2 * eepc-laptop.c - Asus Eee PC extras
4 * Based on asus_acpi.c as patched for the Eee PC by Asus:
5 * ftp://ftp.asus.com/pub/ASUS/EeePC/701/ASUS_ACPI_071126.rar
6 * Based on eee.c from eeepc-linux
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.
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.
19 #include <linux/kernel.h>
20 #include <linux/module.h>
21 #include <linux/init.h>
22 #include <linux/types.h>
23 #include <linux/platform_device.h>
24 #include <linux/backlight.h>
26 #include <linux/hwmon.h>
27 #include <linux/hwmon-sysfs.h>
28 #include <acpi/acpi_drivers.h>
29 #include <acpi/acpi_bus.h>
30 #include <linux/uaccess.h>
31 #include <linux/input.h>
32 #include <linux/rfkill.h>
33 #include <linux/pci.h>
35 #define EEEPC_LAPTOP_VERSION "0.1"
37 #define EEEPC_HOTK_NAME "Eee PC Hotkey Driver"
38 #define EEEPC_HOTK_FILE "eeepc"
39 #define EEEPC_HOTK_CLASS "hotkey"
40 #define EEEPC_HOTK_DEVICE_NAME "Hotkey"
41 #define EEEPC_HOTK_HID "ASUS010"
43 #define EEEPC_LOG EEEPC_HOTK_FILE ": "
44 #define EEEPC_ERR KERN_ERR EEEPC_LOG
45 #define EEEPC_WARNING KERN_WARNING EEEPC_LOG
46 #define EEEPC_NOTICE KERN_NOTICE EEEPC_LOG
47 #define EEEPC_INFO KERN_INFO EEEPC_LOG
50 * Definitions for Asus EeePC
52 #define NOTIFY_WLAN_ON 0x10
53 #define NOTIFY_BRN_MIN 0x20
54 #define NOTIFY_BRN_MAX 0x2f
57 DISABLE_ASL_WLAN
= 0x0001,
58 DISABLE_ASL_BLUETOOTH
= 0x0002,
59 DISABLE_ASL_IRDA
= 0x0004,
60 DISABLE_ASL_CAMERA
= 0x0008,
61 DISABLE_ASL_TV
= 0x0010,
62 DISABLE_ASL_GPS
= 0x0020,
63 DISABLE_ASL_DISPLAYSWITCH
= 0x0040,
64 DISABLE_ASL_MODEM
= 0x0080,
65 DISABLE_ASL_CARDREADER
= 0x0100
82 CM_ASL_CPUTEMPERATURE
,
93 static const char *cm_getv
[] = {
94 "WLDG", "BTHG", NULL
, NULL
,
95 "CAMG", NULL
, NULL
, NULL
,
96 NULL
, "PBLG", NULL
, NULL
,
97 "CFVG", NULL
, NULL
, NULL
,
98 "USBG", NULL
, NULL
, "MODG",
102 static const char *cm_setv
[] = {
103 "WLDS", "BTHS", NULL
, NULL
,
104 "CAMS", NULL
, NULL
, NULL
,
105 "SDSP", "PBLS", "HDPS", NULL
,
106 "CFVS", NULL
, NULL
, NULL
,
107 "USBG", NULL
, NULL
, "MODS",
111 #define EEEPC_EC "\\_SB.PCI0.SBRG.EC0."
