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 | * |
| 19 | * You should have received a copy of the GNU General Public License along |
| 20 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 21 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
| 22 | * |
| 23 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 24 | */ |
| 25 | |
| 26 | #include <linux/kernel.h> |
| 27 | #include <linux/module.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 28 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | #include <linux/init.h> |
| 30 | #include <linux/types.h> |
Alexey Starikovskiy | fdcedbb | 2007-11-19 16:33:45 +0300 | [diff] [blame] | 31 | #ifdef CONFIG_ACPI_PROCFS_POWER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #include <linux/proc_fs.h> |
| 33 | #include <linux/seq_file.h> |
Andrey Borzenkov | 8a246ee | 2007-11-14 17:00:37 -0800 | [diff] [blame] | 34 | #endif |
Alexey Starikovskiy | 97749cd | 2008-01-01 14:27:24 -0500 | [diff] [blame] | 35 | #ifdef CONFIG_ACPI_SYSFS_POWER |
Alexey Starikovskiy | d5b4a3d | 2007-09-26 19:44:06 +0400 | [diff] [blame] | 36 | #include <linux/power_supply.h> |
Alexey Starikovskiy | 97749cd | 2008-01-01 14:27:24 -0500 | [diff] [blame] | 37 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include <acpi/acpi_bus.h> |
| 39 | #include <acpi/acpi_drivers.h> |
| 40 | |
Len Brown | a192a95 | 2009-07-28 16:45:54 -0400 | [diff] [blame] | 41 | #define PREFIX "ACPI: " |
| 42 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | #define ACPI_AC_CLASS "ac_adapter" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #define ACPI_AC_DEVICE_NAME "AC Adapter" |
| 45 | #define ACPI_AC_FILE_STATE "state" |
| 46 | #define ACPI_AC_NOTIFY_STATUS 0x80 |
| 47 | #define ACPI_AC_STATUS_OFFLINE 0x00 |
| 48 | #define ACPI_AC_STATUS_ONLINE 0x01 |
| 49 | #define ACPI_AC_STATUS_UNKNOWN 0xFF |
| 50 | |
| 51 | #define _COMPONENT ACPI_AC_COMPONENT |
Len Brown | f52fd66 | 2007-02-12 22:42:12 -0500 | [diff] [blame] | 52 | ACPI_MODULE_NAME("ac"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | |
Len Brown | f52fd66 | 2007-02-12 22:42:12 -0500 | [diff] [blame] | 54 | MODULE_AUTHOR("Paul Diefenbaugh"); |
Len Brown | 7cda93e | 2007-02-12 23:50:02 -0500 | [diff] [blame] | 55 | MODULE_DESCRIPTION("ACPI AC Adapter Driver"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | MODULE_LICENSE("GPL"); |
| 57 | |
Alexey Starikovskiy | fdcedbb | 2007-11-19 16:33:45 +0300 | [diff] [blame] | 58 | #ifdef CONFIG_ACPI_PROCFS_POWER |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 59 | extern struct proc_dir_entry *acpi_lock_ac_dir(void); |
| 60 | extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir); |
Andrey Borzenkov | 8a246ee | 2007-11-14 17:00:37 -0800 | [diff] [blame] | 61 | static int acpi_ac_open_fs(struct inode *inode, struct file *file); |
| 62 | #endif |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 63 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 64 | static int acpi_ac_add(struct acpi_device *device); |
| 65 | static int acpi_ac_remove(struct acpi_device *device, int type); |
Alexey Starikovskiy | 5bfeca3 | 2007-11-14 17:00:39 -0800 | [diff] [blame] | 66 | static int acpi_ac_resume(struct acpi_device *device); |
Bjorn Helgaas | 48fe112 | 2009-04-30 09:35:42 -0600 | [diff] [blame] | 67 | static void acpi_ac_notify(struct acpi_device *device, u32 event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | |
Tobias Klauser | b299c22 | 2008-04-21 22:24:53 +0000 | [diff] [blame] | 69 | static const struct acpi_device_id ac_device_ids[] = { |
Thomas Renninger | 1ba90e3 | 2007-07-23 14:44:41 +0200 | [diff] [blame] | 70 | {"ACPI0003", 0}, |
| 71 | {"", 0}, |
| 72 | }; |
| 73 | MODULE_DEVICE_TABLE(acpi, ac_device_ids); |
| 74 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | static struct acpi_driver acpi_ac_driver = { |
Len Brown | c2b6705b | 2007-02-12 23:33:40 -0500 | [diff] [blame] | 76 | .name = "ac", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 77 | .class = ACPI_AC_CLASS, |
Thomas Renninger | 1ba90e3 | 2007-07-23 14:44:41 +0200 | [diff] [blame] | 78 | .ids = ac_device_ids, |
Bjorn Helgaas | 48fe112 | 2009-04-30 09:35:42 -0600 | [diff] [blame] | 79 | .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 80 | .ops = { |
| 81 | .add = acpi_ac_add, |
| 82 | .remove = acpi_ac_remove, |
Alexey Starikovskiy | 5bfeca3 | 2007-11-14 17:00:39 -0800 | [diff] [blame] | 83 | .resume = acpi_ac_resume, |
