Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * acpi_ac.c - ACPI AC Adapter Driver ($Revision: 27 $) |
| 3 | * |
| 4 | * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com> |
| 5 | * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> |
| 6 | * |
| 7 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or (at |
| 12 | * your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, but |
| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * General Public License for more details. |
| 18 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 20 | */ |
| 21 | |
| 22 | #include <linux/kernel.h> |
| 23 | #include <linux/module.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 24 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | #include <linux/init.h> |
| 26 | #include <linux/types.h> |
Lan Tianyu | 0ab5bb6 | 2013-05-08 07:28:46 +0000 | [diff] [blame] | 27 | #include <linux/dmi.h> |
| 28 | #include <linux/delay.h> |
Lan Tianyu | e63f6e2 | 2014-07-07 01:13:46 +0200 | [diff] [blame] | 29 | #ifdef CONFIG_ACPI_PROCFS_POWER |
| 30 | #include <linux/proc_fs.h> |
| 31 | #include <linux/seq_file.h> |
| 32 | #endif |
Zhang Rui | cc8ef52 | 2013-09-25 20:39:45 +0800 | [diff] [blame] | 33 | #include <linux/platform_device.h> |
Alexey Starikovskiy | d5b4a3d | 2007-09-26 19:44:06 +0400 | [diff] [blame] | 34 | #include <linux/power_supply.h> |
Lv Zheng | 8b48463 | 2013-12-03 08:49:16 +0800 | [diff] [blame] | 35 | #include <linux/acpi.h> |
Alexander Mezin | 4eee4f0 | 2014-03-12 00:58:48 +0700 | [diff] [blame] | 36 | #include "battery.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | |
Len Brown | a192a95 | 2009-07-28 16:45:54 -0400 | [diff] [blame] | 38 | #define PREFIX "ACPI: " |
| 39 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | #define ACPI_AC_CLASS "ac_adapter" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | #define ACPI_AC_DEVICE_NAME "AC Adapter" |
| 42 | #define ACPI_AC_FILE_STATE "state" |
| 43 | #define ACPI_AC_NOTIFY_STATUS 0x80 |
| 44 | #define ACPI_AC_STATUS_OFFLINE 0x00 |
| 45 | #define ACPI_AC_STATUS_ONLINE 0x01 |
| 46 | #define ACPI_AC_STATUS_UNKNOWN 0xFF |
| 47 | |
| 48 | #define _COMPONENT ACPI_AC_COMPONENT |
Len Brown | f52fd66 | 2007-02-12 22:42:12 -0500 | [diff] [blame] | 49 | ACPI_MODULE_NAME("ac"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
Len Brown | f52fd66 | 2007-02-12 22:42:12 -0500 | [diff] [blame] | 51 | MODULE_AUTHOR("Paul Diefenbaugh"); |
Len Brown | 7cda93e | 2007-02-12 23:50:02 -0500 | [diff] [blame] | 52 | MODULE_DESCRIPTION("ACPI AC Adapter Driver"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | MODULE_LICENSE("GPL"); |
| 54 | |
Lan Tianyu | e63f6e2 | 2014-07-07 01:13:46 +0200 | [diff] [blame] | 55 | |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 56 | static int acpi_ac_add(struct acpi_device *device); |
| 57 | static int acpi_ac_remove(struct acpi_device *device); |
| 58 | static void acpi_ac_notify(struct acpi_device *device, u32 event); |
| 59 | |
Hans de Goede | af3ec83 | 2017-04-19 14:02:11 +0200 | [diff] [blame] | 60 | struct acpi_ac_bl { |
| 61 | const char *hid; |
| 62 | int hrv; |
| 63 | }; |
| 64 | |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 65 | static const struct acpi_device_id ac_device_ids[] = { |
| 66 | {"ACPI0003", 0}, |
| 67 | {"", 0}, |
| 68 | }; |
| 69 | MODULE_DEVICE_TABLE(acpi, ac_device_ids); |
