Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * toshiba_acpi.c - Toshiba Laptop ACPI Extras |
| 3 | * |
| 4 | * |
| 5 | * Copyright (C) 2002-2004 John Belmonte |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 6 | * Copyright (C) 2008 Philip Langdale |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | * |
| 22 | * |
| 23 | * The devolpment page for this driver is located at |
| 24 | * http://memebeam.org/toys/ToshibaAcpiDriver. |
| 25 | * |
| 26 | * Credits: |
| 27 | * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse |
| 28 | * engineering the Windows drivers |
| 29 | * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5 |
| 30 | * Rob Miller - TV out and hotkeys help |
| 31 | * |
| 32 | * |
| 33 | * TODO |
| 34 | * |
| 35 | */ |
| 36 | |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 37 | #define TOSHIBA_ACPI_VERSION "0.19" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #define PROC_INTERFACE_VERSION 1 |
| 39 | |
| 40 | #include <linux/kernel.h> |
| 41 | #include <linux/module.h> |
| 42 | #include <linux/init.h> |
| 43 | #include <linux/types.h> |
| 44 | #include <linux/proc_fs.h> |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 45 | #include <linux/backlight.h> |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 46 | #include <linux/platform_device.h> |
| 47 | #include <linux/rfkill.h> |
| 48 | #include <linux/input-polldev.h> |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 49 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | #include <asm/uaccess.h> |
| 51 | |
| 52 | #include <acpi/acpi_drivers.h> |
| 53 | |
| 54 | MODULE_AUTHOR("John Belmonte"); |
| 55 | MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver"); |
| 56 | MODULE_LICENSE("GPL"); |
| 57 | |
| 58 | #define MY_LOGPREFIX "toshiba_acpi: " |
| 59 | #define MY_ERR KERN_ERR MY_LOGPREFIX |
| 60 | #define MY_NOTICE KERN_NOTICE MY_LOGPREFIX |
| 61 | #define MY_INFO KERN_INFO MY_LOGPREFIX |
| 62 | |
| 63 | /* Toshiba ACPI method paths */ |
| 64 | #define METHOD_LCD_BRIGHTNESS "\\_SB_.PCI0.VGA_.LCD_._BCM" |
| 65 | #define METHOD_HCI_1 "\\_SB_.VALD.GHCI" |
| 66 | #define METHOD_HCI_2 "\\_SB_.VALZ.GHCI" |
| 67 | #define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX" |
| 68 | |
| 69 | /* Toshiba HCI interface definitions |
| 70 | * |
| 71 | * HCI is Toshiba's "Hardware Control Interface" which is supposed to |
| 72 | * be uniform across all their models. Ideally we would just call |
| 73 | * dedicated ACPI methods instead of using this primitive interface. |
| 74 | * However the ACPI methods seem to be incomplete in some areas (for |
| 75 | * example they allow setting, but not reading, the LCD brightness value), |
| 76 | * so this is still useful. |
| 77 | */ |
| 78 | |
| 79 | #define HCI_WORDS 6 |
| 80 | |
| 81 | /* operations */ |
| 82 | #define HCI_SET 0xff00 |
| 83 | #define HCI_GET 0xfe00 |
| 84 | |
| 85 | /* return codes */ |
| 86 | #define HCI_SUCCESS 0x0000 |
| 87 | #define HCI_FAILURE 0x1000 |
| 88 | #define HCI_NOT_SUPPORTED 0x8000 |
| 89 | #define HCI_EMPTY 0x8c00 |
| 90 | |
| 91 | /* registers */ |
| 92 | #define HCI_FAN 0x0004 |
| 93 | #define HCI_SYSTEM_EVENT 0x0016 |
| 94 | #define HCI_VIDEO_OUT 0x001c |
| 95 | #define HCI_HOTKEY_EVENT 0x001e |
| 96 | #define HCI_LCD_BRIGHTNESS 0x002a |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 97 | #define HCI_WIRELESS 0x0056 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | |
| 99 | /* field definitions */ |
| 100 | #define HCI_LCD_BRIGHTNESS_BITS 3 |
| 101 | #define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS) |
| 102 | #define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS) |
| 103 | #define HCI_VIDEO_OUT_LCD 0x1 |
| 104 | #define HCI_VIDEO_OUT_CRT 0x2 |
| 105 | #define HCI_VIDEO_OUT_TV 0x4 |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 106 | #define HCI_WIRELESS_KILL_SWITCH 0x01 |
| 107 | #define HCI_WIRELESS_BT_PRESENT 0x0f |
| 108 | #define HCI_WIRELESS_BT_ATTACH 0x40 |
| 109 | #define HCI_WIRELESS_BT_POWER 0x80 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | |
arvidjaar@mail.ru | 4db42c5 | 2008-03-04 15:06:34 -0800 | [diff] [blame] | 111 | static const struct acpi_device_id toshiba_device_ids[] = { |
| 112 | {"TOS6200", 0}, |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 113 | {"TOS6208", 0}, |
arvidjaar@mail.ru | 4db42c5 | 2008-03-04 15:06:34 -0800 | [diff] [blame] | 114 | {"TOS1900", 0}, |
| 115 | {"", 0}, |
| 116 | }; |
| 117 | MODULE_DEVICE_TABLE(acpi, toshiba_device_ids); |
| 118 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | /* utility |
