Changeset efcfab9 in mainline

Timestamp:

2012-09-16T11:17:34Z (12 years ago)

Author:

Maurizio Lombardi <m.lombardi85@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

3322d95

Parents:

69a13a4

Message:

rtc: Add support to the battery_status_get() request

File:

• uspace/drv/time/cmos-rtc/cmos-rtc.c (modified) (3 diffs)

uspace/drv/time/cmos-rtc/cmos-rtc.c

@@ -82 +82 @@
 static rtc_t *dev_rtc(ddf_dev_t *dev);
 static rtc_t *fun_rtc(ddf_fun_t *fun);
+static int
+rtc_battery_status_get(ddf_fun_t *fun, battery_status_t *status);
 static int  rtc_time_get(ddf_fun_t *fun, struct tm *t);
 static int  rtc_time_set(ddf_fun_t *fun, struct tm *t);
@@ -120 +122 @@
 /** Battery powered device interface */
 static battery_dev_ops_t rtc_battery_dev_ops = {
-        .battery_status_get = NULL,
+        .battery_status_get = rtc_battery_status_get,
         .battery_charge_level_get = NULL,
 };
@@ -503 +505 @@
 }
 
+/** Get the status of the real time clock battery
+ *
+ * @param fun    The RTC function
+ * @param status The status of the battery
+ *
+ * @return       EOK on success or a negative error code
+ */
+static int
+rtc_battery_status_get(ddf_fun_t *fun, battery_status_t *status)
+{
+        rtc_t *rtc = fun_rtc(fun);
+        const bool batt_ok = rtc_register_read(rtc, RTC_STATUS_D) &
+            RTC_D_BATTERY_OK;
+
+        *status = batt_ok ? BATTERY_OK : BATTERY_LOW;
+
+        return EOK;
+}
+
 /** The dev_add callback of the rtc driver
  *