| 70 | |
Hans de Goede | af3ec83 | 2017-04-19 14:02:11 +0200 | [diff] [blame] | 71 | /* Lists of PMIC ACPI HIDs with an (often better) native charger driver */ |
| 72 | static const struct acpi_ac_bl acpi_ac_blacklist[] = { |
| 73 | { "INT33F4", -1 }, /* X-Powers AXP288 PMIC */ |
| 74 | { "INT34D3", 3 }, /* Intel Cherrytrail Whiskey Cove PMIC */ |
| 75 | }; |
| 76 | |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 77 | #ifdef CONFIG_PM_SLEEP |
| 78 | static int acpi_ac_resume(struct device *dev); |
| 79 | #endif |
| 80 | static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume); |
| 81 | |
Lan Tianyu | e63f6e2 | 2014-07-07 01:13:46 +0200 | [diff] [blame] | 82 | #ifdef CONFIG_ACPI_PROCFS_POWER |
| 83 | extern struct proc_dir_entry *acpi_lock_ac_dir(void); |
| 84 | extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir); |
| 85 | static int acpi_ac_open_fs(struct inode *inode, struct file *file); |
| 86 | #endif |
| 87 | |
| 88 | |
Lan Tianyu | 0ab5bb6 | 2013-05-08 07:28:46 +0000 | [diff] [blame] | 89 | static int ac_sleep_before_get_state_ms; |
| 90 | |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 91 | static struct acpi_driver acpi_ac_driver = { |
| 92 | .name = "ac", |
| 93 | .class = ACPI_AC_CLASS, |
| 94 | .ids = ac_device_ids, |
| 95 | .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, |
| 96 | .ops = { |
| 97 | .add = acpi_ac_add, |
| 98 | .remove = acpi_ac_remove, |
| 99 | .notify = acpi_ac_notify, |
| 100 | }, |
| 101 | .drv.pm = &acpi_ac_pm, |
| 102 | }; |
| 103 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | struct acpi_ac { |
Krzysztof Kozlowski | 297d716 | 2015-03-12 08:44:11 +0100 | [diff] [blame] | 105 | struct power_supply *charger; |
| 106 | struct power_supply_desc charger_desc; |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 107 | struct acpi_device * device; |
Matthew Wilcox | 27663c5 | 2008-10-10 02:22:59 -0400 | [diff] [blame] | 108 | unsigned long long state; |
Alexander Mezin | 4eee4f0 | 2014-03-12 00:58:48 +0700 | [diff] [blame] | 109 | struct notifier_block battery_nb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | }; |
| 111 | |
Krzysztof Kozlowski | 297d716 | 2015-03-12 08:44:11 +0100 | [diff] [blame] | 112 | #define to_acpi_ac(x) power_supply_get_drvdata(x) |
Alexey Starikovskiy | d5b4a3d | 2007-09-26 19:44:06 +0400 | [diff] [blame] | 113 | |
Lan Tianyu | e63f6e2 | 2014-07-07 01:13:46 +0200 | [diff] [blame] | 114 | #ifdef CONFIG_ACPI_PROCFS_POWER |
| 115 | static const struct file_operations acpi_ac_fops = { |
| 116 | .owner = THIS_MODULE, |
| 117 | .open = acpi_ac_open_fs, |
| 118 | .read = seq_read, |
| 119 | .llseek = seq_lseek, |
| 120 | .release = single_release, |
| 121 | }; |
| 122 | #endif |
| 123 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | /* -------------------------------------------------------------------------- |
| 125 | AC Adapter Management |
| 126 | -------------------------------------------------------------------------- */ |
| 127 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 128 | static int acpi_ac_get_state(struct acpi_ac *ac) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | { |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 130 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 132 | if (!ac) |
| 133 | return -EINVAL; |
| 134 | |
