Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * asus_acpi.c - Asus Laptop ACPI Extras |
| 3 | * |
| 4 | * |
| 5 | * Copyright (C) 2002, 2003, 2004 Julien Lerouge, Karol Kozimor |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | * |
| 21 | * |
| 22 | * The development page for this driver is located at |
| 23 | * http://sourceforge.net/projects/acpi4asus/ |
| 24 | * |
| 25 | * Credits: |
| 26 | * Pontus Fuchs - Helper functions, cleanup |
| 27 | * Johann Wiesner - Small compile fixes |
| 28 | * John Belmonte - ACPI code for Toshiba laptop was a good starting point. |
| 29 | * |
| 30 | * TODO: |
| 31 | * add Fn key status |
| 32 | * Add mode selection on module loading (parameter) -> still necessary? |
| 33 | * Complete display switching -- may require dirty hacks or calling _DOS? |
| 34 | */ |
| 35 | |
| 36 | #include <linux/kernel.h> |
| 37 | #include <linux/module.h> |
| 38 | #include <linux/init.h> |
| 39 | #include <linux/types.h> |
| 40 | #include <linux/proc_fs.h> |
| 41 | #include <acpi/acpi_drivers.h> |
| 42 | #include <acpi/acpi_bus.h> |
| 43 | #include <asm/uaccess.h> |
| 44 | |
| 45 | #define ASUS_ACPI_VERSION "0.29" |
| 46 | |
| 47 | #define PROC_ASUS "asus" //the directory |
| 48 | #define PROC_MLED "mled" |
| 49 | #define PROC_WLED "wled" |
| 50 | #define PROC_TLED "tled" |
| 51 | #define PROC_INFO "info" |
| 52 | #define PROC_LCD "lcd" |
| 53 | #define PROC_BRN "brn" |
| 54 | #define PROC_DISP "disp" |
| 55 | |
| 56 | #define ACPI_HOTK_NAME "Asus Laptop ACPI Extras Driver" |
| 57 | #define ACPI_HOTK_CLASS "hotkey" |
| 58 | #define ACPI_HOTK_DEVICE_NAME "Hotkey" |
| 59 | #define ACPI_HOTK_HID "ATK0100" |
| 60 | |
| 61 | /* |
| 62 | * Some events we use, same for all Asus |
| 63 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 64 | #define BR_UP 0x10 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | #define BR_DOWN 0x20 |
| 66 | |
| 67 | /* |
| 68 | * Flags for hotk status |
| 69 | */ |
| 70 | #define MLED_ON 0x01 //is MLED ON ? |
| 71 | #define WLED_ON 0x02 |
| 72 | #define TLED_ON 0x04 |
| 73 | |
| 74 | MODULE_AUTHOR("Julien Lerouge, Karol Kozimor"); |
| 75 | MODULE_DESCRIPTION(ACPI_HOTK_NAME); |
| 76 | MODULE_LICENSE("GPL"); |
| 77 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | static uid_t asus_uid; |
| 79 | static gid_t asus_gid; |
| 80 | module_param(asus_uid, uint, 0); |
Karol Kozimor | aea19aa | 2006-01-03 23:05:00 -0500 | [diff] [blame] | 81 | MODULE_PARM_DESC(asus_uid, "UID for entries in /proc/acpi/asus.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | module_param(asus_gid, uint, 0); |
Karol Kozimor | aea19aa | 2006-01-03 23:05:00 -0500 | [diff] [blame] | 83 | MODULE_PARM_DESC(asus_gid, "GID for entries in /proc/acpi/asus.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | /* For each model, all features implemented, |
| 86 | * those marked with R are relative to HOTK, A for absolute */ |
| 87 | struct model_data { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 88 | char *name; //name of the laptop________________A |
| 89 | char *mt_mled; //method to handle mled_____________R |
| 90 | char *mled_status; //node to handle mled reading_______A |
| 91 | char *mt_wled; //method to handle wled_____________R |
| 92 | char *wled_status; //node to handle wled reading_______A |
| 93 | char *mt_tled; //method to handle tled_____________R |
| 94 | char *tled_status; //node to handle tled reading_______A |
| 95 | char *mt_lcd_switch; //method to turn LCD ON/OFF_________A |
| 96 | char *lcd_status; //node to read LCD panel state______A |
| 97 | char *brightness_up; //method to set brightness up_______A |
| 98 | char *brightness_down; //guess what ?______________________A |
| 99 | char *brightness_set; //method to set absolute brightness_R |
| 100 | char *brightness_get; //method to get absolute brightness_R |
| 101 | char *brightness_status; //node to get brightness____________A |
| 102 | char *display_set; //method to set video output________R |
| 103 | char *display_get; //method to get video output________R |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | }; |
| 105 | |
| 106 | /* |
| 107 | * This is the main structure, we can use it to store anything interesting |
| 108 | * about the hotk device |
| 109 | */ |
| 110 | struct asus_hotk { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 111 | struct acpi_device *device; //the device we are in |
| 112 | acpi_handle handle; //the handle of the hotk device |
| 113 | char status; //status of the hotk, for LEDs, ... |
| 114 | struct model_data *methods; //methods available on the laptop |
| 115 | u8 brightness; //brightness level |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | enum { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 117 | A1x = 0, //A1340D, A1300F |
| 118 | A2x, //A2500H |
| 119 | D1x, //D1 |
| 120 | L2D, //L2000D |
| 121 | L3C, //L3800C |
| 122 | L3D, //L3400D |
| 123 | L3H, //L3H, but also L2000E |
| 124 | L4R, //L4500R |
| 125 | L5x, //L5800C |
| 126 | L8L, //L8400L |
| 127 | M1A, //M1300A |
| 128 | M2E, //M2400E, L4400L |
| 129 | M6N, //M6800N |
| 130 | M6R, //M6700R |
| 131 | P30, //Samsung P30 |
| 132 | S1x, //S1300A, but also L1400B and M2400A (L84F) |
| 133 | S2x, //S200 (J1 reported), Victor MP-XP7210 |
| 134 | xxN, //M2400N, M3700N, M5200N, S1300N, S5200N, W1OOON |
| 135 | //(Centrino) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | END_MODEL |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 137 | } model; //Models currently supported |
| 138 | u16 event_count[128]; //count for each event TODO make this better |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | }; |
| 140 | |
| 141 | /* Here we go */ |
| 142 | #define A1x_PREFIX "\\_SB.PCI0.ISA.EC0." |
| 143 | #define L3C_PREFIX "\\_SB.PCI0.PX40.ECD0." |
| 144 | #define M1A_PREFIX "\\_SB.PCI0.PX40.EC0." |
| 145 | #define P30_PREFIX "\\_SB.PCI0.LPCB.EC0." |
| 146 | #define S1x_PREFIX "\\_SB.PCI0.PX40." |
| 147 | #define S2x_PREFIX A1x_PREFIX |
| 148 | #define xxN_PREFIX "\\_SB.PCI0.SBRG.EC0." |
| 149 | |
| 150 | static struct model_data model_conf[END_MODEL] = { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 151 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | * Those pathnames are relative to the HOTK / ATKD device : |
| 153 | * - mt_mled |
| 154 | * - mt_wled |
| 155 | * - brightness_set |
| 156 | * - brightness_get |
| 157 | * - display_set |
| 158 | * - display_get |
| 159 | * |
| 160 | * TODO I have seen a SWBX and AIBX method on some models, like L1400B, |
| 161 | * it seems to be a kind of switch, but what for ? |
| 162 | * |
| 163 | */ |
| 164 | |
| 165 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 166 | .name = "A1x", |
| 167 | .mt_mled = "MLED", |
| 168 | .mled_status = "\\MAIL", |
| 169 | .mt_lcd_switch = A1x_PREFIX "_Q10", |
| 170 | .lcd_status = "\\BKLI", |
| 171 | .brightness_up = A1x_PREFIX "_Q0E", |
