USB: usb-storage: fix initializations of urb fields
[linux-2.6.git] / drivers / power / test_power.c
1 /*
2  * Power supply driver for testing.
3  *
4  * Copyright 2010  Anton Vorontsov <cbouatmailru@gmail.com>
5  *
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.
9  */
10
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>
17
18 static int test_power_ac_online = 1;
19 static int test_power_battery_status = POWER_SUPPLY_STATUS_CHARGING;
20
21 static int test_power_get_ac_property(struct power_supply *psy,
22                                       enum power_supply_property psp,
23                                       union power_supply_propval *val)
24 {
25         switch (psp) {
26         case POWER_SUPPLY_PROP_ONLINE:
27                 val->intval = test_power_ac_online;
28                 break;
29         default:
30                 return -EINVAL;
31         }
32         return 0;
33 }
34
35 static int test_power_get_battery_property(struct power_supply *psy,
36                                            enum power_supply_property psp,
37                                            union power_supply_propval *val)
38 {
39         switch (psp) {
40         case POWER_SUPPLY_PROP_MODEL_NAME:
41                 val->strval = "Test battery";
42                 break;
43         case POWER_SUPPLY_PROP_MANUFACTURER:
44                 val->strval = "Linux";
45                 break;
46         case POWER_SUPPLY_PROP_SERIAL_NUMBER:
47                 val->strval = UTS_RELEASE;
48                 break;
49         case POWER_SUPPLY_PROP_STATUS:
50                 val->intval = test_power_battery_status;
51                 break;
52         case POWER_SUPPLY_PROP_CHARGE_TYPE:
53                 val->intval = POWER_SUPPLY_CHARGE_TYPE_FAST;
54                 break;
55         case POWER_SUPPLY_PROP_HEALTH:
56                 val->intval = POWER_SUPPLY_HEALTH_GOOD;
57                 break;
58         case POWER_SUPPLY_PROP_TECHNOLOGY:
59                 val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
60                 break;
61         case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
62                 val->intval = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
63                 break;
64         case POWER_SUPPLY_PROP_CAPACITY:
65                 val->intval = 50;
66                 break;
67         case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
68         case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
69                 val->intval = 3600;
70                 break;
71         default:
72                 pr_info("%s: some properties deliberately report errors.\n",
73                         __func__);
74                 return -EINVAL;
75         }
76         return 0;
77 }
78
79 static enum power_supply_property test_power_ac_props[] = {
80         POWER_SUPPLY_PROP_ONLINE,
81 };
82
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,
97 };
98
99 static char *test_power_ac_supplied_to[] = {
100         "test_battery",
101 };
102
103 static struct power_supply test_power_supplies[] = {
104         {
105                 .name = "test_ac",
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,
112         }, {
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,
118         },
119 };
120
121 static int __init test_power_init(void)
122 {
123         int i;
124         int ret;
125
126         for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++) {
127                 ret = power_supply_register(NULL, &test_power_supplies[i]);
128                 if (ret) {
129                         pr_err("%s: failed to register %s\n", __func__,
130                                 test_power_supplies[i].name);
131                         goto failed;
132                 }
133         }
134
135         return 0;
136 failed:
137         while (--i >= 0)
138                 power_supply_unregister(&test_power_supplies[i]);
139         return ret;
140 }
141 module_init(test_power_init);
142
143 static void __exit test_power_exit(void)
144 {
145         int i;
146
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",
153                 __func__);
154         ssleep(10);
155
156         for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++)
157                 power_supply_unregister(&test_power_supplies[i]);
158 }
159 module_exit(test_power_exit);
160
161 MODULE_DESCRIPTION("Power supply driver for testing");
162 MODULE_AUTHOR("Anton Vorontsov <cbouatmailru@gmail.com>");
163 MODULE_LICENSE("GPL");