Bug 780558 - B2G RIL: expose cell LAC/CID - Part 2: RIL implementation, r=philikon

dom/system/gonk/GonkGPSGeolocationProvider.cpp

@@ -24,6 +24,7 @@
 #include "nsIInterfaceRequestorUtils.h"
 #include "nsINetworkManager.h"
 #include "nsIRadioInterfaceLayer.h"
+#include "nsIDOMMobileConnection.h"
 #include "nsThreadUtils.h"
 
 #ifdef AGPS_TYPE_INVALID
@@ -371,11 +372,15 @@ GonkGPSGeolocationProvider::SetReferenceLocation()
       icc->GetMcc(&location.u.cellID.mcc);
       icc->GetMnc(&location.u.cellID.mnc);
     }
-    nsCOMPtr<nsICellLocation> cell;
-    rilCtx->GetCell(getter_AddRefs(cell));
-    if (cell) {
-      cell->GetLac(&location.u.cellID.lac);
-      cell->GetCid(&location.u.cellID.cid);
+    nsCOMPtr<nsIDOMMozMobileConnectionInfo> voice;
+    rilCtx->GetVoice(getter_AddRefs(voice));
+    if (voice) {
+      nsCOMPtr<nsIDOMMozMobileCellInfo> cell;
+      voice->GetCell(getter_AddRefs(cell));
+      if (cell) {
+        cell->GetGsmLocationAreaCode(&location.u.cellID.lac);
+        cell->GetGsmCellId(&location.u.cellID.cid);
+      }
     }
     if (mAGpsRilInterface) {
       mAGpsRilInterface->set_ref_location(&location, sizeof(location));

dom/system/gonk/RILContentHelper.js

@@ -33,6 +33,8 @@ const MOBILECONNECTIONINFO_CID =
   Components.ID("{a35cfd39-2d93-4489-ac7d-396475dacb27}");
 const MOBILENETWORKINFO_CID =
   Components.ID("{a6c8416c-09b4-46d1-bf29-6520d677d085}");
+const MOBILECELLINFO_CID =
+  Components.ID("{5e809018-68c0-4c54-af0b-2a9b8f748c45}");
 const VOICEMAILSTATUS_CID=
   Components.ID("{5467f2eb-e214-43ea-9b89-67711241ec8e}");
 
@@ -89,6 +91,7 @@ MobileConnectionInfo.prototype = {
   emergencyCallsOnly: false,
   roaming: false,
   network: null,
+  cell: null,
   type: null,
   signalStrength: null,
   relSignalStrength: null
@@ -114,6 +117,23 @@ MobileNetworkInfo.prototype = {
   state: null
 };
 
+function MobileCellInfo() {}
+MobileCellInfo.prototype = {
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIDOMMozMobileCellInfo]),
+  classID:        MOBILECELLINFO_CID,
+  classInfo:      XPCOMUtils.generateCI({
+    classID:          MOBILECELLINFO_CID,
+    classDescription: "MobileCellInfo",
+    flags:            Ci.nsIClassInfo.DOM_OBJECT,
+    interfaces:       [Ci.nsIDOMMozMobileCellInfo]
+  }),
+
+  // nsIDOMMozMobileCellInfo
+
+  gsmLocationAreaCode: null,
+  gsmCellId: null
+};
+
 function VoicemailStatus() {}
 VoicemailStatus.prototype = {
   QueryInterface: XPCOMUtils.generateQI([Ci.nsIDOMMozVoicemailStatus]),
@@ -168,11 +188,24 @@ RILContentHelper.prototype = {
 
   updateConnectionInfo: function updateConnectionInfo(srcInfo, destInfo) {
     for (let key in srcInfo) {
-      if (key != "network") {
+      if ((key != "network") && (key != "cell")) {
         destInfo[key] = srcInfo[key];
       }
     }
 
+    let srcCell = srcInfo.cell;
+    if (!srcCell) {
+      destInfo.cell = null;
+    } else {
+      let cell = destInfo.cell;
+      if (!cell) {
+        cell = destInfo.cell = new MobileCellInfo();
+      }
+
+      cell.gsmLocationAreaCode = srcCell.gsmLocationAreaCode;
+      cell.gsmCellId = srcCell.gsmCellId;
+    }
+
     let srcNetwork = srcInfo.network;
     if (!srcNetwork) {
       destInfo.network= null;

dom/system/gonk/RadioInterfaceLayer.js

@@ -151,14 +151,16 @@ function RadioInterfaceLayer() {
     radioState:     RIL.GECKO_RADIOSTATE_UNAVAILABLE,
     cardState:      RIL.GECKO_CARDSTATE_UNAVAILABLE,
     icc:            null,
-    cell:           null,
 
     // These objects implement the nsIDOMMozMobileConnectionInfo interface,
-    // although the actual implementation lives in the content process.
+    // although the actual implementation lives in the content process. So are
+    // the child attributes `network` and `cell`, which implement
+    // nsIDOMMozMobileNetworkInfo and nsIDOMMozMobileCellInfo respectively.
     voice:          {connected: false,
                      emergencyCallsOnly: false,
                      roaming: false,
                      network: null,
+                     cell: null,
                      type: null,
                      signalStrength: null,
                      relSignalStrength: null},
@@ -166,6 +168,7 @@ function RadioInterfaceLayer() {
                      emergencyCallsOnly: false,
                      roaming: false,
                      network: null,
+                     cell: null,
                      type: null,
                      signalStrength: null,
                      relSignalStrength: null},
@@ -420,9 +423,6 @@ RadioInterfaceLayer.prototype = {
       case "iccmbdn":
         ppmm.sendAsyncMessage("RIL:VoicemailNumberChanged", message);
         break;
-      case "celllocationchanged":
-        this.rilContext.cell = message;
-        break;
       case "ussdreceived":
         debug("ussdreceived " + JSON.stringify(message));
         this.handleUSSDReceived(message);
@@ -506,6 +506,13 @@ RadioInterfaceLayer.prototype = {
       voiceInfo.relSignalStrength = null;
     }
 