| 172 | .brightness_down = A1x_PREFIX "_Q0F"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | |
| 174 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 175 | .name = "A2x", |
| 176 | .mt_mled = "MLED", |
| 177 | .mt_wled = "WLED", |
| 178 | .wled_status = "\\SG66", |
| 179 | .mt_lcd_switch = "\\Q10", |
| 180 | .lcd_status = "\\BAOF", |
| 181 | .brightness_set = "SPLV", |
| 182 | .brightness_get = "GPLV", |
| 183 | .display_set = "SDSP", |
| 184 | .display_get = "\\INFB"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | |
| 186 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 187 | .name = "D1x", |
| 188 | .mt_mled = "MLED", |
| 189 | .mt_lcd_switch = "\\Q0D", |
| 190 | .lcd_status = "\\GP11", |
| 191 | .brightness_up = "\\Q0C", |
| 192 | .brightness_down = "\\Q0B", |
| 193 | .brightness_status = "\\BLVL", |
| 194 | .display_set = "SDSP", |
| 195 | .display_get = "\\INFB"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | |
| 197 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 198 | .name = "L2D", |
| 199 | .mt_mled = "MLED", |
| 200 | .mled_status = "\\SGP6", |
| 201 | .mt_wled = "WLED", |
| 202 | .wled_status = "\\RCP3", |
| 203 | .mt_lcd_switch = "\\Q10", |
| 204 | .lcd_status = "\\SGP0", |
| 205 | .brightness_up = "\\Q0E", |
| 206 | .brightness_down = "\\Q0F", |
| 207 | .display_set = "SDSP", |
| 208 | .display_get = "\\INFB"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | |
| 210 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 211 | .name = "L3C", |
| 212 | .mt_mled = "MLED", |
| 213 | .mt_wled = "WLED", |
| 214 | .mt_lcd_switch = L3C_PREFIX "_Q10", |
| 215 | .lcd_status = "\\GL32", |
| 216 | .brightness_set = "SPLV", |
| 217 | .brightness_get = "GPLV", |
| 218 | .display_set = "SDSP", |
| 219 | .display_get = "\\_SB.PCI0.PCI1.VGAC.NMAP"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | |
| 221 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 222 | .name = "L3D", |
| 223 | .mt_mled = "MLED", |
| 224 | .mled_status = "\\MALD", |
| 225 | .mt_wled = "WLED", |
| 226 | .mt_lcd_switch = "\\Q10", |
| 227 | .lcd_status = "\\BKLG", |
| 228 | .brightness_set = "SPLV", |
| 229 | .brightness_get = "GPLV", |
| 230 | .display_set = "SDSP", |
| 231 | .display_get = "\\INFB"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | |
| 233 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 234 | .name = "L3H", |
| 235 | .mt_mled = "MLED", |
| 236 | .mt_wled = "WLED", |
| 237 | .mt_lcd_switch = "EHK", |
| 238 | .lcd_status = "\\_SB.PCI0.PM.PBC", |
| 239 | .brightness_set = "SPLV", |
| 240 | .brightness_get = "GPLV", |
| 241 | .display_set = "SDSP", |
| 242 | .display_get = "\\INFB"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | |
| 244 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 245 | .name = "L4R", |
| 246 | .mt_mled = "MLED", |
| 247 | .mt_wled = "WLED", |
| 248 | .wled_status = "\\_SB.PCI0.SBRG.SG13", |
| 249 | .mt_lcd_switch = xxN_PREFIX "_Q10", |
| 250 | .lcd_status = "\\_SB.PCI0.SBSM.SEO4", |
| 251 | .brightness_set = "SPLV", |
| 252 | .brightness_get = "GPLV", |
| 253 | .display_set = "SDSP", |
| 254 | .display_get = "\\_SB.PCI0.P0P1.VGA.GETD"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | |
| 256 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 257 | .name = "L5x", |
| 258 | .mt_mled = "MLED", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | /* WLED present, but not controlled by ACPI */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 260 | .mt_tled = "TLED", |
| 261 | .mt_lcd_switch = "\\Q0D", |
| 262 | .lcd_status = "\\BAOF", |
| 263 | .brightness_set = "SPLV", |
| 264 | .brightness_get = "GPLV", |
| 265 | .display_set = "SDSP", |
| 266 | .display_get = "\\INFB"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | |
| 268 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 269 | .name = "L8L" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | /* No features, but at least support the hotkeys */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 271 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | |
| 273 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 274 | .name = "M1A", |
| 275 | .mt_mled = "MLED", |
| 276 | .mt_lcd_switch = M1A_PREFIX "Q10", |
| 277 | .lcd_status = "\\PNOF", |
| 278 | .brightness_up = M1A_PREFIX "Q0E", |
| 279 | .brightness_down = M1A_PREFIX "Q0F", |
| 280 | .brightness_status = "\\BRIT", |
| 281 | .display_set = "SDSP", |
| 282 | .display_get = "\\INFB"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | |
| 284 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 285 | .name = "M2E", |
| 286 | .mt_mled = "MLED", |
| 287 | .mt_wled = "WLED", |
| 288 | .mt_lcd_switch = "\\Q10", |
| 289 | .lcd_status = "\\GP06", |
| 290 | .brightness_set = "SPLV", |
| 291 | .brightness_get = "GPLV", |
| 292 | .display_set = "SDSP", |
| 293 | .display_get = "\\INFB"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | |
| 295 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 296 | .name = "M6N", |
| 297 | .mt_mled = "MLED", |
| 298 | .mt_wled = "WLED", |
| 299 | .wled_status = "\\_SB.PCI0.SBRG.SG13", |
| 300 | .mt_lcd_switch = xxN_PREFIX "_Q10", |
| 301 | .lcd_status = "\\_SB.BKLT", |
| 302 | .brightness_set = "SPLV", |
| 303 | .brightness_get = "GPLV", |
| 304 | .display_set = "SDSP", |
Karol Kozimor | bb84db9 | 2006-01-03 23:03:00 -0500 | [diff] [blame] | 305 | .display_get = "\\_SB.PCI0.P0P1.VGA.GETD"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 307 | .name = "M6R", |
| 308 | .mt_mled = "MLED", |
| 309 | .mt_wled = "WLED", |
| 310 | .mt_lcd_switch = xxN_PREFIX "_Q10", |
| 311 | .lcd_status = "\\_SB.PCI0.SBSM.SEO4", |
| 312 | .brightness_set = "SPLV", |
| 313 | .brightness_get = "GPLV", |
| 314 | .display_set = "SDSP", |
| 315 | .display_get = "\\SSTE"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | |
| 317 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 318 | .name = "P30", |
| 319 | .mt_wled = "WLED", |
| 320 | .mt_lcd_switch = P30_PREFIX "_Q0E", |
| 321 | .lcd_status = "\\BKLT", |
| 322 | .brightness_up = P30_PREFIX "_Q68", |
| 323 | .brightness_down = P30_PREFIX "_Q69", |
| 324 | .brightness_get = "GPLV", |
| 325 | .display_set = "SDSP", |
| 326 | .display_get = "\\DNXT"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | |
| 328 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 329 | .name = "S1x", |
| 330 | .mt_mled = "MLED", |
| 331 | .mled_status = "\\EMLE", |
| 332 | .mt_wled = "WLED", |
| 333 | .mt_lcd_switch = S1x_PREFIX "Q10", |
| 334 | .lcd_status = "\\PNOF", |
| 335 | .brightness_set = "SPLV", |
| 336 | .brightness_get = "GPLV"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | |
| 338 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 339 | .name = "S2x", |
| 340 | .mt_mled = "MLED", |
| 341 | .mled_status = "\\MAIL", |
| 342 | .mt_lcd_switch = S2x_PREFIX "_Q10", |
| 343 | .lcd_status = "\\BKLI", |
| 344 | .brightness_up = S2x_PREFIX "_Q0B", |
