2 * toshiba_acpi.c - Toshiba Laptop ACPI Extras
5 * Copyright (C) 2002-2004 John Belmonte
6 * Copyright (C) 2008 Philip Langdale
7 * Copyright (C) 2010 Pierre Ducroquet
8 * Copyright (C) 2014 Azael Avalos
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 * The devolpment page for this driver is located at
26 * http://memebeam.org/toys/ToshibaAcpiDriver.
29 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
30 * engineering the Windows drivers
31 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
32 * Rob Miller - TV out and hotkeys help
39 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
41 #define TOSHIBA_ACPI_VERSION "0.20"
42 #define PROC_INTERFACE_VERSION 1
44 #include <linux/kernel.h>
45 #include <linux/module.h>
46 #include <linux/init.h>
47 #include <linux/types.h>
48 #include <linux/proc_fs.h>
49 #include <linux/seq_file.h>
50 #include <linux/backlight.h>
51 #include <linux/rfkill.h>
52 #include <linux/input.h>
53 #include <linux/input/sparse-keymap.h>
54 #include <linux/leds.h>
55 #include <linux/slab.h>
56 #include <linux/workqueue.h>
57 #include <linux/i8042.h>
58 #include <linux/acpi.h>
59 #include <linux/dmi.h>
60 #include <asm/uaccess.h>
62 MODULE_AUTHOR("John Belmonte");
63 MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
64 MODULE_LICENSE("GPL");
66 #define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
68 /* Scan code for Fn key on TOS1900 models */
69 #define TOS1900_FN_SCAN 0x6e
71 /* Toshiba ACPI method paths */
72 #define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
74 /* Toshiba HCI interface definitions
76 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
77 * be uniform across all their models. Ideally we would just call
78 * dedicated ACPI methods instead of using this primitive interface.
79 * However the ACPI methods seem to be incomplete in some areas (for
80 * example they allow setting, but not reading, the LCD brightness value),
81 * so this is still useful.
83 * SCI stands for "System Configuration Interface" which aim is to
84 * conceal differences in hardware between different models.
90 #define HCI_SET 0xff00
91 #define HCI_GET 0xfe00
92 #define SCI_OPEN 0xf100
93 #define SCI_CLOSE 0xf200
94 #define SCI_GET 0xf300
95 #define SCI_SET 0xf400
98 #define HCI_SUCCESS 0x0000
99 #define HCI_FAILURE 0x1000
100 #define HCI_NOT_SUPPORTED 0x8000
101 #define HCI_EMPTY 0x8c00
102 #define HCI_DATA_NOT_AVAILABLE 0x8d20
103 #define HCI_NOT_INITIALIZED 0x8d50
104 #define SCI_OPEN_CLOSE_OK 0x0044
105 #define SCI_ALREADY_OPEN 0x8100
106 #define SCI_NOT_OPENED 0x8200
107 #define SCI_INPUT_DATA_ERROR 0x8300
108 #define SCI_NOT_PRESENT 0x8600
111 #define HCI_FAN 0x0004
112 #define HCI_TR_BACKLIGHT 0x0005
113 #define HCI_SYSTEM_EVENT 0x0016
114 #define HCI_VIDEO_OUT 0x001c
115 #define HCI_HOTKEY_EVENT 0x001e
116 #define HCI_LCD_BRIGHTNESS 0x002a
117 #define HCI_WIRELESS 0x0056
118 #define HCI_ACCELEROMETER 0x006d
119 #define HCI_KBD_ILLUMINATION 0x0095
120 #define HCI_ECO_MODE 0x0097
121 #define HCI_ACCELEROMETER2 0x00a6
122 #define SCI_ILLUMINATION 0x014e
123 #define SCI_KBD_ILLUM_STATUS 0x015c
124 #define SCI_TOUCHPAD 0x050e
126 /* field definitions */
127 #define HCI_ACCEL_MASK 0x7fff
128 #define HCI_HOTKEY_DISABLE 0x0b
129 #define HCI_HOTKEY_ENABLE 0x09
130 #define HCI_LCD_BRIGHTNESS_BITS 3
131 #define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
132 #define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
133 #define HCI_MISC_SHIFT 0x10
134 #define HCI_VIDEO_OUT_LCD 0x1
135 #define HCI_VIDEO_OUT_CRT 0x2
136 #define HCI_VIDEO_OUT_TV 0x4
137 #define HCI_WIRELESS_KILL_SWITCH 0x01
138 #define HCI_WIRELESS_BT_PRESENT 0x0f
139 #define HCI_WIRELESS_BT_ATTACH 0x40
140 #define HCI_WIRELESS_BT_POWER 0x80
141 #define SCI_KBD_MODE_FNZ 0x1
142 #define SCI_KBD_MODE_AUTO 0x2
144 struct toshiba_acpi_dev {
145 struct acpi_device *acpi_dev;
146 const char *method_hci;
147 struct rfkill *bt_rfk;
148 struct input_dev *hotkey_dev;
149 struct work_struct hotkey_work;
150 struct backlight_device *backlight_dev;
151 struct led_classdev led_dev;
152 struct led_classdev kbd_led;
153 struct led_classdev eco_led;
161 unsigned int illumination_supported:1;
162 unsigned int video_supported:1;
163 unsigned int fan_supported:1;
164 unsigned int system_event_supported:1;
165 unsigned int ntfy_supported:1;
166 unsigned int info_supported:1;
167 unsigned int tr_backlight_supported:1;
168 unsigned int kbd_illum_supported:1;
169 unsigned int kbd_led_registered:1;
170 unsigned int touchpad_supported:1;
171 unsigned int eco_supported:1;
172 unsigned int accelerometer_supported:1;
173 unsigned int sysfs_created:1;
178 static struct toshiba_acpi_dev *toshiba_acpi;
180 static const struct acpi_device_id toshiba_device_ids[] = {
186 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
188 static const struct key_entry toshiba_acpi_keymap[] = {
189 { KE_KEY, 0x9e, { KEY_RFKILL } },
190 { KE_KEY, 0x101, { KEY_MUTE } },
191 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
192 { KE_KEY, 0x103, { KEY_ZOOMIN } },
193 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
194 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
195 { KE_KEY, 0x13b, { KEY_COFFEE } },
196 { KE_KEY, 0x13c, { KEY_BATTERY } },
197 { KE_KEY, 0x13d, { KEY_SLEEP } },
198 { KE_KEY, 0x13e, { KEY_SUSPEND } },
199 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