113 #define EEEPC_EC_FAN_PWM EEEPC_EC "SC02" /* Fan PWM duty cycle (%) */
114 #define EEEPC_EC_SC02 0x63
115 #define EEEPC_EC_FAN_HRPM EEEPC_EC "SC05" /* High byte, fan speed (RPM) */
116 #define EEEPC_EC_FAN_LRPM EEEPC_EC "SC06" /* Low byte, fan speed (RPM) */
117 #define EEEPC_EC_FAN_CTRL EEEPC_EC "SFB3" /* Byte containing SF25 */
118 #define EEEPC_EC_SFB3 0xD3
121 * This is the main structure, we can use it to store useful information
122 * about the hotk device
125 struct acpi_device
*device
; /* the device we are in */
126 acpi_handle handle
; /* the handle of the hotk device */
127 u32 cm_supported
; /* the control methods supported
129 uint init_flag
; /* Init flags */
130 u16 event_count
[128]; /* count for each event */
131 struct input_dev
*inputdev
;
133 struct rfkill
*eeepc_wlan_rfkill
;
134 struct rfkill
*eeepc_bluetooth_rfkill
;
137 /* The actual device the driver binds to */
138 static struct eeepc_hotk
*ehotk
;
140 /* Platform device/driver */
141 static struct platform_driver platform_driver
= {
143 .name
= EEEPC_HOTK_FILE
,
144 .owner
= THIS_MODULE
,
148 static struct platform_device
*platform_device
;
156 enum { KE_KEY
, KE_END
};
158 static struct key_entry eeepc_keymap
[] = {
159 /* Sleep already handled via generic ACPI code */
160 {KE_KEY
, 0x10, KEY_WLAN
},
161 {KE_KEY
, 0x12, KEY_PROG1
},
162 {KE_KEY
, 0x13, KEY_MUTE
},
163 {KE_KEY
, 0x14, KEY_VOLUMEDOWN
},
164 {KE_KEY
, 0x15, KEY_VOLUMEUP
},
165 {KE_KEY
, 0x1a, KEY_COFFEE
},
166 {KE_KEY
, 0x1b, KEY_ZOOM
},
167 {KE_KEY
, 0x1c, KEY_PROG2
},
168 {KE_KEY
, 0x1d, KEY_PROG3
},
169 {KE_KEY
, 0x30, KEY_SWITCHVIDEOMODE
},
170 {KE_KEY
, 0x31, KEY_SWITCHVIDEOMODE
},
171 {KE_KEY
, 0x32, KEY_SWITCHVIDEOMODE
},
176 * The hotkey driver declaration
178 static int eeepc_hotk_add(struct acpi_device
*device
);
179 static int eeepc_hotk_remove(struct acpi_device
*device
, int type
);
181 static const struct acpi_device_id eeepc_device_ids
[] = {
185 MODULE_DEVICE_TABLE(acpi
, eeepc_device_ids
);
187 static struct acpi_driver eeepc_hotk_driver
= {
188 .name
= EEEPC_HOTK_NAME
,
189 .class = EEEPC_HOTK_CLASS
,
190 .ids
= eeepc_device_ids
,
192 .add
= eeepc_hotk_add
,
193 .remove
= eeepc_hotk_remove
,
197 /* The backlight device /sys/class/backlight */
198 static struct backlight_device
*eeepc_backlight_device
;
200 /* The hwmon device */
201 static struct device
*eeepc_hwmon_device
;
204 * The backlight class declaration
206 static int read_brightness(struct backlight_device
*bd
);
207 static int update_bl_status(struct backlight_device
*bd
);
208 static struct backlight_ops eeepcbl_ops
= {
209 .get_brightness
= read_brightness
,
210 .update_status
= update_bl_status
,
213 MODULE_AUTHOR("Corentin Chary, Eric Cooper");
214 MODULE_DESCRIPTION(EEEPC_HOTK_NAME
);
215 MODULE_LICENSE("GPL");
220 static int write_acpi_int(acpi_handle handle
, const char *method
, int val
,
221 struct acpi_buffer
*output
)
223 struct acpi_object_list params
;
224 union acpi_object in_obj
;
228 params
.pointer
= &in_obj
;
229 in_obj
.type
= ACPI_TYPE_INTEGER
;
230 in_obj
.integer
.value
= val
;
232 status
= acpi_evaluate_object(handle
, (char *)method
, ¶ms
, output
);
233 return (status
== AE_OK
? 0 : -1);