| 120 | */ |
| 121 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 122 | static __inline__ void _set_bit(u32 * word, u32 mask, int value) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | { |
| 124 | *word = (*word & ~mask) | (mask * value); |
| 125 | } |
| 126 | |
| 127 | /* acpi interface wrappers |
| 128 | */ |
| 129 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 130 | static int is_valid_acpi_path(const char *methodName) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | { |
| 132 | acpi_handle handle; |
| 133 | acpi_status status; |
| 134 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 135 | status = acpi_get_handle(NULL, (char *)methodName, &handle); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | return !ACPI_FAILURE(status); |
| 137 | } |
| 138 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 139 | static int write_acpi_int(const char *methodName, int val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | { |
| 141 | struct acpi_object_list params; |
| 142 | union acpi_object in_objs[1]; |
| 143 | acpi_status status; |
| 144 | |
Ahmed S. Darwish | b2b7910 | 2007-02-06 16:14:43 -0800 | [diff] [blame] | 145 | params.count = ARRAY_SIZE(in_objs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | params.pointer = in_objs; |
| 147 | in_objs[0].type = ACPI_TYPE_INTEGER; |
| 148 | in_objs[0].integer.value = val; |
| 149 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 150 | status = acpi_evaluate_object(NULL, (char *)methodName, ¶ms, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | return (status == AE_OK); |
| 152 | } |
| 153 | |
| 154 | #if 0 |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 155 | static int read_acpi_int(const char *methodName, int *pVal) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | { |
| 157 | struct acpi_buffer results; |
| 158 | union acpi_object out_objs[1]; |
| 159 | acpi_status status; |
| 160 | |
| 161 | results.length = sizeof(out_objs); |
| 162 | results.pointer = out_objs; |
| 163 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 164 | status = acpi_evaluate_object(0, (char *)methodName, 0, &results); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | *pVal = out_objs[0].integer.value; |
| 166 | |
| 167 | return (status == AE_OK) && (out_objs[0].type == ACPI_TYPE_INTEGER); |
| 168 | } |
| 169 | #endif |
| 170 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 171 | static const char *method_hci /*= 0*/ ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | |
| 173 | /* Perform a raw HCI call. Here we don't care about input or output buffer |
| 174 | * format. |
| 175 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 176 | static acpi_status hci_raw(const u32 in[HCI_WORDS], u32 out[HCI_WORDS]) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | { |
| 178 | struct acpi_object_list params; |
| 179 | union acpi_object in_objs[HCI_WORDS]; |
| 180 | struct acpi_buffer results; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 181 | union acpi_object out_objs[HCI_WORDS + 1]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | acpi_status status; |
| 183 | int i; |
| 184 | |
| 185 | params.count = HCI_WORDS; |
| 186 | params.pointer = in_objs; |
| 187 | for (i = 0; i < HCI_WORDS; ++i) { |
| 188 | in_objs[i].type = ACPI_TYPE_INTEGER; |
| 189 | in_objs[i].integer.value = in[i]; |
| 190 | } |
| 191 | |
| 192 | results.length = sizeof(out_objs); |
| 193 | results.pointer = out_objs; |
| 194 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 195 | status = acpi_evaluate_object(NULL, (char *)method_hci, ¶ms, |
| 196 | &results); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) { |
| 198 | for (i = 0; i < out_objs->package.count; ++i) { |
| 199 | out[i] = out_objs->package.elements[i].integer.value; |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | return status; |
| 204 | } |
| 205 | |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 206 | /* common hci tasks (get or set one or two value) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | * |
| 208 | * In addition to the ACPI status, the HCI system returns a result which |
| 209 | * may be useful (such as "not supported"). |
| 210 | */ |
| 211 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 212 | static acpi_status hci_write1(u32 reg, u32 in1, u32 * result) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | { |
| 214 | u32 in[HCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 }; |
| 215 | u32 out[HCI_WORDS]; |
| 216 | acpi_status status = hci_raw(in, out); |
| 217 | *result = (status == AE_OK) ? out[0] : HCI_FAILURE; |