| 345 | .brightness_down = S2x_PREFIX "_Q0A"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | |
| 347 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 348 | .name = "xxN", |
| 349 | .mt_mled = "MLED", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | /* WLED present, but not controlled by ACPI */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 351 | .mt_lcd_switch = xxN_PREFIX "_Q10", |
| 352 | .lcd_status = "\\BKLT", |
| 353 | .brightness_set = "SPLV", |
| 354 | .brightness_get = "GPLV", |
| 355 | .display_set = "SDSP", |
| 356 | .display_get = "\\ADVG"} |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | }; |
| 358 | |
| 359 | /* procdir we use */ |
| 360 | static struct proc_dir_entry *asus_proc_dir; |
| 361 | |
| 362 | /* |
| 363 | * This header is made available to allow proper configuration given model, |
| 364 | * revision number , ... this info cannot go in struct asus_hotk because it is |
| 365 | * available before the hotk |
| 366 | */ |
| 367 | static struct acpi_table_header *asus_info; |
| 368 | |
| 369 | /* The actual device the driver binds to */ |
| 370 | static struct asus_hotk *hotk; |
| 371 | |
| 372 | /* |
| 373 | * The hotkey driver declaration |
| 374 | */ |
| 375 | static int asus_hotk_add(struct acpi_device *device); |
| 376 | static int asus_hotk_remove(struct acpi_device *device, int type); |
| 377 | static struct acpi_driver asus_hotk_driver = { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 378 | .name = ACPI_HOTK_NAME, |
| 379 | .class = ACPI_HOTK_CLASS, |
| 380 | .ids = ACPI_HOTK_HID, |
| 381 | .ops = { |
| 382 | .add = asus_hotk_add, |
| 383 | .remove = asus_hotk_remove, |
| 384 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | }; |
| 386 | |
| 387 | /* |
| 388 | * This function evaluates an ACPI method, given an int as parameter, the |
| 389 | * method is searched within the scope of the handle, can be NULL. The output |
| 390 | * of the method is written is output, which can also be NULL |
| 391 | * |
| 392 | * returns 1 if write is successful, 0 else. |
| 393 | */ |
| 394 | static int write_acpi_int(acpi_handle handle, const char *method, int val, |
| 395 | struct acpi_buffer *output) |
| 396 | { |
| 397 | struct acpi_object_list params; //list of input parameters (an int here) |
| 398 | union acpi_object in_obj; //the only param we use |
| 399 | acpi_status status; |
| 400 | |
| 401 | params.count = 1; |
| 402 | params.pointer = &in_obj; |
| 403 | in_obj.type = ACPI_TYPE_INTEGER; |
| 404 | in_obj.integer.value = val; |
| 405 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 406 | status = acpi_evaluate_object(handle, (char *)method, ¶ms, output); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | return (status == AE_OK); |
| 408 | } |
| 409 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | static int read_acpi_int(acpi_handle handle, const char *method, int *val) |
| 411 | { |
| 412 | struct acpi_buffer output; |
| 413 | union acpi_object out_obj; |
| 414 | acpi_status status; |
| 415 | |
| 416 | output.length = sizeof(out_obj); |
| 417 | output.pointer = &out_obj; |
| 418 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 419 | status = acpi_evaluate_object(handle, (char *)method, NULL, &output); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | *val = out_obj.integer.value; |
| 421 | return (status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER); |
| 422 | } |
| 423 | |
| 424 | /* |
| 425 | * We write our info in page, we begin at offset off and cannot write more |
| 426 | * than count bytes. We set eof to 1 if we handle those 2 values. We return the |
| 427 | * number of bytes written in page |
| 428 | */ |
| 429 | static int |
| 430 | proc_read_info(char *page, char **start, off_t off, int count, int *eof, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 431 | void *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | { |
| 433 | int len = 0; |
| 434 | int temp; |
| 435 | char buf[16]; //enough for all info |
| 436 | /* |
| 437 | * We use the easy way, we don't care of off and count, so we don't set eof |
| 438 | * to 1 |
| 439 | */ |
| 440 | |
| 441 | len += sprintf(page, ACPI_HOTK_NAME " " ASUS_ACPI_VERSION "\n"); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 442 | len += sprintf(page + len, "Model reference : %s\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | hotk->methods->name); |
| 444 | /* |
| 445 | * The SFUN method probably allows the original driver to get the list |
| 446 | * of features supported by a given model. For now, 0x0100 or 0x0800 |
| 447 | * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card. |
| 448 | * The significance of others is yet to be found. |
| 449 | */ |
| 450 | if (read_acpi_int(hotk->handle, "SFUN", &temp)) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 451 | len += |
| 452 | sprintf(page + len, "SFUN value : 0x%04x\n", temp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | /* |
| 454 | * Another value for userspace: the ASYM method returns 0x02 for |
| 455 | * battery low and 0x04 for battery critical, its readings tend to be |
| 456 | * more accurate than those provided by _BST. |
| 457 | * Note: since not all the laptops provide this method, errors are |
| 458 | * silently ignored. |
| 459 | */ |
| 460 | if (read_acpi_int(hotk->handle, "ASYM", &temp)) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 461 | len += |
| 462 | sprintf(page + len, "ASYM value : 0x%04x\n", temp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | if (asus_info) { |
| 464 | snprintf(buf, 16, "%d", asus_info->length); |
| 465 | len += sprintf(page + len, "DSDT length : %s\n", buf); |
| 466 | snprintf(buf, 16, "%d", asus_info->checksum); |
| 467 | len += sprintf(page + len, "DSDT checksum : %s\n", buf); |
| 468 | snprintf(buf, 16, "%d", asus_info->revision); |
| 469 | len += sprintf(page + len, "DSDT revision : %s\n", buf); |
| 470 | snprintf(buf, 7, "%s", asus_info->oem_id); |
| 471 | len += sprintf(page + len, "OEM id : %s\n", buf); |
| 472 | snprintf(buf, 9, "%s", asus_info->oem_table_id); |
| 473 | len += sprintf(page + len, "OEM table id : %s\n", buf); |
| 474 | snprintf(buf, 16, "%x", asus_info->oem_revision); |
| 475 | len += sprintf(page + len, "OEM revision : 0x%s\n", buf); |
| 476 | snprintf(buf, 5, "%s", asus_info->asl_compiler_id); |
| 477 | len += sprintf(page + len, "ASL comp vendor id : %s\n", buf); |
| 478 | snprintf(buf, 16, "%x", asus_info->asl_compiler_revision); |
| 479 | len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf); |
| 480 | } |
| 481 | |
| 482 | return len; |
| 483 | } |
| 484 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | /* |
| 486 | * /proc handlers |
| 487 | * We write our info in page, we begin at offset off and cannot write more |
| 488 | * than count bytes. We set eof to 1 if we handle those 2 values. We return the |
| 489 | * number of bytes written in page |
