diff options
Diffstat (limited to 'meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/pda-power.patch')
| -rw-r--r-- | meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/pda-power.patch | 3373 |
1 files changed, 3373 insertions, 0 deletions
diff --git a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/pda-power.patch b/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/pda-power.patch new file mode 100644 index 000000000..face2f4ef --- /dev/null +++ b/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/pda-power.patch @@ -0,0 +1,3373 @@ +--- + arch/arm/Kconfig | 2 + drivers/Kconfig | 2 + drivers/Makefile | 1 + drivers/power/Kconfig | 70 +++++ + drivers/power/Makefile | 28 ++ + drivers/power/adc_battery.c | 278 +++++++++++++++++++++ + drivers/power/apm_power.c | 247 +++++++++++++++++++ + drivers/power/ds2760_battery.c | 475 +++++++++++++++++++++++++++++++++++++ + drivers/power/micro_battery.c | 257 ++++++++++++++++++++ + drivers/power/olpc_battery.c | 302 +++++++++++++++++++++++ + drivers/power/pda_power.c | 263 ++++++++++++++++++++ + drivers/power/pmu_battery.c | 215 ++++++++++++++++ + drivers/power/power_supply.h | 42 +++ + drivers/power/power_supply_core.c | 168 +++++++++++++ + drivers/power/power_supply_leds.c | 188 ++++++++++++++ + drivers/power/power_supply_sysfs.c | 289 ++++++++++++++++++++++ + drivers/power/simpad-battery.c | 242 ++++++++++++++++++ + include/linux/power_supply.h | 175 +++++++++++++ + 18 files changed, 3244 insertions(+) + +Index: linux-2.6.22/drivers/power/adc_battery.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.22/drivers/power/adc_battery.c 2007-08-23 12:26:28.000000000 +0200 +@@ -0,0 +1,278 @@ ++/* ++ * Copyright (c) 2007 Paul Sokolovsky ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License as published by ++ * the Free Software Foundation; either version 2 of the License, or ++ * (at your option) any later version. ++ * ++ */ ++ ++//#define DEBUG ++ ++#include <linux/module.h> ++#include <linux/interrupt.h> ++#include <linux/pm.h> ++#include <linux/delay.h> ++#include <linux/workqueue.h> ++#include <linux/platform_device.h> ++#include <linux/power_supply.h> ++#include <linux/adc.h> ++#include <linux/adc_battery.h> ++ ++#include <asm/irq.h> ++ ++#define PIN_NO_VOLT 0 ++#define PIN_NO_CURR 1 ++#define PIN_NO_TEMP 2 ++ ++struct battery_adc_priv { ++ struct power_supply batt_cdev; ++ ++ struct battery_adc_platform_data *pdata; ++ ++ struct adc_request req; ++ struct adc_sense pins[3]; ++ struct adc_sense last_good_pins[3]; ++ ++ struct workqueue_struct *wq; ++ struct delayed_work work; ++}; ++ ++/* ++ * Battery properties ++ */ ++ ++static int adc_battery_get_property(struct power_supply *psy, ++ enum power_supply_property psp, ++ union power_supply_propval *val) ++{ ++ struct battery_adc_priv* drvdata = (struct battery_adc_priv*)psy; ++ int voltage; ++ ++ switch (psp) { ++ case POWER_SUPPLY_PROP_STATUS: ++ val->intval = drvdata->pdata->charge_status; ++ break; ++ case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: ++ val->intval = drvdata->pdata->battery_info.voltage_max_design; ++ break; ++ case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: ++ val->intval = drvdata->pdata->battery_info.voltage_min_design; ++ break; ++ case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: ++ val->intval = drvdata->pdata->battery_info.charge_full_design; ++ break; ++ case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN: ++ val->intval = drvdata->pdata->battery_info.charge_empty_design; ++ break; ++ case POWER_SUPPLY_PROP_VOLTAGE_NOW: ++ val->intval = drvdata->last_good_pins[PIN_NO_VOLT].value * drvdata->pdata->voltage_mult; ++ break; ++ case POWER_SUPPLY_PROP_CURRENT_NOW: ++ val->intval = drvdata->last_good_pins[PIN_NO_CURR].value * drvdata->pdata->current_mult; ++ break; ++ case POWER_SUPPLY_PROP_CHARGE_NOW: ++ /* We do calculations in mX, not uX, because todo it in uX we should use "long long"s, ++ * which is a mess (need to use do_div) when you need divide operation). */ ++ voltage = drvdata->last_good_pins[PIN_NO_VOLT].value * drvdata->pdata->voltage_mult; ++ val->intval = ((voltage/1000 - drvdata->pdata->battery_info.voltage_min_design/1000) * ++ (drvdata->pdata->battery_info.charge_full_design/1000 - ++ drvdata->pdata->battery_info.charge_empty_design/1000)) / ++ (drvdata->pdata->battery_info.voltage_max_design/1000 - ++ drvdata->pdata->battery_info.voltage_min_design/1000); ++ val->intval *= 1000; /* convert final result to uX */ ++ break; ++ case POWER_SUPPLY_PROP_TEMP: ++ val->intval = drvdata->last_good_pins[PIN_NO_TEMP].value * drvdata->pdata->temperature_mult / 1000; ++ break; ++ default: ++ return -EINVAL; ++ }; ++ return 0; ++} ++ ++/* ++ * Driver body ++ */ ++ ++static void adc_battery_query(struct battery_adc_priv *drvdata) ++{ ++ struct battery_adc_platform_data *pdata = drvdata->pdata; ++ int powered, charging; ++ ++ adc_request_sample(&drvdata->req); ++ ++ powered = power_supply_am_i_supplied(&drvdata->batt_cdev); ++ charging = pdata->is_charging ? pdata->is_charging() : -1; ++ ++ if (powered && charging) ++ pdata->charge_status = POWER_SUPPLY_STATUS_CHARGING; ++ else if (powered && !charging && charging != -1) ++ pdata->charge_status = POWER_SUPPLY_STATUS_FULL; ++ else ++ pdata->charge_status = POWER_SUPPLY_STATUS_DISCHARGING; ++ ++ /* Throw away invalid samples, this may happen soon after resume for example. */ ++ if (drvdata->pins[PIN_NO_VOLT].value > 0) { ++ memcpy(drvdata->last_good_pins, drvdata->pins, sizeof(drvdata->pins)); ++#ifdef DEBUG ++ printk("%d %d %d\n", drvdata->pins[PIN_NO_VOLT].value, ++ drvdata->pins[PIN_NO_CURR].value, ++ drvdata->pins[PIN_NO_TEMP].value); ++#endif ++ } ++} ++ ++static void adc_battery_charge_power_changed(struct power_supply *bat) ++{ ++ struct battery_adc_priv *drvdata = (struct battery_adc_priv*)bat; ++ cancel_delayed_work(&drvdata->work); ++ queue_delayed_work(drvdata->wq, &drvdata->work, 0); ++} ++ ++static void adc_battery_work_func(struct work_struct *work) ++{ ++ struct delayed_work *delayed_work = container_of(work, struct delayed_work, work); ++ struct battery_adc_priv *drvdata = container_of(delayed_work, struct battery_adc_priv, work); ++ ++ adc_battery_query(drvdata); ++ power_supply_changed(&drvdata->batt_cdev); ++ ++ queue_delayed_work(drvdata->wq, &drvdata->work, (5000 * HZ) / 1000); ++} ++ ++static int adc_battery_probe(struct platform_device *pdev) ++{ ++ int retval; ++ struct battery_adc_platform_data *pdata = pdev->dev.platform_data; ++ struct battery_adc_priv *drvdata; ++ int i, j; ++ enum power_supply_property props[] = { ++ POWER_SUPPLY_PROP_STATUS, ++ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, ++ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, ++ POWER_SUPPLY_PROP_VOLTAGE_NOW, ++ POWER_SUPPLY_PROP_CURRENT_NOW, ++ POWER_SUPPLY_PROP_CHARGE_NOW, ++ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, ++ POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN, ++ POWER_SUPPLY_PROP_TEMP, ++ }; ++ ++ // Initialize ts data structure. ++ drvdata = kzalloc(sizeof(*drvdata), GFP_KERNEL); ++ if (!drvdata) ++ return -ENOMEM; ++ ++ drvdata->batt_cdev.name = pdata->battery_info.name; ++ drvdata->batt_cdev.use_for_apm = pdata->battery_info.use_for_apm; ++ drvdata->batt_cdev.num_properties = ARRAY_SIZE(props); ++ drvdata->batt_cdev.get_property = adc_battery_get_property; ++ drvdata->batt_cdev.external_power_changed = ++ adc_battery_charge_power_changed; ++ ++ if (!pdata->voltage_pin) { ++ drvdata->batt_cdev.num_properties--; ++ props[3] = -1; ++ } ++ if (!pdata->current_pin) { ++ drvdata->batt_cdev.num_properties--; ++ props[4] = -1; ++ } ++ if (!pdata->temperature_pin) { ++ drvdata->batt_cdev.num_properties--; ++ props[8] = -1; ++ } ++ ++ drvdata->batt_cdev.properties = kmalloc( ++ sizeof(*drvdata->batt_cdev.properties) * ++ drvdata->batt_cdev.num_properties, GFP_KERNEL); ++ if (!drvdata->batt_cdev.properties) ++ return -ENOMEM; ++ ++ j = 0; ++ for (i = 0; i < ARRAY_SIZE(props); i++) { ++ if (props[i] == -1) ++ continue; ++ drvdata->batt_cdev.properties[j++] = props[i]; ++ } ++ ++ retval = power_supply_register(&pdev->dev, &drvdata->batt_cdev); ++ if (retval) { ++ printk("adc-battery: Error registering battery classdev"); ++ return retval; ++ } ++ ++ drvdata->req.senses = drvdata->pins; ++ drvdata->req.num_senses = ARRAY_SIZE(drvdata->pins); ++ drvdata->pins[PIN_NO_VOLT].name = pdata->voltage_pin; ++ drvdata->pins[PIN_NO_CURR].name = pdata->current_pin; ++ drvdata->pins[PIN_NO_TEMP].name = pdata->temperature_pin; ++ ++ adc_request_register(&drvdata->req); ++ ++ /* Here we assume raw values in mV */ ++ if (!pdata->voltage_mult) ++ pdata->voltage_mult = 1000; ++ /* Here we assume raw values in mA */ ++ if (!pdata->current_mult) ++ pdata->current_mult = 1000; ++ /* Here we assume raw values in 1/10 C */ ++ if (!pdata->temperature_mult) ++ pdata->temperature_mult = 1000; ++ ++ drvdata->pdata = pdata; ++ pdata->drvdata = drvdata; /* Seems ugly, we need better solution */ ++ ++ platform_set_drvdata(pdev, drvdata); ++ ++ // Load initial values ASAP ++ adc_battery_query(drvdata); ++ ++ // Still schedule next sampling soon ++ INIT_DELAYED_WORK(&drvdata->work, adc_battery_work_func); ++ drvdata->wq = create_workqueue(pdev->dev.bus_id); ++ if (!drvdata->wq) ++ return -ESRCH; ++ ++ queue_delayed_work(drvdata->wq, &drvdata->work, (5000 * HZ) / 1000); ++ ++ return retval; ++} ++ ++static int adc_battery_remove(struct platform_device *pdev) ++{ ++ struct battery_adc_priv *drvdata = platform_get_drvdata(pdev); ++ cancel_delayed_work(&drvdata->work); ++ destroy_workqueue(drvdata->wq); ++ power_supply_unregister(&drvdata->batt_cdev); ++ adc_request_unregister(&drvdata->req); ++ kfree(drvdata->batt_cdev.properties); ++ return 0; ++} ++ ++static struct platform_driver adc_battery_driver = { ++ .driver = { ++ .name = "adc-battery", ++ }, ++ .probe = adc_battery_probe, ++ .remove = adc_battery_remove, ++}; ++ ++static int __init adc_battery_init(void) ++{ ++ return platform_driver_register(&adc_battery_driver); ++} ++ ++static void __exit adc_battery_exit(void) ++{ ++ platform_driver_unregister(&adc_battery_driver); ++} ++ ++module_init(adc_battery_init) ++module_exit(adc_battery_exit) ++ ++MODULE_AUTHOR("Paul Sokolovsky"); ++MODULE_DESCRIPTION("Battery driver for ADC device"); ++MODULE_LICENSE("GPL"); +Index: linux-2.6.22/drivers/power/apm_power.