//
// Copyright 2014-2016 Cristian Maglie. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//

package serial // import "go.bug.st/serial"

import "syscall"

const devFolder = "/dev"
const regexFilter = "(ttyS|ttyUSB|ttyACM|ttyAMA|rfcomm|ttyO)[0-9]{1,3}"

// termios manipulation functions

var baudrateMap = map[int]int{
	0:       syscall.B9600, // Default to 9600
	50:      syscall.B50,
	75:      syscall.B75,
	110:     syscall.B110,
	134:     syscall.B134,
	150:     syscall.B150,
	200:     syscall.B200,
	300:     syscall.B300,
	600:     syscall.B600,
	1200:    syscall.B1200,
	1800:    syscall.B1800,
	2400:    syscall.B2400,
	4800:    syscall.B4800,
	9600:    syscall.B9600,
	19200:   syscall.B19200,
	38400:   syscall.B38400,
	57600:   syscall.B57600,
	115200:  syscall.B115200,
	230400:  syscall.B230400,
	460800:  syscall.B460800,
	500000:  syscall.B500000,
	576000:  syscall.B576000,
	921600:  syscall.B921600,
	1000000: syscall.B1000000,
	1152000: syscall.B1152000,
	1500000: syscall.B1500000,
	2000000: syscall.B2000000,
	2500000: syscall.B2500000,
	3000000: syscall.B3000000,
	3500000: syscall.B3500000,
	4000000: syscall.B4000000,
}

var databitsMap = map[int]int{
	0: syscall.CS8, // Default to 8 bits
	5: syscall.CS5,
	6: syscall.CS6,
	7: syscall.CS7,
	8: syscall.CS8,
}

const tcCMSPAR int = 0 // may be CMSPAR or PAREXT
const tcIUCLC = syscall.IUCLC

func termiosMask(data int) uint32 {
	return uint32(data)
}

// syscall wrappers

//sys ioctl(fd int, req uint64, data uintptr) (err error)

const ioctlTcgetattr = syscall.TCGETS
const ioctlTcsetattr = syscall.TCSETS