Diff: usbbt/usbbt.cpp

Revision:

0:de03cbbcd0ff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbbt/usbbt.cpp	Mon Nov 30 09:32:15 2015 +0000
@@ -0,0 +1,220 @@
+#include "usbbt.h"
+//#define __DEBUG
+#include "mydbg.h"
+#include "Utils.h"
+
+usbbt::usbbt(int dongle)
+    : m_dongle(dongle),m_pEpIntIn(NULL),m_pEpBulkIn(NULL),m_pEpBulkOut(NULL),
+    m_int_seq(0),m_bulk_seq(0)
+{
+
+}
+
+int usbbt::setup(int timeout)
+{
+    for(int i = 0; i < 2; i++) {
+        m_pDev = m_pHost->getDeviceByClass(0xe0, m_dongle); 
+        if (m_pDev || i > 0) {
+            break;
+        }
+        UsbErr rc = Usb_poll();
+        if (rc == USBERR_PROCESSING) {
+            VERBOSE("%p USBERR_PROCESSING\n", this);
+            return -1;
+        }
+    }
+    DBG("m_pDev=%p\n", m_pDev);
+    if (m_pDev == NULL) {
+        VERBOSE("%p Bluetooth dongle(%d) NOT FOUND\n", this, m_dongle);
+        return -1;
+    }
+    DBG_ASSERT(m_pDev);
+
+    ParseConfiguration();
+    return 0;
+}
+
+int usbbt::ParseConfiguration()
+{
+  UsbErr rc;
+  uint8_t ConfigDesc[9];
+  int index = 0;
+  DBG_ASSERT(m_pDev);
+  rc = m_pDev->GetDescriptor(USB_DESCRIPTOR_TYPE_CONFIGURATION, index, ConfigDesc, sizeof(ConfigDesc));
+  DBG_ASSERT(rc == USBERR_OK);
+  DBG_BYTES("ConfigDescriptor 9bytes", ConfigDesc, sizeof(ConfigDesc));
+  DBG_ASSERT(ConfigDesc[0] == 9);
+  DBG_ASSERT(ConfigDesc[1] == 0x02);
+  int wTotalLength = *((uint16_t*)&ConfigDesc[2]);
+  DBG("TotalLength: %d\n", wTotalLength);
+  int bConfigValue = ConfigDesc[5];
+  DBG_ASSERT(bConfigValue == 1);
+  DBG("ConfigValue: %d\n", bConfigValue);
+  VERBOSE("MaxPower: %d mA\n", ConfigDesc[8]*2);   
+
+  uint8_t* buf = new uint8_t[wTotalLength];
+  DBG_ASSERT(buf);
+  rc = m_pDev->GetDescriptor(USB_DESCRIPTOR_TYPE_CONFIGURATION, index, buf, wTotalLength);
+  DBG_ASSERT(rc == USBERR_OK);
+  DBG_ASSERT(ConfigDesc[1] == 0x02);
+  for (int pos = 0; pos < wTotalLength; pos += buf[pos]) {
+      DBG_BYTES("CFG", buf+pos, buf[pos]);
+      int type = buf[pos+1];
+      if (USB_DESCRIPTOR_TYPE_INTERFACE == type) { // 0x04
+        DBG("InterfaceNumber: %d\n", buf[pos+2]);
+        DBG("AlternateSetting: %d\n", buf[pos+3]);
+        DBG("NumEndpoint: %d\n", buf[pos+4]);
+        VERBOSE("InterfaceClass: %02X\n", buf[pos+5]);
+        VERBOSE("InterfaceSubClass: %02X\n", buf[pos+6]);
+        VERBOSE("InterfaceProtocol: %02X\n", buf[pos+7]);
+        DBG_ASSERT(buf[pos+6] == 0x01);
+        DBG_ASSERT(buf[pos+7] == 0x01);
+      } 
+      if (USB_DESCRIPTOR_TYPE_ENDPOINT == type) {
+          DBG_ASSERT(buf[pos] == 7);
+          uint8_t att = buf[pos+3];
+          uint8_t ep = buf[pos+2];
+          bool dir = ep & 0x80; // true=IN
+          uint16_t size = LE16(buf+pos+4);
+          DBG("EndpointAddress: %02X\n", ep);
+          DBG("Attribute: %02X\n", att);
+          DBG("MaxPacketSize: %d\n", size); 
+          UsbEndpoint* pEp = new UsbEndpoint(m_pDev, ep, dir, att == 3 ? USB_INT : USB_BULK, size);
+          DBG_ASSERT(pEp);
+          if (att == 3) { // interrupt
+              if (m_pEpIntIn == NULL) {
+                  m_pEpIntIn = pEp;
+              }
+          } else if (att == 2) { // bulk
+              if (dir) {
+                  if (m_pEpBulkIn == NULL) {
+                      m_pEpBulkIn = pEp;
+                  }
+              } else {
+                  if (m_pEpBulkOut == NULL) {
