diff options
Diffstat (limited to 'firmware/target')
-rw-r--r-- | firmware/target/sh/archos/fm_v2/backlight-target.h | 18 | ||||
-rw-r--r-- | firmware/target/sh/archos/recorder/backlight-target.h | 18 |
2 files changed, 28 insertions, 8 deletions
diff --git a/firmware/target/sh/archos/fm_v2/backlight-target.h b/firmware/target/sh/archos/fm_v2/backlight-target.h index f9da89b042..9eff09016a 100644 --- a/firmware/target/sh/archos/fm_v2/backlight-target.h +++ b/firmware/target/sh/archos/fm_v2/backlight-target.h | |||
@@ -28,14 +28,24 @@ | |||
28 | 28 | ||
29 | static inline void _backlight_on(void) | 29 | static inline void _backlight_on(void) |
30 | { | 30 | { |
31 | /* Enable square wave */ | 31 | rtc_write(0x13, 0x10); /* 32 kHz square wave */ |
32 | rtc_write(0x0a, rtc_read(0x0a) | 0x40); | 32 | rtc_write(0x0a, rtc_read(0x0a) | 0x40); /* Enable square wave */ |
33 | } | 33 | } |
34 | 34 | ||
35 | static inline void _backlight_off(void) | 35 | static inline void _backlight_off(void) |
36 | { | 36 | { |
37 | /* Disable square wave */ | 37 | /* While on, backlight is flashing at 32 kHz. If the square wave output |
38 | rtc_write(0x0a, rtc_read(0x0a) & ~0x40); | 38 | is disabled while the backlight is lit, it will become constantly lit, |
39 | (brighter) and slowly fade. This resets the square wave counter and | ||
40 | results in the unlit state */ | ||
41 | unsigned char rtc_0a = rtc_read(0x0a) & ~0x40; | ||
42 | rtc_write(0x0a, rtc_0a); /* Disable square wave */ | ||
43 | rtc_write(0x13, 0xF0); /* 1 Hz square wave */ | ||
44 | rtc_write(0x0a, rtc_0a | 0x40); /* Enable square wave */ | ||
45 | |||
46 | /* When the square wave output is disabled in the unlit state, | ||
47 | the backlight stays off */ | ||
48 | rtc_write(0x0a, rtc_0a); | ||
39 | } | 49 | } |
40 | 50 | ||
41 | #endif | 51 | #endif |
diff --git a/firmware/target/sh/archos/recorder/backlight-target.h b/firmware/target/sh/archos/recorder/backlight-target.h index f9da89b042..9eff09016a 100644 --- a/firmware/target/sh/archos/recorder/backlight-target.h +++ b/firmware/target/sh/archos/recorder/backlight-target.h | |||
@@ -28,14 +28,24 @@ | |||
28 | 28 | ||
29 | static inline void _backlight_on(void) | 29 | static inline void _backlight_on(void) |
30 | { | 30 | { |
31 | /* Enable square wave */ | 31 | rtc_write(0x13, 0x10); /* 32 kHz square wave */ |
32 | rtc_write(0x0a, rtc_read(0x0a) | 0x40); | 32 | rtc_write(0x0a, rtc_read(0x0a) | 0x40); /* Enable square wave */ |
33 | } | 33 | } |
34 | 34 | ||
35 | static inline void _backlight_off(void) | 35 | static inline void _backlight_off(void) |
36 | { | 36 | { |
37 | /* Disable square wave */ | 37 | /* While on, backlight is flashing at 32 kHz. If the square wave output |
38 | rtc_write(0x0a, rtc_read(0x0a) & ~0x40); | 38 | is disabled while the backlight is lit, it will become constantly lit, |
39 | (brighter) and slowly fade. This resets the square wave counter and | ||
40 | results in the unlit state */ | ||
41 | unsigned char rtc_0a = rtc_read(0x0a) & ~0x40; | ||
42 | rtc_write(0x0a, rtc_0a); /* Disable square wave */ | ||
43 | rtc_write(0x13, 0xF0); /* 1 Hz square wave */ | ||
44 | rtc_write(0x0a, rtc_0a | 0x40); /* Enable square wave */ | ||
45 | |||
46 | /* When the square wave output is disabled in the unlit state, | ||
47 | the backlight stays off */ | ||
48 | rtc_write(0x0a, rtc_0a); | ||
39 | } | 49 | } |
40 | 50 | ||
41 | #endif | 51 | #endif |