| 218 | return status; |
| 219 | } |
| 220 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 221 | static acpi_status hci_read1(u32 reg, u32 * out1, u32 * result) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | { |
| 223 | u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 }; |
| 224 | u32 out[HCI_WORDS]; |
| 225 | acpi_status status = hci_raw(in, out); |
| 226 | *out1 = out[2]; |
| 227 | *result = (status == AE_OK) ? out[0] : HCI_FAILURE; |
| 228 | return status; |
| 229 | } |
| 230 | |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 231 | static acpi_status hci_write2(u32 reg, u32 in1, u32 in2, u32 *result) |
| 232 | { |
| 233 | u32 in[HCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 }; |
| 234 | u32 out[HCI_WORDS]; |
| 235 | acpi_status status = hci_raw(in, out); |
| 236 | *result = (status == AE_OK) ? out[0] : HCI_FAILURE; |
| 237 | return status; |
| 238 | } |
| 239 | |
| 240 | static acpi_status hci_read2(u32 reg, u32 *out1, u32 *out2, u32 *result) |
| 241 | { |
| 242 | u32 in[HCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 }; |
| 243 | u32 out[HCI_WORDS]; |
| 244 | acpi_status status = hci_raw(in, out); |
| 245 | *out1 = out[2]; |
| 246 | *out2 = out[3]; |
| 247 | *result = (status == AE_OK) ? out[0] : HCI_FAILURE; |
| 248 | return status; |
| 249 | } |
| 250 | |
| 251 | struct toshiba_acpi_dev { |
| 252 | struct platform_device *p_dev; |
| 253 | struct rfkill *rfk_dev; |
| 254 | struct input_polled_dev *poll_dev; |
| 255 | |
| 256 | const char *bt_name; |
| 257 | const char *rfk_name; |
| 258 | |
| 259 | bool last_rfk_state; |
| 260 | |
| 261 | struct mutex mutex; |
| 262 | }; |
| 263 | |
| 264 | static struct toshiba_acpi_dev toshiba_acpi = { |
| 265 | .bt_name = "Toshiba Bluetooth", |
| 266 | .rfk_name = "Toshiba RFKill Switch", |
| 267 | .last_rfk_state = false, |
| 268 | }; |
| 269 | |
| 270 | /* Bluetooth rfkill handlers */ |
| 271 | |
| 272 | static u32 hci_get_bt_present(bool *present) |
| 273 | { |
| 274 | u32 hci_result; |
| 275 | u32 value, value2; |
| 276 | |
| 277 | value = 0; |
| 278 | value2 = 0; |
| 279 | hci_read2(HCI_WIRELESS, &value, &value2, &hci_result); |
| 280 | if (hci_result == HCI_SUCCESS) |
| 281 | *present = (value & HCI_WIRELESS_BT_PRESENT) ? true : false; |
| 282 | |
| 283 | return hci_result; |
| 284 | } |
| 285 | |
| 286 | static u32 hci_get_bt_on(bool *on) |
| 287 | { |
| 288 | u32 hci_result; |
| 289 | u32 value, value2; |
| 290 | |
| 291 | value = 0; |
| 292 | value2 = 0x0001; |
| 293 | hci_read2(HCI_WIRELESS, &value, &value2, &hci_result); |
| 294 | if (hci_result == HCI_SUCCESS) |
| 295 | *on = (value & HCI_WIRELESS_BT_POWER) && |
| 296 | (value & HCI_WIRELESS_BT_ATTACH); |
| 297 | |
| 298 | return hci_result; |
| 299 | } |
| 300 | |
| 301 | static u32 hci_get_radio_state(bool *radio_state) |
| 302 | { |
| 303 | u32 hci_result; |
| 304 | u32 value, value2; |
| 305 | |
| 306 | value = 0; |
| 307 | value2 = 0x0001; |
| 308 | hci_read2(HCI_WIRELESS, &value, &value2, &hci_result); |
| 309 | |
| 310 | *radio_state = value & HCI_WIRELESS_KILL_SWITCH; |
| 311 | return hci_result; |
| 312 | } |
| 313 | |
| 314 | static int bt_rfkill_toggle_radio(void *data, enum rfkill_state state) |
| 315 | { |
| 316 | u32 result1, result2; |
| 317 | u32 value; |
| 318 | bool radio_state; |
| 319 | struct toshiba_acpi_dev *dev = data; |
| 320 | |
| 321 | value = (state == RFKILL_STATE_UNBLOCKED); |
| 322 | |
| 323 | if (hci_get_radio_state(&radio_state) != HCI_SUCCESS) |
| 324 | return -EFAULT; |
| 325 | |
| 326 | switch (state) { |
| 327 | case RFKILL_STATE_UNBLOCKED: |
| 328 | if (!radio_state) |
| 329 | return -EPERM; |
| 330 | break; |
| 331 | case RFKILL_STATE_SOFT_BLOCKED: |
| 332 | break; |
| 333 | default: |
| 334 | return -EINVAL; |
| 335 | } |
| 336 | |
| 337 | mutex_lock(&dev->mutex); |
| 338 | hci_write2(HCI_WIRELESS, value, HCI_WIRELESS_BT_POWER, &result1); |
| 339 | hci_write2(HCI_WIRELESS, value, HCI_WIRELESS_BT_ATTACH, &result2); |
| 340 | mutex_unlock(&dev->mutex); |
| 341 | |
| 342 | if (result1 != HCI_SUCCESS || result2 != HCI_SUCCESS) |
| 343 | return -EFAULT; |
| 344 | |
| 345 | return 0; |
| 346 | } |
| 347 | |
| 348 | static void bt_poll_rfkill(struct input_polled_dev *poll_dev) |
| 349 | { |
| 350 | bool state_changed; |
| 351 | bool new_rfk_state; |
| 352 | bool value; |
| 353 | u32 hci_result; |
| 354 | struct toshiba_acpi_dev *dev = poll_dev->private; |
| 355 | |
| 356 | hci_result = hci_get_radio_state(&value); |
| 357 | if (hci_result != HCI_SUCCESS) |
| 358 | return; /* Can't do anything useful */ |