+                      m_pEpBulkOut = pEp;
+                  }
+              } 
+          }
+      }
+      if (m_pEpIntIn && m_pEpBulkIn && m_pEpBulkOut) { // cut off
+          break;
+      }
+  }
+  delete[] buf;
+  DBG_ASSERT(m_pEpIntIn);
+  DBG_ASSERT(m_pEpBulkIn);
+  DBG_ASSERT(m_pEpBulkOut);
+  return 0;   
+}
+
+int usbbt::send_packet(uint8_t packet_type, uint8_t* packet, int size)
+{
+    //DBG("\npacket_type=%d\n", packet_type);
+    //DBG_HEX(packet, size);
+
+    int rc;
+    switch(packet_type){
+        case HCI_COMMAND_DATA_PACKET:
+            DBG_ASSERT(m_pDev);
+            DBG_BYTES("\nCMD", packet, size);
+            rc = m_pDev->controlSend(
+                    USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_DEVICE, 
+                    0, 0, 0, packet, size);
+            DBG_ASSERT(rc == USBERR_OK);
+            return 0;
+        case HCI_ACL_DATA_PACKET:
+            DBG_ASSERT(m_pEpBulkOut);
+            DBG_BYTES("\nACL", packet, size);
+            rc = m_pEpBulkOut->transfer(packet, size);
+            DBG_ASSERT(rc == USBERR_PROCESSING);
+            while(m_pEpBulkOut->status() == USBERR_PROCESSING){
+                wait_us(1);
+            }
+            return 0;
+        default:
+            DBG_ASSERT(0);
+            return -1;
+    }
+}
+
+
+void usbbt::poll()
+{
+    //DBG("m_int_seq=%d\n", m_int_seq);
+    int rc, len;
+    switch(m_int_seq) {
+        case 0:
+            m_int_seq++;
+            break;
+        case 1:
+            rc = m_pEpIntIn->transfer(m_int_buf, sizeof(m_int_buf));
+            DBG_ASSERT(rc == USBERR_PROCESSING);
+            m_int_seq++;
+            break;
+        case 2:
+            len = m_pEpIntIn->status();
+            if (len == USBERR_PROCESSING) {
+                break;
+            }
+            if (len >= 0) {
+                //DBG("len=%d\n", len);
+                //DBG_HEX(m_int_buf, len);
+                onPacket(HCI_EVENT_PACKET, m_int_buf, len);
+                m_int_seq = 0;
+                break;
+            }
+            DBG_ASSERT(0);
+            break;
+    } 
+
+    switch(m_bulk_seq) {
+        case 0:
+            m_bulk_seq++;
+            break;
+        case 1:
+            rc = m_pEpBulkIn->transfer(m_bulk_buf, sizeof(m_bulk_buf));
+            DBG_ASSERT(rc == USBERR_PROCESSING);
+            m_bulk_seq++;
+            break;
+        case 2:
+            len = m_pEpBulkIn->status();
+            if (len == USBERR_PROCESSING) {
+                break;
+            }
+            if (len >= 0) {
+                //DBG("len=%d\n", len);
+                //DBG_HEX(m_bulk_buf, len);
+                onPacket(HCI_ACL_DATA_PACKET, m_bulk_buf, len);
+                m_bulk_seq = 0;
+                break;
+            }
+            DBG_ASSERT(0);
+            break;
+    } 
+}
+
+void usbbt::onPacket(uint8_t packet_type, uint8_t* packet, uint16_t size)
+{
+  DBG("\npacket_type=%d packet=%p size=%d\n", packet_type, packet, size);
+  DBG_HEX(packet, size);
+
+  if(m_pCbItem && m_pCbMeth)
+    (m_pCbItem->*m_pCbMeth)(packet_type, packet, size);
+  else if(m_pCb)
+    m_pCb(packet_type, packet, size);
+}
+
+void usbbt::setOnPacket( void (*pMethod)(uint8_t, uint8_t*, uint16_t) )
+{
+  m_pCb = pMethod;
+  m_pCbItem = NULL;
+  m_pCbMeth = NULL;
+}
+
+void usbbt::clearOnPacket()
+{
+  m_pCb = NULL;
+  m_pCbItem = NULL;
+  m_pCbMeth = NULL;
+}