diff options
Diffstat (limited to 'drivers/power/test_power.c')
| -rw-r--r-- | drivers/power/test_power.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/drivers/power/test_power.c b/drivers/power/test_power.c new file mode 100644 index 000000000000..0cd9f67d33e5 --- /dev/null +++ b/drivers/power/test_power.c @@ -0,0 +1,163 @@ +/* + * Power supply driver for testing. + * + * Copyright 2010 Anton Vorontsov <cbouatmailru@gmail.com> + * + * 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/kernel.h> +#include <linux/module.h> +#include <linux/power_supply.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include <linux/vermagic.h> + +static int test_power_ac_online = 1; +static int test_power_battery_status = POWER_SUPPLY_STATUS_CHARGING; + +static int test_power_get_ac_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + val->intval = test_power_ac_online; + break; + default: + return -EINVAL; + } + return 0; +} + +static int test_power_get_battery_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + switch (psp) { + case POWER_SUPPLY_PROP_MODEL_NAME: + val->strval = "Test battery"; + break; + case POWER_SUPPLY_PROP_MANUFACTURER: + val->strval = "Linux"; + break; + case POWER_SUPPLY_PROP_SERIAL_NUMBER: + val->strval = UTS_RELEASE; + break; + case POWER_SUPPLY_PROP_STATUS: + val->intval = test_power_battery_status; + break; + case POWER_SUPPLY_PROP_CHARGE_TYPE: + val->intval = POWER_SUPPLY_CHARGE_TYPE_FAST; + break; + case POWER_SUPPLY_PROP_HEALTH: + val->intval = POWER_SUPPLY_HEALTH_GOOD; + break; + case POWER_SUPPLY_PROP_TECHNOLOGY: + val->intval = POWER_SUPPLY_TECHNOLOGY_LION; + break; + case POWER_SUPPLY_PROP_CAPACITY_LEVEL: + val->intval = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; + break; + case POWER_SUPPLY_PROP_CAPACITY: + val->intval = 50; + break; + case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: + case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW: + val->intval = 3600; + break; + default: + pr_info("%s: some properties deliberately report errors.\n", + __func__); + return -EINVAL; + } + return 0; +} + +static enum power_supply_property test_power_ac_props[] = { + POWER_SUPPLY_PROP_ONLINE, +}; + +static enum power_supply_property test_power_battery_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_CHARGE_TYPE, + POWER_SUPPLY_PROP_HEALTH, + POWER_SUPPLY_PROP_TECHNOLOGY, + POWER_SUPPLY_PROP_CHARGE_FULL, + POWER_SUPPLY_PROP_CHARGE_EMPTY, + POWER_SUPPLY_PROP_CAPACITY, + POWER_SUPPLY_PROP_CAPACITY_LEVEL, + POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, + POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, + POWER_SUPPLY_PROP_MODEL_NAME, + POWER_SUPPLY_PROP_MANUFACTURER, + POWER_SUPPLY_PROP_SERIAL_NUMBER, +}; + +static char *test_power_ac_supplied_to[] = { + "test_battery", +}; + +static struct power_supply test_power_supplies[] = { + { + .name = "test_ac", + .type = POWER_SUPPLY_TYPE_MAINS, + .supplied_to = test_power_ac_supplied_to, + .num_supplicants = ARRAY_SIZE(test_power_ac_supplied_to), + .properties = test_power_ac_props, + .num_properties = ARRAY_SIZE(test_power_ac_props), + .get_property = test_power_get_ac_property, + }, { + .name = "test_battery", + .type = POWER_SUPPLY_TYPE_BATTERY, + .properties = test_power_battery_props, + .num_properties = ARRAY_SIZE(test_power_battery_props), + .get_property = test_power_get_battery_property, + }, +}; + +static int __init test_power_init(void) +{ + int i; + int ret; + + for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++) { + ret = power_supply_register(NULL, &test_power_supplies[i]); + if (ret) { + pr_err("%s: failed to register %s\n", __func__, + test_power_supplies[i].name); + goto failed; + } + } + + return 0; +failed: + while (--i >= 0) + power_supply_unregister(&test_power_supplies[i]); + return ret; +} +module_init(test_power_init); + +static void __exit test_power_exit(void) +{ + int i; + + /* Let's see how we handle changes... */ + test_power_ac_online = 0; + test_power_battery_status = POWER_SUPPLY_STATUS_DISCHARGING; + for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++) + power_supply_changed(&test_power_supplies[i]); + pr_info("%s: 'changed' event sent, sleeping for 10 seconds...\n", + __func__); + ssleep(10); + + for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++) + power_supply_unregister(&test_power_supplies[i]); +} +module_exit(test_power_exit); + +MODULE_DESCRIPTION("Power supply driver for testing"); +MODULE_AUTHOR("Anton Vorontsov <cbouatmailru@gmail.com>"); +MODULE_LICENSE("GPL"); |