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Add serial_uart.c and use it for PC98

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This commit is contained in:
tmk 2013-02-25 03:09:10 +09:00
parent 90e6ff92f4
commit ea1ede83c3
5 changed files with 174 additions and 92 deletions
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4
converter/pc98_usb/Makefile
View File

@ -11,8 +11,8 @@ TARGET_DIR = .
SRC = keymap.c \
matrix.c \
led.c \
command_extra.c \
protocol/serial_soft.c
protocol/serial_uart.c
# protocol/serial_soft.c
CONFIG_H = config.h

43
converter/pc98_usb/command_extra.c
View File

@ -1,43 +0,0 @@
#include "stdbool.h"
#include "stdint.h"
#include "keycode.h"
#include "serial.h"
#include "print.h"
#include "command.h"
bool command_extra(uint8_t code)
{
switch (code) {
case KC_H:
case KC_SLASH: /* ? */
print("\n\n----- Sun converter Help -----\n");
print("UP: Bell On\n");
print("DOWN: Bell Off\n");
print("LEFT: Click On\n");
print("RIGHT: Click Off\n");
return false;
case KC_UP:
print("Bell On\n");
serial_send(0x02);
break;
case KC_DOWN:
print("Bell Off\n");
serial_send(0x03);
break;
case KC_LEFT:
print("Click On\n");
serial_send(0x0A);
break;
case KC_RIGHT:
print("Click Off\n");
serial_send(0x0B);
break;
case KC_NUMLOCK:
print("layout\n");
serial_send(0x0F);
break;
default:
return false;
}
return true;
}

