Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Eee PC WMI hotkey driver |
| 3 | * |
| 4 | * Copyright(C) 2010 Intel Corporation. |
Corentin Chary | 4c4edfa | 2010-11-29 08:14:11 +0100 | [diff] [blame] | 5 | * Copyright(C) 2010 Corentin Chary <corentin.chary@gmail.com> |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 6 | * |
| 7 | * Portions based on wistron_btns.c: |
| 8 | * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz> |
| 9 | * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org> |
| 10 | * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru> |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU General Public License as published by |
| 14 | * the Free Software Foundation; either version 2 of the License, or |
| 15 | * (at your option) any later version. |
| 16 | * |
| 17 | * This program is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License |
| 23 | * along with this program; if not, write to the Free Software |
| 24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 25 | */ |
| 26 | |
Yong Wang | 8124888 | 2010-04-11 09:26:33 +0800 | [diff] [blame] | 27 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 28 | |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 29 | #include <linux/kernel.h> |
| 30 | #include <linux/module.h> |
| 31 | #include <linux/init.h> |
| 32 | #include <linux/types.h> |
Tejun Heo | a32f392 | 2010-04-05 11:37:59 +0900 | [diff] [blame] | 33 | #include <linux/slab.h> |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 34 | #include <linux/input.h> |
| 35 | #include <linux/input/sparse-keymap.h> |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 36 | #include <linux/fb.h> |
| 37 | #include <linux/backlight.h> |
Corentin Chary | 084fca6 | 2010-11-29 08:14:06 +0100 | [diff] [blame] | 38 | #include <linux/leds.h> |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 39 | #include <linux/rfkill.h> |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 40 | #include <linux/pci.h> |
| 41 | #include <linux/pci_hotplug.h> |
Corentin Chary | 8c1b2d8 | 2010-11-29 08:14:09 +0100 | [diff] [blame] | 42 | #include <linux/debugfs.h> |
| 43 | #include <linux/seq_file.h> |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 44 | #include <linux/platform_device.h> |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 45 | #include <linux/dmi.h> |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 46 | #include <acpi/acpi_bus.h> |
| 47 | #include <acpi/acpi_drivers.h> |
| 48 | |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 49 | #define EEEPC_WMI_FILE "eeepc-wmi" |
| 50 | |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 51 | MODULE_AUTHOR("Yong Wang <yong.y.wang@intel.com>"); |
| 52 | MODULE_DESCRIPTION("Eee PC WMI Hotkey Driver"); |
| 53 | MODULE_LICENSE("GPL"); |
| 54 | |
Corentin Chary | d358cb5 | 2010-11-29 08:14:14 +0100 | [diff] [blame] | 55 | #define EEEPC_ACPI_HID "ASUS010" /* old _HID used in eeepc-laptop */ |
| 56 | |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 57 | #define EEEPC_WMI_EVENT_GUID "ABBC0F72-8EA1-11D1-00A0-C90629100000" |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 58 | #define EEEPC_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66" |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 59 | |
| 60 | MODULE_ALIAS("wmi:"EEEPC_WMI_EVENT_GUID); |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 61 | MODULE_ALIAS("wmi:"EEEPC_WMI_MGMT_GUID); |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 62 | |
Corentin Chary | 33e0e6f | 2011-02-06 13:28:34 +0100 | [diff] [blame] | 63 | #define NOTIFY_BRNUP_MIN 0x11 |
| 64 | #define NOTIFY_BRNUP_MAX 0x1f |
| 65 | #define NOTIFY_BRNDOWN_MIN 0x20 |
| 66 | #define NOTIFY_BRNDOWN_MAX 0x2e |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 67 | |
Corentin Chary | 4381594 | 2011-02-06 13:28:43 +0100 | [diff] [blame^] | 68 | /* WMI Methods */ |
Corentin Chary | 33e0e6f | 2011-02-06 13:28:34 +0100 | [diff] [blame] | 69 | #define EEEPC_WMI_METHODID_DSTS 0x53544344 |
| 70 | #define EEEPC_WMI_METHODID_DEVS 0x53564544 |
| 71 | #define EEEPC_WMI_METHODID_CFVS 0x53564643 |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 72 | |
Corentin Chary | 4381594 | 2011-02-06 13:28:43 +0100 | [diff] [blame^] | 73 | /* Wireless */ |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 74 | #define EEEPC_WMI_DEVID_WLAN 0x00010011 |
| 75 | #define EEEPC_WMI_DEVID_BLUETOOTH 0x00010013 |
Corentin Chary | 2e9e159 | 2011-02-06 13:28:37 +0100 | [diff] [blame] | 76 | #define EEEPC_WMI_DEVID_WIMAX 0x00010017 |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 77 | #define EEEPC_WMI_DEVID_WWAN3G 0x00010019 |
Corentin Chary | 4381594 | 2011-02-06 13:28:43 +0100 | [diff] [blame^] | 78 | |
| 79 | /* Backlight and Brightness */ |
Corentin Chary | b718726 | 2011-02-06 13:28:39 +0100 | [diff] [blame] | 80 | #define EEEPC_WMI_DEVID_BACKLIGHT 0x00050011 |
| 81 | #define EEEPC_WMI_DEVID_BRIGHTNESS 0x00050012 |
Corentin Chary | 4381594 | 2011-02-06 13:28:43 +0100 | [diff] [blame^] | 82 | |
| 83 | /* Misc */ |
Corentin Chary | 9e1565b | 2011-02-06 13:28:36 +0100 | [diff] [blame] | 84 | #define EEEPC_WMI_DEVID_CAMERA 0x00060013 |
Corentin Chary | 4381594 | 2011-02-06 13:28:43 +0100 | [diff] [blame^] | 85 | |
| 86 | /* Storage */ |
Corentin Chary | 9e1565b | 2011-02-06 13:28:36 +0100 | [diff] [blame] | 87 | #define EEEPC_WMI_DEVID_CARDREADER 0x00080013 |
Corentin Chary | 4381594 | 2011-02-06 13:28:43 +0100 | [diff] [blame^] | 88 | |
| 89 | /* Input */ |
Corentin Chary | 4615bb6 | 2011-02-06 13:28:42 +0100 | [diff] [blame] | 90 | #define EEEPC_WMI_DEVID_TOUCHPAD 0x00100011 |
Corentin Chary | 8571d75 | 2011-02-06 13:28:41 +0100 | [diff] [blame] | 91 | #define EEEPC_WMI_DEVID_TOUCHPAD_LED 0x00100012 |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 92 | |
Corentin Chary | 4381594 | 2011-02-06 13:28:43 +0100 | [diff] [blame^] | 93 | /* DSTS masks */ |
Corentin Chary | aafa719 | 2011-02-06 13:28:35 +0100 | [diff] [blame] | 94 | #define EEEPC_WMI_DSTS_STATUS_BIT 0x00000001 |
| 95 | #define EEEPC_WMI_DSTS_PRESENCE_BIT 0x00010000 |
Corentin Chary | b718726 | 2011-02-06 13:28:39 +0100 | [diff] [blame] | 96 | #define EEEPC_WMI_DSTS_BRIGHTNESS_MASK 0x000000FF |
| 97 | #define EEEPC_WMI_DSTS_MAX_BRIGTH_MASK 0x0000FF00 |
Corentin Chary | aafa719 | 2011-02-06 13:28:35 +0100 | [diff] [blame] | 98 | |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 99 | static bool hotplug_wireless; |
| 100 | |
| 101 | module_param(hotplug_wireless, bool, 0444); |
| 102 | MODULE_PARM_DESC(hotplug_wireless, |
| 103 | "Enable hotplug for wireless device. " |
| 104 | "If your laptop needs that, please report to " |
| 105 | "acpi4asus-user@lists.sourceforge.net."); |
| 106 | |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 107 | static const struct key_entry eeepc_wmi_keymap[] = { |
| 108 | /* Sleep already handled via generic ACPI code */ |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 109 | { KE_IGNORE, NOTIFY_BRNDOWN_MIN, { KEY_BRIGHTNESSDOWN } }, |
| 110 | { KE_IGNORE, NOTIFY_BRNUP_MIN, { KEY_BRIGHTNESSUP } }, |
Corentin Chary | 5628e5a | 2011-02-06 13:28:26 +0100 | [diff] [blame] | 111 | { KE_KEY, 0x30, { KEY_VOLUMEUP } }, |
| 112 | { KE_KEY, 0x31, { KEY_VOLUMEDOWN } }, |
| 113 | { KE_KEY, 0x32, { KEY_MUTE } }, |
Corentin Chary | 77ca5b0 | 2011-02-06 13:30:48 +0100 | [diff] [blame] | 114 | { KE_KEY, 0x5c, { KEY_F15 } }, /* Power Gear key */ |
Corentin Chary | 5628e5a | 2011-02-06 13:28:26 +0100 | [diff] [blame] | 115 | { KE_KEY, 0x5d, { KEY_WLAN } }, |
Chris Bagwell | eda1748 | 2010-10-11 18:47:17 -0500 | [diff] [blame] | 116 | { KE_KEY, 0x6b, { KEY_F13 } }, /* Disable Touchpad */ |
Corentin Chary | bc40cce | 2011-02-06 13:28:27 +0100 | [diff] [blame] | 117 | { KE_KEY, 0x88, { KEY_WLAN } }, |
Corentin Chary | 5628e5a | 2011-02-06 13:28:26 +0100 | [diff] [blame] | 118 | { KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } }, |
Corentin Chary | 77ca5b0 | 2011-02-06 13:30:48 +0100 | [diff] [blame] | 119 | { KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */ |
| 120 | { KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */ |
Corentin Chary | 54c799a | 2011-02-06 13:28:38 +0100 | [diff] [blame] | 121 | { KE_KEY, 0xe9, { KEY_BRIGHTNESS_ZERO } }, |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 122 | { KE_END, 0}, |
| 123 | }; |