236 static int read_acpi_int(acpi_handle handle
, const char *method
, int *val
)
239 unsigned long long result
;
241 status
= acpi_evaluate_integer(handle
, (char *)method
, NULL
, &result
);
242 if (ACPI_FAILURE(status
)) {
251 static int set_acpi(int cm
, int value
)
253 if (ehotk
->cm_supported
& (0x1 << cm
)) {
254 const char *method
= cm_setv
[cm
];
257 if (write_acpi_int(ehotk
->handle
, method
, value
, NULL
))
258 printk(EEEPC_WARNING
"Error writing %s\n", method
);
263 static int get_acpi(int cm
)
266 if ((ehotk
->cm_supported
& (0x1 << cm
))) {
267 const char *method
= cm_getv
[cm
];
270 if (read_acpi_int(ehotk
->handle
, method
, &value
))
271 printk(EEEPC_WARNING
"Error reading %s\n", method
);
279 static int read_brightness(struct backlight_device
*bd
)
281 return get_acpi(CM_ASL_PANELBRIGHT
);
284 static int set_brightness(struct backlight_device
*bd
, int value
)
286 value
= max(0, min(15, value
));
287 return set_acpi(CM_ASL_PANELBRIGHT
, value
);
290 static int update_bl_status(struct backlight_device
*bd
)
292 return set_brightness(bd
, bd
->props
.brightness
);
299 static int eeepc_wlan_rfkill_set(void *data
, enum rfkill_state state
)
301 if (state
== RFKILL_STATE_SOFT_BLOCKED
)
302 return set_acpi(CM_ASL_WLAN
, 0);
304 return set_acpi(CM_ASL_WLAN
, 1);
307 static int eeepc_wlan_rfkill_state(void *data
, enum rfkill_state
*state
)
309 if (get_acpi(CM_ASL_WLAN
) == 1)
310 *state
= RFKILL_STATE_UNBLOCKED
;
312 *state
= RFKILL_STATE_SOFT_BLOCKED
;
316 static int eeepc_bluetooth_rfkill_set(void *data
, enum rfkill_state state
)
318 if (state
== RFKILL_STATE_SOFT_BLOCKED
)
319 return set_acpi(CM_ASL_BLUETOOTH
, 0);
321 return set_acpi(CM_ASL_BLUETOOTH
, 1);
324 static int eeepc_bluetooth_rfkill_state(void *data
, enum rfkill_state
*state
)
326 if (get_acpi(CM_ASL_BLUETOOTH
) == 1)
327 *state
= RFKILL_STATE_UNBLOCKED
;
329 *state
= RFKILL_STATE_SOFT_BLOCKED
;
336 static int parse_arg(const char *buf
, unsigned long count
, int *val
)
340 if (sscanf(buf
, "%i", val
) != 1)
345 static ssize_t
store_sys_acpi(int cm
, const char *buf
, size_t count
)
349 rv
= parse_arg(buf
, count
, &value
);
355 static ssize_t
show_sys_acpi(int cm
, char *buf
)
357 return sprintf(buf
, "%d\n", get_acpi(cm
));
360 #define EEEPC_CREATE_DEVICE_ATTR(_name, _cm) \
361 static ssize_t show_##_name(struct device *dev, \
362 struct device_attribute *attr, \
365 return show_sys_acpi(_cm, buf); \
367 static ssize_t store_##_name(struct device *dev, \
368 struct device_attribute *attr, \
369 const char *buf, size_t count) \
371 return store_sys_acpi(_cm, buf, count); \
373 static struct device_attribute dev_attr_##_name = { \
375 .name = __stringify(_name), \
377 .show = show_##_name, \
378 .store = store_##_name, \
381 EEEPC_CREATE_DEVICE_ATTR(camera
, CM_ASL_CAMERA
);
382 EEEPC_CREATE_DEVICE_ATTR(cardr
, CM_ASL_CARDREADER
);
383 EEEPC_CREATE_DEVICE_ATTR(disp
, CM_ASL_DISPLAYSWITCH
);
385 static struct attribute
*platform_attributes
[] = {
386 &dev_attr_camera
.attr
,
387 &dev_attr_cardr
.attr
,
392 static struct attribute_group platform_attribute_group
= {
393 .attrs
= platform_attributes
399 static struct key_entry
*eepc_get_entry_by_scancode(int code