Bjorn Helgaas | 48fe112 | 2009-04-30 09:35:42 -0600 | [diff] [blame] | 84 | .notify = acpi_ac_notify, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 85 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | }; |
| 87 | |
| 88 | struct acpi_ac { |
Alexey Starikovskiy | 97749cd | 2008-01-01 14:27:24 -0500 | [diff] [blame] | 89 | #ifdef CONFIG_ACPI_SYSFS_POWER |
Alexey Starikovskiy | d5b4a3d | 2007-09-26 19:44:06 +0400 | [diff] [blame] | 90 | struct power_supply charger; |
Alexey Starikovskiy | 97749cd | 2008-01-01 14:27:24 -0500 | [diff] [blame] | 91 | #endif |
Patrick Mochel | af96179 | 2006-05-19 16:54:32 -0400 | [diff] [blame] | 92 | struct acpi_device * device; |
Matthew Wilcox | 27663c5 | 2008-10-10 02:22:59 -0400 | [diff] [blame] | 93 | unsigned long long state; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | }; |
| 95 | |
Alexey Starikovskiy | d5b4a3d | 2007-09-26 19:44:06 +0400 | [diff] [blame] | 96 | #define to_acpi_ac(x) container_of(x, struct acpi_ac, charger); |
| 97 | |
Alexey Starikovskiy | fdcedbb | 2007-11-19 16:33:45 +0300 | [diff] [blame] | 98 | #ifdef CONFIG_ACPI_PROCFS_POWER |
Arjan van de Ven | d750803 | 2006-07-04 13:06:00 -0400 | [diff] [blame] | 99 | static const struct file_operations acpi_ac_fops = { |
Denis V. Lunev | cf7acfa | 2008-04-29 01:02:27 -0700 | [diff] [blame] | 100 | .owner = THIS_MODULE, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 101 | .open = acpi_ac_open_fs, |
| 102 | .read = seq_read, |
| 103 | .llseek = seq_lseek, |
| 104 | .release = single_release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | }; |
Andrey Borzenkov | 8a246ee | 2007-11-14 17:00:37 -0800 | [diff] [blame] | 106 | #endif |
Alexey Starikovskiy | 97749cd | 2008-01-01 14:27:24 -0500 | [diff] [blame] | 107 | #ifdef CONFIG_ACPI_SYSFS_POWER |
Alexey Starikovskiy | d5b4a3d | 2007-09-26 19:44:06 +0400 | [diff] [blame] | 108 | static int get_ac_property(struct power_supply *psy, |
| 109 | enum power_supply_property psp, |
| 110 | union power_supply_propval *val) |
| 111 | { |
| 112 | struct acpi_ac *ac = to_acpi_ac(psy); |
| 113 | switch (psp) { |
| 114 | case POWER_SUPPLY_PROP_ONLINE: |
| 115 | val->intval = ac->state; |
| 116 | break; |
| 117 | default: |
| 118 | return -EINVAL; |
| 119 | } |
| 120 | return 0; |
| 121 | } |
| 122 | |
| 123 | static enum power_supply_property ac_props[] = { |
| 124 | POWER_SUPPLY_PROP_ONLINE, |
| 125 | }; |
Alexey Starikovskiy | 97749cd | 2008-01-01 14:27:24 -0500 | [diff] [blame] | 126 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | /* -------------------------------------------------------------------------- |
| 128 | AC Adapter Management |
| 129 | -------------------------------------------------------------------------- */ |
| 130 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 131 | static int acpi_ac_get_state(struct acpi_ac *ac) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 133 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | |
| 136 | if (!ac) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 137 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | |
Patrick Mochel | a6ba5eb | 2006-05-19 16:54:41 -0400 | [diff] [blame] | 139 | status = acpi_evaluate_integer(ac->device->handle, "_PSR", NULL, &ac->state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | if (ACPI_FAILURE(status)) { |
Thomas Renninger | a6fc672 | 2006-06-26 23:58:43 -0400 | [diff] [blame] | 141 | ACPI_EXCEPTION((AE_INFO, status, "Error reading AC Adapter state")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | ac->state = ACPI_AC_STATUS_UNKNOWN; |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 143 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 145 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 146 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | } |
| 148 | |
Alexey Starikovskiy | fdcedbb | 2007-11-19 16:33:45 +0300 | [diff] [blame] | 149 | #ifdef CONFIG_ACPI_PROCFS_POWER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | /* -------------------------------------------------------------------------- |
| 151 | FS Interface (/proc) |
| 152 | -------------------------------------------------------------------------- */ |
| 153 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 154 | static struct proc_dir_entry *acpi_ac_dir; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | |
| 156 | static int acpi_ac_seq_show(struct seq_file *seq, void *offset) |
| 157 | { |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 158 | struct acpi_ac *ac = seq->private; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | |
| 161 | if (!ac) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 162 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | |
| 164 | if (acpi_ac_get_state(ac)) { |
| 165 | seq_puts(seq, "ERROR: Unable to read AC Adapter state\n"); |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 166 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | } |
| 168 | |
| 169 | seq_puts(seq, "state: "); |
| 170 | switch (ac->state) { |
| 171 | case ACPI_AC_STATUS_OFFLINE: |
| 172 | seq_puts(seq, "off-line\n"); |
| 173 | break; |
| 174 | case ACPI_AC_STATUS_ONLINE: |
| 175 | seq_puts(seq, "on-line\n"); |
| 176 | break; |
| 177 | default: |
| 178 | seq_puts(seq, "unknown\n"); |
| 179 | break; |
| 180 | } |
| 181 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 182 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 184 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | static int acpi_ac_open_fs(struct inode *inode, struct file *file) |
| 186 | { |
| 187 | return single_open(file, acpi_ac_seq_show, PDE(inode)->data); |
| 188 | } |
| 189 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 190 | static int acpi_ac_add_fs(struct acpi_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 192 | struct proc_dir_entry *entry = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | |
| 195 | if (!acpi_device_dir(device)) { |
| 196 | acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 197 | acpi_ac_dir); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | if (!acpi_device_dir(device)) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 199 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | } |
| 201 | |
| 202 | /* 'state' [R] */ |
Denis V. Lunev | cf7acfa | 2008-04-29 01:02:27 -0700 | [diff] [blame] | 203 | entry = proc_create_data(ACPI_AC_FILE_STATE, |
| 204 | S_IRUGO, acpi_device_dir(device), |
| 205 | &acpi_ac_fops, acpi_driver_data(device)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | if (!entry) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 207 | return -ENODEV; |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 208 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | } |
| 210 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 211 | static int acpi_ac_remove_fs(struct acpi_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | |
| 214 | if (acpi_device_dir(device)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 215 | remove_proc_entry(ACPI_AC_FILE_STATE, acpi_device_dir(device)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | |
| 217 | remove_proc_entry(acpi_device_bid(device), acpi_ac_dir); |
| 218 | acpi_device_dir(device) = NULL; |
| 219 | } |
| 220 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 221 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | } |
Andrey Borzenkov | 8a246ee | 2007-11-14 17:00:37 -0800 | [diff] [blame] | 223 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | /* -------------------------------------------------------------------------- |
| 226 | Driver Model |
| 227 | -------------------------------------------------------------------------- */ |
| 228 | |
Bjorn Helgaas | 48fe112 | 2009-04-30 09:35:42 -0600 | [diff] [blame] | 229 | static void acpi_ac_notify(struct acpi_device *device, u32 event) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | { |
Bjorn Helgaas | 48fe112 | 2009-04-30 09:35:42 -0600 | [diff] [blame] | 231 | struct acpi_ac *ac = acpi_driver_data(device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | |
| 234 | if (!ac) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 235 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | switch (event) { |
Len Brown | f163ff5 | 2008-06-14 01:26:37 -0400 | [diff] [blame] | 238 | default: |
| 239 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
| 240 | "Unsupported event [0x%x]\n", event)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | case ACPI_AC_NOTIFY_STATUS: |
Christian Lupien | 03d7825 | 2004-08-19 01:26:00 -0400 | [diff] [blame] | 242 | case ACPI_NOTIFY_BUS_CHECK: |
| 243 | case ACPI_NOTIFY_DEVICE_CHECK: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | acpi_ac_get_state(ac); |
