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Fixed brightness control; Reduced number of brightness levels to 4.

master
Ante Vukorepa 2015-07-25 17:11:31 +02:00
parent b8c8ecbcd6
commit 1f52d60ef1
2 changed files with 20 additions and 11 deletions
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20
keyboard/planck/backlight.c
View File

@ -36,14 +36,26 @@ void backlight_set(uint8_t level)
{ {
// Turn off PWM control on PB7, revert to output low. // Turn off PWM control on PB7, revert to output low.
TCCR1A &= ~(_BV(COM1C1)); TCCR1A &= ~(_BV(COM1C1));
// CHANNEL = level << OFFSET | 0x0FFF; CHANNEL = 0x0;
CHANNEL = ((1 << level) - 1); // 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 else
{ {
// Prevent backlight blink on lowest level
PORTB &= ~(_BV(PORTB7));
// Turn on PWM control of PB7 // Turn on PWM control of PB7
TCCR1A |= _BV(COM1C1); TCCR1A |= _BV(COM1C1);
// CHANNEL = level << OFFSET | 0x0FFF; // Set the brightness
CHANNEL = ((1 << level) - 1); 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 //#define MATRIX_HAS_GHOST
/* number of backlight levels */ /* number of backlight levels */
/* NOTE: this is the max value of 0..BACKLIGHT_LEVELS so really 16 levels. */ #define BACKLIGHT_LEVELS 3
#define BACKLIGHT_LEVELS 15
/* Set 0 if debouncing isn't needed */ /* Set 0 if debouncing isn't needed */
#define DEBOUNCE 5 #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)) \ keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
) )
/* /*
* Feature disable options * Feature disable options
* These options are also useful to firmware size reduction. * These options are also useful to firmware size reduction.
*/ */
/* disable debug print */ /* disable debug print */
//#define NO_DEBUG #define NO_DEBUG
/* disable print */ /* disable print */
//#define NO_PRINT #define NO_PRINT
/* disable action features */ /* disable action features */
//#define NO_ACTION_LAYER //#define NO_ACTION_LAYER