 2008-10-09 15:33:57 +0200 | [diff] [blame] | 792 | value = SENSORS_LIMIT(value, 0, 255); |
| 793 | value = value * 100 / 255; |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 794 | ec_write(EEEPC_EC_SC02, value); |
| 795 | } |
| 796 | |
| 797 | static int eeepc_get_fan_rpm(void) |
| 798 | { |
| 799 | int high = 0; |
| 800 | int low = 0; |
| 801 | |
| 802 | read_acpi_int(NULL, EEEPC_EC_FAN_HRPM, &high); |
| 803 | read_acpi_int(NULL, EEEPC_EC_FAN_LRPM, &low); |
| 804 | return (high << 8 | low); |
| 805 | } |
| 806 | |
| 807 | static int eeepc_get_fan_ctrl(void) |
| 808 | { |
| 809 | int value = 0; |
| 810 | |
| 811 | read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value); |
| 812 | return ((value & 0x02 ? 1 : 0)); |
| 813 | } |
| 814 | |
| 815 | static void eeepc_set_fan_ctrl(int manual) |
| 816 | { |
| 817 | int value = 0; |
| 818 | |
| 819 | read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value); |
| 820 | if (manual) |
| 821 | value |= 0x02; |
| 822 | else |
| 823 | value &= ~0x02; |
| 824 | ec_write(EEEPC_EC_SFB3, value); |
| 825 | } |
| 826 | |
| 827 | static ssize_t store_sys_hwmon(void (*set)(int), const char *buf, size_t count) |
| 828 | { |
| 829 | int rv, value; |
| 830 | |
| 831 | rv = parse_arg(buf, count, &value); |
| 832 | if (rv > 0) |
| 833 | set(value); |
| 834 | return rv; |
| 835 | } |
| 836 | |
| 837 | static ssize_t show_sys_hwmon(int (*get)(void), char *buf) |
| 838 | { |
| 839 | return sprintf(buf, "%d\n", get()); |
| 840 | } |
| 841 | |
| 842 | #define EEEPC_CREATE_SENSOR_ATTR(_name, _mode, _set, _get) \ |
| 843 | static ssize_t show_##_name(struct device *dev, \ |
| 844 | struct device_attribute *attr, \ |
| 845 | char *buf) \ |
| 846 | { \ |
| 847 | return show_sys_hwmon(_set, buf); \ |
| 848 | } \ |
| 849 | static ssize_t store_##_name(struct device *dev, \ |
| 850 | struct device_attribute *attr, \ |
| 851 | const char *buf, size_t count) \ |
| 852 | { \ |
| 853 | return store_sys_hwmon(_get, buf, count); \ |
| 854 | } \ |
| 855 | static SENSOR_DEVICE_ATTR(_name, _mode, show_##_name, store_##_name, 0); |
| 856 | |
| 857 | 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] | 858 | EEEPC_CREATE_SENSOR_ATTR(pwm1, S_IRUGO | S_IWUSR, |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 859 | eeepc_get_fan_pwm, eeepc_set_fan_pwm); |
| 860 | EEEPC_CREATE_SENSOR_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, |
| 861 | eeepc_get_fan_ctrl, eeepc_set_fan_ctrl); |
| 862 | |
Corentin Chary | 04dcd84 | 2008-10-09 15:33:57 +0200 | [diff] [blame] | 863 | static ssize_t |
| 864 | show_name(struct device *dev, struct device_attribute *attr, char *buf) |
| 865 | { |
| 866 | return sprintf(buf, "eeepc\n"); |
| 867 | } |
| 868 | static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0); |
| 869 | |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 870 | static struct attribute *hwmon_attributes[] = { |
Corentin Chary | 04dcd84 | 2008-10-09 15:33:57 +0200 | [diff] [blame] | 871 | &sensor_dev_attr_pwm1.dev_attr.attr, |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 872 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
| 873 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
Corentin Chary | 04dcd84 | 2008-10-09 15:33:57 +0200 | [diff] [blame] | 874 | &sensor_dev_attr_name.dev_attr.attr, |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 875 | NULL |
