8a2457d753
Retro_Refit is an example of using a Teensy to replace a keyboard controller on an older keyboard. The original 6x15 keyboard had a non-standard 11x8 matrix.
80 lines
1.7 KiB
C
80 lines
1.7 KiB
C
#include "retro_refit.h"
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__attribute__ ((weak))
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void * matrix_init_user(void) {
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// leave this function blank - it can be defined in a keymap file
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return NULL;
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};
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__attribute__ ((weak))
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void * matrix_scan_user(void) {
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// leave this function blank - it can be defined in a keymap file
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return NULL;
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};
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__attribute__ ((weak))
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void * led_set_user(uint8_t usb_led) {
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// leave this function blank - it can be defined in a keymap file
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return NULL;
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};
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void * matrix_init_kb(void) {
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// put your keyboard start-up code here
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// runs once when the firmware starts up
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// Disable status LED on KB, enable status LED on Teensy (KB_STATUS = !TEENSY_STATUS)
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DDRD |= (1<<6);
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PORTD |= (1<<6);
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if (matrix_init_user) {
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(*matrix_init_user)();
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}
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return NULL;
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};
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void * matrix_scan_kb(void) {
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// put your looping keyboard code here
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// runs every cycle (a lot)
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if (matrix_scan_user) {
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(*matrix_scan_user)();
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}
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return NULL;
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};
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void * led_set_kb(uint8_t usb_led) {
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// put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
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if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
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// output low
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DDRD |= (1<<0);
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PORTD &= ~(1<<0);
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} else {
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// Hi-Z
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DDRD &= ~(1<<0);
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PORTD &= ~(1<<0);
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}
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if (usb_led & (1<<USB_LED_NUM_LOCK)) {
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// output low
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DDRD |= (1<<1);
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PORTD &= ~(1<<1);
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} else {
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// Hi-Z
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DDRD &= ~(1<<1);
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PORTD &= ~(1<<1);
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}
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if (usb_led & (1<<USB_LED_SCROLL_LOCK)) {
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// output low
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DDRC |= (1<<6);
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PORTC &= ~(1<<6);
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} else {
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// Hi-Z
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DDRC &= ~(1<<6);
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PORTC &= ~(1<<6);
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}
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if (led_set_user) {
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(*led_set_user)(usb_led);
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}
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return NULL;
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}; |