| 124 | |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 125 | struct bios_args { |
| 126 | u32 dev_id; |
| 127 | u32 ctrl_param; |
| 128 | }; |
| 129 | |
Corentin Chary | 8c1b2d8 | 2010-11-29 08:14:09 +0100 | [diff] [blame] | 130 | /* |
| 131 | * eeepc-wmi/ - debugfs root directory |
| 132 | * dev_id - current dev_id |
| 133 | * ctrl_param - current ctrl_param |
| 134 | * devs - call DEVS(dev_id, ctrl_param) and print result |
| 135 | * dsts - call DSTS(dev_id) and print result |
| 136 | */ |
| 137 | struct eeepc_wmi_debug { |
| 138 | struct dentry *root; |
| 139 | u32 dev_id; |
| 140 | u32 ctrl_param; |
| 141 | }; |
| 142 | |
Yong Wang | 8124888 | 2010-04-11 09:26:33 +0800 | [diff] [blame] | 143 | struct eeepc_wmi { |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 144 | bool hotplug_wireless; |
| 145 | |
Yong Wang | 8124888 | 2010-04-11 09:26:33 +0800 | [diff] [blame] | 146 | struct input_dev *inputdev; |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 147 | struct backlight_device *backlight_device; |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 148 | struct platform_device *platform_device; |
Corentin Chary | 084fca6 | 2010-11-29 08:14:06 +0100 | [diff] [blame] | 149 | |
| 150 | struct led_classdev tpd_led; |
| 151 | int tpd_led_wk; |
| 152 | struct workqueue_struct *led_workqueue; |
| 153 | struct work_struct tpd_led_work; |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 154 | |
| 155 | struct rfkill *wlan_rfkill; |
| 156 | struct rfkill *bluetooth_rfkill; |
Corentin Chary | 2e9e159 | 2011-02-06 13:28:37 +0100 | [diff] [blame] | 157 | struct rfkill *wimax_rfkill; |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 158 | struct rfkill *wwan3g_rfkill; |
Corentin Chary | 8c1b2d8 | 2010-11-29 08:14:09 +0100 | [diff] [blame] | 159 | |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 160 | struct hotplug_slot *hotplug_slot; |
| 161 | struct mutex hotplug_lock; |
Corentin Chary | 279f8f9 | 2011-02-06 13:28:29 +0100 | [diff] [blame] | 162 | struct mutex wmi_lock; |
| 163 | struct workqueue_struct *hotplug_workqueue; |
| 164 | struct work_struct hotplug_work; |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 165 | |
Corentin Chary | 8c1b2d8 | 2010-11-29 08:14:09 +0100 | [diff] [blame] | 166 | struct eeepc_wmi_debug debug; |
Yong Wang | 8124888 | 2010-04-11 09:26:33 +0800 | [diff] [blame] | 167 | }; |
| 168 | |
Yong Wang | 8124888 | 2010-04-11 09:26:33 +0800 | [diff] [blame] | 169 | static int eeepc_wmi_input_init(struct eeepc_wmi *eeepc) |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 170 | { |
| 171 | int err; |
| 172 | |
Yong Wang | 8124888 | 2010-04-11 09:26:33 +0800 | [diff] [blame] | 173 | eeepc->inputdev = input_allocate_device(); |
| 174 | if (!eeepc->inputdev) |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 175 | return -ENOMEM; |
| 176 | |
Yong Wang | 8124888 | 2010-04-11 09:26:33 +0800 | [diff] [blame] | 177 | eeepc->inputdev->name = "Eee PC WMI hotkeys"; |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 178 | eeepc->inputdev->phys = EEEPC_WMI_FILE "/input0"; |
Yong Wang | 8124888 | 2010-04-11 09:26:33 +0800 | [diff] [blame] | 179 | eeepc->inputdev->id.bustype = BUS_HOST; |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 180 | eeepc->inputdev->dev.parent = &eeepc->platform_device->dev; |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 181 | |
Yong Wang | 8124888 | 2010-04-11 09:26:33 +0800 | [diff] [blame] | 182 | err = sparse_keymap_setup(eeepc->inputdev, eeepc_wmi_keymap, NULL); |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 183 | if (err) |
| 184 | goto err_free_dev; |
| 185 | |
Yong Wang | 8124888 | 2010-04-11 09:26:33 +0800 | [diff] [blame] | 186 | err = input_register_device(eeepc->inputdev); |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 187 | if (err) |
| 188 | goto err_free_keymap; |
| 189 | |
| 190 | return 0; |
| 191 | |
| 192 | err_free_keymap: |
Yong Wang | 8124888 | 2010-04-11 09:26:33 +0800 | [diff] [blame] | 193 | sparse_keymap_free(eeepc->inputdev); |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 194 | err_free_dev: |
Yong Wang | 8124888 | 2010-04-11 09:26:33 +0800 | [diff] [blame] | 195 | input_free_device(eeepc->inputdev); |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 196 | return err; |
| 197 | } |
| 198 | |
Yong Wang | 8124888 | 2010-04-11 09:26:33 +0800 | [diff] [blame] | 199 | static void eeepc_wmi_input_exit(struct eeepc_wmi *eeepc) |
| 200 | { |
| 201 | if (eeepc->inputdev) { |
| 202 | sparse_keymap_free(eeepc->inputdev); |
| 203 | input_unregister_device(eeepc->inputdev); |
| 204 | } |
| 205 | |
| 206 | eeepc->inputdev = NULL; |
| 207 | } |
| 208 | |
Corentin Chary | 2a3f006 | 2010-11-29 08:14:10 +0100 | [diff] [blame] | 209 | static acpi_status eeepc_wmi_get_devstate(u32 dev_id, u32 *retval) |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 210 | { |
| 211 | struct acpi_buffer input = { (acpi_size)sizeof(u32), &dev_id }; |
| 212 | struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 213 | union acpi_object *obj; |
| 214 | acpi_status status; |
| 215 | u32 tmp; |
| 216 | |
| 217 | status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID, |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 218 | 1, EEEPC_WMI_METHODID_DSTS, |
| 219 | &input, &output); |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 220 | |
| 221 | if (ACPI_FAILURE(status)) |
| 222 | return status; |
| 223 | |
| 224 | obj = (union acpi_object *)output.pointer; |
| 225 | if (obj && obj->type == ACPI_TYPE_INTEGER) |
| 226 | tmp = (u32)obj->integer.value; |
| 227 | else |
| 228 | tmp = 0; |
| 229 | |
Corentin Chary | 2a3f006 | 2010-11-29 08:14:10 +0100 | [diff] [blame] | 230 | if (retval) |
| 231 | *retval = tmp; |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 232 | |
| 233 | kfree(obj); |
| 234 | |
| 235 | return status; |
| 236 | |
| 237 | } |
| 238 | |
Corentin Chary | 8c1b2d8 | 2010-11-29 08:14:09 +0100 | [diff] [blame] | 239 | static acpi_status eeepc_wmi_set_devstate(u32 dev_id, u32 ctrl_param, |
| 240 | u32 *retval) |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 241 | { |
| 242 | struct bios_args args = { |
| 243 | .dev_id = dev_id, |
| 244 | .ctrl_param = ctrl_param, |
| 245 | }; |
| 246 | struct acpi_buffer input = { (acpi_size)sizeof(args), &args }; |
| 247 | acpi_status status; |
| 248 | |
Corentin Chary | 8c1b2d8 | 2010-11-29 08:14:09 +0100 | [diff] [blame] | 249 | if (!retval) { |
| 250 | status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID, 1, |
| 251 | EEEPC_WMI_METHODID_DEVS, |
| 252 | &input, NULL); |
| 253 | } else { |
| 254 | struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 255 | union acpi_object *obj; |
| 256 | u32 tmp; |
| 257 | |
| 258 | status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID, 1, |
| 259 | EEEPC_WMI_METHODID_DEVS, |
| 260 | &input, &output); |
| 261 | |
| 262 | if (ACPI_FAILURE(status)) |
| 263 | return status; |
| 264 | |
| 265 | obj = (union acpi_object *)output.pointer; |
| 266 | if (obj && obj->type == ACPI_TYPE_INTEGER) |
| 267 | tmp = (u32)obj->integer.value; |
| 268 | else |
| 269 | tmp = 0; |
| 270 | |
| 271 | *retval = tmp; |
| 272 | |
| 273 | kfree(obj); |
| 274 | } |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 275 | |
| 276 | return status; |
| 277 | } |
| 278 | |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 279 | /* Helper for special devices with magic return codes */ |
Corentin Chary | b718726 | 2011-02-06 13:28:39 +0100 | [diff] [blame] | 280 | static int eeepc_wmi_get_devstate_bits(u32 dev_id, u32 mask) |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 281 | { |
| 282 | u32 retval = 0; |
| 283 | acpi_status status; |
| 284 | |
| 285 | status = eeepc_wmi_get_devstate(dev_id, &retval); |
| 286 | |
| 287 | if (ACPI_FAILURE(status)) |
| 288 | return -EINVAL; |
| 289 | |
Corentin Chary | aafa719 | 2011-02-06 13:28:35 +0100 | [diff] [blame] | 290 | if (!(retval & EEEPC_WMI_DSTS_PRESENCE_BIT)) |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 291 | return -ENODEV; |
| 292 | |
Corentin Chary | b718726 | 2011-02-06 13:28:39 +0100 | [diff] [blame] | 293 | return retval & mask; |
| 294 | } |
| 295 | |
| 296 | static int eeepc_wmi_get_devstate_simple(u32 dev_id) |
| 297 | { |
| 298 | return eeepc_wmi_get_devstate_bits(dev_id, EEEPC_WMI_DSTS_STATUS_BIT); |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 299 | } |
