Remove obsolete code for monitoring USB status

Change-Id: I8ac8900b3135f03b7717540b825ff6df76f31c0b
Signed-off-by: Mike Lockwood <[email protected]>

Author: mikeandroid

CommandListener.cpp

@@ -44,7 +44,6 @@ CommandListener::CommandListener() :
     registerCmd(new VolumeCmd());
     registerCmd(new AsecCmd());
     registerCmd(new ObbCmd());
-    registerCmd(new ShareCmd());
     registerCmd(new StorageCmd());
     registerCmd(new XwarpCmd());
     registerCmd(new CryptfsCmd());
@@ -200,39 +199,6 @@ int CommandListener::VolumeCmd::runCommand(SocketClient *cli,
     return 0;
 }
 
-CommandListener::ShareCmd::ShareCmd() :
-                 VoldCommand("share") {
-}
-
-int CommandListener::ShareCmd::runCommand(SocketClient *cli,
-                                                      int argc, char **argv) {
-    dumpArgs(argc, argv, -1);
-
-    if (argc < 2) {
-        cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing Argument", false);
-        return 0;
-    }
-
-    VolumeManager *vm = VolumeManager::Instance();
-    int rc = 0;
-
-    if (!strcmp(argv[1], "status")) {
-        bool avail = false;
-
-        if (vm->shareAvailable(argv[2], &avail)) {
-            cli->sendMsg(
-                    ResponseCode::OperationFailed, "Failed to determine share availability", true);
-        } else {
-            cli->sendMsg(ResponseCode::ShareStatusResult,
-                    (avail ? "Share available" : "Share unavailable"), false);
-        }
-    } else {
-        cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown share cmd", false);
-    }
-
-    return 0;
-}
-
 CommandListener::StorageCmd::StorageCmd() :
                  VoldCommand("storage") {
 }

CommandListener.h

@@ -42,13 +42,6 @@ class CommandListener : public FrameworkListener {
         int runCommand(SocketClient *c, int argc, char ** argv);
     };
 
-    class ShareCmd : public VoldCommand {
-    public:
-        ShareCmd();
-        virtual ~ShareCmd() {}
-        int runCommand(SocketClient *c, int argc, char ** argv);
-    };
-
     class AsecCmd : public VoldCommand {
     public:
         AsecCmd();

NetlinkHandler.cpp

@@ -53,11 +53,5 @@ void NetlinkHandler::onEvent(NetlinkEvent *evt) {
 
     if (!strcmp(subsys, "block")) {
         vm->handleBlockEvent(evt);
-    } else if (!strcmp(subsys, "switch")) {
-        vm->handleSwitchEvent(evt);
-    } else if (!strcmp(subsys, "usb_composite")) {
-        vm->handleUsbCompositeEvent(evt);
-    } else if (!strcmp(subsys, "battery")) {
-    } else if (!strcmp(subsys, "power_supply")) {
     }
 }

VolumeManager.cpp

@@ -56,47 +56,10 @@ VolumeManager::VolumeManager() {
     mVolumes = new VolumeCollection();
     mActiveContainers = new AsecIdCollection();
     mBroadcaster = NULL;
-    mUsbMassStorageEnabled = false;
-    mUsbConnected = false;
     mUmsSharingCount = 0;
     mSavedDirtyRatio = -1;
     // set dirty ratio to 0 when UMS is active
     mUmsDirtyRatio = 0;
-
-    readInitialState();
-}
-
-void VolumeManager::readInitialState() {
-    FILE *fp;
-    char state[255];
-
-    /*
-     * Read the initial mass storage enabled state
-     */
-    if ((fp = fopen("/sys/devices/virtual/usb_composite/usb_mass_storage/enable", "r"))) {
-        if (fgets(state, sizeof(state), fp)) {
-            mUsbMassStorageEnabled = !strncmp(state, "1", 1);
-        } else {
-            SLOGE("Failed to read usb_mass_storage enabled state (%s)", strerror(errno));
-        }
-        fclose(fp);
-    } else {
-        SLOGD("USB mass storage support is not enabled in the kernel");
-    }
-
-    /*
-     * Read the initial USB connected state
-     */
-    if ((fp = fopen("/sys/devices/virtual/switch/usb_configuration/state", "r"))) {
-        if (fgets(state, sizeof(state), fp)) {
-            mUsbConnected = !strncmp(state, "1", 1);
-        } else {
-            SLOGE("Failed to read usb_configuration switch (%s)", strerror(errno));
-        }
-        fclose(fp);
-    } else {
-        SLOGD("usb_configuration switch is not enabled in the kernel");
-    }
 }
 
 VolumeManager::~VolumeManager() {
@@ -157,56 +120,6 @@ int VolumeManager::addVolume(Volume *v) {
     return 0;
 }
 
