Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 1 | /*-*-linux-c-*-*/ |
| 2 | |
| 3 | /* |
| 4 | Copyright (C) 2008 Cezary Jackiewicz <cezary.jackiewicz (at) gmail.com> |
| 5 | |
| 6 | based on MSI driver |
| 7 | |
| 8 | Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) de> |
| 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, but |
| 16 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 18 | 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., 51 Franklin Street, Fifth Floor, Boston, MA |
| 23 | 02110-1301, USA. |
| 24 | */ |
| 25 | |
| 26 | /* |
| 27 | * comapl-laptop.c - Compal laptop support. |
| 28 | * |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 29 | * The driver registers itself with the rfkill subsystem and |
| 30 | * the Linux backlight control subsystem. |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 31 | * |
| 32 | * This driver might work on other laptops produced by Compal. If you |
| 33 | * want to try it you can pass force=1 as argument to the module which |
| 34 | * will force it to load even when the DMI data doesn't identify the |
Cezary Jackiewicz | 87dc5e3 | 2008-06-12 22:08:59 +0200 | [diff] [blame] | 35 | * laptop as FL9x. |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 36 | */ |
| 37 | |
| 38 | #include <linux/module.h> |
| 39 | #include <linux/kernel.h> |
| 40 | #include <linux/init.h> |
| 41 | #include <linux/acpi.h> |
| 42 | #include <linux/dmi.h> |
| 43 | #include <linux/backlight.h> |
| 44 | #include <linux/platform_device.h> |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 45 | #include <linux/rfkill.h> |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 46 | |
Cezary Jackiewicz | 87dc5e3 | 2008-06-12 22:08:59 +0200 | [diff] [blame] | 47 | #define COMPAL_DRIVER_VERSION "0.2.6" |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 48 | |
| 49 | #define COMPAL_LCD_LEVEL_MAX 8 |
| 50 | |
| 51 | #define COMPAL_EC_COMMAND_WIRELESS 0xBB |
| 52 | #define COMPAL_EC_COMMAND_LCD_LEVEL 0xB9 |
| 53 | |
| 54 | #define KILLSWITCH_MASK 0x10 |
| 55 | #define WLAN_MASK 0x01 |
| 56 | #define BT_MASK 0x02 |
| 57 | |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 58 | static struct rfkill *wifi_rfkill; |
| 59 | static struct rfkill *bt_rfkill; |
| 60 | static struct platform_device *compal_device; |
| 61 | |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 62 | static int force; |
| 63 | module_param(force, bool, 0); |
| 64 | MODULE_PARM_DESC(force, "Force driver load, ignore DMI data"); |
| 65 | |
| 66 | /* Hardware access */ |
| 67 | |
| 68 | static int set_lcd_level(int level) |
| 69 | { |
| 70 | if (level < 0 || level >= COMPAL_LCD_LEVEL_MAX) |
| 71 | return -EINVAL; |
| 72 | |
| 73 | ec_write(COMPAL_EC_COMMAND_LCD_LEVEL, level); |
| 74 | |
| 75 | return 0; |
| 76 | } |
| 77 | |
| 78 | static int get_lcd_level(void) |
| 79 | { |
| 80 | u8 result; |
| 81 | |
| 82 | ec_read(COMPAL_EC_COMMAND_LCD_LEVEL, &result); |
| 83 | |
| 84 | return (int) result; |
| 85 | } |
| 86 | |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 87 | static int compal_rfkill_set(void *data, bool blocked) |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 88 | { |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 89 | unsigned long radio = (unsigned long) data; |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 90 | u8 result, value; |
| 91 | |
| 92 | ec_read(COMPAL_EC_COMMAND_WIRELESS, &result); |
| 93 | |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 94 | if (!blocked) |
| 95 | value = (u8) (result | radio); |