| 490 | */ |
| 491 | |
| 492 | /* Generic LED functions */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 493 | static int read_led(const char *ledname, int ledmask) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 494 | { |
| 495 | if (ledname) { |
| 496 | int led_status; |
| 497 | |
| 498 | if (read_acpi_int(NULL, ledname, &led_status)) |
| 499 | return led_status; |
| 500 | else |
| 501 | printk(KERN_WARNING "Asus ACPI: Error reading LED " |
| 502 | "status\n"); |
| 503 | } |
| 504 | return (hotk->status & ledmask) ? 1 : 0; |
| 505 | } |
| 506 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 507 | static int parse_arg(const char __user * buf, unsigned long count, int *val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | { |
| 509 | char s[32]; |
| 510 | if (!count) |
| 511 | return 0; |
| 512 | if (count > 31) |
| 513 | return -EINVAL; |
| 514 | if (copy_from_user(s, buf, count)) |
| 515 | return -EFAULT; |
| 516 | s[count] = 0; |
| 517 | if (sscanf(s, "%i", val) != 1) |
| 518 | return -EINVAL; |
| 519 | return count; |
| 520 | } |
| 521 | |
| 522 | /* FIXME: kill extraneous args so it can be called independently */ |
| 523 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 524 | write_led(const char __user * buffer, unsigned long count, |
| 525 | char *ledname, int ledmask, int invert) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | { |
| 527 | int value; |
| 528 | int led_out = 0; |
| 529 | |
| 530 | count = parse_arg(buffer, count, &value); |
| 531 | if (count > 0) |
| 532 | led_out = value ? 1 : 0; |
| 533 | |
| 534 | hotk->status = |
| 535 | (led_out) ? (hotk->status | ledmask) : (hotk->status & ~ledmask); |
| 536 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 537 | if (invert) /* invert target value */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | led_out = !led_out & 0x1; |
| 539 | |
| 540 | if (!write_acpi_int(hotk->handle, ledname, led_out, NULL)) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 541 | printk(KERN_WARNING "Asus ACPI: LED (%s) write failed\n", |
| 542 | ledname); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | |
| 544 | return count; |
| 545 | } |
| 546 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | /* |
| 548 | * Proc handlers for MLED |
| 549 | */ |
| 550 | static int |
| 551 | proc_read_mled(char *page, char **start, off_t off, int count, int *eof, |
| 552 | void *data) |
| 553 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 554 | return sprintf(page, "%d\n", |
| 555 | read_led(hotk->methods->mled_status, MLED_ON)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 556 | } |
| 557 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 559 | proc_write_mled(struct file *file, const char __user * buffer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | unsigned long count, void *data) |
| 561 | { |
| 562 | return write_led(buffer, count, hotk->methods->mt_mled, MLED_ON, 1); |
| 563 | } |
| 564 | |
| 565 | /* |
| 566 | * Proc handlers for WLED |
| 567 | */ |
| 568 | static int |
| 569 | proc_read_wled(char *page, char **start, off_t off, int count, int *eof, |
| 570 | void *data) |
| 571 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 572 | return sprintf(page, "%d\n", |
| 573 | read_led(hotk->methods->wled_status, WLED_ON)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | } |
| 575 | |
| 576 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 577 | proc_write_wled(struct file *file, const char __user * buffer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | unsigned long count, void *data) |
| 579 | { |
| 580 | return write_led(buffer, count, hotk->methods->mt_wled, WLED_ON, 0); |
| 581 | } |
| 582 | |
| 583 | /* |
| 584 | * Proc handlers for TLED |
| 585 | */ |
| 586 | static int |
| 587 | proc_read_tled(char *page, char **start, off_t off, int count, int *eof, |
| 588 | void *data) |
| 589 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 590 | return sprintf(page, "%d\n", |
| 591 | read_led(hotk->methods->tled_status, TLED_ON)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | } |
| 593 | |
| 594 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 595 | proc_write_tled(struct file *file, const char __user * buffer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | unsigned long count, void *data) |
| 597 | { |
| 598 | return write_led(buffer, count, hotk->methods->mt_tled, TLED_ON, 0); |
| 599 | } |
| 600 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | static int get_lcd_state(void) |
| 602 | { |
| 603 | int lcd = 0; |
| 604 | |
| 605 | if (hotk->model != L3H) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 606 | /* We don't have to check anything if we are here */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | if (!read_acpi_int(NULL, hotk->methods->lcd_status, &lcd)) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 608 | printk(KERN_WARNING |
| 609 | "Asus ACPI: Error reading LCD status\n"); |
| 610 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | if (hotk->model == L2D) |
| 612 | lcd = ~lcd; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 613 | } else { /* L3H and the like have to be handled differently */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | acpi_status status = 0; |
| 615 | struct acpi_object_list input; |
| 616 | union acpi_object mt_params[2]; |
| 617 | struct acpi_buffer output; |
| 618 | union acpi_object out_obj; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 619 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | input.count = 2; |
| 621 | input.pointer = mt_params; |
| 622 | /* Note: the following values are partly guessed up, but |
| 623 | otherwise they seem to work */ |
| 624 | mt_params[0].type = ACPI_TYPE_INTEGER; |
| 625 | mt_params[0].integer.value = 0x02; |
| 626 | mt_params[1].type = ACPI_TYPE_INTEGER; |
| 627 | mt_params[1].integer.value = 0x02; |
| 628 | |
| 629 | output.length = sizeof(out_obj); |
| 630 | output.pointer = &out_obj; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 631 | |
| 632 | status = |
| 633 | acpi_evaluate_object(NULL, hotk->methods->lcd_status, |
| 634 | &input, &output); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 635 | if (status != AE_OK) |
| 636 | return -1; |
| 637 | if (out_obj.type == ACPI_TYPE_INTEGER) |
| 638 | /* That's what the AML code does */ |
| 639 | lcd = out_obj.integer.value >> 8; |
| 640 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 641 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | return (lcd & 1); |
| 643 | } |
| 644 | |
| 645 | static int set_lcd_state(int value) |
| 646 | { |
| 647 | int lcd = 0; |
| 648 | acpi_status status = 0; |
| 649 | |
| 650 | lcd = value ? 1 : 0; |
| 651 | if (lcd != get_lcd_state()) { |
| 652 | /* switch */ |
| 653 | if (hotk->model != L3H) { |
| 654 | status = |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 655 | acpi_evaluate_object(NULL, |
