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Fuzev2: cleanup backlight code (still not working correctly)

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25370 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2010-03-28 04:33:26 +00:00
parent dee432fd95
commit ce3d38c0fa
1 changed files with 8 additions and 6 deletions
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14
firmware/target/arm/as3525/sansa-fuzev2/backlight-fuzev2.c
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@ -38,15 +38,16 @@ void _backlight_set_brightness(int brightness)
brightness_internal += brightness + 5;
brightness_internal <<= 25;
brightness_internal >>= 24;
ascodec_write(27, brightness_internal|0xff);
ascodec_write(0x1c, 2); // sub register
ascodec_write(0x1b, brightness_internal|0xff);
}
bool _backlight_init(void)
{
GPIOB_DIR |= 1<<5; /* for buttonlight, stuff below seems to be needed
for buttonlight as well*/
ascodec_write(0x1c, 8|1);
ascodec_write(27, 0xff);
ascodec_write(0x1c, 1); // sub register
ascodec_write(0x1b, ascodec_read(0x1b)|0x80);
return true;
}
@ -59,15 +60,16 @@ void _backlight_on(void)
#if (CONFIG_BACKLIGHT_FADING != BACKLIGHT_FADING_SW_SETTING) /* in bootloader/sim */
/* if we set the brightness to the settings value, then fading up
* is glitchy */
ascodec_write(27, brightness_internal);
ascodec_write(0x1c, 2); // sub register
ascodec_write(0x1b, brightness_internal);
#endif
}
/* not functional */
void _backlight_off(void)
{
ascodec_write(0x1c, 0);
ascodec_write(27, 0);
ascodec_write(0x1c, 1); // sub register
ascodec_write(0x1b, ascodec_read(0x1b) & ~0x80);
#ifdef HAVE_LCD_ENABLE
lcd_enable(false); /* power off visible display */
#endif