Added battery_level_safe() function

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@1480 a1c6a512-1295-4272-9138-f99709370657

2 files changed, 8 insertions, 0 deletions

diff --git a/firmware/drivers/power.c b/firmware/drivers/power.c
index 9811d85c8e..1228942af1 100644
--- a/firmware/drivers/power.c
+++ b/firmware/drivers/power.c
@@ -51,6 +51,11 @@ int battery_level(void)
     return ((level-BATTERY_LEVEL_EMPTY) * 100) / BATTERY_RANGE;
 }
 
+bool battery_level_safe(void)
+{
+    return adc_read(ADC_UNREG_POWER) > BATTERY_LEVEL_DANGEROUS;
+}
+
 void charger_enable(bool on)
 {
 #ifdef ARCHOS_RECORDER
diff --git a/firmware/drivers/power.h b/firmware/drivers/power.h
index 497d129e8b..f921b67d5e 100644
--- a/firmware/drivers/power.h
+++ b/firmware/drivers/power.h
@@ -34,4 +34,7 @@ void power_off(void);
 /* Returns battery level in percent */
 int battery_level(void);
 
+/* Tells if the battery level is safe for disk writes */
+bool battery_level_safe(void);
+
 #endif