200 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
201 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
202 { KE_KEY, 0x142, { KEY_WLAN } },
203 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
204 { KE_KEY, 0x17f, { KEY_FN } },
205 { KE_KEY, 0xb05, { KEY_PROG2 } },
206 { KE_KEY, 0xb06, { KEY_WWW } },
207 { KE_KEY, 0xb07, { KEY_MAIL } },
208 { KE_KEY, 0xb30, { KEY_STOP } },
209 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
210 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
211 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
212 { KE_KEY, 0xb5a, { KEY_MEDIA } },
213 { KE_IGNORE, 0x1430, { KEY_RESERVED } },
217 /* alternative keymap */
218 static const struct dmi_system_id toshiba_alt_keymap_dmi[] = {
221 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
222 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite M840"),
228 static const struct key_entry toshiba_acpi_alt_keymap[] = {
229 { KE_KEY, 0x157, { KEY_MUTE } },
230 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
231 { KE_KEY, 0x103, { KEY_ZOOMIN } },
232 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
233 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
234 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
235 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
236 { KE_KEY, 0x158, { KEY_WLAN } },
237 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
244 static __inline__ void _set_bit(u32 * word, u32 mask, int value)
246 *word = (*word & ~mask) | (mask * value);
249 /* acpi interface wrappers
252 static int write_acpi_int(const char *methodName, int val)
256 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
257 return (status == AE_OK) ? 0 : -EIO;
260 /* Perform a raw HCI call. Here we don't care about input or output buffer
263 static acpi_status hci_raw(struct toshiba_acpi_dev *dev,
264 const u32 in[HCI_WORDS], u32 out[HCI_WORDS])
266 struct acpi_object_list params;
267 union acpi_object in_objs[HCI_WORDS];
268 struct acpi_buffer results;
269 union acpi_object out_objs[HCI_WORDS + 1];
273 params.count = HCI_WORDS;
274 params.pointer = in_objs;
275 for (i = 0; i < HCI_WORDS; ++i) {
276 in_objs[i].type = ACPI_TYPE_INTEGER;
277 in_objs[i].integer.value = in[i];
280 results.length = sizeof(out_objs);
281 results.pointer = out_objs;
283 status = acpi_evaluate_object(dev->acpi_dev->handle,
284 (char *)dev->method_hci, ¶ms,
286 if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) {
287 for (i = 0; i < out_objs->package.count; ++i) {
288 out[i] = out_objs->package.elements[i].integer.value;
295 /* common hci tasks (get or set one or two value)
297 * In addition to the ACPI status, the HCI system returns a result which
298 * may be useful (such as "not supported").
301 static acpi_status hci_write1(struct toshiba_acpi_dev *dev, u32 reg,
302 u32 in1, u32 *result)
304 u32 in[HCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
306 acpi_status status = hci_raw(dev, in, out);
307 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
311 static acpi_status hci_read1(struct toshiba_acpi_dev *dev, u32 reg,
312 u32 *out1, u32 *result)
314 u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
316 acpi_status status = hci_raw(dev, in, out);
318 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
322 static acpi_status hci_write2(struct toshiba_acpi_dev *dev, u32 reg,
323 u32 in1, u32 in2, u32 *result)
325 u32 in[HCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 };
327 acpi_status status = hci_raw(dev, in, out);
328 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
332 static acpi_status hci_read2(struct toshiba_acpi_dev *dev, u32 reg,
333 u32 *out1, u32 *out2, u32 *result)
335 u32 in[HCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 };
337 acpi_status status = hci_raw(dev, in, out);
340 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
347 static int sci_open(struct toshiba_acpi_dev *dev)
349 u32 in[HCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
353 status = hci_raw(dev, in, out);
354 if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
355 pr_err("ACPI call to open SCI failed\n");
359 if (out[0] == SCI_OPEN_CLOSE_OK) {
361 } else if (out[0] == SCI_ALREADY_OPEN) {
362 pr_info("Toshiba SCI already opened\n");
364 } else if (out[0] == SCI_NOT_PRESENT) {
365 pr_info("Toshiba SCI is not present\n");
371 static void sci_close(struct toshiba_acpi_dev *dev)
373 u32 in[HCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
377 status = hci_raw(dev, in, out);
378 if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
379 pr_err("ACPI call to close SCI failed\n");
383 if (out[0] == SCI_OPEN_CLOSE_OK)
385 else if (out[0] == SCI_NOT_OPENED)
386 pr_info("Toshiba SCI not opened\n");
387 else if (out[0] == SCI_NOT_PRESENT)
388 pr_info("Toshiba SCI is not present\n");
391 static acpi_status sci_read(struct toshiba_acpi_dev *dev, u32 reg,
392 u32 *out1, u32 *result)
394 u32 in[HCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
396 acpi_status status = hci_raw(dev, in, out);
398 *result = (ACPI_SUCCESS(status)) ? out[0] : HCI_FAILURE;
402 static acpi_status sci_write(struct toshiba_acpi_dev *dev, u32 reg,
403 u32 in1, u32 *result)
405 u32 in[HCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
407 acpi_status status = hci_raw(dev, in, out);
408 *result = (ACPI_SUCCESS(status)) ? out[0] : HCI_FAILURE;
412 /* Illumination support */
