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test_power: Add support for USB AC source 

Usually a device has both AC plug and UDC plug usable for charging.
Provide both AC sources.

Signed-off-by: Dmitry Eremin-Solenikov <dmitry_eremin@mentor.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
This commit is contained in:
Dmitry Eremin-Solenikov 2012-05-29 13:37:43 +04:00 committed by Anton Vorontsov
parent ecb7a8ebdc
commit 7384737588
1 changed files with 46 additions and 2 deletions
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48
drivers/power/test_power.c
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@ -22,6 +22,7 @@
#include <linux/vermagic.h>
static int ac_online = 1;
static int usb_online = 1;
static int battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
static int battery_health = POWER_SUPPLY_HEALTH_GOOD;
static int battery_present = 1; /* true */
@ -42,6 +43,20 @@ static int test_power_get_ac_property(struct power_supply *psy,
return 0;
}
static int test_power_get_usb_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
switch (psp) {
case POWER_SUPPLY_PROP_ONLINE:
val->intval = usb_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)
@ -135,6 +150,14 @@ static struct power_supply test_power_supplies[] = {
.properties = test_power_battery_props,
.num_properties = ARRAY_SIZE(test_power_battery_props),
.get_property = test_power_get_battery_property,
}, {
.name = "test_usb",
.type = POWER_SUPPLY_TYPE_USB,
.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_usb_property,
},
};
@ -167,6 +190,7 @@ static void __exit test_power_exit(void)
/* Let's see how we handle changes... */
ac_online = 0;
usb_online = 0;
battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++)
power_supply_changed(&test_power_supplies[i]);
@ -275,6 +299,19 @@ static int param_get_ac_online(char *buffer, const struct kernel_param *kp)
return strlen(buffer);
}
static int param_set_usb_online(const char *key, const struct kernel_param *kp)
{
usb_online = map_get_value(map_ac_online, key, usb_online);
power_supply_changed(&test_power_supplies[2]);
return 0;
}
static int param_get_usb_online(char *buffer, const struct kernel_param *kp)
{
strcpy(buffer, map_get_key(map_ac_online, usb_online, "unknown"));
return strlen(buffer);
}
static int param_set_battery_status(const char *key,
const struct kernel_param *kp)
{
@ -350,13 +387,16 @@ static int param_set_battery_capacity(const char *key,
#define param_get_battery_capacity param_get_int
static struct kernel_param_ops param_ops_ac_online = {
.set = param_set_ac_online,
.get = param_get_ac_online,
};
static struct kernel_param_ops param_ops_usb_online = {
.set = param_set_usb_online,
.get = param_get_usb_online,
};
static struct kernel_param_ops param_ops_battery_status = {
.set = param_set_battery_status,
.get = param_get_battery_status,
@ -384,6 +424,7 @@ static struct kernel_param_ops param_ops_battery_capacity = {
#define param_check_ac_online(name, p) __param_check(name, p, void);
#define param_check_usb_online(name, p) __param_check(name, p, void);
#define param_check_battery_status(name, p) __param_check(name, p, void);
#define param_check_battery_present(name, p) __param_check(name, p, void);
#define param_check_battery_technology(name, p) __param_check(name, p, void);
@ -394,6 +435,9 @@ static struct kernel_param_ops param_ops_battery_capacity = {
module_param(ac_online, ac_online, 0644);
MODULE_PARM_DESC(ac_online, "AC charging state <on|off>");
module_param(usb_online, usb_online, 0644);
MODULE_PARM_DESC(usb_online, "USB charging state <on|off>");
module_param(battery_status, battery_status, 0644);
MODULE_PARM_DESC(battery_status,
"battery status <charging|discharging|not-charging|full>");