| 656 | hotk->methods->mt_lcd_switch, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | NULL, NULL); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 658 | } else { /* L3H and the like have to be handled differently */ |
| 659 | if (!write_acpi_int |
| 660 | (hotk->handle, hotk->methods->mt_lcd_switch, 0x07, |
| 661 | NULL)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 662 | status = AE_ERROR; |
| 663 | /* L3H's AML executes EHK (0x07) upon Fn+F7 keypress, |
| 664 | the exact behaviour is simulated here */ |
| 665 | } |
| 666 | if (ACPI_FAILURE(status)) |
| 667 | printk(KERN_WARNING "Asus ACPI: Error switching LCD\n"); |
| 668 | } |
| 669 | return 0; |
| 670 | |
| 671 | } |
| 672 | |
| 673 | static int |
| 674 | proc_read_lcd(char *page, char **start, off_t off, int count, int *eof, |
| 675 | void *data) |
| 676 | { |
| 677 | return sprintf(page, "%d\n", get_lcd_state()); |
| 678 | } |
| 679 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 681 | proc_write_lcd(struct file *file, const char __user * buffer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | unsigned long count, void *data) |
| 683 | { |
| 684 | int value; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 685 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | count = parse_arg(buffer, count, &value); |
| 687 | if (count > 0) |
| 688 | set_lcd_state(value); |
| 689 | return count; |
| 690 | } |
| 691 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | static int read_brightness(void) |
| 693 | { |
| 694 | int value; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 695 | |
| 696 | if (hotk->methods->brightness_get) { /* SPLV/GPLV laptop */ |
| 697 | if (!read_acpi_int(hotk->handle, hotk->methods->brightness_get, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | &value)) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 699 | printk(KERN_WARNING |
| 700 | "Asus ACPI: Error reading brightness\n"); |
| 701 | } else if (hotk->methods->brightness_status) { /* For D1 for example */ |
| 702 | if (!read_acpi_int(NULL, hotk->methods->brightness_status, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | &value)) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 704 | printk(KERN_WARNING |
| 705 | "Asus ACPI: Error reading brightness\n"); |
| 706 | } else /* No GPLV method */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 707 | value = hotk->brightness; |
| 708 | return value; |
| 709 | } |
| 710 | |
| 711 | /* |
| 712 | * Change the brightness level |
| 713 | */ |
| 714 | static void set_brightness(int value) |
| 715 | { |
| 716 | acpi_status status = 0; |
| 717 | |
| 718 | /* SPLV laptop */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 719 | if (hotk->methods->brightness_set) { |
| 720 | if (!write_acpi_int(hotk->handle, hotk->methods->brightness_set, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | value, NULL)) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 722 | printk(KERN_WARNING |
| 723 | "Asus ACPI: Error changing brightness\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | return; |
| 725 | } |
| 726 | |
| 727 | /* No SPLV method if we are here, act as appropriate */ |
| 728 | value -= read_brightness(); |
| 729 | while (value != 0) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 730 | status = acpi_evaluate_object(NULL, (value > 0) ? |
| 731 | hotk->methods->brightness_up : |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | hotk->methods->brightness_down, |
| 733 | NULL, NULL); |
| 734 | (value > 0) ? value-- : value++; |
| 735 | if (ACPI_FAILURE(status)) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 736 | printk(KERN_WARNING |
| 737 | "Asus ACPI: Error changing brightness\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | } |
| 739 | return; |
| 740 | } |
| 741 | |
| 742 | static int |
| 743 | proc_read_brn(char *page, char **start, off_t off, int count, int *eof, |
| 744 | void *data) |
| 745 | { |
| 746 | return sprintf(page, "%d\n", read_brightness()); |
| 747 | } |
| 748 | |
| 749 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 750 | proc_write_brn(struct file *file, const char __user * buffer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 751 | unsigned long count, void *data) |
| 752 | { |
| 753 | int value; |
| 754 | |
| 755 | count = parse_arg(buffer, count, &value); |
| 756 | if (count > 0) { |
| 757 | value = (0 < value) ? ((15 < value) ? 15 : value) : 0; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 758 | /* 0 <= value <= 15 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 759 | set_brightness(value); |
| 760 | } else if (count < 0) { |
| 761 | printk(KERN_WARNING "Asus ACPI: Error reading user input\n"); |
| 762 | } |
| 763 | |
| 764 | return count; |
| 765 | } |
| 766 | |
| 767 | static void set_display(int value) |
| 768 | { |
| 769 | /* no sanity check needed for now */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 770 | if (!write_acpi_int(hotk->handle, hotk->methods->display_set, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 771 | value, NULL)) |
| 772 | printk(KERN_WARNING "Asus ACPI: Error setting display\n"); |
| 773 | return; |
| 774 | } |
| 775 | |
| 776 | /* |
| 777 | * Now, *this* one could be more user-friendly, but so far, no-one has |
| 778 | * complained. The significance of bits is the same as in proc_write_disp() |
| 779 | */ |
| 780 | static int |
| 781 | proc_read_disp(char *page, char **start, off_t off, int count, int *eof, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 782 | void *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 783 | { |
| 784 | int value = 0; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 785 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 786 | if (!read_acpi_int(hotk->handle, hotk->methods->display_get, &value)) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 787 | printk(KERN_WARNING |
| 788 | "Asus ACPI: Error reading display status\n"); |
| 789 | value &= 0x07; /* needed for some models, shouldn't hurt others */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 790 | return sprintf(page, "%d\n", value); |
| 791 | } |
| 792 | |
| 793 | /* |
| 794 | * Experimental support for display switching. As of now: 1 should activate |
| 795 | * the LCD output, 2 should do for CRT, and 4 for TV-Out. Any combination |
| 796 | * (bitwise) of these will suffice. I never actually tested 3 displays hooked up |
| 797 | * simultaneously, so be warned. See the acpi4asus README for more info. |
| 798 | */ |
| 799 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 800 | proc_write_disp(struct file *file, const char __user * buffer, |
| 801 | unsigned long count, void *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 802 | { |
| 803 | int value; |
| 804 | |
| 805 | count = parse_arg(buffer, count, &value); |
| 806 | if (count > 0) |
| 807 | set_display(value); |