| 359 | |
| 360 | new_rfk_state = value; |
| 361 | |
| 362 | mutex_lock(&dev->mutex); |
| 363 | state_changed = new_rfk_state != dev->last_rfk_state; |
| 364 | dev->last_rfk_state = new_rfk_state; |
| 365 | mutex_unlock(&dev->mutex); |
| 366 | |
| 367 | if (unlikely(state_changed)) { |
| 368 | rfkill_force_state(dev->rfk_dev, |
| 369 | new_rfk_state ? |
| 370 | RFKILL_STATE_SOFT_BLOCKED : |
| 371 | RFKILL_STATE_HARD_BLOCKED); |
| 372 | input_report_switch(poll_dev->input, SW_RFKILL_ALL, |
| 373 | new_rfk_state); |
Len Brown | cab0896 | 2008-10-24 15:39:47 -0400 | [diff] [blame] | 374 | input_sync(poll_dev->input); |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 375 | } |
| 376 | } |
| 377 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 378 | static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ; |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 379 | static struct backlight_device *toshiba_backlight_device; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 380 | static int force_fan; |
| 381 | static int last_key_event; |
| 382 | static int key_event_valid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 384 | typedef struct _ProcItem { |
| 385 | const char *name; |
| 386 | char *(*read_func) (char *); |
| 387 | unsigned long (*write_func) (const char *, unsigned long); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | } ProcItem; |
| 389 | |
| 390 | /* proc file handlers |
| 391 | */ |
| 392 | |
| 393 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 394 | dispatch_read(char *page, char **start, off_t off, int count, int *eof, |
| 395 | ProcItem * item) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 397 | char *p = page; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | int len; |
| 399 | |
| 400 | if (off == 0) |
| 401 | p = item->read_func(p); |
| 402 | |
| 403 | /* ISSUE: I don't understand this code */ |
| 404 | len = (p - page); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 405 | if (len <= off + count) |
| 406 | *eof = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | *start = page + off; |
| 408 | len -= off; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 409 | if (len > count) |
| 410 | len = count; |
| 411 | if (len < 0) |
| 412 | len = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | return len; |
| 414 | } |
| 415 | |
| 416 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 417 | dispatch_write(struct file *file, const char __user * buffer, |
| 418 | unsigned long count, ProcItem * item) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | { |
| 420 | int result; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 421 | char *tmp_buffer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | |
| 423 | /* Arg buffer points to userspace memory, which can't be accessed |
| 424 | * directly. Since we're making a copy, zero-terminate the |
| 425 | * destination so that sscanf can be used on it safely. |
| 426 | */ |
| 427 | tmp_buffer = kmalloc(count + 1, GFP_KERNEL); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 428 | if (!tmp_buffer) |
Panagiotis Issaris | f422415 | 2005-03-30 22:15:36 -0500 | [diff] [blame] | 429 | return -ENOMEM; |
| 430 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | if (copy_from_user(tmp_buffer, buffer, count)) { |
| 432 | result = -EFAULT; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 433 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | tmp_buffer[count] = 0; |
| 435 | result = item->write_func(tmp_buffer, count); |
| 436 | } |
| 437 | kfree(tmp_buffer); |
| 438 | return result; |
| 439 | } |
| 440 | |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 441 | static int get_lcd(struct backlight_device *bd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | { |
| 443 | u32 hci_result; |
| 444 | u32 value; |
| 445 | |
| 446 | hci_read1(HCI_LCD_BRIGHTNESS, &value, &hci_result); |
| 447 | if (hci_result == HCI_SUCCESS) { |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 448 | return (value >> HCI_LCD_BRIGHTNESS_SHIFT); |
| 449 | } else |
| 450 | return -EFAULT; |
| 451 | } |
| 452 | |
| 453 | static char *read_lcd(char *p) |
| 454 | { |
| 455 | int value = get_lcd(NULL); |
| 456 | |
| 457 | if (value >= 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | p += sprintf(p, "brightness: %d\n", value); |
| 459 | p += sprintf(p, "brightness_levels: %d\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 460 | HCI_LCD_BRIGHTNESS_LEVELS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | } else { |
| 462 | printk(MY_ERR "Error reading LCD brightness\n"); |