| 135 | status = acpi_evaluate_integer(ac->device->handle, "_PSR", NULL, |
Zhang Rui | cc8ef52 | 2013-09-25 20:39:45 +0800 | [diff] [blame] | 136 | &ac->state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | if (ACPI_FAILURE(status)) { |
Zhang Rui | cc8ef52 | 2013-09-25 20:39:45 +0800 | [diff] [blame] | 138 | ACPI_EXCEPTION((AE_INFO, status, |
| 139 | "Error reading AC Adapter state")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | ac->state = ACPI_AC_STATUS_UNKNOWN; |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 141 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 143 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 144 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | } |
| 146 | |
Zhang Rui | 3151dbb | 2010-12-08 10:40:45 +0800 | [diff] [blame] | 147 | /* -------------------------------------------------------------------------- |
| 148 | sysfs I/F |
| 149 | -------------------------------------------------------------------------- */ |
| 150 | static int get_ac_property(struct power_supply *psy, |
| 151 | enum power_supply_property psp, |
| 152 | union power_supply_propval *val) |
| 153 | { |
| 154 | struct acpi_ac *ac = to_acpi_ac(psy); |
| 155 | |
| 156 | if (!ac) |
| 157 | return -ENODEV; |
| 158 | |
| 159 | if (acpi_ac_get_state(ac)) |
| 160 | return -ENODEV; |
| 161 | |
| 162 | switch (psp) { |
| 163 | case POWER_SUPPLY_PROP_ONLINE: |
| 164 | val->intval = ac->state; |
| 165 | break; |
| 166 | default: |
| 167 | return -EINVAL; |
| 168 | } |
| 169 | return 0; |
| 170 | } |
| 171 | |
| 172 | static enum power_supply_property ac_props[] = { |
| 173 | POWER_SUPPLY_PROP_ONLINE, |
| 174 | }; |
| 175 | |
Lan Tianyu | e63f6e2 | 2014-07-07 01:13:46 +0200 | [diff] [blame] | 176 | #ifdef CONFIG_ACPI_PROCFS_POWER |
| 177 | /* -------------------------------------------------------------------------- |
| 178 | FS Interface (/proc) |
| 179 | -------------------------------------------------------------------------- */ |
| 180 | |
| 181 | static struct proc_dir_entry *acpi_ac_dir; |
| 182 | |
| 183 | static int acpi_ac_seq_show(struct seq_file *seq, void *offset) |
| 184 | { |
| 185 | struct acpi_ac *ac = seq->private; |
| 186 | |
| 187 | |
| 188 | if (!ac) |
| 189 | return 0; |
| 190 | |
| 191 | if (acpi_ac_get_state(ac)) { |
| 192 | seq_puts(seq, "ERROR: Unable to read AC Adapter state\n"); |
| 193 | return 0; |
| 194 | } |
| 195 | |
| 196 | seq_puts(seq, "state: "); |
| 197 | switch (ac->state) { |
| 198 | case ACPI_AC_STATUS_OFFLINE: |
| 199 | seq_puts(seq, "off-line\n"); |
| 200 | break; |
| 201 | case ACPI_AC_STATUS_ONLINE: |
| 202 | seq_puts(seq, "on-line\n"); |
| 203 | break; |
| 204 | default: |
| 205 | seq_puts(seq, "unknown\n"); |
| 206 | break; |
| 207 | } |
| 208 | |
| 209 | return 0; |
| 210 | } |
| 211 | |
| 212 | static int acpi_ac_open_fs(struct inode *inode, struct file *file) |
| 213 | { |
| 214 | return single_open(file, acpi_ac_seq_show, PDE_DATA(inode)); |
| 215 | } |
| 216 | |
| 217 | static int acpi_ac_add_fs(struct acpi_ac *ac) |
| 218 | { |
| 219 | struct proc_dir_entry *entry = NULL; |
| 220 | |
| 221 | printk(KERN_WARNING PREFIX "Deprecated procfs I/F for AC is loaded," |
| 222 | " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n"); |
| 223 | if (!acpi_device_dir(ac->device)) { |
| 224 | acpi_device_dir(ac->device) = |