)
401 struct key_entry
*key
;
403 for (key
= eeepc_keymap
; key
->type
!= KE_END
; key
++)
404 if (code
== key
->code
)
410 static struct key_entry
*eepc_get_entry_by_keycode(int code
)
412 struct key_entry
*key
;
414 for (key
= eeepc_keymap
; key
->type
!= KE_END
; key
++)
415 if (code
== key
->keycode
&& key
->type
== KE_KEY
)
421 static int eeepc_getkeycode(struct input_dev
*dev
, int scancode
, int *keycode
)
423 struct key_entry
*key
= eepc_get_entry_by_scancode(scancode
);
425 if (key
&& key
->type
== KE_KEY
) {
426 *keycode
= key
->keycode
;
433 static int eeepc_setkeycode(struct input_dev
*dev
, int scancode
, int keycode
)
435 struct key_entry
*key
;
438 if (keycode
< 0 || keycode
> KEY_MAX
)
441 key
= eepc_get_entry_by_scancode(scancode
);
442 if (key
&& key
->type
== KE_KEY
) {
443 old_keycode
= key
->keycode
;
444 key
->keycode
= keycode
;
445 set_bit(keycode
, dev
->keybit
);
446 if (!eepc_get_entry_by_keycode(old_keycode
))
447 clear_bit(old_keycode
, dev
->keybit
);
454 static int eeepc_hotk_check(void)
456 const struct key_entry
*key
;
457 struct acpi_buffer buffer
= { ACPI_ALLOCATE_BUFFER
, NULL
};
460 result
= acpi_bus_get_status(ehotk
->device
);
463 if (ehotk
->device
->status
.present
) {
464 if (write_acpi_int(ehotk
->handle
, "INIT", ehotk
->init_flag
,
466 printk(EEEPC_ERR
"Hotkey initialization failed\n");
469 printk(EEEPC_NOTICE
"Hotkey init flags 0x%x\n",
472 /* get control methods supported */
473 if (read_acpi_int(ehotk
->handle
, "CMSG"
474 , &ehotk
->cm_supported
)) {
476 "Get control methods supported failed\n");
480 "Get control methods supported: 0x%x\n",
481 ehotk
->cm_supported
);
483 ehotk
->inputdev
= input_allocate_device();
484 if (!ehotk
->inputdev
) {
485 printk(EEEPC_INFO
"Unable to allocate input device\n");
488 ehotk
->inputdev
->name
= "Asus EeePC extra buttons";
489 ehotk
->inputdev
->phys
= EEEPC_HOTK_FILE
"/input0";
490 ehotk
->inputdev
->id
.bustype
= BUS_HOST
;
491 ehotk
->inputdev
->getkeycode
= eeepc_getkeycode
;
492 ehotk
->inputdev
->setkeycode
= eeepc_setkeycode
;
494 for (key
= eeepc_keymap
; key
->type
!= KE_END
; key
++) {
497 set_bit(EV_KEY
, ehotk
->inputdev
->evbit
);
498 set_bit(key
->keycode
, ehotk
->inputdev
->keybit
);
502 result
= input_register_device(ehotk
->inputdev
);
504 printk(EEEPC_INFO
"Unable to register input device\n");
505 input_free_device(ehotk
->inputdev
);
509 printk(EEEPC_ERR
"Hotkey device not present, aborting\n");
515 static void notify_brn(void)
517 struct backlight_device
*bd
= eeepc_backlight_device
;
519 bd
->props
.brightness
= read_brightness(bd
);
522 static void eeepc_rfkill_notify(acpi_handle handle
, u32 event
, void *data
)
525 struct pci_bus
*bus
= pci_find_bus(0, 1);
527 if (event
!= ACPI_NOTIFY_BUS_CHECK
)
531 printk(EEEPC_WARNING
"Unable to find PCI bus 1?\n");
535 if (get_acpi(CM_ASL_WLAN
) == 1) {
536 dev
= pci_get_slot(bus
, 0);
538 /* Device already present */
542 dev
= pci_scan_single_device(bus
, 0);
544 pci_bus_assign_resources(bus
);
545 if (pci_bus_add_device(dev
))
546 printk(EEEPC_ERR
"Unable to hotplug wifi\n");
549 dev
= pci_get_slot(bus
, 0);
551 pci_remove_bus_device(dev
);
557 static void eeepc_hotk_notify(acpi_handle handle
