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Add breathing backlight support for LR92

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This commit is contained in:
Kai Ryu 2014-05-02 15:09:22 +09:00
parent 39512fafe9
commit 8521712bc0
3 changed files with 64 additions and 22 deletions
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1
keyboard/lr92/Makefile
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@ -136,6 +136,7 @@ NKRO_ENABLE = yes # USB Nkey Rollover - not yet supported in LUFA
BACKLIGHT_ENABLE = yes # Enable keyboard backlight functionality
KEYMAP_EX_ENABLE = yes # External keymap in eeprom
KEYMAP_SECTION_ENABLE = yes # Fixed address keymap for keymap editor
BREATHING_LED_ENABLE = yes # Enable breathing backlight
# Optimize size but this may cause error "relocation truncated to fit"

81
keyboard/lr92/backlight.c
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@ -19,6 +19,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
#include "backlight.h"
#include "breathing_led.h"
static const uint8_t backlight_table[] PROGMEM = {
0, 16, 128, 255
@ -27,32 +28,68 @@ static const uint8_t backlight_table[] PROGMEM = {
/* Backlight pin configuration
* PWM: PC6(OC3A)
*/
void backlight_enable(void)
{
// Turn on PWM
cli();
DDRC |= (1<<PC6);
TCCR3A |= ( (1<<WGM10) | (1<<COM3A1) );
TCCR3B |= ( (1<<CS31) | (1<<CS30) );
sei();
}
void backlight_disable(void)
{
// Turn off PWM
cli();
DDRC &= ~(1<<PC6);
TCCR3A &= ~( (1<<WGM10) | (1<<COM3A1) );
TCCR3B &= ~( (1<<CS31) | (1<<CS30) );
sei();
}
void backlight_set(uint8_t level)
{
#ifdef BREATHING_LED_ENABLE
switch (level) {
case 1:
case 2:
case 3:
backlight_enable();
breathing_led_disable();
backlight_set_raw(pgm_read_byte(&backlight_table[level]));
break;
case 4:
case 5:
case 6:
backlight_enable();
breathing_led_enable();
breathing_led_set_duration(6 - level);
break;
case 0:
default:
breathing_led_disable();
backlight_disable();
break;
}
#else
if (level > 0) {
// Turn on PWM
cli();
DDRC |= (1<<PC6);
//TCCR3A = 0b10101001;
//TCCR3B = 0b00000011;
TCCR3A |= ( (1<<WGM30) | (1<<COM3A1) | (1<<COM3B1) | (1<<COM3C1) );
TCCR3B |= ( (1<<CS31) | (1<<CS30) );
sei();
// Set PWM
OCR3A = pgm_read_byte(&backlight_table[level]);
OCR3B = pgm_read_byte(&backlight_table[level]);
backlight_enable();
backlight_set_raw(pgm_read_byte(&backlight_table[level]));
}
else {
// Turn off PWM
cli();
DDRC &= ~(1<<PC6);
//TCCR3A = 0b00000000;
//TCCR3B = 0b00000000;
TCCR3A &= ~( (1<<WGM30) | (1<<COM3A1) | (1<<COM3B1) | (1<<COM3C1) );
TCCR3B &= ~( (1<<CS31) | (1<<CS30) );
sei();
// Set PWM
OCR3A = 0;
OCR3B = 0;
backlight_disable();
}
#endif
}
#ifdef BREATHING_LED_ENABLE
void breathing_led_set_raw(uint8_t raw)
{
backlight_set_raw(raw);
}
#endif
inline void backlight_set_raw(uint8_t raw)
{
OCR3A = raw;
}

4
keyboard/lr92/config.h
View File

@ -42,7 +42,11 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#define DEBOUNCE 5
/* number of backlight levels */
#ifdef BREATHING_LED_ENABLE
#define BACKLIGHT_LEVELS 6
#else
#define BACKLIGHT_LEVELS 3
#endif
/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
#define LOCKING_SUPPORT_ENABLE