| 225 | proc_mkdir(acpi_device_bid(ac->device), acpi_ac_dir); |
| 226 | if (!acpi_device_dir(ac->device)) |
| 227 | return -ENODEV; |
| 228 | } |
| 229 | |
| 230 | /* 'state' [R] */ |
| 231 | entry = proc_create_data(ACPI_AC_FILE_STATE, |
| 232 | S_IRUGO, acpi_device_dir(ac->device), |
| 233 | &acpi_ac_fops, ac); |
| 234 | if (!entry) |
| 235 | return -ENODEV; |
| 236 | return 0; |
| 237 | } |
| 238 | |
| 239 | static int acpi_ac_remove_fs(struct acpi_ac *ac) |
| 240 | { |
| 241 | |
| 242 | if (acpi_device_dir(ac->device)) { |
| 243 | remove_proc_entry(ACPI_AC_FILE_STATE, |
| 244 | acpi_device_dir(ac->device)); |
| 245 | remove_proc_entry(acpi_device_bid(ac->device), acpi_ac_dir); |
| 246 | acpi_device_dir(ac->device) = NULL; |
| 247 | } |
| 248 | |
| 249 | return 0; |
| 250 | } |
| 251 | #endif |
| 252 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | /* -------------------------------------------------------------------------- |
| 254 | Driver Model |
| 255 | -------------------------------------------------------------------------- */ |
| 256 | |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 257 | static void acpi_ac_notify(struct acpi_device *device, u32 event) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | { |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 259 | struct acpi_ac *ac = acpi_driver_data(device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | |
| 261 | if (!ac) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 262 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | switch (event) { |
Len Brown | f163ff5 | 2008-06-14 01:26:37 -0400 | [diff] [blame] | 265 | default: |
| 266 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
| 267 | "Unsupported event [0x%x]\n", event)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | case ACPI_AC_NOTIFY_STATUS: |
Christian Lupien | 03d7825 | 2004-08-19 01:26:00 -0400 | [diff] [blame] | 269 | case ACPI_NOTIFY_BUS_CHECK: |
| 270 | case ACPI_NOTIFY_DEVICE_CHECK: |
Lan Tianyu | 0ab5bb6 | 2013-05-08 07:28:46 +0000 | [diff] [blame] | 271 | /* |
| 272 | * A buggy BIOS may notify AC first and then sleep for |
| 273 | * a specific time before doing actual operations in the |
| 274 | * EC event handler (_Qxx). This will cause the AC state |
| 275 | * reported by the ACPI event to be incorrect, so wait for a |
| 276 | * specific time for the EC event handler to make progress. |
| 277 | */ |
| 278 | if (ac_sleep_before_get_state_ms > 0) |
| 279 | msleep(ac_sleep_before_get_state_ms); |
| 280 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | acpi_ac_get_state(ac); |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 282 | acpi_bus_generate_netlink_event(device->pnp.device_class, |
| 283 | dev_name(&device->dev), event, |
| 284 | (u32) ac->state); |
| 285 | acpi_notifier_call_chain(device, event, (u32) ac->state); |
Krzysztof Kozlowski | 297d716 | 2015-03-12 08:44:11 +0100 | [diff] [blame] | 286 | kobject_uevent(&ac->charger->dev.kobj, KOBJ_CHANGE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | } |
| 288 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 289 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | } |
| 291 | |
Alexander Mezin | 4eee4f0 | 2014-03-12 00:58:48 +0700 | [diff] [blame] | 292 | static int acpi_ac_battery_notify(struct notifier_block *nb, |
| 293 | unsigned long action, void *data) |
| 294 | { |
