KRBL/sim-modem
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Add: power on with context, SIM808 support

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This commit is contained in:
Andrey Egorov 2024-08-19 17:07:46 +03:00
parent 3f5412fac0
commit 509006fae1
8 changed files with 129 additions and 46 deletions
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2
Makefile
View File

@ -4,4 +4,4 @@ export GOARM=6
export CGO_ENABLED=0
build:
@go build -o out/modem main.go
@go build -o out/out main.go

49
api/modem/at/at.go
View File

@ -37,7 +37,8 @@ type Port interface {
Disconnect() error
IsConnected() bool
RawSend(msg string, timeout time.Duration) (string, error)
RawSend(msg string) error
RawRead(timeout time.Duration) (string, error)
Send(cmd string) (Resp, error)
SendWithTimeout(cmd string, timeout time.Duration) (Resp, error)
@ -106,42 +107,53 @@ func (p *atPort) IsConnected() bool {
return p.port != nil
}
// Low level write/read function
func (p *atPort) RawSend(msg string, timeout time.Duration) (string, error) {
func (p *atPort) RawRead(timeout time.Duration) (string, error) {
p.mutex.Lock()
defer p.mutex.Unlock()
// Write
if _, err := p.port.Write([]byte(msg)); err != nil {
return "", fmt.Errorf("serial port write: %w", err)
}
time.Sleep(timeout)
// Read
deadline := time.Now().Add(timeout)
outBuf := make([]byte, 0)
readLoop:
for {
readLen, err := p.port.Read(p.inputBuf)
if err != nil {
return "", fmt.Errorf("port read: %w", err)
}
if readLen == 0 {
if readLen == 0 && time.Now().After(deadline) {
break readLoop
}
outBuf = append(outBuf, p.inputBuf[:readLen]...)
if readLen < len(p.inputBuf) {
break readLoop
}
// if readLen < len(p.inputBuf) {
// break readLoop
// }
}
// p.logger.Println(msg, "\x1b[38;2;150;150;150mRAWREAD:", string(outBuf), "\x1b[38;2;255;255;255m")
return string(outBuf), nil
}
// Low level write/read function
func (p *atPort) RawSend(msg string) error {
p.mutex.Lock()
defer p.mutex.Unlock()
// Write
if _, err := p.port.Write([]byte(msg)); err != nil {
return fmt.Errorf("serial port write: %w", err)
}
return nil
}
func (p *atPort) Send(cmd string) (Resp, error) {
rawResp, err := p.RawSend(cmd+"\r\n", time.Microsecond)
err := p.RawSend(cmd + "\r\n")
if err != nil {
return RespNil, fmt.Errorf("%s request: %w", cmd, err)
}
rawResp, err := p.RawRead(ReadTimeout)
if err != nil {
return RespNil, fmt.Errorf("%s request: %w", cmd, err)
}
if len(rawResp) <= 4 {
return RespNil, fmt.Errorf("%s request: read too small msg: %d byte - %s", cmd, len(rawResp), string(rawResp))
}
@ -151,10 +163,15 @@ func (p *atPort) Send(cmd string) (Resp, error) {
}
func (p *atPort) SendWithTimeout(cmd string, timeout time.Duration) (Resp, error) {
rawResp, err := p.RawSend(cmd+"\r\n", timeout)
err := p.RawSend(cmd + "\r\n")
if err != nil {
return RespNil, fmt.Errorf("%s request: %w", cmd, err)
}
rawResp, err := p.RawRead(timeout)
if err != nil {
return RespNil, fmt.Errorf("%s request: %w", cmd, err)
}
if len(rawResp) <= 4 {
return RespNil, fmt.Errorf("%s request: read too small msg: %d byte - %s", cmd, len(rawResp), string(rawResp))
}

36
api/modem/gpio/gpio.go
View File

@ -1,6 +1,7 @@
package gpio
import (
"context"
"io"
"log"
"time"
@ -8,6 +9,10 @@ import (
gpio "github.com/stianeikeland/go-rpio/v4"
)
const (
waitCtxTimeout = 100 * time.Microsecond
)
type gpioPin struct {
logger *log.Logger
pin gpio.Pin
@ -16,7 +21,7 @@ type gpioPin struct {
type Pin interface {
Init() error
PowerOn()
PowerOff()
PowerOnCtx(ctx context.Context)
io.Closer
}
@ -31,32 +36,47 @@ func (p gpioPin) Init() error {
return gpio.Open()
}
func (p gpioPin) sendOnOffSignal() {
func waitCtx(ctx context.Context, timeout time.Duration) {
deadline := time.Now().Add(timeout)
for {
select {
case <-ctx.Done():
return
default:
if time.Now().After(deadline) {
return
}
}
time.Sleep(waitCtxTimeout)
}
}
func (p gpioPin) sendOnOffSignal(ctx context.Context) {
p.pin.Output()
p.logger.Println("Power on 0/3 + 100ms")
p.pin.Low()
p.pin.Toggle()
time.Sleep(100 * time.Millisecond)
waitCtx(ctx, 100*time.Millisecond)
p.logger.Println("Power on 1/3 + 3s")
p.pin.High()
p.pin.Toggle()
time.Sleep(3 * time.Second)
waitCtx(ctx, 3*time.Second)
p.logger.Println("Power on 2/3 + 30s")
p.pin.Low()
p.pin.Toggle()
time.Sleep(30 * time.Second)
waitCtx(ctx, 30*time.Second)
p.logger.Println("Power on 3/3")
}
func (p gpioPin) PowerOn() {
p.sendOnOffSignal()
p.sendOnOffSignal(context.Background())
}
func (p gpioPin) PowerOff() {
p.sendOnOffSignal()
func (p gpioPin) PowerOnCtx(ctx context.Context) {
p.sendOnOffSignal(ctx)
}
func (p gpioPin) Close() error {

