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Merge pull request #25 from orcinus/master 

Fixed brightness control; Reduced number of brightness levels to 4.
This commit is contained in:
Jack Humbert 2015-07-25 14:55:02 -04:00
parent b8c8ecbcd6 1f52d60ef1
commit 0aa0f75432
2 changed files with 20 additions and 11 deletions
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20
keyboard/planck/backlight.c
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@ -36,14 +36,26 @@ void backlight_set(uint8_t level)
{
// Turn off PWM control on PB7, revert to output low.
TCCR1A &= ~(_BV(COM1C1));
// CHANNEL = level << OFFSET | 0x0FFF;
CHANNEL = ((1 << level) - 1);
CHANNEL = 0x0;
// Prevent backlight blink on lowest level
PORTB &= ~(_BV(PORTB7));
}
else if ( level == BACKLIGHT_LEVELS )
{
// Prevent backlight blink on lowest level
PORTB &= ~(_BV(PORTB7));
// Turn on PWM control of PB7
TCCR1A |= _BV(COM1C1);
// Set the brightness
CHANNEL = 0xFFFF;
}
else
{
// Prevent backlight blink on lowest level
PORTB &= ~(_BV(PORTB7));
// Turn on PWM control of PB7
TCCR1A |= _BV(COM1C1);
// CHANNEL = level << OFFSET | 0x0FFF;
CHANNEL = ((1 << level) - 1);
// Set the brightness
CHANNEL = 0xFFFF >> ((BACKLIGHT_LEVELS - level) * ((BACKLIGHT_LEVELS + 1) / 2));
}
}

9
keyboard/planck/config.h
View File

@ -35,8 +35,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
//#define MATRIX_HAS_GHOST
/* number of backlight levels */
/* NOTE: this is the max value of 0..BACKLIGHT_LEVELS so really 16 levels. */
#define BACKLIGHT_LEVELS 15
#define BACKLIGHT_LEVELS 3
/* Set 0 if debouncing isn't needed */
#define DEBOUNCE 5
@ -51,18 +50,16 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
)
/*
* Feature disable options
* These options are also useful to firmware size reduction.
*/
/* disable debug print */
//#define NO_DEBUG
#define NO_DEBUG
/* disable print */
//#define NO_PRINT
#define NO_PRINT
/* disable action features */
//#define NO_ACTION_LAYER