| 96 | else |
| 97 | value = (u8) (result & ~radio); |
| 98 | ec_write(COMPAL_EC_COMMAND_WIRELESS, value); |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 99 | |
| 100 | return 0; |
| 101 | } |
| 102 | |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 103 | static void compal_rfkill_poll(struct rfkill *rfkill, void *data) |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 104 | { |
| 105 | u8 result; |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 106 | bool hw_blocked; |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 107 | |
| 108 | ec_read(COMPAL_EC_COMMAND_WIRELESS, &result); |
| 109 | |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 110 | hw_blocked = !(result & KILLSWITCH_MASK); |
| 111 | rfkill_set_hw_state(rfkill, hw_blocked); |
| 112 | } |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 113 | |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 114 | static const struct rfkill_ops compal_rfkill_ops = { |
| 115 | .poll = compal_rfkill_poll, |
| 116 | .set_block = compal_rfkill_set, |
| 117 | }; |
| 118 | |
| 119 | static int setup_rfkill(void) |
| 120 | { |
| 121 | int ret; |
| 122 | |
| 123 | wifi_rfkill = rfkill_alloc("compal-wifi", &compal_device->dev, |
| 124 | RFKILL_TYPE_WLAN, &compal_rfkill_ops, |
| 125 | (void *) WLAN_MASK); |
| 126 | if (!wifi_rfkill) |
| 127 | return -ENOMEM; |
| 128 | |
| 129 | ret = rfkill_register(wifi_rfkill); |
| 130 | if (ret) |
| 131 | goto err_wifi; |
| 132 | |
| 133 | bt_rfkill = rfkill_alloc("compal-bluetooth", &compal_device->dev, |
| 134 | RFKILL_TYPE_BLUETOOTH, &compal_rfkill_ops, |
| 135 | (void *) BT_MASK); |
| 136 | if (!bt_rfkill) { |
| 137 | ret = -ENOMEM; |
| 138 | goto err_allocate_bt; |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 139 | } |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 140 | ret = rfkill_register(bt_rfkill); |
| 141 | if (ret) |
| 142 | goto err_register_bt; |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 143 | |
| 144 | return 0; |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 145 | |
| 146 | err_register_bt: |
| 147 | rfkill_destroy(bt_rfkill); |
| 148 | |
| 149 | err_allocate_bt: |
| 150 | rfkill_unregister(wifi_rfkill); |
| 151 | |
| 152 | err_wifi: |
| 153 | rfkill_destroy(wifi_rfkill); |
| 154 | |
| 155 | return ret; |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 156 | } |
| 157 | |
| 158 | /* Backlight device stuff */ |
| 159 | |
| 160 | static int bl_get_brightness(struct backlight_device *b) |
| 161 | { |
| 162 | return get_lcd_level(); |
| 163 | } |
| 164 | |
| 165 | |
| 166 | static int bl_update_status(struct backlight_device *b) |
| 167 | { |
| 168 | return set_lcd_level(b->props.brightness); |
| 169 | } |
| 170 | |
| 171 | static struct backlight_ops compalbl_ops = { |
| 172 | .get_brightness = bl_get_brightness, |
| 173 | .update_status = bl_update_status, |
| 174 | }; |
| 175 | |
| 176 | static struct backlight_device *compalbl_device; |
| 177 | |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 178 | |
| 179 | static struct platform_driver compal_driver = { |
| 180 | .driver = { |
| 181 | .name = "compal-laptop", |
| 182 | .owner = THIS_MODULE, |
| 183 | } |
| 184 | }; |
| 185 | |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 186 | /* Initialization */ |
| 187 | |
| 188 | static int dmi_check_cb(const struct dmi_system_id *id) |
| 189 | { |
| 190 | printk(KERN_INFO "compal-laptop: Identified laptop model '%s'.\n", |
| 191 | id->ident); |
| 192 | |
| 193 | return 0; |
| 194 | } |
| 195 | |