| 300 | |
Corentin Chary | 084fca6 | 2010-11-29 08:14:06 +0100 | [diff] [blame] | 301 | /* |
| 302 | * LEDs |
| 303 | */ |
| 304 | /* |
| 305 | * These functions actually update the LED's, and are called from a |
| 306 | * workqueue. By doing this as separate work rather than when the LED |
| 307 | * subsystem asks, we avoid messing with the Eeepc ACPI stuff during a |
| 308 | * potentially bad time, such as a timer interrupt. |
| 309 | */ |
| 310 | static void tpd_led_update(struct work_struct *work) |
| 311 | { |
| 312 | int ctrl_param; |
| 313 | struct eeepc_wmi *eeepc; |
| 314 | |
| 315 | eeepc = container_of(work, struct eeepc_wmi, tpd_led_work); |
| 316 | |
| 317 | ctrl_param = eeepc->tpd_led_wk; |
Corentin Chary | 8571d75 | 2011-02-06 13:28:41 +0100 | [diff] [blame] | 318 | eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL); |
Corentin Chary | 084fca6 | 2010-11-29 08:14:06 +0100 | [diff] [blame] | 319 | } |
| 320 | |
| 321 | static void tpd_led_set(struct led_classdev *led_cdev, |
| 322 | enum led_brightness value) |
| 323 | { |
| 324 | struct eeepc_wmi *eeepc; |
| 325 | |
| 326 | eeepc = container_of(led_cdev, struct eeepc_wmi, tpd_led); |
| 327 | |
| 328 | eeepc->tpd_led_wk = !!value; |
| 329 | queue_work(eeepc->led_workqueue, &eeepc->tpd_led_work); |
| 330 | } |
| 331 | |
Corentin Chary | 8571d75 | 2011-02-06 13:28:41 +0100 | [diff] [blame] | 332 | static int read_tpd_led_state(struct eeepc_wmi *eeepc) |
Corentin Chary | 084fca6 | 2010-11-29 08:14:06 +0100 | [diff] [blame] | 333 | { |
Corentin Chary | 8571d75 | 2011-02-06 13:28:41 +0100 | [diff] [blame] | 334 | return eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_TOUCHPAD_LED); |
Corentin Chary | 084fca6 | 2010-11-29 08:14:06 +0100 | [diff] [blame] | 335 | } |
| 336 | |
| 337 | static enum led_brightness tpd_led_get(struct led_classdev *led_cdev) |
| 338 | { |
| 339 | struct eeepc_wmi *eeepc; |
| 340 | |
| 341 | eeepc = container_of(led_cdev, struct eeepc_wmi, tpd_led); |
| 342 | |
Corentin Chary | 8571d75 | 2011-02-06 13:28:41 +0100 | [diff] [blame] | 343 | return read_tpd_led_state(eeepc); |
Corentin Chary | 084fca6 | 2010-11-29 08:14:06 +0100 | [diff] [blame] | 344 | } |
| 345 | |
| 346 | static int eeepc_wmi_led_init(struct eeepc_wmi *eeepc) |
| 347 | { |
| 348 | int rv; |
| 349 | |
Corentin Chary | 8571d75 | 2011-02-06 13:28:41 +0100 | [diff] [blame] | 350 | if (read_tpd_led_state(eeepc) < 0) |
Corentin Chary | 084fca6 | 2010-11-29 08:14:06 +0100 | [diff] [blame] | 351 | return 0; |
| 352 | |
| 353 | eeepc->led_workqueue = create_singlethread_workqueue("led_workqueue"); |
| 354 | if (!eeepc->led_workqueue) |
| 355 | return -ENOMEM; |
| 356 | INIT_WORK(&eeepc->tpd_led_work, tpd_led_update); |
| 357 | |
| 358 | eeepc->tpd_led.name = "eeepc::touchpad"; |
| 359 | eeepc->tpd_led.brightness_set = tpd_led_set; |
| 360 | eeepc->tpd_led.brightness_get = tpd_led_get; |
| 361 | eeepc->tpd_led.max_brightness = 1; |
| 362 | |
| 363 | rv = led_classdev_register(&eeepc->platform_device->dev, |
| 364 | &eeepc->tpd_led); |
| 365 | if (rv) { |
| 366 | destroy_workqueue(eeepc->led_workqueue); |
| 367 | return rv; |
| 368 | } |
| 369 | |
| 370 | return 0; |
| 371 | } |
| 372 | |
| 373 | static void eeepc_wmi_led_exit(struct eeepc_wmi *eeepc) |
| 374 | { |
| 375 | if (eeepc->tpd_led.dev) |
| 376 | led_classdev_unregister(&eeepc->tpd_led); |
| 377 | if (eeepc->led_workqueue) |
| 378 | destroy_workqueue(eeepc->led_workqueue); |
| 379 | } |
| 380 | |
| 381 | /* |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 382 | * PCI hotplug (for wlan rfkill) |
| 383 | */ |
| 384 | static bool eeepc_wlan_rfkill_blocked(struct eeepc_wmi *eeepc) |
| 385 | { |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 386 | int result = eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WLAN); |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 387 | |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 388 | if (result < 0) |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 389 | return false; |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 390 | return !result; |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 391 | } |
| 392 | |
| 393 | static void eeepc_rfkill_hotplug(struct eeepc_wmi *eeepc) |
| 394 | { |
| 395 | struct pci_dev *dev; |
| 396 | struct pci_bus *bus; |
Corentin Chary | 279f8f9 | 2011-02-06 13:28:29 +0100 | [diff] [blame] | 397 | bool blocked; |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 398 | bool absent; |
| 399 | u32 l; |
| 400 | |
Corentin Chary | 279f8f9 | 2011-02-06 13:28:29 +0100 | [diff] [blame] | 401 | mutex_lock(&eeepc->wmi_lock); |
| 402 | blocked = eeepc_wlan_rfkill_blocked(eeepc); |
| 403 | mutex_unlock(&eeepc->wmi_lock); |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 404 | |
| 405 | mutex_lock(&eeepc->hotplug_lock); |
| 406 | |
Corentin Chary | 279f8f9 | 2011-02-06 13:28:29 +0100 | [diff] [blame] | 407 | if (eeepc->wlan_rfkill) |
| 408 | rfkill_set_sw_state(eeepc->wlan_rfkill, blocked); |
| 409 | |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 410 | if (eeepc->hotplug_slot) { |
| 411 | bus = pci_find_bus(0, 1); |
| 412 | if (!bus) { |
| 413 | pr_warning("Unable to find PCI bus 1?\n"); |
| 414 | goto out_unlock; |
| 415 | } |
| 416 | |
| 417 | if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) { |
| 418 | pr_err("Unable to read PCI config space?\n"); |
| 419 | goto out_unlock; |
| 420 | } |
| 421 | absent = (l == 0xffffffff); |
| 422 | |
| 423 | if (blocked != absent) { |
| 424 | pr_warning("BIOS says wireless lan is %s, " |
| 425 | "but the pci device is %s\n", |
| 426 | blocked ? "blocked" : "unblocked", |
| 427 | absent ? "absent" : "present"); |
| 428 | pr_warning("skipped wireless hotplug as probably " |
| 429 | "inappropriate for this model\n"); |
| 430 | goto out_unlock; |
| 431 | } |
| 432 | |
| 433 | if (!blocked) { |
| 434 | dev = pci_get_slot(bus, 0); |
| 435 | if (dev) { |
| 436 | /* Device already present */ |
| 437 | pci_dev_put(dev); |
| 438 | goto out_unlock; |
| 439 | } |
| 440 | dev = pci_scan_single_device(bus, 0); |
| 441 | if (dev) { |
| 442 | pci_bus_assign_resources(bus); |
| 443 | if (pci_bus_add_device(dev)) |
| 444 | pr_err("Unable to hotplug wifi\n"); |
| 445 | } |
| 446 | } else { |
| 447 | dev = pci_get_slot(bus, 0); |
| 448 | if (dev) { |
| 449 | pci_remove_bus_device(dev); |
| 450 | pci_dev_put(dev); |
| 451 | } |
| 452 | } |
| 453 | } |
| 454 | |
| 455 | out_unlock: |
| 456 | mutex_unlock(&eeepc->hotplug_lock); |
| 457 | } |
| 458 | |
| 459 | static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) |
| 460 | { |
| 461 | struct eeepc_wmi *eeepc = data; |
| 462 | |
| 463 | if (event != ACPI_NOTIFY_BUS_CHECK) |
| 464 | return; |
| 465 | |
Corentin Chary | 279f8f9 | 2011-02-06 13:28:29 +0100 | [diff] [blame] | 466 | /* |
| 467 | * We can't call directly eeepc_rfkill_hotplug because most |
| 468 | * of the time WMBC is still being executed and not reetrant. |
| 469 | * There is currently no way to tell ACPICA that we want this |
| 470 | * method to be serialized, we schedule a eeepc_rfkill_hotplug |
| 471 | * call later, in a safer context. |
| 472 | */ |
| 473 | queue_work(eeepc->hotplug_workqueue, &eeepc->hotplug_work); |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 474 | } |
| 475 | |
| 476 | static int eeepc_register_rfkill_notifier(struct eeepc_wmi *eeepc, |
| 477 | char *node) |
| 478 | { |
| 479 | acpi_status status; |
| 480 | acpi_handle handle; |
| 481 | |
| 482 | status = acpi_get_handle(NULL, node, &handle); |
| 483 | |
| 484 | if (ACPI_SUCCESS(status)) { |
| 485 | status = acpi_install_notify_handler(handle, |
| 486 | ACPI_SYSTEM_NOTIFY, |
| 487 | eeepc_rfkill_notify, |
| 488 | eeepc); |
| 489 | if (ACPI_FAILURE(status)) |
| 490 | pr_warning("Failed to register notify on %s\n", node); |
| 491 | } else |
| 492 | return -ENODEV; |
| 493 | |
| 494 | return 0; |
| 495 | } |
| 496 | |
| 497 | static void eeepc_unregister_rfkill_notifier(struct eeepc_wmi *eeepc, |
| 498 | char *node) |
| 499 | { |
| 500 | acpi_status status = AE_OK; |
| 501 | acpi_handle handle; |
| 502 | |
| 503 | status = acpi_get_handle(NULL, node, &handle); |
| 504 | |
| 505 | if (ACPI_SUCCESS(status)) { |
| 506 | status = acpi_remove_notify_handler(handle, |
| 507 | ACPI_SYSTEM_NOTIFY, |
| 508 | eeepc_rfkill_notify); |
