Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 1 | /* |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 2 | * sbs.c - ACPI Smart Battery System Driver ($Revision: 2.0 $) |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 3 | * |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 4 | * Copyright (c) 2007 Alexey Starikovskiy <astarikovskiy@suse.de> |
| 5 | * Copyright (c) 2005-2007 Vladimir Lebedev <vladimir.p.lebedev@intel.com> |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 6 | * Copyright (c) 2005 Rich Townsend <rhdt@bartol.udel.edu> |
| 7 | * |
| 8 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or (at |
| 13 | * your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, but |
| 16 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 18 | * General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License along |
| 21 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 22 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
| 23 | * |
| 24 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 25 | */ |
| 26 | |
| 27 | #include <linux/init.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 28 | #include <linux/slab.h> |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 29 | #include <linux/module.h> |
| 30 | #include <linux/moduleparam.h> |
| 31 | #include <linux/kernel.h> |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 32 | |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 33 | #include <linux/acpi.h> |
Vladimir Lebedev | 6d15702 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 34 | #include <linux/timer.h> |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 35 | #include <linux/jiffies.h> |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 36 | #include <linux/delay.h> |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 37 | #include <linux/power_supply.h> |
Matthew Garrett | 9faf613 | 2014-09-20 13:19:46 +0200 | [diff] [blame] | 38 | #include <linux/dmi.h> |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 39 | |
Alexey Starikovskiy | 91087df | 2007-09-26 19:43:28 +0400 | [diff] [blame] | 40 | #include "sbshc.h" |
Alexander Mezin | f03be35 | 2014-03-12 00:58:46 +0700 | [diff] [blame] | 41 | #include "battery.h" |
Alexey Starikovskiy | 91087df | 2007-09-26 19:43:28 +0400 | [diff] [blame] | 42 | |
Len Brown | a192a95 | 2009-07-28 16:45:54 -0400 | [diff] [blame] | 43 | #define PREFIX "ACPI: " |
| 44 | |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 45 | #define ACPI_SBS_CLASS "sbs" |
| 46 | #define ACPI_AC_CLASS "ac_adapter" |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 47 | #define ACPI_SBS_DEVICE_NAME "Smart Battery System" |
| 48 | #define ACPI_SBS_FILE_INFO "info" |
| 49 | #define ACPI_SBS_FILE_STATE "state" |
| 50 | #define ACPI_SBS_FILE_ALARM "alarm" |
| 51 | #define ACPI_BATTERY_DIR_NAME "BAT%i" |
| 52 | #define ACPI_AC_DIR_NAME "AC0" |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 53 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 54 | #define ACPI_SBS_NOTIFY_STATUS 0x80 |
| 55 | #define ACPI_SBS_NOTIFY_INFO 0x81 |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 56 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 57 | MODULE_AUTHOR("Alexey Starikovskiy <astarikovskiy@suse.de>"); |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 58 | MODULE_DESCRIPTION("Smart Battery System ACPI interface driver"); |
| 59 | MODULE_LICENSE("GPL"); |
| 60 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 61 | static unsigned int cache_time = 1000; |
| 62 | module_param(cache_time, uint, 0644); |
| 63 | MODULE_PARM_DESC(cache_time, "cache time in milliseconds"); |
Vladimir Lebedev | 6d15702 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 64 | |
Matthew Garrett | 9faf613 | 2014-09-20 13:19:46 +0200 | [diff] [blame] | 65 | static bool sbs_manager_broken; |
| 66 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 67 | #define MAX_SBS_BAT 4 |
Vladimir Lebedev | 6d15702 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 68 | #define ACPI_SBS_BLOCK_MAX 32 |
| 69 | |
Thomas Renninger | 1ba90e3 | 2007-07-23 14:44:41 +0200 | [diff] [blame] | 70 | static const struct acpi_device_id sbs_device_ids[] = { |
Alexey Starikovskiy | 91087df | 2007-09-26 19:43:28 +0400 | [diff] [blame] | 71 | {"ACPI0002", 0}, |
Thomas Renninger | 1ba90e3 | 2007-07-23 14:44:41 +0200 | [diff] [blame] | 72 | {"", 0}, |
| 73 | }; |
| 74 | MODULE_DEVICE_TABLE(acpi, sbs_device_ids); |
| 75 | |
Alexey Starikovskiy | 89862e3 | 2007-09-26 19:43:35 +0400 | [diff] [blame] | 76 | struct acpi_battery { |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 77 | struct power_supply bat; |
Alexey Starikovskiy | 89862e3 | 2007-09-26 19:43:35 +0400 | [diff] [blame] | 78 | struct acpi_sbs *sbs; |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 79 | unsigned long update_time; |
| 80 | char name[8]; |
Alexey Starikovskiy | 89862e3 | 2007-09-26 19:43:35 +0400 | [diff] [blame] | 81 | char manufacturer_name[ACPI_SBS_BLOCK_MAX]; |
| 82 | char device_name[ACPI_SBS_BLOCK_MAX]; |
| 83 | char device_chemistry[ACPI_SBS_BLOCK_MAX]; |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 84 | u16 alarm_capacity; |
Alexey Starikovskiy | 89862e3 | 2007-09-26 19:43:35 +0400 | [diff] [blame] | 85 | u16 full_charge_capacity; |
| 86 | u16 design_capacity; |
| 87 | u16 design_voltage; |
| 88 | u16 serial_number; |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 89 | u16 cycle_count; |
| 90 | u16 temp_now; |
