146 lines
3.5 KiB
C
146 lines
3.5 KiB
C
/* arch/arm/mach-msm/fish_battery.c
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*
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* Copyright (C) 2008 Google, Inc.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* based on: arch/arm/mach-msm/htc_battery.c
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/err.h>
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#include <linux/power_supply.h>
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#include <linux/platform_device.h>
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static enum power_supply_property fish_battery_properties[] = {
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POWER_SUPPLY_PROP_STATUS,
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POWER_SUPPLY_PROP_HEALTH,
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POWER_SUPPLY_PROP_PRESENT,
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POWER_SUPPLY_PROP_TECHNOLOGY,
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POWER_SUPPLY_PROP_CAPACITY,
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};
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static enum power_supply_property fish_power_properties[] = {
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POWER_SUPPLY_PROP_ONLINE,
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};
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static char *supply_list[] = {
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"battery",
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};
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static int fish_power_get_property(struct power_supply *psy,
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enum power_supply_property psp,
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union power_supply_propval *val);
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static int fish_battery_get_property(struct power_supply *psy,
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enum power_supply_property psp,
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union power_supply_propval *val);
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static struct power_supply fish_power_supplies[] = {
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{
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.name = "battery",
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.type = POWER_SUPPLY_TYPE_BATTERY,
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.properties = fish_battery_properties,
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.num_properties = ARRAY_SIZE(fish_battery_properties),
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.get_property = fish_battery_get_property,
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},
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{
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.name = "ac",
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.type = POWER_SUPPLY_TYPE_MAINS,
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.supplied_to = supply_list,
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.num_supplicants = ARRAY_SIZE(supply_list),
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.properties = fish_power_properties,
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.num_properties = ARRAY_SIZE(fish_power_properties),
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.get_property = fish_power_get_property,
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},
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};
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static int fish_power_get_property(struct power_supply *psy,
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enum power_supply_property psp,
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union power_supply_propval *val)
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{
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switch (psp) {
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case POWER_SUPPLY_PROP_ONLINE:
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if (psy->type == POWER_SUPPLY_TYPE_MAINS)
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val->intval = 1;
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else
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val->intval = 0;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int fish_battery_get_property(struct power_supply *psy,
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enum power_supply_property psp,
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union power_supply_propval *val)
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{
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switch (psp) {
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case POWER_SUPPLY_PROP_STATUS:
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val->intval = POWER_SUPPLY_STATUS_FULL;
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break;
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case POWER_SUPPLY_PROP_HEALTH:
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val->intval = POWER_SUPPLY_HEALTH_GOOD;
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break;
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case POWER_SUPPLY_PROP_PRESENT:
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val->intval = 1;
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break;
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case POWER_SUPPLY_PROP_TECHNOLOGY:
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val->intval = POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
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break;
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case POWER_SUPPLY_PROP_CAPACITY:
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val->intval = 100;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int fish_battery_probe(struct platform_device *pdev)
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{
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int i;
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int rc;
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/* init power supplier framework */
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for (i = 0; i < ARRAY_SIZE(fish_power_supplies); i++) {
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rc = power_supply_register(&pdev->dev, &fish_power_supplies[i]);
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if (rc)
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pr_err("%s: Failed to register power supply (%d)\n",
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__func__, rc);
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}
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return 0;
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}
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static struct platform_driver fish_battery_driver = {
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.probe = fish_battery_probe,
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.driver = {
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.name = "fish_battery",
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.owner = THIS_MODULE,
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},
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};
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static int __init fish_battery_init(void)
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{
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platform_driver_register(&fish_battery_driver);
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return 0;
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}
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module_init(fish_battery_init);
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MODULE_DESCRIPTION("Qualcomm fish battery driver");
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MODULE_LICENSE("GPL");
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