, u32 event
, void *data
)
559 static struct key_entry
*key
;
564 if (event
>= NOTIFY_BRN_MIN
&& event
<= NOTIFY_BRN_MAX
)
566 count
= ehotk
->event_count
[event
% 128]++;
567 acpi_bus_generate_proc_event(ehotk
->device
, event
, count
);
568 acpi_bus_generate_netlink_event(ehotk
->device
->pnp
.device_class
,
569 dev_name(&ehotk
->device
->dev
), event
,
571 if (ehotk
->inputdev
) {
572 key
= eepc_get_entry_by_scancode(event
);
576 input_report_key(ehotk
->inputdev
, key
->keycode
,
578 input_sync(ehotk
->inputdev
);
579 input_report_key(ehotk
->inputdev
, key
->keycode
,
581 input_sync(ehotk
->inputdev
);
588 static int eeepc_register_rfkill_notifier(char *node
)
590 acpi_status status
= AE_OK
;
593 status
= acpi_get_handle(NULL
, node
, &handle
);
595 if (ACPI_SUCCESS(status
)) {
596 status
= acpi_install_notify_handler(handle
,
600 if (ACPI_FAILURE(status
))
602 "Failed to register notify on %s\n", node
);
609 static void eeepc_unregister_rfkill_notifier(char *node
)
611 acpi_status status
= AE_OK
;
614 status
= acpi_get_handle(NULL
, node
, &handle
);
616 if (ACPI_SUCCESS(status
)) {
617 status
= acpi_remove_notify_handler(handle
,
619 eeepc_rfkill_notify
);
620 if (ACPI_FAILURE(status
))
622 "Error removing rfkill notify handler %s\n",
627 static int eeepc_hotk_add(struct acpi_device
*device
)
629 acpi_status status
= AE_OK
;
634 printk(EEEPC_NOTICE EEEPC_HOTK_NAME
"\n");
635 ehotk
= kzalloc(sizeof(struct eeepc_hotk
), GFP_KERNEL
);
638 ehotk
->init_flag
= DISABLE_ASL_WLAN
| DISABLE_ASL_DISPLAYSWITCH
;
639 ehotk
->handle
= device
->handle
;
640 strcpy(acpi_device_name(device
), EEEPC_HOTK_DEVICE_NAME
);
641 strcpy(acpi_device_class(device
), EEEPC_HOTK_CLASS
);
642 device
->driver_data
= ehotk
;
643 ehotk
->device
= device
;
644 result
= eeepc_hotk_check();
647 status
= acpi_install_notify_handler(ehotk
->handle
, ACPI_SYSTEM_NOTIFY
,
648 eeepc_hotk_notify
, ehotk
);
649 if (ACPI_FAILURE(status
))
650 printk(EEEPC_ERR
"Error installing notify handler\n");
652 if (get_acpi(CM_ASL_WLAN
) != -1) {
653 ehotk
->eeepc_wlan_rfkill
= rfkill_allocate(&device
->dev
,
656 if (!ehotk
->eeepc_wlan_rfkill
)
659 ehotk
->eeepc_wlan_rfkill
->name
= "eeepc-wlan";
660 ehotk
->eeepc_wlan_rfkill
->toggle_radio
= eeepc_wlan_rfkill_set
;
661 ehotk
->eeepc_wlan_rfkill
->get_state
= eeepc_wlan_rfkill_state
;
662 if (get_acpi(CM_ASL_WLAN
) == 1) {
663 ehotk
->eeepc_wlan_rfkill
->state
=
664 RFKILL_STATE_UNBLOCKED
;
665 rfkill_set_default(RFKILL_TYPE_WLAN
,
666 RFKILL_STATE_UNBLOCKED
);
668 ehotk
->eeepc_wlan_rfkill
->state
=
669 RFKILL_STATE_SOFT_BLOCKED
;
670 rfkill_set_default(RFKILL_TYPE_WLAN
,
671 RFKILL_STATE_SOFT_BLOCKED
);
673 result
= rfkill_register(ehotk
->eeepc_wlan_rfkill
);
678 if (get_acpi(CM_ASL_BLUETOOTH
) != -1) {
679 ehotk
->eeepc_bluetooth_rfkill
=
680 rfkill_allocate(&device
->dev
, RFKILL_TYPE_BLUETOOTH
);
682 if (!ehotk
->eeepc_bluetooth_rfkill
)
685 ehotk
->eeepc_bluetooth_rfkill
->name
= "eeepc-bluetooth";
686 ehotk
->eeepc_bluetooth_rfkill
->toggle_radio
=
687 eeepc_bluetooth_rfkill_set
;
688 ehotk
->eeepc_bluetooth_rfkill
->get_state
=
689 eeepc_bluetooth_rfkill_state
;
690 if (get_acpi(CM_ASL_BLUETOOTH
) == 1) {