Len Brown | 14e04fb | 2007-08-23 15:20:26 -0400 | [diff] [blame] | 245 | acpi_bus_generate_proc_event(device, event, (u32) ac->state); |
Zhang Rui | 962ce8c | 2007-08-23 01:24:31 +0800 | [diff] [blame] | 246 | acpi_bus_generate_netlink_event(device->pnp.device_class, |
Kay Sievers | 0794469 | 2008-10-30 01:18:59 +0100 | [diff] [blame] | 247 | dev_name(&device->dev), event, |
Zhang Rui | 962ce8c | 2007-08-23 01:24:31 +0800 | [diff] [blame] | 248 | (u32) ac->state); |
Mark Langsdorf | 68b92b5 | 2009-08-11 15:15:42 -0500 | [diff] [blame] | 249 | acpi_notifier_call_chain(device, event, (u32) ac->state); |
Alexey Starikovskiy | 97749cd | 2008-01-01 14:27:24 -0500 | [diff] [blame] | 250 | #ifdef CONFIG_ACPI_SYSFS_POWER |
Alexey Starikovskiy | d5b4a3d | 2007-09-26 19:44:06 +0400 | [diff] [blame] | 251 | kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE); |
Alexey Starikovskiy | 97749cd | 2008-01-01 14:27:24 -0500 | [diff] [blame] | 252 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | } |
| 254 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 255 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | } |
| 257 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 258 | static int acpi_ac_add(struct acpi_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 260 | int result = 0; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 261 | struct acpi_ac *ac = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | |
| 264 | if (!device) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 265 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | |
Burman Yan | 36bcbec | 2006-12-19 12:56:11 -0800 | [diff] [blame] | 267 | ac = kzalloc(sizeof(struct acpi_ac), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | if (!ac) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 269 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | |
Patrick Mochel | af96179 | 2006-05-19 16:54:32 -0400 | [diff] [blame] | 271 | ac->device = device; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | strcpy(acpi_device_name(device), ACPI_AC_DEVICE_NAME); |
| 273 | strcpy(acpi_device_class(device), ACPI_AC_CLASS); |
Pavel Machek | db89b4f | 2008-09-22 14:37:34 -0700 | [diff] [blame] | 274 | device->driver_data = ac; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | |
| 276 | result = acpi_ac_get_state(ac); |
| 277 | if (result) |
| 278 | goto end; |
| 279 | |
Alexey Starikovskiy | fdcedbb | 2007-11-19 16:33:45 +0300 | [diff] [blame] | 280 | #ifdef CONFIG_ACPI_PROCFS_POWER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | result = acpi_ac_add_fs(device); |
Andrey Borzenkov | 8a246ee | 2007-11-14 17:00:37 -0800 | [diff] [blame] | 282 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | if (result) |
| 284 | goto end; |
Alexey Starikovskiy | 97749cd | 2008-01-01 14:27:24 -0500 | [diff] [blame] | 285 | #ifdef CONFIG_ACPI_SYSFS_POWER |
Alexey Starikovskiy | d5b4a3d | 2007-09-26 19:44:06 +0400 | [diff] [blame] | 286 | ac->charger.name = acpi_device_bid(device); |
| 287 | ac->charger.type = POWER_SUPPLY_TYPE_MAINS; |
| 288 | ac->charger.properties = ac_props; |
| 289 | ac->charger.num_properties = ARRAY_SIZE(ac_props); |
| 290 | ac->charger.get_property = get_ac_property; |
| 291 | power_supply_register(&ac->device->dev, &ac->charger); |
Alexey Starikovskiy | 97749cd | 2008-01-01 14:27:24 -0500 | [diff] [blame] | 292 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 294 | printk(KERN_INFO PREFIX "%s [%s] (%s)\n", |
| 295 | acpi_device_name(device), acpi_device_bid(device), |
| 296 | ac->state ? "on-line" : "off-line"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 298 | end: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | if (result) { |
Alexey Starikovskiy | fdcedbb | 2007-11-19 16:33:45 +0300 | [diff] [blame] | 300 | #ifdef CONFIG_ACPI_PROCFS_POWER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | acpi_ac_remove_fs(device); |
Andrey Borzenkov | 8a246ee | 2007-11-14 17:00:37 -0800 | [diff] [blame] | 302 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | kfree(ac); |
| 304 | } |
| 305 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 306 | return result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | } |
| 308 | |
Alexey Starikovskiy | 5bfeca3 | 2007-11-14 17:00:39 -0800 | [diff] [blame] | 309 | static int acpi_ac_resume(struct acpi_device *device) |
| 310 | { |
| 311 | struct acpi_ac *ac; |