-void VolumeManager::notifyUmsAvailable(bool available) {
-    char msg[255];
-
-    snprintf(msg, sizeof(msg), "Share method ums now %s",
-             (available ? "available" : "unavailable"));
-    SLOGD(msg);
-    getBroadcaster()->sendBroadcast(ResponseCode::ShareAvailabilityChange,
-                                    msg, false);
-}
-
-void VolumeManager::handleSwitchEvent(NetlinkEvent *evt) {
-    const char *devpath = evt->findParam("DEVPATH");
-    const char *name = evt->findParam("SWITCH_NAME");
-    const char *state = evt->findParam("SWITCH_STATE");
-
-    if (!name || !state) {
-        SLOGW("Switch %s event missing name/state info", devpath);
-        return;
-    }
-
-    bool oldAvailable = massStorageAvailable();
-    if (!strcmp(name, "usb_configuration")) {
-        mUsbConnected = !strcmp(state, "1");
-        SLOGD("USB %s", mUsbConnected ? "connected" : "disconnected");
-        bool newAvailable = massStorageAvailable();
-        if (newAvailable != oldAvailable) {
-            notifyUmsAvailable(newAvailable);
-        }
-    }
-}
-void VolumeManager::handleUsbCompositeEvent(NetlinkEvent *evt) {
-    const char *function = evt->findParam("FUNCTION");
-    const char *enabled = evt->findParam("ENABLED");
-
-    if (!function || !enabled) {
-        SLOGW("usb_composite event missing function/enabled info");
-        return;
-    }
-
-    if (!strcmp(function, "usb_mass_storage")) {
-        bool oldAvailable = massStorageAvailable();
-        mUsbMassStorageEnabled = !strcmp(enabled, "1");
-        SLOGD("usb_mass_storage function %s", mUsbMassStorageEnabled ? "enabled" : "disabled");
-        bool newAvailable = massStorageAvailable();
-        if (newAvailable != oldAvailable) {
-            notifyUmsAvailable(newAvailable);
-        }
-    }
-}
-
 void VolumeManager::handleBlockEvent(NetlinkEvent *evt) {
     const char *devpath = evt->findParam("DEVPATH");
 
@@ -961,17 +874,6 @@ int VolumeManager::listMountedObbs(SocketClient* cli) {
     return 0;
 }
 
-int VolumeManager::shareAvailable(const char *method, bool *avail) {
-
-    if (strcmp(method, "ums")) {
-        errno = ENOSYS;
-        return -1;
-    }
-
-    *avail = massStorageAvailable();
-    return 0;
-}
-
 int VolumeManager::shareEnabled(const char *label, const char *method, bool *enabled) {
     Volume *v = lookupVolume(label);
 
@@ -993,24 +895,6 @@ int VolumeManager::shareEnabled(const char *label, const char *method, bool *ena
     return 0;
 }
 
-int VolumeManager::simulate(const char *cmd, const char *arg) {
-
-    if (!strcmp(cmd, "ums")) {
-        if (!strcmp(arg, "connect")) {
-            notifyUmsAvailable(true);
-        } else if (!strcmp(arg, "disconnect")) {
-            notifyUmsAvailable(false);
-        } else {
-            errno = EINVAL;
-            return -1;
-        }
-    } else {
-        errno = EINVAL;
-        return -1;
-    }
-    return 0;
-}
-
 int VolumeManager::shareVolume(const char *label, const char *method) {
     Volume *v = lookupVolume(label);
 

VolumeManager.h

@@ -59,8 +59,6 @@ class VolumeManager {
 
     VolumeCollection      *mVolumes;
     AsecIdCollection      *mActiveContainers;
-    bool                   mUsbMassStorageEnabled;
-    bool                   mUsbConnected;
     bool                   mDebug;
 
     // for adjusting /proc/sys/vm/dirty_ratio when UMS is active
@@ -75,8 +73,6 @@ class VolumeManager {
     int stop();
 
     void handleBlockEvent(NetlinkEvent *evt);
-    void handleSwitchEvent(NetlinkEvent *evt);
-    void handleUsbCompositeEvent(NetlinkEvent *evt);
 
     int addVolume(Volume *v);
 
@@ -85,9 +81,7 @@ class VolumeManager {
     int unmountVolume(const char *label, bool force);
     int shareVolume(const char *label, const char *method);
     int unshareVolume(const char *label, const char *method);
-    int shareAvailable(const char *method, bool *avail);
     int shareEnabled(const char *path, const char *method, bool *enabled);
-    int simulate(const char *cmd, const char *arg);
     int formatVolume(const char *label);
 
     /* ASEC */
@@ -130,9 +124,6 @@ class VolumeManager {
     VolumeManager();
     void readInitialState();
     bool isMountpointMounted(const char *mp);
-
-    inline bool massStorageAvailable() const { return mUsbMassStorageEnabled && mUsbConnected; }
-    void notifyUmsAvailable(bool available);
 };
 
 extern "C" {