413 static int toshiba_illumination_available(struct toshiba_acpi_dev *dev)
415 u32 in[HCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
422 status = hci_raw(dev, in, out);
424 if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
425 pr_err("ACPI call to query Illumination support failed\n");
427 } else if (out[0] == HCI_NOT_SUPPORTED || out[1] != 1) {
428 pr_info("Illumination device not available\n");
435 static void toshiba_illumination_set(struct led_classdev *cdev,
436 enum led_brightness brightness)
438 struct toshiba_acpi_dev *dev = container_of(cdev,
439 struct toshiba_acpi_dev, led_dev);
443 /* First request : initialize communication. */
447 /* Switch the illumination on/off */
448 state = brightness ? 1 : 0;
449 status = sci_write(dev, SCI_ILLUMINATION, state, &result);
451 if (ACPI_FAILURE(status)) {
452 pr_err("ACPI call for illumination failed\n");
454 } else if (result == HCI_NOT_SUPPORTED) {
455 pr_info("Illumination not supported\n");
460 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
462 struct toshiba_acpi_dev *dev = container_of(cdev,
463 struct toshiba_acpi_dev, led_dev);
467 /*Â First request : initialize communication. */
471 /* Check the illumination */
472 status = sci_read(dev, SCI_ILLUMINATION, &state, &result);
474 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
475 pr_err("ACPI call for illumination failed\n");
477 } else if (result == HCI_NOT_SUPPORTED) {
478 pr_info("Illumination not supported\n");
482 return state ? LED_FULL : LED_OFF;
485 /* KBD Illumination */
486 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
494 status = sci_write(dev, SCI_KBD_ILLUM_STATUS, time, &result);
496 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
497 pr_err("ACPI call to set KBD backlight status failed\n");
499 } else if (result == HCI_NOT_SUPPORTED) {
500 pr_info("Keyboard backlight status not supported\n");
507 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
515 status = sci_read(dev, SCI_KBD_ILLUM_STATUS, time, &result);
517 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
518 pr_err("ACPI call to get KBD backlight status failed\n");
520 } else if (result == HCI_NOT_SUPPORTED) {
521 pr_info("Keyboard backlight status not supported\n");
528 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
530 struct toshiba_acpi_dev *dev = container_of(cdev,
531 struct toshiba_acpi_dev, kbd_led);
535 /* Check the keyboard backlight state */
536 status = hci_read1(dev, HCI_KBD_ILLUMINATION, &state, &result);
537 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
538 pr_err("ACPI call to get the keyboard backlight failed\n");
540 } else if (result == HCI_NOT_SUPPORTED) {
541 pr_info("Keyboard backlight not supported\n");
545 return state ? LED_FULL : LED_OFF;
548 static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
549 enum led_brightness brightness)
551 struct toshiba_acpi_dev *dev = container_of(cdev,
552 struct toshiba_acpi_dev, kbd_led);
556 /* Set the keyboard backlight state */
557 state = brightness ? 1 : 0;
558 status = hci_write1(dev, HCI_KBD_ILLUMINATION, state, &result);
559 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
560 pr_err("ACPI call to set KBD Illumination mode failed\n");
562 } else if (result == HCI_NOT_SUPPORTED) {
563 pr_info("Keyboard backlight not supported\n");
568 /* TouchPad support */
569 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
577 status = sci_write(dev, SCI_TOUCHPAD, state, &result);
579 if (ACPI_FAILURE(status)) {
580 pr_err("ACPI call to set the touchpad failed\n");
582 } else if (result == HCI_NOT_SUPPORTED) {
589 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
597 status = sci_read(dev, SCI_TOUCHPAD, state, &result);
599 if (ACPI_FAILURE(status)) {
600 pr_err("ACPI call to query the touchpad failed\n");
602 } else if (result == HCI_NOT_SUPPORTED) {
609 /* Eco Mode support */
610 static int toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
613 u32 in[HCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
616 status = hci_raw(dev, in, out);
617 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
618 pr_info("ACPI call to get ECO led failed\n");
625 static enum led_brightness toshiba_eco_mode_get_status(struct led_classdev *cdev)
627 struct toshiba_acpi_dev *dev = container_of(cdev,
628 struct toshiba_acpi_dev, eco_led);
629 u32 in[HCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
633 status = hci_raw(dev, in, out);
634 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
635 pr_err("ACPI call to get ECO led failed\n");
639 return out[2] ? LED_FULL : LED_OFF;
642 static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
643 enum led_brightness brightness)
645 struct toshiba_acpi_dev *dev = container_of(cdev,
646 struct toshiba_acpi_dev, eco_led);
647 u32 in[HCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
651 /* Switch the Eco Mode led on/off */
652 in[2] = (brightness) ? 1 : 0;
653 status = hci_raw(dev, in, out);
654 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
655 pr_err("ACPI call to set ECO led failed\n");
660 /* Accelerometer support */
661 static int toshiba_accelerometer_supported(struct toshiba_acpi_dev *dev)
663 u32 in[HCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
667 /* Check if the accelerometer call exists,
668 * this call also serves as initialization
670 status = hci_raw(dev, in, out);
671 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