| 312 | unsigned old_state; |
| 313 | if (!device || !acpi_driver_data(device)) |
| 314 | return -EINVAL; |
| 315 | ac = acpi_driver_data(device); |
| 316 | old_state = ac->state; |
| 317 | if (acpi_ac_get_state(ac)) |
| 318 | return 0; |
Alexey Starikovskiy | 97749cd | 2008-01-01 14:27:24 -0500 | [diff] [blame] | 319 | #ifdef CONFIG_ACPI_SYSFS_POWER |
Alexey Starikovskiy | 5bfeca3 | 2007-11-14 17:00:39 -0800 | [diff] [blame] | 320 | if (old_state != ac->state) |
| 321 | kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE); |
Alexey Starikovskiy | 97749cd | 2008-01-01 14:27:24 -0500 | [diff] [blame] | 322 | #endif |
Alexey Starikovskiy | 5bfeca3 | 2007-11-14 17:00:39 -0800 | [diff] [blame] | 323 | return 0; |
| 324 | } |
| 325 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 326 | static int acpi_ac_remove(struct acpi_device *device, int type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 328 | struct acpi_ac *ac = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | |
| 331 | if (!device || !acpi_driver_data(device)) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 332 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 334 | ac = acpi_driver_data(device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | |
Alexey Starikovskiy | 97749cd | 2008-01-01 14:27:24 -0500 | [diff] [blame] | 336 | #ifdef CONFIG_ACPI_SYSFS_POWER |
Alexey Starikovskiy | d5b4a3d | 2007-09-26 19:44:06 +0400 | [diff] [blame] | 337 | if (ac->charger.dev) |
| 338 | power_supply_unregister(&ac->charger); |
Alexey Starikovskiy | 97749cd | 2008-01-01 14:27:24 -0500 | [diff] [blame] | 339 | #endif |
Alexey Starikovskiy | fdcedbb | 2007-11-19 16:33:45 +0300 | [diff] [blame] | 340 | #ifdef CONFIG_ACPI_PROCFS_POWER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | acpi_ac_remove_fs(device); |
Andrey Borzenkov | 8a246ee | 2007-11-14 17:00:37 -0800 | [diff] [blame] | 342 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | |
| 344 | kfree(ac); |
| 345 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 346 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | } |
| 348 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 349 | static int __init acpi_ac_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | { |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 351 | int result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | |
Pavel Machek | 4d8316d | 2006-08-14 22:37:22 -0700 | [diff] [blame] | 353 | if (acpi_disabled) |
| 354 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | |
Alexey Starikovskiy | fdcedbb | 2007-11-19 16:33:45 +0300 | [diff] [blame] | 356 | #ifdef CONFIG_ACPI_PROCFS_POWER |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 357 | acpi_ac_dir = acpi_lock_ac_dir(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | if (!acpi_ac_dir) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 359 | return -ENODEV; |
Andrey Borzenkov | 8a246ee | 2007-11-14 17:00:37 -0800 | [diff] [blame] | 360 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | |
| 362 | result = acpi_bus_register_driver(&acpi_ac_driver); |
| 363 | if (result < 0) { |
Alexey Starikovskiy | fdcedbb | 2007-11-19 16:33:45 +0300 | [diff] [blame] | 364 | #ifdef CONFIG_ACPI_PROCFS_POWER |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 365 | acpi_unlock_ac_dir(acpi_ac_dir); |
Andrey Borzenkov | 8a246ee | 2007-11-14 17:00:37 -0800 | [diff] [blame] | 366 | #endif |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 367 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | } |
| 369 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 370 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | } |
| 372 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 373 | static void __exit acpi_ac_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | |
| 376 | acpi_bus_unregister_driver(&acpi_ac_driver); |
| 377 | |
Alexey Starikovskiy | fdcedbb | 2007-11-19 16:33:45 +0300 | [diff] [blame] | 378 | #ifdef CONFIG_ACPI_PROCFS_POWER |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 379 | acpi_unlock_ac_dir(acpi_ac_dir); |
Andrey Borzenkov | 8a246ee | 2007-11-14 17:00:37 -0800 | [diff] [blame] | 380 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 382 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | } |
| 384 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | module_init(acpi_ac_init); |
| 386 | module_exit(acpi_ac_exit); |