sansa clipzip: implement backlight

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30390 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 10 insertions, 2 deletions

diff --git a/firmware/target/arm/as3525/sansa-clipzip/backlight-clipzip.c b/firmware/target/arm/as3525/sansa-clipzip/backlight-clipzip.c
index 541595d46a..1fae4b3007 100644
--- a/firmware/target/arm/as3525/sansa-clipzip/backlight-clipzip.c
+++ b/firmware/target/arm/as3525/sansa-clipzip/backlight-clipzip.c
@@ -32,11 +32,19 @@ void _backlight_init()
 
 void _backlight_on(void)
 {
-    /* TODO */
+    GPIOB_PIN(1) = (1 << 1);
+    
+    ascodec_write_pmu(AS3543_BACKLIGHT, 1, 0x91);
+    sleep(1);
+    ascodec_write_pmu(AS3543_BACKLIGHT, 1, 0x91);
+    sleep(1);
+    ascodec_write_pmu(AS3543_BACKLIGHT, 1, 0x91);
 }
 
 void _backlight_off(void)
 {
-    /* TODO */
+    GPIOB_PIN(1) = 0;
+    
+    ascodec_write_pmu(AS3543_BACKLIGHT, 1, 0x91);
 }