| 509 | if (ACPI_FAILURE(status)) |
| 510 | pr_err("Error removing rfkill notify handler %s\n", |
| 511 | node); |
| 512 | } |
| 513 | } |
| 514 | |
| 515 | static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot, |
| 516 | u8 *value) |
| 517 | { |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 518 | int result = eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WLAN); |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 519 | |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 520 | if (result < 0) |
| 521 | return result; |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 522 | |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 523 | *value = !!result; |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 524 | return 0; |
| 525 | } |
| 526 | |
| 527 | static void eeepc_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot) |
| 528 | { |
| 529 | kfree(hotplug_slot->info); |
| 530 | kfree(hotplug_slot); |
| 531 | } |
| 532 | |
| 533 | static struct hotplug_slot_ops eeepc_hotplug_slot_ops = { |
| 534 | .owner = THIS_MODULE, |
| 535 | .get_adapter_status = eeepc_get_adapter_status, |
| 536 | .get_power_status = eeepc_get_adapter_status, |
| 537 | }; |
| 538 | |
Corentin Chary | 279f8f9 | 2011-02-06 13:28:29 +0100 | [diff] [blame] | 539 | static void eeepc_hotplug_work(struct work_struct *work) |
| 540 | { |
| 541 | struct eeepc_wmi *eeepc; |
| 542 | |
| 543 | eeepc = container_of(work, struct eeepc_wmi, hotplug_work); |
| 544 | eeepc_rfkill_hotplug(eeepc); |
| 545 | } |
| 546 | |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 547 | static int eeepc_setup_pci_hotplug(struct eeepc_wmi *eeepc) |
| 548 | { |
| 549 | int ret = -ENOMEM; |
| 550 | struct pci_bus *bus = pci_find_bus(0, 1); |
| 551 | |
| 552 | if (!bus) { |
| 553 | pr_err("Unable to find wifi PCI bus\n"); |
| 554 | return -ENODEV; |
| 555 | } |
| 556 | |
Corentin Chary | 279f8f9 | 2011-02-06 13:28:29 +0100 | [diff] [blame] | 557 | eeepc->hotplug_workqueue = |
| 558 | create_singlethread_workqueue("hotplug_workqueue"); |
| 559 | if (!eeepc->hotplug_workqueue) |
| 560 | goto error_workqueue; |
| 561 | |
| 562 | INIT_WORK(&eeepc->hotplug_work, eeepc_hotplug_work); |
| 563 | |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 564 | eeepc->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL); |
| 565 | if (!eeepc->hotplug_slot) |
| 566 | goto error_slot; |
| 567 | |
| 568 | eeepc->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info), |
| 569 | GFP_KERNEL); |
| 570 | if (!eeepc->hotplug_slot->info) |
| 571 | goto error_info; |
| 572 | |
| 573 | eeepc->hotplug_slot->private = eeepc; |
| 574 | eeepc->hotplug_slot->release = &eeepc_cleanup_pci_hotplug; |
| 575 | eeepc->hotplug_slot->ops = &eeepc_hotplug_slot_ops; |
| 576 | eeepc_get_adapter_status(eeepc->hotplug_slot, |
| 577 | &eeepc->hotplug_slot->info->adapter_status); |
| 578 | |
| 579 | ret = pci_hp_register(eeepc->hotplug_slot, bus, 0, "eeepc-wifi"); |
| 580 | if (ret) { |
| 581 | pr_err("Unable to register hotplug slot - %d\n", ret); |
| 582 | goto error_register; |
| 583 | } |
| 584 | |
| 585 | return 0; |
| 586 | |
| 587 | error_register: |
| 588 | kfree(eeepc->hotplug_slot->info); |
| 589 | error_info: |
| 590 | kfree(eeepc->hotplug_slot); |
| 591 | eeepc->hotplug_slot = NULL; |
| 592 | error_slot: |
Corentin Chary | 279f8f9 | 2011-02-06 13:28:29 +0100 | [diff] [blame] | 593 | destroy_workqueue(eeepc->hotplug_workqueue); |
| 594 | error_workqueue: |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 595 | return ret; |
| 596 | } |
| 597 | |
| 598 | /* |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 599 | * Rfkill devices |
| 600 | */ |
| 601 | static int eeepc_rfkill_set(void *data, bool blocked) |
| 602 | { |
| 603 | int dev_id = (unsigned long)data; |
| 604 | u32 ctrl_param = !blocked; |
Corentin Chary | 7898cf1 | 2011-02-06 13:28:30 +0100 | [diff] [blame] | 605 | acpi_status status; |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 606 | |
Corentin Chary | 7898cf1 | 2011-02-06 13:28:30 +0100 | [diff] [blame] | 607 | status = eeepc_wmi_set_devstate(dev_id, ctrl_param, NULL); |
| 608 | |
| 609 | if (ACPI_FAILURE(status)) |
| 610 | return -EIO; |
| 611 | |
| 612 | return 0; |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 613 | } |
| 614 | |
| 615 | static void eeepc_rfkill_query(struct rfkill *rfkill, void *data) |
| 616 | { |
| 617 | int dev_id = (unsigned long)data; |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 618 | int result; |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 619 | |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 620 | result = eeepc_wmi_get_devstate_simple(dev_id); |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 621 | |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 622 | if (result < 0) |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 623 | return ; |
| 624 | |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 625 | rfkill_set_sw_state(rfkill, !result); |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 626 | } |
| 627 | |
Corentin Chary | 279f8f9 | 2011-02-06 13:28:29 +0100 | [diff] [blame] | 628 | static int eeepc_rfkill_wlan_set(void *data, bool blocked) |
| 629 | { |
| 630 | struct eeepc_wmi *eeepc = data; |
| 631 | int ret; |
| 632 | |
| 633 | /* |
| 634 | * This handler is enabled only if hotplug is enabled. |
| 635 | * In this case, the eeepc_wmi_set_devstate() will |
| 636 | * trigger a wmi notification and we need to wait |
| 637 | * this call to finish before being able to call |
| 638 | * any wmi method |
| 639 | */ |
| 640 | mutex_lock(&eeepc->wmi_lock); |
| 641 | ret = eeepc_rfkill_set((void *)(long)EEEPC_WMI_DEVID_WLAN, blocked); |
| 642 | mutex_unlock(&eeepc->wmi_lock); |
| 643 | return ret; |
| 644 | } |
| 645 | |
| 646 | static void eeepc_rfkill_wlan_query(struct rfkill *rfkill, void *data) |
| 647 | { |
| 648 | eeepc_rfkill_query(rfkill, (void *)(long)EEEPC_WMI_DEVID_WLAN); |
| 649 | } |
| 650 | |
| 651 | static const struct rfkill_ops eeepc_rfkill_wlan_ops = { |
| 652 | .set_block = eeepc_rfkill_wlan_set, |
| 653 | .query = eeepc_rfkill_wlan_query, |
| 654 | }; |
| 655 | |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 656 | static const struct rfkill_ops eeepc_rfkill_ops = { |
| 657 | .set_block = eeepc_rfkill_set, |
| 658 | .query = eeepc_rfkill_query, |
| 659 | }; |
| 660 | |
| 661 | static int eeepc_new_rfkill(struct eeepc_wmi *eeepc, |
| 662 | struct rfkill **rfkill, |
| 663 | const char *name, |
| 664 | enum rfkill_type type, int dev_id) |
| 665 | { |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 666 | int result = eeepc_wmi_get_devstate_simple(dev_id); |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 667 | |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 668 | if (result < 0) |
| 669 | return result; |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 670 | |
Corentin Chary | 279f8f9 | 2011-02-06 13:28:29 +0100 | [diff] [blame] | 671 | if (dev_id == EEEPC_WMI_DEVID_WLAN && eeepc->hotplug_wireless) |
| 672 | *rfkill = rfkill_alloc(name, &eeepc->platform_device->dev, type, |
| 673 | &eeepc_rfkill_wlan_ops, eeepc); |
| 674 | else |
| 675 | *rfkill = rfkill_alloc(name, &eeepc->platform_device->dev, type, |
| 676 | &eeepc_rfkill_ops, (void *)(long)dev_id); |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 677 | |
| 678 | if (!*rfkill) |
| 679 | return -EINVAL; |
| 680 | |
Corentin Chary | 5c95638 | 2011-02-06 13:28:31 +0100 | [diff] [blame] | 681 | rfkill_init_sw_state(*rfkill, !result); |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 682 | result = rfkill_register(*rfkill); |
| 683 | if (result) { |
| 684 | rfkill_destroy(*rfkill); |
| 685 | *rfkill = NULL; |
| 686 | return result; |
| 687 | } |
| 688 | return 0; |
| 689 | } |
| 690 | |
| 691 | static void eeepc_wmi_rfkill_exit(struct eeepc_wmi *eeepc) |
| 692 | { |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 693 | eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5"); |
| 694 | eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6"); |
| 695 | eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7"); |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 696 | if (eeepc->wlan_rfkill) { |
| 697 | rfkill_unregister(eeepc->wlan_rfkill); |
| 698 | rfkill_destroy(eeepc->wlan_rfkill); |
| 699 | eeepc->wlan_rfkill = NULL; |
