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>
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@ -22,6 +22,7 @@
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#include <linux/vermagic.h>
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static int ac_online = 1;
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static int usb_online = 1;
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static int battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
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static int battery_health = POWER_SUPPLY_HEALTH_GOOD;
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static int battery_present = 1; /* true */
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@ -42,6 +43,20 @@ static int test_power_get_ac_property(struct power_supply *psy,
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return 0;
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}
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static int test_power_get_usb_property(struct power_supply *psy,
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enum power_supply_property psp,
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union power_supply_propval *val)
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{
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switch (psp) {
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case POWER_SUPPLY_PROP_ONLINE:
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val->intval = usb_online;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int test_power_get_battery_property(struct power_supply *psy,
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enum power_supply_property psp,
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union power_supply_propval *val)
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@ -135,6 +150,14 @@ static struct power_supply test_power_supplies[] = {
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.properties = test_power_battery_props,
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.num_properties = ARRAY_SIZE(test_power_battery_props),
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.get_property = test_power_get_battery_property,
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}, {
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.name = "test_usb",
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.type = POWER_SUPPLY_TYPE_USB,
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.supplied_to = test_power_ac_supplied_to,
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.num_supplicants = ARRAY_SIZE(test_power_ac_supplied_to),
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.properties = test_power_ac_props,
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.num_properties = ARRAY_SIZE(test_power_ac_props),
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.get_property = test_power_get_usb_property,
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},
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};
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@ -167,6 +190,7 @@ static void __exit test_power_exit(void)
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/* Let's see how we handle changes... */
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ac_online = 0;
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usb_online = 0;
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battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
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for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++)
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power_supply_changed(&test_power_supplies[i]);
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@ -275,6 +299,19 @@ static int param_get_ac_online(char *buffer, const struct kernel_param *kp)
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return strlen(buffer);
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}
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static int param_set_usb_online(const char *key, const struct kernel_param *kp)
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{
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usb_online = map_get_value(map_ac_online, key, usb_online);
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power_supply_changed(&test_power_supplies[2]);
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return 0;
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}
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static int param_get_usb_online(char *buffer, const struct kernel_param *kp)
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{
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strcpy(buffer, map_get_key(map_ac_online, usb_online, "unknown"));
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return strlen(buffer);
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}
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static int param_set_battery_status(const char *key,
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const struct kernel_param *kp)
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{
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@ -350,13 +387,16 @@ static int param_set_battery_capacity(const char *key,
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#define param_get_battery_capacity param_get_int
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static struct kernel_param_ops param_ops_ac_online = {
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.set = param_set_ac_online,
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.get = param_get_ac_online,
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};
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static struct kernel_param_ops param_ops_usb_online = {
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.set = param_set_usb_online,
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.get = param_get_usb_online,
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};
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static struct kernel_param_ops param_ops_battery_status = {
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.set = param_set_battery_status,
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.get = param_get_battery_status,
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@ -384,6 +424,7 @@ static struct kernel_param_ops param_ops_battery_capacity = {
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#define param_check_ac_online(name, p) __param_check(name, p, void);
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#define param_check_usb_online(name, p) __param_check(name, p, void);
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#define param_check_battery_status(name, p) __param_check(name, p, void);
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#define param_check_battery_present(name, p) __param_check(name, p, void);
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#define param_check_battery_technology(name, p) __param_check(name, p, void);
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@ -394,6 +435,9 @@ static struct kernel_param_ops param_ops_battery_capacity = {
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module_param(ac_online, ac_online, 0644);
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MODULE_PARM_DESC(ac_online, "AC charging state <on|off>");
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module_param(usb_online, usb_online, 0644);
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MODULE_PARM_DESC(usb_online, "USB charging state <on|off>");
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module_param(battery_status, battery_status, 0644);
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MODULE_PARM_DESC(battery_status,
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"battery status <charging|discharging|not-charging|full>");
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