74 lines
1.4 KiB
Go
74 lines
1.4 KiB
Go
//
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// Copyright 2014 Cristian Maglie. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//
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package serial
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import "io"
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// SerialPort object
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type SerialPort interface {
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// Read(p []byte) (n int, err error)
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// Write(p []byte) (n int, err error)
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// Close() error
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io.ReadWriteCloser
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// Set port speed
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SetSpeed(baudrate int) error
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// Set port parity
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SetParity(parity Parity) error
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}
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type Parity int
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const (
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PARITY_NONE Parity = iota
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PARITY_ODD
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PARITY_EVEN
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PARITY_MARK
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PARITY_SPACE
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)
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// Platform independent error type for serial ports
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type SerialPortError struct {
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err string
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code int
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}
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const (
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ERROR_PORT_BUSY = 1
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ERROR_PORT_NOT_FOUND = 2
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ERROR_INVALID_SERIAL_PORT = 3
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ERROR_PERMISSION_DENIED = 4
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ERROR_INVALID_PORT_SPEED = 5
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ERROR_ENUMERATING_PORTS = 6
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ERROR_OTHER = 99
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)
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func (e SerialPortError) Error() string {
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switch e.code {
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case ERROR_PORT_BUSY:
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return "Serial port busy"
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case ERROR_PORT_NOT_FOUND:
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return "Serial port not found"
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case ERROR_INVALID_SERIAL_PORT:
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return "Invalid serial port"
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case ERROR_PERMISSION_DENIED:
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return "Permission denied"
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case ERROR_INVALID_PORT_SPEED:
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return "Invalid port speed"
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case ERROR_ENUMERATING_PORTS:
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return "Could not enumerate serial ports"
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}
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return e.err
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}
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func (e SerialPortError) Code() int {
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return e.code
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}
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// vi:ts=2
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