| 700 | } |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 701 | /* |
| 702 | * Refresh pci hotplug in case the rfkill state was changed after |
| 703 | * eeepc_unregister_rfkill_notifier() |
| 704 | */ |
| 705 | eeepc_rfkill_hotplug(eeepc); |
| 706 | if (eeepc->hotplug_slot) |
| 707 | pci_hp_deregister(eeepc->hotplug_slot); |
Corentin Chary | 279f8f9 | 2011-02-06 13:28:29 +0100 | [diff] [blame] | 708 | if (eeepc->hotplug_workqueue) |
| 709 | destroy_workqueue(eeepc->hotplug_workqueue); |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 710 | |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 711 | if (eeepc->bluetooth_rfkill) { |
| 712 | rfkill_unregister(eeepc->bluetooth_rfkill); |
| 713 | rfkill_destroy(eeepc->bluetooth_rfkill); |
| 714 | eeepc->bluetooth_rfkill = NULL; |
| 715 | } |
Corentin Chary | 2e9e159 | 2011-02-06 13:28:37 +0100 | [diff] [blame] | 716 | if (eeepc->wimax_rfkill) { |
| 717 | rfkill_unregister(eeepc->wimax_rfkill); |
| 718 | rfkill_destroy(eeepc->wimax_rfkill); |
| 719 | eeepc->wimax_rfkill = NULL; |
| 720 | } |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 721 | if (eeepc->wwan3g_rfkill) { |
| 722 | rfkill_unregister(eeepc->wwan3g_rfkill); |
| 723 | rfkill_destroy(eeepc->wwan3g_rfkill); |
| 724 | eeepc->wwan3g_rfkill = NULL; |
| 725 | } |
| 726 | } |
| 727 | |
| 728 | static int eeepc_wmi_rfkill_init(struct eeepc_wmi *eeepc) |
| 729 | { |
| 730 | int result = 0; |
| 731 | |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 732 | mutex_init(&eeepc->hotplug_lock); |
Corentin Chary | 279f8f9 | 2011-02-06 13:28:29 +0100 | [diff] [blame] | 733 | mutex_init(&eeepc->wmi_lock); |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 734 | |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 735 | result = eeepc_new_rfkill(eeepc, &eeepc->wlan_rfkill, |
| 736 | "eeepc-wlan", RFKILL_TYPE_WLAN, |
| 737 | EEEPC_WMI_DEVID_WLAN); |
| 738 | |
| 739 | if (result && result != -ENODEV) |
| 740 | goto exit; |
| 741 | |
| 742 | result = eeepc_new_rfkill(eeepc, &eeepc->bluetooth_rfkill, |
| 743 | "eeepc-bluetooth", RFKILL_TYPE_BLUETOOTH, |
| 744 | EEEPC_WMI_DEVID_BLUETOOTH); |
| 745 | |
| 746 | if (result && result != -ENODEV) |
| 747 | goto exit; |
| 748 | |
Corentin Chary | 2e9e159 | 2011-02-06 13:28:37 +0100 | [diff] [blame] | 749 | result = eeepc_new_rfkill(eeepc, &eeepc->wimax_rfkill, |
| 750 | "eeepc-wimax", RFKILL_TYPE_WIMAX, |
| 751 | EEEPC_WMI_DEVID_WIMAX); |
| 752 | |
| 753 | if (result && result != -ENODEV) |
| 754 | goto exit; |
| 755 | |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 756 | result = eeepc_new_rfkill(eeepc, &eeepc->wwan3g_rfkill, |
| 757 | "eeepc-wwan3g", RFKILL_TYPE_WWAN, |
| 758 | EEEPC_WMI_DEVID_WWAN3G); |
| 759 | |
| 760 | if (result && result != -ENODEV) |
| 761 | goto exit; |
| 762 | |
Corentin Chary | c14d4b8 | 2011-02-06 13:28:40 +0100 | [diff] [blame] | 763 | if (!eeepc->hotplug_wireless) |
| 764 | goto exit; |
| 765 | |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 766 | result = eeepc_setup_pci_hotplug(eeepc); |
| 767 | /* |
| 768 | * If we get -EBUSY then something else is handling the PCI hotplug - |
| 769 | * don't fail in this case |
| 770 | */ |
| 771 | if (result == -EBUSY) |
| 772 | result = 0; |
| 773 | |
| 774 | eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5"); |
| 775 | eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6"); |
| 776 | eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7"); |
| 777 | /* |
| 778 | * Refresh pci hotplug in case the rfkill state was changed during |
| 779 | * setup. |
| 780 | */ |
| 781 | eeepc_rfkill_hotplug(eeepc); |
| 782 | |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 783 | exit: |
| 784 | if (result && result != -ENODEV) |
| 785 | eeepc_wmi_rfkill_exit(eeepc); |
| 786 | |
| 787 | if (result == -ENODEV) |
| 788 | result = 0; |
| 789 | |
| 790 | return result; |
| 791 | } |
| 792 | |
| 793 | /* |
Corentin Chary | 084fca6 | 2010-11-29 08:14:06 +0100 | [diff] [blame] | 794 | * Backlight |
| 795 | */ |
Corentin Chary | b718726 | 2011-02-06 13:28:39 +0100 | [diff] [blame] | 796 | static int read_backlight_power(void) |
| 797 | { |
| 798 | int ret = eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_BACKLIGHT); |
| 799 | |
| 800 | if (ret < 0) |
| 801 | return ret; |
| 802 | |
| 803 | return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; |
| 804 | } |
| 805 | |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 806 | static int read_brightness(struct backlight_device *bd) |
| 807 | { |
Corentin Chary | dfed65d | 2010-11-29 08:14:12 +0100 | [diff] [blame] | 808 | u32 retval; |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 809 | acpi_status status; |
| 810 | |
Corentin Chary | b718726 | 2011-02-06 13:28:39 +0100 | [diff] [blame] | 811 | status = eeepc_wmi_get_devstate(EEEPC_WMI_DEVID_BRIGHTNESS, &retval); |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 812 | |
| 813 | if (ACPI_FAILURE(status)) |
Corentin Chary | b718726 | 2011-02-06 13:28:39 +0100 | [diff] [blame] | 814 | return -EIO; |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 815 | else |
Corentin Chary | b718726 | 2011-02-06 13:28:39 +0100 | [diff] [blame] | 816 | return retval & EEEPC_WMI_DSTS_BRIGHTNESS_MASK; |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 817 | } |
| 818 | |
| 819 | static int update_bl_status(struct backlight_device *bd) |
| 820 | { |
Corentin Chary | dfed65d | 2010-11-29 08:14:12 +0100 | [diff] [blame] | 821 | u32 ctrl_param; |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 822 | acpi_status status; |
Corentin Chary | b718726 | 2011-02-06 13:28:39 +0100 | [diff] [blame] | 823 | int power; |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 824 | |
| 825 | ctrl_param = bd->props.brightness; |
| 826 | |
Corentin Chary | b718726 | 2011-02-06 13:28:39 +0100 | [diff] [blame] | 827 | status = eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_BRIGHTNESS, |
Corentin Chary | 8c1b2d8 | 2010-11-29 08:14:09 +0100 | [diff] [blame] | 828 | ctrl_param, NULL); |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 829 | |
| 830 | if (ACPI_FAILURE(status)) |
Corentin Chary | b718726 | 2011-02-06 13:28:39 +0100 | [diff] [blame] | 831 | return -EIO; |
| 832 | |
| 833 | power = read_backlight_power(); |
| 834 | if (power != -ENODEV && bd->props.power != power) { |
| 835 | ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK); |
| 836 | status = eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_BACKLIGHT, |
| 837 | ctrl_param, NULL); |
| 838 | |
| 839 | if (ACPI_FAILURE(status)) |
| 840 | return -EIO; |
| 841 | } |
| 842 | return 0; |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 843 | } |
| 844 | |
| 845 | static const struct backlight_ops eeepc_wmi_bl_ops = { |
| 846 | .get_brightness = read_brightness, |
| 847 | .update_status = update_bl_status, |
| 848 | }; |
| 849 | |
| 850 | static int eeepc_wmi_backlight_notify(struct eeepc_wmi *eeepc, int code) |
| 851 | { |
| 852 | struct backlight_device *bd = eeepc->backlight_device; |
| 853 | int old = bd->props.brightness; |
Daniel Mack | b7670ed | 2010-05-19 12:37:01 +0200 | [diff] [blame] | 854 | int new = old; |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 855 | |
| 856 | if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX) |
| 857 | new = code - NOTIFY_BRNUP_MIN + 1; |
| 858 | else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX) |
| 859 | new = code - NOTIFY_BRNDOWN_MIN; |
| 860 | |
| 861 | bd->props.brightness = new; |
| 862 | backlight_update_status(bd); |
| 863 | backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY); |
| 864 | |
| 865 | return old; |
| 866 | } |
| 867 | |
| 868 | static int eeepc_wmi_backlight_init(struct eeepc_wmi *eeepc) |
| 869 | { |
| 870 | struct backlight_device *bd; |
| 871 | struct backlight_properties props; |
Corentin Chary | b718726 | 2011-02-06 13:28:39 +0100 | [diff] [blame] | 872 | int max; |
| 873 | int power; |
| 874 | |
| 875 | max = eeepc_wmi_get_devstate_bits(EEEPC_WMI_DEVID_BRIGHTNESS, |
| 876 | EEEPC_WMI_DSTS_MAX_BRIGTH_MASK); |
| 877 | power = read_backlight_power(); |
| 878 | |
| 879 | if (max < 0 && power < 0) { |
| 880 | /* Try to keep the original error */ |
| 881 | if (max == -ENODEV && power == -ENODEV) |
| 882 | return -ENODEV; |
| 883 | if (max != -ENODEV) |
| 884 | return max; |
| 885 | else |
| 886 | return power; |