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.22/drivers/power/apm_power.c 2007-08-23 12:13:52.000000000 +0200 +@@ -0,0 +1,247 @@ ++/* ++ * Copyright (c) 2007 Anton Vorontsov <cbou@mail.ru> ++ * Copyright (c) 2007 Eugeny Boger <eugenyboger@dgap.mipt.ru> ++ * ++ * Author: Eugeny Boger <eugenyboger@dgap.mipt.ru> ++ * ++ * Use consistent with the GNU GPL is permitted, ++ * provided that this copyright notice is ++ * preserved in its entirety in all copies and derived works. ++ */ ++ ++#include <linux/module.h> ++#include <linux/power_supply.h> ++#include <linux/apm-emulation.h> ++ ++#define PSY_PROP(psy, prop, val) psy->get_property(psy, \ ++ POWER_SUPPLY_PROP_##prop, val) ++ ++#define _MPSY_PROP(prop, val) main_battery->get_property(main_battery, \ ++ prop, val) ++ ++#define MPSY_PROP(prop, val) _MPSY_PROP(POWER_SUPPLY_PROP_##prop, val) ++ ++static struct power_supply *main_battery; ++ ++static void find_main_battery(void) ++{ ++ struct device *dev; ++ struct power_supply *bat, *batm; ++ union power_supply_propval full; ++ int max_charge = 0; ++ ++ main_battery = NULL; ++ batm = NULL; ++ list_for_each_entry(dev, &power_supply_class->devices, node) { ++ bat = dev_get_drvdata(dev); ++ /* If none of battery devices cantains 'use_for_apm' flag, ++ choice one with maximum design charge */ ++ if (!PSY_PROP(bat, CHARGE_FULL_DESIGN, &full)) { ++ if (full.intval > max_charge) { ++ batm = bat; ++ max_charge = full.intval; ++ } ++ } ++ ++ if (bat->use_for_apm) ++ main_battery = bat; ++ } ++ if (!main_battery) ++ main_battery = batm; ++ ++ return; ++} ++ ++static int calculate_time(int status) ++{ ++ union power_supply_propval charge_full, charge_empty; ++ union power_supply_propval charge, I; ++ ++ if (MPSY_PROP(CHARGE_FULL, &charge_full)) { ++ /* if battery can't report this property, use design value */ ++ if (MPSY_PROP(CHARGE_FULL_DESIGN, &charge_full)) ++ return -1; ++ } ++ ++ if (MPSY_PROP(CHARGE_EMPTY, &charge_empty)) { ++ /* if battery can't report this property, use design value */ ++ if (MPSY_PROP(CHARGE_EMPTY_DESIGN, &charge_empty)) ++ charge_empty.intval = 0; ++ } ++ ++ if (MPSY_PROP(CHARGE_AVG, &charge)) { ++ /* if battery can't report average value, use momentary */ ++ if (MPSY_PROP(CHARGE_NOW, &charge)) ++ return -1; ++ } ++ ++ if (MPSY_PROP(CURRENT_AVG, &I)) { ++ /* if battery can't report average value, use momentary */ ++ if (MPSY_PROP(CURRENT_NOW, &I)) ++ return -1; ++ } ++ ++ if (I.intval == 0) ++ return 0; ++ else if (status == POWER_SUPPLY_STATUS_CHARGING) ++ return ((charge.intval - charge_full.intval) * 60L) / ++ I.intval; ++ else ++ return -((charge.intval - charge_empty.intval) * 60L) / ++ I.intval; ++} ++ ++static int calculate_capacity(int using_charge) ++{ ++ enum power_supply_property full_prop, empty_prop; ++ enum power_supply_property full_design_prop, empty_design_prop; ++ enum power_supply_property now_prop, avg_prop; ++ union power_supply_propval empty, full, cur; ++ int ret; ++ ++ if (using_charge) { ++ full_prop = POWER_SUPPLY_PROP_CHARGE_FULL; ++ empty_prop = POWER_SUPPLY_PROP_CHARGE_EMPTY; ++ full_design_prop = POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN; ++ empty_design_prop = POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN; ++ now_prop = POWER_SUPPLY_PROP_CHARGE_NOW; ++ avg_prop = POWER_SUPPLY_PROP_CHARGE_AVG; ++ } ++ else { ++ full_prop = POWER_SUPPLY_PROP_ENERGY_FULL; ++ empty_prop = POWER_SUPPLY_PROP_ENERGY_EMPTY; ++ full_design_prop = POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN; ++ empty_design_prop = POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN; ++ now_prop = POWER_SUPPLY_PROP_ENERGY_NOW; ++ avg_prop = POWER_SUPPLY_PROP_ENERGY_AVG; ++ } ++ ++ if (_MPSY_PROP(full_prop, &full)) { ++ /* if battery can't report this property, use design value */ ++ if (_MPSY_PROP(full_design_prop, &full)) ++ return -1; ++ } ++ ++ if (_MPSY_PROP(avg_prop, &cur)) { ++ /* if battery can't report average value, use momentary */ ++ if (_MPSY_PROP(now_prop, &cur)) ++ return -1; ++ } ++ ++ if (_MPSY_PROP(empty_prop, &empty)) { ++ /* if battery can't report this property, use design value */ ++ if (_MPSY_PROP(empty_design_prop, &empty)) ++ empty.intval = 0; ++ } ++ ++ if (full.intval - empty.intval) ++ ret = ((cur.intval - empty.intval) * 100L) / ++ (full.intval - empty.intval); ++ else ++ return -1; ++ ++ if (ret > 100) ++ return 100; ++ else if (ret < 0) ++ return 0; ++ ++ return ret; ++} ++ ++static void apm_battery_apm_get_power_status(struct apm_power_info *info) ++{ ++ union power_supply_propval status; ++ union power_supply_propval capacity, time_to_full, time_to_empty; ++ ++ down(&power_supply_class->sem); ++ find_main_battery(); ++ if (!main_battery) { ++ up(&power_supply_class->sem); ++ return; ++ } ++ ++ /* status */ ++ ++ if (MPSY_PROP(STATUS, &status)) ++ status.intval = POWER_SUPPLY_STATUS_UNKNOWN; ++ ++ /* ac line status */ ++ ++ if ((status.intval == POWER_SUPPLY_STATUS_CHARGING) || ++ (status.intval == POWER_SUPPLY_STATUS_NOT_CHARGING) || ++ (status.intval == POWER_SUPPLY_STATUS_FULL)) ++ info->ac_line_status = APM_AC_ONLINE; ++ else ++ info->ac_line_status = APM_AC_OFFLINE; ++ ++ /* battery life (i.e. capacity, in percents) */ ++ ++ if (MPSY_PROP(CAPACITY, &capacity) == 0) ++ info->battery_life = capacity.intval; ++ else { ++ /* try calculate using energy */ ++ info->battery_life = calculate_capacity(0); ++ /* if failed try calculate using charge instead */ ++ if (info->battery_life == -1) ++ info->battery_life = calculate_capacity(1); ++ } ++ ++ /* charging status */ ++ ++ if (status.intval == POWER_SUPPLY_STATUS_CHARGING) ++ info->battery_status = APM_BATTERY_STATUS_CHARGING; ++ else { ++ if (info->battery_life > 50) ++ info->battery_status = APM_BATTERY_STATUS_HIGH; ++ else if (info->battery_life > 5) ++ info->battery_status = APM_BATTERY_STATUS_LOW; ++ else ++ info->battery_status = APM_BATTERY_STATUS_CRITICAL; ++ } ++ info->battery_flag = info->battery_status; ++ ++ /* time */ ++ ++ info->units = APM_UNITS_MINS; ++ ++ if (status.intval == POWER_SUPPLY_STATUS_CHARGING) { ++ if (MPSY_PROP(TIME_TO_FULL_AVG, &time_to_full)) { ++ if (MPSY_PROP(TIME_TO_FULL_NOW, &time_to_full)) ++ info->time = calculate_time(status.intval); ++ else ++ info->time = time_to_full.intval / 60; ++ } ++ } ++ else { ++ if (MPSY_PROP(TIME_TO_EMPTY_AVG, &time_to_empty)) { ++ if (MPSY_PROP(TIME_TO_EMPTY_NOW, &time_to_empty)) ++ info->time = calculate_time(status.intval); ++ else ++ info->time = time_to_empty.intval / 60; ++ } ++ } ++ ++ up(&power_supply_class->sem); ++ return; ++} ++ ++static int __init apm_battery_init(void) ++{ ++ printk(KERN_INFO "APM Battery Driver\n"); ++ ++ apm_get_power_status = apm_battery_apm_get_power_status; ++ return 0; ++} ++ ++static void __exit apm_battery_exit(void) ++{ ++ apm_get_power_status = NULL; ++ return; ++} ++ ++module_init(apm_battery_init); ++module_exit(apm_battery_exit); ++ ++MODULE_AUTHOR("Eugeny Boger <eugenyboger@dgap.mipt.ru>"); ++MODULE_DESCRIPTION("APM emulation driver for battery monitoring class"); ++MODULE_LICENSE("GPL"); +Index: linux-2.6.22/drivers/power/ds2760_battery.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.22/drivers/power/ds2760_battery.c 2007-08-23 12:13:52.000000000 +0200 +@@ -0,0 +1,475 @@ ++/* ++ * Driver for batteries with DS2760 chips inside. ++ * ++ * Copyright (c) 2007 Anton Vorontsov ++ * 2004-2007 Matt Reimer ++ * 2004 Szabolcs Gyurko ++ * ++ * Use consistent with the GNU GPL is permitted, ++ * provided that this copyright notice is ++ * preserved in its entirety in all copies and derived works. ++ * ++ * Author: Anton Vorontsov <cbou@mail.ru> ++ * February 2007 ++ * ++ * Matt Reimer <mreimer@vpop.net> ++ * April 2004, 2005, 2007 ++ * ++ * Szabolcs Gyurko <szabolcs.gyurko@tlt.hu> ++ * September 2004 ++ */ ++ ++#include <linux/module.h> ++#include <linux/param.h> ++#include <linux/jiffies.h> ++#include <linux/workqueue.h> ++#include <linux/pm.h> ++#include <linux/platform_device.h> ++#include <linux/power_supply.h> ++ ++#include "../w1/w1.h" ++#include "../w1/slaves/w1_ds2760.h" ++ ++struct ds2760_device_info { ++ struct device *dev; ++ ++ /* DS2760 data, valid after calling ds2760_battery_read_status() */ ++ unsigned long update_time; /* jiffies when data read */ ++ char raw[DS2760_DATA_SIZE]; /* raw DS2760 data */ ++ int voltage_raw; /* units of 4.88 mV */ ++ int voltage_uV; /* units of uV */ ++ int current_raw; /* units of 0.625 mA */ ++ int current_uA; /* units of uA */ ++ int accum_current_raw; /* units of 0.25 mAh */ ++ int accum_current_uAh; /* units of uAh */ ++ int temp_raw; /* units of 0.125 C */ ++ int temp_C; /* units of 0.1 C */ ++ int rated_capacity; /* units of uAh */ ++ int rem_capacity; /* percentage */ ++ int full_active_uAh; /* units of uAh */ ++ int empty_uAh; /* units of uAh */ ++ int life_sec; /* units of seconds */ ++ int charge_status; /* POWER_SUPPLY_STATUS_* */ ++ ++ int full_counter; ++ struct power_supply bat; ++ struct device *w1_dev; ++ struct workqueue_struct *monitor_wqueue; ++ struct delayed_work monitor_work; ++}; ++ ++static unsigned int cache_time = 1000; ++module_param(cache_time, uint, 0644); ++MODULE_PARM_DESC(cache_time, "cache time in milliseconds"); ++ ++/* Some batteries have their rated capacity stored a N * 10 mAh, while ++ * others use an index into this table. */ ++static int rated_capacities[] = { ++ 0, ++ 920, /* Samsung */ ++ 920, /* BYD */ ++ 920, /* Lishen */ ++ 920, /* NEC */ ++ 1440, /* Samsung */ ++ 1440, /* BYD */ ++ 1440, /* Lishen */ ++ 1440, /* NEC */ ++ 2880, /* Samsung */ ++ 2880, /* BYD */ ++ 2880, /* Lishen */ ++ 2880 /* NEC */ ++}; ++ ++/* array is level at temps 0C, 10C, 20C, 30C, 40C ++ * temp is in Celsius */ ++static int battery_interpolate(int array[], int temp) ++{ ++ int index, dt; ++ ++ if (temp <= 0) ++ return array[0]; ++ if (temp >= 40) ++ return array[4]; ++ ++ index = temp / 10; ++ dt = temp % 10; ++ ++ return array[index] + (((array[index + 1] - array[index]) * dt) / 10); ++} ++ ++static int ds2760_battery_read_status(struct ds2760_device_info *di) ++{ ++ int ret, i, start, count, scale[5]; ++ ++ if (di->update_time && time_before(jiffies, di->update_time + ++ msecs_to_jiffies(cache_time))) ++ return 0; ++ ++ /* The first time we read the entire contents of SRAM/EEPROM, ++ * but after that we just read the interesting bits that change. */ ++ if (di->update_time == 0) { ++ start = 0; ++ count = DS2760_DATA_SIZE; ++ } ++ else { ++ start = DS2760_VOLTAGE_MSB; ++ count = DS2760_TEMP_LSB - start + 1; ++ } ++ ++ ret = w1_ds2760_read(di->w1_dev, di->raw + start, start, count); ++ if (ret != count) { ++ dev_warn(di->dev, "call to w1_ds2760_read failed (0x%p)\n", ++ di->w1_dev); ++ return 1; ++ } ++ ++ di->update_time = jiffies; ++ ++ /* DS2760 reports voltage in units of 4.88mV, but the battery class ++ * reports in units of uV, so convert by multiplying by 4880. */ ++ di->voltage_raw = (di->raw[DS2760_VOLTAGE_MSB] << 3) | ++ (di->raw[DS2760_VOLTAGE_LSB] >> 5); ++ di->voltage_uV = di->voltage_raw * 4880; ++ ++ /* DS2760 reports current in signed units of 0.625mA, but the battery ++ * class reports in units of uA, so convert by multiplying by 625. */ ++ di->current_raw = ++ (((signed char)di->raw[DS2760_CURRENT_MSB]) << 5) | ++ (di->raw[DS2760_CURRENT_LSB] >> 3); ++ di->current_uA = di->current_raw * 625; ++ ++ /* DS2760 reports accumulated current in signed units of 0.25mAh. */ ++ di->accum_current_raw = ++ (((signed char)di->raw[DS2760_CURRENT_ACCUM_MSB]) << 8) | ++ di->raw[DS2760_CURRENT_ACCUM_LSB]; ++ di->accum_current_uAh = di->accum_current_raw * 250; ++ ++ /* DS2760 reports temperature in signed units of 0.125C, but the ++ * battery class reports in units of 1/10 C, so we convert by ++ * multiplying by .125 * 10 = 1.25. */ ++ di->temp_raw = (((signed char)di->raw[DS2760_TEMP_MSB]) << 3) | ++ (di->raw[DS2760_TEMP_LSB] >> 5); ++ di->temp_C = di->temp_raw + (di->temp_raw / 4); ++ ++ /* At least some battery monitors (e.g. HP iPAQ) store the battery's ++ * maximum rated capacity. */ ++ if (di->raw[DS2760_RATED_CAPACITY] < ARRAY_SIZE(rated_capacities)) ++ di->rated_capacity = rated_capacities[ ++ (unsigned int)di->raw[DS2760_RATED_CAPACITY]]; ++ else ++ di->rated_capacity = di->raw[DS2760_RATED_CAPACITY] * 10; ++ ++ di->rated_capacity *= 1000; /* convert to uAh */ ++ ++ /* Calculate the full level at the present temperature. */ ++ di->full_active_uAh = di->raw[DS2760_ACTIVE_FULL] << 8 | ++ di->raw[DS2760_ACTIVE_FULL + 1]; ++ ++ scale[0] = di->raw[DS2760_ACTIVE_FULL] << 8 | ++ di->raw[DS2760_ACTIVE_FULL + 1]; ++ for (i = 1; i < 5; i++) ++ scale[i] = scale[i - 1] + di->raw[DS2760_ACTIVE_FULL + 2 + i]; ++ ++ di->full_active_uAh = battery_interpolate(scale, di->temp_C / 10); ++ di->full_active_uAh *= 1000; /* convert to uAh */ ++ ++ /* Calculate the empty level at the present temperature. */ ++ scale[4] = di->raw[DS2760_ACTIVE_EMPTY + 4]; ++ for (i = 3; i >= 0; i--) ++ scale[i] = scale[i + 1] + di->raw[DS2760_ACTIVE_EMPTY + i]; ++ ++ di->empty_uAh = battery_interpolate(scale, di->temp_C / 10); ++ di->empty_uAh *= 1000; /* convert to uAh */ ++ ++ /* From Maxim Application Note 131: remaining capacity = ++ * ((ICA - Empty Value) / (Full Value - Empty Value)) x 100% */ ++ di->rem_capacity = ((di->accum_current_uAh - di->empty_uAh) * 100L) / ++ (di->full_active_uAh - di->empty_uAh); ++ ++ if (di->rem_capacity < 0) ++ di->rem_capacity = 0; ++ if (di->rem_capacity > 100) ++ di->rem_capacity = 100; ++ ++ if (di->current_uA) ++ di->life_sec = -((di->accum_current_uAh - di->empty_uAh) * ++ 3600L) / di->current_uA; ++ else ++ di->life_sec = 0; ++ ++ return 0; ++} ++ ++static void ds2760_battery_update_status(struct ds2760_device_info *di) ++{ ++ int old_charge_status = di->charge_status; ++ ++ ds2760_battery_read_status(di); ++ ++ if (di->charge_status == POWER_SUPPLY_STATUS_UNKNOWN) ++ di->full_counter = 0; ++ ++ if (power_supply_am_i_supplied(&di->bat)) { ++ if (di->current_uA > 10000) { ++ di->charge_status = POWER_SUPPLY_STATUS_CHARGING; ++ di->full_counter = 0; ++ } ++ else if (di->current_uA < -5000) { ++ if (di->charge_status != POWER_SUPPLY_STATUS_NOT_CHARGING) ++ dev_notice(di->dev, "not enough power to " ++ "charge\n"); ++ di->charge_status = POWER_SUPPLY_STATUS_NOT_CHARGING; ++ di->full_counter = 0; ++ } ++ else if (di->current_uA < 10000 && ++ di->charge_status != POWER_SUPPLY_STATUS_FULL) { ++ ++ /* Don't consider the battery to be full unless ++ * we've seen the current < 10 mA at least two ++ * consecutive times. */ ++ ++ di->full_counter++; ++ ++ if (di->full_counter < 2) ++ di->charge_status = POWER_SUPPLY_STATUS_CHARGING; ++ else { ++ unsigned char acr[2]; ++ int acr_val; ++ ++ /* acr is in units of 0.25 mAh */ ++ acr_val = di->full_active_uAh * 4L / 1000; ++ ++ acr[0] = acr_val >> 8; ++ acr[1] = acr_val & 0xff; ++ ++ if (w1_ds2760_write(di->w1_dev, acr, ++ DS2760_CURRENT_ACCUM_MSB, 2) < 2) ++ dev_warn(di->dev, ++ "ACR reset failed\n"); ++ ++ di->charge_status = POWER_SUPPLY_STATUS_FULL; ++ } ++ } ++ } ++ else { ++ di->charge_status = POWER_SUPPLY_STATUS_DISCHARGING; ++ di->full_counter = 0; ++ } ++ ++ if (di->charge_status != old_charge_status) ++ power_supply_changed(&di->bat); ++ ++ return; ++} ++ ++static void ds2760_battery_work(struct work_struct *work) ++{ ++ struct ds2760_device_info *di = container_of(work, ++ struct ds2760_device_info, monitor_work.work); ++ const int interval = HZ * 60; ++ ++ dev_dbg(di->dev, "%s\n", __FUNCTION__); ++ ++ ds2760_battery_update_status(di); ++ queue_delayed_work(di->monitor_wqueue, &di->monitor_work, interval); ++ ++ return; ++} ++ ++#define to_ds2760_device_info(x) container_of((x), struct ds2760_device_info, \ ++ bat); ++ ++static void ds2760_battery_external_power_changed(struct power_supply *psy) ++{ ++ struct ds2760_device_info *di = to_ds2760_device_info(psy); ++ ++ dev_dbg(di->dev, "%s\n", __FUNCTION__); ++ ++ cancel_delayed_work(&di->monitor_work); ++ queue_delayed_work(di->monitor_wqueue, &di->monitor_work, HZ/10); ++ ++ return; ++} ++ ++static int ds2760_battery_get_property(struct power_supply *psy, ++ enum power_supply_property psp, ++ union power_supply_propval *val) ++{ ++ struct ds2760_device_info *di = to_ds2760_device_info(psy); ++ ++ switch (psp) { ++ case POWER_SUPPLY_PROP_STATUS: ++ val->intval = di->charge_status; ++ return 0; ++ default: ++ break; ++ } ++ ++ ds2760_battery_read_status(di); ++ ++ switch (psp) { ++ case POWER_SUPPLY_PROP_VOLTAGE_NOW: ++ val->intval = di->voltage_uV; ++ break; ++ case POWER_SUPPLY_PROP_CURRENT_NOW: ++ val->intval = di->current_uA; ++ break; ++ case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: ++ val->intval = di->rated_capacity; ++ break; ++ case POWER_SUPPLY_PROP_CHARGE_FULL: ++ val->intval = di->full_active_uAh; ++ break; ++ case POWER_SUPPLY_PROP_CHARGE_EMPTY: ++ val->intval = di->empty_uAh; ++ break; ++ case POWER_SUPPLY_PROP_CHARGE_NOW: ++ val->intval = di->accum_current_uAh; ++ break; ++ case POWER_SUPPLY_PROP_TEMP: ++ val->intval = di->temp_C; ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ return 0; ++} ++ ++static enum power_supply_property ds2760_battery_props[] = { ++ POWER_SUPPLY_PROP_STATUS, ++ POWER_SUPPLY_PROP_VOLTAGE_NOW, ++ POWER_SUPPLY_PROP_CURRENT_NOW, ++ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, ++ POWER_SUPPLY_PROP_CHARGE_FULL, ++ POWER_SUPPLY_PROP_CHARGE_EMPTY, ++ POWER_SUPPLY_PROP_CHARGE_NOW, ++ POWER_SUPPLY_PROP_TEMP, ++}; ++ ++static int ds2760_battery_probe(struct platform_device *pdev) ++{ ++ int retval = 0; ++ struct ds2760_device_info *di; ++ struct ds2760_platform_data *pdata; ++ ++ di = kzalloc(sizeof(*di), GFP_KERNEL); ++ if (!di) { ++ retval = -ENOMEM; ++ goto di_alloc_failed; ++ } ++ ++ platform_set_drvdata(pdev, di); ++ ++ pdata = pdev->dev.platform_data; ++ di->dev = &pdev->dev; ++ di->w1_dev = pdev->dev.parent; ++ di->bat.name = pdev->dev.bus_id; ++ di->bat.type = POWER_SUPPLY_TYPE_BATTERY; ++ di->bat.properties = ds2760_battery_props; ++ di->bat.num_properties = ARRAY_SIZE(ds2760_battery_props); ++ di->bat.get_property = ds2760_battery_get_property; ++ di->bat.external_power_changed = ++ ds2760_battery_external_power_changed; ++ di->bat.use_for_apm = 1; ++ ++ di->charge_status = POWER_SUPPLY_STATUS_UNKNOWN; ++ ++ retval = power_supply_register(&pdev->dev, &di->bat); ++ if (retval) { ++ dev_err(di->dev, "failed to register battery"); ++ goto batt_failed; ++ } ++ ++ INIT_DELAYED_WORK(&di->monitor_work, ds2760_battery_work); ++ di->monitor_wqueue = create_singlethread_workqueue(pdev->dev.bus_id); ++ if (!di->monitor_wqueue) { ++ retval = -ESRCH; ++ goto workqueue_failed; ++ } ++ queue_delayed_work(di->monitor_wqueue, &di->monitor_work, HZ * 1); ++ ++ goto success; ++ ++workqueue_failed: ++ power_supply_unregister(&di->bat); ++batt_failed: ++ kfree(di); ++di_alloc_failed: ++success: ++ return retval; ++} ++ ++static int ds2760_battery_remove(struct platform_device *pdev) ++{ ++ struct ds2760_device_info *di = platform_get_drvdata(pdev); ++ ++ cancel_rearming_delayed_workqueue(di->monitor_wqueue, ++ &di->monitor_work); ++ destroy_workqueue(di->monitor_wqueue); ++ power_supply_unregister(&di->bat); ++ ++ return 0; ++} ++ ++#ifdef CONFIG_PM ++ ++static int ds2760_battery_suspend(struct platform_device *pdev, ++ pm_message_t state) ++{ ++ struct ds2760_device_info *di = platform_get_drvdata(pdev); ++ ++ di->charge_status = POWER_SUPPLY_STATUS_UNKNOWN; ++ ++ return 0; ++} ++ ++static int ds2760_battery_resume(struct platform_device *pdev) ++{ ++ struct ds2760_device_info *di = platform_get_drvdata(pdev); ++ ++ di->charge_status = POWER_SUPPLY_STATUS_UNKNOWN; ++ power_supply_changed(&di->bat); ++ ++ cancel_delayed_work(&di->monitor_work); ++ queue_delayed_work(di->monitor_wqueue, &di->monitor_work, HZ); ++ ++ return 0; ++} ++ ++#else ++ ++#define ds2760_battery_suspend NULL ++#define ds2760_battery_resume NULL ++ ++#endif /* CONFIG_PM */ ++ ++static struct platform_driver ds2760_battery_driver = { ++ .driver = { ++ .name = "ds2760-battery", ++ }, ++ .probe = ds2760_battery_probe, ++ .remove = ds2760_battery_remove, ++ .suspend = ds2760_battery_suspend, ++ .resume = ds2760_battery_resume, ++}; ++ ++static int __init ds2760_battery_init(void) ++{ ++ return platform_driver_register(&ds2760_battery_driver); ++} ++ ++static void __exit ds2760_battery_exit(void) ++{ ++ platform_driver_unregister(&ds2760_battery_driver); ++ return; ++} ++ ++module_init(ds2760_battery_init); ++module_exit(ds2760_battery_exit); ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Szabolcs Gyurko <szabolcs.gyurko@tlt.hu>, " ++ "Matt Reimer <mreimer@vpop.net>, " ++ "Anton Vorontsov <cbou@mail.ru>"); ++MODULE_DESCRIPTION("ds2760 battery driver"); +Index: linux-2.6.22/drivers/power/Kconfig +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.22/drivers/power/Kconfig 2007-08-23 12:13:52.000000000 +0200 +@@ -0,0 +1,70 @@ ++menuconfig POWER_SUPPLY ++ tristate "Power supply class support" ++ help ++ Say Y here to enable power supply class support. This allows ++ power supply (batteries, AC, USB) monitoring by userspace ++ via sysfs and uevent (if available) and/or APM kernel interface ++ (if selected below). ++ ++if POWER_SUPPLY ++ ++config POWER_SUPPLY_DEBUG ++ bool "Power supply debug" ++ help ++ Say Y here to enable debugging messages for power supply class ++ and drivers. ++ ++config PDA_POWER ++ tristate "Generic PDA/phone power driver" ++ help ++ Say Y here to enable generic power driver for PDAs and phones with ++ one or two external power supplies (AC/USB) connected to main and ++ backup batteries, and optional builtin charger. ++ ++config APM_POWER ++ tristate "APM emulation for class batteries" ++ depends on APM_EMULATION ++ help ++ Say Y here to enable support APM status emulation using ++ battery class devices. ++ ++config BATTERY_DS2760 ++ tristate "DS2760 battery driver (HP iPAQ & others)" ++ select W1 ++ select W1_SLAVE_DS2760 ++ help ++ Say Y here to enable support for batteries with ds2760 chip. ++ ++config BATTERY_PMU ++ tristate "Apple PMU battery" ++ depends on ADB_PMU ++ help ++ Say Y here to expose battery information on Apple machines ++ through the generic battery class. ++ ++config BATTERY_OLPC ++ tristate "One Laptop Per Child battery" ++ depends on X86_32 ++ help ++ Say Y to enable support for the battery on the OLPC laptop. ++ ++# drivers below are not in battery2-2.6 tree ++ ++config ADC_BATTERY ++ tristate "Generic ADC battery driver" ++ depends on ADC && POWER_SUPPLY ++ help ++ Say Y here to enable support for battery monitoring using generic ADC device. ++ ++config IPAQ_MICRO_BATTERY ++ tristate "HP iPAQ Micro ASIC battery driver" ++ depends on IPAQ_MICRO && POWER_SUPPLY ++ help ++ Choose this option if you want to monitor battery status on ++ Compaq/HP iPAQ h3100 h3600 ++ ++config MCP_UCB1x00_SIMPAD_BATTERY ++ tristate "SIMpad Battery Reading Support" ++ depends on MCP_UCB1x00 && POWER_SUPPLY ++ ++endif # POWER_SUPPLY +Index: linux-2.6.22/drivers/power/Makefile +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.22/drivers/power/Makefile 2007-08-23 12:13:52.000000000 +0200 +@@ -0,0 +1,28 @@ ++power_supply-objs := power_supply_core.o ++ ++ifeq ($(CONFIG_SYSFS),y) ++power_supply-objs += power_supply_sysfs.o ++endif ++ ++ifeq ($(CONFIG_LEDS_TRIGGERS),y) ++power_supply-objs += power_supply_leds.o ++endif ++ ++ifeq ($(CONFIG_POWER_SUPPLY_DEBUG),y) ++EXTRA_CFLAGS += -DDEBUG ++endif ++ ++obj-$(CONFIG_POWER_SUPPLY) += power_supply.o ++ ++obj-$(CONFIG_PDA_POWER) += pda_power.o ++obj-$(CONFIG_APM_POWER) += apm_power.o ++ ++obj-$(CONFIG_BATTERY_DS2760) += ds2760_battery.o ++obj-$(CONFIG_BATTERY_PMU) += pmu_battery.o ++obj-$(CONFIG_BATTERY_OLPC) += olpc_battery.o ++ ++# drivers below are not in battery2-2.6 tree ++ ++obj-$(CONFIG_ADC_BATTERY) += adc_battery.o ++obj-$(CONFIG_IPAQ_MICRO_BATTERY) += micro_battery.o ++obj-$(CONFIG_MCP_UCB1x00_SIMPAD_BATTERY) += simpad-battery.o +Index: linux-2.6.22/drivers/power/micro_battery.