Alexey Starikovskiy | 89862e3 | 2007-09-26 19:43:35 +0400 | [diff] [blame] | 91 | u16 voltage_now; |
Alexey Starikovskiy | 7faa144 | 2009-03-27 22:23:52 -0400 | [diff] [blame] | 92 | s16 rate_now; |
| 93 | s16 rate_avg; |
Alexey Starikovskiy | 89862e3 | 2007-09-26 19:43:35 +0400 | [diff] [blame] | 94 | u16 capacity_now; |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 95 | u16 state_of_charge; |
Alexey Starikovskiy | 89862e3 | 2007-09-26 19:43:35 +0400 | [diff] [blame] | 96 | u16 state; |
Alexey Starikovskiy | 89862e3 | 2007-09-26 19:43:35 +0400 | [diff] [blame] | 97 | u16 mode; |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 98 | u16 spec; |
Alexey Starikovskiy | 89862e3 | 2007-09-26 19:43:35 +0400 | [diff] [blame] | 99 | u8 id; |
Alexey Starikovskiy | 89862e3 | 2007-09-26 19:43:35 +0400 | [diff] [blame] | 100 | u8 present:1; |
Jeff Garzik | 037cbc6 | 2007-11-18 00:32:31 +0300 | [diff] [blame] | 101 | u8 have_sysfs_alarm:1; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 102 | }; |
| 103 | |
Phil Carmody | 497888c | 2011-07-14 15:07:13 +0300 | [diff] [blame] | 104 | #define to_acpi_battery(x) container_of(x, struct acpi_battery, bat) |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 105 | |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 106 | struct acpi_sbs { |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 107 | struct power_supply charger; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 108 | struct acpi_device *device; |
Alexey Starikovskiy | 91087df | 2007-09-26 19:43:28 +0400 | [diff] [blame] | 109 | struct acpi_smb_hc *hc; |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 110 | struct mutex lock; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 111 | struct acpi_battery battery[MAX_SBS_BAT]; |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 112 | u8 batteries_supported:4; |
Alexey Starikovskiy | 89862e3 | 2007-09-26 19:43:35 +0400 | [diff] [blame] | 113 | u8 manager_present:1; |
| 114 | u8 charger_present:1; |
Matthew Garrett | 3031cdd | 2014-09-20 13:19:45 +0200 | [diff] [blame] | 115 | u8 charger_exists:1; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 116 | }; |
| 117 | |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 118 | #define to_acpi_sbs(x) container_of(x, struct acpi_sbs, charger) |
| 119 | |
Rafael J. Wysocki | 51fac83 | 2013-01-24 00:24:48 +0100 | [diff] [blame] | 120 | static int acpi_sbs_remove(struct acpi_device *device); |
Lan Tianyu | 1dd5c71 | 2011-07-01 16:03:15 +0800 | [diff] [blame] | 121 | static int acpi_battery_get_state(struct acpi_battery *battery); |
| 122 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 123 | static inline int battery_scale(int log) |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 124 | { |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 125 | int scale = 1; |
| 126 | while (log--) |
| 127 | scale *= 10; |
| 128 | return scale; |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 129 | } |
| 130 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 131 | static inline int acpi_battery_vscale(struct acpi_battery *battery) |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 132 | { |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 133 | return battery_scale((battery->spec & 0x0f00) >> 8); |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 134 | } |
| 135 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 136 | static inline int acpi_battery_ipscale(struct acpi_battery *battery) |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 137 | { |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 138 | return battery_scale((battery->spec & 0xf000) >> 12); |
| 139 | } |
| 140 | |
| 141 | static inline int acpi_battery_mode(struct acpi_battery *battery) |
| 142 | { |
| 143 | return (battery->mode & 0x8000); |
| 144 | } |
| 145 | |
| 146 | static inline int acpi_battery_scale(struct acpi_battery *battery) |
| 147 | { |
| 148 | return (acpi_battery_mode(battery) ? 10 : 1) * |
| 149 | acpi_battery_ipscale(battery); |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 150 | } |
| 151 | |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 152 | static int sbs_get_ac_property(struct power_supply *psy, |
| 153 | enum power_supply_property psp, |
| 154 | union power_supply_propval *val) |
| 155 | { |
| 156 | struct acpi_sbs *sbs = to_acpi_sbs(psy); |
| 157 | switch (psp) { |
| 158 | case POWER_SUPPLY_PROP_ONLINE: |
| 159 | val->intval = sbs->charger_present; |
| 160 | break; |
| 161 | default: |
| 162 | return -EINVAL; |
| 163 | } |
| 164 | return 0; |
| 165 | } |
| 166 | |
| 167 | static int acpi_battery_technology(struct acpi_battery *battery) |
| 168 | { |
| 169 | if (!strcasecmp("NiCd", battery->device_chemistry)) |
| 170 | return POWER_SUPPLY_TECHNOLOGY_NiCd; |
| 171 | if (!strcasecmp("NiMH", battery->device_chemistry)) |
| 172 | return POWER_SUPPLY_TECHNOLOGY_NiMH; |
| 173 | if (!strcasecmp("LION", battery->device_chemistry)) |
| 174 | return POWER_SUPPLY_TECHNOLOGY_LION; |
| 175 | if (!strcasecmp("LiP", battery->device_chemistry)) |
| 176 | return POWER_SUPPLY_TECHNOLOGY_LIPO; |
| 177 | return POWER_SUPPLY_TECHNOLOGY_UNKNOWN; |
| 178 | } |
| 179 | |
| 180 | static int acpi_sbs_battery_get_property(struct power_supply *psy, |
| 181 | enum power_supply_property psp, |
| 182 | union power_supply_propval *val) |
| 183 | { |
| 184 | struct acpi_battery *battery = to_acpi_battery(psy); |
| 185 | |