| 887 | } |
| 888 | if (max == -ENODEV) |
| 889 | max = 0; |
| 890 | if (power == -ENODEV) |
| 891 | power = FB_BLANK_UNBLANK; |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 892 | |
| 893 | memset(&props, 0, sizeof(struct backlight_properties)); |
Corentin Chary | b718726 | 2011-02-06 13:28:39 +0100 | [diff] [blame] | 894 | props.max_brightness = max; |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 895 | bd = backlight_device_register(EEEPC_WMI_FILE, |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 896 | &eeepc->platform_device->dev, eeepc, |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 897 | &eeepc_wmi_bl_ops, &props); |
| 898 | if (IS_ERR(bd)) { |
| 899 | pr_err("Could not register backlight device\n"); |
| 900 | return PTR_ERR(bd); |
| 901 | } |
| 902 | |
| 903 | eeepc->backlight_device = bd; |
| 904 | |
| 905 | bd->props.brightness = read_brightness(bd); |
Corentin Chary | b718726 | 2011-02-06 13:28:39 +0100 | [diff] [blame] | 906 | bd->props.power = power; |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 907 | backlight_update_status(bd); |
| 908 | |
| 909 | return 0; |
| 910 | } |
| 911 | |
| 912 | static void eeepc_wmi_backlight_exit(struct eeepc_wmi *eeepc) |
| 913 | { |
| 914 | if (eeepc->backlight_device) |
| 915 | backlight_device_unregister(eeepc->backlight_device); |
| 916 | |
| 917 | eeepc->backlight_device = NULL; |
| 918 | } |
| 919 | |
| 920 | static void eeepc_wmi_notify(u32 value, void *context) |
| 921 | { |
| 922 | struct eeepc_wmi *eeepc = context; |
| 923 | struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 924 | union acpi_object *obj; |
| 925 | acpi_status status; |
| 926 | int code; |
| 927 | int orig_code; |
| 928 | |
| 929 | status = wmi_get_event_data(value, &response); |
| 930 | if (status != AE_OK) { |
| 931 | pr_err("bad event status 0x%x\n", status); |
| 932 | return; |
| 933 | } |
| 934 | |
| 935 | obj = (union acpi_object *)response.pointer; |
| 936 | |
| 937 | if (obj && obj->type == ACPI_TYPE_INTEGER) { |
| 938 | code = obj->integer.value; |
| 939 | orig_code = code; |
| 940 | |
| 941 | if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX) |
| 942 | code = NOTIFY_BRNUP_MIN; |
| 943 | else if (code >= NOTIFY_BRNDOWN_MIN && |
| 944 | code <= NOTIFY_BRNDOWN_MAX) |
| 945 | code = NOTIFY_BRNDOWN_MIN; |
| 946 | |
| 947 | if (code == NOTIFY_BRNUP_MIN || code == NOTIFY_BRNDOWN_MIN) { |
| 948 | if (!acpi_video_backlight_support()) |
| 949 | eeepc_wmi_backlight_notify(eeepc, orig_code); |
| 950 | } |
| 951 | |
| 952 | if (!sparse_keymap_report_event(eeepc->inputdev, |
| 953 | code, 1, true)) |
| 954 | pr_info("Unknown key %x pressed\n", code); |
| 955 | } |
| 956 | |
| 957 | kfree(obj); |
| 958 | } |
| 959 | |
Corentin Chary | 9e1565b | 2011-02-06 13:28:36 +0100 | [diff] [blame] | 960 | /* |
| 961 | * Sys helpers |
| 962 | */ |
| 963 | static int parse_arg(const char *buf, unsigned long count, int *val) |
| 964 | { |
| 965 | if (!count) |
| 966 | return 0; |
| 967 | if (sscanf(buf, "%i", val) != 1) |
| 968 | return -EINVAL; |
| 969 | return count; |
| 970 | } |
| 971 | |
| 972 | static ssize_t store_sys_wmi(int devid, const char *buf, size_t count) |
| 973 | { |
| 974 | acpi_status status; |
| 975 | u32 retval; |
| 976 | int rv, value; |
| 977 | |
| 978 | value = eeepc_wmi_get_devstate_simple(devid); |
| 979 | if (value == -ENODEV) /* Check device presence */ |
| 980 | return value; |
| 981 | |
| 982 | rv = parse_arg(buf, count, &value); |
| 983 | status = eeepc_wmi_set_devstate(devid, value, &retval); |
| 984 | |
| 985 | if (ACPI_FAILURE(status)) |
| 986 | return -EIO; |
| 987 | return rv; |
| 988 | } |
| 989 | |
| 990 | static ssize_t show_sys_wmi(int devid, char *buf) |
| 991 | { |
| 992 | int value = eeepc_wmi_get_devstate_simple(devid); |
| 993 | |
| 994 | if (value < 0) |
| 995 | return value; |
| 996 | |
| 997 | return sprintf(buf, "%d\n", value); |
| 998 | } |
| 999 | |
| 1000 | #define EEEPC_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \ |
| 1001 | static ssize_t show_##_name(struct device *dev, \ |
| 1002 | struct device_attribute *attr, \ |
| 1003 | char *buf) \ |
| 1004 | { \ |
| 1005 | return show_sys_wmi(_cm, buf); \ |
| 1006 | } \ |
| 1007 | static ssize_t store_##_name(struct device *dev, \ |
| 1008 | struct device_attribute *attr, \ |
| 1009 | const char *buf, size_t count) \ |
| 1010 | { \ |
| 1011 | return store_sys_wmi(_cm, buf, count); \ |
| 1012 | } \ |
| 1013 | static struct device_attribute dev_attr_##_name = { \ |
| 1014 | .attr = { \ |
| 1015 | .name = __stringify(_name), \ |
| 1016 | .mode = _mode }, \ |
| 1017 | .show = show_##_name, \ |
| 1018 | .store = store_##_name, \ |
| 1019 | } |
| 1020 | |
Corentin Chary | 4615bb6 | 2011-02-06 13:28:42 +0100 | [diff] [blame] | 1021 | EEEPC_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, EEEPC_WMI_DEVID_TOUCHPAD); |
Corentin Chary | 9e1565b | 2011-02-06 13:28:36 +0100 | [diff] [blame] | 1022 | EEEPC_WMI_CREATE_DEVICE_ATTR(camera, 0644, EEEPC_WMI_DEVID_CAMERA); |
| 1023 | EEEPC_WMI_CREATE_DEVICE_ATTR(cardr, 0644, EEEPC_WMI_DEVID_CARDREADER); |
| 1024 | |
Dmitry Torokhov | 67fa38e | 2010-11-03 11:14:01 -0700 | [diff] [blame] | 1025 | static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr, |
| 1026 | const char *buf, size_t count) |
Chris Bagwell | 7f80d73 | 2010-10-11 18:47:18 -0500 | [diff] [blame] | 1027 | { |
| 1028 | int value; |
| 1029 | struct acpi_buffer input = { (acpi_size)sizeof(value), &value }; |
| 1030 | acpi_status status; |
| 1031 | |
| 1032 | if (!count || sscanf(buf, "%i", &value) != 1) |
| 1033 | return -EINVAL; |
| 1034 | if (value < 0 || value > 2) |
| 1035 | return -EINVAL; |
| 1036 | |
| 1037 | status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID, |
| 1038 | 1, EEEPC_WMI_METHODID_CFVS, &input, NULL); |
| 1039 | |
| 1040 | if (ACPI_FAILURE(status)) |
| 1041 | return -EIO; |
| 1042 | else |
| 1043 | return count; |
| 1044 | } |
| 1045 | |
| 1046 | static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv); |
| 1047 | |
Corentin Chary | 4e37b42 | 2010-11-29 08:14:08 +0100 | [diff] [blame] | 1048 | static struct attribute *platform_attributes[] = { |
| 1049 | &dev_attr_cpufv.attr, |
Corentin Chary | 9e1565b | 2011-02-06 13:28:36 +0100 | [diff] [blame] | 1050 | &dev_attr_camera.attr, |
| 1051 | &dev_attr_cardr.attr, |
Corentin Chary | 4615bb6 | 2011-02-06 13:28:42 +0100 | [diff] [blame] | 1052 | &dev_attr_touchpad.attr, |
Corentin Chary | 4e37b42 | 2010-11-29 08:14:08 +0100 | [diff] [blame] | 1053 | NULL |
| 1054 | }; |
| 1055 | |
Corentin Chary | 9e1565b | 2011-02-06 13:28:36 +0100 | [diff] [blame] | 1056 | static mode_t eeepc_sysfs_is_visible(struct kobject *kobj, |
| 1057 | struct attribute *attr, |
| 1058 | int idx) |
| 1059 | { |
| 1060 | bool supported = true; |
| 1061 | int devid = -1; |
| 1062 | |
| 1063 | if (attr == &dev_attr_camera.attr) |
| 1064 | devid = EEEPC_WMI_DEVID_CAMERA; |
| 1065 | else if (attr == &dev_attr_cardr.attr) |
| 1066 | devid = EEEPC_WMI_DEVID_CARDREADER; |
Corentin Chary | 4615bb6 | 2011-02-06 13:28:42 +0100 | [diff] [blame] | 1067 | else if (attr == &dev_attr_touchpad.attr) |
| 1068 | devid = EEEPC_WMI_DEVID_TOUCHPAD; |
Corentin Chary | 9e1565b | 2011-02-06 13:28:36 +0100 | [diff] [blame] | 1069 | |
| 1070 | if (devid != -1) |
| 1071 | supported = eeepc_wmi_get_devstate_simple(devid) != -ENODEV; |
| 1072 | |
| 1073 | return supported ? attr->mode : 0; |
| 1074 | } |
| 1075 | |
Corentin Chary | 4e37b42 | 2010-11-29 08:14:08 +0100 | [diff] [blame] | 1076 | static struct attribute_group platform_attribute_group = { |
Corentin Chary | 9e1565b | 2011-02-06 13:28:36 +0100 | [diff] [blame] | 1077 | .is_visible = eeepc_sysfs_is_visible, |
| 1078 | .attrs = platform_attributes |
Corentin Chary | 4e37b42 | 2010-11-29 08:14:08 +0100 | [diff] [blame] | 1079 | }; |
| 1080 | |
Chris Bagwell | 7f80d73 | 2010-10-11 18:47:18 -0500 | [diff] [blame] | 1081 | static void eeepc_wmi_sysfs_exit(struct platform_device *device) |
| 1082 | { |
Corentin Chary | 4e37b42 | 2010-11-29 08:14:08 +0100 | [diff] [blame] | 1083 | sysfs_remove_group(&device->dev.kobj, &platform_attribute_group); |
Chris Bagwell | 7f80d73 | 2010-10-11 18:47:18 -0500 | [diff] [blame] | 1084 | } |
| 1085 | |
| 1086 | static int eeepc_wmi_sysfs_init(struct platform_device *device) |
| 1087 | { |
