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term_linux.go
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term_linux.go
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package term
import "golang.org/x/sys/unix"
type attr unix.Termios
const (
// CBaudMask is the logical of CBAUD and CBAUDEX, except
// that those values were not exposed via the syscall
// package. Many of these values will be redundant, but
// this long definition ensures we are portable if some
// architecture defines different values for them (unlikely).
CBaudMask = unix.B50 |
unix.B75 |
unix.B110 |
unix.B134 |
unix.B150 |
unix.B200 |
unix.B300 |
unix.B600 |
unix.B1200 |
unix.B1800 |
unix.B2400 |
unix.B4800 |
unix.B9600 |
unix.B19200 |
unix.B38400 |
unix.B57600 |
unix.B115200 |
unix.B230400 |
unix.B460800 |
unix.B500000 |
unix.B576000 |
unix.B921600 |
unix.B1000000 |
unix.B1152000 |
unix.B1500000 |
unix.B2000000 |
unix.B2500000 |
unix.B3000000 |
unix.B3500000 |
unix.B4000000
)
func (a *attr) getSpeed() (int, error) {
switch a.Cflag & CBaudMask {
case unix.B50:
return 50, nil
case unix.B75:
return 75, nil
case unix.B110:
return 110, nil
case unix.B134:
return 134, nil
case unix.B150:
return 150, nil
case unix.B200:
return 200, nil
case unix.B300:
return 300, nil
case unix.B600:
return 600, nil
case unix.B1200:
return 1200, nil
case unix.B1800:
return 1800, nil
case unix.B2400:
return 2400, nil
case unix.B4800:
return 4800, nil
case unix.B9600:
return 9600, nil
case unix.B19200:
return 19200, nil
case unix.B38400:
return 38400, nil
case unix.B57600:
return 57600, nil
case unix.B115200:
return 115200, nil
case unix.B230400:
return 230400, nil
case unix.B460800:
return 460800, nil
case unix.B500000:
return 500000, nil
case unix.B576000:
return 576000, nil
case unix.B921600:
return 921600, nil
case unix.B1000000:
return 1000000, nil
case unix.B1152000:
return 1152000, nil
case unix.B1500000:
return 1500000, nil
case unix.B2000000:
return 2000000, nil
case unix.B2500000:
return 2500000, nil
case unix.B3000000:
return 3000000, nil
case unix.B3500000:
return 3500000, nil
case unix.B4000000:
return 4000000, nil
default:
return 0, unix.EINVAL
}
}
func (a *attr) setSpeed(baud int) error {
var rate uint32
switch baud {
case 50:
rate = unix.B50
case 75:
rate = unix.B75
case 110:
rate = unix.B110
case 134:
rate = unix.B134
case 150:
rate = unix.B150
case 200:
rate = unix.B200
case 300:
rate = unix.B300
case 600:
rate = unix.B600
case 1200:
rate = unix.B1200
case 1800:
rate = unix.B1800
case 2400:
rate = unix.B2400
case 4800:
rate = unix.B4800
case 9600:
rate = unix.B9600
case 19200:
rate = unix.B19200
case 38400:
rate = unix.B38400
case 57600:
rate = unix.B57600
case 115200:
rate = unix.B115200
case 230400:
rate = unix.B230400
case 460800:
rate = unix.B460800
case 500000:
rate = unix.B500000
case 576000:
rate = unix.B576000
case 921600:
rate = unix.B921600
case 1000000:
rate = unix.B1000000
case 1152000:
rate = unix.B1152000
case 1500000:
rate = unix.B1500000
case 2000000:
rate = unix.B2000000
case 2500000:
rate = unix.B2500000
case 3000000:
rate = unix.B3000000
case 3500000:
rate = unix.B3500000
case 4000000:
rate = unix.B4000000
default:
return unix.EINVAL
}
a.Cflag = unix.CS8 | unix.CREAD | unix.CLOCAL | rate
a.Ispeed = rate
a.Ospeed = rate
return nil
}