| 186 | if ((!battery->present) && psp != POWER_SUPPLY_PROP_PRESENT) |
| 187 | return -ENODEV; |
Lan Tianyu | 1dd5c71 | 2011-07-01 16:03:15 +0800 | [diff] [blame] | 188 | |
| 189 | acpi_battery_get_state(battery); |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 190 | switch (psp) { |
| 191 | case POWER_SUPPLY_PROP_STATUS: |
Alexey Starikovskiy | 7faa144 | 2009-03-27 22:23:52 -0400 | [diff] [blame] | 192 | if (battery->rate_now < 0) |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 193 | val->intval = POWER_SUPPLY_STATUS_DISCHARGING; |
Alexey Starikovskiy | 7faa144 | 2009-03-27 22:23:52 -0400 | [diff] [blame] | 194 | else if (battery->rate_now > 0) |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 195 | val->intval = POWER_SUPPLY_STATUS_CHARGING; |
| 196 | else |
| 197 | val->intval = POWER_SUPPLY_STATUS_FULL; |
| 198 | break; |
| 199 | case POWER_SUPPLY_PROP_PRESENT: |
| 200 | val->intval = battery->present; |
| 201 | break; |
| 202 | case POWER_SUPPLY_PROP_TECHNOLOGY: |
| 203 | val->intval = acpi_battery_technology(battery); |
| 204 | break; |
Alexey Starikovskiy | 1669885 | 2009-10-15 14:31:37 +0400 | [diff] [blame] | 205 | case POWER_SUPPLY_PROP_CYCLE_COUNT: |
| 206 | val->intval = battery->cycle_count; |
| 207 | break; |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 208 | case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: |
| 209 | val->intval = battery->design_voltage * |
| 210 | acpi_battery_vscale(battery) * 1000; |
| 211 | break; |
| 212 | case POWER_SUPPLY_PROP_VOLTAGE_NOW: |
| 213 | val->intval = battery->voltage_now * |
| 214 | acpi_battery_vscale(battery) * 1000; |
| 215 | break; |
| 216 | case POWER_SUPPLY_PROP_CURRENT_NOW: |
Alexey Starikovskiy | 7faa144 | 2009-03-27 22:23:52 -0400 | [diff] [blame] | 217 | case POWER_SUPPLY_PROP_POWER_NOW: |
| 218 | val->intval = abs(battery->rate_now) * |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 219 | acpi_battery_ipscale(battery) * 1000; |
Lan Tianyu | e410829 | 2011-07-01 16:03:39 +0800 | [diff] [blame] | 220 | val->intval *= (acpi_battery_mode(battery)) ? |
| 221 | (battery->voltage_now * |
| 222 | acpi_battery_vscale(battery) / 1000) : 1; |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 223 | break; |
| 224 | case POWER_SUPPLY_PROP_CURRENT_AVG: |
Alexey Starikovskiy | 7faa144 | 2009-03-27 22:23:52 -0400 | [diff] [blame] | 225 | case POWER_SUPPLY_PROP_POWER_AVG: |
| 226 | val->intval = abs(battery->rate_avg) * |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 227 | acpi_battery_ipscale(battery) * 1000; |
Lan Tianyu | e410829 | 2011-07-01 16:03:39 +0800 | [diff] [blame] | 228 | val->intval *= (acpi_battery_mode(battery)) ? |
| 229 | (battery->voltage_now * |
| 230 | acpi_battery_vscale(battery) / 1000) : 1; |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 231 | break; |
| 232 | case POWER_SUPPLY_PROP_CAPACITY: |
| 233 | val->intval = battery->state_of_charge; |
| 234 | break; |
| 235 | case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: |
| 236 | case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: |
| 237 | val->intval = battery->design_capacity * |
| 238 | acpi_battery_scale(battery) * 1000; |
| 239 | break; |
| 240 | case POWER_SUPPLY_PROP_CHARGE_FULL: |
| 241 | case POWER_SUPPLY_PROP_ENERGY_FULL: |
| 242 | val->intval = battery->full_charge_capacity * |
| 243 | acpi_battery_scale(battery) * 1000; |
| 244 | break; |
| 245 | case POWER_SUPPLY_PROP_CHARGE_NOW: |
| 246 | case POWER_SUPPLY_PROP_ENERGY_NOW: |
| 247 | val->intval = battery->capacity_now * |
| 248 | acpi_battery_scale(battery) * 1000; |
| 249 | break; |
| 250 | case POWER_SUPPLY_PROP_TEMP: |
| 251 | val->intval = battery->temp_now - 2730; // dK -> dC |
| 252 | break; |
| 253 | case POWER_SUPPLY_PROP_MODEL_NAME: |
| 254 | val->strval = battery->device_name; |
| 255 | break; |
| 256 | case POWER_SUPPLY_PROP_MANUFACTURER: |
| 257 | val->strval = battery->manufacturer_name; |
| 258 | break; |
| 259 | default: |
| 260 | return -EINVAL; |
| 261 | } |
| 262 | return 0; |
| 263 | } |
| 264 | |
| 265 | static enum power_supply_property sbs_ac_props[] = { |
| 266 | POWER_SUPPLY_PROP_ONLINE, |
| 267 | }; |
| 268 | |
| 269 | static enum power_supply_property sbs_charge_battery_props[] = { |
| 270 | POWER_SUPPLY_PROP_STATUS, |
| 271 | POWER_SUPPLY_PROP_PRESENT, |
| 272 | POWER_SUPPLY_PROP_TECHNOLOGY, |
Alexey Starikovskiy | 1669885 | 2009-10-15 14:31:37 +0400 | [diff] [blame] | 273 | POWER_SUPPLY_PROP_CYCLE_COUNT, |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 274 | POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, |
| 275 | POWER_SUPPLY_PROP_VOLTAGE_NOW, |
| 276 | POWER_SUPPLY_PROP_CURRENT_NOW, |
| 277 | POWER_SUPPLY_PROP_CURRENT_AVG, |
| 278 | POWER_SUPPLY_PROP_CAPACITY, |
| 279 | POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, |
| 280 | POWER_SUPPLY_PROP_CHARGE_FULL, |
| 281 | POWER_SUPPLY_PROP_CHARGE_NOW, |
| 282 | POWER_SUPPLY_PROP_TEMP, |
| 283 | POWER_SUPPLY_PROP_MODEL_NAME, |
| 284 | POWER_SUPPLY_PROP_MANUFACTURER, |
| 285 | }; |
| 286 | |
| 287 | static enum power_supply_property sbs_energy_battery_props[] = { |
| 288 | POWER_SUPPLY_PROP_STATUS, |
| 289 | POWER_SUPPLY_PROP_PRESENT, |
| 290 | POWER_SUPPLY_PROP_TECHNOLOGY, |
| 291 | POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, |
| 292 | POWER_SUPPLY_PROP_VOLTAGE_NOW, |
| 293 | POWER_SUPPLY_PROP_CURRENT_NOW, |
| 294 | POWER_SUPPLY_PROP_CURRENT_AVG, |
Alexey Starikovskiy | 7faa144 | 2009-03-27 22:23:52 -0400 | [diff] [blame] | 295 | POWER_SUPPLY_PROP_POWER_NOW, |