+    let newCell = newInfo.cell;
+    if ((newCell.gsmLocationAreaCode < 0) || (newCell.gsmCellId < 0)) {
+      voiceInfo.cell = null;
+    } else {
+      voiceInfo.cell = newCell;
+    }
+
     if (!newInfo.batch) {
       ppmm.sendAsyncMessage("RIL:VoiceInfoChanged", voiceInfo);
     }
@@ -529,6 +536,13 @@ RadioInterfaceLayer.prototype = {
       dataInfo.relSignalStrength = null;
     }
 
+    let newCell = newInfo.cell;
+    if ((newCell.gsmLocationAreaCode < 0) || (newCell.gsmCellId < 0)) {
+      dataInfo.cell = null;
+    } else {
+      dataInfo.cell = newCell;
+    }
+
     if (!newInfo.batch) {
       ppmm.sendAsyncMessage("RIL:DataInfoChanged", dataInfo);
     }

dom/system/gonk/nsIRadioInterfaceLayer.idl

@@ -217,21 +217,7 @@ interface nsIICCRecords : nsISupports
   readonly attribute jsval fdn;
 };
 
-[scriptable, uuid(1b47459d-d0bc-4e91-8509-cc106054b9ee)]
-interface nsICellLocation : nsISupports
-{
-  /**
-   * Location Area Code
-   */
-  readonly attribute unsigned short lac;
-
-  /**
-   * Cell Identity
-   */
-  readonly attribute unsigned long cid;
-};
-
-[scriptable, uuid(a6f6977e-f4ee-42b4-ae79-798c8c47c360)]
+[scriptable, uuid(e6dc89f2-0d4e-46fc-902c-cfeeaee15e40)]
 interface nsIRilContext : nsISupports
 {
   readonly attribute DOMString radioState;
@@ -240,8 +226,6 @@ interface nsIRilContext : nsISupports
 
   readonly attribute nsIICCRecords icc;
 
-  readonly attribute nsICellLocation cell;
-
   readonly attribute nsIDOMMozMobileConnectionInfo voice;
 
   readonly attribute nsIDOMMozMobileConnectionInfo data;

dom/system/gonk/ril_worker.js

@@ -623,11 +623,6 @@ let RIL = {
   voiceRegistrationState: {},
   dataRegistrationState: {},
 
-  /**
-   * The cell location on a phone, such as LAC, CID.
-   */
-  cellLocation: {},
-
   /**
    * List of strings identifying the network operator.
    */
@@ -698,11 +693,13 @@ let RIL = {
    *
    * @param string
    *        String to be parsed.
-   * @param defaultValue
+   * @param defaultValue [optional]
    *        Default value to be used.
+   * @param radix [optional]
+   *        A number that represents the numeral system to be used. Default 10.
    */
-  parseInt: function RIL_parseInt(string, defaultValue) {
-    let number = parseInt(string, 10);
+  parseInt: function RIL_parseInt(string, defaultValue, radix) {
+    let number = parseInt(string, radix || 10);
     if (!isNaN(number)) {
       return number;
     }
@@ -2186,6 +2183,24 @@ let RIL = {
       }
     }
 
+    if (!curState.cell) {
+      curState.cell = {};
+    }
+
+    // From TS 23.003, 0000 and 0xfffe are indicated that no valid LAI exists
+    // in MS. So we still need to report the '0000' as well.
+    let lac = RIL.parseInt(newState[1], -1, 16);
+    if (curState.cell.gsmLocationAreaCode !== lac) {
+      curState.cell.gsmLocationAreaCode = lac;
+      changed = true;
+    }
+
+    let cid = RIL.parseInt(newState[2], -1, 16);
+    if (curState.cell.gsmCellId !== cid) {
+      curState.cell.gsmCellId = cid;
+      changed = true;
+    }
+
     let radioTech = RIL.parseInt(newState[3], NETWORK_CREG_TECH_UNKNOWN);
     if (curState.radioTech != radioTech) {
       changed = true;
@@ -2202,28 +2217,6 @@ let RIL = {
       RIL.getSMSCAddress();
     }
 
-    let cell = this.cellLocation;
-    let cellChanged = false;
-
-    // From TS 23.003, 0000 and 0xfffe are indicated that no valid LAI exists
-    // in MS. So we still need to report the '0000' as well.
-    let lac = parseInt(state[1], 16);
-    if (cell.lac !== lac) {
-      cell.lac = lac;
-      cellChanged = true;
-    }
-
-    let cid = parseInt(state[2], 16);
-    if (cell.cid !== cid) {
-      cell.cid = cid;
-      cellChanged = true;
-    }
-
-    if (cellChanged) {
-      cell.rilMessageType = "celllocationchanged";
-      this.sendDOMMessage(cell);
-    }
-
     // TODO: This zombie code branch that will be raised from the dead once
     // we add explicit CDMA support everywhere (bug 726098).
     let cdma = false;