672 pr_err("ACPI call to query the accelerometer failed\n");
674 } else if (out[0] == HCI_DATA_NOT_AVAILABLE ||
675 out[0] == HCI_NOT_INITIALIZED) {
676 pr_err("Accelerometer not initialized\n");
678 } else if (out[0] == HCI_NOT_SUPPORTED) {
679 pr_info("Accelerometer not supported\n");
686 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
689 u32 in[HCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
693 /* Check the Accelerometer status */
694 status = hci_raw(dev, in, out);
695 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
696 pr_err("ACPI call to query the accelerometer failed\n");
706 /* Bluetooth rfkill handlers */
708 static u32 hci_get_bt_present(struct toshiba_acpi_dev *dev, bool *present)
715 hci_read2(dev, HCI_WIRELESS, &value, &value2, &hci_result);
716 if (hci_result == HCI_SUCCESS)
717 *present = (value & HCI_WIRELESS_BT_PRESENT) ? true : false;
722 static u32 hci_get_radio_state(struct toshiba_acpi_dev *dev, bool *radio_state)
729 hci_read2(dev, HCI_WIRELESS, &value, &value2, &hci_result);
731 *radio_state = value & HCI_WIRELESS_KILL_SWITCH;
735 static int bt_rfkill_set_block(void *data, bool blocked)
737 struct toshiba_acpi_dev *dev = data;
738 u32 result1, result2;
743 value = (blocked == false);
745 mutex_lock(&dev->mutex);
746 if (hci_get_radio_state(dev, &radio_state) != HCI_SUCCESS) {
756 hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_POWER, &result1);
757 hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_ATTACH, &result2);
759 if (result1 != HCI_SUCCESS || result2 != HCI_SUCCESS)
764 mutex_unlock(&dev->mutex);
768 static void bt_rfkill_poll(struct rfkill *rfkill, void *data)
773 struct toshiba_acpi_dev *dev = data;
775 mutex_lock(&dev->mutex);
777 hci_result = hci_get_radio_state(dev, &value);
778 if (hci_result != HCI_SUCCESS) {
779 /* Can't do anything useful */
780 mutex_unlock(&dev->mutex);
784 new_rfk_state = value;
786 mutex_unlock(&dev->mutex);
788 if (rfkill_set_hw_state(rfkill, !new_rfk_state))
789 bt_rfkill_set_block(data, true);
792 static const struct rfkill_ops toshiba_rfk_ops = {
793 .set_block = bt_rfkill_set_block,
794 .poll = bt_rfkill_poll,
797 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, bool *enabled)
802 hci_read1(dev, HCI_TR_BACKLIGHT, &status, &hci_result);
804 return hci_result == HCI_SUCCESS ? 0 : -EIO;
807 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, bool enable)
812 hci_write1(dev, HCI_TR_BACKLIGHT, value, &hci_result);
813 return hci_result == HCI_SUCCESS ? 0 : -EIO;
816 static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ;
818 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
824 if (dev->tr_backlight_supported) {
826 int ret = get_tr_backlight_status(dev, &enabled);
834 hci_read1(dev, HCI_LCD_BRIGHTNESS, &value, &hci_result);
835 if (hci_result == HCI_SUCCESS)
836 return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT);
841 static int get_lcd_brightness(struct backlight_device *bd)
843 struct toshiba_acpi_dev *dev = bl_get_data(bd);
844 return __get_lcd_brightness(dev);
847 static int lcd_proc_show(struct seq_file *m, void *v)
849 struct toshiba_acpi_dev *dev = m->private;
853 if (!dev->backlight_dev)
856 levels = dev->backlight_dev->props.max_brightness + 1;
857 value = get_lcd_brightness(dev->backlight_dev);
859 seq_printf(m, "brightness: %d\n", value);
860 seq_printf(m, "brightness_levels: %d\n", levels);
864 pr_err("Error reading LCD brightness\n");
868 static int lcd_proc_open(struct inode *inode, struct file *file)
870 return single_open(file, lcd_proc_show, PDE_DATA(inode));
873 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
877 if (dev->tr_backlight_supported) {
878 bool enable = !value;
879 int ret = set_tr_backlight_status(dev, enable);
886 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
887 hci_write1(dev, HCI_LCD_BRIGHTNESS, value, &hci_result);
888 return hci_result == HCI_SUCCESS ? 0 : -EIO;
891 static int set_lcd_status(struct backlight_device *bd)
893 struct toshiba_acpi_dev *dev = bl_get_data(bd);
894 return set_lcd_brightness(dev, bd->props.brightness);
897 static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
898 size_t count, loff_t *pos)
900 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
905 int levels = dev->backlight_dev->props.max_brightness + 1;
907 len = min(count, sizeof(cmd) - 1);
908 if (copy_from_user(cmd, buf, len))
912 if (sscanf(cmd, " brightness : %i", &value) == 1 &&
913 value >= 0 && value < levels) {
914 ret = set_lcd_brightness(dev, value);
923 static const struct file_operations lcd_proc_fops = {
924 .owner = THIS_MODULE,
925 .open = lcd_proc_open,
928 .release = single_release,
929 .write = lcd_proc_write,
932 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
936 hci_read1(dev, HCI_VIDEO_OUT, status, &hci_result);
937 return hci_result == HCI_SUCCESS ? 0 : -EIO;
940 static int video_proc_show(struct seq_file *m, void *v)
942 struct toshiba_acpi_dev *dev = m->private;
946 ret = get_video_status(dev, &value);
948 int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
949 int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
950 int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
951 seq_printf(m, "lcd_out: %d\n", is_lcd);
952 seq_printf(m, "crt_out: %d\n", is_crt);
953 seq_printf(m, "tv_out: %d\n", is_tv);
959 static int video_proc_open(struct inode *inode, struct file *file)