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.22/drivers/power/micro_battery.c 2007-08-23 12:25:20.000000000 +0200 +@@ -0,0 +1,257 @@ ++/* ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ * ++ * h3600 atmel micro companion support, battery subdevice ++ * based on previous kernel 2.4 version ++ * Author : Alessandro Gardich <gremlin@gremlin.it> ++ * ++ */ ++ ++ ++#include <linux/module.h> ++#include <linux/version.h> ++ ++#include <linux/init.h> ++#include <linux/fs.h> ++#include <linux/interrupt.h> ++#include <linux/sched.h> ++#include <linux/pm.h> ++#include <linux/sysctl.h> ++#include <linux/proc_fs.h> ++#include <linux/delay.h> ++#include <linux/device.h> ++#include <linux/power_supply.h> ++#include <linux/platform_device.h> ++#include <linux/timer.h> ++ ++#include <asm/arch/hardware.h> ++ ++#include <asm/arch/h3600.h> ++#include <asm/arch/SA-1100.h> ++ ++#include <asm/hardware/micro.h> ++ ++#define BATT_PERIOD 10*HZ ++ ++#define H3600_BATT_STATUS_HIGH 0x01 ++#define H3600_BATT_STATUS_LOW 0x02 ++#define H3600_BATT_STATUS_CRITICAL 0x04 ++#define H3600_BATT_STATUS_CHARGING 0x08 ++#define H3600_BATT_STATUS_CHARGEMAIN 0x10 ++#define H3600_BATT_STATUS_DEAD 0x20 /* Battery will not charge */ ++#define H3600_BATT_STATUS_NOTINSTALLED 0x20 /* For expansion pack batteries */ ++#define H3600_BATT_STATUS_FULL 0x40 /* Battery fully charged (and connected to AC) */ ++#define H3600_BATT_STATUS_NOBATTERY 0x80 ++#define H3600_BATT_STATUS_UNKNOWN 0xff ++ ++ ++//static struct power_supply_dev *micro_battery; ++ ++static micro_private_t *p_micro; ++ ++struct timer_list batt_timer; ++ ++struct { ++ int ac; ++ int update_time; ++ int chemistry; ++ int voltage; ++ int temperature; ++ int flag; ++} micro_battery; ++ ++static void micro_battery_receive (int len, unsigned char *data) { ++ if (0) { ++ printk(KERN_ERR "h3600_battery - AC = %02x\n", data[0]); ++ printk(KERN_ERR "h3600_battery - BAT1 chemistry = %02x\n", data[1]); ++ printk(KERN_ERR "h3600_battery - BAT1 voltage = %d %02x%02x\n", (data[3]<<8)+data[2], data[2], data[3]); ++ printk(KERN_ERR "h3600_battery - BAT1 status = %02x\n", data[4]); ++ } ++ ++ micro_battery.ac = data[0]; ++ micro_battery.chemistry = data[1]; ++ micro_battery.voltage = ((((unsigned short)data[3]<<8)+data[2]) * 5000L ) * 1000 / 1024; ++ micro_battery.flag = data[4]; ++ ++ if (len == 9) { ++ if (0) { ++ printk(KERN_ERR "h3600_battery - BAT2 chemistry = %02x\n", data[5]); ++ printk(KERN_ERR "h3600_battery - BAT2 voltage = %d %02x%02x\n", (data[7]<<8)+data[6], data[6], data[7]); ++ printk(KERN_ERR "h3600_battery - BAT2 status = %02x\n", data[8]); ++ } ++ } ++} ++ ++static void micro_temperature_receive (int len, unsigned char *data) { ++ micro_battery.temperature = ((unsigned short)data[1]<<8)+data[0]; ++} ++ ++void h3600_battery_read_status(unsigned long data) { ++ ++ if (++data % 2) ++ h3600_micro_tx_msg(0x09,0,NULL); ++ else ++ h3600_micro_tx_msg(0x06,0,NULL); ++ ++ batt_timer.expires += BATT_PERIOD; ++ batt_timer.data = data; ++ ++ add_timer(&batt_timer); ++} ++ ++int get_capacity(struct power_supply *b) { ++ switch (micro_battery.flag) { ++ case H3600_BATT_STATUS_HIGH : return 100; break; ++ case H3600_BATT_STATUS_LOW : return 50; break; ++ case H3600_BATT_STATUS_CRITICAL : return 5; break; ++ default: break; ++ } ++ return 0; ++} ++ ++int get_status(struct power_supply *b) { ++ ++ if (micro_battery.flag == H3600_BATT_STATUS_UNKNOWN) ++ return POWER_SUPPLY_STATUS_UNKNOWN; ++ ++ if (micro_battery.flag & H3600_BATT_STATUS_FULL) ++ return POWER_SUPPLY_STATUS_FULL; ++ ++ if ((micro_battery.flag & H3600_BATT_STATUS_CHARGING) || ++ (micro_battery.flag & H3600_BATT_STATUS_CHARGEMAIN)) ++ return POWER_SUPPLY_STATUS_CHARGING; ++ ++ return POWER_SUPPLY_STATUS_DISCHARGING; ++} ++ ++static int micro_batt_get_property(struct power_supply *b, ++ enum power_supply_property psp, ++ union power_supply_propval *val) ++{ ++ switch (psp) { ++ case POWER_SUPPLY_PROP_STATUS: ++ val->intval = get_status(b); ++ break; ++ case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: ++ val->intval = 4700000; ++ break; ++ case POWER_SUPPLY_PROP_CAPACITY: ++ val->intval = get_capacity(b); ++ break; ++ case POWER_SUPPLY_PROP_TEMP: ++ val->intval = micro_battery.temperature; ++ break; ++ case POWER_SUPPLY_PROP_VOLTAGE_NOW: ++ val->intval = micro_battery.voltage; ++ break; ++ default: ++ return -EINVAL; ++ }; ++ ++ return 0; ++} ++ ++static enum power_supply_property micro_batt_props[] = { ++ POWER_SUPPLY_PROP_STATUS, ++ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, ++ POWER_SUPPLY_PROP_CAPACITY, ++ POWER_SUPPLY_PROP_TEMP, ++ POWER_SUPPLY_PROP_VOLTAGE_NOW, ++}; ++ ++static struct power_supply h3600_battery = { ++ .name = "main-battery", ++ .properties = micro_batt_props, ++ .num_properties = ARRAY_SIZE(micro_batt_props), ++ .get_property = micro_batt_get_property, ++ .use_for_apm = 1, ++}; ++ ++static int micro_batt_probe (struct platform_device *pdev) ++{ ++ if (1) printk(KERN_ERR "micro battery probe : begin\n"); ++ ++ power_supply_register(&pdev->dev, &h3600_battery); ++ ++ { /*--- callback ---*/ ++ p_micro = platform_get_drvdata(pdev); ++ spin_lock(p_micro->lock); ++ p_micro->h_batt = micro_battery_receive; ++ p_micro->h_temp = micro_temperature_receive; ++ spin_unlock(p_micro->lock); ++ } ++ ++ { /*--- timer ---*/ ++ init_timer(&batt_timer); ++ batt_timer.expires = jiffies + BATT_PERIOD; ++ batt_timer.data = 0; ++ batt_timer.function = h3600_battery_read_status; ++ ++ add_timer(&batt_timer); ++ } ++ ++ if (1) printk(KERN_ERR "micro battery probe : end\n"); ++ return 0; ++} ++ ++static int micro_batt_remove (struct platform_device *pdev) ++{ ++ power_supply_unregister(&h3600_battery); ++ { /*--- callback ---*/ ++ init_timer(&batt_timer); ++ p_micro->h_batt = NULL; ++ p_micro->h_temp = NULL; ++ spin_unlock(p_micro->lock); ++ } ++ { /*--- timer ---*/ ++ del_timer_sync(&batt_timer); ++ } ++ return 0; ++} ++ ++static int micro_batt_suspend ( struct platform_device *pdev, pm_message_t state) ++{ ++ { /*--- timer ---*/ ++ del_timer(&batt_timer); ++ } ++ return 0; ++} ++ ++static int micro_batt_resume ( struct platform_device *pdev) ++{ ++ { /*--- timer ---*/ ++ add_timer(&batt_timer); ++ } ++ return 0; ++} ++ ++struct platform_driver micro_batt_device_driver = { ++ .driver = { ++ .name = "h3600-micro-battery", ++ }, ++ .probe = micro_batt_probe, ++ .remove = micro_batt_remove, ++ .suspend = micro_batt_suspend, ++ .resume = micro_batt_resume, ++}; ++ ++static int micro_batt_init (void) ++{ ++ return platform_driver_register(µ_batt_device_driver); ++} ++ ++static void micro_batt_cleanup (void) ++{ ++ platform_driver_unregister (µ_batt_device_driver); ++} ++ ++module_init (micro_batt_init); ++module_exit (micro_batt_cleanup); ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("gremlin.it"); ++MODULE_DESCRIPTION("driver for iPAQ Atmel micro battery"); ++ ++ +Index: linux-2.6.22/drivers/power/olpc_battery.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.22/drivers/power/olpc_battery.c 2007-08-23 12:13:52.000000000 +0200 +@@ -0,0 +1,302 @@ ++/* ++ * Battery driver for One Laptop Per Child board. ++ * ++ * Copyright © 2006 David Woodhouse <dwmw2@infradead.org> ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include <linux/module.h> ++#include <linux/err.h> ++#include <linux/platform_device.h> ++#include <linux/power_supply.h> ++#include <linux/jiffies.h> ++#include <linux/sched.h> ++#include <asm/io.h> ++ ++#define wBAT_VOLTAGE 0xf900 /* *9.76/32, mV */ ++#define wBAT_CURRENT 0xf902 /* *15.625/120, mA */ ++#define wBAT_TEMP 0xf906 /* *256/1000, °C */ ++#define wAMB_TEMP 0xf908 /* *256/1000, °C */ ++#define SOC 0xf910 /* percentage */ ++#define sMBAT_STATUS 0xfaa4 ++#define sBAT_PRESENT 1 ++#define sBAT_FULL 2 ++#define sBAT_DESTROY 4 /* what is this exactly? */ ++#define sBAT_LOW 32 ++#define sBAT_DISCHG 64 ++#define sMCHARGE_STATUS 0xfaa5 ++#define sBAT_CHARGE 1 ++#define sBAT_OVERTEMP 4 ++#define sBAT_NiMH 8 ++#define sPOWER_FLAG 0xfa40 ++#define ADAPTER_IN 1 ++ ++/********************************************************************* ++ * EC locking and access ++ *********************************************************************/ ++ ++static int lock_ec(void) ++{ ++ unsigned long timeo = jiffies + HZ / 20; ++ ++ while (1) { ++ unsigned char lock = inb(0x6c) & 0x80; ++ if (!lock) ++ return 0; ++ if (time_after(jiffies, timeo)) { ++ printk(KERN_ERR "olpc_battery: failed to lock EC for " ++ "battery access\n"); ++ return 1; ++ } ++ yield(); ++ } ++} ++ ++static void unlock_ec(void) ++{ ++ outb(0xff, 0x6c); ++ return; ++} ++ ++static unsigned char read_ec_byte(unsigned short adr) ++{ ++ outb(adr >> 8, 0x381); ++ outb(adr, 0x382); ++ return inb(0x383); ++} ++ ++static unsigned short read_ec_word(unsigned short adr) ++{ ++ return (read_ec_byte(adr) << 8) | read_ec_byte(adr + 1); ++} ++ ++/********************************************************************* ++ * Power ++ *********************************************************************/ ++ ++static int olpc_ac_get_prop(struct power_supply *psy, ++ enum power_supply_property psp, ++ union power_supply_propval *val) ++{ ++ int ret = 0; ++ ++ if (lock_ec()) ++ return -EIO; ++ ++ switch (psp) { ++ case POWER_SUPPLY_PROP_ONLINE: ++ if (!(read_ec_byte(sMBAT_STATUS) & sBAT_PRESENT)) { ++ ret = -ENODEV; ++ goto out; ++ } ++ val->intval = !!(read_ec_byte(sPOWER_FLAG) & ADAPTER_IN); ++ break; ++ default: ++ ret = -EINVAL; ++ break; ++ } ++out: ++ unlock_ec(); ++ return ret; ++} ++ ++static enum power_supply_property olpc_ac_props[] = { ++ POWER_SUPPLY_PROP_ONLINE, ++}; ++ ++static struct power_supply olpc_ac = { ++ .name = "olpc-ac", ++ .type = POWER_SUPPLY_TYPE_MAINS, ++ .properties = olpc_ac_props, ++ .num_properties = ARRAY_SIZE(olpc_ac_props), ++ .get_property = olpc_ac_get_prop, ++}; ++ ++/********************************************************************* ++ * Battery properties ++ *********************************************************************/ ++ ++static int olpc_bat_get_property(struct power_supply *psy, ++ enum power_supply_property psp, ++ union power_supply_propval *val) ++{ ++ int ret = 0; ++ ++ if (lock_ec()) ++ return -EIO; ++ ++ switch (psp) { ++ case POWER_SUPPLY_PROP_STATUS: ++ { ++ int status = POWER_SUPPLY_STATUS_UNKNOWN; ++ ++ val->intval = read_ec_byte(sMBAT_STATUS); ++ ++ if (!(val->intval & sBAT_PRESENT)) { ++ ret = -ENODEV; ++ goto out; ++ } ++ ++ if (val->intval & sBAT_DISCHG) ++ status = POWER_SUPPLY_STATUS_DISCHARGING; ++ else if (val->intval & sBAT_FULL) ++ status = POWER_SUPPLY_STATUS_FULL; ++ ++ val->intval = read_ec_byte(sMCHARGE_STATUS); ++ if (val->intval & sBAT_CHARGE) ++ status = POWER_SUPPLY_STATUS_CHARGING; ++ ++ val->intval = status; ++ break; ++ } ++ case POWER_SUPPLY_PROP_PRESENT: ++ val->intval = !!