Hardware controlled backlight brightness for iPod Video and Nano, retaining the software PWM fade in/ fade out. * Backlight handling cleanup, getting rid of one layer of 'lowlevelness'. * Use atomic GPIO bit manipulation for PP502x backlight handling.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15599 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 33 insertions, 3 deletions

diff --git a/firmware/target/arm/ipod/backlight-target.h b/firmware/target/arm/ipod/backlight-target.h
index f4e34cb53a..1a23ecf8be 100644
--- a/firmware/target/arm/ipod/backlight-target.h
+++ b/firmware/target/arm/ipod/backlight-target.h
@@ -19,8 +19,38 @@
 #ifndef BACKLIGHT_TARGET_H
 #define BACKLIGHT_TARGET_H
 
-#define __backlight_init() true
-void __backlight_on(void);
-void __backlight_off(void);
+#if defined(IPOD_VIDEO) || defined(IPOD_NANO)
+
+bool _backlight_init(void);
+void _backlight_set_brightness(int val);
+void _backlight_led_on(void);
+void _backlight_led_off(void);
+void _backlight_hw_enable(bool on);
+
+#define _backlight_on_isr() _backlight_led_on()
+#define _backlight_off_isr() _backlight_led_off()
+#define _backlight_on_normal()  do { _backlight_hw_enable(true); \
+                                     _backlight_led_on(); } while(0)
+#define _backlight_off_normal() do { _backlight_led_off(); \
+                                     _backlight_hw_enable(false); } while(0)
+#define _BACKLIGHT_FADE_ENABLE
+
+#elif defined HAVE_BACKLIGHT_PWM_FADING
+
+#define _backlight_init() true
+void _backlight_hw_on(void);
+void _backlight_hw_off(void);
+
+#define _backlight_on_isr() _backlight_hw_on()
+#define _backlight_off_isr() _backlight_hw_off()
+#define _backlight_on_normal() _backlight_hw_on()
+#define _backlight_off_normal() _backlight_hw_off()
+
+#else
+
+#define _backlight_init() true
+void _backlight_on(void);
+void _backlight_off(void);
+#endif
 
 #endif