101 lines
3.2 KiB
C
101 lines
3.2 KiB
C
// vim: ts=4 sw=4 sts=4
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/* ----------------------------------------------------------------------------
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* main()
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* ----------------------------------------------------------------------------
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* Copyright (c) 2012 Ben Blazak <benblazak.dev@gmail.com>
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* Released under The MIT License (MIT) (see "license.md")
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* Project located at <https://github.com/benblazak/ergodox-firmware>
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* ------------------------------------------------------------------------- */
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#include <util/delay.h>
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#include "lib-other/pjrc/usb_keyboard/usb_keyboard.h"
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#include "lib/data-types.h"
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#include "lib/key-functions.h"
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#include "keyboard.h"
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int main(void) {
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kb_init(); // does controller initialization too
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kb_led_state_power_on();
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usb_init();
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while (!usb_configured());
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kb_led_delay_usb_init(); // give the OS time to load drivers, etc.
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kb_led_state_ready();
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for (;;) {
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// the overall current layer
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static uint8_t current_layer;
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// the current layer for each key
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static uint8_t current_layers[KB_ROWS][KB_COLUMNS];
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// the layer each key was on when it was last pressed
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static uint8_t pressed_layers[KB_ROWS][KB_COLUMNS];
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// swap `kb_is_pressed` and `kb_was_pressed`, then update
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bool (*temp)[KB_ROWS][KB_COLUMNS] = kb_was_pressed;
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kb_was_pressed = kb_is_pressed;
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kb_is_pressed = temp;
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kb_update_matrix(*kb_is_pressed);
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// this loop is responsible to
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// - "execute" keys when they change state (call `_kbfun_exec_key()`,
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// which will call the appropriate function with the appropriate
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// keycode argument from the kb_layout* matrices)
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// - keep track of which layers the keys were on when they were pressed
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// (so they can be released using the function from that layer)
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//
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// note
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// - everything else is the key function's responsibility
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// - see the keyboard layout file ("keyboard/ergodox/layout/*.c") for
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// which key is assigned which function (per layer)
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// - see "lib/key-functions.c" for the function definitions
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// - anything passed to the key function by reference is fair game for
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// that function to modify
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for (uint8_t row=0; row<KB_ROWS; row++) {
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for (uint8_t col=0; col<KB_COLUMNS; col++) {
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bool is_pressed = (*kb_is_pressed)[row][col];
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bool was_pressed = (*kb_was_pressed)[row][col];
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if (is_pressed != was_pressed) {
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uint8_t layer = ( (is_pressed)
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? current_layers[row][col]
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: pressed_layers[row][col] );
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if (is_pressed)
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pressed_layers[row][col] = layer;
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_kbfun_exec_key(
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is_pressed, 0, layer,
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&row, &col, ¤t_layer,
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¤t_layers, &pressed_layers );
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}
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}
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}
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// send the USB report (even if nothing's changed)
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usb_keyboard_send();
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_delay_ms(KB_DEBOUNCE_TIME);
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// update LEDs
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if (keyboard_leds & (1<<0)) { kb_led_num_on(); }
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else { kb_led_num_off(); }
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if (keyboard_leds & (1<<1)) { kb_led_caps_on(); }
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else { kb_led_caps_off(); }
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if (keyboard_leds & (1<<2)) { kb_led_scroll_on(); }
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else { kb_led_scroll_off(); }
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if (keyboard_leds & (1<<3)) { kb_led_compose_on(); }
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else { kb_led_compose_off(); }
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if (keyboard_leds & (1<<4)) { kb_led_kana_on(); }
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else { kb_led_kana_off(); }
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}
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return 0;
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}
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