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Diffstat (limited to 'keyboard/arrow_pad/arrow_pad.c')
-rw-r--r--keyboard/arrow_pad/arrow_pad.c114
1 files changed, 114 insertions, 0 deletions
diff --git a/keyboard/arrow_pad/arrow_pad.c b/keyboard/arrow_pad/arrow_pad.c
new file mode 100644
index 0000000000..f29c2c53fe
--- /dev/null
+++ b/keyboard/arrow_pad/arrow_pad.c
@@ -0,0 +1,114 @@
+#include "arrow_pad.h"
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+ // leave this function blank - it can be defined in a keymap file
+};
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+ // leave this function blank - it can be defined in a keymap file
+}
+
+__attribute__ ((weak))
+bool process_action_user(keyrecord_t *record) {
+ // leave this function blank - it can be defined in a keymap file
+ return true;
+}
+
+__attribute__ ((weak))
+void led_set_user(uint8_t usb_led) {
+ // leave this function blank - it can be defined in a keymap file
+}
+
+void matrix_init_kb(void) {
+ // put your keyboard start-up code here
+ // runs once when the firmware starts up
+
+#ifdef BACKLIGHT_ENABLE
+ backlight_init_ports();
+#endif
+
+ matrix_init_user();
+}
+
+void matrix_scan_kb(void) {
+ // put your looping keyboard code here
+ // runs every cycle (a lot)
+
+ matrix_scan_user();
+}
+
+bool process_action_kb(keyrecord_t *record) {
+ // put your per-action keyboard code here
+ // runs for every action, just before processing by the firmware
+
+ return process_action_user(record);
+}
+
+void led_set_kb(uint8_t usb_led) {
+ // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
+
+ led_set_user(usb_led);
+}
+
+#ifdef BACKLIGHT_ENABLE
+#define CHANNEL OCR1C
+
+void backlight_init_ports()
+{
+
+ // Setup PB7 as output and output low.
+ DDRB |= (1<<7);
+ PORTB &= ~(1<<7);
+
+ // Use full 16-bit resolution.
+ ICR1 = 0xFFFF;
+
+ // I could write a wall of text here to explain... but TL;DW
+ // Go read the ATmega32u4 datasheet.
+ // And this: http://blog.saikoled.com/post/43165849837/secret-konami-cheat-code-to-high-resolution-pwm-on
+
+ // Pin PB7 = OCR1C (Timer 1, Channel C)
+ // Compare Output Mode = Clear on compare match, Channel C = COM1C1=1 COM1C0=0
+ // (i.e. start high, go low when counter matches.)
+ // WGM Mode 14 (Fast PWM) = WGM13=1 WGM12=1 WGM11=1 WGM10=0
+ // Clock Select = clk/1 (no prescaling) = CS12=0 CS11=0 CS10=1
+
+ TCCR1A = _BV(COM1C1) | _BV(WGM11); // = 0b00001010;
+ TCCR1B = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001;
+
+ backlight_init();
+}
+
+void backlight_set(uint8_t level)
+{
+ if ( level == 0 )
+ {
+ // Turn off PWM control on PB7, revert to output low.
+ TCCR1A &= ~(_BV(COM1C1));
+ 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);
+ // Set the brightness
+ CHANNEL = 0xFFFF >> ((BACKLIGHT_LEVELS - level) * ((BACKLIGHT_LEVELS + 1) / 2));
+ }
+}
+
+#endif \ No newline at end of file