961 return single_open(file, video_proc_show, PDE_DATA(inode));
964 static ssize_t video_proc_write(struct file *file, const char __user *buf,
965 size_t count, loff_t *pos)
967 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
977 cmd = kmalloc(count + 1, GFP_KERNEL);
980 if (copy_from_user(cmd, buf, count)) {
988 /* scan expression. Multiple expressions may be delimited with ;
990 * NOTE: to keep scanning simple, invalid fields are ignored
993 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
995 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
997 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
999 /* advance to one character past the next ; */
1004 while (remain && *(buffer - 1) != ';');
1009 ret = get_video_status(dev, &video_out);
1011 unsigned int new_video_out = video_out;
1013 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1015 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1017 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1018 /* To avoid unnecessary video disruption, only write the new
1019 * video setting if something changed. */
1020 if (new_video_out != video_out)
1021 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1024 return ret ? ret : count;
1027 static const struct file_operations video_proc_fops = {
1028 .owner = THIS_MODULE,
1029 .open = video_proc_open,
1031 .llseek = seq_lseek,
1032 .release = single_release,
1033 .write = video_proc_write,
1036 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1040 hci_read1(dev, HCI_FAN, status, &hci_result);
1041 return hci_result == HCI_SUCCESS ? 0 : -EIO;
1044 static int fan_proc_show(struct seq_file *m, void *v)
1046 struct toshiba_acpi_dev *dev = m->private;
1050 ret = get_fan_status(dev, &value);
1052 seq_printf(m, "running: %d\n", (value > 0));
1053 seq_printf(m, "force_on: %d\n", dev->force_fan);
1059 static int fan_proc_open(struct inode *inode, struct file *file)
1061 return single_open(file, fan_proc_show, PDE_DATA(inode));
1064 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1065 size_t count, loff_t *pos)
1067 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1073 len = min(count, sizeof(cmd) - 1);
1074 if (copy_from_user(cmd, buf, len))
1078 if (sscanf(cmd, " force_on : %i", &value) == 1 &&
1079 value >= 0 && value <= 1) {
1080 hci_write1(dev, HCI_FAN, value, &hci_result);
1081 if (hci_result != HCI_SUCCESS)
1084 dev->force_fan = value;
1092 static const struct file_operations fan_proc_fops = {
1093 .owner = THIS_MODULE,
1094 .open = fan_proc_open,
1096 .llseek = seq_lseek,
1097 .release = single_release,
1098 .write = fan_proc_write,
1101 static int keys_proc_show(struct seq_file *m, void *v)
1103 struct toshiba_acpi_dev *dev = m->private;
1107 if (!dev->key_event_valid && dev->system_event_supported) {
1108 hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result);
1109 if (hci_result == HCI_SUCCESS) {
1110 dev->key_event_valid = 1;
1111 dev->last_key_event = value;
1112 } else if (hci_result == HCI_EMPTY) {
1113 /* better luck next time */
1114 } else if (hci_result == HCI_NOT_SUPPORTED) {
1115 /* This is a workaround for an unresolved issue on
1116 * some machines where system events sporadically
1117 * become disabled. */
1118 hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
1119 pr_notice("Re-enabled hotkeys\n");
1121 pr_err("Error reading hotkey status\n");
1126 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1127 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1131 static int keys_proc_open(struct inode *inode, struct file *file)
1133 return single_open(file, keys_proc_show, PDE_DATA(inode));
1136 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1137 size_t count, loff_t *pos)
1139 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1144 len = min(count, sizeof(cmd) - 1);
1145 if (copy_from_user(cmd, buf, len))
1149 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0) {
1150 dev->key_event_valid = 0;
1158 static const struct file_operations keys_proc_fops = {
1159 .owner = THIS_MODULE,
1160 .open = keys_proc_open,
1162 .llseek = seq_lseek,
1163 .release = single_release,
1164 .write = keys_proc_write,
1167 static int version_proc_show(struct seq_file *m, void *v)
1169 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1170 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1174 static int version_proc_open(struct inode *inode, struct file *file)
1176 return single_open(file, version_proc_show, PDE_DATA(inode));
1179 static const struct file_operations version_proc_fops = {
1180 .owner = THIS_MODULE,
1181 .open = version_proc_open,
1183 .llseek = seq_lseek,
1184 .release = single_release,
1187 /* proc and module init
1190 #define PROC_TOSHIBA "toshiba"
1192 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1194 if (dev->backlight_dev)
1195 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1196 &lcd_proc_fops, dev);
1197 if (dev->video_supported)
1198 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1199 &video_proc_fops, dev);
1200 if (dev->fan_supported)
1201 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1202 &fan_proc_fops, dev);
1203 if (dev->hotkey_dev)
1204 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1205 &keys_proc_fops, dev);
1206 proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1207 &version_proc_fops, dev);
1210 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1212 if (dev->backlight_dev)