Corentin Chary | 4e37b42 | 2010-11-29 08:14:08 +0100 | [diff] [blame] | 1088 | return sysfs_create_group(&device->dev.kobj, &platform_attribute_group); |
Chris Bagwell | 7f80d73 | 2010-10-11 18:47:18 -0500 | [diff] [blame] | 1089 | } |
| 1090 | |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1091 | /* |
| 1092 | * Platform device |
| 1093 | */ |
| 1094 | static int __init eeepc_wmi_platform_init(struct eeepc_wmi *eeepc) |
| 1095 | { |
Corentin Chary | a04ce29 | 2011-02-06 13:28:33 +0100 | [diff] [blame] | 1096 | return eeepc_wmi_sysfs_init(eeepc->platform_device); |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1097 | } |
| 1098 | |
| 1099 | static void eeepc_wmi_platform_exit(struct eeepc_wmi *eeepc) |
| 1100 | { |
| 1101 | eeepc_wmi_sysfs_exit(eeepc->platform_device); |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1102 | } |
| 1103 | |
| 1104 | /* |
Corentin Chary | 8c1b2d8 | 2010-11-29 08:14:09 +0100 | [diff] [blame] | 1105 | * debugfs |
| 1106 | */ |
| 1107 | struct eeepc_wmi_debugfs_node { |
| 1108 | struct eeepc_wmi *eeepc; |
| 1109 | char *name; |
| 1110 | int (*show)(struct seq_file *m, void *data); |
| 1111 | }; |
| 1112 | |
| 1113 | static int show_dsts(struct seq_file *m, void *data) |
| 1114 | { |
| 1115 | struct eeepc_wmi *eeepc = m->private; |
| 1116 | acpi_status status; |
| 1117 | u32 retval = -1; |
| 1118 | |
| 1119 | status = eeepc_wmi_get_devstate(eeepc->debug.dev_id, &retval); |
| 1120 | |
| 1121 | if (ACPI_FAILURE(status)) |
| 1122 | return -EIO; |
| 1123 | |
| 1124 | seq_printf(m, "DSTS(%x) = %x\n", eeepc->debug.dev_id, retval); |
| 1125 | |
| 1126 | return 0; |
| 1127 | } |
| 1128 | |
| 1129 | static int show_devs(struct seq_file *m, void *data) |
| 1130 | { |
| 1131 | struct eeepc_wmi *eeepc = m->private; |
| 1132 | acpi_status status; |
| 1133 | u32 retval = -1; |
| 1134 | |
| 1135 | status = eeepc_wmi_set_devstate(eeepc->debug.dev_id, |
| 1136 | eeepc->debug.ctrl_param, &retval); |
| 1137 | if (ACPI_FAILURE(status)) |
| 1138 | return -EIO; |
| 1139 | |
| 1140 | seq_printf(m, "DEVS(%x, %x) = %x\n", eeepc->debug.dev_id, |
| 1141 | eeepc->debug.ctrl_param, retval); |
| 1142 | |
| 1143 | return 0; |
| 1144 | } |
| 1145 | |
| 1146 | static struct eeepc_wmi_debugfs_node eeepc_wmi_debug_files[] = { |
| 1147 | { NULL, "devs", show_devs }, |
| 1148 | { NULL, "dsts", show_dsts }, |
| 1149 | }; |
| 1150 | |
| 1151 | static int eeepc_wmi_debugfs_open(struct inode *inode, struct file *file) |
| 1152 | { |
| 1153 | struct eeepc_wmi_debugfs_node *node = inode->i_private; |
| 1154 | |
| 1155 | return single_open(file, node->show, node->eeepc); |
| 1156 | } |
| 1157 | |
| 1158 | static const struct file_operations eeepc_wmi_debugfs_io_ops = { |
| 1159 | .owner = THIS_MODULE, |
| 1160 | .open = eeepc_wmi_debugfs_open, |
| 1161 | .read = seq_read, |
| 1162 | .llseek = seq_lseek, |
| 1163 | .release = single_release, |
| 1164 | }; |
| 1165 | |
| 1166 | static void eeepc_wmi_debugfs_exit(struct eeepc_wmi *eeepc) |
| 1167 | { |
| 1168 | debugfs_remove_recursive(eeepc->debug.root); |
| 1169 | } |
| 1170 | |
| 1171 | static int eeepc_wmi_debugfs_init(struct eeepc_wmi *eeepc) |
| 1172 | { |
| 1173 | struct dentry *dent; |
| 1174 | int i; |
| 1175 | |
| 1176 | eeepc->debug.root = debugfs_create_dir(EEEPC_WMI_FILE, NULL); |
| 1177 | if (!eeepc->debug.root) { |
| 1178 | pr_err("failed to create debugfs directory"); |
| 1179 | goto error_debugfs; |
| 1180 | } |
| 1181 | |
| 1182 | dent = debugfs_create_x32("dev_id", S_IRUGO|S_IWUSR, |
| 1183 | eeepc->debug.root, &eeepc->debug.dev_id); |
| 1184 | if (!dent) |
| 1185 | goto error_debugfs; |
| 1186 | |
| 1187 | dent = debugfs_create_x32("ctrl_param", S_IRUGO|S_IWUSR, |
| 1188 | eeepc->debug.root, &eeepc->debug.ctrl_param); |
| 1189 | if (!dent) |
| 1190 | goto error_debugfs; |
| 1191 | |
| 1192 | for (i = 0; i < ARRAY_SIZE(eeepc_wmi_debug_files); i++) { |
| 1193 | struct eeepc_wmi_debugfs_node *node = &eeepc_wmi_debug_files[i]; |
| 1194 | |
| 1195 | node->eeepc = eeepc; |
| 1196 | dent = debugfs_create_file(node->name, S_IFREG | S_IRUGO, |
| 1197 | eeepc->debug.root, node, |
| 1198 | &eeepc_wmi_debugfs_io_ops); |
| 1199 | if (!dent) { |
| 1200 | pr_err("failed to create debug file: %s\n", node->name); |
| 1201 | goto error_debugfs; |
| 1202 | } |
| 1203 | } |
| 1204 | |
| 1205 | return 0; |
| 1206 | |
| 1207 | error_debugfs: |
| 1208 | eeepc_wmi_debugfs_exit(eeepc); |
| 1209 | return -ENOMEM; |
| 1210 | } |
| 1211 | |
| 1212 | /* |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1213 | * WMI Driver |
| 1214 | */ |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 1215 | static void eeepc_dmi_check(struct eeepc_wmi *eeepc) |
| 1216 | { |
| 1217 | const char *model; |
| 1218 | |
| 1219 | model = dmi_get_system_info(DMI_PRODUCT_NAME); |
| 1220 | if (!model) |
| 1221 | return; |
| 1222 | |
| 1223 | /* |
| 1224 | * Whitelist for wlan hotplug |
| 1225 | * |
| 1226 | * Eeepc 1000H needs the current hotplug code to handle |
| 1227 | * Fn+F2 correctly. We may add other Eeepc here later, but |
| 1228 | * it seems that most of the laptops supported by eeepc-wmi |
| 1229 | * don't need to be on this list |
| 1230 | */ |
| 1231 | if (strcmp(model, "1000H") == 0) { |
| 1232 | eeepc->hotplug_wireless = true; |
| 1233 | pr_info("wlan hotplug enabled\n"); |
| 1234 | } |
| 1235 | } |
| 1236 | |
Corentin Chary | a04ce29 | 2011-02-06 13:28:33 +0100 | [diff] [blame] | 1237 | static int __init eeepc_wmi_add(struct platform_device *pdev) |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 1238 | { |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1239 | struct eeepc_wmi *eeepc; |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 1240 | acpi_status status; |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1241 | int err; |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 1242 | |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1243 | eeepc = kzalloc(sizeof(struct eeepc_wmi), GFP_KERNEL); |
| 1244 | if (!eeepc) |
Corentin Chary | a04ce29 | 2011-02-06 13:28:33 +0100 | [diff] [blame] | 1245 | return -ENOMEM; |
| 1246 | |
| 1247 | eeepc->platform_device = pdev; |
| 1248 | platform_set_drvdata(eeepc->platform_device, eeepc); |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1249 | |
Corentin Chary | afa7c88 | 2011-02-06 13:28:28 +0100 | [diff] [blame] | 1250 | eeepc->hotplug_wireless = hotplug_wireless; |
| 1251 | eeepc_dmi_check(eeepc); |
| 1252 | |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1253 | err = eeepc_wmi_platform_init(eeepc); |
| 1254 | if (err) |
| 1255 | goto fail_platform; |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1256 | |
| 1257 | err = eeepc_wmi_input_init(eeepc); |
| 1258 | if (err) |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1259 | goto fail_input; |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 1260 | |
Corentin Chary | 084fca6 | 2010-11-29 08:14:06 +0100 | [diff] [blame] | 1261 | err = eeepc_wmi_led_init(eeepc); |
| 1262 | if (err) |
| 1263 | goto fail_leds; |
| 1264 | |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 1265 | err = eeepc_wmi_rfkill_init(eeepc); |
| 1266 | if (err) |
| 1267 | goto fail_rfkill; |
| 1268 | |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 1269 | if (!acpi_video_backlight_support()) { |
| 1270 | err = eeepc_wmi_backlight_init(eeepc); |
Corentin Chary | b718726 | 2011-02-06 13:28:39 +0100 | [diff] [blame] | 1271 | if (err && err != -ENODEV) |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1272 | goto fail_backlight; |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 1273 | } else |
| 1274 | pr_info("Backlight controlled by ACPI video driver\n"); |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1275 | |
| 1276 | status = wmi_install_notify_handler(EEEPC_WMI_EVENT_GUID, |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1277 | eeepc_wmi_notify, eeepc); |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1278 | if (ACPI_FAILURE(status)) { |
| 1279 | pr_err("Unable to register notify handler - %d\n", |
| 1280 | status); |
| 1281 | err = -ENODEV; |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1282 | goto fail_wmi_handler; |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1283 | } |
| 1284 | |
Corentin Chary | 8c1b2d8 | 2010-11-29 08:14:09 +0100 | [diff] [blame] | 1285 | err = eeepc_wmi_debugfs_init(eeepc); |
| 1286 | if (err) |