| 295 | struct acpi_ac *ac = container_of(nb, struct acpi_ac, battery_nb); |
| 296 | struct acpi_bus_event *event = (struct acpi_bus_event *)data; |
| 297 | |
| 298 | /* |
| 299 | * On HP Pavilion dv6-6179er AC status notifications aren't triggered |
| 300 | * when adapter is plugged/unplugged. However, battery status |
| 301 | * notifcations are triggered when battery starts charging or |
| 302 | * discharging. Re-reading AC status triggers lost AC notifications, |
| 303 | * if AC status has changed. |
| 304 | */ |
| 305 | if (strcmp(event->device_class, ACPI_BATTERY_CLASS) == 0 && |
| 306 | event->type == ACPI_BATTERY_NOTIFY_STATUS) |
| 307 | acpi_ac_get_state(ac); |
| 308 | |
| 309 | return NOTIFY_OK; |
| 310 | } |
| 311 | |
Lan Tianyu | 0ab5bb6 | 2013-05-08 07:28:46 +0000 | [diff] [blame] | 312 | static int thinkpad_e530_quirk(const struct dmi_system_id *d) |
| 313 | { |
| 314 | ac_sleep_before_get_state_ms = 1000; |
| 315 | return 0; |
| 316 | } |
| 317 | |
Mathias Krause | 44f610c | 2015-06-13 14:26:49 +0200 | [diff] [blame] | 318 | static const struct dmi_system_id ac_dmi_table[] = { |
Lan Tianyu | 0ab5bb6 | 2013-05-08 07:28:46 +0000 | [diff] [blame] | 319 | { |
| 320 | .callback = thinkpad_e530_quirk, |
| 321 | .ident = "thinkpad e530", |
| 322 | .matches = { |
| 323 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
| 324 | DMI_MATCH(DMI_PRODUCT_NAME, "32597CG"), |
| 325 | }, |
| 326 | }, |
| 327 | {}, |
| 328 | }; |
| 329 | |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 330 | static int acpi_ac_add(struct acpi_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | { |
Krzysztof Kozlowski | 297d716 | 2015-03-12 08:44:11 +0100 | [diff] [blame] | 332 | struct power_supply_config psy_cfg = {}; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 333 | int result = 0; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 334 | struct acpi_ac *ac = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 336 | |
| 337 | if (!device) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 338 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | |
Burman Yan | 36bcbec | 2006-12-19 12:56:11 -0800 | [diff] [blame] | 340 | ac = kzalloc(sizeof(struct acpi_ac), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | if (!ac) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 342 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 344 | ac->device = device; |
| 345 | strcpy(acpi_device_name(device), ACPI_AC_DEVICE_NAME); |
| 346 | strcpy(acpi_device_class(device), ACPI_AC_CLASS); |
| 347 | device->driver_data = ac; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | |
| 349 | result = acpi_ac_get_state(ac); |
| 350 | if (result) |
| 351 | goto end; |
| 352 | |
Krzysztof Kozlowski | 297d716 | 2015-03-12 08:44:11 +0100 | [diff] [blame] | 353 | psy_cfg.drv_data = ac; |
| 354 | |
| 355 | ac->charger_desc.name = acpi_device_bid(device); |
Lan Tianyu | e63f6e2 | 2014-07-07 01:13:46 +0200 | [diff] [blame] | 356 | #ifdef CONFIG_ACPI_PROCFS_POWER |
| 357 | result = acpi_ac_add_fs(ac); |
| 358 | if (result) |
| 359 | goto end; |
| 360 | #endif |
Krzysztof Kozlowski | 297d716 | 2015-03-12 08:44:11 +0100 | [diff] [blame] | 361 | ac->charger_desc.type = POWER_SUPPLY_TYPE_MAINS; |
| 362 | ac->charger_desc.properties = ac_props; |
| 363 | ac->charger_desc.num_properties = ARRAY_SIZE(ac_props); |