| 808 | else if (count < 0) |
| 809 | printk(KERN_WARNING "Asus ACPI: Error reading user input\n"); |
| 810 | |
| 811 | return count; |
| 812 | } |
| 813 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 814 | typedef int (proc_readfunc) (char *page, char **start, off_t off, int count, |
| 815 | int *eof, void *data); |
| 816 | typedef int (proc_writefunc) (struct file * file, const char __user * buffer, |
| 817 | unsigned long count, void *data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 818 | |
| 819 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 820 | __init asus_proc_add(char *name, proc_writefunc * writefunc, |
| 821 | proc_readfunc * readfunc, mode_t mode, |
| 822 | struct acpi_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 824 | struct proc_dir_entry *proc = |
| 825 | create_proc_entry(name, mode, acpi_device_dir(device)); |
| 826 | if (!proc) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 827 | printk(KERN_WARNING " Unable to create %s fs entry\n", name); |
| 828 | return -1; |
| 829 | } |
| 830 | proc->write_proc = writefunc; |
| 831 | proc->read_proc = readfunc; |
| 832 | proc->data = acpi_driver_data(device); |
| 833 | proc->owner = THIS_MODULE; |
| 834 | proc->uid = asus_uid; |
| 835 | proc->gid = asus_gid; |
| 836 | return 0; |
| 837 | } |
| 838 | |
| 839 | static int __init asus_hotk_add_fs(struct acpi_device *device) |
| 840 | { |
| 841 | struct proc_dir_entry *proc; |
| 842 | mode_t mode; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 843 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 844 | /* |
| 845 | * If parameter uid or gid is not changed, keep the default setting for |
| 846 | * our proc entries (-rw-rw-rw-) else, it means we care about security, |
| 847 | * and then set to -rw-rw---- |
| 848 | */ |
| 849 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 850 | if ((asus_uid == 0) && (asus_gid == 0)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 851 | mode = S_IFREG | S_IRUGO | S_IWUGO; |
| 852 | } else { |
| 853 | mode = S_IFREG | S_IRUSR | S_IRGRP | S_IWUSR | S_IWGRP; |
Karol Kozimor | aea19aa | 2006-01-03 23:05:00 -0500 | [diff] [blame] | 854 | printk(KERN_WARNING " asus_uid and asus_gid parameters are " |
| 855 | "deprecated, use chown and chmod instead!\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 856 | } |
| 857 | |
| 858 | acpi_device_dir(device) = asus_proc_dir; |
| 859 | if (!acpi_device_dir(device)) |
| 860 | return -ENODEV; |
| 861 | |
| 862 | proc = create_proc_entry(PROC_INFO, mode, acpi_device_dir(device)); |
| 863 | if (proc) { |
| 864 | proc->read_proc = proc_read_info; |
| 865 | proc->data = acpi_driver_data(device); |
| 866 | proc->owner = THIS_MODULE; |
| 867 | proc->uid = asus_uid; |
| 868 | proc->gid = asus_gid; |
| 869 | } else { |
| 870 | printk(KERN_WARNING " Unable to create " PROC_INFO |
| 871 | " fs entry\n"); |
| 872 | } |
| 873 | |
| 874 | if (hotk->methods->mt_wled) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 875 | asus_proc_add(PROC_WLED, &proc_write_wled, &proc_read_wled, |
| 876 | mode, device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 877 | } |
| 878 | |
| 879 | if (hotk->methods->mt_mled) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 880 | asus_proc_add(PROC_MLED, &proc_write_mled, &proc_read_mled, |
| 881 | mode, device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 882 | } |
| 883 | |
| 884 | if (hotk->methods->mt_tled) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 885 | asus_proc_add(PROC_TLED, &proc_write_tled, &proc_read_tled, |
| 886 | mode, device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | } |
| 888 | |
| 889 | /* |
| 890 | * We need both read node and write method as LCD switch is also accessible |
| 891 | * from keyboard |
| 892 | */ |
| 893 | if (hotk->methods->mt_lcd_switch && hotk->methods->lcd_status) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 894 | asus_proc_add(PROC_LCD, &proc_write_lcd, &proc_read_lcd, mode, |
| 895 | device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 897 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 898 | if ((hotk->methods->brightness_up && hotk->methods->brightness_down) || |
| 899 | (hotk->methods->brightness_get && hotk->methods->brightness_set)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 900 | asus_proc_add(PROC_BRN, &proc_write_brn, &proc_read_brn, mode, |
| 901 | device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 902 | } |
| 903 | |
| 904 | if (hotk->methods->display_set) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 905 | asus_proc_add(PROC_DISP, &proc_write_disp, &proc_read_disp, |
| 906 | mode, device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 907 | } |
| 908 | |
| 909 | return 0; |
| 910 | } |
| 911 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 912 | static int asus_hotk_remove_fs(struct acpi_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 913 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 914 | if (acpi_device_dir(device)) { |
| 915 | remove_proc_entry(PROC_INFO, acpi_device_dir(device)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 916 | if (hotk->methods->mt_wled) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 917 | remove_proc_entry(PROC_WLED, acpi_device_dir(device)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 918 | if (hotk->methods->mt_mled) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 919 | remove_proc_entry(PROC_MLED, acpi_device_dir(device)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 920 | if (hotk->methods->mt_tled) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 921 | remove_proc_entry(PROC_TLED, acpi_device_dir(device)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 922 | if (hotk->methods->mt_lcd_switch && hotk->methods->lcd_status) |
| 923 | remove_proc_entry(PROC_LCD, acpi_device_dir(device)); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 924 | if ((hotk->methods->brightness_up |
| 925 | && hotk->methods->brightness_down) |
| 926 | || (hotk->methods->brightness_get |
| 927 | && hotk->methods->brightness_set)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | remove_proc_entry(PROC_BRN, acpi_device_dir(device)); |
| 929 | if (hotk->methods->display_set) |
| 930 | remove_proc_entry(PROC_DISP, acpi_device_dir(device)); |
| 931 | } |
| 932 | return 0; |
| 933 | } |
| 934 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 935 | static void asus_hotk_notify(acpi_handle handle, u32 event, void *data) |
| 936 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 937 | /* TODO Find a better way to handle events count. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 938 | if (!hotk) |
| 939 | return; |
| 940 | |
| 941 | if ((event & ~((u32) BR_UP)) < 16) { |
| 942 | hotk->brightness = (event & ~((u32) BR_UP)); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 943 | } else if ((event & ~((u32) BR_DOWN)) < 16) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 944 | hotk->brightness = (event & ~((u32) BR_DOWN)); |