691 ehotk
->eeepc_bluetooth_rfkill
->state
=
692 RFKILL_STATE_UNBLOCKED
;
693 rfkill_set_default(RFKILL_TYPE_BLUETOOTH
,
694 RFKILL_STATE_UNBLOCKED
);
696 ehotk
->eeepc_bluetooth_rfkill
->state
=
697 RFKILL_STATE_SOFT_BLOCKED
;
698 rfkill_set_default(RFKILL_TYPE_BLUETOOTH
,
699 RFKILL_STATE_SOFT_BLOCKED
);
702 result
= rfkill_register(ehotk
->eeepc_bluetooth_rfkill
);
707 eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6");
708 eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7");
713 if (ehotk
->eeepc_bluetooth_rfkill
)
714 rfkill_free(ehotk
->eeepc_bluetooth_rfkill
);
715 rfkill_unregister(ehotk
->eeepc_wlan_rfkill
);
716 ehotk
->eeepc_wlan_rfkill
= NULL
;
718 if (ehotk
->eeepc_wlan_rfkill
)
719 rfkill_free(ehotk
->eeepc_wlan_rfkill
);
727 static int eeepc_hotk_remove(struct acpi_device
*device
, int type
)
729 acpi_status status
= 0;
731 if (!device
|| !acpi_driver_data(device
))
733 status
= acpi_remove_notify_handler(ehotk
->handle
, ACPI_SYSTEM_NOTIFY
,
735 if (ACPI_FAILURE(status
))
736 printk(EEEPC_ERR
"Error removing notify handler\n");
738 eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6");
739 eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7");
748 static int eeepc_get_fan_pwm(void)
752 read_acpi_int(NULL
, EEEPC_EC_FAN_PWM
, &value
);
753 value
= value
* 255 / 100;
757 static void eeepc_set_fan_pwm(int value
)
759 value
= SENSORS_LIMIT(value
, 0, 255);
760 value
= value
* 100 / 255;
761 ec_write(EEEPC_EC_SC02
, value
);
764 static int eeepc_get_fan_rpm(void)
769 read_acpi_int(NULL
, EEEPC_EC_FAN_HRPM
, &high
);
770 read_acpi_int(NULL
, EEEPC_EC_FAN_LRPM
, &low
);
771 return (high
<< 8 | low
);
774 static int eeepc_get_fan_ctrl(void)
778 read_acpi_int(NULL
, EEEPC_EC_FAN_CTRL
, &value
);
779 return ((value
& 0x02 ? 1 : 0));
782 static void eeepc_set_fan_ctrl(int manual
)
786 read_acpi_int(NULL
, EEEPC_EC_FAN_CTRL
, &value
);
791 ec_write(EEEPC_EC_SFB3
, value
);
794 static ssize_t
store_sys_hwmon(void (*set
)(int), const char *buf
, size_t count
)
798 rv
= parse_arg(buf
, count
, &value
);
804 static ssize_t
show_sys_hwmon(int (*get
)(void), char *buf
)
806 return sprintf(buf
, "%d\n", get());
809 #define EEEPC_CREATE_SENSOR_ATTR(_name, _mode, _set, _get) \
810 static ssize_t show_##_name(struct device *dev, \
811 struct device_attribute *attr, \
814 return show_sys_hwmon(_set, buf); \
816 static ssize_t store_##_name(struct device *dev, \
817 struct device_attribute *attr, \
818 const char *buf, size_t count) \
820 return store_sys_hwmon(_get, buf, count); \
822 static SENSOR_DEVICE_ATTR(_name, _mode, show_##_name, store_##_name, 0);
824 EEEPC_CREATE_SENSOR_ATTR(fan1_input
, S_IRUGO
, eeepc_get_fan_rpm
, NULL
);
825 EEEPC_CREATE_SENSOR_ATTR(pwm1
, S_IRUGO
| S_IWUSR
,
826 eeepc_get_fan_pwm
, eeepc_set_fan_pwm
);
827 EEEPC_CREATE_SENSOR_ATTR(pwm1_enable
, S_IRUGO
| S_IWUSR
,
828 eeepc_get_fan_ctrl
, eeepc_set_fan_ctrl
);
831 show_name(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
833 return sprintf(buf
, "eeepc\n");
835 static SENSOR_DEVICE_ATTR(name
, S_IRUGO
, show_name
, NULL
, 0);
837 static struct attribute
*hwmon_attributes
[] = {
838 &sensor_dev_attr_pwm1
.dev_attr
.attr
,