| 364 | ac->charger_desc.get_property = get_ac_property; |
| 365 | ac->charger = power_supply_register(&ac->device->dev, |
| 366 | &ac->charger_desc, &psy_cfg); |
| 367 | if (IS_ERR(ac->charger)) { |
| 368 | result = PTR_ERR(ac->charger); |
Lan Tianyu | f197ac1 | 2012-07-20 13:29:16 +0800 | [diff] [blame] | 369 | goto end; |
Krzysztof Kozlowski | 297d716 | 2015-03-12 08:44:11 +0100 | [diff] [blame] | 370 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 372 | printk(KERN_INFO PREFIX "%s [%s] (%s)\n", |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 373 | acpi_device_name(device), acpi_device_bid(device), |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 374 | ac->state ? "on-line" : "off-line"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | |
Alexander Mezin | 4eee4f0 | 2014-03-12 00:58:48 +0700 | [diff] [blame] | 376 | ac->battery_nb.notifier_call = acpi_ac_battery_notify; |
| 377 | register_acpi_notifier(&ac->battery_nb); |
Lan Tianyu | ab0fd67 | 2013-10-12 21:04:48 +0800 | [diff] [blame] | 378 | end: |
Lan Tianyu | e63f6e2 | 2014-07-07 01:13:46 +0200 | [diff] [blame] | 379 | if (result) { |
| 380 | #ifdef CONFIG_ACPI_PROCFS_POWER |
| 381 | acpi_ac_remove_fs(ac); |
| 382 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | kfree(ac); |
Lan Tianyu | e63f6e2 | 2014-07-07 01:13:46 +0200 | [diff] [blame] | 384 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | |
Lan Tianyu | 0ab5bb6 | 2013-05-08 07:28:46 +0000 | [diff] [blame] | 386 | dmi_check_system(ac_dmi_table); |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 387 | return result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | } |
| 389 | |
Rafael J. Wysocki | 9069240 | 2012-08-09 23:00:02 +0200 | [diff] [blame] | 390 | #ifdef CONFIG_PM_SLEEP |
Rafael J. Wysocki | ccda706 | 2012-06-27 23:26:35 +0200 | [diff] [blame] | 391 | static int acpi_ac_resume(struct device *dev) |
Alexey Starikovskiy | 5bfeca3 | 2007-11-14 17:00:39 -0800 | [diff] [blame] | 392 | { |
| 393 | struct acpi_ac *ac; |
| 394 | unsigned old_state; |
Rafael J. Wysocki | ccda706 | 2012-06-27 23:26:35 +0200 | [diff] [blame] | 395 | |
| 396 | if (!dev) |
Alexey Starikovskiy | 5bfeca3 | 2007-11-14 17:00:39 -0800 | [diff] [blame] | 397 | return -EINVAL; |
Rafael J. Wysocki | ccda706 | 2012-06-27 23:26:35 +0200 | [diff] [blame] | 398 | |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 399 | ac = acpi_driver_data(to_acpi_device(dev)); |
Rafael J. Wysocki | ccda706 | 2012-06-27 23:26:35 +0200 | [diff] [blame] | 400 | if (!ac) |
| 401 | return -EINVAL; |
| 402 | |
Alexey Starikovskiy | 5bfeca3 | 2007-11-14 17:00:39 -0800 | [diff] [blame] | 403 | old_state = ac->state; |
| 404 | if (acpi_ac_get_state(ac)) |
| 405 | return 0; |
| 406 | if (old_state != ac->state) |
Krzysztof Kozlowski | 297d716 | 2015-03-12 08:44:11 +0100 | [diff] [blame] | 407 | kobject_uevent(&ac->charger->dev.kobj, KOBJ_CHANGE); |
Alexey Starikovskiy | 5bfeca3 | 2007-11-14 17:00:39 -0800 | [diff] [blame] | 408 | return 0; |
| 409 | } |
Shuah Khan | 06521c2 | 2014-02-12 20:19:05 -0700 | [diff] [blame] | 410 | #else |
| 411 | #define acpi_ac_resume NULL |
Rafael J. Wysocki | 9069240 | 2012-08-09 23:00:02 +0200 | [diff] [blame] | 412 | #endif |