| 945 | } |
| 946 | |
| 947 | acpi_bus_generate_event(hotk->device, event, |
| 948 | hotk->event_count[event % 128]++); |
| 949 | |
| 950 | return; |
| 951 | } |
| 952 | |
| 953 | /* |
| 954 | * This function is used to initialize the hotk with right values. In this |
| 955 | * method, we can make all the detection we want, and modify the hotk struct |
| 956 | */ |
| 957 | static int __init asus_hotk_get_info(void) |
| 958 | { |
| 959 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 960 | struct acpi_buffer dsdt = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 961 | union acpi_object *model = NULL; |
| 962 | int bsts_result; |
| 963 | acpi_status status; |
| 964 | |
| 965 | /* |
| 966 | * Get DSDT headers early enough to allow for differentiating between |
| 967 | * models, but late enough to allow acpi_bus_register_driver() to fail |
| 968 | * before doing anything ACPI-specific. Should we encounter a machine, |
| 969 | * which needs special handling (i.e. its hotkey device has a different |
| 970 | * HID), this bit will be moved. A global variable asus_info contains |
| 971 | * the DSDT header. |
| 972 | */ |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 973 | status = acpi_get_table(ACPI_TABLE_ID_DSDT, 1, &dsdt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 974 | if (ACPI_FAILURE(status)) |
| 975 | printk(KERN_WARNING " Couldn't get the DSDT table header\n"); |
| 976 | else |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 977 | asus_info = (struct acpi_table_header *)dsdt.pointer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 978 | |
| 979 | /* We have to write 0 on init this far for all ASUS models */ |
| 980 | if (!write_acpi_int(hotk->handle, "INIT", 0, &buffer)) { |
| 981 | printk(KERN_ERR " Hotkey initialization failed\n"); |
| 982 | return -ENODEV; |
| 983 | } |
| 984 | |
| 985 | /* This needs to be called for some laptops to init properly */ |
| 986 | if (!read_acpi_int(hotk->handle, "BSTS", &bsts_result)) |
| 987 | printk(KERN_WARNING " Error calling BSTS\n"); |
| 988 | else if (bsts_result) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 989 | printk(KERN_NOTICE " BSTS called, 0x%02x returned\n", |
| 990 | bsts_result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 991 | |
Karol Kozimor | b697b53 | 2005-12-22 12:42:00 -0500 | [diff] [blame] | 992 | /* This is unlikely with implicit return */ |
| 993 | if (buffer.pointer == NULL) |
| 994 | return -EINVAL; |
| 995 | |
| 996 | model = (union acpi_object *) buffer.pointer; |
| 997 | /* |
| 998 | * Samsung P30 has a device with a valid _HID whose INIT does not |
| 999 | * return anything. It used to be possible to catch this exception, |
| 1000 | * but the implicit return code will now happily confuse the |
| 1001 | * driver. We assume that every ACPI_TYPE_STRING is a valid model |
| 1002 | * identifier but it's still possible to get completely bogus data. |
| 1003 | */ |
| 1004 | if (model->type == ACPI_TYPE_STRING) { |
| 1005 | printk(KERN_NOTICE " %s model detected, ", model->string.pointer); |
| 1006 | } else { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1007 | if (asus_info && /* Samsung P30 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | strncmp(asus_info->oem_table_id, "ODEM", 4) == 0) { |
| 1009 | hotk->model = P30; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1010 | printk(KERN_NOTICE |
| 1011 | " Samsung P30 detected, supported\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1012 | } else { |
| 1013 | hotk->model = M2E; |
| 1014 | printk(KERN_WARNING " no string returned by INIT\n"); |
| 1015 | printk(KERN_WARNING " trying default values, supply " |
| 1016 | "the developers with your DSDT\n"); |
| 1017 | } |
| 1018 | hotk->methods = &model_conf[hotk->model]; |
Karol Kozimor | b697b53 | 2005-12-22 12:42:00 -0500 | [diff] [blame] | 1019 | |
| 1020 | acpi_os_free(model); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1021 | |
Karol Kozimor | b697b53 | 2005-12-22 12:42:00 -0500 | [diff] [blame] | 1022 | return AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1023 | } |
| 1024 | |
| 1025 | hotk->model = END_MODEL; |
| 1026 | if (strncmp(model->string.pointer, "L3D", 3) == 0) |
| 1027 | hotk->model = L3D; |
| 1028 | else if (strncmp(model->string.pointer, "L3H", 3) == 0 || |
| 1029 | strncmp(model->string.pointer, "L2E", 3) == 0) |
| 1030 | hotk->model = L3H; |
| 1031 | else if (strncmp(model->string.pointer, "L3", 2) == 0 || |
| 1032 | strncmp(model->string.pointer, "L2B", 3) == 0) |
| 1033 | hotk->model = L3C; |
| 1034 | else if (strncmp(model->string.pointer, "L8L", 3) == 0) |
| 1035 | hotk->model = L8L; |
| 1036 | else if (strncmp(model->string.pointer, "L4R", 3) == 0) |
| 1037 | hotk->model = L4R; |
| 1038 | else if (strncmp(model->string.pointer, "M6N", 3) == 0) |
| 1039 | hotk->model = M6N; |
| 1040 | else if (strncmp(model->string.pointer, "M6R", 3) == 0) |
| 1041 | hotk->model = M6R; |
| 1042 | else if (strncmp(model->string.pointer, "M2N", 3) == 0 || |
| 1043 | strncmp(model->string.pointer, "M3N", 3) == 0 || |
| 1044 | strncmp(model->string.pointer, "M5N", 3) == 0 || |
| 1045 | strncmp(model->string.pointer, "M6N", 3) == 0 || |
| 1046 | strncmp(model->string.pointer, "S1N", 3) == 0 || |
| 1047 | strncmp(model->string.pointer, "S5N", 3) == 0 || |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1048 | strncmp(model->string.pointer, "W1N", 3) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1049 | hotk->model = xxN; |
| 1050 | else if (strncmp(model->string.pointer, "M1", 2) == 0) |
| 1051 | hotk->model = M1A; |
| 1052 | else if (strncmp(model->string.pointer, "M2", 2) == 0 || |
| 1053 | strncmp(model->string.pointer, "L4E", 3) == 0) |
| 1054 | hotk->model = M2E; |
| 1055 | else if (strncmp(model->string.pointer, "L2", 2) == 0) |
| 1056 | hotk->model = L2D; |
| 1057 | else if (strncmp(model->string.pointer, "L8", 2) == 0) |
| 1058 | hotk->model = S1x; |
| 1059 | else if (strncmp(model->string.pointer, "D1", 2) == 0) |
| 1060 | hotk->model = D1x; |
| 1061 | else if (strncmp(model->string.pointer, "A1", 2) == 0) |
| 1062 | hotk->model = A1x; |
| 1063 | else if (strncmp(model->string.pointer, "A2", 2) == 0) |
| 1064 | hotk->model = A2x; |
| 1065 | else if (strncmp(model->string.pointer, "J1", 2) == 0) |
| 1066 | hotk->model = S2x; |
| 1067 | else if (strncmp(model->string.pointer, "L5", 2) == 0) |
| 1068 | hotk->model = L5x; |
| 1069 | |
| 1070 | if (hotk->model == END_MODEL) { |
| 1071 | printk("unsupported, trying default values, supply the " |
| 1072 | "developers with your DSDT\n"); |
| 1073 | hotk->model = M2E; |
| 1074 | } else { |
| 1075 | printk("supported\n"); |
| 1076 | } |
| 1077 | |
| 1078 | hotk->methods = &model_conf[hotk->model]; |
| 1079 | |
| 1080 | /* Sort of per-model blacklist */ |