| 463 | } |
| 464 | |
| 465 | return p; |
| 466 | } |
| 467 | |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 468 | static int set_lcd(int value) |
| 469 | { |
| 470 | u32 hci_result; |
| 471 | |
| 472 | value = value << HCI_LCD_BRIGHTNESS_SHIFT; |
| 473 | hci_write1(HCI_LCD_BRIGHTNESS, value, &hci_result); |
| 474 | if (hci_result != HCI_SUCCESS) |
| 475 | return -EFAULT; |
| 476 | |
| 477 | return 0; |
| 478 | } |
| 479 | |
| 480 | static int set_lcd_status(struct backlight_device *bd) |
| 481 | { |
Richard Purdie | 599a52d | 2007-02-10 23:07:48 +0000 | [diff] [blame] | 482 | return set_lcd(bd->props.brightness); |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 483 | } |
| 484 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 485 | static unsigned long write_lcd(const char *buffer, unsigned long count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | { |
| 487 | int value; |
Matthijs van Otterdijk | c8af57e | 2007-01-05 16:37:03 -0800 | [diff] [blame] | 488 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | |
| 490 | if (sscanf(buffer, " brightness : %i", &value) == 1 && |
Matthijs van Otterdijk | c8af57e | 2007-01-05 16:37:03 -0800 | [diff] [blame] | 491 | value >= 0 && value < HCI_LCD_BRIGHTNESS_LEVELS) { |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 492 | ret = set_lcd(value); |
Matthijs van Otterdijk | c8af57e | 2007-01-05 16:37:03 -0800 | [diff] [blame] | 493 | if (ret == 0) |
| 494 | ret = count; |
| 495 | } else { |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 496 | ret = -EINVAL; |
Matthijs van Otterdijk | c8af57e | 2007-01-05 16:37:03 -0800 | [diff] [blame] | 497 | } |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 498 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | } |
| 500 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 501 | static char *read_video(char *p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | { |
| 503 | u32 hci_result; |
| 504 | u32 value; |
| 505 | |
| 506 | hci_read1(HCI_VIDEO_OUT, &value, &hci_result); |
| 507 | if (hci_result == HCI_SUCCESS) { |
| 508 | int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0; |
| 509 | int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 510 | int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | p += sprintf(p, "lcd_out: %d\n", is_lcd); |
| 512 | p += sprintf(p, "crt_out: %d\n", is_crt); |
| 513 | p += sprintf(p, "tv_out: %d\n", is_tv); |
| 514 | } else { |
| 515 | printk(MY_ERR "Error reading video out status\n"); |
| 516 | } |
| 517 | |
| 518 | return p; |
| 519 | } |
| 520 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 521 | static unsigned long write_video(const char *buffer, unsigned long count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | { |
| 523 | int value; |
| 524 | int remain = count; |
| 525 | int lcd_out = -1; |
| 526 | int crt_out = -1; |
| 527 | int tv_out = -1; |
| 528 | u32 hci_result; |
Al Viro | b4482a4 | 2007-10-14 19:35:40 +0100 | [diff] [blame] | 529 | u32 video_out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | |
| 531 | /* scan expression. Multiple expressions may be delimited with ; |
| 532 | * |
| 533 | * NOTE: to keep scanning simple, invalid fields are ignored |
| 534 | */ |
| 535 | while (remain) { |
| 536 | if (sscanf(buffer, " lcd_out : %i", &value) == 1) |
| 537 | lcd_out = value & 1; |
| 538 | else if (sscanf(buffer, " crt_out : %i", &value) == 1) |
| 539 | crt_out = value & 1; |
| 540 | else if (sscanf(buffer, " tv_out : %i", &value) == 1) |
| 541 | tv_out = value & 1; |
| 542 | /* advance to one character past the next ; */ |
| 543 | do { |
| 544 | ++buffer; |
| 545 | --remain; |
| 546 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 547 | while (remain && *(buffer - 1) != ';'); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | } |
| 549 | |
| 550 | hci_read1(HCI_VIDEO_OUT, &video_out, &hci_result); |
| 551 | if (hci_result == HCI_SUCCESS) { |
Harvey Harrison | 9e113e0 | 2008-09-22 14:37:29 -0700 | [diff] [blame] | 552 | unsigned int new_video_out = video_out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | if (lcd_out != -1) |
| 554 | _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out); |
| 555 | if (crt_out != -1) |
| 556 | _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out); |
| 557 | if (tv_out != -1) |
| 558 | _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out); |
| 559 | /* To avoid unnecessary video disruption, only write the new |
| 560 | * video setting if something changed. */ |
| 561 | if (new_video_out != video_out) |