Alexey Starikovskiy | 5bfeca3 | 2007-11-14 17:00:39 -0800 | [diff] [blame] | 413 | |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 414 | static int acpi_ac_remove(struct acpi_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | { |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 416 | struct acpi_ac *ac = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 418 | |
| 419 | if (!device || !acpi_driver_data(device)) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 420 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 422 | ac = acpi_driver_data(device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | |
Krzysztof Kozlowski | 297d716 | 2015-03-12 08:44:11 +0100 | [diff] [blame] | 424 | power_supply_unregister(ac->charger); |
Alexander Mezin | 4eee4f0 | 2014-03-12 00:58:48 +0700 | [diff] [blame] | 425 | unregister_acpi_notifier(&ac->battery_nb); |
Zhang Rui | cc8ef52 | 2013-09-25 20:39:45 +0800 | [diff] [blame] | 426 | |
Lan Tianyu | e63f6e2 | 2014-07-07 01:13:46 +0200 | [diff] [blame] | 427 | #ifdef CONFIG_ACPI_PROCFS_POWER |
| 428 | acpi_ac_remove_fs(ac); |
| 429 | #endif |
| 430 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | kfree(ac); |
| 432 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 433 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | } |
| 435 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 436 | static int __init acpi_ac_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | { |
Hans de Goede | af3ec83 | 2017-04-19 14:02:11 +0200 | [diff] [blame] | 438 | unsigned int i; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 439 | int result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | |
Pavel Machek | 4d8316d | 2006-08-14 22:37:22 -0700 | [diff] [blame] | 441 | if (acpi_disabled) |
| 442 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | |
Hans de Goede | af3ec83 | 2017-04-19 14:02:11 +0200 | [diff] [blame] | 444 | for (i = 0; i < ARRAY_SIZE(acpi_ac_blacklist); i++) |
| 445 | if (acpi_dev_present(acpi_ac_blacklist[i].hid, "1", |
| 446 | acpi_ac_blacklist[i].hrv)) { |
| 447 | pr_info(PREFIX "AC: found native %s PMIC, not loading\n", |
| 448 | acpi_ac_blacklist[i].hid); |
| 449 | return -ENODEV; |
| 450 | } |
| 451 | |
Lan Tianyu | e63f6e2 | 2014-07-07 01:13:46 +0200 | [diff] [blame] | 452 | #ifdef CONFIG_ACPI_PROCFS_POWER |
| 453 | acpi_ac_dir = acpi_lock_ac_dir(); |
| 454 | if (!acpi_ac_dir) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 455 | return -ENODEV; |
Lan Tianyu | e63f6e2 | 2014-07-07 01:13:46 +0200 | [diff] [blame] | 456 | #endif |
| 457 | |
| 458 | |
| 459 | result = acpi_bus_register_driver(&acpi_ac_driver); |
| 460 | if (result < 0) { |
| 461 | #ifdef CONFIG_ACPI_PROCFS_POWER |
| 462 | acpi_unlock_ac_dir(acpi_ac_dir); |
| 463 | #endif |
| 464 | return -ENODEV; |
| 465 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 467 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 468 | } |
| 469 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 470 | static void __exit acpi_ac_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | { |
Guenter Roeck | 9801284 | 2014-05-06 19:18:28 -0700 | [diff] [blame] | 472 | acpi_bus_unregister_driver(&acpi_ac_driver); |
Lan Tianyu | e63f6e2 | 2014-07-07 01:13:46 +0200 | [diff] [blame] | 473 | #ifdef CONFIG_ACPI_PROCFS_POWER |
| 474 | acpi_unlock_ac_dir(acpi_ac_dir); |
| 475 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | module_init(acpi_ac_init); |
| 478 | module_exit(acpi_ac_exit); |