103
converter/pc98_usb/config.h
View File

@ -39,15 +39,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
)
/* PC98 Serial(USART) configuration
* asynchronous, positive logic, 19200baud, bit order: LSB first
* 1-start bit, 8-data bit, odd parity, 1-stop bit
*/
#define SERIAL_BAUD 19200
#define SERIAL_PARITY_ODD
#define SERIAL_BIT_ORDER_LSB
#define SERIAL_LOGIC_POSITIVE
/* PC98 Reset Port shared with TXD */
#define PC98_RST_DDR DDRD
#define PC98_RST_PORT PORTD
@ -61,50 +52,92 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#define PC98_RTY_PORT PORTD
#define PC98_RTY_BIT 5
/*
* PC98 Serial(USART) configuration
* asynchronous, positive logic, 19200baud, bit order: LSB first
* 1-start bit, 8-data bit, odd parity, 1-stop bit
*/
/*
* Software Serial
*/
#define SERIAL_SOFT_BAUD 19200
#define SERIAL_SOFT_PARITY_ODD
#define SERIAL_SOFT_BIT_ORDER_LSB
#define SERIAL_SOFT_LOGIC_POSITIVE
/* RXD Port */
#define SERIAL_RXD_DDR DDRD
#define SERIAL_RXD_PORT PORTD
#define SERIAL_RXD_PIN PIND
#define SERIAL_RXD_BIT 2
#ifdef SERIAL_LOGIC_NEGATIVE
#define SERIAL_RXD_READ() ~(SERIAL_RXD_PIN&(1<<SERIAL_RXD_BIT))
#define SERIAL_SOFT_RXD_DDR DDRD
#define SERIAL_SOFT_RXD_PORT PORTD
#define SERIAL_SOFT_RXD_PIN PIND
#define SERIAL_SOFT_RXD_BIT 2
#ifdef SERIAL_SOFT_LOGIC_NEGATIVE
#define SERIAL_SOFT_RXD_READ() ~(SERIAL_SOFT_RXD_PIN&(1<<SERIAL_SOFT_RXD_BIT))
#else
#define SERIAL_RXD_READ() (SERIAL_RXD_PIN&(1<<SERIAL_RXD_BIT))
#define SERIAL_SOFT_RXD_READ() (SERIAL_SOFT_RXD_PIN&(1<<SERIAL_SOFT_RXD_BIT))
#endif
/* RXD Interupt */
#define SERIAL_RXD_VECT INT2_vect
#define SERIAL_RXD_INIT() do { \
#define SERIAL_SOFT_RXD_VECT INT2_vect
#define SERIAL_SOFT_RXD_INIT() do { \
/* pin configuration: input with pull-up */ \
SERIAL_RXD_DDR &= ~(1<<SERIAL_RXD_BIT); \
SERIAL_RXD_PORT |= (1<<SERIAL_RXD_BIT); \
SERIAL_SOFT_RXD_DDR &= ~(1<<SERIAL_SOFT_RXD_BIT); \
SERIAL_SOFT_RXD_PORT |= (1<<SERIAL_SOFT_RXD_BIT); \
/* enable interrupt: INT2(falling edge) */ \
EICRA |= ((1<<ISC21)|(0<<ISC20)); \
EIMSK |= (1<<INT2); \
sei(); \
} while (0)
#define SERIAL_RXD_INT_ENTER()
#define SERIAL_RXD_INT_EXIT() do { \
#define SERIAL_SOFT_RXD_INT_ENTER()
#define SERIAL_SOFT_RXD_INT_EXIT() do { \
/* clear interrupt flag */ \
EIFR = (1<<INTF2); \
} while (0)
/* TXD Port */
#define SERIAL_TXD_DDR DDRD
#define SERIAL_TXD_PORT PORTD
#define SERIAL_TXD_PIN PIND
#define SERIAL_TXD_BIT 3
#ifdef SERIAL_LOGIC_NEGATIVE
#define SERIAL_TXD_ON() do { SERIAL_TXD_PORT &= ~(1<<SERIAL_TXD_BIT); } while (0)
#define SERIAL_TXD_OFF() do { SERIAL_TXD_PORT |= (1<<SERIAL_TXD_BIT); } while (0)
#define SERIAL_SOFT_TXD_DDR DDRD
#define SERIAL_SOFT_TXD_PORT PORTD
#define SERIAL_SOFT_TXD_PIN PIND
#define SERIAL_SOFT_TXD_BIT 3
#ifdef SERIAL_SOFT_LOGIC_NEGATIVE
#define SERIAL_SOFT_TXD_ON() do { \
SERIAL_SOFT_TXD_PORT &= ~(1<<SERIAL_SOFT_TXD_BIT); \
} while (0)
#define SERIAL_SOFT_TXD_OFF() do { \
SERIAL_SOFT_TXD_PORT |= (1<<SERIAL_SOFT_TXD_BIT); \
} while (0)
#else
#define SERIAL_TXD_ON() do { SERIAL_TXD_PORT |= (1<<SERIAL_TXD_BIT); } while (0)
#define SERIAL_TXD_OFF() do { SERIAL_TXD_PORT &= ~(1<<SERIAL_TXD_BIT); } while (0)
#define SERIAL_SOFT_TXD_ON() do { \
SERIAL_SOFT_TXD_PORT |= (1<<SERIAL_SOFT_TXD_BIT); \
} while (0)
#define SERIAL_SOFT_TXD_OFF() do { \
SERIAL_SOFT_TXD_PORT &= ~(1<<SERIAL_SOFT_TXD_BIT); \
} while (0)
#endif
#define SERIAL_TXD_INIT() do { \
#define SERIAL_SOFT_TXD_INIT() do { \
/* pin configuration: output */ \
SERIAL_TXD_DDR |= (1<<SERIAL_TXD_BIT); \
SERIAL_SOFT_TXD_DDR |= (1<<SERIAL_SOFT_TXD_BIT); \
/* idle */ \
SERIAL_TXD_ON(); \
SERIAL_SOFT_TXD_ON(); \
} while (0)
/*
* Hardware Serial(UART)
*/
#ifdef __AVR_ATmega32U4__
#define SERIAL_UART_BAUD 19200
#define SERIAL_UART_DATA UDR1
#define SERIAL_UART_UBRR ((F_CPU/(16UL*SERIAL_UART_BAUD))-1)
#define SERIAL_UART_RXD_VECT USART1_RX_vect
#define SERIAL_UART_TXD_READY (UCSR1A&(1<<UDRE1))
#define SERIAL_UART_INIT() do { \
UBRR1L = (uint8_t) SERIAL_UART_UBRR; /* baud rate */ \
UBRR1H = (uint8_t) (SERIAL_UART_UBRR>>8); /* baud rate */ \
UCSR1B |= (1<<RXCIE1) | (1<<RXEN1); /* RX interrupt, RX: enable */ \
UCSR1B |= (0<<TXCIE1) | (1<<TXEN1); /* TX interrupt, TX: enable */ \
UCSR1C |= (1<<UPM11) | (1<<UPM10); /* parity: none(00), even(01), odd(11) */ \
sei(); \
} while(0)
#else
#error "USART configuration is needed."
#endif
#endif

1
converter/pc98_usb/matrix.c
View File

@ -89,7 +89,6 @@ RETRY:
while (!(code = serial_recv())) ;
print("PC98: send 70: "); print_hex8(code); print("\n");
if (code != 0xFA) goto RETRY;
}
void matrix_init(void)

93
protocol/serial_uart.c Normal file
View File

@ -0,0 +1,93 @@
/*
Copyright 2013 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 "serial.h"
void serial_init(void)
{
SERIAL_UART_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 serial_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;
}
int16_t serial_recv2(void)
{
uint8_t data = 0;
if (rbuf_head == rbuf_tail) {
return -1;
}
data = rbuf[rbuf_tail];
rbuf_tail = (rbuf_tail + 1) % RBUF_SIZE;
return data;
}
void serial_send(uint8_t data)
{
while (!SERIAL_UART_TXD_READY) ;
SERIAL_UART_DATA = data;
}
// USART RX complete interrupt
ISR(SERIAL_UART_RXD_VECT)
{
uint8_t next = (rbuf_head + 1) % RBUF_SIZE;
if (next != rbuf_tail) {
rbuf[rbuf_head] = SERIAL_UART_DATA;
rbuf_head = next;
}
}