| 196 | static struct dmi_system_id __initdata compal_dmi_table[] = { |
| 197 | { |
| 198 | .ident = "FL90/IFL90", |
| 199 | .matches = { |
| 200 | DMI_MATCH(DMI_BOARD_NAME, "IFL90"), |
| 201 | DMI_MATCH(DMI_BOARD_VERSION, "IFT00"), |
| 202 | }, |
| 203 | .callback = dmi_check_cb |
| 204 | }, |
| 205 | { |
| 206 | .ident = "FL90/IFL90", |
| 207 | .matches = { |
| 208 | DMI_MATCH(DMI_BOARD_NAME, "IFL90"), |
| 209 | DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"), |
| 210 | }, |
| 211 | .callback = dmi_check_cb |
| 212 | }, |
| 213 | { |
| 214 | .ident = "FL91/IFL91", |
| 215 | .matches = { |
| 216 | DMI_MATCH(DMI_BOARD_NAME, "IFL91"), |
| 217 | DMI_MATCH(DMI_BOARD_VERSION, "IFT00"), |
| 218 | }, |
| 219 | .callback = dmi_check_cb |
| 220 | }, |
| 221 | { |
| 222 | .ident = "FL92/JFL92", |
| 223 | .matches = { |
| 224 | DMI_MATCH(DMI_BOARD_NAME, "JFL92"), |
| 225 | DMI_MATCH(DMI_BOARD_VERSION, "IFT00"), |
| 226 | }, |
| 227 | .callback = dmi_check_cb |
| 228 | }, |
| 229 | { |
| 230 | .ident = "FT00/IFT00", |
| 231 | .matches = { |
| 232 | DMI_MATCH(DMI_BOARD_NAME, "IFT00"), |
| 233 | DMI_MATCH(DMI_BOARD_VERSION, "IFT00"), |
| 234 | }, |
| 235 | .callback = dmi_check_cb |
| 236 | }, |
Mario Limonciello | 34325b9 | 2009-08-24 16:00:47 -0500 | [diff] [blame] | 237 | { |
| 238 | .ident = "Dell Mini 9", |
| 239 | .matches = { |
| 240 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| 241 | DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 910"), |
| 242 | }, |
| 243 | .callback = dmi_check_cb |
| 244 | }, |
| 245 | { |
| 246 | .ident = "Dell Mini 10", |
| 247 | .matches = { |
| 248 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| 249 | DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1010"), |
| 250 | }, |
| 251 | .callback = dmi_check_cb |
| 252 | }, |
| 253 | { |
| 254 | .ident = "Dell Mini 10v", |
| 255 | .matches = { |
| 256 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| 257 | DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1011"), |
| 258 | }, |
| 259 | .callback = dmi_check_cb |
| 260 | }, |
| 261 | { |
| 262 | .ident = "Dell Inspiron 11z", |
| 263 | .matches = { |
| 264 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| 265 | DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1110"), |
| 266 | }, |
| 267 | .callback = dmi_check_cb |
| 268 | }, |
| 269 | { |
| 270 | .ident = "Dell Mini 12", |
| 271 | .matches = { |
| 272 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| 273 | DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1210"), |
| 274 | }, |
| 275 | .callback = dmi_check_cb |
| 276 | }, |
| 277 | |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 278 | { } |
| 279 | }; |
| 280 | |
| 281 | static int __init compal_init(void) |
| 282 | { |
| 283 | int ret; |
| 284 | |
| 285 | if (acpi_disabled) |
| 286 | return -ENODEV; |
| 287 | |
| 288 | if (!force && !dmi_check_system(compal_dmi_table)) |
| 289 | return -ENODEV; |
| 290 | |
| 291 | /* Register backlight stuff */ |
| 292 | |
Thomas Renninger | 29454f1 | 2008-08-01 17:37:58 +0200 | [diff] [blame] | 293 | if (!acpi_video_backlight_support()) { |
Matthew Garrett | a19a6ee | 2010-02-17 16:39:44 -0500 | [diff] [blame] | 294 | struct backlight_properties props; |
| 295 | memset(&props, 0, sizeof(struct backlight_properties)); |
| 296 | props.max_brightness = COMPAL_LCD_LEVEL_MAX - 1; |
| 297 | compalbl_device = backlight_device_register("compal-laptop", |
| 298 | NULL, NULL, |
| 299 | &compalbl_ops, |
| 300 | &props); |
Thomas Renninger | 29454f1 | 2008-08-01 17:37:58 +0200 | [diff] [blame] | 301 | if (IS_ERR(compalbl_device)) |
