Diff: USBJoystick/USBJoystick.cpp

Revision:

0:9f5a70453c7c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBJoystick/USBJoystick.cpp	Thu Mar 05 20:57:25 2020 +0000
@@ -0,0 +1,100 @@
+/* mbed USBJoystick Library
+ * Copyright (c) 2012, v01:  Initial version, WH,
+ *                           Modified USBMouse code ARM Limited.
+ *                           (c) 2010-2011 mbed.org, MIT License
+ *               2016, v02:  Updated USBDevice Lib, Added waitForConnect, Updated 32 bits button 
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, inclumosig without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUmosiG BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+#include "stdint.h"
+#include "USBJoystick.h"
+
+bool USBJoystick::update(int16_t x, int16_t y, int16_t rx, int16_t ry) {
+
+   _x = x;
+   _y = y;   
+   _rx = rx;
+   _ry = ry;
+
+   return update();
+}
+ 
+bool USBJoystick::update() {
+   HID_REPORT report;
+
+   // Fill the report according to the Joystick Descriptor
+   report.data[0] = _x & 0xff;
+   report.data[1] = (_x >> 8) & 0xff;
+   report.data[2] = _y & 0xff;
+   report.data[3] = (_y >> 8) & 0xff;
+   report.data[4] = _rx & 0xff;
+   report.data[5] = (_rx >> 8) & 0xff;
+   report.data[6] = _ry & 0xff;
+   report.data[7] = (_ry >> 8) & 0xff;
+   report.length = 8;
+
+   return send(&report);
+}
+
+bool USBJoystick::move(int16_t x, int16_t y, int16_t rx, int16_t ry) {
+   _x = x;
+   _y = y;
+   _rx = rx;
+   _ry = ry;
+   return update();
+}
+
+void USBJoystick::_init() {
+   _x = 0x0000;
+   _y = 0x0000;
+   _rx = 0x0000;
+   _ry = 0x0000;
+}
+
+
+uint8_t * USBJoystick::reportDesc() {    
+         static uint8_t reportDescriptor[] = {
+            // value in () is the number of bytes.  These bytes follow the comma, least significant byte first
+            // see USBHID_Types.h for more info
+             USAGE_PAGE(1), 0x01,           // Generic Desktop                 
+             USAGE(1), 0x04,                // Usage (Joystick)
+             COLLECTION(1), 0x01,           // Application
+             
+// 6 Axes of Joystick
+               USAGE_PAGE(1), 0x01,            // Generic Desktop
+               USAGE(1), 0x01,                 // Usage (Pointer)
+               COLLECTION(1), 0x00,            // Physical
+                 USAGE(1), 0x30,                 // X
+                 USAGE(1), 0x31,                 // Y
+                 USAGE(1), 0x33,                 // RX
+                 USAGE(1), 0x34,                 // RY
+                 LOGICAL_MINIMUM(2), 0x00, 0x80, // -32768 (using 2's complement)
+                 LOGICAL_MAXIMUM(2), 0xff, 0x7f, // 32767 (0x7fff, least significant byte first)
+                 REPORT_SIZE(1), 0x10,  // REPORT_SIZE describes the number of bits in this element (16, in this case)
+                 REPORT_COUNT(1), 0x04,
+                 INPUT(1), 0x02,                 // Data, Variable, Absolute                
+               END_COLLECTION(0),
+             END_COLLECTION(0)
+      };
+
+      reportLength = sizeof(reportDescriptor);
+      return reportDescriptor;
+}