| 876 | }; |
| 877 | |
| 878 | static struct attribute_group hwmon_attribute_group = { |
| 879 | .attrs = hwmon_attributes |
| 880 | }; |
| 881 | |
| 882 | /* |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 883 | * exit/init |
| 884 | */ |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 885 | static void eeepc_backlight_exit(void) |
| 886 | { |
| 887 | if (eeepc_backlight_device) |
| 888 | backlight_device_unregister(eeepc_backlight_device); |
Corentin Chary | a9df80c | 2009-01-20 16:17:40 +0100 | [diff] [blame] | 889 | eeepc_backlight_device = NULL; |
| 890 | } |
| 891 | |
| 892 | static void eeepc_rfkill_exit(void) |
| 893 | { |
Matthew Garrett | a195dcd | 2008-08-19 12:13:20 +0100 | [diff] [blame] | 894 | if (ehotk->eeepc_wlan_rfkill) |
| 895 | rfkill_unregister(ehotk->eeepc_wlan_rfkill); |
| 896 | if (ehotk->eeepc_bluetooth_rfkill) |
| 897 | rfkill_unregister(ehotk->eeepc_bluetooth_rfkill); |
Corentin Chary | a9df80c | 2009-01-20 16:17:40 +0100 | [diff] [blame] | 898 | } |
| 899 | |
| 900 | static void eeepc_input_exit(void) |
| 901 | { |
| 902 | if (ehotk->inputdev) |
| 903 | input_unregister_device(ehotk->inputdev); |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 904 | } |
| 905 | |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 906 | static void eeepc_hwmon_exit(void) |
| 907 | { |
| 908 | struct device *hwmon; |
| 909 | |
| 910 | hwmon = eeepc_hwmon_device; |
| 911 | if (!hwmon) |
| 912 | return ; |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 913 | sysfs_remove_group(&hwmon->kobj, |
| 914 | &hwmon_attribute_group); |
Matthew Garrett | f144131 | 2008-08-20 14:08:57 -0700 | [diff] [blame] | 915 | hwmon_device_unregister(hwmon); |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 916 | eeepc_hwmon_device = NULL; |
| 917 | } |
| 918 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 919 | static void __exit eeepc_laptop_exit(void) |
| 920 | { |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 921 | eeepc_backlight_exit(); |
Corentin Chary | a9df80c | 2009-01-20 16:17:40 +0100 | [diff] [blame] | 922 | eeepc_rfkill_exit(); |
| 923 | eeepc_input_exit(); |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 924 | eeepc_hwmon_exit(); |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 925 | acpi_bus_unregister_driver(&eeepc_hotk_driver); |
| 926 | sysfs_remove_group(&platform_device->dev.kobj, |
| 927 | &platform_attribute_group); |
| 928 | platform_device_unregister(platform_device); |
| 929 | platform_driver_unregister(&platform_driver); |
| 930 | } |
| 931 | |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 932 | static int eeepc_backlight_init(struct device *dev) |
| 933 | { |
| 934 | struct backlight_device *bd; |
| 935 | |
| 936 | bd = backlight_device_register(EEEPC_HOTK_FILE, dev, |
| 937 | NULL, &eeepcbl_ops); |
| 938 | if (IS_ERR(bd)) { |
| 939 | printk(EEEPC_ERR |
| 940 | "Could not register eeepc backlight device\n"); |
| 941 | eeepc_backlight_device = NULL; |
| 942 | return PTR_ERR(bd); |
| 943 | } |
| 944 | eeepc_backlight_device = bd; |
| 945 | bd->props.max_brightness = 15; |
| 946 | bd->props.brightness = read_brightness(NULL); |
| 947 | bd->props.power = FB_BLANK_UNBLANK; |
| 948 | backlight_update_status(bd); |