| 302 | return PTR_ERR(compalbl_device); |
Thomas Renninger | 29454f1 | 2008-08-01 17:37:58 +0200 | [diff] [blame] | 303 | } |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 304 | |
| 305 | ret = platform_driver_register(&compal_driver); |
| 306 | if (ret) |
| 307 | goto fail_backlight; |
| 308 | |
| 309 | /* Register platform stuff */ |
| 310 | |
| 311 | compal_device = platform_device_alloc("compal-laptop", -1); |
| 312 | if (!compal_device) { |
| 313 | ret = -ENOMEM; |
| 314 | goto fail_platform_driver; |
| 315 | } |
| 316 | |
| 317 | ret = platform_device_add(compal_device); |
| 318 | if (ret) |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 319 | goto fail_platform_device; |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 320 | |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 321 | ret = setup_rfkill(); |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 322 | if (ret) |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 323 | goto fail_rfkill; |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 324 | |
| 325 | printk(KERN_INFO "compal-laptop: driver "COMPAL_DRIVER_VERSION |
| 326 | " successfully loaded.\n"); |
| 327 | |
| 328 | return 0; |
| 329 | |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 330 | fail_rfkill: |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 331 | platform_device_del(compal_device); |
| 332 | |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 333 | fail_platform_device: |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 334 | |
| 335 | platform_device_put(compal_device); |
| 336 | |
| 337 | fail_platform_driver: |
| 338 | |
| 339 | platform_driver_unregister(&compal_driver); |
| 340 | |
| 341 | fail_backlight: |
| 342 | |
| 343 | backlight_device_unregister(compalbl_device); |
| 344 | |
| 345 | return ret; |
| 346 | } |
| 347 | |
| 348 | static void __exit compal_cleanup(void) |
| 349 | { |
| 350 | |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 351 | platform_device_unregister(compal_device); |
| 352 | platform_driver_unregister(&compal_driver); |
| 353 | backlight_device_unregister(compalbl_device); |
Mario Limonciello | 493e914 | 2009-08-25 10:30:13 -0500 | [diff] [blame] | 354 | rfkill_unregister(wifi_rfkill); |
| 355 | rfkill_destroy(wifi_rfkill); |
| 356 | rfkill_unregister(bt_rfkill); |
| 357 | rfkill_destroy(bt_rfkill); |
Cezary Jackiewicz | 5411552 | 2008-06-09 16:22:22 -0700 | [diff] [blame] | 358 | |
| 359 | printk(KERN_INFO "compal-laptop: driver unloaded.\n"); |
| 360 | } |
| 361 | |
| 362 | module_init(compal_init); |
| 363 | module_exit(compal_cleanup); |
| 364 | |
| 365 | MODULE_AUTHOR("Cezary Jackiewicz"); |
| 366 | MODULE_DESCRIPTION("Compal Laptop Support"); |
| 367 | MODULE_VERSION(COMPAL_DRIVER_VERSION); |
| 368 | MODULE_LICENSE("GPL"); |
| 369 | |
| 370 | MODULE_ALIAS("dmi:*:rnIFL90:rvrIFT00:*"); |
| 371 | MODULE_ALIAS("dmi:*:rnIFL90:rvrREFERENCE:*"); |
| 372 | MODULE_ALIAS("dmi:*:rnIFL91:rvrIFT00:*"); |
| 373 | MODULE_ALIAS("dmi:*:rnJFL92:rvrIFT00:*"); |
| 374 | MODULE_ALIAS("dmi:*:rnIFT00:rvrIFT00:*"); |
Mario Limonciello | 34325b9 | 2009-08-24 16:00:47 -0500 | [diff] [blame] | 375 | MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron910:*"); |
| 376 | MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1010:*"); |
| 377 | MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1011:*"); |
| 378 | MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1110:*"); |
| 379 | MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1210:*"); |