| 1287 | goto fail_debugfs; |
| 1288 | |
Corentin Chary | a04ce29 | 2011-02-06 13:28:33 +0100 | [diff] [blame] | 1289 | return 0; |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1290 | |
Corentin Chary | 8c1b2d8 | 2010-11-29 08:14:09 +0100 | [diff] [blame] | 1291 | fail_debugfs: |
| 1292 | wmi_remove_notify_handler(EEEPC_WMI_EVENT_GUID); |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1293 | fail_wmi_handler: |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 1294 | eeepc_wmi_backlight_exit(eeepc); |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1295 | fail_backlight: |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 1296 | eeepc_wmi_rfkill_exit(eeepc); |
| 1297 | fail_rfkill: |
Corentin Chary | 084fca6 | 2010-11-29 08:14:06 +0100 | [diff] [blame] | 1298 | eeepc_wmi_led_exit(eeepc); |
| 1299 | fail_leds: |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1300 | eeepc_wmi_input_exit(eeepc); |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1301 | fail_input: |
| 1302 | eeepc_wmi_platform_exit(eeepc); |
| 1303 | fail_platform: |
| 1304 | kfree(eeepc); |
Corentin Chary | a04ce29 | 2011-02-06 13:28:33 +0100 | [diff] [blame] | 1305 | return err; |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1306 | } |
| 1307 | |
Corentin Chary | a04ce29 | 2011-02-06 13:28:33 +0100 | [diff] [blame] | 1308 | static int __exit eeepc_wmi_remove(struct platform_device *device) |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1309 | { |
| 1310 | struct eeepc_wmi *eeepc; |
| 1311 | |
| 1312 | eeepc = platform_get_drvdata(device); |
| 1313 | wmi_remove_notify_handler(EEEPC_WMI_EVENT_GUID); |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 1314 | eeepc_wmi_backlight_exit(eeepc); |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1315 | eeepc_wmi_input_exit(eeepc); |
Corentin Chary | 084fca6 | 2010-11-29 08:14:06 +0100 | [diff] [blame] | 1316 | eeepc_wmi_led_exit(eeepc); |
Corentin Chary | ba48fdb | 2010-11-29 08:14:07 +0100 | [diff] [blame] | 1317 | eeepc_wmi_rfkill_exit(eeepc); |
Corentin Chary | 8c1b2d8 | 2010-11-29 08:14:09 +0100 | [diff] [blame] | 1318 | eeepc_wmi_debugfs_exit(eeepc); |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1319 | eeepc_wmi_platform_exit(eeepc); |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1320 | |
Corentin Chary | 27c136c | 2010-11-29 08:14:05 +0100 | [diff] [blame] | 1321 | kfree(eeepc); |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1322 | return 0; |
| 1323 | } |
| 1324 | |
Corentin Chary | 0773d7f | 2011-02-06 13:28:32 +0100 | [diff] [blame] | 1325 | /* |
| 1326 | * Platform driver - hibernate/resume callbacks |
| 1327 | */ |
| 1328 | static int eeepc_hotk_thaw(struct device *device) |
| 1329 | { |
| 1330 | struct eeepc_wmi *eeepc = dev_get_drvdata(device); |
| 1331 | |
| 1332 | if (eeepc->wlan_rfkill) { |
| 1333 | bool wlan; |
| 1334 | |
| 1335 | /* |
| 1336 | * Work around bios bug - acpi _PTS turns off the wireless led |
| 1337 | * during suspend. Normally it restores it on resume, but |
| 1338 | * we should kick it ourselves in case hibernation is aborted. |
| 1339 | */ |
| 1340 | wlan = eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WLAN); |
| 1341 | eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_WLAN, wlan, NULL); |
| 1342 | } |
| 1343 | |
| 1344 | return 0; |
| 1345 | } |
| 1346 | |
| 1347 | static int eeepc_hotk_restore(struct device *device) |
| 1348 | { |
| 1349 | struct eeepc_wmi *eeepc = dev_get_drvdata(device); |
| 1350 | int bl; |
| 1351 | |
| 1352 | /* Refresh both wlan rfkill state and pci hotplug */ |
| 1353 | if (eeepc->wlan_rfkill) |
| 1354 | eeepc_rfkill_hotplug(eeepc); |
| 1355 | |
| 1356 | if (eeepc->bluetooth_rfkill) { |
| 1357 | bl = !eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_BLUETOOTH); |
| 1358 | rfkill_set_sw_state(eeepc->bluetooth_rfkill, bl); |
Corentin Chary | 2e9e159 | 2011-02-06 13:28:37 +0100 | [diff] [blame] | 1359 | } |
| 1360 | if (eeepc->wimax_rfkill) { |
| 1361 | bl = !eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WIMAX); |
| 1362 | rfkill_set_sw_state(eeepc->wimax_rfkill, bl); |
| 1363 | } |
Corentin Chary | 0773d7f | 2011-02-06 13:28:32 +0100 | [diff] [blame] | 1364 | if (eeepc->wwan3g_rfkill) { |
| 1365 | bl = !eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WWAN3G); |
| 1366 | rfkill_set_sw_state(eeepc->wwan3g_rfkill, bl); |
| 1367 | } |
| 1368 | |
| 1369 | return 0; |
| 1370 | } |
| 1371 | |
| 1372 | static const struct dev_pm_ops eeepc_pm_ops = { |
| 1373 | .thaw = eeepc_hotk_thaw, |
| 1374 | .restore = eeepc_hotk_restore, |
| 1375 | }; |
| 1376 | |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1377 | static struct platform_driver platform_driver = { |
Corentin Chary | a04ce29 | 2011-02-06 13:28:33 +0100 | [diff] [blame] | 1378 | .remove = __exit_p(eeepc_wmi_remove), |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1379 | .driver = { |
| 1380 | .name = EEEPC_WMI_FILE, |
| 1381 | .owner = THIS_MODULE, |
Corentin Chary | 0773d7f | 2011-02-06 13:28:32 +0100 | [diff] [blame] | 1382 | .pm = &eeepc_pm_ops, |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1383 | }, |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1384 | }; |
| 1385 | |
Corentin Chary | d358cb5 | 2010-11-29 08:14:14 +0100 | [diff] [blame] | 1386 | static acpi_status __init eeepc_wmi_parse_device(acpi_handle handle, u32 level, |
| 1387 | void *context, void **retval) |
| 1388 | { |
| 1389 | pr_warning("Found legacy ATKD device (%s)", EEEPC_ACPI_HID); |
| 1390 | *(bool *)context = true; |
| 1391 | return AE_CTRL_TERMINATE; |
| 1392 | } |
| 1393 | |
| 1394 | static int __init eeepc_wmi_check_atkd(void) |
| 1395 | { |
| 1396 | acpi_status status; |
| 1397 | bool found = false; |
| 1398 | |
| 1399 | status = acpi_get_devices(EEEPC_ACPI_HID, eeepc_wmi_parse_device, |
| 1400 | &found, NULL); |
| 1401 | |
| 1402 | if (ACPI_FAILURE(status) || !found) |
| 1403 | return 0; |
| 1404 | return -1; |
| 1405 | } |
| 1406 | |
Corentin Chary | a04ce29 | 2011-02-06 13:28:33 +0100 | [diff] [blame] | 1407 | static int __init eeepc_wmi_probe(struct platform_device *pdev) |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1408 | { |
Yong Wang | 3d7b165 | 2010-04-11 09:27:54 +0800 | [diff] [blame] | 1409 | if (!wmi_has_guid(EEEPC_WMI_EVENT_GUID) || |
| 1410 | !wmi_has_guid(EEEPC_WMI_MGMT_GUID)) { |
Yong Wang | 8124888 | 2010-04-11 09:26:33 +0800 | [diff] [blame] | 1411 | pr_warning("No known WMI GUID found\n"); |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 1412 | return -ENODEV; |
| 1413 | } |
| 1414 | |
Corentin Chary | d358cb5 | 2010-11-29 08:14:14 +0100 | [diff] [blame] | 1415 | if (eeepc_wmi_check_atkd()) { |
| 1416 | pr_warning("WMI device present, but legacy ATKD device is also " |
| 1417 | "present and enabled."); |
| 1418 | pr_warning("You probably booted with acpi_osi=\"Linux\" or " |
| 1419 | "acpi_osi=\"!Windows 2009\""); |
| 1420 | pr_warning("Can't load eeepc-wmi, use default acpi_osi " |
| 1421 | "(preferred) or eeepc-laptop"); |
| 1422 | return -ENODEV; |
| 1423 | } |
| 1424 | |
Corentin Chary | a04ce29 | 2011-02-06 13:28:33 +0100 | [diff] [blame] | 1425 | return eeepc_wmi_add(pdev); |
| 1426 | } |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 1427 | |
Corentin Chary | a04ce29 | 2011-02-06 13:28:33 +0100 | [diff] [blame] | 1428 | static struct platform_device *platform_device; |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 1429 | |
Corentin Chary | a04ce29 | 2011-02-06 13:28:33 +0100 | [diff] [blame] | 1430 | static int __init eeepc_wmi_init(void) |
| 1431 | { |
| 1432 | platform_device = platform_create_bundle(&platform_driver, |
| 1433 | eeepc_wmi_probe, |
| 1434 | NULL, 0, NULL, 0); |
| 1435 | if (IS_ERR(platform_device)) |
| 1436 | return PTR_ERR(platform_device); |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 1437 | return 0; |
| 1438 | } |
| 1439 | |
| 1440 | static void __exit eeepc_wmi_exit(void) |
| 1441 | { |
Corentin Chary | a04ce29 | 2011-02-06 13:28:33 +0100 | [diff] [blame] | 1442 | platform_device_unregister(platform_device); |
Yong Wang | 45f2c69 | 2010-04-11 09:27:19 +0800 | [diff] [blame] | 1443 | platform_driver_unregister(&platform_driver); |
Yong Wang | ee027e4 | 2010-03-21 10:26:34 +0800 | [diff] [blame] | 1444 | } |
| 1445 | |
| 1446 | module_init(eeepc_wmi_init); |
| 1447 | module_exit(eeepc_wmi_exit); |