839 &sensor_dev_attr_fan1_input
.dev_attr
.attr
,
840 &sensor_dev_attr_pwm1_enable
.dev_attr
.attr
,
841 &sensor_dev_attr_name
.dev_attr
.attr
,
845 static struct attribute_group hwmon_attribute_group
= {
846 .attrs
= hwmon_attributes
852 static void eeepc_backlight_exit(void)
854 if (eeepc_backlight_device
)
855 backlight_device_unregister(eeepc_backlight_device
);
856 eeepc_backlight_device
= NULL
;
859 static void eeepc_rfkill_exit(void)
861 if (ehotk
->eeepc_wlan_rfkill
)
862 rfkill_unregister(ehotk
->eeepc_wlan_rfkill
);
863 if (ehotk
->eeepc_bluetooth_rfkill
)
864 rfkill_unregister(ehotk
->eeepc_bluetooth_rfkill
);
867 static void eeepc_input_exit(void)
870 input_unregister_device(ehotk
->inputdev
);
873 static void eeepc_hwmon_exit(void)
875 struct device
*hwmon
;
877 hwmon
= eeepc_hwmon_device
;
880 sysfs_remove_group(&hwmon
->kobj
,
881 &hwmon_attribute_group
);
882 hwmon_device_unregister(hwmon
);
883 eeepc_hwmon_device
= NULL
;
886 static void __exit
eeepc_laptop_exit(void)
888 eeepc_backlight_exit();
892 acpi_bus_unregister_driver(&eeepc_hotk_driver
);
893 sysfs_remove_group(&platform_device
->dev
.kobj
,
894 &platform_attribute_group
);
895 platform_device_unregister(platform_device
);
896 platform_driver_unregister(&platform_driver
);
899 static int eeepc_backlight_init(struct device
*dev
)
901 struct backlight_device
*bd
;
903 bd
= backlight_device_register(EEEPC_HOTK_FILE
, dev
,
907 "Could not register eeepc backlight device\n");
908 eeepc_backlight_device
= NULL
;
911 eeepc_backlight_device
= bd
;
912 bd
->props
.max_brightness
= 15;
913 bd
->props
.brightness
= read_brightness(NULL
);
914 bd
->props
.power
= FB_BLANK_UNBLANK
;
915 backlight_update_status(bd
);
919 static int eeepc_hwmon_init(struct device
*dev
)
921 struct device
*hwmon
;
924 hwmon
= hwmon_device_register(dev
);
927 "Could not register eeepc hwmon device\n");
928 eeepc_hwmon_device
= NULL
;
929 return PTR_ERR(hwmon
);
931 eeepc_hwmon_device
= hwmon
;
932 result
= sysfs_create_group(&hwmon
->kobj
,
933 &hwmon_attribute_group
);
939 static int __init
eeepc_laptop_init(void)
946 result
= acpi_bus_register_driver(&eeepc_hotk_driver
);
950 acpi_bus_unregister_driver(&eeepc_hotk_driver
);
953 dev
= acpi_get_physical_device(ehotk
->device
->handle
);
955 if (!acpi_video_backlight_support()) {
956 result
= eeepc_backlight_init(dev
);
960 printk(EEEPC_INFO
"Backlight controlled by ACPI video "
963 result
= eeepc_hwmon_init(dev
);
966 /* Register platform stuff */
967 result
= platform_driver_register(&platform_driver
);
969 goto fail_platform_driver
;
970 platform_device
= platform_device_alloc(EEEPC_HOTK_FILE
, -1);
971 if (!platform_device
) {
973 goto fail_platform_device1
;
975 result
= platform_device_add(platform_device
);
977 goto fail_platform_device2
;
978 result
= sysfs_create_group(&platform_device
->dev
.kobj
,
979 &platform_attribute_group
);
984 platform_device_del(platform_device
);
985 fail_platform_device2
:
986 platform_device_put(platform_device
);
987 fail_platform_device1
:
988 platform_driver_unregister(&platform_driver
);
989 fail_platform_driver
:
992 eeepc_backlight_exit();
999 module_init(eeepc_laptop_init
);
1000 module_exit(eeepc_laptop_exit
);