EMILE/second/serial.c

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C
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/*
*
* (c) 2004 Laurent Vivier <LaurentVivier@wanadoo.fr>
*
*/
#include <stdio.h>
#include <unistd.h>
#include <macos/types.h>
#include <macos/devices.h>
#include <macos/serial.h>
#include "misc.h"
#include "head.h"
#include "driver.h"
#include "config.h"
static short out_refnum0 = -1;
static short out_refnum1 = -1;
#ifdef USE_CLI
static short in_refnum0 = -1;
static short in_refnum1 = -1;
#endif
#if USE_BUFFER
#define BUFFER_LEN 80
static char buffer[256];
static int buff_len;
#endif
/*
* Technical Note TN1119 "Serial Port Apocrypha"
*
* from http://developer.apple.com/technotes/tn/tn1119.html
*
* Inside Macintosh, Devices, "Using the Serial Driver" :
*
* http://developer.apple.com/documentation/mac/Devices/Devices-315.html
*
*/
/*
*
* ".AOut" Serial port A (modem) output
* ".AIn" Serial port A (modem) input
* ".BOut" Serial port B (printer) output
* ".BIn" Serial port B (printer) input
*
*/
int setserial(short refNum, unsigned int bitrate, unsigned int datasize,
int parity, int stopbits)
{
CntrlParam param;
short seropts;
int res;
switch(bitrate)
{
case 150:
seropts = baud150;
break;
case 300:
seropts = baud300;
break;
case 600:
seropts = baud600;
break;
case 1200:
seropts = baud1200;
break;
case 1800:
seropts = baud1800;
break;
case 2400:
seropts = baud2400;
break;
case 3600:
seropts = baud3600;
break;
case 4800:
seropts = baud3600;
break;
case 7200:
seropts = baud7200;
break;
case 9600:
seropts = baud9600;
break;
case 14400:
seropts = baud14400;
break;
case 19200:
seropts = baud19200;
break;
case 28800:
seropts = baud28800;
break;
case 38400:
seropts = baud38400;
break;
case 57600:
seropts = baud57600;
break;
default:
seropts = baud9600;
break;
}
switch(datasize)
{
case 5:
seropts |= data5;
break;
case 6:
seropts |= data6;
break;
case 7:
seropts |= data7;
break;
case 8:
seropts |= data8;
break;
default:
seropts |= data8;
break;
}
switch(parity)
{
case 0:
seropts |= noParity;
break;
case 1:
seropts |= oddParity;
break;
case 2:
seropts |= evenParity;
break;
}
switch(stopbits)
{
case 0:
seropts |= stop10;
break;
case 1:
seropts |= stop15;
break;
case 2:
seropts |= stop20;
break;
}
param.csCode = kSERDConfiguration;
param.csParam[0] = seropts;
param.ioCRefNum = refNum;
param.ioVRefNum = 0;
param.ioCompletion = 0;
res = PBControlSync((ParmBlkPtr)&param);
return res;
}
void serial_put(char c)
{
#if USE_BUFFER
buffer[buff_len++] = c;
if ( c == '\n' )
{
/* add '\r' and flush buffer */
buffer[buff_len++] = '\r';
goto flush;
}
/* if buffer is full (BUFFER_LEN - 1), flush it
* we take BUFFER_LEN - 1 to have enough room
* if we need to add '\r' on '\n'
*/
if (buff_len == BUFFER_LEN - 1)
goto flush;
return;
flush:
if (out_refnum0 != -1)
write(out_refnum0, buffer, buff_len);
if (out_refnum1 != -1)
write(out_refnum1, buffer, buff_len);
buff_len = 0;
#else
if ( c == '\n' )
{
if (out_refnum0 != -1)
write(out_refnum0, "\n\r", 2);
if (out_refnum1 != -1)
write(out_refnum1, "\n\r", 2);
}
else
{
if (out_refnum0 != -1)
write(out_refnum0, &c, 1);
if (out_refnum1 != -1)
write(out_refnum1, &c, 1);
}
#endif
}
void serial_init(emile_l2_header_t* info)
{
int res;
int bitrate, parity, datasize, stopbits;
res = read_config_modem(info->configuration,
&bitrate, &parity, &datasize, &stopbits);
if (res != -1)
{
res = OpenDriver(c2pstring(".AOut"), &out_refnum0);
if (res != noErr) {
printf("Cannot open modem output port (%d)\n", res);
}
else
{
res = setserial(out_refnum0, bitrate,
datasize,
parity,
stopbits);
if (res != noErr) {
printf("Cannot setup modem output port (%d)\n",
res);
}
}
#ifdef USE_CLI
res = OpenDriver(c2pstring(".AIn"), &in_refnum0);
if (res != noErr) {
printf("Cannot open modem input port (%d)\n", res);
}
else
{
res = setserial(in_refnum0, bitrate,
datasize,
parity,
stopbits);
if (res != noErr) {
printf("Cannot setup modem input port (%d)\n",
res);
}
}
#endif /* USE_CLI */
}
res = read_config_printer(info->configuration,
&bitrate, &parity, &datasize, &stopbits);
if (res != -1) {
res = OpenDriver(c2pstring(".BOut"), &out_refnum1);
if (res != noErr) {
printf("Cannot open printer output port (%d)\n", res);
}
else
{
res = setserial(out_refnum1, bitrate,
datasize,
parity,
stopbits);
if (res != noErr) {
printf("Cannot setup printer output port (%d)\n"
, res);
}
}
#ifdef USE_CLI
res = OpenDriver(c2pstring(".BIn"), &in_refnum1);
if (res != noErr) {
printf("Cannot open printer input port (%d)\n", res);
}
else
{
res = setserial(in_refnum1, bitrate,
datasize,
parity,
stopbits);
if (res != noErr) {
printf("Cannot setup printer input port (%d)\n"
, res);
}
}
#endif /* USE_CLI */
}
#if USE_BUFFER
buff_len = 0;
#endif
}
#ifdef USE_CLI
void serial_cursor_save(void)
{
serial_put('');
serial_put('7');
}
void serial_cursor_restore(void)
{
serial_put('');
serial_put('8');
}
int serial_getchar(void)
{
int count;
char c;
if (in_refnum0 != -1)
{
count = read(in_refnum0, &c, 1);
if (count == 1)
return c;
}
if (in_refnum1 != -1)
{
count = read(in_refnum1, &c, 1);
if (count == 1)
return c;
}
return 0;
}
int serial_keypressed()
{
if (serial_getchar() != 0)
return 1;
return 0;
}
#endif