| 296 | POWER_SUPPLY_PROP_POWER_AVG, |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 297 | POWER_SUPPLY_PROP_CAPACITY, |
| 298 | POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, |
| 299 | POWER_SUPPLY_PROP_ENERGY_FULL, |
| 300 | POWER_SUPPLY_PROP_ENERGY_NOW, |
| 301 | POWER_SUPPLY_PROP_TEMP, |
| 302 | POWER_SUPPLY_PROP_MODEL_NAME, |
| 303 | POWER_SUPPLY_PROP_MANUFACTURER, |
| 304 | }; |
Alexey Starikovskiy | 7faa144 | 2009-03-27 22:23:52 -0400 | [diff] [blame] | 305 | |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 306 | |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 307 | /* -------------------------------------------------------------------------- |
| 308 | Smart Battery System Management |
| 309 | -------------------------------------------------------------------------- */ |
| 310 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 311 | struct acpi_battery_reader { |
| 312 | u8 command; /* command for battery */ |
| 313 | u8 mode; /* word or block? */ |
| 314 | size_t offset; /* offset inside struct acpi_sbs_battery */ |
| 315 | }; |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 316 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 317 | static struct acpi_battery_reader info_readers[] = { |
| 318 | {0x01, SMBUS_READ_WORD, offsetof(struct acpi_battery, alarm_capacity)}, |
| 319 | {0x03, SMBUS_READ_WORD, offsetof(struct acpi_battery, mode)}, |
| 320 | {0x10, SMBUS_READ_WORD, offsetof(struct acpi_battery, full_charge_capacity)}, |
| 321 | {0x17, SMBUS_READ_WORD, offsetof(struct acpi_battery, cycle_count)}, |
| 322 | {0x18, SMBUS_READ_WORD, offsetof(struct acpi_battery, design_capacity)}, |
| 323 | {0x19, SMBUS_READ_WORD, offsetof(struct acpi_battery, design_voltage)}, |
| 324 | {0x1a, SMBUS_READ_WORD, offsetof(struct acpi_battery, spec)}, |
| 325 | {0x1c, SMBUS_READ_WORD, offsetof(struct acpi_battery, serial_number)}, |
| 326 | {0x20, SMBUS_READ_BLOCK, offsetof(struct acpi_battery, manufacturer_name)}, |
| 327 | {0x21, SMBUS_READ_BLOCK, offsetof(struct acpi_battery, device_name)}, |
| 328 | {0x22, SMBUS_READ_BLOCK, offsetof(struct acpi_battery, device_chemistry)}, |
| 329 | }; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 330 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 331 | static struct acpi_battery_reader state_readers[] = { |
| 332 | {0x08, SMBUS_READ_WORD, offsetof(struct acpi_battery, temp_now)}, |
| 333 | {0x09, SMBUS_READ_WORD, offsetof(struct acpi_battery, voltage_now)}, |
Alexey Starikovskiy | 7faa144 | 2009-03-27 22:23:52 -0400 | [diff] [blame] | 334 | {0x0a, SMBUS_READ_WORD, offsetof(struct acpi_battery, rate_now)}, |
| 335 | {0x0b, SMBUS_READ_WORD, offsetof(struct acpi_battery, rate_avg)}, |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 336 | {0x0f, SMBUS_READ_WORD, offsetof(struct acpi_battery, capacity_now)}, |
| 337 | {0x0e, SMBUS_READ_WORD, offsetof(struct acpi_battery, state_of_charge)}, |
| 338 | {0x16, SMBUS_READ_WORD, offsetof(struct acpi_battery, state)}, |
| 339 | }; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 340 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 341 | static int acpi_manager_get_info(struct acpi_sbs *sbs) |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 342 | { |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 343 | int result = 0; |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 344 | u16 battery_system_info; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 345 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 346 | result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_MANAGER, |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 347 | 0x04, (u8 *)&battery_system_info); |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 348 | if (!result) |
| 349 | sbs->batteries_supported = battery_system_info & 0x000f; |
Len Brown | 635227e | 2006-07-01 16:48:23 -0400 | [diff] [blame] | 350 | return result; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 351 | } |
| 352 | |
| 353 | static int acpi_battery_get_info(struct acpi_battery *battery) |
| 354 | { |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 355 | int i, result = 0; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 356 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 357 | for (i = 0; i < ARRAY_SIZE(info_readers); ++i) { |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 358 | result = acpi_smbus_read(battery->sbs->hc, |
| 359 | info_readers[i].mode, |
| 360 | ACPI_SBS_BATTERY, |
| 361 | info_readers[i].command, |
| 362 | (u8 *) battery + |
| 363 | info_readers[i].offset); |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 364 | if (result) |
| 365 | break; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 366 | } |
Len Brown | 635227e | 2006-07-01 16:48:23 -0400 | [diff] [blame] | 367 | return result; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 368 | } |
| 369 | |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 370 | static int acpi_battery_get_state(struct acpi_battery *battery) |
| 371 | { |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 372 | int i, result = 0; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 373 | |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 374 | if (battery->update_time && |
| 375 | time_before(jiffies, battery->update_time + |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 376 | msecs_to_jiffies(cache_time))) |
| 377 | return 0; |
