Merge branch 'x68k_led'
tmk
12 years ago
commit
2593ae1328
@ -1,75 +0,0 @@
|
|||||||
/*
|
|
||||||
Copyright 2012 Jun WAKO <wakojun@gmail.com>
|
|
||||||
|
|
||||||
This software is licensed with a Modified BSD License.
|
|
||||||
All of this is supposed to be Free Software, Open Source, DFSG-free,
|
|
||||||
GPL-compatible, and OK to use in both free and proprietary applications.
|
|
||||||
Additions and corrections to this file are welcome.
|
|
||||||
|
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without
|
|
||||||
modification, are permitted provided that the following conditions are met:
|
|
||||||
|
|
||||||
* Redistributions of source code must retain the above copyright
|
|
||||||
notice, this list of conditions and the following disclaimer.
|
|
||||||
|
|
||||||
* Redistributions in binary form must reproduce the above copyright
|
|
||||||
notice, this list of conditions and the following disclaimer in
|
|
||||||
the documentation and/or other materials provided with the
|
|
||||||
distribution.
|
|
||||||
|
|
||||||
* Neither the name of the copyright holders nor the names of
|
|
||||||
contributors may be used to endorse or promote products derived
|
|
||||||
from this software without specific prior written permission.
|
|
||||||
|
|
||||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
||||||
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
||||||
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
||||||
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
||||||
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
||||||
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
||||||
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
||||||
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
||||||
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
||||||
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
||||||
POSSIBILITY OF SUCH DAMAGE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <stdbool.h>
|
|
||||||
#include <avr/io.h>
|
|
||||||
#include <avr/interrupt.h>
|
|
||||||
#include "x68k.h"
|
|
||||||
|
|
||||||
|
|
||||||
void x68k_init(void)
|
|
||||||
{
|
|
||||||
KBD_RX_INIT();
|
|
||||||
}
|
|
||||||
|
|
||||||
// RX ring buffer
|
|
||||||
#define RBUF_SIZE 8
|
|
||||||
static uint8_t rbuf[RBUF_SIZE];
|
|
||||||
static uint8_t rbuf_head = 0;
|
|
||||||
static uint8_t rbuf_tail = 0;
|
|
||||||
|
|
||||||
uint8_t x68k_recv(void)
|
|
||||||
{
|
|
||||||
uint8_t data = 0;
|
|
||||||
if (rbuf_head == rbuf_tail) {
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
data = rbuf[rbuf_tail];
|
|
||||||
rbuf_tail = (rbuf_tail + 1) % RBUF_SIZE;
|
|
||||||
return data;
|
|
||||||
}
|
|
||||||
|
|
||||||
// USART RX complete interrupt
|
|
||||||
ISR(KBD_RX_VECT)
|
|
||||||
{
|
|
||||||
uint8_t next = (rbuf_head + 1) % RBUF_SIZE;
|
|
||||||
if (next != rbuf_tail) {
|
|
||||||
rbuf[rbuf_head] = KBD_RX_DATA;
|
|
||||||
rbuf_head = next;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
@ -1,47 +0,0 @@
|
|||||||
/*
|
|
||||||
Copyright 2012 Jun WAKO <wakojun@gmail.com>
|
|
||||||
|
|
||||||
This software is licensed with a Modified BSD License.
|
|
||||||
All of this is supposed to be Free Software, Open Source, DFSG-free,
|
|
||||||
GPL-compatible, and OK to use in both free and proprietary applications.
|
|
||||||
Additions and corrections to this file are welcome.
|
|
||||||
|
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without
|
|
||||||
modification, are permitted provided that the following conditions are met:
|
|
||||||
|
|
||||||
* Redistributions of source code must retain the above copyright
|
|
||||||
notice, this list of conditions and the following disclaimer.
|
|
||||||
|
|
||||||
* Redistributions in binary form must reproduce the above copyright
|
|
||||||
notice, this list of conditions and the following disclaimer in
|
|
||||||
the documentation and/or other materials provided with the
|
|
||||||
distribution.
|
|
||||||
|
|
||||||
* Neither the name of the copyright holders nor the names of
|
|
||||||
contributors may be used to endorse or promote products derived
|
|
||||||
from this software without specific prior written permission.
|
|
||||||
|
|
||||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
||||||
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
||||||
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
||||||
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
||||||
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
||||||
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
||||||
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
||||||
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
||||||
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
||||||
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
||||||
POSSIBILITY OF SUCH DAMAGE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#ifndef X68K_H
|
|
||||||
#define X68K_H
|
|
||||||
|
|
||||||
/* host role */
|
|
||||||
void x68k_init(void);
|
|
||||||
uint8_t x68k_recv(void);
|
|
||||||
|
|
||||||
/* device role */
|
|
||||||
|
|
||||||
#endif
|
|
||||||
Loading…
Reference in New Issue