1213 remove_proc_entry("lcd", toshiba_proc_dir);
1214 if (dev->video_supported)
1215 remove_proc_entry("video", toshiba_proc_dir);
1216 if (dev->fan_supported)
1217 remove_proc_entry("fan", toshiba_proc_dir);
1218 if (dev->hotkey_dev)
1219 remove_proc_entry("keys", toshiba_proc_dir);
1220 remove_proc_entry("version", toshiba_proc_dir);
1223 static const struct backlight_ops toshiba_backlight_data = {
1224 .options = BL_CORE_SUSPENDRESUME,
1225 .get_brightness = get_lcd_brightness,
1226 .update_status = set_lcd_status,
1233 static ssize_t toshiba_kbd_bl_mode_store(struct device *dev,
1234 struct device_attribute *attr,
1235 const char *buf, size_t count)
1237 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1241 if (sscanf(buf, "%i", &mode) != 1 && (mode != 2 || mode != 1))
1244 /* Set the Keyboard Backlight Mode where:
1245 * Mode - Auto (2) | FN-Z (1)
1246 * Auto - KBD backlight turns off automatically in given time
1247 * FN-Z - KBD backlight "toggles" when hotkey pressed
1249 if (mode != -1 && toshiba->kbd_mode != mode) {
1250 time = toshiba->kbd_time << HCI_MISC_SHIFT;
1251 time = time + toshiba->kbd_mode;
1252 if (toshiba_kbd_illum_status_set(toshiba, time) < 0)
1254 toshiba->kbd_mode = mode;
1260 static ssize_t toshiba_kbd_bl_mode_show(struct device *dev,
1261 struct device_attribute *attr,
1264 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1267 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1270 return sprintf(buf, "%i\n", time & 0x07);
1273 static ssize_t toshiba_kbd_bl_timeout_store(struct device *dev,
1274 struct device_attribute *attr,
1275 const char *buf, size_t count)
1277 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1280 if (sscanf(buf, "%i", &time) != 1 && (time < 0 || time > 60))
1283 /* Set the Keyboard Backlight Timeout: 0-60 seconds */
1284 if (time != -1 && toshiba->kbd_time != time) {
1285 time = time << HCI_MISC_SHIFT;
1286 time = (toshiba->kbd_mode == SCI_KBD_MODE_AUTO) ?
1287 time + 1 : time + 2;
1288 if (toshiba_kbd_illum_status_set(toshiba, time) < 0)
1290 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1296 static ssize_t toshiba_kbd_bl_timeout_show(struct device *dev,
1297 struct device_attribute *attr,
1300 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1303 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1306 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1309 static ssize_t toshiba_touchpad_store(struct device *dev,
1310 struct device_attribute *attr,
1311 const char *buf, size_t count)
1313 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1316 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1317 if (sscanf(buf, "%i", &state) == 1 && (state == 0 || state == 1)) {
1318 if (toshiba_touchpad_set(toshiba, state) < 0)
1325 static ssize_t toshiba_touchpad_show(struct device *dev,
1326 struct device_attribute *attr, char *buf)
1328 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1332 ret = toshiba_touchpad_get(toshiba, &state);
1336 return sprintf(buf, "%i\n", state);
1339 static ssize_t toshiba_position_show(struct device *dev,
1340 struct device_attribute *attr, char *buf)
1342 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1343 u32 xyval, zval, tmp;
1348 ret = toshiba_accelerometer_get(toshiba, &xyval, &zval);
1352 x = xyval & HCI_ACCEL_MASK;
1353 tmp = xyval >> HCI_MISC_SHIFT;
1354 y = tmp & HCI_ACCEL_MASK;
1355 z = zval & HCI_ACCEL_MASK;
1357 return sprintf(buf, "%d %d %d\n", x, y, z);
1360 static DEVICE_ATTR(kbd_backlight_mode, S_IRUGO | S_IWUSR,
1361 toshiba_kbd_bl_mode_show, toshiba_kbd_bl_mode_store);
1362 static DEVICE_ATTR(kbd_backlight_timeout, S_IRUGO | S_IWUSR,
1363 toshiba_kbd_bl_timeout_show, toshiba_kbd_bl_timeout_store);
1364 static DEVICE_ATTR(touchpad, S_IRUGO | S_IWUSR,
1365 toshiba_touchpad_show, toshiba_touchpad_store);
1366 static DEVICE_ATTR(position, S_IRUGO, toshiba_position_show, NULL);
1368 static struct attribute *toshiba_attributes[] = {
1369 &dev_attr_kbd_backlight_mode.attr,
1370 &dev_attr_kbd_backlight_timeout.attr,
1371 &dev_attr_touchpad.attr,
1372 &dev_attr_position.attr,
1376 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
1377 struct attribute *attr, int idx)
1379 struct device *dev = container_of(kobj, struct device, kobj);
1380 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
1383 if (attr == &dev_attr_kbd_backlight_mode.attr)
1384 exists = (drv->kbd_illum_supported) ? true : false;
1385 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
1386 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
1387 else if (attr == &dev_attr_touchpad.attr)
1388 exists = (drv->touchpad_supported) ? true : false;
1389 else if (attr == &dev_attr_position.attr)
1390 exists = (drv->accelerometer_supported) ? true : false;
1392 return exists ? attr->mode : 0;
1395 static struct attribute_group toshiba_attr_group = {
1396 .is_visible = toshiba_sysfs_is_visible,
1397 .attrs = toshiba_attributes,
1400 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
1406 if (unlikely(data == 0xe0))
1409 if ((data & 0x7f) == TOS1900_FN_SCAN) {
1410 schedule_work(&toshiba_acpi->hotkey_work);
1417 static void toshiba_acpi_hotkey_work(struct work_struct *work)
1419 acpi_handle ec_handle = ec_get_handle();
1425 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
1426 if (ACPI_FAILURE(status))
1427 pr_err("ACPI NTFY method execution failed\n");
1431 * Returns hotkey scancode, or < 0 on failure.