| 949 | return 0; |
| 950 | } |
| 951 | |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 952 | static int eeepc_hwmon_init(struct device *dev) |
| 953 | { |
| 954 | struct device *hwmon; |
| 955 | int result; |
| 956 | |
| 957 | hwmon = hwmon_device_register(dev); |
| 958 | if (IS_ERR(hwmon)) { |
| 959 | printk(EEEPC_ERR |
| 960 | "Could not register eeepc hwmon device\n"); |
| 961 | eeepc_hwmon_device = NULL; |
| 962 | return PTR_ERR(hwmon); |
| 963 | } |
| 964 | eeepc_hwmon_device = hwmon; |
| 965 | result = sysfs_create_group(&hwmon->kobj, |
| 966 | &hwmon_attribute_group); |
| 967 | if (result) |
| 968 | eeepc_hwmon_exit(); |
| 969 | return result; |
| 970 | } |
| 971 | |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 972 | static int __init eeepc_laptop_init(void) |
| 973 | { |
| 974 | struct device *dev; |
| 975 | int result; |
| 976 | |
| 977 | if (acpi_disabled) |
| 978 | return -ENODEV; |
| 979 | result = acpi_bus_register_driver(&eeepc_hotk_driver); |
| 980 | if (result < 0) |
| 981 | return result; |
| 982 | if (!ehotk) { |
| 983 | acpi_bus_unregister_driver(&eeepc_hotk_driver); |
| 984 | return -ENODEV; |
| 985 | } |
| 986 | dev = acpi_get_physical_device(ehotk->device->handle); |
Thomas Renninger | a2bf8c0 | 2008-08-01 17:37:59 +0200 | [diff] [blame] | 987 | |
| 988 | if (!acpi_video_backlight_support()) { |
| 989 | result = eeepc_backlight_init(dev); |
| 990 | if (result) |
| 991 | goto fail_backlight; |
| 992 | } else |
| 993 | printk(EEEPC_INFO "Backlight controlled by ACPI video " |
| 994 | "driver\n"); |
| 995 | |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 996 | result = eeepc_hwmon_init(dev); |
| 997 | if (result) |
| 998 | goto fail_hwmon; |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 999 | /* Register platform stuff */ |
| 1000 | result = platform_driver_register(&platform_driver); |
| 1001 | if (result) |
| 1002 | goto fail_platform_driver; |
| 1003 | platform_device = platform_device_alloc(EEEPC_HOTK_FILE, -1); |
| 1004 | if (!platform_device) { |
| 1005 | result = -ENOMEM; |
| 1006 | goto fail_platform_device1; |
| 1007 | } |
| 1008 | result = platform_device_add(platform_device); |
| 1009 | if (result) |
| 1010 | goto fail_platform_device2; |
| 1011 | result = sysfs_create_group(&platform_device->dev.kobj, |
| 1012 | &platform_attribute_group); |
| 1013 | if (result) |
| 1014 | goto fail_sysfs; |
| 1015 | return 0; |
| 1016 | fail_sysfs: |
| 1017 | platform_device_del(platform_device); |
| 1018 | fail_platform_device2: |
| 1019 | platform_device_put(platform_device); |
| 1020 | fail_platform_device1: |
| 1021 | platform_driver_unregister(&platform_driver); |
| 1022 | fail_platform_driver: |
Corentin Chary | e1faa9d | 2008-03-13 12:57:18 +0100 | [diff] [blame] | 1023 | eeepc_hwmon_exit(); |
| 1024 | fail_hwmon: |
Corentin Chary | a5fa429 | 2008-03-13 12:56:37 +0100 | [diff] [blame] | 1025 | eeepc_backlight_exit(); |
| 1026 | fail_backlight: |
Corentin Chary | a9df80c | 2009-01-20 16:17:40 +0100 | [diff] [blame] | 1027 | eeepc_input_exit(); |
| 1028 | eeepc_rfkill_exit(); |
Eric Cooper | e59f879 | 2008-03-13 12:55:46 +0100 | [diff] [blame] | 1029 | return result; |
| 1030 | } |
| 1031 | |
| 1032 | module_init(eeepc_laptop_init); |
| 1033 | module_exit(eeepc_laptop_exit); |