Firmware checks, nearly ready to push firmware to device

firmware/firmware.go

@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"encoding/binary"
 	"errors"
-	"fmt"
+	"github.com/go-playground/log/v7"
 	"hash/crc32"
 	"io"
 	"io/ioutil"
@@ -18,8 +18,8 @@ func FwExists(path string) bool {
 	return !errors.Is(err, os.ErrNotExist)
 }
 
-func ChkHeader(fwfile string) bool {
+func ChkHeader(fwfile string) error {
-	fmt.Println("checking ", fwfile)
+	log.Info("checking ", fwfile)
 	// SCS has two different file layouts, one for the "Dragons", the other for any older modem
 	var offset uint32
 	if path.Ext(fwfile) == ".dr7" {
@@ -29,32 +29,30 @@ func ChkHeader(fwfile string) bool {
 	}
 	r, err := os.Open(fwfile)
 	if err != nil {
-		return false
+		return err
 	}
 	defer r.Close()
 
 	var header [2]byte
 	_, err = io.ReadFull(r, header[:])
 	if err != nil {
-		return false
+		return err
 	}
 
 	if offset == 0 {
 		if header != [2]byte{0x50, 0x34} {
-			fmt.Println("ERROR: wrong firmware header")
+			return errors.New("ERROR: wrong firmware header")
-			//return false
 		}
 	} else {
 		if header != [2]byte{0x60, 0xea} {
-			fmt.Println("ERROR: wrong firmware header")
+			return errors.New("ERROR: wrong firmware header")
-			//return false
 		}
 	}
 
 	r.Close()
 	firmware, err := ioutil.ReadFile(fwfile)
 	if err != nil {
-		fmt.Println("ERROR: ReadFile operation failed")
+		return errors.New("ERROR: ReadFile operation failed")
 	}
 
 	var size uint32
@@ -68,10 +66,9 @@ func ChkHeader(fwfile string) bool {
 	binary.LittleEndian.PutUint32(a, crc32.ChecksumIEEE(firmware[offset:offset+size]))
 	//if bytes.Equal(a, firmware[4+size:8+size]) { // PTC-3
 	if bytes.Equal(a, firmware[offset+size:offset+size+4]) {
-		fmt.Println("CRC checksum ok!")
+		log.Info("CRC checksum ok!")
 	} else {
-		fmt.Println("CRC checksum NOT ok!")
+		return errors.New("CRC checksum NOT ok!")
-		return false
 	}
-	return true
+	return nil
 }

go.mod

@@ -4,15 +4,23 @@ go 1.17
 
 require (
 	github.com/akamensky/argparse v1.3.1
-	github.com/albenik/go-serial v1.2.0
+	github.com/albenik/go-serial/v2 v2.4.0
 )
 
 require (
-	github.com/creack/goselect v0.1.0 // indirect
+	github.com/creack/goselect v0.1.2 // indirect
-	github.com/sigurn/crc16 v0.0.0-20211026045750-20ab5afb07e3 // indirect
+	github.com/go-playground/ansi/v3 v3.0.0 // indirect
-	github.com/sigurn/crc8 v0.0.0-20160107002456-e55481d6f45c // indirect
+	github.com/go-playground/errors/v5 v5.1.1 // indirect
-	github.com/sigurn/utils v0.0.0-20190728110027-e1fefb11a144 // indirect
+	github.com/go-playground/log/v7 v7.0.2 // indirect
-	go.uber.org/atomic v1.4.0 // indirect
+	github.com/go-playground/pkg/v4 v4.0.0 // indirect
-	go.uber.org/multierr v1.1.0 // indirect
+	github.com/go-playground/pkg/v5 v5.3.0 // indirect
-	golang.org/x/sys v0.0.0-20190712062909-fae7ac547cb7 // indirect
+	github.com/mattn/go-runewidth v0.0.13 // indirect
+	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db // indirect
+	github.com/rivo/uniseg v0.2.0 // indirect
+	github.com/schollz/progressbar/v3 v3.8.3 // indirect
+	go.uber.org/atomic v1.9.0 // indirect
+	go.uber.org/multierr v1.7.0 // indirect
+	golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3 // indirect
+	golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e // indirect
+	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
 )

