Better control of when the sim is ready to be used

cmd/modemd/main.go

@@ -158,13 +158,13 @@ func runMain() error {
 		for i := 0; i < 20; i++ {
 			_, err := mc.RunATCommand("AT")
 			if err == nil {
-				mc.ATReady = true
+				mc.Modem.ATReady = true
 				log.Println("AT command responding.")
 				break
 			}
 			time.Sleep(3 * time.Second)
 		}
-		if !mc.ATReady {
+		if !mc.Modem.ATReady {
 			log.Println("Making noModemATCommandResponse event.")
 			eventclient.AddEvent(eventclient.Event{
 				Timestamp: time.Now(),
@@ -173,24 +173,23 @@ func runMain() error {
 			return errors.New("failed to get AT command response")
 		}
 		time.Sleep(5 * time.Second) // Wait a little bit longer or else might get AT ERRORS
-		mc.ATReady = true
+		mc.Modem.ATReady = true
 		if err := mc.DisableGPS(); err != nil {
 			return err
 		}
 
 		// ========== Checking SIM card. =============
 		log.Println("Checking SIM card.")
-		simReady := false
 		for retries := 5; retries > 0; retries-- {
 			simStatus, err := mc.CheckSimCard()
 			if err == nil && simStatus == "READY" {
-				simReady = true
+				mc.Modem.SimReady = true
 				break
 			}
 			log.Printf("SIM card not ready. Will cycle power %d more time(s) to find SIM card", retries)
 			time.Sleep(5 * time.Second)
 		}
-		if !simReady {
+		if !mc.Modem.SimReady {
 			mc.failedToFindSimCard = true
 			makeModemEvent("noModemSimCard", &mc)
 			continue

cmd/modemd/modem.go

@@ -13,6 +13,8 @@ type Modem struct {
 	Name          string
 	Netdev        string
 	VendorProduct string
+	ATReady       bool
+	SimReady      bool
 }
 
 // NewModem return a new modem from the config

cmd/modemd/modemController.go

@@ -55,7 +55,6 @@ type ModemController struct {
 	RetryFindModemInterval time.Duration
 	MaxOffDuration         time.Duration
 	MinConnDuration        time.Duration
-	ATReady                bool
 
 	lastOnRequestTime    time.Time
 	lastSuccessfulPing   time.Time
@@ -258,15 +257,17 @@ func (mc *ModemController) GetStatus() (map[string]interface{}, error) {
 	status["timestamp"] = time.Now().Format(time.RFC1123Z)
 	status["powered"] = mc.IsPowered
 	status["onOffReason"] = mc.onOffReason
-	status["ATReady"] = mc.ATReady
 
 	if mc.Modem != nil {
+		// Set details for modem
 		modem := make(map[string]interface{})
 		modem["name"] = mc.Modem.Name
 		modem["netdev"] = mc.Modem.Netdev
 		modem["vendor"] = mc.Modem.VendorProduct
+		modem["atReady"] = mc.Modem.ATReady
+		modem["simReady"] = mc.Modem.SimReady
 		modem["connectedTime"] = mc.connectedTime.Format(time.RFC1123Z)
-		if mc.ATReady {
+		if mc.Modem.ATReady {
 			modem["voltage"] = valueOrErrorStr(mc.readVoltage())
 			modem["temp"] = valueOrErrorStr(mc.readTemp())
 			modem["manufacturer"] = valueOrErrorStr(mc.getManufacturer())
@@ -276,7 +277,8 @@ func (mc *ModemController) GetStatus() (map[string]interface{}, error) {
 		}
 		status["modem"] = modem
 
-		if mc.ATReady {
+		// Set details for signal
+		if mc.Modem.ATReady {
 			signal := make(map[string]interface{})
 			signal["strength"] = valueOrErrorStr(mc.signalStrength())
 			signal["band"] = valueOrErrorStr(mc.readBand())
@@ -289,7 +291,10 @@ func (mc *ModemController) GetStatus() (map[string]interface{}, error) {
 				signal["accessTechnology"] = accessTechnology
 			}
 			status["signal"] = signal
+		}
 
+		// Set details for SIM card
+		if mc.Modem.ATReady {
 			simCard := make(map[string]interface{})
 			simCard["simCardStatus"] = valueOrErrorStr(mc.CheckSimCard())
 			simCard["ICCID"] = valueOrErrorStr(mc.readSimICCID())
@@ -711,7 +716,9 @@ func (mc *ModemController) SetModemPower(on bool) error {
 		}
 	} else {
 		_, _ = mc.RunATCommand("AT+CPOF")
-		mc.ATReady = false
+		if mc.Modem != nil {
+			mc.Modem.ATReady = false
+		}
 		log.Println("Triggering modem shutdown.")
 		if err := pinEn.Out(gpio.Low); err != nil {
 			return fmt.Errorf("failed to set modem power pin low: %v", err)

cmd/modemd/service.go

@@ -118,7 +118,7 @@ func (s service) SetAPN(apn string) *dbus.Error {
 }
 
 func (s service) RunATCommand(atCommand string) (string, string, *dbus.Error) {
-	if !s.mc.ATReady {
+	if s.mc.Modem != nil && !s.mc.Modem.ATReady {
 		return "", "", makeDbusError("RunATCommand", errors.New("modem not ready for AT commands"))
 	}
 	totalOut, out, err := s.mc.RunATCommandTotalOutput(atCommand)