| 378 | for (i = 0; i < ARRAY_SIZE(state_readers); ++i) { |
| 379 | result = acpi_smbus_read(battery->sbs->hc, |
| 380 | state_readers[i].mode, |
| 381 | ACPI_SBS_BATTERY, |
| 382 | state_readers[i].command, |
| 383 | (u8 *)battery + |
| 384 | state_readers[i].offset); |
| 385 | if (result) |
| 386 | goto end; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 387 | } |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 388 | end: |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 389 | battery->update_time = jiffies; |
Len Brown | 635227e | 2006-07-01 16:48:23 -0400 | [diff] [blame] | 390 | return result; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 391 | } |
| 392 | |
| 393 | static int acpi_battery_get_alarm(struct acpi_battery *battery) |
| 394 | { |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 395 | return acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, |
| 396 | ACPI_SBS_BATTERY, 0x01, |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 397 | (u8 *)&battery->alarm_capacity); |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 398 | } |
| 399 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 400 | static int acpi_battery_set_alarm(struct acpi_battery *battery) |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 401 | { |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 402 | struct acpi_sbs *sbs = battery->sbs; |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 403 | u16 value, sel = 1 << (battery->id + 12); |
| 404 | |
| 405 | int ret; |
| 406 | |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 407 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 408 | if (sbs->manager_present) { |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 409 | ret = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_MANAGER, |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 410 | 0x01, (u8 *)&value); |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 411 | if (ret) |
| 412 | goto end; |
| 413 | if ((value & 0xf000) != sel) { |
| 414 | value &= 0x0fff; |
| 415 | value |= sel; |
| 416 | ret = acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD, |
| 417 | ACPI_SBS_MANAGER, |
| 418 | 0x01, (u8 *)&value, 2); |
| 419 | if (ret) |
| 420 | goto end; |
| 421 | } |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 422 | } |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 423 | ret = acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD, ACPI_SBS_BATTERY, |
| 424 | 0x01, (u8 *)&battery->alarm_capacity, 2); |
| 425 | end: |
| 426 | return ret; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 427 | } |
| 428 | |
| 429 | static int acpi_ac_get_present(struct acpi_sbs *sbs) |
| 430 | { |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 431 | int result; |
| 432 | u16 status; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 433 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 434 | result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_CHARGER, |
| 435 | 0x13, (u8 *) & status); |
Matthew Garrett | 3031cdd | 2014-09-20 13:19:45 +0200 | [diff] [blame] | 436 | |
| 437 | if (result) |
| 438 | return result; |
| 439 | |
| 440 | /* |
| 441 | * The spec requires that bit 4 always be 1. If it's not set, assume |
| 442 | * that the implementation doesn't support an SBS charger |
| 443 | */ |
Rafael J. Wysocki | 5159e39 | 2014-09-28 01:27:42 +0200 | [diff] [blame] | 444 | if (!((status >> 4) & 0x1)) |
Matthew Garrett | 3031cdd | 2014-09-20 13:19:45 +0200 | [diff] [blame] | 445 | return -ENODEV; |
| 446 | |
| 447 | sbs->charger_present = (status >> 15) & 0x1; |
| 448 | return 0; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 449 | } |
| 450 | |
Alexey Starikovskiy | 8bd9553 | 2007-09-26 19:44:00 +0400 | [diff] [blame] | 451 | static ssize_t acpi_battery_alarm_show(struct device *dev, |
| 452 | struct device_attribute *attr, |
| 453 | char *buf) |
| 454 | { |
| 455 | struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev)); |
| 456 | acpi_battery_get_alarm(battery); |
| 457 | return sprintf(buf, "%d\n", battery->alarm_capacity * |
| 458 | acpi_battery_scale(battery) * 1000); |
| 459 | } |
| 460 | |
| 461 | static ssize_t acpi_battery_alarm_store(struct device *dev, |
| 462 | struct device_attribute *attr, |
| 463 | const char *buf, size_t count) |
| 464 | { |
| 465 | unsigned long x; |
| 466 | struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev)); |
Luis G.F | 32a9051 | 2014-02-10 11:36:42 +0100 | [diff] [blame] | 467 | if (sscanf(buf, "%lu\n", &x) == 1) |
Alexey Starikovskiy | 8bd9553 | 2007-09-26 19:44:00 +0400 | [diff] [blame] | 468 | battery->alarm_capacity = x / |
| 469 | (1000 * acpi_battery_scale(battery)); |
| 470 | if (battery->present) |
| 471 | acpi_battery_set_alarm(battery); |
| 472 | return count; |
| 473 | } |
| 474 | |
| 475 | static struct device_attribute alarm_attr = { |
Parag Warudkar | 01e8ef1 | 2008-10-18 20:28:50 -0700 | [diff] [blame] | 476 | .attr = {.name = "alarm", .mode = 0644}, |
Alexey Starikovskiy | 8bd9553 | 2007-09-26 19:44:00 +0400 | [diff] [blame] | 477 | .show = acpi_battery_alarm_show, |
| 478 | .store = acpi_battery_alarm_store, |
| 479 | }; |
| 480 | |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 481 | /* -------------------------------------------------------------------------- |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 482 | Driver Interface |