(read_ec_byte(sMBAT_STATUS) & sBAT_PRESENT); ++ break; ++ case POWER_SUPPLY_PROP_HEALTH: ++ val->intval = read_ec_byte(sMCHARGE_STATUS); ++ if (val->intval & sBAT_OVERTEMP) ++ val->intval = POWER_SUPPLY_HEALTH_OVERHEAT; ++ else ++ val->intval = POWER_SUPPLY_HEALTH_GOOD; ++ break; ++ case POWER_SUPPLY_PROP_TECHNOLOGY: ++ val->intval = read_ec_byte(sMCHARGE_STATUS); ++ if (val->intval & sBAT_NiMH) ++ val->intval = POWER_SUPPLY_TECHNOLOGY_NIMH; ++ else ++ val->intval = POWER_SUPPLY_TECHNOLOGY_UNKNOWN; ++ break; ++ case POWER_SUPPLY_PROP_VOLTAGE_AVG: ++ val->intval = read_ec_byte(wBAT_VOLTAGE) * 9760L / 32; ++ break; ++ case POWER_SUPPLY_PROP_CURRENT_AVG: ++ val->intval = read_ec_byte(wBAT_CURRENT) * 15625L / 120; ++ break; ++ case POWER_SUPPLY_PROP_CAPACITY: ++ val->intval = read_ec_byte(SOC); ++ break; ++ case POWER_SUPPLY_PROP_CAPACITY_LEVEL: ++ val->intval = read_ec_byte(sMBAT_STATUS); ++ if (val->intval & sBAT_FULL) ++ val->intval = POWER_SUPPLY_CAPACITY_LEVEL_FULL; ++ else if (val->intval & sBAT_LOW) ++ val->intval = POWER_SUPPLY_CAPACITY_LEVEL_LOW; ++ else ++ val->intval = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; ++ break; ++ case POWER_SUPPLY_PROP_TEMP: ++ val->intval = read_ec_byte(wBAT_TEMP) * 256 / 100; ++ break; ++ case POWER_SUPPLY_PROP_TEMP_AMBIENT: ++ val->intval = read_ec_byte(wAMB_TEMP) * 256 / 100; ++ break; ++ default: ++ ret = -EINVAL; ++ break; ++ } ++ ++out: ++ unlock_ec(); ++ return ret; ++} ++ ++static enum power_supply_property olpc_bat_props[] = { ++ POWER_SUPPLY_PROP_STATUS, ++ POWER_SUPPLY_PROP_PRESENT, ++ POWER_SUPPLY_PROP_HEALTH, ++ POWER_SUPPLY_PROP_TECHNOLOGY, ++ POWER_SUPPLY_PROP_VOLTAGE_AVG, ++ POWER_SUPPLY_PROP_CURRENT_AVG, ++ POWER_SUPPLY_PROP_CAPACITY, ++ POWER_SUPPLY_PROP_CAPACITY_LEVEL, ++ POWER_SUPPLY_PROP_TEMP, ++ POWER_SUPPLY_PROP_TEMP_AMBIENT, ++}; ++ ++/********************************************************************* ++ * Initialisation ++ *********************************************************************/ ++ ++static struct platform_device *bat_pdev; ++ ++static struct power_supply olpc_bat = { ++ .properties = olpc_bat_props, ++ .num_properties = ARRAY_SIZE(olpc_bat_props), ++ .get_property = olpc_bat_get_property, ++ .use_for_apm = 1, ++}; ++ ++static int __init olpc_bat_init(void) ++{ ++ int ret = 0; ++ unsigned short tmp; ++ ++ if (!request_region(0x380, 4, "olpc-battery")) { ++ ret = -EIO; ++ goto region_failed; ++ } ++ ++ if (lock_ec()) { ++ ret = -EIO; ++ goto lock_failed; ++ } ++ ++ tmp = read_ec_word(0xfe92); ++ unlock_ec(); ++ ++ if (tmp != 0x380) { ++ /* Doesn't look like OLPC EC */ ++ ret = -ENODEV; ++ goto not_olpc_ec; ++ } ++ ++ bat_pdev = platform_device_register_simple("olpc-battery", 0, NULL, 0); ++ if (IS_ERR(bat_pdev)) { ++ ret = PTR_ERR(bat_pdev); ++ goto pdev_failed; ++ } ++ ++ ret = power_supply_register(&bat_pdev->dev, &olpc_ac); ++ if (ret) ++ goto ac_failed; ++ ++ olpc_bat.name = bat_pdev->name; ++ ++ ret = power_supply_register(&bat_pdev->dev, &olpc_bat); ++ if (ret) ++ goto battery_failed; ++ ++ goto success; ++ ++battery_failed: ++ power_supply_unregister(&olpc_ac); ++ac_failed: ++ platform_device_unregister(bat_pdev); ++pdev_failed: ++not_olpc_ec: ++lock_failed: ++ release_region(0x380, 4); ++region_failed: ++success: ++ return ret; ++} ++ ++static void __exit olpc_bat_exit(void) ++{ ++ power_supply_unregister(&olpc_bat); ++ power_supply_unregister(&olpc_ac); ++ platform_device_unregister(bat_pdev); ++ release_region(0x380, 4); ++ return; ++} ++ ++module_init(olpc_bat_init); ++module_exit(olpc_bat_exit); ++ ++MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); ++MODULE_LICENSE("GPL"); ++MODULE_DESCRIPTION("Battery driver for One Laptop Per Child " ++ "($100 laptop) board."); +Index: linux-2.6.22/drivers/power/pda_power.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.22/drivers/power/pda_power.c 2007-08-23 12:13:52.000000000 +0200 +@@ -0,0 +1,263 @@ ++/* ++ * Common power driver for PDAs and phones with one or two external ++ * power supplies (AC/USB) connected to main and backup batteries, ++ * and optional builtin charger. ++ * ++ * Copyright 2007 Anton Vorontsov <cbou@mail.ru> ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/interrupt.h> ++#include <linux/power_supply.h> ++#include <linux/pda_power.h> ++#include <linux/timer.h> ++#include <linux/jiffies.h> ++ ++static inline unsigned int get_irq_flags(struct resource *res) ++{ ++ unsigned int flags = IRQF_DISABLED | IRQF_SHARED; ++ ++ flags |= res->flags & IRQF_TRIGGER_MASK; ++ ++ return flags; ++} ++ ++static struct device *dev; ++static struct pda_power_pdata *pdata; ++static struct resource *ac_irq, *usb_irq; ++static struct timer_list charger_timer; ++static struct timer_list supply_timer; ++ ++static int pda_power_get_property(struct power_supply *psy, ++ enum power_supply_property psp, ++ union power_supply_propval *val) ++{ ++ switch (psp) { ++ case POWER_SUPPLY_PROP_ONLINE: ++ if (psy->type == POWER_SUPPLY_TYPE_MAINS) ++ val->intval = pdata->is_ac_online ? ++ pdata->is_ac_online() : 0; ++ else ++ val->intval = pdata->is_usb_online ? ++ pdata->is_usb_online() : 0; ++ break; ++ default: ++ return -EINVAL; ++ } ++ return 0; ++} ++ ++static enum power_supply_property pda_power_props[] = { ++ POWER_SUPPLY_PROP_ONLINE, ++}; ++ ++static char *pda_power_supplied_to[] = { ++ "main-battery", ++ "backup-battery", ++}; ++ ++static struct power_supply pda_power_supplies[] = { ++ { ++ .name = "ac", ++ .type = POWER_SUPPLY_TYPE_MAINS, ++ .supplied_to = pda_power_supplied_to, ++ .num_supplicants = ARRAY_SIZE(pda_power_supplied_to), ++ .properties = pda_power_props, ++ .num_properties = ARRAY_SIZE(pda_power_props), ++ .get_property = pda_power_get_property, ++ }, ++ { ++ .name = "usb", ++ .type = POWER_SUPPLY_TYPE_USB, ++ .supplied_to = pda_power_supplied_to, ++ .num_supplicants = ARRAY_SIZE(pda_power_supplied_to), ++ .properties = pda_power_props, ++ .num_properties = ARRAY_SIZE(pda_power_props), ++ .get_property = pda_power_get_property, ++ }, ++}; ++ ++static void update_charger(void) ++{ ++ if (!pdata->set_charge) ++ return; ++ ++ if (pdata->is_ac_online && pdata->is_ac_online()) { ++ dev_dbg(dev, "charger on (AC)\n"); ++ pdata->set_charge(PDA_POWER_CHARGE_AC); ++ } ++ else if (pdata->is_usb_online && pdata->is_usb_online()) { ++ dev_dbg(dev, "charger on (USB)\n"); ++ pdata->set_charge(PDA_POWER_CHARGE_USB); ++ } ++ else { ++ dev_dbg(dev, "charger off\n"); ++ pdata->set_charge(0); ++ } ++ ++ return; ++} ++ ++static void supply_timer_func(unsigned long irq) ++{ ++ if (ac_irq && irq == ac_irq->start) ++ power_supply_changed(&pda_power_supplies[0]); ++ else if (usb_irq && irq == usb_irq->start) ++ power_supply_changed(&pda_power_supplies[1]); ++ return; ++} ++ ++static void charger_timer_func(unsigned long irq) ++{ ++ update_charger(); ++ ++ /* Okay, charger set. Now wait a bit before notifying supplicants, ++ * charge power should stabilize. */ ++ supply_timer.data = irq; ++ mod_timer(&supply_timer, ++ jiffies + msecs_to_jiffies(pdata->wait_for_charger)); ++ return; ++} ++ ++static irqreturn_t power_changed_isr(int irq, void *unused) ++{ ++ /* Wait a bit before reading ac/usb line status and setting charger, ++ * because ac/usb status readings may lag from irq. */ ++ charger_timer.data = irq; ++ mod_timer(&charger_timer, ++ jiffies + msecs_to_jiffies(pdata->wait_for_status)); ++ return IRQ_HANDLED; ++} ++ ++static int pda_power_probe(struct platform_device *pdev) ++{ ++ int ret = 0; ++ ++ dev = &pdev->dev; ++ ++ if (pdev->id != -1) { ++ dev_err(dev, "it's meaningless to register several " ++ "pda_powers, use id = -1\n"); ++ ret = -EINVAL; ++ goto wrongid; ++ } ++ ++ pdata = pdev->dev.platform_data; ++ ++ update_charger(); ++ ++ if (!pdata->wait_for_status) ++ pdata->wait_for_status = 500; ++ ++ if (!pdata->wait_for_charger) ++ pdata->wait_for_charger = 500; ++ ++ setup_timer(&charger_timer, charger_timer_func, 0); ++ setup_timer(&supply_timer, supply_timer_func, 0); ++ ++ ac_irq = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "ac"); ++ usb_irq = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "usb"); ++ if (!ac_irq && !usb_irq) { ++ dev_err(dev, "no ac/usb irq specified\n"); ++ ret = -ENODEV; ++ goto noirqs; ++ } ++ ++ if (pdata->supplied_to) { ++ pda_power_supplies[0].supplied_to = pdata->supplied_to; ++ pda_power_supplies[1].supplied_to = pdata->supplied_to; ++ pda_power_supplies[0].num_supplicants = pdata->num_supplicants; ++ pda_power_supplies[1].num_supplicants = pdata->num_supplicants; ++ } ++ ++ ret = power_supply_register(&pdev->dev, &pda_power_supplies[0]); ++ if (ret) { ++ dev_err(dev, "failed to register %s power supply\n", ++ pda_power_supplies[0].name); ++ goto supply0_failed; ++ } ++ ++ ret = power_supply_register(&pdev->dev, &pda_power_supplies[1]); ++ if (ret) { ++ dev_err(dev, "failed to register %s power supply\n", ++ pda_power_supplies[1].name); ++ goto supply1_failed; ++ } ++ ++ if (ac_irq) { ++ ret = request_irq(ac_irq->start, power_changed_isr, ++ get_irq_flags(ac_irq), ac_irq->name, ++ &pda_power_supplies[0]); ++ if (ret) { ++ dev_err(dev, "request ac irq failed\n"); ++ goto ac_irq_failed; ++ } ++ } ++ ++ if (usb_irq) { ++ ret = request_irq(usb_irq->start, power_changed_isr, ++ get_irq_flags(usb_irq), usb_irq->name, ++ &pda_power_supplies[1]); ++ if (ret) { ++ dev_err(dev, "request usb irq failed\n"); ++ goto usb_irq_failed; ++ } ++ } ++ ++ goto success; ++ ++usb_irq_failed: ++ if (ac_irq) ++ free_irq(ac_irq->start, &pda_power_supplies[0]); ++ac_irq_failed: ++ power_supply_unregister(&pda_power_supplies[1]); ++supply1_failed: ++ power_supply_unregister(&pda_power_supplies[0]); ++supply0_failed: ++noirqs: ++wrongid: ++success: ++ return ret; ++} ++ ++static int pda_power_remove(struct platform_device *pdev) ++{ ++ if (usb_irq) ++ free_irq(usb_irq->start, &pda_power_supplies[1]); ++ if (ac_irq) ++ free_irq(ac_irq->start, &pda_power_supplies[0]); ++ del_timer_sync(&charger_timer); ++ del_timer_sync(&supply_timer); ++ power_supply_unregister(&pda_power_supplies[1]); ++ power_supply_unregister(&pda_power_supplies[0]); ++ return 0; ++} ++ ++static struct platform_driver pda_power_pdrv = { ++ .driver = { ++ .name = "pda-power", ++ }, ++ .probe = pda_power_probe, ++ .remove = pda_power_remove, ++}; ++ ++static int __init pda_power_init(void) ++{ ++ return platform_driver_register(&pda_power_pdrv); ++} ++ ++static void __exit pda_power_exit(void) ++{ ++ platform_driver_unregister(&pda_power_pdrv); ++ return; ++} ++ ++module_init(pda_power_init); ++module_exit(pda_power_exit); ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Anton Vorontsov <cbou@mail.ru>"); +Index: linux-2.6.22/drivers/power/pmu_battery.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.22/drivers/power/pmu_battery.c 2007-08-23 12:13:52.000000000 +0200 +@@ -0,0 +1,215 @@ ++/* ++ * Battery class driver for Apple PMU ++ * ++ * Copyright © 2006 David Woodhouse <dwmw2@infradead.org> ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/err.h> ++#include <linux/power_supply.h> ++#include <linux/adb.h> ++#include <linux/pmu.h> ++ ++static struct pmu_battery_dev { ++ struct power_supply bat; ++ struct pmu_battery_info *pbi; ++ char name[16]; ++ int propval; ++} *pbats[PMU_MAX_BATTERIES]; ++ ++#define to_pmu_battery_dev(x) container_of(x, struct pmu_battery_dev, bat) ++ ++/********************************************************************* ++ * Power ++ *********************************************************************/ ++ ++static int pmu_get_ac_prop(struct power_supply *psy, ++ enum power_supply_property psp, ++ union power_supply_propval *val) ++{ ++ switch (psp) { ++ case POWER_SUPPLY_PROP_ONLINE: ++ val->intval = (!!(pmu_power_flags & PMU_PWR_AC_PRESENT)) || ++ (pmu_battery_count == 0); ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ return 0; ++} ++ ++static enum power_supply_property pmu_ac_props[] = { ++ POWER_SUPPLY_PROP_ONLINE, ++}; ++ ++static struct power_supply pmu_ac = { ++ .name = "pmu-ac", ++ .type = POWER_SUPPLY_TYPE_MAINS, ++ .properties = pmu_ac_props, ++ .num_properties = ARRAY_SIZE(pmu_ac_props), ++ .get_property = pmu_get_ac_prop, ++}; ++ ++/********************************************************************* ++ * Battery properties ++ *********************************************************************/ ++ ++static char *pmu_batt_types[] = { ++ "Smart", "Comet", "Hooper", "Unknown" ++}; ++ ++static char *pmu_bat_get_model_name(struct pmu_battery_info *pbi) ++{ ++ switch (pbi->flags & PMU_BATT_TYPE_MASK) { ++ case PMU_BATT_TYPE_SMART: ++ return pmu_batt_types[0]; ++ case PMU_BATT_TYPE_COMET: ++ return pmu_batt_types[1]; ++ case PMU_BATT_TYPE_HOOPER: ++ return pmu_batt_types[2]; ++ default: break; ++ } ++ return pmu_batt_types[3]; ++} ++ ++static int pmu_bat_get_property(struct power_supply *psy, ++ enum power_supply_property psp, ++ union power_supply_propval *val) ++{ ++ struct pmu_battery_dev *pbat = to_pmu_battery_dev(psy); ++ struct pmu_battery_info *pbi = pbat->pbi; ++ ++ switch (psp) { ++ case POWER_SUPPLY_PROP_STATUS: ++ if (pbi->flags & PMU_BATT_CHARGING) ++ val->intval = POWER_SUPPLY_STATUS_CHARGING; ++ else ++ val->intval = POWER_SUPPLY_STATUS_DISCHARGING; ++ break; ++ case POWER_SUPPLY_PROP_PRESENT: ++ val->intval = !!