Diff: usb/UsbHostMgr2.cpp

Revision:

0:1ed23ab1345f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usb/UsbHostMgr2.cpp	Tue Jun 26 14:27:45 2012 +0000
@@ -0,0 +1,51 @@
+#include "UsbHostMgr.h"
+//#define __DEBUG
+#include "mydbg.h"
+
+UsbDevice* UsbHostMgr::getDeviceByClass(uint8_t IfClass, int count)
+{
+    DBG("IfClass=%02X count=%d\n", IfClass, count);
+    for(int i = 0; i < USB_HOSTMGR_MAX_DEVS; i++) {
+       UsbDevice* dev = m_lpDevices[i];
+       if (dev) {
+           if(dev->m_connected && dev->m_enumerated) {
+               if (dev->m_InterfaceClass == IfClass) { // found
+                   if (count-- <= 0) {
+                       return dev;
+                   }
+               }
+           }
+       }
+    }
+    return NULL;
+}
+
+void UsbHostMgr::onUsbDeviceConnected(int hub, int port)
+{
+  DBG("%p hub=%d port=%d\n", this, hub, port);
+  for(int i = 0; i < USB_HOSTMGR_MAX_DEVS; i++) {
+      UsbDevice* dev = m_lpDevices[i];
+      if (dev) {
+          if (dev->m_hub == hub && dev->m_port == port) { // skip
+              return;
+          }
+      }
+  }
+  
+  int item = devicesCount();
+  DBG_ASSERT(item < USB_HOSTMGR_MAX_DEVS);
+  if( item == USB_HOSTMGR_MAX_DEVS )
+    return; //List full...
+  //Find a free address (not optimized, but not really important)
+  int addr = 1;
+  for(int i = 0; i < item; i++)
+  {
+    DBG_ASSERT(m_lpDevices[i]);
+    addr = MAX( addr, m_lpDevices[i]->m_addr + 1 );
+  }
+  DBG("item=%d addr=%d\n", item, addr);
+  UsbDevice* dev = new UsbDevice( this, hub, port, addr );
+  DBG_ASSERT(dev);
+  dev->m_connected = true;
+  m_lpDevices[item] = dev;
+}