| 483 | -------------------------------------------------------------------------- */ |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 484 | static int acpi_battery_read(struct acpi_battery *battery) |
| 485 | { |
| 486 | int result = 0, saved_present = battery->present; |
| 487 | u16 state; |
| 488 | |
| 489 | if (battery->sbs->manager_present) { |
| 490 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, |
| 491 | ACPI_SBS_MANAGER, 0x01, (u8 *)&state); |
| 492 | if (!result) |
| 493 | battery->present = state & (1 << battery->id); |
| 494 | state &= 0x0fff; |
| 495 | state |= 1 << (battery->id + 12); |
| 496 | acpi_smbus_write(battery->sbs->hc, SMBUS_WRITE_WORD, |
| 497 | ACPI_SBS_MANAGER, 0x01, (u8 *)&state, 2); |
| 498 | } else if (battery->id == 0) |
| 499 | battery->present = 1; |
Matthew Garrett | 9faf613 | 2014-09-20 13:19:46 +0200 | [diff] [blame] | 500 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 501 | if (result || !battery->present) |
| 502 | return result; |
| 503 | |
| 504 | if (saved_present != battery->present) { |
| 505 | battery->update_time = 0; |
| 506 | result = acpi_battery_get_info(battery); |
Matthew Garrett | 9faf613 | 2014-09-20 13:19:46 +0200 | [diff] [blame] | 507 | if (result) { |
| 508 | battery->present = 0; |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 509 | return result; |
Matthew Garrett | 9faf613 | 2014-09-20 13:19:46 +0200 | [diff] [blame] | 510 | } |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 511 | } |
| 512 | result = acpi_battery_get_state(battery); |
Matthew Garrett | 9faf613 | 2014-09-20 13:19:46 +0200 | [diff] [blame] | 513 | if (result) |
| 514 | battery->present = 0; |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 515 | return result; |
| 516 | } |
| 517 | |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 518 | /* Smart Battery */ |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 519 | static int acpi_battery_add(struct acpi_sbs *sbs, int id) |
| 520 | { |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 521 | struct acpi_battery *battery = &sbs->battery[id]; |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 522 | int result; |
| 523 | |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 524 | battery->id = id; |
| 525 | battery->sbs = sbs; |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 526 | result = acpi_battery_read(battery); |
| 527 | if (result) |
| 528 | return result; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 529 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 530 | sprintf(battery->name, ACPI_BATTERY_DIR_NAME, id); |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 531 | battery->bat.name = battery->name; |
| 532 | battery->bat.type = POWER_SUPPLY_TYPE_BATTERY; |
| 533 | if (!acpi_battery_mode(battery)) { |
| 534 | battery->bat.properties = sbs_charge_battery_props; |
| 535 | battery->bat.num_properties = |
| 536 | ARRAY_SIZE(sbs_charge_battery_props); |
| 537 | } else { |
| 538 | battery->bat.properties = sbs_energy_battery_props; |
| 539 | battery->bat.num_properties = |
| 540 | ARRAY_SIZE(sbs_energy_battery_props); |
| 541 | } |
| 542 | battery->bat.get_property = acpi_sbs_battery_get_property; |
| 543 | result = power_supply_register(&sbs->device->dev, &battery->bat); |
Jeff Garzik | 037cbc6 | 2007-11-18 00:32:31 +0300 | [diff] [blame] | 544 | if (result) |
| 545 | goto end; |
Matthew Garrett | 9faf613 | 2014-09-20 13:19:46 +0200 | [diff] [blame] | 546 | |
Jeff Garzik | 037cbc6 | 2007-11-18 00:32:31 +0300 | [diff] [blame] | 547 | result = device_create_file(battery->bat.dev, &alarm_attr); |
| 548 | if (result) |
| 549 | goto end; |
| 550 | battery->have_sysfs_alarm = 1; |
| 551 | end: |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 552 | printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n", |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 553 | ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), |
Alexey Starikovskiy | bbafbec | 2008-02-09 03:22:13 -0500 | [diff] [blame] | 554 | battery->name, battery->present ? "present" : "absent"); |
Len Brown | 635227e | 2006-07-01 16:48:23 -0400 | [diff] [blame] | 555 | return result; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 556 | } |
| 557 | |
| 558 | static void acpi_battery_remove(struct acpi_sbs *sbs, int id) |
| 559 | { |
Jeff Garzik | 037cbc6 | 2007-11-18 00:32:31 +0300 | [diff] [blame] | 560 | struct acpi_battery *battery = &sbs->battery[id]; |
Rakib Mullick | c19bdb6 | 2010-01-03 19:27:56 +0600 | [diff] [blame] | 561 | |
Jeff Garzik | 037cbc6 | 2007-11-18 00:32:31 +0300 | [diff] [blame] | 562 | if (battery->bat.dev) { |
| 563 | if (battery->have_sysfs_alarm) |
| 564 | device_remove_file(battery->bat.dev, &alarm_attr); |
| 565 | power_supply_unregister(&battery->bat); |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 566 | } |
| 567 | } |
| 568 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 569 | static int acpi_charger_add(struct acpi_sbs *sbs) |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 570 | { |
| 571 | int result; |
| 572 | |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 573 | result = acpi_ac_get_present(sbs); |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 574 | if (result) |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 575 | goto end; |
Lan Tianyu | 2a68b99 | 2013-10-11 09:54:09 +0800 | [diff] [blame] | 576 | |
Matthew Garrett | 3031cdd | 2014-09-20 13:19:45 +0200 | [diff] [blame] | 577 | sbs->charger_exists = 1; |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 578 | sbs->charger.name = "sbs-charger"; |
