Diff: USBHostHID/USBHostMouse.cpp

Revision:

0:148fca6fd246

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBHostHID/USBHostMouse.cpp	Fri Apr 25 05:18:55 2014 +0000
@@ -0,0 +1,144 @@
+/* mbed USBHost Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "USBHostMouse.h"
+
+#if USBHOST_MOUSE
+
+USBHostMouse::USBHostMouse() {
+    host = USBHost::getHostInst();
+    init();
+}
+
+void USBHostMouse::init() {
+    dev = NULL;
+    int_in = NULL;
+    onUpdate = NULL;
+    onButtonUpdate = NULL;
+    onXUpdate = NULL;
+    onYUpdate = NULL;
+    onZUpdate = NULL;
+    report_id = 0;
+    dev_connected = false;
+    mouse_device_found = false;
+    mouse_intf = -1;
+    
+    buttons = 0;
+    x = 0;
+    y = 0;
+    z = 0;
+}
+
+bool USBHostMouse::connected() {
+    return dev_connected;
+}
+
+bool USBHostMouse::connect() {
+
+    if (dev_connected) {
+        return true;
+    }
+    
+    for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) {
+        if ((dev = host->getDevice(i)) != NULL) {
+
+            if(host->enumerate(dev, this))
+                break;
+            
+            if (mouse_device_found) {
+                
+                int_in = dev->getEndpoint(mouse_intf, INTERRUPT_ENDPOINT, IN);
+                if (!int_in)
+                    break;
+                
+                USB_INFO("New Mouse device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, mouse_intf);
+                dev->setName("Mouse", mouse_intf);
+                host->registerDriver(dev, mouse_intf, this, &USBHostMouse::init);
+                
+                int_in->attach(this, &USBHostMouse::rxHandler);
+                host->interruptRead(dev, int_in, report, int_in->getSize(), false);
+                
+                dev_connected = true;
+                return true;
+            }
+        }
+    }
+    init();
+    return false;
+}
+
+void USBHostMouse::rxHandler() {
+    int len_listen = int_in->getSize();
+    
+    if (onUpdate) {
+        (*onUpdate)(report[0] & 0x07, report[1], report[2], report[3]);
+    }
+    
+    if (onButtonUpdate && (buttons != (report[0] & 0x07))) {
+        (*onButtonUpdate)(report[0] & 0x07);
+    }
+    
+    if (onXUpdate && (x != report[1])) {
+        (*onXUpdate)(report[1]);
+    }
+    
+    if (onYUpdate && (y != report[2])) {
+        (*onYUpdate)(report[2]);
+    }
+    
+    if (onZUpdate && (z != report[3])) {
+        (*onZUpdate)(report[3]);
+    }
+        
+    // update mouse state
+    buttons = report[0] & 0x07;
+    x = report[1];
+    y = report[2];
+    z = report[3];
+    
+    if (dev)
+        host->interruptRead(dev, int_in, report, len_listen, false);
+}
+
+/*virtual*/ void USBHostMouse::setVidPid(uint16_t vid, uint16_t pid)
+{
+    // we don't check VID/PID for mouse driver
+}
+
+/*virtual*/ bool USBHostMouse::parseInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol) //Must return true if the interface should be parsed
+{
+    if ((mouse_intf == -1) &&
+        (intf_class == HID_CLASS) &&
+        (intf_subclass == 0x01) &&
+        (intf_protocol == 0x02)) {
+        mouse_intf = intf_nb;
+        return true;
+    }
+    return false;
+}
+
+/*virtual*/ bool USBHostMouse::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used
+{
+    if (intf_nb == mouse_intf) {
+        if (type == INTERRUPT_ENDPOINT && dir == IN) {
+            mouse_device_found = true;
+            return true;
+        }
+    }
+    return false;
+}
+
+#endif