| 1081 | if (strncmp(model->string.pointer, "L2B", 3) == 0) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1082 | hotk->methods->lcd_status = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1083 | /* L2B is similar enough to L3C to use its settings, with this only |
| 1084 | exception */ |
| 1085 | else if (strncmp(model->string.pointer, "S5N", 3) == 0 || |
| 1086 | strncmp(model->string.pointer, "M5N", 3) == 0) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1087 | hotk->methods->mt_mled = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1088 | /* S5N and M5N have no MLED */ |
| 1089 | else if (strncmp(model->string.pointer, "M2N", 3) == 0 || |
| 1090 | strncmp(model->string.pointer, "W1N", 3) == 0) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1091 | hotk->methods->mt_wled = "WLED"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1092 | /* M2N and W1N have a usable WLED */ |
| 1093 | else if (asus_info) { |
| 1094 | if (strncmp(asus_info->oem_table_id, "L1", 2) == 0) |
| 1095 | hotk->methods->mled_status = NULL; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1096 | /* S1300A reports L84F, but L1400B too, account for that */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1097 | } |
| 1098 | |
| 1099 | acpi_os_free(model); |
| 1100 | |
| 1101 | return AE_OK; |
| 1102 | } |
| 1103 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1104 | static int __init asus_hotk_check(void) |
| 1105 | { |
| 1106 | int result = 0; |
| 1107 | |
| 1108 | result = acpi_bus_get_status(hotk->device); |
| 1109 | if (result) |
| 1110 | return result; |
| 1111 | |
| 1112 | if (hotk->device->status.present) { |
| 1113 | result = asus_hotk_get_info(); |
| 1114 | } else { |
| 1115 | printk(KERN_ERR " Hotkey device not present, aborting\n"); |
| 1116 | return -EINVAL; |
| 1117 | } |
| 1118 | |
| 1119 | return result; |
| 1120 | } |
| 1121 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1122 | static int __init asus_hotk_add(struct acpi_device *device) |
| 1123 | { |
| 1124 | acpi_status status = AE_OK; |
| 1125 | int result; |
| 1126 | |
| 1127 | if (!device) |
| 1128 | return -EINVAL; |
| 1129 | |
| 1130 | printk(KERN_NOTICE "Asus Laptop ACPI Extras version %s\n", |
| 1131 | ASUS_ACPI_VERSION); |
| 1132 | |
| 1133 | hotk = |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1134 | (struct asus_hotk *)kmalloc(sizeof(struct asus_hotk), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1135 | if (!hotk) |
| 1136 | return -ENOMEM; |
| 1137 | memset(hotk, 0, sizeof(struct asus_hotk)); |
| 1138 | |
| 1139 | hotk->handle = device->handle; |
| 1140 | strcpy(acpi_device_name(device), ACPI_HOTK_DEVICE_NAME); |
| 1141 | strcpy(acpi_device_class(device), ACPI_HOTK_CLASS); |
| 1142 | acpi_driver_data(device) = hotk; |
| 1143 | hotk->device = device; |
| 1144 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1145 | result = asus_hotk_check(); |
| 1146 | if (result) |
| 1147 | goto end; |
| 1148 | |
| 1149 | result = asus_hotk_add_fs(device); |
| 1150 | if (result) |
| 1151 | goto end; |
| 1152 | |
| 1153 | /* |
| 1154 | * We install the handler, it will receive the hotk in parameter, so, we |
| 1155 | * could add other data to the hotk struct |
| 1156 | */ |
| 1157 | status = acpi_install_notify_handler(hotk->handle, ACPI_SYSTEM_NOTIFY, |
| 1158 | asus_hotk_notify, hotk); |
| 1159 | if (ACPI_FAILURE(status)) |
| 1160 | printk(KERN_ERR " Error installing notify handler\n"); |
| 1161 | |
| 1162 | /* For laptops without GPLV: init the hotk->brightness value */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1163 | if ((!hotk->methods->brightness_get) |
| 1164 | && (!hotk->methods->brightness_status) |
| 1165 | && (hotk->methods->brightness_up |
| 1166 | && hotk->methods->brightness_down)) { |
| 1167 | status = |
| 1168 | acpi_evaluate_object(NULL, hotk->methods->brightness_down, |
| 1169 | NULL, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1170 | if (ACPI_FAILURE(status)) |
| 1171 | printk(KERN_WARNING " Error changing brightness\n"); |
| 1172 | else { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1173 | status = |
| 1174 | acpi_evaluate_object(NULL, |
| 1175 | hotk->methods->brightness_up, |
| 1176 | NULL, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1177 | if (ACPI_FAILURE(status)) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1178 | printk(KERN_WARNING " Strange, error changing" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1179 | " brightness\n"); |
| 1180 | } |
| 1181 | } |
| 1182 | |
| 1183 | end: |
| 1184 | if (result) { |
| 1185 | kfree(hotk); |
| 1186 | } |
| 1187 | |
| 1188 | return result; |
| 1189 | } |
| 1190 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1191 | static int asus_hotk_remove(struct acpi_device *device, int type) |
| 1192 | { |
| 1193 | acpi_status status = 0; |
| 1194 | |
| 1195 | if (!device || !acpi_driver_data(device)) |
| 1196 | return -EINVAL; |
| 1197 | |
| 1198 | status = acpi_remove_notify_handler(hotk->handle, ACPI_SYSTEM_NOTIFY, |
| 1199 | asus_hotk_notify); |
| 1200 | if (ACPI_FAILURE(status)) |
| 1201 | printk(KERN_ERR "Asus ACPI: Error removing notify handler\n"); |
| 1202 | |
| 1203 | asus_hotk_remove_fs(device); |
| 1204 | |
| 1205 | kfree(hotk); |
| 1206 | |
| 1207 | return 0; |
| 1208 | } |
| 1209 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1210 | static int __init asus_acpi_init(void) |
| 1211 | { |
| 1212 | int result; |
| 1213 | |
| 1214 | if (acpi_disabled) |
| 1215 | return -ENODEV; |
| 1216 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1217 | if (!acpi_specific_hotkey_enabled) { |
Luming Yu | fb9802f | 2005-03-18 18:03:45 -0500 | [diff] [blame] | 1218 | printk(KERN_ERR "Using generic hotkey driver\n"); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1219 | return -ENODEV; |
Luming Yu | fb9802f | 2005-03-18 18:03:45 -0500 | [diff] [blame] | 1220 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1221 | asus_proc_dir = proc_mkdir(PROC_ASUS, acpi_root_dir); |
| 1222 | if (!asus_proc_dir) { |
| 1223 | printk(KERN_ERR "Asus ACPI: Unable to create /proc entry\n"); |
| 1224 | return -ENODEV; |
| 1225 | } |
| 1226 | asus_proc_dir->owner = THIS_MODULE; |
| 1227 | |
| 1228 | result = acpi_bus_register_driver(&asus_hotk_driver); |
| 1229 | if (result < 1) { |
| 1230 | acpi_bus_unregister_driver(&asus_hotk_driver); |
| 1231 | remove_proc_entry(PROC_ASUS, acpi_root_dir); |
| 1232 | return -ENODEV; |
| 1233 | } |
| 1234 | |
| 1235 | return 0; |
| 1236 | } |
| 1237 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1238 | static void __exit asus_acpi_exit(void) |
| 1239 | { |
| 1240 | acpi_bus_unregister_driver(&asus_hotk_driver); |
| 1241 | remove_proc_entry(PROC_ASUS, acpi_root_dir); |
| 1242 | |
| 1243 | acpi_os_free(asus_info); |
| 1244 | |
| 1245 | return; |
| 1246 | } |
| 1247 | |
| 1248 | module_init(asus_acpi_init); |
| 1249 | module_exit(asus_acpi_exit); |