(pbi->flags & PMU_BATT_PRESENT); ++ break; ++ case POWER_SUPPLY_PROP_MODEL_NAME: ++ val->strval = pmu_bat_get_model_name(pbi); ++ break; ++ case POWER_SUPPLY_PROP_ENERGY_AVG: ++ val->intval = pbi->charge * 1000; /* mWh -> µWh */ ++ break; ++ case POWER_SUPPLY_PROP_ENERGY_FULL: ++ val->intval = pbi->max_charge * 1000; /* mWh -> µWh */ ++ break; ++ case POWER_SUPPLY_PROP_CURRENT_AVG: ++ val->intval = pbi->amperage * 1000; /* mA -> µA */ ++ break; ++ case POWER_SUPPLY_PROP_VOLTAGE_AVG: ++ val->intval = pbi->voltage * 1000; /* mV -> µV */ ++ break; ++ case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: ++ val->intval = pbi->time_remaining; ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ return 0; ++} ++ ++static enum power_supply_property pmu_bat_props[] = { ++ POWER_SUPPLY_PROP_STATUS, ++ POWER_SUPPLY_PROP_PRESENT, ++ POWER_SUPPLY_PROP_MODEL_NAME, ++ POWER_SUPPLY_PROP_ENERGY_AVG, ++ POWER_SUPPLY_PROP_ENERGY_FULL, ++ POWER_SUPPLY_PROP_CURRENT_AVG, ++ POWER_SUPPLY_PROP_VOLTAGE_AVG, ++ POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, ++}; ++ ++/********************************************************************* ++ * Initialisation ++ *********************************************************************/ ++ ++static struct platform_device *bat_pdev; ++ ++static int __init pmu_bat_init(void) ++{ ++ int ret; ++ int i; ++ ++ bat_pdev = platform_device_register_simple("pmu-battery", ++ 0, NULL, 0); ++ if (IS_ERR(bat_pdev)) { ++ ret = PTR_ERR(bat_pdev); ++ goto pdev_register_failed; ++ } ++ ++ ret = power_supply_register(&bat_pdev->dev, &pmu_ac); ++ if (ret) ++ goto ac_register_failed; ++ ++ for (i = 0; i < pmu_battery_count; i++) { ++ struct pmu_battery_dev *pbat = kzalloc(sizeof(*pbat), ++ GFP_KERNEL); ++ if (!pbat) ++ break; ++ ++ sprintf(pbat->name, "PMU battery %d", i); ++ pbat->bat.name = pbat->name; ++ pbat->bat.properties = pmu_bat_props; ++ pbat->bat.num_properties = ARRAY_SIZE(pmu_bat_props); ++ pbat->bat.get_property = pmu_bat_get_property; ++ pbat->pbi = &pmu_batteries[i]; ++ ++ ret = power_supply_register(&bat_pdev->dev, &pbat->bat); ++ if (ret) { ++ kfree(pbat); ++ goto battery_register_failed; ++ } ++ pbats[i] = pbat; ++ } ++ ++ goto success; ++ ++battery_register_failed: ++ while (i--) { ++ if (!pbats[i]) ++ continue; ++ power_supply_unregister(&pbats[i]->bat); ++ kfree(pbats[i]); ++ } ++ power_supply_unregister(&pmu_ac); ++ac_register_failed: ++ platform_device_unregister(bat_pdev); ++pdev_register_failed: ++success: ++ return ret; ++} ++ ++static void __exit pmu_bat_exit(void) ++{ ++ int i; ++ ++ for (i = 0; i < PMU_MAX_BATTERIES; i++) { ++ if (!pbats[i]) ++ continue; ++ power_supply_unregister(&pbats[i]->bat); ++ kfree(pbats[i]); ++ } ++ power_supply_unregister(&pmu_ac); ++ platform_device_unregister(bat_pdev); ++ ++ return; ++} ++ ++module_init(pmu_bat_init); ++module_exit(pmu_bat_exit); ++ ++MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); ++MODULE_LICENSE("GPL"); ++MODULE_DESCRIPTION("PMU battery driver"); +Index: linux-2.6.22/drivers/power/power_supply_core.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.22/drivers/power/power_supply_core.c 2007-08-23 12:13:52.000000000 +0200 +@@ -0,0 +1,168 @@ ++/* ++ * Universal power supply monitor class ++ * ++ * Copyright (c) 2007 Anton Vorontsov <cbou@mail.ru> ++ * Copyright (c) 2004 Szabolcs Gyurko ++ * Copyright (c) 2003 Ian Molton <spyro@f2s.com> ++ * ++ * Modified: 2004, Oct Szabolcs Gyurko ++ * ++ * You may use this code as per GPL version 2 ++ */ ++ ++#include <linux/module.h> ++#include <linux/types.h> ++#include <linux/init.h> ++#include <linux/device.h> ++#include <linux/err.h> ++#include <linux/power_supply.h> ++#include "power_supply.h" ++ ++struct class *power_supply_class; ++ ++static void power_supply_changed_work(struct work_struct *work) ++{ ++ struct power_supply *psy = container_of(work, struct power_supply, ++ changed_work); ++ int i; ++ ++ dev_dbg(psy->dev, "%s\n", __FUNCTION__); ++ ++ for (i = 0; i < psy->num_supplicants; i++) { ++ struct device *dev; ++ ++ down(&power_supply_class->sem); ++ list_for_each_entry(dev, &power_supply_class->devices, node) { ++ struct power_supply *pst = dev_get_drvdata(dev); ++ ++ if (!strcmp(psy->supplied_to[i], pst->name)) { ++ if (pst->external_power_changed) ++ pst->external_power_changed(pst); ++ } ++ } ++ up(&power_supply_class->sem); ++ } ++ ++ power_supply_update_leds(psy); ++ ++ kobject_uevent(&psy->dev->kobj, KOBJ_CHANGE); ++ ++ return; ++} ++ ++void power_supply_changed(struct power_supply *psy) ++{ ++ dev_dbg(psy->dev, "%s\n", __FUNCTION__); ++ ++ schedule_work(&psy->changed_work); ++ ++ return; ++} ++ ++int power_supply_am_i_supplied(struct power_supply *psy) ++{ ++ union power_supply_propval ret = {0,}; ++ struct device *dev; ++ ++ down(&power_supply_class->sem); ++ list_for_each_entry(dev, &power_supply_class->devices, node) { ++ struct power_supply *epsy = dev_get_drvdata(dev); ++ int i; ++ ++ for (i = 0; i < epsy->num_supplicants; i++) { ++ if (!strcmp(epsy->supplied_to[i], psy->name)) { ++ if (epsy->get_property(epsy, ++ POWER_SUPPLY_PROP_ONLINE, &ret)) ++ continue; ++ if (ret.intval) ++ goto out; ++ } ++ } ++ } ++out: ++ up(&power_supply_class->sem); ++ ++ dev_dbg(psy->dev, "%s %d\n", __FUNCTION__, ret.intval); ++ ++ return ret.intval; ++} ++ ++int power_supply_register(struct device *parent, struct power_supply *psy) ++{ ++ int rc = 0; ++ ++ psy->dev = device_create(power_supply_class, parent, 0, ++ "%s", psy->name); ++ if (IS_ERR(psy->dev)) { ++ rc = PTR_ERR(psy->dev); ++ goto dev_create_failed; ++ } ++ ++ dev_set_drvdata(psy->dev, psy); ++ ++ INIT_WORK(&psy->changed_work, power_supply_changed_work); ++ ++ rc = power_supply_create_attrs(psy); ++ if (rc) ++ goto create_attrs_failed; ++ ++ rc = power_supply_create_triggers(psy); ++ if (rc) ++ goto create_triggers_failed; ++ ++ power_supply_changed(psy); ++ ++ goto success; ++ ++create_triggers_failed: ++ power_supply_remove_attrs(psy); ++create_attrs_failed: ++ device_unregister(psy->dev); ++dev_create_failed: ++success: ++ return rc; ++} ++ ++void power_supply_unregister(struct power_supply *psy) ++{ ++ flush_scheduled_work(); ++ power_supply_remove_triggers(psy); ++ power_supply_remove_attrs(psy); ++ device_unregister(psy->dev); ++ return; ++} ++ ++static int __init power_supply_class_init(void) ++{ ++ power_supply_class = class_create(THIS_MODULE, "power_supply"); ++ ++ if (IS_ERR(power_supply_class)) ++ return PTR_ERR(power_supply_class); ++ ++ power_supply_class->dev_uevent = power_supply_uevent; ++ ++ return 0; ++} ++ ++static void __exit power_supply_class_exit(void) ++{ ++ class_destroy(power_supply_class); ++ return; ++} ++ ++EXPORT_SYMBOL_GPL(power_supply_changed); ++EXPORT_SYMBOL_GPL(power_supply_am_i_supplied); ++EXPORT_SYMBOL_GPL(power_supply_register); ++EXPORT_SYMBOL_GPL(power_supply_unregister); ++ ++/* exported for the APM Power driver, APM emulation */ ++EXPORT_SYMBOL_GPL(power_supply_class); ++ ++subsys_initcall(power_supply_class_init); ++module_exit(power_supply_class_exit); ++ ++MODULE_DESCRIPTION("Universal power supply monitor class"); ++MODULE_AUTHOR("Ian Molton <spyro@f2s.com>, " ++ "Szabolcs Gyurko, " ++ "Anton Vorontsov <cbou@mail.ru>"); ++MODULE_LICENSE("GPL"); +Index: linux-2.6.22/drivers/power/power_supply.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.22/drivers/power/power_supply.h 2007-08-23 12:13:52.000000000 +0200 +@@ -0,0 +1,42 @@ ++/* ++ * Functions private to power supply class ++ * ++ * Copyright (c) 2007 Anton Vorontsov <cbou@mail.ru> ++ * Copyright (c) 2004 Szabolcs Gyurko ++ * Copyright (c) 2003 Ian Molton <spyro@f2s.com> ++ * ++ * Modified: 2004, Oct Szabolcs Gyurko ++ * ++ * You may use this code as per GPL version 2 ++ */ ++ ++#ifdef CONFIG_SYSFS ++ ++extern int power_supply_create_attrs(struct power_supply *psy); ++extern void power_supply_remove_attrs(struct power_supply *psy); ++extern int power_supply_uevent(struct device *dev, char **envp, int num_envp, ++ char *buffer, int buffer_size); ++ ++#else ++ ++static inline int power_supply_create_attrs(struct power_supply *psy) ++{ return 0; } ++static inline void power_supply_remove_attrs(struct power_supply *psy) {} ++#define power_supply_uevent NULL ++ ++#endif /* CONFIG_SYSFS */ ++ ++#ifdef CONFIG_LEDS_TRIGGERS ++ ++extern void power_supply_update_leds(struct power_supply *psy); ++extern int power_supply_create_triggers(struct power_supply *psy); ++extern void power_supply_remove_triggers(struct power_supply *psy); ++ ++#else ++ ++static inline void power_supply_update_leds(struct power_supply *psy) {} ++static inline int power_supply_create_triggers(struct power_supply *psy) ++{ return 0; } ++static inline void power_supply_remove_triggers(struct power_supply *psy) {} ++ ++#endif /* CONFIG_LEDS_TRIGGERS */ +Index: linux-2.6.22/drivers/power/power_supply_leds.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.22/drivers/power/power_supply_leds.c 2007-08-23 12:13:52.000000000 +0200 +@@ -0,0 +1,188 @@ ++/* ++ * LEDs triggers for power supply class ++ * ++ * Copyright (c) 2007 Anton Vorontsov <cbou@mail.ru> ++ * Copyright (c) 2004 Szabolcs Gyurko ++ * Copyright (c) 2003 Ian Molton <spyro@f2s.com> ++ * ++ * Modified: 2004, Oct Szabolcs Gyurko ++ * ++ * You may use this code as per GPL version 2 ++ */ ++ ++#include <linux/power_supply.h> ++ ++/* If we have hwtimer trigger, then use it to blink charging LED */ ++ ++#if defined(CONFIG_LEDS_TRIGGER_HWTIMER) || \ ++ (defined(CONFIG_BATTERY_MODULE) && \ ++ defined(CONFIG_LEDS_TRIGGER_HWTIMER_MODULE)) ++ #define led_trigger_register_charging led_trigger_register_hwtimer ++ #define led_trigger_unregister_charging led_trigger_unregister_hwtimer ++#else ++ #define led_trigger_register_charging led_trigger_register_simple ++ #define led_trigger_unregister_charging led_trigger_unregister_simple ++#endif ++ ++/* Battery specific LEDs triggers. */ ++ ++static void power_supply_update_bat_leds(struct power_supply *psy) ++{ ++ union power_supply_propval status; ++ ++ if (psy->get_property(psy, POWER_SUPPLY_PROP_STATUS, &status)) ++ return; ++ ++ dev_dbg(psy->dev, "%s %d\n", __FUNCTION__, status.intval); ++ ++ switch(status.intval) { ++ case POWER_SUPPLY_STATUS_FULL: ++ led_trigger_event(psy->charging_full_trig, LED_FULL); ++ led_trigger_event(psy->charging_trig, LED_OFF); ++ led_trigger_event(psy->full_trig, LED_FULL); ++ break; ++ case POWER_SUPPLY_STATUS_CHARGING: ++ led_trigger_event(psy->charging_full_trig, LED_FULL); ++ led_trigger_event(psy->charging_trig, LED_FULL); ++ led_trigger_event(psy->full_trig, LED_OFF); ++ break; ++ default: ++ led_trigger_event(psy->charging_full_trig, LED_OFF); ++ led_trigger_event(psy->charging_trig, LED_OFF); ++ led_trigger_event(psy->full_trig, LED_OFF); ++ break; ++ } ++ ++ return; ++} ++ ++static int power_supply_create_bat_triggers(struct power_supply *psy) ++{ ++ int rc = 0; ++ ++ psy->charging_full_trig_name = kmalloc(strlen(psy->name) + ++ sizeof("-charging-or-full"), GFP_KERNEL); ++ if (!psy->charging_full_trig_name) ++ goto charging_full_failed; ++ ++ psy->charging_trig_name = kmalloc(strlen(psy->name) + ++ sizeof("-charging"), GFP_KERNEL); ++ if (!psy->charging_trig_name) ++ goto charging_failed; ++ ++ psy->full_trig_name = kmalloc(strlen(psy->name) + ++ sizeof("-full"), GFP_KERNEL); ++ if (!psy->full_trig_name) ++ goto full_failed; ++ ++ strcpy(psy->charging_full_trig_name, psy->name); ++ strcat(psy->charging_full_trig_name, "-charging-or-full"); ++ strcpy(psy->charging_trig_name, psy->name); ++ strcat(psy->charging_trig_name, "-charging"); ++ strcpy(psy->full_trig_name, psy->name); ++ strcat(psy->full_trig_name, "-full"); ++ ++ led_trigger_register_simple(psy->charging_full_trig_name, ++ &psy->charging_full_trig); ++ led_trigger_register_charging(psy->charging_trig_name, ++ &psy->charging_trig); ++ led_trigger_register_simple(psy->full_trig_name, ++ &psy->full_trig); ++ ++ goto success; ++ ++full_failed: ++ kfree(psy->charging_trig_name); ++charging_failed: ++ kfree(psy->charging_full_trig_name); ++charging_full_failed: ++ rc = -ENOMEM; ++success: ++ return rc; ++} ++ ++static void power_supply_remove_bat_triggers(struct power_supply *psy) ++{ ++ led_trigger_unregister_simple(psy->charging_full_trig); ++ led_trigger_unregister_charging(psy->charging_trig); ++ led_trigger_unregister_simple(psy->full_trig); ++ kfree(psy->full_trig_name); ++ kfree(psy->charging_trig_name); ++ kfree(psy->charging_full_trig_name); ++ return; ++} ++ ++/* Generated power specific LEDs triggers. */ ++ ++static void power_supply_update_gen_leds(struct power_supply *psy) ++{ ++ union power_supply_propval online; ++ ++ if (psy->get_property(psy, POWER_SUPPLY_PROP_ONLINE, &online)) ++ return; ++ ++ dev_dbg(psy->dev, "%s %d\n", __FUNCTION__, online.intval); ++ ++ if (online.intval) ++ led_trigger_event(psy->online_trig, LED_FULL); ++ else ++ led_trigger_event(psy->online_trig, LED_OFF); ++ ++ return; ++} ++ ++static int power_supply_create_gen_triggers(struct power_supply *psy) ++{ ++ int rc = 0; ++ ++ psy->online_trig_name = kmalloc(strlen(psy->name) + sizeof("-online"), ++ GFP_KERNEL); ++ if (!psy->online_trig_name) ++ goto online_failed; ++ ++ strcpy(psy->online_trig_name, psy->name); ++ strcat(psy->online_trig_name, "-online"); ++ ++ led_trigger_register_simple(psy->online_trig_name, &psy->online_trig); ++ ++ goto success; ++ ++online_failed: ++ rc = -ENOMEM; ++success: ++ return rc; ++} ++ ++static void power_supply_remove_gen_triggers(struct power_supply *psy) ++{ ++ led_trigger_unregister_simple(psy->online_trig); ++ kfree(psy->online_trig_name); ++ return; ++} ++ ++/* Choice what triggers to create&update. */ ++ ++void power_supply_update_leds(struct power_supply *psy) ++{ ++ if (psy->type == POWER_SUPPLY_TYPE_BATTERY) ++ power_supply_update_bat_leds(psy); ++ else ++ power_supply_update_gen_leds(psy); ++ return; ++} ++ ++int power_supply_create_triggers(struct power_supply *psy) ++{ ++ if (psy->type == POWER_SUPPLY_TYPE_BATTERY) ++ return power_supply_create_bat_triggers(psy); ++ return power_supply_create_gen_triggers(psy); ++} ++ ++void power_supply_remove_triggers(struct power_supply *psy) ++{ ++ if (psy->type == POWER_SUPPLY_TYPE_BATTERY) ++ power_supply_remove_bat_triggers(psy); ++ else ++ power_supply_remove_gen_triggers(psy); ++ return; ++} +Index: linux-2.6.22/drivers/power/power_supply_sysfs.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.22/drivers/power/power_supply_sysfs.c 2007-08-23 12:13:52.000000000 +0200 +@@ -0,0 +1,289 @@ ++/* ++ * Sysfs interface for the universal power supply monitor class ++ * ++ * Copyright © 2007 David Woodhouse <dwmw2@infradead.org> ++ * Copyright (c) 2007 Anton Vorontsov <cbou@mail.ru> ++ * Copyright (c) 2004 Szabolcs Gyurko ++ * Copyright (c) 2003 Ian Molton <spyro@f2s.com> ++ * ++ * Modified: 2004, Oct Szabolcs Gyurko ++ * ++ * You may use this code as per GPL version 2 ++ */ ++ ++#include <linux/ctype.h> ++#include <linux/power_supply.h> ++ ++/* ++ * This is because the name "current" breaks the device attr macro. ++ * The "current" word resolvs to "(get_current())" so instead of ++ * "current" "(get_current())" appears in the sysfs. ++ * ++ * The source of this definition is the device.h which calls __ATTR ++ * macro in sysfs.h which calls the __stringify macro. ++ * ++ * Only modification that the name is not tried to be resolved ++ * (as a macro let's say). ++ */ ++ ++#define POWER_SUPPLY_ATTR(_name) \ ++{ \ ++ .attr = { .name = #_name, .mode = 0444, .owner = THIS_MODULE }, \ ++ .show = power_supply_show_property, \ ++ .store = NULL, \ ++} ++ ++static struct device_attribute power_supply_attrs[]; ++ ++static ssize_t power_supply_show_property(struct device *dev, ++ struct device_attribute *attr, ++ char *buf) { ++ static char *status_text[] = { ++ "Unknown", "Charging", "Discharging", "Not charging", "Full" ++ }; ++ static char *health_text[] = { ++ "Unknown", "Good", "Overheat", "Dead" ++ }; ++ static char *technology_text[] = { ++ "Unknown", "NiMH", "Li-ion", "Li-poly" ++ }; ++ static char *capacity_level_text[] = { ++ "Unknown", "Critical", "Low", "Normal", "High", "Full" ++ }; ++ ssize_t ret; ++ struct power_supply *psy = dev_get_drvdata(dev); ++ const ptrdiff_t off = attr - power_supply_attrs; ++ union power_supply_propval value; ++ ++ ret = psy->get_property(psy, off, &value); ++ ++ if (ret < 0) { ++ dev_err(dev, "driver failed to report `%s' property\n", ++ attr->attr.name); ++ return ret; ++ } ++ ++ if (off == POWER_SUPPLY_PROP_STATUS) ++ return sprintf(buf, "%s\n", status_text[value.intval]); ++ else if (off == POWER_SUPPLY_PROP_HEALTH) ++ return sprintf(buf, "%s\n", health_text[value.intval]); ++ else if (off == POWER_SUPPLY_PROP_TECHNOLOGY) ++ return sprintf(buf, "%s\n", technology_text[value.intval]); ++ else if (off == POWER_SUPPLY_PROP_CAPACITY_LEVEL) ++ return sprintf(buf, "%s\n", ++ capacity_level_text[value.intval]); ++ else if (off == POWER_SUPPLY_PROP_MODEL_NAME) ++ return sprintf(buf, "%s\n", value.strval); ++ ++ return sprintf(buf, "%d\n", value.intval); ++} ++ ++/* Must be in the same order as POWER_SUPPLY_PROP_* */ ++static struct device_attribute power_supply_attrs[] = { ++ /* Properties of type `int' */ ++ POWER_SUPPLY_ATTR(status), ++ POWER_SUPPLY_ATTR(health), ++ POWER_SUPPLY_ATTR(present), ++ POWER_SUPPLY_ATTR(online), ++ POWER_SUPPLY_ATTR(technology), ++ POWER_SUPPLY_ATTR(voltage_max_design), ++ POWER_SUPPLY_ATTR(voltage_min_design), ++ POWER_SUPPLY_ATTR(voltage_now), ++ POWER_SUPPLY_ATTR(voltage_avg), ++ POWER_SUPPLY_ATTR(current_now), ++ POWER_SUPPLY_ATTR(current_avg), ++ POWER_SUPPLY_ATTR(charge_full_design), ++ POWER_SUPPLY_ATTR(charge_empty_design), ++ POWER_SUPPLY_ATTR(charge_full), ++ POWER_SUPPLY_ATTR(charge_empty), ++ POWER_SUPPLY_ATTR(charge_now), ++ POWER_SUPPLY_ATTR(charge_avg), ++ POWER_SUPPLY_ATTR(energy_full_design), ++ POWER_SUPPLY_ATTR(energy_empty_design), ++ POWER_SUPPLY_ATTR(energy_full), ++ POWER_SUPPLY_ATTR(energy_empty), ++ POWER_SUPPLY_ATTR(energy_now), ++ POWER_SUPPLY_ATTR(energy_avg), ++ POWER_SUPPLY_ATTR(capacity), ++ POWER_SUPPLY_ATTR(capacity_level), ++ POWER_SUPPLY_ATTR(temp), ++ POWER_SUPPLY_ATTR(temp_ambient), ++ POWER_SUPPLY_ATTR(time_to_empty_now), ++ POWER_SUPPLY_ATTR(time_to_empty_avg), ++ POWER_SUPPLY_ATTR(time_to_full_now), ++ POWER_SUPPLY_ATTR(time_to_full_avg), ++ /* Properties of type `const char *' */ ++ POWER_SUPPLY_ATTR(model_name), ++}; ++ ++static ssize_t power_supply_show_static_attrs(struct device *dev, ++ struct device_attribute *attr, ++ char *buf) { ++ static char *type_text[] = { "Battery", "UPS", "Mains", "USB" }; ++ struct power_supply *psy = dev_get_drvdata(dev); ++ ++ return sprintf(buf, "%s\n", type_text[psy->type]); ++} ++ ++static struct device_attribute power_supply_static_attrs[] = { ++ __ATTR(type, 0444, power_supply_show_static_attrs, NULL), ++}; ++ ++int power_supply_create_attrs(struct power_supply *psy) ++{ ++ int rc = 0; ++ int i, j; ++ ++ for (i = 0; i < ARRAY_SIZE(power_supply_static_attrs); i++) { ++ rc = device_create_file(psy->dev, ++ &power_supply_static_attrs[i]); ++ if (rc) ++ goto statics_failed; ++ } ++ ++ for (j = 0; j < psy->num_properties; j++) { ++ rc = device_create_file(psy->dev, ++ &power_supply_attrs[psy->properties[j]]); ++ if (rc) ++ goto dynamics_failed; ++ } ++ ++ goto succeed; ++ ++dynamics_failed: ++ while (j--) ++ device_remove_file(psy->dev, ++ &power_supply_attrs[psy->properties[j]]); ++statics_failed: ++ while (i--) ++ device_remove_file(psy->dev, ++ &power_supply_static_attrs[psy->properties[i]]); ++succeed: ++ return rc; ++} ++ ++void power_supply_remove_attrs(struct power_supply *psy) ++{ ++ int i; ++ ++ for (i = 0; i < ARRAY_SIZE(power_supply_static_attrs); i++) ++ device_remove_file(psy->dev, ++ &power_supply_static_attrs[i]); ++ ++ for (i = 0; i < psy->num_properties; i++) ++ device_remove_file(psy->dev, ++ &power_supply_attrs[psy->properties[i]]); ++ ++ return; ++} ++ ++static char *kstruprdup(const char *str, gfp_t gfp) ++{ ++ char *ret, *ustr; ++ ++ ustr = ret = kmalloc(strlen(str) + 1, gfp); ++ ++ if (!ret) ++ return NULL; ++ ++ while (*str) ++ *ustr++ = toupper(*str++); ++ ++ *ustr = 0; ++ ++ return ret; ++} ++ ++int power_supply_uevent(struct device *dev, char **envp, int num_envp, ++ char *buffer, int buffer_size) ++{ ++ struct power_supply *psy = dev_get_drvdata(dev); ++ int i = 0, length = 0, ret = 0, j; ++ char *prop_buf; ++ char *attrname; ++ ++ dev_dbg(dev, "uevent\n"); ++ ++ if (!psy) { ++ dev_dbg(dev, "No power supply yet\n"); ++ return ret; ++ } ++ ++ dev_dbg(dev, "POWER_SUPPLY_NAME=%s\n", psy->name); ++ ++ ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, ++ &length, "POWER_SUPPLY_NAME=%s", psy->name); ++ if (ret) ++ return ret; ++ ++ prop_buf = (char *)get_zeroed_page(GFP_KERNEL); ++ if (!prop_buf) ++ return -ENOMEM; ++ ++ for (j = 0; j < ARRAY_SIZE(power_supply_static_attrs); j++) { ++ struct device_attribute *attr; ++ char *line; ++ ++ attr = &power_supply_static_attrs[j]; ++ ++ ret = power_supply_show_static_attrs(dev, attr, prop_buf); ++ if (ret < 0) ++ goto out; ++ ++ line = strchr(prop_buf, '\n'); ++ if (line) ++ *line = 0; ++ ++ attrname = kstruprdup(attr->attr.name, GFP_KERNEL); ++ if (!attrname) { ++ ret = -ENOMEM; ++ goto out; ++ } ++ ++ dev_dbg(dev, "Static prop %s=%s\n", attrname, prop_buf); ++ ++ ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, ++ &length, "POWER_SUPPLY_%s=%s", ++ attrname, prop_buf); ++ kfree(attrname); ++ if (ret) ++ goto out; ++ } ++ ++ dev_dbg(dev, "%zd dynamic props\n", psy->num_properties); ++ ++ for (j = 0; j < psy->num_properties; j++) { ++ struct device_attribute *attr; ++ char *line; ++ ++ attr = &power_supply_attrs[psy->properties[j]]; ++ ++ ret = power_supply_show_property(dev, attr, prop_buf); ++ if (ret < 0) ++ goto out; ++ ++ line = strchr(prop_buf, '\n'); ++ if (line) ++ *line = 0; ++ ++ attrname = kstruprdup(attr->attr.name, GFP_KERNEL); ++ if (!attrname) { ++ ret = -ENOMEM; ++ goto out; ++ } ++ ++ dev_dbg(dev, "prop %s=%s\n", attrname, prop_buf); ++ ++ ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, ++ &length, "POWER_SUPPLY_%s=%s", ++ attrname, prop_buf); ++ kfree(attrname); ++ if (ret) ++ goto out; ++ } ++ ++out: ++ free_page((unsigned long)prop_buf); ++ ++ return ret; ++} +Index: linux-2.6.22/drivers/power/simpad-battery.