go.sum

@@ -1,26 +1,95 @@
+github.com/RackSec/srslog v0.0.0-20180709174129-a4725f04ec91/go.mod h1:cDLGBht23g0XQdLjzn6xOGXDkLK182YfINAaZEQLCHQ=
 github.com/akamensky/argparse v1.3.1 h1:kP6+OyvR0fuBH6UhbE6yh/nskrDEIQgEA1SUXDPjx4g=
 github.com/akamensky/argparse v1.3.1/go.mod h1:S5kwC7IuDcEr5VeXtGPRVZ5o/FdhcMlQz4IZQuw64xA=
-github.com/albenik/go-serial v1.2.0 h1:VhEIWqP5tbWtsWoCjeBHHQEf6qeXpsJXvZBP9px5F84=
+github.com/albenik/go-serial/v2 v2.4.0 h1:2yIM9C0l0YznmMbHF8Yw+j0XY1ZDy5YciqhGdOik6r8=
-github.com/albenik/go-serial v1.2.0/go.mod h1:9NHUOwCBJER+lAaitTWLJda/GnYoP4Vga7KU3vn1lmM=
+github.com/albenik/go-serial/v2 v2.4.0/go.mod h1:JUrQKdczCMB0FlXt2rlJJ8zbfFzmjTIAkLPyyVfr5ho=
-github.com/creack/goselect v0.1.0 h1:4QiXIhcpSQF50XGaBsFzesjwX/1qOY5bOveQPmN9CXY=
+github.com/aws/aws-sdk-go v1.25.31/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
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+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
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+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc/go.mod h1:m7x9LTH6d71AHyAX77c9yqWCCa3UKHcVEj9y7hAtKDk=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df/go.mod h1:LRQQ+SO6ZHR7tOkpBDuZnXENFzX8qRjMDMyPD6BRkCw=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

@@ -3,7 +3,10 @@ package main
 import (
 	"fmt"
 	"github.com/akamensky/argparse"
+	"github.com/go-playground/log/v7"
+	"github.com/go-playground/log/v7/handlers/console"
 	"go-scsupdate/firmware"
+	"go-scsupdate/update"
 	"go-scsupdate/usb"
 	"os"
 )
@@ -12,40 +15,52 @@ func main() {
 	parser := argparse.NewParser("go-scsupdate", "Update Firmware of SCS PACTOR modems")
 	serialDevice := parser.String("s", "serialDevice", &argparse.Options{Required: false, Help: "(optional) serial device the modem is attached to, e.g. /dev/ttyUSB0. If not set, go-scsupdate will search for SCS modems."})
 	_ = parser.String("b", "baudrate", &argparse.Options{Required: false, Help: "(optional) sets the serial baudrate, e.g. 115200"})
-	f := parser.String("f", "file", &argparse.Options{Required: false, Help: "(required) the file to flash, e.g. profi41r.pro"})
+	f := parser.String("f", "file", &argparse.Options{Required: true, Help: "(required) the file to flash, e.g. profi41r.pro"})
+	debug := parser.Flag("d", "debug", &argparse.Options{Required: false, Help: "(optional) enable debug logs"})
 	err := parser.Parse(os.Args)
+	cLog := console.New(true)
+	if *debug {
+		log.AddHandler(cLog, log.AllLevels...)
+		log.Debug("DEBUG logging enabled")
+	} else {
+		log.AddHandler(cLog, log.InfoLevel, log.ErrorLevel, log.AlertLevel, log.WarnLevel, log.NoticeLevel, log.PanicLevel)
+	}
 	if err != nil {
-		fmt.Print(parser.Usage(err))
+		log.Fatal(parser.Usage(err))
 		os.Exit(1)
 	}
-	fmt.Println(*serialDevice)
 	var ports []usb.Scsid
 	if *serialDevice == "" {
 		if ports, err = usb.FindSCS(); err == nil {
-			fmt.Println(ports)
 			if len(ports) == 0 {
-				fmt.Println("Found no SCS modem.")
+				log.Fatal("Found no SCS modem.")
-				//os.Exit(1)
 			}
 			if len(ports) != 1 {
-				fmt.Println("Found more than one SCS modem. You need to choose one with the -s flag.\nfound: ")
+				msg := "Found more than one SCS modem. You need to choose one with the -s flag.\nfound: "
 				for _, p := range ports {
-					fmt.Printf("Port: %30s : Name: %s\n", p.Port, p.Name)
+					msg += fmt.Sprintf("Port: %30s : Name: %s\n", p.Port, p.Name)
 				}
+				log.Fatal(msg)
 			}
 		} else {
-			fmt.Println("Error while seaching SCS modems: ", err)
+			log.Fatal("Error while seaching SCS modems: ", err)
 		}
 	}
 