| 562 | write_acpi_int(METHOD_VIDEO_OUT, new_video_out); |
| 563 | } else { |
| 564 | return -EFAULT; |
| 565 | } |
| 566 | |
| 567 | return count; |
| 568 | } |
| 569 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 570 | static char *read_fan(char *p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | { |
| 572 | u32 hci_result; |
| 573 | u32 value; |
| 574 | |
| 575 | hci_read1(HCI_FAN, &value, &hci_result); |
| 576 | if (hci_result == HCI_SUCCESS) { |
| 577 | p += sprintf(p, "running: %d\n", (value > 0)); |
| 578 | p += sprintf(p, "force_on: %d\n", force_fan); |
| 579 | } else { |
| 580 | printk(MY_ERR "Error reading fan status\n"); |
| 581 | } |
| 582 | |
| 583 | return p; |
| 584 | } |
| 585 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 586 | static unsigned long write_fan(const char *buffer, unsigned long count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | { |
| 588 | int value; |
| 589 | u32 hci_result; |
| 590 | |
| 591 | if (sscanf(buffer, " force_on : %i", &value) == 1 && |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 592 | value >= 0 && value <= 1) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | hci_write1(HCI_FAN, value, &hci_result); |
| 594 | if (hci_result != HCI_SUCCESS) |
| 595 | return -EFAULT; |
| 596 | else |
| 597 | force_fan = value; |
| 598 | } else { |
| 599 | return -EINVAL; |
| 600 | } |
| 601 | |
| 602 | return count; |
| 603 | } |
| 604 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 605 | static char *read_keys(char *p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | { |
| 607 | u32 hci_result; |
| 608 | u32 value; |
| 609 | |
| 610 | if (!key_event_valid) { |
| 611 | hci_read1(HCI_SYSTEM_EVENT, &value, &hci_result); |
| 612 | if (hci_result == HCI_SUCCESS) { |
| 613 | key_event_valid = 1; |
| 614 | last_key_event = value; |
| 615 | } else if (hci_result == HCI_EMPTY) { |
| 616 | /* better luck next time */ |
| 617 | } else if (hci_result == HCI_NOT_SUPPORTED) { |
| 618 | /* This is a workaround for an unresolved issue on |
| 619 | * some machines where system events sporadically |
| 620 | * become disabled. */ |
| 621 | hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result); |
| 622 | printk(MY_NOTICE "Re-enabled hotkeys\n"); |
| 623 | } else { |
| 624 | printk(MY_ERR "Error reading hotkey status\n"); |
| 625 | goto end; |
| 626 | } |
| 627 | } |
| 628 | |
| 629 | p += sprintf(p, "hotkey_ready: %d\n", key_event_valid); |
| 630 | p += sprintf(p, "hotkey: 0x%04x\n", last_key_event); |
| 631 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 632 | end: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | return p; |
| 634 | } |
| 635 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 636 | static unsigned long write_keys(const char *buffer, unsigned long count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | { |
| 638 | int value; |
| 639 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 640 | if (sscanf(buffer, " hotkey_ready : %i", &value) == 1 && value == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 641 | key_event_valid = 0; |
| 642 | } else { |
| 643 | return -EINVAL; |
| 644 | } |
| 645 | |
| 646 | return count; |
| 647 | } |
| 648 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 649 | static char *read_version(char *p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | { |
| 651 | p += sprintf(p, "driver: %s\n", TOSHIBA_ACPI_VERSION); |
| 652 | p += sprintf(p, "proc_interface: %d\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 653 | PROC_INTERFACE_VERSION); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 654 | return p; |
| 655 | } |
| 656 | |
| 657 | /* proc and module init |
| 658 | */ |
| 659 | |
| 660 | #define PROC_TOSHIBA "toshiba" |
| 661 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 662 | static ProcItem proc_items[] = { |
| 663 | {"lcd", read_lcd, write_lcd}, |
| 664 | {"video", read_video, write_video}, |
| 665 | {"fan", read_fan, write_fan}, |
| 666 | {"keys", read_keys, write_keys}, |
| 667 | {"version", read_version, NULL}, |
| 668 | {NULL} |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | }; |
| 670 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 671 | static acpi_status __init add_device(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 673 | struct proc_dir_entry *proc; |
| 674 | ProcItem *item; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 676 | for (item = proc_items; item->name; ++item) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 677 | proc = create_proc_read_entry(item->name, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 678 | S_IFREG | S_IRUGO | S_IWUSR, |