4
api/modem/gps/nmea.go
View File

@ -39,7 +39,7 @@ func secondCountDownTimer(title string, logger *log.Logger, t time.Duration) {
if counter > int(t.Seconds()) {
break
}
logger.Printf("%s: %d/%f\n", title, counter, t.Seconds())
// logger.Printf("%s: %d/%f\n", title, counter, t.Seconds())
time.Sleep(time.Second)
counter += 1
}
@ -118,7 +118,7 @@ func (g *gps) collectNmeaReports(flags nmeaFlags) ([]string, error) {
}
// DEBUG
// g.logger.Println("NMEA raw collect:", resp)
g.logger.Println("NMEA raw collect:", resp)
// Right responce struct:
// \r\n

2
api/modem/internet/ic.go
View File

@ -16,7 +16,7 @@ import (
const (
pingPacketsCount = 3
pingTimeout = 5
inetConnectedTimeout = 2 * time.Second
inetConnectedTimeout = 4 * time.Second
pingAddr = "8.8.8.8"
ifName = "ppp0" // Interface name
inetMetric = 2000

56
api/modem/modem.go
View File

@ -1,6 +1,7 @@
package modem
import (
"context"
"fmt"
"io"
"log"
@ -21,6 +22,9 @@ import (
// yy/MM/dd,hh:mm:ss+zzzz
const timeLayout = "06/01/02,15:04:05-0700"
var ttyPorts = []string{"ttyUSB1", "ttyUSB2", "ttyUSB3", "ttyS0", "ttyAMA2"}
var availableModels = []string{"SIMCOM_SIM7600E-H", "SIMCOM_SIM808"}
type ModemData struct {
Port string `json:"Port"`
gps.Data
@ -35,6 +39,7 @@ type modem struct {
baudrate int
deviceName string
port at.Port
model string
// Gpio values
onOffPin gpio.Pin // For turning on and off
@ -60,6 +65,7 @@ type Modem interface {
GetTime() (time.Time, error)
PowerOn() error
PowerOnCtx(ctx context.Context) error // Because it takes ~30 seconds
PowerOff() error
// Access to SMS, GPS, AT interfaces mostly for debug
@ -131,7 +137,7 @@ func (m *modem) Init() error {
m.logger.Println("=============================== Init submodules")
m.ic = internet.New(log.New(submodulesLogger, "modem-internet : ", log.LstdFlags), m.port)
if err := m.ic.Init(ports[1]); err != nil {
if err := m.ic.Init(ports[len(ports)-1]); err != nil {
m.logger.Printf("\x1b[38;2;255;0;0mInternet: %s\x1b[38;2;255;255;255m\n", err.Error())
} else {
m.logger.Println("\x1b[38;2;0;255;0mInternet OK\x1b[38;2;255;255;255m")
@ -223,6 +229,11 @@ func (m *modem) PowerOn() error {
return nil
}
func (m *modem) PowerOnCtx(ctx context.Context) error {
m.onOffPin.PowerOnCtx(ctx) // DEBUG do not want to wait 30 seconds
return nil
}
func (m *modem) PowerOff() error {
_, err := m.At().Send("AT+CPOF")
return err
@ -359,6 +370,22 @@ func (m *modem) setupPort() error {
// m.restart()
// These commands ensure that correct modes are set
// m.port.RawSend("\r\n\x1A\r\n") // Sometimes enables echo mode
//if m.At().GetName() == "/dev/ttyUSB0" {
// buf := make([]byte, 256)
// for i := 0; i < 10; i++ {
// len, err := m.port.SerialPort().Read(buf)
// if err != nil {
// m.logger.Println("ERROR:", err.Error())
// }
// if len != 0 {
// m.logger.Println(string(buf[:len]))
// }
// time.Sleep(time.Second)
// m.logger.Println(".")
// }
//}
m.printCmd("AT") // Sometimes enables echo mode
m.printCmd("AT") // Sometimes enables echo mode
m.printCmd("ATE0") // Sometimes enables echo mode
m.printCmd("AT+CGPSFTM=0") // Sometimes does not turn off nmea
m.printCmd("AT+CMEE=2") // Turn on errors describtion
@ -368,9 +395,12 @@ func (m *modem) setupPort() error {
}
func (m *modem) checkCurPortDead() error {
if resp, err := m.port.RawSend("AT\r\n", 20*time.Millisecond); err != nil || len(resp) == 0 {
if err := m.port.RawSend("AT\r\n"); err != nil {
return fmt.Errorf("raw send: %w", err)
}
if resp, err := m.port.RawRead(time.Second); err != nil || len(resp) == 0 {
if err != nil {
return fmt.Errorf("raw send: %w", err)
return fmt.Errorf("raw read: %w", err)
}
return fmt.Errorf("read 0")
}
@ -429,11 +459,19 @@ func (m *modem) checkPort(portName string) (outErr error) {
if err != nil {
return fmt.Errorf("get model: %w", err)
}
rightModel := "SIMCOM_SIM7600E-H"
// m.logger.Printf("[% x]\n [% x]", []byte("SIMCOM_SIM7600E-H"), []byte(model))
if len(model) >= len(rightModel) && model[:len(rightModel)] != rightModel {
return fmt.Errorf("invalid modem model: %s", model)
// Check model
foundModel := ""
for _, rightModel := range availableModels {
if len(model) >= len(rightModel) && model[:len(rightModel)] == rightModel {
foundModel = rightModel
break
}
}
if foundModel == "" {
return fmt.Errorf("invalid model: %s", model)
}
m.model = foundModel
m.logger.Println("\x1b[38;2;0;255;0mOK\x1b[38;2;255;255;255m")
return nil
}
@ -477,11 +515,11 @@ func (m *modem) getAtPorts(ports []string) ([]string, error) {
func getTtyPorts(isSoft bool) ([]string, error) {
if isSoft {
return []string{"ttyUSB1", "ttyUSB2", "ttyUSB3"}, nil
return ttyPorts, nil
}
// Get ports
/**/
out, err := exec.Command("ls", "--", "/dev/tty[!0-9]*").Output()
out, err := exec.Command("ls", "/dev/tty[!0-9]*").Output()
if err != nil {
return nil, fmt.Errorf("execute ls command: %w", err)
}