| 579 | sbs->charger.type = POWER_SUPPLY_TYPE_MAINS; |
| 580 | sbs->charger.properties = sbs_ac_props; |
| 581 | sbs->charger.num_properties = ARRAY_SIZE(sbs_ac_props); |
| 582 | sbs->charger.get_property = sbs_get_ac_property; |
| 583 | power_supply_register(&sbs->device->dev, &sbs->charger); |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 584 | printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n", |
| 585 | ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), |
Alexey Starikovskiy | 89862e3 | 2007-09-26 19:43:35 +0400 | [diff] [blame] | 586 | ACPI_AC_DIR_NAME, sbs->charger_present ? "on-line" : "off-line"); |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 587 | end: |
Len Brown | 635227e | 2006-07-01 16:48:23 -0400 | [diff] [blame] | 588 | return result; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 589 | } |
| 590 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 591 | static void acpi_charger_remove(struct acpi_sbs *sbs) |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 592 | { |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 593 | if (sbs->charger.dev) |
| 594 | power_supply_unregister(&sbs->charger); |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 595 | } |
| 596 | |
Adrian Bunk | e5685b9 | 2007-10-24 18:24:42 +0200 | [diff] [blame] | 597 | static void acpi_sbs_callback(void *context) |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 598 | { |
| 599 | int id; |
| 600 | struct acpi_sbs *sbs = context; |
| 601 | struct acpi_battery *bat; |
| 602 | u8 saved_charger_state = sbs->charger_present; |
| 603 | u8 saved_battery_state; |
Matthew Garrett | 3031cdd | 2014-09-20 13:19:45 +0200 | [diff] [blame] | 604 | |
| 605 | if (sbs->charger_exists) { |
| 606 | acpi_ac_get_present(sbs); |
| 607 | if (sbs->charger_present != saved_charger_state) |
| 608 | kobject_uevent(&sbs->charger.dev->kobj, KOBJ_CHANGE); |
| 609 | } |
Thomas Renninger | 1696d9d | 2013-07-15 10:15:09 +0200 | [diff] [blame] | 610 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 611 | if (sbs->manager_present) { |
| 612 | for (id = 0; id < MAX_SBS_BAT; ++id) { |
| 613 | if (!(sbs->batteries_supported & (1 << id))) |
| 614 | continue; |
| 615 | bat = &sbs->battery[id]; |
| 616 | saved_battery_state = bat->present; |
| 617 | acpi_battery_read(bat); |
| 618 | if (saved_battery_state == bat->present) |
| 619 | continue; |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 620 | kobject_uevent(&bat->bat.dev->kobj, KOBJ_CHANGE); |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 621 | } |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 622 | } |
| 623 | } |
| 624 | |
Matthew Garrett | 9faf613 | 2014-09-20 13:19:46 +0200 | [diff] [blame] | 625 | static int disable_sbs_manager(const struct dmi_system_id *d) |
| 626 | { |
| 627 | sbs_manager_broken = true; |
| 628 | return 0; |
| 629 | } |
| 630 | |
| 631 | static struct dmi_system_id acpi_sbs_dmi_table[] = { |
| 632 | { |
| 633 | .callback = disable_sbs_manager, |
| 634 | .ident = "Apple", |
| 635 | .matches = { |
| 636 | DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc.") |
| 637 | }, |
| 638 | }, |
| 639 | { }, |
| 640 | }; |
| 641 | |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 642 | static int acpi_sbs_add(struct acpi_device *device) |
| 643 | { |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 644 | struct acpi_sbs *sbs; |
| 645 | int result = 0; |
Vladimir Lebedev | 6d15702 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 646 | int id; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 647 | |
Matthew Garrett | 9faf613 | 2014-09-20 13:19:46 +0200 | [diff] [blame] | 648 | dmi_check_system(acpi_sbs_dmi_table); |
| 649 | |
Burman Yan | 36bcbec | 2006-12-19 12:56:11 -0800 | [diff] [blame] | 650 | sbs = kzalloc(sizeof(struct acpi_sbs), GFP_KERNEL); |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 651 | if (!sbs) { |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 652 | result = -ENOMEM; |
| 653 | goto end; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 654 | } |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 655 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 656 | mutex_init(&sbs->lock); |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 657 | |
Alexey Starikovskiy | 91087df | 2007-09-26 19:43:28 +0400 | [diff] [blame] | 658 | sbs->hc = acpi_driver_data(device->parent); |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 659 | sbs->device = device; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 660 | strcpy(acpi_device_name(device), ACPI_SBS_DEVICE_NAME); |
| 661 | strcpy(acpi_device_class(device), ACPI_SBS_CLASS); |
Pavel Machek | db89b4f | 2008-09-22 14:37:34 -0700 | [diff] [blame] | 662 | device->driver_data = sbs; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 663 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 664 | result = acpi_charger_add(sbs); |
Matthew Garrett | 3031cdd | 2014-09-20 13:19:45 +0200 | [diff] [blame] | 665 | if (result && result != -ENODEV) |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 666 | goto end; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 667 | |
Matthew Garrett | 9faf613 | 2014-09-20 13:19:46 +0200 | [diff] [blame] | 668 | result = 0; |
| 669 | |
| 670 | if (!sbs_manager_broken) { |
| 671 | result = acpi_manager_get_info(sbs); |
| 672 | if (!result) { |
| 673 | sbs->manager_present = 0; |
