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Get rid of the last "backlight thread fading" remnant, and of the calculation of the delay. It actually wasn't more than those 3 cases before anyway. 

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20295 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2009-03-11 21:10:17 +00:00
parent 105fe0679d
commit 924556c0a7
1 changed files with 13 additions and 7 deletions
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20
firmware/export/backlight-sw-fading.h
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@ -19,13 +19,19 @@
*
****************************************************************************/
#ifndef BACKLIGHT_THREAD_FADING_H
#define BACKLIGHT_THREAD_FADING_H
#ifndef BACKLIGHT_SW_FADING_H
#define BACKLIGHT_SW_FADING_H
/* total fading time will be current brightness level * FADE_DELAY * 10ms */
#if (MAX_BRIGHTNESS_SETTING >= 25)
#define FADE_DELAY 2 /* =HZ/50 => 20ms */
#elif (MAX_BRIGHTNESS_SETTING >= 16)
#define FADE_DELAY 3 /* =HZ/33 => 30ms */
#else
#define FADE_DELAY 4 /* =HZ/25 => 40ms*/
#endif
/* delay supposed to be MAX_BRIGHTNESS_SETTING*2 rounded to the next multiple
* of 5, however not more than 40 */
#define _FADE_DELAY (((MAX_BRIGHTNESS_SETTING*2+4)/5)*5)
#define FADE_DELAY (HZ/(MIN(_FADE_DELAY, 40)))
void _backlight_fade_update_state(int brightness);
bool _backlight_fade_step(int direction);
@ -38,4 +44,4 @@ enum {
FADING_DOWN,
};
#endif /* _BACKLIGHT_THREAD_FADING_ */
#endif /* BACKLIGHT_SW_FADING_H */