 	if !firmware.FwExists(*f) {
-		fmt.Printf("Error: firmware file %s does not exist.\n", *f)
+		log.Panicf("Error: firmware file %s does not exist.\n", *f)
-		os.Exit(1)
 	}
 
-	if !firmware.ChkHeader(*f) {
+	if firmware.ChkHeader(*f) != nil {
-		os.Exit(1)
+		log.Panic(err)
+
 	} else {
-		fmt.Println("all ok")
+		log.Debug("checks passed")
 	}
+
+	err = update.Update("/dev/ttyUSB0", 829400, *f)
+	if err != nil {
+		log.Panic(err)
+	}
+
 }

update/update.go

@@ -0,0 +1,155 @@
+package update
+
+import (
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"github.com/albenik/go-serial/v2"
+	"github.com/go-playground/log/v7"
+	"github.com/schollz/progressbar/v3"
+	"io/ioutil"
+	"os"
+	"regexp"
+	"strings"
+	"time"
+)
+
+const CHUNKSIZE = 256
+
+type modem struct {
+	port serial.Port
+}
+
+func initmodem(serport string, baudrate int) (*modem, error) {
+	p, err := serial.Open(serport,
+		serial.WithBaudrate(baudrate),
+		serial.WithDataBits(8),
+		serial.WithParity(serial.NoParity),
+		serial.WithStopBits(serial.OneStopBit),
+		serial.WithReadTimeout(1000),
+		serial.WithWriteTimeout(1000))
+	if err != nil {
+		fmt.Printf("ERROR: File %s could not be opened\n", serport)
+		return nil, err
+	}
+	m := &modem{*p}
+	return m, nil
+}
+
+func (m *modem) write(out string, nolog ...bool) ([]byte, error) {
+	if len(nolog) == 0 {
+		log.Debug("Sending " + out)
+	} else {
+		log.Debugf("Sending %d byte(s)", len(out))
+	}
+	m.port.Write([]byte(out))
+	buff := make([]byte, 1024)
+	time.Sleep(100 * time.Millisecond) // give the PTC some time to answer
+	n, err := m.port.Read(buff)
+	// fmt.Printf("Read %d bytes\n", n)
+	if err != nil {
+		log.Errorf("ERROR: cannot read answer from command: %s\n", out)
+		return []byte(""), err
+	}
+	// TODO: Handle EOF
+	return buff[:n], nil
+
+}
+
+func (m *modem) getSerNum() (string, error) {
+	answer, err := m.write("\rsys sern\r")
+	if err != nil {
+		return "", err
+	}
+	re := regexp.MustCompile(`Serial number: \w{2,16}`)
+	sn := strings.ReplaceAll(string(re.Find(answer)), "Serial number: ", "")
+	log.Infof("Serial Number is: %s", sn)
+	return sn, nil
+}
+
+func (m *modem) setDateTime() error {
+	ct := time.Now()
+	answer, err := m.write("DATE " + ct.Format("020106\r"))
+	if err != nil {
+		return err
+	}
+	if strings.Contains(string(answer), "BAD ARGUMENT") {
+		return errors.New("setting DATE returns a BAD ARGUMENT error!")
+	}
+	answer, err = m.write("TIME " + ct.Format("150405\r"))
+	if strings.Contains(string(answer), "BAD ARGUMENT") {
+		return errors.New("setting TIME returns a BAD ARGUMENT error!")
+	}
+	return nil
+}
+