10
api/modem/sms/sms.go
View File

@ -5,7 +5,6 @@ import (
"io"
"log"
"strings"
"time"
"gitea.unprism.ru/KRBL/sim-modem/api/modem/at"
"gitea.unprism.ru/KRBL/sim-modem/api/modem/utils"
@ -69,10 +68,15 @@ func (d *dialer) Send(number, msg string) error {
return err
}
d.logger.Println(sresp)
resp, err := d.port.RawSend(fmt.Sprintf("%s\x1A", msg), time.Millisecond) // Add additional \r\n because there is not supposed to be
if err != nil {
// Message body
if err := d.port.RawSend(fmt.Sprintf("%s\x1A", msg)); err != nil {
return fmt.Errorf("message request: %w", err)
}
resp, err := d.port.RawRead(at.ReadTimeout)
if err != nil {
return fmt.Errorf("message request read: %w", err)
}
d.logger.Println("Send response:", resp)
if !at.Resp(resp).Check() {
return fmt.Errorf("error response: %s", resp)

16
main.go
View File

@ -74,9 +74,10 @@ initLoop:
if err := m.Init(); err != nil {
logger.Println("Init ended with error:", err.Error())
// logger.Println("Turn on...")
// if err := m.PowerOn(); err != nil {
// if err := m.PowerOnCtx(ctx); err != nil {
// logger.Println("Turn on error:", err.Error())
// }
time.Sleep(time.Second)
continue initLoop
}
break initLoop
@ -94,6 +95,7 @@ initLoop:
m.Close()
}()
// Internet connect
if err := InetInit(); err != nil {
return err
}
@ -120,7 +122,8 @@ initLoop:
logger.Println("Break main loop")
return nil
default:
Cmd("AT+CPSI?")
// Cmd("AT+CPSI?")
// Cmd("AT+CIPGSMLOC=1")
// Cmd("AT+CSQ")
// Cmd("AT+CTZU?")
// Cmd("AT+CPIN?")
@ -128,11 +131,12 @@ initLoop:
// logger.Println(m.Gps().GetStatus())
// m.Update()
// st, _ := m.Gps().GetStatus()
// logger.Printf("GPS STATUS: %+v", st)
// logger.Printf("GPS DATA: %+v", m.GetData())
// logger.Printf("FOUND SATELITES: %d\n", st.FoundSatelitesCount)
// data := m.GetData()
// logger.Printf("GPS DATA: %f%s %f%s\n", data.Latitude, data.LatitudeIndicator, data.Longitude, data.LongitudeIndicator)
// logger.Println(m.GetTime())
logger.Println(m.Ic().Ping())
time.Sleep(2 * time.Second)
// logger.Println(m.Ic().Ping())
time.Sleep(time.Second)
}
// Cmd("AT+CSQ")
// Cmd("AT+COPS?")