1433 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
1435 unsigned long long value;
1438 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
1440 if (ACPI_FAILURE(status)) {
1441 pr_err("ACPI INFO method execution failed\n");
1448 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
1451 if (scancode == 0x100)
1454 /* act on key press; ignore key release */
1455 if (scancode & 0x80)
1458 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
1459 pr_info("Unknown key %x\n", scancode);
1462 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
1465 acpi_handle ec_handle;
1468 const struct key_entry *keymap = toshiba_acpi_keymap;
1470 dev->hotkey_dev = input_allocate_device();
1471 if (!dev->hotkey_dev)
1474 dev->hotkey_dev->name = "Toshiba input device";
1475 dev->hotkey_dev->phys = "toshiba_acpi/input0";
1476 dev->hotkey_dev->id.bustype = BUS_HOST;
1478 if (dmi_check_system(toshiba_alt_keymap_dmi))
1479 keymap = toshiba_acpi_alt_keymap;
1480 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
1485 * For some machines the SCI responsible for providing hotkey
1486 * notification doesn't fire. We can trigger the notification
1487 * whenever the Fn key is pressed using the NTFY method, if
1488 * supported, so if it's present set up an i8042 key filter
1492 ec_handle = ec_get_handle();
1493 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
1494 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
1496 error = i8042_install_filter(toshiba_acpi_i8042_filter);
1498 pr_err("Error installing key filter\n");
1499 goto err_free_keymap;
1502 dev->ntfy_supported = 1;
1506 * Determine hotkey query interface. Prefer using the INFO
1507 * method when it is available.
1509 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
1510 dev->info_supported = 1;
1512 hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
1513 if (hci_result == HCI_SUCCESS)
1514 dev->system_event_supported = 1;
1517 if (!dev->info_supported && !dev->system_event_supported) {
1518 pr_warn("No hotkey query interface found\n");
1519 goto err_remove_filter;
1522 status = acpi_evaluate_object(dev->acpi_dev->handle, "ENAB", NULL, NULL);
1523 if (ACPI_FAILURE(status)) {
1524 pr_info("Unable to enable hotkeys\n");
1526 goto err_remove_filter;
1529 error = input_register_device(dev->hotkey_dev);
1531 pr_info("Unable to register input device\n");
1532 goto err_remove_filter;
1535 hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &hci_result);
1539 if (dev->ntfy_supported)
1540 i8042_remove_filter(toshiba_acpi_i8042_filter);
1542 sparse_keymap_free(dev->hotkey_dev);
1544 input_free_device(dev->hotkey_dev);
1545 dev->hotkey_dev = NULL;
1549 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
1551 struct backlight_properties props;
1557 * Some machines don't support the backlight methods at all, and
1558 * others support it read-only. Either of these is pretty useless,
1559 * so only register the backlight device if the backlight method
1560 * supports both reads and writes.
1562 brightness = __get_lcd_brightness(dev);
1565 ret = set_lcd_brightness(dev, brightness);
1567 pr_debug("Backlight method is read-only, disabling backlight support\n");
1571 /* Determine whether or not BIOS supports transflective backlight */
1572 ret = get_tr_backlight_status(dev, &enabled);
1573 dev->tr_backlight_supported = !ret;
1575 memset(&props, 0, sizeof(props));
1576 props.type = BACKLIGHT_PLATFORM;
1577 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
1579 /* adding an extra level and having 0 change to transflective mode */
1580 if (dev->tr_backlight_supported)
1581 props.max_brightness++;
1583 dev->backlight_dev = backlight_device_register("toshiba",
1584 &dev->acpi_dev->dev,
1586 &toshiba_backlight_data,
1588 if (IS_ERR(dev->backlight_dev)) {
1589 ret = PTR_ERR(dev->backlight_dev);
1590 pr_err("Could not register toshiba backlight device\n");
1591 dev->backlight_dev = NULL;
1595 dev->backlight_dev->props.brightness = brightness;
1599 static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
1601 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
1603 remove_toshiba_proc_entries(dev);
1605 if (dev->sysfs_created)
1606 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
1607 &toshiba_attr_group);
1609 if (dev->ntfy_supported) {
1610 i8042_remove_filter(toshiba_acpi_i8042_filter);
1611 cancel_work_sync(&dev->hotkey_work);
1614 if (dev->hotkey_dev) {
1615 input_unregister_device(dev->hotkey_dev);
1616 sparse_keymap_free(dev->hotkey_dev);
1620 rfkill_unregister(dev->bt_rfk);
1621 rfkill_destroy(dev->bt_rfk);
1624 if (dev->backlight_dev)
1625 backlight_device_unregister(dev->backlight_dev);
1627 if (dev->illumination_supported)
1628 led_classdev_unregister(&dev->led_dev);
1630 if (dev->kbd_led_registered)
1631 led_classdev_unregister(&dev->kbd_led);
1633 if (dev->eco_supported)
1634 led_classdev_unregister(&dev->eco_led);
1637 toshiba_acpi = NULL;
1644 static const char *find_hci_method(acpi_handle handle)
1646 if (acpi_has_method(handle, "GHCI"))
1649 if (acpi_has_method(handle, "SPFC"))
1655 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
1657 struct toshiba_acpi_dev *dev;
1658 const char *hci_method;
1666 pr_info("Toshiba Laptop ACPI Extras version %s\n",
1667 TOSHIBA_ACPI_VERSION);
1669 hci_method = find_hci_method(acpi_dev->handle);
1671 pr_err("HCI interface not found\n");
