test_power: Add VOLTAGE_NOW and BATTERY_TEMP properties

Emulate battery temperature (fixed to 26) and battery voltage (variable)
properties.

Signed-off-by: Dmitry Eremin-Solenikov <dmitry_eremin@mentor.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/drivers/power/test_power.c b/drivers/power/test_power.c
index 99aec3b38b23..b99a452a4fda 100644
--- a/drivers/power/test_power.c
+++ b/drivers/power/test_power.c
@@ -28,6 +28,7 @@ static int battery_health		= POWER_SUPPLY_HEALTH_GOOD;
 static int battery_present              = 1; /* true */
 static int battery_technology           = POWER_SUPPLY_TECHNOLOGY_LION;
 static int battery_capacity             = 50;
+static int battery_voltage              = 3300;
 
 static int test_power_get_ac_property(struct power_supply *psy,
                                       enum power_supply_property psp,
@@ -101,6 +102,12 @@ static int test_power_get_battery_property(struct power_supply *psy,
         case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
                 val->intval = 3600;
                 break;
+        case POWER_SUPPLY_PROP_TEMP:
+                val->intval = 26;
+                break;
+        case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+                val->intval = battery_voltage;
+                break;
         default:
                 pr_info("%s: some properties deliberately report errors.\n",
                         __func__);
@@ -129,6 +136,8 @@ static enum power_supply_property test_power_battery_props[] = {
         POWER_SUPPLY_PROP_MODEL_NAME,
         POWER_SUPPLY_PROP_MANUFACTURER,
         POWER_SUPPLY_PROP_SERIAL_NUMBER,
+        POWER_SUPPLY_PROP_TEMP,
+        POWER_SUPPLY_PROP_VOLTAGE_NOW,
 };
 
 static char *test_power_ac_supplied_to[] = {
@@ -387,6 +396,21 @@ static int param_set_battery_capacity(const char *key,
 
 #define param_get_battery_capacity param_get_int
 
+static int param_set_battery_voltage(const char *key,
+                                        const struct kernel_param *kp)
+{
+        int tmp;
+
+        if (1 != sscanf(key, "%d", &tmp))
+                return -EINVAL;
+
+        battery_voltage = tmp;
+        power_supply_changed(&test_power_supplies[1]);
+        return 0;
+}
+
+#define param_get_battery_voltage param_get_int
+
 static struct kernel_param_ops param_ops_ac_online = {
         .set = param_set_ac_online,
         .get = param_get_ac_online,
@@ -422,6 +446,10 @@ static struct kernel_param_ops param_ops_battery_capacity = {
         .get = param_get_battery_capacity,
 };
 
+static struct kernel_param_ops param_ops_battery_voltage = {
+        .set = param_set_battery_voltage,
+        .get = param_get_battery_voltage,
+};
 
 #define param_check_ac_online(name, p) __param_check(name, p, void);
 #define param_check_usb_online(name, p) __param_check(name, p, void);
@@ -430,6 +458,7 @@ static struct kernel_param_ops param_ops_battery_capacity = {
 #define param_check_battery_technology(name, p) __param_check(name, p, void);
 #define param_check_battery_health(name, p) __param_check(name, p, void);
 #define param_check_battery_capacity(name, p) __param_check(name, p, void);
+#define param_check_battery_voltage(name, p) __param_check(name, p, void);
 
 
 module_param(ac_online, ac_online, 0644);
@@ -457,6 +486,8 @@ MODULE_PARM_DESC(battery_health,
 module_param(battery_capacity, battery_capacity, 0644);
 MODULE_PARM_DESC(battery_capacity, "battery capacity (percentage)");
 
+module_param(battery_voltage, battery_voltage, 0644);
+MODULE_PARM_DESC(battery_voltage, "battery voltage (millivolts)");
 
 MODULE_DESCRIPTION("Power supply driver for testing");
 MODULE_AUTHOR("Anton Vorontsov <cbouatmailru@gmail.com>");