led.c

/*
Copyright 2012 Jun Wako <wakojun@gmail.com>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "stdint.h"
#include "serial.h"
#include "led.h"
#include "debug.h"


void led_set(uint8_t usb_led)
{
    /* X68000 LED bits 0: on, 1: off
     * bit 7   1(fixed)
     * bit 6   全角
     * bit 5   ひらがな
     * bit 4   INS
     * bit 3   CAPS
     * bit 2   コード入力
     * bit 1   ローマ字
     * bit 0   かな
     */
    uint8_t led = 0xFF;
    if (usb_led&(1<<USB_LED_NUM_LOCK))      led &= ~(1<<2);
    if (usb_led&(1<<USB_LED_CAPS_LOCK))     led &= ~(1<<3);
    if (usb_led&(1<<USB_LED_SCROLL_LOCK))   led &= ~(1<<1);
    if (usb_led&(1<<USB_LED_COMPOSE))       led &= ~(1<<4);
    if (usb_led&(1<<USB_LED_KANA))          led &= ~(1<<0);
    serial_send(led);
}