41 lines
702 B
C
41 lines
702 B
C
#include <screen.h>
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#include <mpu.h>
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/*
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screen_setBacklight()
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On compatible models, turns on or turns off the backlight.
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*/
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void screen_setBacklight(int on)
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{
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if(isSH3())
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{
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volatile unsigned char *PGDR = (void *)0xa400012c;
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if(on) *PGDR |= 0x80;
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else *PGDR &= ~0x80;
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}
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else
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{
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volatile unsigned char *PNDR = (void *)0xa4050138;
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if(on) *PNDR |= 0x10;
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else *PNDR &= ~0x10;
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}
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}
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/*
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screen_toggleBacklight()
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Changes the backlight state, regardless of its current state.
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*/
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void screen_toggleBacklight(void)
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{
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if(isSH3())
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{
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volatile unsigned char *PGDR = (void *)0xa400012c;
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*PGDR ^= 0x80;
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}
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else
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{
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volatile unsigned char *PNDR = (void *)0xa4050138;
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*PNDR ^= 0x10;
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}
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}
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