e200: Tuner driver needs to yield alot and also be mutexed. FM debug screen got broken again and was ignoring cancellation and not drawing the lines.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13896 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 13 insertions, 2 deletions

diff --git a/firmware/target/arm/sandisk/sansa-e200/power-e200.c b/firmware/target/arm/sandisk/sansa-e200/power-e200.c
index 002dcb8407..2745f0ba50 100644
--- a/firmware/target/arm/sandisk/sansa-e200/power-e200.c
+++ b/firmware/target/arm/sandisk/sansa-e200/power-e200.c
@@ -66,9 +66,11 @@ void ide_power_enable(bool on)
 /** Tuner **/
 static bool powered = false;
 
-bool tuner_power(bool status)
+bool tuner_power_nolock(bool status)
 {
-    bool old_status = powered;
+    bool old_status;
+
+    old_status = powered;
 
     if (status != old_status)
     {
@@ -115,6 +117,15 @@ bool tuner_power(bool status)
     return old_status;
 }
 
+bool tuner_power(bool status)
+{
+    bool old_status;
+    lv24020lp_lock();
+    old_status = tuner_power_nolock(status);
+    lv24020lp_unlock();
+    return old_status;
+}
+
 bool tuner_powered(void)
 {
     return powered;