X-Git-Url: https://git.realraum.at/?a=blobdiff_plain;f=go%2Ftermios%2Ftermios_x86.go;fp=go%2Ftermios%2Ftermios_x86.go;h=b1ba03f0dbe1941152c1d51061ada49af1e72de4;hb=d485a5691846998897c4f8b916a09ad783de5289;hp=0000000000000000000000000000000000000000;hpb=a95d80b14c57d801db6b699505ee93297f94179c;p=svn42.git

diff --git a/go/termios/termios_x86.go b/go/termios/termios_x86.go
new file mode 100644
index 0000000..b1ba03f
--- /dev/null
+++ b/go/termios/termios_x86.go
@@ -0,0 +1,164 @@
+// +build linux,386 linux,amd64
+
+
+package termios
+
+import (
+    "os";
+    "syscall";
+    "unsafe"
+    "errors"
+)
+
+// termios types
+type cc_t byte
+type speed_t uint32
+type tcflag_t uint32
+
+// termios constants
+const (
+    IGNBRK = tcflag_t (0000001)
+    BRKINT = tcflag_t (0000002)
+    IGNPAR = tcflag_t (0000004)
+    PARMRK = tcflag_t (0000010)
+    INLCR = tcflag_t (0000100)
+    ECHONL = tcflag_t (0000100)
+    IGNCR = tcflag_t (0000200)
+    ICRNL = tcflag_t (0000400)
+    INPCK = tcflag_t (0000020)
+    ISTRIP = tcflag_t (0000040)
+    IXON = tcflag_t (0002000)
+    OPOST = tcflag_t (0000001)
+    CS8 = tcflag_t (0000060)
+    ECHO = tcflag_t (0000010)
+    ICANON = tcflag_t (0000002)
+    IEXTEN = tcflag_t (0100000)
+    ISIG = tcflag_t (0000001)
+    VTIME = tcflag_t (5)
+    VMIN = tcflag_t (6)
+    CBAUD = tcflag_t (0010017)
+    CBAUDEX = tcflag_t (0010000)
+)
+
+const (
+    B0 = speed_t(0000000)         /* hang up */
+    B50 = speed_t(0000001)
+    B75 = speed_t(0000002)
+    B110 = speed_t(0000003)
+    B134 = speed_t(0000004)
+    B150 = speed_t(0000005)
+    B200 = speed_t(0000006)
+    B300 = speed_t(0000007)
+    B600 = speed_t(0000010)
+    B1200 = speed_t(0000011)
+    B1800 = speed_t(0000012)
+    B2400 = speed_t(0000013)
+    B4800 = speed_t(0000014)
+    B9600 = speed_t(0000015)
+    B19200 = speed_t(0000016)
+    B38400 = speed_t(0000017)
+    B57600 = speed_t(0010001)
+    B115200 = speed_t(0010002)
+    B230400 = speed_t(0010003)
+    B460800 = speed_t(0010004)
+    B500000 = speed_t(0010005)
+    B576000 = speed_t(0010006)
+    B921600 = speed_t(0010007)
+    B1000000 = speed_t(0010010)
+    B1152000 = speed_t(0010011)
+    B1500000 = speed_t(0010012)
+    B2000000 = speed_t(0010013)
+    B2500000 = speed_t(0010014)
+    B3000000 = speed_t(0010015)
+    B3500000 = speed_t(0010016)
+    B4000000 = speed_t(0010017)
+)
+
+//note that struct termios and struct __kernel_termios have DIFFERENT size and layout !!!
+const NCCS = 19  //23 on mips, 19 on alpha (also line and cc reversed), 19 on powerpc (also line and cc reversed), 17 on sparc, 
+type termios struct {
+    c_iflag, c_oflag, c_cflag, c_lflag  tcflag_t
+    c_line  cc_t
+    c_cc    [NCCS]cc_t
+    //~ c_ispeed, c_ospeed  speed_t  //unused in kernel on x86 apparently
+}
+
+// ioctl constants
+const (
+    TCGETS = 0x5401
+    TCSETS = 0x5402
+)
+
+func getTermios(ttyfd uintptr, dst *termios) error {
+    r1, _, errno := syscall.Syscall (syscall.SYS_IOCTL,
+                                     uintptr (ttyfd), uintptr (TCGETS),
+                                     uintptr (unsafe.Pointer (dst)));
+
+    if err := os.NewSyscallError ("SYS_IOCTL", errno); errno!=0 && err != nil {
+        return err
+    }
+
+    if r1 != 0 {
+    //    return errors.New("Error")
+    }
+    return nil
+}
+
+func setTermios(ttyfd uintptr, src *termios) error {
+    r1, _, errno := syscall.Syscall (syscall.SYS_IOCTL,
+                                     uintptr (ttyfd), uintptr (TCSETS),
+                                     uintptr (unsafe.Pointer (src)));
+
+    if err := os.NewSyscallError ("SYS_IOCTL", errno); errno!=0 &&err != nil {
+        return err
+    }
+
+    if r1 != 0 {
+        return errors.New ("Error during ioctl tcsets syscall")
+    }
+    return nil
+}
+
+func SetRawFd(fd uintptr) (error) {
+    var orig_termios termios;
+    if err := getTermios (fd, &orig_termios); err != nil { return err}
+
+    orig_termios.c_iflag &= ^(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
+    orig_termios.c_oflag &= ^(OPOST);
+    orig_termios.c_lflag &= ^(ECHO | ECHONL | ICANON | IEXTEN | ISIG);
+    orig_termios.c_cflag |= (CS8);
+
+    orig_termios.c_cc[VMIN] = 1;
+    orig_termios.c_cc[VTIME] = 0;
+
+    return setTermios(fd, &orig_termios)
+}
+
+func SetRawFile(f *os.File) (error) {
+    return SetRawFd(f.Fd())
+}
+
+func SetSpeedFd(fd uintptr, speed speed_t) (err error) {
+    var orig_termios termios;
+    if err = getTermios (fd, &orig_termios); err != nil { return }
+    
+    //~ orig_termios.c_ispeed = speed
+    //~ orig_termios.c_ospeed = speed
+    //input baudrate == output baudrate and we ignore special case B0
+    orig_termios.c_cflag &= ^(CBAUD | CBAUDEX)
+    orig_termios.c_cflag |= tcflag_t(speed)
+    if err = setTermios(fd, &orig_termios); err != nil { return }
+    //~ if err = getTermios (fd, &orig_termios); err != nil { return }
+    //~ if orig_termios.c_ispeed != speed || orig_termios.c_ospeed != speed {
+        //~ err = errors.New("Failed to set speed")
+    //~ }
+    if err = getTermios (fd, &orig_termios); err != nil { return }
+    if orig_termios.c_cflag & (CBAUD | CBAUDEX) != tcflag_t(speed) {
+        err = errors.New("Failed to set speed")
+    }
+    return
+}
+
+func SetSpeedFile(f *os.File, speed speed_t) (error) {
+    return SetSpeedFd(f.Fd(), speed)
+}
\ No newline at end of file