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.22/drivers/power/simpad-battery.c 2007-08-23 12:13:52.000000000 +0200 +@@ -0,0 +1,242 @@ ++/* ++ * linux/drivers/misc/simpad-battery.c ++ * ++ * Copyright (C) 2005 Holger Hans Peter Freyther ++ * Copyright (C) 2001 Juergen Messerer ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License as published by ++ * the Free Software Foundation; either version 2 of the License. ++ * ++ * Read the Battery Level through the UCB1x00 chip. T-Sinuspad is ++ * unsupported for now. ++ * ++ */ ++ ++#include <linux/battery.h> ++#include <asm/dma.h> ++#include "ucb1x00.h" ++ ++ ++/* ++ * Conversion from AD -> mV ++ * 7.5V = 1023 7.3313mV/Digit ++ * ++ * 400 Units == 9.7V ++ * a = ADC value ++ * 21 = ADC error ++ * 12600 = Divident to get 2*7.3242 ++ * 860 = Divider to get 2*7.3242 ++ * 170 = Voltagedrop over ++ */ ++#define CALIBRATE_BATTERY(a) ((((a + 21)*12600)/860) + 170) ++ ++/* ++ * We have two types of batteries a small and a large one ++ * To get the right value we to distinguish between those two ++ * 450 Units == 15 V ++ */ ++#define CALIBRATE_SUPPLY(a) (((a) * 1500) / 45) ++#define MIN_SUPPLY 12000 /* Less then 12V means no powersupply */ ++ ++/* ++ * Charging Current ++ * if value is >= 50 then charging is on ++ */ ++#define CALIBRATE_CHARGING(a) (((a)* 1000)/(152/4))) ++ ++struct simpad_battery_t { ++ struct battery battery; ++ struct ucb1x00* ucb; ++ ++ /* ++ * Variables for the values to one time support ++ * T-Sinuspad as well ++ */ ++ int min_voltage; ++ int min_current; ++ int min_charge; ++ ++ int max_voltage; ++ int max_current; ++ int max_charge; ++ ++ int min_supply; ++ int charging_led_label; ++ int charging_max_label; ++ int batt_full; ++ int batt_low; ++ int batt_critical; ++ int batt_empty; ++}; ++ ++static int simpad_get_min_voltage(struct battery* _battery ) ++{ ++ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; ++ return battery->min_voltage; ++} ++ ++static int simpad_get_min_current(struct battery* _battery) ++{ ++ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; ++ return battery->min_current; ++} ++ ++static int simpad_get_min_charge(struct battery* _battery) ++{ ++ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; ++ return battery->min_charge; ++} ++ ++static int simpad_get_max_voltage(struct battery* _battery) ++{ ++ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; ++ return battery->max_voltage; ++} ++ ++static int simpad_get_max_current(struct battery* _battery) ++{ ++ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; ++ return battery->max_current; ++} ++ ++static int simpad_get_max_charge(struct battery* _battery) ++{ ++ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; ++ return battery->max_charge; ++} ++ ++static int simpad_get_temp(struct battery* _battery) ++{ ++ return 0; ++} ++ ++static int simpad_get_voltage(struct battery* _battery) ++{ ++ int val; ++ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; ++ ++ ++ ucb1x00_adc_enable(battery->ucb); ++ val = ucb1x00_adc_read(battery->ucb, UCB_ADC_INP_AD1, UCB_NOSYNC); ++ ucb1x00_adc_disable(battery->ucb); ++ ++ return CALIBRATE_BATTERY(val); ++} ++ ++static int simpad_get_current(struct battery* _battery) ++{ ++ int val; ++ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; ++ ++ ucb1x00_adc_enable(battery->ucb); ++ val = ucb1x00_adc_read(battery->ucb, UCB_ADC_INP_AD3, UCB_NOSYNC); ++ ucb1x00_adc_disable(battery->ucb); ++ ++ return val; ++} ++ ++static int simpad_get_charge(struct battery* _battery) ++{ ++ int val; ++ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; ++ ++ ucb1x00_adc_enable(battery->ucb); ++ val = ucb1x00_adc_read(battery->ucb, UCB_ADC_INP_AD2, UCB_NOSYNC); ++ ucb1x00_adc_disable(battery->ucb); ++ ++ return CALIBRATE_SUPPLY(val); ++ ++} ++ ++static int simpad_get_status(struct battery* _battery) ++{ ++ struct simpad_battery_t* battery = (struct simpad_battery_t*)(_battery); ++ int vcharger = simpad_get_voltage(_battery); ++ int icharger = simpad_get_current(_battery); ++ ++ int status = BATTERY_STATUS_UNKNOWN; ++ if(icharger > battery->charging_led_label) ++ status = BATTERY_STATUS_CHARGING; ++ else if(vcharger > battery->min_supply) ++ status = BATTERY_STATUS_NOT_CHARGING; ++ else ++ status = BATTERY_STATUS_DISCHARGING; ++ ++ return status; ++} ++ ++static struct simpad_battery_t simpad_battery = { ++ .battery = { ++ .get_min_voltage = simpad_get_min_voltage, ++ .get_min_current = simpad_get_min_current, ++ .get_min_charge = simpad_get_min_charge, ++ .get_max_voltage = simpad_get_max_voltage, ++ .get_max_current = simpad_get_max_current, ++ .get_max_charge = simpad_get_max_charge, ++ .get_temp = simpad_get_temp, ++ .get_voltage = simpad_get_voltage, ++ .get_current = simpad_get_current, ++ .get_charge = simpad_get_charge, ++ .get_status = simpad_get_status, ++ }, ++ .min_voltage = 0, ++ .min_current = 0, ++ .min_charge = 0, ++ .max_voltage = 0, ++ .max_current = 0, ++ .max_charge = 0, ++ ++ .min_supply = 1200, ++ .charging_led_label = 18, ++ .charging_max_label = 265, ++ .batt_full = 8300, ++ .batt_low = 7300, ++ .batt_critical = 6800, ++ .batt_empty = 6500, ++}; ++ ++ ++ ++/* ++ * UCB glue code ++ */ ++static int ucb1x00_battery_add(struct class_device *dev) ++{ ++ struct ucb1x00 *ucb = classdev_to_ucb1x00(dev); ++ simpad_battery.ucb = ucb; ++ ++ battery_class_register(&simpad_battery.battery); ++ ++ return 0; ++} ++ ++static void ucb1x00_battery_remove(struct class_device *dev) ++{ ++ return battery_class_unregister(&simpad_battery.battery); ++} ++ ++ ++static struct ucb1x00_class_interface ucb1x00_battery_interface = { ++ .interface = { ++ .add = ucb1x00_battery_add, ++ .remove = ucb1x00_battery_remove, ++ }, ++}; ++ ++ ++static int __init battery_register(void) ++{ ++ return ucb1x00_register_interface(&ucb1x00_battery_interface); ++} ++ ++static void __exit battery_unregister(void) ++{ ++ ucb1x00_unregister_interface(&ucb1x00_battery_interface); ++} ++ ++module_init(battery_register); ++module_exit(battery_unregister); ++ ++MODULE_AUTHOR("Holger Hans Peter Freyther"); ++MODULE_LICENSE("GPL"); +Index: linux-2.6.22/arch/arm/Kconfig +=================================================================== +--- linux-2.6.22.orig/arch/arm/Kconfig 2007-08-23 12:17:42.000000000 +0200 ++++ linux-2.6.22/arch/arm/Kconfig 2007-08-23 12:22:28.000000000 +0200 +@@ -1016,6 +1016,8 @@ + + source "drivers/w1/Kconfig" + ++source "drivers/power/Kconfig" ++ + source "drivers/hwmon/Kconfig" + + #source "drivers/l3/Kconfig" +Index: linux-2.6.22/drivers/Kconfig +=================================================================== +--- linux-2.6.22.orig/drivers/Kconfig 2007-08-23 12:21:27.000000000 +0200 ++++ linux-2.6.22/drivers/Kconfig 2007-08-23 12:22:03.000000000 +0200 +@@ -54,6 +54,8 @@ + + source "drivers/w1/Kconfig" + ++source "drivers/power/Kconfig" ++ + source "drivers/hwmon/Kconfig" + + source "drivers/mfd/Kconfig" +Index: linux-2.6.22/drivers/Makefile +=================================================================== +--- linux-2.6.22.orig/drivers/Makefile 2007-08-23 12:33:58.000000000 +0200 ++++ linux-2.6.22/drivers/Makefile 2007-08-23 12:34:34.000000000 +0200 +@@ -61,6 +61,7 @@ + obj-$(CONFIG_RTC_LIB) += rtc/ + obj-y += i2c/ + obj-$(CONFIG_W1) += w1/ ++obj-$(CONFIG_POWER_SUPPLY) += power/ + obj-$(CONFIG_HWMON) += hwmon/ + obj-$(CONFIG_PHONE) += telephony/ + obj-$(CONFIG_MD) += md/ +Index: linux-2.6.22/include/linux/power_supply.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.22/include/linux/power_supply.h 2007-08-23 12:37:10.000000000 +0200 +@@ -0,0 +1,175 @@ ++/* ++ * Universal power supply monitor class ++ * ++ * Copyright (c) 2007 Anton Vorontsov <cbou@mail.ru> ++ * Copyright (c) 2004 Szabolcs Gyurko ++ * Copyright (c) 2003 Ian Molton <spyro@f2s.com> ++ * ++ * Modified: 2004, Oct Szabolcs Gyurko ++ * ++ * You may use this code as per GPL version 2 ++ */ ++ ++#ifndef __LINUX_POWER_SUPPLY_H__ ++#define __LINUX_POWER_SUPPLY_H__ ++ ++#include <linux/device.h> ++#include <linux/workqueue.h> ++#include <linux/leds.h> ++ ++/* ++ * All voltages, currents, charges, energies, time and temperatures in uV, ++ * uA, uAh, uWh, seconds and tenths of degree Celsius unless otherwise ++ * stated. It's driver's job to convert its raw values to units in which ++ * this class operates. ++ */ ++ ++/* ++ * For systems where the charger determines the maximum battery capacity ++ * the min and max fields should be used to present these values to user ++ * space. Unused/unknown fields will not appear in sysfs. ++ */ ++ ++enum { ++ POWER_SUPPLY_STATUS_UNKNOWN = 0, ++ POWER_SUPPLY_STATUS_CHARGING, ++ POWER_SUPPLY_STATUS_DISCHARGING, ++ POWER_SUPPLY_STATUS_NOT_CHARGING, ++ POWER_SUPPLY_STATUS_FULL, ++}; ++ ++enum { ++ POWER_SUPPLY_HEALTH_UNKNOWN = 0, ++ POWER_SUPPLY_HEALTH_GOOD, ++ POWER_SUPPLY_HEALTH_OVERHEAT, ++ POWER_SUPPLY_HEALTH_DEAD, ++}; ++ ++enum { ++ POWER_SUPPLY_TECHNOLOGY_UNKNOWN = 0, ++ POWER_SUPPLY_TECHNOLOGY_NIMH, ++ POWER_SUPPLY_TECHNOLOGY_LION, ++ POWER_SUPPLY_TECHNOLOGY_LIPO, ++}; ++ ++enum { ++ POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN = 0, ++ POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL, ++ POWER_SUPPLY_CAPACITY_LEVEL_LOW, ++ POWER_SUPPLY_CAPACITY_LEVEL_NORMAL, ++ POWER_SUPPLY_CAPACITY_LEVEL_HIGH, ++ POWER_SUPPLY_CAPACITY_LEVEL_FULL, ++}; ++ ++enum power_supply_property { ++ /* Properties of type `int' */ ++ POWER_SUPPLY_PROP_STATUS = 0, ++ POWER_SUPPLY_PROP_HEALTH, ++ POWER_SUPPLY_PROP_PRESENT, ++ POWER_SUPPLY_PROP_ONLINE, ++ POWER_SUPPLY_PROP_TECHNOLOGY, ++ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, ++ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, ++ POWER_SUPPLY_PROP_VOLTAGE_NOW, ++ POWER_SUPPLY_PROP_VOLTAGE_AVG, ++ POWER_SUPPLY_PROP_CURRENT_NOW, ++ POWER_SUPPLY_PROP_CURRENT_AVG, ++ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, ++ POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN, ++ POWER_SUPPLY_PROP_CHARGE_FULL, ++ POWER_SUPPLY_PROP_CHARGE_EMPTY, ++ POWER_SUPPLY_PROP_CHARGE_NOW, ++ POWER_SUPPLY_PROP_CHARGE_AVG, ++ POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, ++ POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN, ++ POWER_SUPPLY_PROP_ENERGY_FULL, ++ POWER_SUPPLY_PROP_ENERGY_EMPTY, ++ POWER_SUPPLY_PROP_ENERGY_NOW, ++ POWER_SUPPLY_PROP_ENERGY_AVG, ++ POWER_SUPPLY_PROP_CAPACITY, /* in percents! */ ++ POWER_SUPPLY_PROP_CAPACITY_LEVEL, ++ POWER_SUPPLY_PROP_TEMP, ++ POWER_SUPPLY_PROP_TEMP_AMBIENT, ++ POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, ++ POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, ++ POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, ++ POWER_SUPPLY_PROP_TIME_TO_FULL_AVG, ++ /* Properties of type `const char *' */ ++ POWER_SUPPLY_PROP_MODEL_NAME, ++}; ++ ++enum power_supply_type { ++ POWER_SUPPLY_TYPE_BATTERY = 0, ++ POWER_SUPPLY_TYPE_UPS, ++ POWER_SUPPLY_TYPE_MAINS, ++ POWER_SUPPLY_TYPE_USB, ++}; ++ ++union power_supply_propval { ++ int intval; ++ const char *strval; ++}; ++ ++struct power_supply { ++ const char *name; ++ enum power_supply_type type; ++ enum power_supply_property *properties; ++ size_t num_properties; ++ ++ char **supplied_to; ++ size_t num_supplicants; ++ ++ int (*get_property)(struct power_supply *psy, ++ enum power_supply_property psp, ++ union power_supply_propval *val); ++ void (*external_power_changed)(struct power_supply *psy); ++ ++ /* For APM emulation, think legacy userspace. */ ++ int use_for_apm; ++ ++ /* private */ ++ struct device *dev; ++ struct work_struct changed_work; ++ ++#ifdef CONFIG_LEDS_TRIGGERS ++ struct led_trigger *charging_full_trig; ++ char *charging_full_trig_name; ++ struct led_trigger *charging_trig; ++ char *charging_trig_name; ++ struct led_trigger *full_trig; ++ char *full_trig_name; ++ struct led_trigger *online_trig; ++ char *online_trig_name; ++#endif ++}; ++ ++/* ++ * This is recommended structure to specify static power supply parameters. ++ * Generic one, parametrizable for different power supplies. Power supply ++ * class itself does not use it, but that's what implementing most platform ++ * drivers, should try reuse for consistency. ++ */ ++ ++struct power_supply_info { ++ const char *name; ++ int technology; ++ int voltage_max_design; ++ int voltage_min_design; ++ int charge_full_design; ++ int charge_empty_design; ++ int energy_full_design; ++ int energy_empty_design; ++ int use_for_apm; ++}; ++ ++extern void power_supply_changed(struct power_supply *psy); ++extern int power_supply_am_i_supplied(struct power_supply *psy); ++ ++extern int power_supply_register(struct device *parent, ++ struct power_supply *psy); ++extern void power_supply_unregister(struct power_supply *psy); ++ ++/* For APM emulation, think legacy userspace. */ ++extern struct class *power_supply_class; ++ ++#endif /* __LINUX_POWER_SUPPLY_H__ */ |