M7350/kernel/arch/arm/mach-msm/fish_battery.c
2024-09-09 08:52:07 +00:00

146 lines
3.5 KiB
C

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