2 * Power supply driver for testing.
4 * Copyright 2010 Anton Vorontsov <cbouatmailru@gmail.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
11 #include <linux/kernel.h>
12 #include <linux/module.h>
13 #include <linux/power_supply.h>
14 #include <linux/errno.h>
15 #include <linux/delay.h>
16 #include <linux/vermagic.h>
18 static int test_power_ac_online = 1;
19 static int test_power_battery_status = POWER_SUPPLY_STATUS_CHARGING;
21 static int test_power_get_ac_property(struct power_supply *psy,
22 enum power_supply_property psp,
23 union power_supply_propval *val)
26 case POWER_SUPPLY_PROP_ONLINE:
27 val->intval = test_power_ac_online;
35 static int test_power_get_battery_property(struct power_supply *psy,
36 enum power_supply_property psp,
37 union power_supply_propval *val)
40 case POWER_SUPPLY_PROP_MODEL_NAME:
41 val->strval = "Test battery";
43 case POWER_SUPPLY_PROP_MANUFACTURER:
44 val->strval = "Linux";
46 case POWER_SUPPLY_PROP_SERIAL_NUMBER:
47 val->strval = UTS_RELEASE;
49 case POWER_SUPPLY_PROP_STATUS:
50 val->intval = test_power_battery_status;
52 case POWER_SUPPLY_PROP_CHARGE_TYPE:
53 val->intval = POWER_SUPPLY_CHARGE_TYPE_FAST;
55 case POWER_SUPPLY_PROP_HEALTH:
56 val->intval = POWER_SUPPLY_HEALTH_GOOD;
58 case POWER_SUPPLY_PROP_TECHNOLOGY:
59 val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
61 case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
62 val->intval = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
64 case POWER_SUPPLY_PROP_CAPACITY:
67 case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
68 case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
72 pr_info("%s: some properties deliberately report errors.\n",
79 static enum power_supply_property test_power_ac_props[] = {
80 POWER_SUPPLY_PROP_ONLINE,
83 static enum power_supply_property test_power_battery_props[] = {
84 POWER_SUPPLY_PROP_STATUS,
85 POWER_SUPPLY_PROP_CHARGE_TYPE,
86 POWER_SUPPLY_PROP_HEALTH,
87 POWER_SUPPLY_PROP_TECHNOLOGY,
88 POWER_SUPPLY_PROP_CHARGE_FULL,
89 POWER_SUPPLY_PROP_CHARGE_EMPTY,
90 POWER_SUPPLY_PROP_CAPACITY,
91 POWER_SUPPLY_PROP_CAPACITY_LEVEL,
92 POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
93 POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
94 POWER_SUPPLY_PROP_MODEL_NAME,
95 POWER_SUPPLY_PROP_MANUFACTURER,
96 POWER_SUPPLY_PROP_SERIAL_NUMBER,
99 static char *test_power_ac_supplied_to[] = {
103 static struct power_supply test_power_supplies[] = {
106 .type = POWER_SUPPLY_TYPE_MAINS,
107 .supplied_to = test_power_ac_supplied_to,
108 .num_supplicants = ARRAY_SIZE(test_power_ac_supplied_to),
109 .properties = test_power_ac_props,
110 .num_properties = ARRAY_SIZE(test_power_ac_props),
111 .get_property = test_power_get_ac_property,
113 .name = "test_battery",
114 .type = POWER_SUPPLY_TYPE_BATTERY,
115 .properties = test_power_battery_props,
116 .num_properties = ARRAY_SIZE(test_power_battery_props),
117 .get_property = test_power_get_battery_property,
121 static int __init test_power_init(void)
126 for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++) {
127 ret = power_supply_register(NULL, &test_power_supplies[i]);
129 pr_err("%s: failed to register %s\n", __func__,
130 test_power_supplies[i].name);
138 power_supply_unregister(&test_power_supplies[i]);
141 module_init(test_power_init);
143 static void __exit test_power_exit(void)
147 /* Let's see how we handle changes... */
148 test_power_ac_online = 0;
149 test_power_battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
150 for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++)
151 power_supply_changed(&test_power_supplies[i]);
152 pr_info("%s: 'changed' event sent, sleeping for 10 seconds...\n",
156 for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++)
157 power_supply_unregister(&test_power_supplies[i]);
159 module_exit(test_power_exit);
161 MODULE_DESCRIPTION("Power supply driver for testing");
162 MODULE_AUTHOR("Anton Vorontsov <cbouatmailru@gmail.com>");
163 MODULE_LICENSE("GPL");