1675 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1678 dev->acpi_dev = acpi_dev;
1679 dev->method_hci = hci_method;
1680 acpi_dev->driver_data = dev;
1681 dev_set_drvdata(&acpi_dev->dev, dev);
1683 if (toshiba_acpi_setup_keyboard(dev))
1684 pr_info("Unable to activate hotkeys\n");
1686 mutex_init(&dev->mutex);
1688 ret = toshiba_acpi_setup_backlight(dev);
1692 /* Register rfkill switch for Bluetooth */
1693 if (hci_get_bt_present(dev, &bt_present) == HCI_SUCCESS && bt_present) {
1694 dev->bt_rfk = rfkill_alloc("Toshiba Bluetooth",
1696 RFKILL_TYPE_BLUETOOTH,
1700 pr_err("unable to allocate rfkill device\n");
1705 ret = rfkill_register(dev->bt_rfk);
1707 pr_err("unable to register rfkill device\n");
1708 rfkill_destroy(dev->bt_rfk);
1713 if (toshiba_illumination_available(dev)) {
1714 dev->led_dev.name = "toshiba::illumination";
1715 dev->led_dev.max_brightness = 1;
1716 dev->led_dev.brightness_set = toshiba_illumination_set;
1717 dev->led_dev.brightness_get = toshiba_illumination_get;
1718 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
1719 dev->illumination_supported = 1;
1722 if (toshiba_eco_mode_available(dev)) {
1723 dev->eco_led.name = "toshiba::eco_mode";
1724 dev->eco_led.max_brightness = 1;
1725 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
1726 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
1727 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
1728 dev->eco_supported = 1;
1731 ret = toshiba_kbd_illum_status_get(dev, &dummy);
1733 dev->kbd_time = dummy >> HCI_MISC_SHIFT;
1734 dev->kbd_mode = dummy & 0x07;
1736 dev->kbd_illum_supported = !ret;
1738 * Only register the LED if KBD illumination is supported
1739 * and the keyboard backlight operation mode is set to FN-Z
1741 if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
1742 dev->kbd_led.name = "toshiba::kbd_backlight";
1743 dev->kbd_led.max_brightness = 1;
1744 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
1745 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
1746 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
1747 dev->kbd_led_registered = 1;
1750 ret = toshiba_touchpad_get(dev, &dummy);
1751 dev->touchpad_supported = !ret;
1753 ret = toshiba_accelerometer_supported(dev);
1754 dev->accelerometer_supported = !ret;
1756 /* Determine whether or not BIOS supports fan and video interfaces */
1758 ret = get_video_status(dev, &dummy);
1759 dev->video_supported = !ret;
1761 ret = get_fan_status(dev, &dummy);
1762 dev->fan_supported = !ret;
1764 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
1765 &toshiba_attr_group);
1767 dev->sysfs_created = 0;
1770 dev->sysfs_created = !ret;
1772 create_toshiba_proc_entries(dev);
1779 toshiba_acpi_remove(acpi_dev);
1783 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
1785 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
1786 u32 hci_result, value;
1793 if (dev->info_supported) {
1794 scancode = toshiba_acpi_query_hotkey(dev);
1796 pr_err("Failed to query hotkey event\n");
1797 else if (scancode != 0)
1798 toshiba_acpi_report_hotkey(dev, scancode);
1799 } else if (dev->system_event_supported) {
1801 hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result);
1802 switch (hci_result) {
1804 toshiba_acpi_report_hotkey(dev, (int)value);
1806 case HCI_NOT_SUPPORTED:
1808 * This is a workaround for an unresolved
1809 * issue on some machines where system events
1810 * sporadically become disabled.
1812 hci_write1(dev, HCI_SYSTEM_EVENT, 1,
1814 pr_notice("Re-enabled hotkeys\n");
1820 } while (retries && hci_result != HCI_EMPTY);
1824 #ifdef CONFIG_PM_SLEEP
1825 static int toshiba_acpi_suspend(struct device *device)
1827 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
1830 if (dev->hotkey_dev)
1831 hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE, &result);
1836 static int toshiba_acpi_resume(struct device *device)
1838 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
1841 if (dev->hotkey_dev)
1842 hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &result);
1848 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
1849 toshiba_acpi_suspend, toshiba_acpi_resume);
1851 static struct acpi_driver toshiba_acpi_driver = {
1852 .name = "Toshiba ACPI driver",
1853 .owner = THIS_MODULE,
1854 .ids = toshiba_device_ids,
1855 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
1857 .add = toshiba_acpi_add,
1858 .remove = toshiba_acpi_remove,
1859 .notify = toshiba_acpi_notify,
1861 .drv.pm = &toshiba_acpi_pm,
1864 static int __init toshiba_acpi_init(void)
1869 * Machines with this WMI guid aren't supported due to bugs in
1870 * their AML. This check relies on wmi initializing before
1871 * toshiba_acpi to guarantee guids have been identified.
1873 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
1876 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
1877 if (!toshiba_proc_dir) {
1878 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
1882 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
1884 pr_err("Failed to register ACPI driver: %d\n", ret);
1885 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
1891 static void __exit toshiba_acpi_exit(void)
1893 acpi_bus_unregister_driver(&toshiba_acpi_driver);
1894 if (toshiba_proc_dir)
1895 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
1898 module_init(toshiba_acpi_init);
1899 module_exit(toshiba_acpi_exit);