| 674 | for (id = 0; id < MAX_SBS_BAT; ++id) |
| 675 | if ((sbs->batteries_supported & (1 << id))) |
| 676 | acpi_battery_add(sbs, id); |
| 677 | } |
| 678 | } |
| 679 | |
| 680 | if (!sbs->manager_present) |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 681 | acpi_battery_add(sbs, 0); |
Matthew Garrett | 9faf613 | 2014-09-20 13:19:46 +0200 | [diff] [blame] | 682 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 683 | acpi_smbus_register_callback(sbs->hc, acpi_sbs_callback, sbs); |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 684 | end: |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 685 | if (result) |
Rafael J. Wysocki | 51fac83 | 2013-01-24 00:24:48 +0100 | [diff] [blame] | 686 | acpi_sbs_remove(device); |
Len Brown | 635227e | 2006-07-01 16:48:23 -0400 | [diff] [blame] | 687 | return result; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 688 | } |
| 689 | |
Rafael J. Wysocki | 51fac83 | 2013-01-24 00:24:48 +0100 | [diff] [blame] | 690 | static int acpi_sbs_remove(struct acpi_device *device) |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 691 | { |
Len Brown | cece901 | 2006-12-16 01:04:27 -0500 | [diff] [blame] | 692 | struct acpi_sbs *sbs; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 693 | int id; |
| 694 | |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 695 | if (!device) |
Lebedev, Vladimir P | 963497c | 2006-09-05 19:49:13 +0400 | [diff] [blame] | 696 | return -EINVAL; |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 697 | sbs = acpi_driver_data(device); |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 698 | if (!sbs) |
Len Brown | 635227e | 2006-07-01 16:48:23 -0400 | [diff] [blame] | 699 | return -EINVAL; |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 700 | mutex_lock(&sbs->lock); |
| 701 | acpi_smbus_unregister_callback(sbs->hc); |
| 702 | for (id = 0; id < MAX_SBS_BAT; ++id) |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 703 | acpi_battery_remove(sbs, id); |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 704 | acpi_charger_remove(sbs); |
| 705 | mutex_unlock(&sbs->lock); |
| 706 | mutex_destroy(&sbs->lock); |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 707 | kfree(sbs); |
Len Brown | 635227e | 2006-07-01 16:48:23 -0400 | [diff] [blame] | 708 | return 0; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 709 | } |
| 710 | |
Rafael J. Wysocki | 9069240 | 2012-08-09 23:00:02 +0200 | [diff] [blame] | 711 | #ifdef CONFIG_PM_SLEEP |
Rafael J. Wysocki | d202f77 | 2012-06-27 23:27:07 +0200 | [diff] [blame] | 712 | static int acpi_sbs_resume(struct device *dev) |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 713 | { |
| 714 | struct acpi_sbs *sbs; |
Rafael J. Wysocki | d202f77 | 2012-06-27 23:27:07 +0200 | [diff] [blame] | 715 | if (!dev) |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 716 | return -EINVAL; |
Rafael J. Wysocki | d202f77 | 2012-06-27 23:27:07 +0200 | [diff] [blame] | 717 | sbs = to_acpi_device(dev)->driver_data; |
Alexey Starikovskiy | db1c291 | 2007-09-26 19:43:41 +0400 | [diff] [blame] | 718 | acpi_sbs_callback(sbs); |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 719 | return 0; |
| 720 | } |
Shuah Khan | 15029dd | 2014-02-12 20:19:09 -0700 | [diff] [blame] | 721 | #else |
| 722 | #define acpi_sbs_resume NULL |
Rafael J. Wysocki | 9069240 | 2012-08-09 23:00:02 +0200 | [diff] [blame] | 723 | #endif |
Vladimir Lebedev | 7220623 | 2007-03-19 17:45:50 +0300 | [diff] [blame] | 724 | |
Rafael J. Wysocki | d202f77 | 2012-06-27 23:27:07 +0200 | [diff] [blame] | 725 | static SIMPLE_DEV_PM_OPS(acpi_sbs_pm, NULL, acpi_sbs_resume); |
| 726 | |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 727 | static struct acpi_driver acpi_sbs_driver = { |
| 728 | .name = "sbs", |
| 729 | .class = ACPI_SBS_CLASS, |
| 730 | .ids = sbs_device_ids, |
| 731 | .ops = { |
| 732 | .add = acpi_sbs_add, |
| 733 | .remove = acpi_sbs_remove, |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 734 | }, |
Rafael J. Wysocki | d202f77 | 2012-06-27 23:27:07 +0200 | [diff] [blame] | 735 | .drv.pm = &acpi_sbs_pm, |
Alexey Starikovskiy | 94f6c08 | 2007-09-26 19:43:48 +0400 | [diff] [blame] | 736 | }; |
| 737 | |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 738 | static int __init acpi_sbs_init(void) |
| 739 | { |
| 740 | int result = 0; |
| 741 | |
Len Brown | b20d2ae | 2006-08-15 23:21:37 -0400 | [diff] [blame] | 742 | if (acpi_disabled) |
| 743 | return -ENODEV; |
Lan Tianyu | 2a68b99 | 2013-10-11 09:54:09 +0800 | [diff] [blame] | 744 | |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 745 | result = acpi_bus_register_driver(&acpi_sbs_driver); |
Lan Tianyu | 2a68b99 | 2013-10-11 09:54:09 +0800 | [diff] [blame] | 746 | if (result < 0) |
Len Brown | 635227e | 2006-07-01 16:48:23 -0400 | [diff] [blame] | 747 | return -ENODEV; |
Lan Tianyu | 2a68b99 | 2013-10-11 09:54:09 +0800 | [diff] [blame] | 748 | |
Len Brown | 635227e | 2006-07-01 16:48:23 -0400 | [diff] [blame] | 749 | return 0; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 750 | } |
| 751 | |
| 752 | static void __exit acpi_sbs_exit(void) |
| 753 | { |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 754 | acpi_bus_unregister_driver(&acpi_sbs_driver); |
Len Brown | 635227e | 2006-07-01 16:48:23 -0400 | [diff] [blame] | 755 | return; |
Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame] | 756 | } |
| 757 | |
| 758 | module_init(acpi_sbs_init); |
| 759 | module_exit(acpi_sbs_exit); |