| 679 | toshiba_proc_dir, |
| 680 | (read_proc_t *) dispatch_read, |
| 681 | item); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | if (proc) |
| 683 | proc->owner = THIS_MODULE; |
| 684 | if (proc && item->write_func) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 685 | proc->write_proc = (write_proc_t *) dispatch_write; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | } |
| 687 | |
| 688 | return AE_OK; |
| 689 | } |
| 690 | |
Randy Dunlap | b1d93de | 2007-06-16 10:16:02 -0700 | [diff] [blame] | 691 | static acpi_status remove_device(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 693 | ProcItem *item; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | |
| 695 | for (item = proc_items; item->name; ++item) |
| 696 | remove_proc_entry(item->name, toshiba_proc_dir); |
| 697 | return AE_OK; |
| 698 | } |
| 699 | |
Richard Purdie | 599a52d | 2007-02-10 23:07:48 +0000 | [diff] [blame] | 700 | static struct backlight_ops toshiba_backlight_data = { |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 701 | .get_brightness = get_lcd, |
| 702 | .update_status = set_lcd_status, |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 703 | }; |
| 704 | |
Sam Ravnborg | b2b77b2 | 2007-06-01 00:47:12 -0700 | [diff] [blame] | 705 | static void toshiba_acpi_exit(void) |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 706 | { |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 707 | if (toshiba_acpi.poll_dev) { |
| 708 | input_unregister_polled_device(toshiba_acpi.poll_dev); |
| 709 | input_free_polled_device(toshiba_acpi.poll_dev); |
| 710 | } |
| 711 | |
| 712 | if (toshiba_acpi.rfk_dev) |
| 713 | rfkill_unregister(toshiba_acpi.rfk_dev); |
| 714 | |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 715 | if (toshiba_backlight_device) |
| 716 | backlight_device_unregister(toshiba_backlight_device); |
| 717 | |
| 718 | remove_device(); |
| 719 | |
| 720 | if (toshiba_proc_dir) |
| 721 | remove_proc_entry(PROC_TOSHIBA, acpi_root_dir); |
| 722 | |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 723 | platform_device_unregister(toshiba_acpi.p_dev); |
| 724 | |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 725 | return; |
| 726 | } |
| 727 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 728 | static int __init toshiba_acpi_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | { |
| 730 | acpi_status status = AE_OK; |
| 731 | u32 hci_result; |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 732 | bool bt_present; |
| 733 | bool bt_on; |
| 734 | bool radio_on; |
| 735 | int ret = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 736 | |
| 737 | if (acpi_disabled) |
| 738 | return -ENODEV; |
Luming Yu | fb9802f | 2005-03-18 18:03:45 -0500 | [diff] [blame] | 739 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | /* simple device detection: look for HCI method */ |
| 741 | if (is_valid_acpi_path(METHOD_HCI_1)) |
| 742 | method_hci = METHOD_HCI_1; |
| 743 | else if (is_valid_acpi_path(METHOD_HCI_2)) |
| 744 | method_hci = METHOD_HCI_2; |
| 745 | else |
| 746 | return -ENODEV; |
| 747 | |
| 748 | printk(MY_INFO "Toshiba Laptop ACPI Extras version %s\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 749 | TOSHIBA_ACPI_VERSION); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 750 | printk(MY_INFO " HCI method: %s\n", method_hci); |
| 751 | |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 752 | mutex_init(&toshiba_acpi.mutex); |
| 753 | |
| 754 | toshiba_acpi.p_dev = platform_device_register_simple("toshiba_acpi", |
| 755 | -1, NULL, 0); |
| 756 | if (IS_ERR(toshiba_acpi.p_dev)) { |
| 757 | ret = PTR_ERR(toshiba_acpi.p_dev); |
| 758 | printk(MY_ERR "unable to register platform device\n"); |
| 759 | toshiba_acpi.p_dev = NULL; |
| 760 | toshiba_acpi_exit(); |
| 761 | return ret; |
| 762 | } |
| 763 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | force_fan = 0; |
| 765 | key_event_valid = 0; |
| 766 | |
| 767 | /* enable event fifo */ |
| 768 | hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result); |
| 769 | |
| 770 | toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir); |
| 771 | if (!toshiba_proc_dir) { |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 772 | toshiba_acpi_exit(); |
| 773 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | } else { |
| 775 | toshiba_proc_dir->owner = THIS_MODULE; |
| 776 | status = add_device(); |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 777 | if (ACPI_FAILURE(status)) { |
