#include <ctype.h>
#include <time.h>
#include <errno.h>
-#include <alloca.h>
#include <unistd.h>
#include <fcntl.h>
#include <termios.h>
#include <sys/select.h>
#include <sys/time.h>
+#include <sys/ioctl.h>
#define INP_BUF_SZ 256
short mot[6];
unsigned int keystate;
+ struct termios saved_term;
+ int saved_mstat;
+
int (*parse)(struct sball*, int, char*, int);
};
-static int stty_sball(int fd);
-static int stty_mag(int fd);
+static int stty_sball(struct sball *sb);
+static int stty_mag(struct sball *sb);
+static void stty_save(struct sball *sb);
+static void stty_restore(struct sball *sb);
static int proc_input(struct sball *sb);
char buf[128];
struct sball *sb = 0;
- if((fd = open(dev, O_RDWR | O_NOCTTY)) == -1) {
+ if((fd = open(dev, O_RDWR | O_NOCTTY | O_NONBLOCK)) == -1) {
fprintf(stderr, "sball_open: failed to open device: %s: %s\n", dev, strerror(errno));
return 0;
}
sb->flags = 0;
sb->len = 0;
- if(stty_sball(fd) == -1) {
+ stty_save(sb);
+
+ if(stty_sball(sb) == -1) {
goto err;
}
+ write(fd, "\r@RESET\r", 8);
- if((sz = read_timeout(fd, buf, sizeof buf - 1, 2000000)) > 0 && memcmp(buf, "\r@1", 3) == 0) {
+ if((sz = read_timeout(fd, buf, sizeof buf - 1, 2000000)) > 0 && strstr(buf, "\r@1")) {
/* we got a response, so it's a spaceball */
make_printable(buf, sz);
printf("Spaceball detected: %s\n", buf);
printf("%d buttons\n", sb->nbuttons);
/* set binary mode and enable automatic data packet sending */
- write(fd, "\rCB\rMSS\r", 8);
+ write(fd, "\rCB\rMSSV\r", 9);
sb->parse = sball_parsepkt;
return sb;
}
/* try as a magellan spacemouse */
- if(stty_mag(fd) == -1) {
+ if(stty_mag(sb) == -1) {
goto err;
}
write(fd, "vQ\r", 3);
}
err:
+ stty_restore(sb);
close(fd);
free(sb);
return 0;
void sball_close(struct sball *sb)
{
if(!sb) return;
+
+ stty_restore(sb);
close(sb->fd);
}
}
/* Labtec spaceball: 9600 8n1 XON/XOFF */
-static int stty_sball(int fd)
+static int stty_sball(struct sball *sb)
{
+ int mstat;
struct termios term;
- if(tcgetattr(fd, &term) == -1) {
- perror("sball_open: tcgetattr");
- return -1;
- }
-
+ term = sb->saved_term;
term.c_oflag = 0;
- term.c_lflag = 0;
+ term.c_lflag = ICANON;
term.c_cc[VMIN] = 0;
- term.c_cc[VTIME] = 1;
+ term.c_cc[VTIME] = 0;
+ term.c_cc[VEOF] = 0;
+ term.c_cc[VEOL] = '\r';
+ term.c_cc[VEOL2] = 0;
+ term.c_cc[VERASE] = 0;
+ term.c_cc[VKILL] = 0;
term.c_cflag = CLOCAL | CREAD | CS8 | HUPCL;
- term.c_iflag = IGNBRK | IGNPAR | IXON | IXOFF;
+ term.c_iflag = IGNBRK | IGNPAR;
cfsetispeed(&term, B9600);
cfsetospeed(&term, B9600);
- if(tcsetattr(fd, TCSANOW, &term) == -1) {
+ if(tcsetattr(sb->fd, TCSAFLUSH, &term) == -1) {
perror("sball_open: tcsetattr");
return -1;
}
+ tcflush(sb->fd, TCIOFLUSH);
+ mstat = sb->saved_mstat | TIOCM_DTR | TIOCM_RTS;
+ ioctl(sb->fd, TIOCMGET, &mstat);
return 0;
}
/* Logicad magellan spacemouse: 9600 8n2 CTS/RTS */
-static int stty_mag(int fd)
+static int stty_mag(struct sball *sb)
{
+ int mstat;
struct termios term;
- if(tcgetattr(fd, &term) == -1) {
- perror("sball_open: tcgetattr");
- return -1;
- }
-
+ term = sb->saved_term;
term.c_oflag = 0;
- term.c_lflag = 0;
+ term.c_lflag = ICANON;
term.c_cc[VMIN] = 0;
- term.c_cc[VTIME] = 1;
+ term.c_cc[VTIME] = 0;
+ term.c_cc[VEOF] = 0;
+ term.c_cc[VEOL] = '\r';
+ term.c_cc[VEOL2] = 0;
+ term.c_cc[VERASE] = 0;
+ term.c_cc[VKILL] = 0;
term.c_cflag = CLOCAL | CREAD | CS8 | CSTOPB | HUPCL | CRTSCTS;
term.c_iflag = IGNBRK | IGNPAR;
cfsetispeed(&term, B9600);
cfsetospeed(&term, B9600);
- if(tcsetattr(fd, TCSANOW, &term) == -1) {
+ if(tcsetattr(sb->fd, TCSAFLUSH, &term) == -1) {
perror("sball_open: tcsetattr");
return -1;
}
+ tcflush(sb->fd, TCIOFLUSH);
+ mstat = sb->saved_mstat | TIOCM_DTR | TIOCM_RTS;
+ ioctl(sb->fd, TIOCMGET, &mstat);
return 0;
}
+static void stty_save(struct sball *sb)
+{
+ tcgetattr(sb->fd, &sb->saved_term);
+ ioctl(sb->fd, TIOCMGET, &sb->saved_mstat);
+}
+
+static void stty_restore(struct sball *sb)
+{
+ tcsetattr(sb->fd, TCSAFLUSH, &sb->saved_term);
+ tcflush(sb->fd, TCIOFLUSH);
+ ioctl(sb->fd, TIOCMSET, &sb->saved_mstat);
+}
+
static int proc_input(struct sball *sb)
{