flash_rgb.c

void flash_rgb (void) {
        switch(current_state) {
        case always_on:
                set_color(underglow, false);
                return;

        case flash_begin:
                timer_one = timer_read();
                current_state = flash_off;

        case flash_off:
                timer_two = timer_read();
                elapsed = timer_two - timer_one;
                if (elapsed >= LED_FLASH_DELAY) {
                        set_color(hsv_none, false);
                        timer_one = timer_read();
                        current_state = flash_on;
                }
                return;

        case flash_on:
                timer_two = timer_read();
                elapsed = timer_two - timer_one;
                if (elapsed >= LED_FLASH_DELAY) {
                        set_color(flash_color, false);
                        timer_one = timer_read();
                        if (loop) {
                                current_state = flash_off;
                        } else if (num_extra_flashes_off > 0) {
                                current_state = flash_off;
                                num_extra_flashes_off--;
                        } else {
                                current_state = always_on;
                        }
                }
                return;
        }
}

void set_os (uint8_t os, bool update) {
        current_os = os;
        if (update) {
                eeprom_update_byte(EECONFIG_USERSPACE, current_os);
        }
        switch (os) {
        case OS_MAC:
                set_unicode_input_mode(UC_OSX);
                underglow = (Color){ 300, 255, 255 };
                mod_primary_mask = MOD_GUI_MASK;
                break;
        case OS_WIN:
                set_unicode_input_mode(UC_WINC);
                underglow = (Color){ 180, 255, 255 };
                mod_primary_mask = MOD_CTL_MASK;
                break;
        case OS_NIX:
                set_unicode_input_mode(UC_LNX);
                underglow = (Color){ 60, 255, 255 };
                mod_primary_mask = MOD_CTL_MASK;
                break;
        default:
                underglow = (Color){ 0, 0, 255 };
                mod_primary_mask = MOD_CTL_MASK;
        }
        set_color(underglow, update);
        flash_color = underglow;
        current_state = flash_begin;
        num_extra_flashes_off = 0;
}