| 778 | toshiba_acpi_exit(); |
| 779 | return -ENODEV; |
| 780 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 781 | } |
| 782 | |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 783 | toshiba_backlight_device = backlight_device_register("toshiba", |
| 784 | &toshiba_acpi.p_dev->dev, |
Yu Luming | 519ab5f | 2006-12-19 12:56:15 -0800 | [diff] [blame] | 785 | NULL, |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 786 | &toshiba_backlight_data); |
| 787 | if (IS_ERR(toshiba_backlight_device)) { |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 788 | ret = PTR_ERR(toshiba_backlight_device); |
Andrey Borzenkov | 1299342 | 2007-11-14 16:58:28 -0800 | [diff] [blame] | 789 | |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 790 | printk(KERN_ERR "Could not register toshiba backlight device\n"); |
| 791 | toshiba_backlight_device = NULL; |
| 792 | toshiba_acpi_exit(); |
Andrey Borzenkov | 1299342 | 2007-11-14 16:58:28 -0800 | [diff] [blame] | 793 | return ret; |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 794 | } |
Richard Purdie | 599a52d | 2007-02-10 23:07:48 +0000 | [diff] [blame] | 795 | toshiba_backlight_device->props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1; |
Holger Macht | c926355 | 2006-10-20 14:30:29 -0700 | [diff] [blame] | 796 | |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 797 | /* Register rfkill switch for Bluetooth */ |
| 798 | if (hci_get_bt_present(&bt_present) == HCI_SUCCESS && bt_present) { |
| 799 | toshiba_acpi.rfk_dev = rfkill_allocate(&toshiba_acpi.p_dev->dev, |
| 800 | RFKILL_TYPE_BLUETOOTH); |
| 801 | if (!toshiba_acpi.rfk_dev) { |
| 802 | printk(MY_ERR "unable to allocate rfkill device\n"); |
| 803 | toshiba_acpi_exit(); |
| 804 | return -ENOMEM; |
| 805 | } |
| 806 | |
| 807 | toshiba_acpi.rfk_dev->name = toshiba_acpi.bt_name; |
| 808 | toshiba_acpi.rfk_dev->toggle_radio = bt_rfkill_toggle_radio; |
| 809 | toshiba_acpi.rfk_dev->user_claim_unsupported = 1; |
| 810 | toshiba_acpi.rfk_dev->data = &toshiba_acpi; |
| 811 | |
| 812 | if (hci_get_bt_on(&bt_on) == HCI_SUCCESS && bt_on) { |
| 813 | toshiba_acpi.rfk_dev->state = RFKILL_STATE_UNBLOCKED; |
| 814 | } else if (hci_get_radio_state(&radio_on) == HCI_SUCCESS && |
| 815 | radio_on) { |
| 816 | toshiba_acpi.rfk_dev->state = RFKILL_STATE_SOFT_BLOCKED; |
| 817 | } else { |
| 818 | toshiba_acpi.rfk_dev->state = RFKILL_STATE_HARD_BLOCKED; |
| 819 | } |
| 820 | |
| 821 | ret = rfkill_register(toshiba_acpi.rfk_dev); |
| 822 | if (ret) { |
| 823 | printk(MY_ERR "unable to register rfkill device\n"); |
| 824 | toshiba_acpi_exit(); |
| 825 | return -ENOMEM; |
| 826 | } |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 827 | |
Frederik Deweerdt | 38aefbc | 2008-12-15 13:54:19 -0800 | [diff] [blame^] | 828 | /* Register input device for kill switch */ |
| 829 | toshiba_acpi.poll_dev = input_allocate_polled_device(); |
| 830 | if (!toshiba_acpi.poll_dev) { |
| 831 | printk(MY_ERR |
| 832 | "unable to allocate kill-switch input device\n"); |
| 833 | toshiba_acpi_exit(); |
| 834 | return -ENOMEM; |
| 835 | } |
| 836 | toshiba_acpi.poll_dev->private = &toshiba_acpi; |
| 837 | toshiba_acpi.poll_dev->poll = bt_poll_rfkill; |
| 838 | toshiba_acpi.poll_dev->poll_interval = 1000; /* msecs */ |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 839 | |
Frederik Deweerdt | 38aefbc | 2008-12-15 13:54:19 -0800 | [diff] [blame^] | 840 | toshiba_acpi.poll_dev->input->name = toshiba_acpi.rfk_name; |
| 841 | toshiba_acpi.poll_dev->input->id.bustype = BUS_HOST; |
| 842 | /* Toshiba USB ID */ |
| 843 | toshiba_acpi.poll_dev->input->id.vendor = 0x0930; |
| 844 | set_bit(EV_SW, toshiba_acpi.poll_dev->input->evbit); |
| 845 | set_bit(SW_RFKILL_ALL, toshiba_acpi.poll_dev->input->swbit); |
| 846 | input_report_switch(toshiba_acpi.poll_dev->input, |
| 847 | SW_RFKILL_ALL, TRUE); |
| 848 | input_sync(toshiba_acpi.poll_dev->input); |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 849 | |
Frederik Deweerdt | 38aefbc | 2008-12-15 13:54:19 -0800 | [diff] [blame^] | 850 | ret = input_register_polled_device(toshiba_acpi.poll_dev); |
| 851 | if (ret) { |
| 852 | printk(MY_ERR |
| 853 | "unable to register kill-switch input device\n"); |
| 854 | toshiba_acpi_exit(); |
| 855 | return ret; |
| 856 | } |
philipl@overt.org | c41a40c | 2008-08-30 11:57:39 -0400 | [diff] [blame] | 857 | } |
| 858 | |
| 859 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 860 | } |
| 861 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | module_init(toshiba_acpi_init); |
| 863 | module_exit(toshiba_acpi_exit); |