1 #include "%KEYBOARD%.h"
4 void matrix_init_user(void) {
5 // leave this function blank - it can be defined in a keymap file
9 void matrix_scan_user(void) {
10 // leave this function blank - it can be defined in a keymap file
13 __attribute__ ((weak))
14 void process_action_user(keyrecord_t *record) {
15 // leave this function blank - it can be defined in a keymap file
18 __attribute__ ((weak))
19 void led_set_user(uint8_t usb_led) {
20 // leave this function blank - it can be defined in a keymap file
23 void matrix_init_kb(void) {
24 // put your keyboard start-up code here
25 // runs once when the firmware starts up
30 void matrix_scan_kb(void) {
31 // put your looping keyboard code here
32 // runs every cycle (a lot)
37 void process_action_kb(keyrecord_t *record) {
38 // put your per-action keyboard code here
39 // runs for every action, just before processing by the firmware
41 process_action_user(record);
44 void led_set_kb(uint8_t usb_led) {
45 // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
47 led_set_user(usb_led);
50 #ifdef BACKLIGHT_ENABLE
53 void backlight_init_ports()
56 // Setup PB7 as output and output low.
60 // Use full 16-bit resolution.
63 // I could write a wall of text here to explain... but TL;DW
64 // Go read the ATmega32u4 datasheet.
65 // And this: http://blog.saikoled.com/post/43165849837/secret-konami-cheat-code-to-high-resolution-pwm-on
67 // Pin PB7 = OCR1C (Timer 1, Channel C)
68 // Compare Output Mode = Clear on compare match, Channel C = COM1C1=1 COM1C0=0
69 // (i.e. start high, go low when counter matches.)
70 // WGM Mode 14 (Fast PWM) = WGM13=1 WGM12=1 WGM11=1 WGM10=0
71 // Clock Select = clk/1 (no prescaling) = CS12=0 CS11=0 CS10=1
73 TCCR1A = _BV(COM1C1) | _BV(WGM11); // = 0b00001010;
74 TCCR1B = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001;
79 void backlight_set(uint8_t level)
83 // Turn off PWM control on PB7, revert to output low.
84 TCCR1A &= ~(_BV(COM1C1));
86 // Prevent backlight blink on lowest level
87 PORTB &= ~(_BV(PORTB7));
89 else if ( level == BACKLIGHT_LEVELS )
91 // Prevent backlight blink on lowest level
92 PORTB &= ~(_BV(PORTB7));
93 // Turn on PWM control of PB7
94 TCCR1A |= _BV(COM1C1);
100 // Prevent backlight blink on lowest level
101 PORTB &= ~(_BV(PORTB7));
102 // Turn on PWM control of PB7
103 TCCR1A |= _BV(COM1C1);
104 // Set the brightness
105 CHANNEL = 0xFFFF >> ((BACKLIGHT_LEVELS - level) * ((BACKLIGHT_LEVELS + 1) / 2));