+func (m *modem) writeUpdate(fwfile string) error {
+	_, err := m.write("UPDATE\r")
+	if err != nil {
+		_, _ = m.write("\033", true) // send ESC to cancel the update
+		return err
+	}
+	answer, err := m.write("\006", true)
+	if err != nil {
+		_, _ = m.write("\033", true) // send ESC to cancel the update
+		return err
+	}
+	// TODO: remove that once write process is established
+	_, err = m.write("\033", true)
+	if err != nil {
+		return err
+	}
+	log.Infof("flash stamp: % X", binary.LittleEndian.Uint32(answer[2:6]))
+	flashId := binary.LittleEndian.Uint16(answer[0:2])
+	log.Infof("flash id: % X", flashId)
+	if flashId != 0xa41f && flashId != 0x5b1f && flashId != 0xda1f {
+		_, _ = m.write("\033", true) // send ESC to cancel the update
+		return errors.New("wrong flash id")
+	}
+	r, err := os.Open(fwfile)
+	if err != nil {
+		_, _ = m.write("\033", true) // send ESC to cancel the update
+		return err
+	}
+	fstat, _ := r.Stat()
+	fsize := fstat.Size()
+	r.Close()
+
+	_, err = ioutil.ReadFile(fwfile)
+	if err != nil {
+		_, _ = m.write("\033", true) // send ESC to cancel the update
+		return err
+	}
+	//	fmt.Println(fsize)
+	chunks := uint16(fsize / 256)
+	if fsize%256 != 0 {
+		chunks++
+	}
+
+	// 	a := make([]byte, 2)
+	//	binary.BigEndian.PutUint16(a, chunks)
+
+	bar := progressbar.Default(int64(chunks), "flashing chunk")
+	for i := 0; i < int(chunks); i++ {
+		bar.Add(1)
+		time.Sleep(3 * time.Millisecond)
+	}
+	return nil
+}
+
+func Update(serport string, baudrate int, fwfile string) error {
+	m, err := initmodem(serport, baudrate)
+	defer m.port.Close()
+	if err != nil {
+		return errors.New("FEHLER in Update")
+	}
+	_, _ = m.getSerNum()
+	if m.setDateTime() != nil {
+		return err
+	}
+	if m.writeUpdate(fwfile) != nil {
+		return err
+	}
+
+	return nil
+}

usb/usb.go

@@ -2,9 +2,8 @@ package usb
 
 import (
 	"errors"
-	"fmt"
+	enumerator2 "github.com/albenik/go-serial/v2/enumerator"
-	"github.com/albenik/go-serial/enumerator"
+	"github.com/go-playground/log/v7"
-	"log"
 )
 
 /*
@@ -41,9 +40,8 @@ var scsbaudrates map[string]int = map[string]int{
 func FindSCS() ([]Scsid, error) {
 
 	foundids := []Scsid{}
-	ports, err := enumerator.GetDetailedPortsList()
+	ports, err := enumerator2.GetDetailedPortsList()
 	if err != nil {
-		log.Fatal(err)
 		return nil, err
 	}
 	if len(ports) == 0 {
@@ -51,7 +49,7 @@ func FindSCS() ([]Scsid, error) {
 	}
 
 	for _, port := range ports {
-		fmt.Printf("Found Port: %s\n", port.Name)
+		log.Debugf("Found Port: %s", port.Name)
 		if port.IsUSB {
 			// fmt.Printf("   USB ID     %s:%s\n", Port.VID, Port.PID)
 			// fmt.Printf("   USB serial %s\n", Port.SerialNumber)