Nathan Hopkins
/
USBJoystick
Important changes to repositories hosted on mbed.com
Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.
To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.
It is also possible to export all your personal repositories from the account settings page.
Fork of
USBJoystick
by 
Wim Huiskamp
Embed:
(wiki syntax)
Show/hide line numbers
USBJoystick.cpp
00001 /* mbed USBJoystick Library 00002 * Copyright (c) 2012, v01: Initial version, WH, 00003 * Modified USBMouse code ARM Limited. 00004 * (c) 2010-2011 mbed.org, MIT License 00005 * 2016, v02: Updated USBDevice Lib, Added waitForConnect, Updated 32 bits button 00006 * 00007 * Permission is hereby granted, free of charge, to any person obtaining a copy 00008 * of this software and associated documentation files (the "Software"), to deal 00009 * in the Software without restriction, inclumosig without limitation the rights 00010 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00011 * copies of the Software, and to permit persons to whom the Software is 00012 * furnished to do so, subject to the following conditions: 00013 * 00014 * The above copyright notice and this permission notice shall be included in 00015 * all copies or substantial portions of the Software. 00016 * 00017 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00018 * IMPLIED, INCLUmosiG BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00019 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00020 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00021 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00022 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00023 * THE SOFTWARE. 00024 */ 00025 00026 00027 #include "stdint.h" 00028 #include "USBJoystick.h" 00029 00030 bool USBJoystick::update(int16_t x, int16_t y, int16_t z, int16_t rx, int16_t ry, int16_t rz, uint32_t buttons, uint8_t hat) { 00031 00032 _x = x; 00033 _y = y; 00034 _z = z; 00035 _rx = rx; 00036 _ry = ry; 00037 _rz = rz; 00038 _buttons = buttons; 00039 _hat = hat; 00040 00041 return update(); 00042 } 00043 00044 bool USBJoystick::update() { 00045 HID_REPORT report; 00046 00047 // Fill the report according to the Joystick Descriptor 00048 report.data[0] = _x & 0xff; 00049 report.data[1] = (_x >> 8) & 0xff; 00050 report.data[2] = _y & 0xff; 00051 report.data[3] = (_y >> 8) & 0xff; 00052 report.data[4] = _z & 0xff; 00053 report.data[5] = (_z >> 8) & 0xff; 00054 report.data[6] = _rx & 0xff; 00055 report.data[7] = (_rx >> 8) & 0xff; 00056 report.data[8] = _ry & 0xff; 00057 report.data[9] = (_ry >> 8) & 0xff; 00058 report.data[10] = _rz & 0xff; 00059 report.data[11] = (_rz >> 8) & 0xff; 00060 00061 #if (BUTTONS4 == 1) 00062 //Hat and 4 Buttons 00063 // report.data[4] = ((_buttons & 0x0f) << 4) | (_hat & 0x0f) ; 00064 // report.length = 5; 00065 00066 00067 //Use 4 bit padding for hat4 or hat8 00068 report.data[12] = (_hat & 0x0f) ; 00069 00070 //Use 4 bit padding for buttons 00071 report.data[13] = (_buttons & 0x0f) ; 00072 report.length = 8; 00073 #endif 00074 00075 #if (BUTTONS8 == 1) 00076 //Hat and first 4 Buttons 00077 // report.data[4] = ((_buttons & 0x0f) << 4) | (_hat & 0x0f) ; 00078 // 00079 //Use bit padding for last 4 Buttons 00080 // report.data[5] = (_buttons & 0xf0) >> 4; 00081 // report.length = 6; 00082 00083 //Use 4 bit padding for hat4 or hat8 00084 report.data[12] = (_hat & 0x0f) ; 00085 00086 //Use 8 bits for buttons 00087 report.data[13] = (_buttons & 0xff) ; 00088 report.length = 8; 00089 #endif 00090 00091 #if (BUTTONS32 == 1) 00092 //Use 4 bit padding for hat4 or hat8 00093 report.data[12] = (_hat & 0x0f) ; 00094 00095 //No bit padding for 32 buttons 00096 report.data[13] = (_buttons >> 0) & 0xff; 00097 report.data[14] = (_buttons >> 8) & 0xff; 00098 report.data[15] = (_buttons >> 16) & 0xff; 00099 report.data[16] = (_buttons >> 24) & 0xff; 00100 report.length = 17; 00101 #endif 00102 00103 return send(&report); 00104 } 00105 00106 bool USBJoystick::move(int16_t x, int16_t y, int16_t z, int16_t rx, int16_t ry, int16_t rz) { 00107 _x = x; 00108 _y = y; 00109 _z = z; 00110 _rx = rx; 00111 _ry = ry; 00112 _rz = rz; 00113 return update(); 00114 } 00115 00116 bool USBJoystick::buttons(uint32_t buttons) { 00117 _buttons = buttons; 00118 return update(); 00119 } 00120 00121 bool USBJoystick::hat(uint8_t hat) { 00122 _hat = hat; 00123 return update(); 00124 } 00125 00126 void USBJoystick::_init() { 00127 _x = 0x0000; 00128 _y = 0x0000; 00129 _z = 0x0000; 00130 _rx = 0x0000; 00131 _ry = 0x0000; 00132 _rz = 0x0000; 00133 _buttons = 0x00000000; 00134 _hat = 0x00; 00135 } 00136 00137 00138 uint8_t * USBJoystick::reportDesc() { 00139 static uint8_t reportDescriptor[] = { 00140 // value in () is the number of bytes. These bytes follow the comma, least significant byte first 00141 // see USBHID_Types.h for more info 00142 USAGE_PAGE(1), 0x01, // Generic Desktop 00143 LOGICAL_MINIMUM(1), 0x00, // Logical_Minimum (0) 00144 USAGE(1), 0x04, // Usage (Joystick) 00145 COLLECTION(1), 0x01, // Application 00146 00147 // 6 Axes of Joystick 00148 USAGE_PAGE(1), 0x01, // Generic Desktop 00149 USAGE(1), 0x01, // Usage (Pointer) 00150 COLLECTION(1), 0x00, // Physical 00151 USAGE(1), 0x30, // X 00152 USAGE(1), 0x31, // Y 00153 USAGE(1), 0x32, // Z 00154 USAGE(1), 0x33, // RX 00155 USAGE(1), 0x34, // RY 00156 USAGE(1), 0x35, // RZ 00157 LOGICAL_MINIMUM(2), 0x00, 0x80, // -32768 (using 2's complement) 00158 LOGICAL_MAXIMUM(2), 0xff, 0x7f, // 32767 (0x7fff, least significant byte first) 00159 REPORT_SIZE(1), 0x10, // REPORT_SIZE describes the number of bits in this element (16, in this case) 00160 REPORT_COUNT(1), 0x06, 00161 INPUT(1), 0x02, // Data, Variable, Absolute 00162 END_COLLECTION(0), 00163 00164 #if (HAT4 == 1) 00165 // 4 Position Hat Switch 00166 USAGE(1), 0x39, // Usage (Hat switch) 00167 LOGICAL_MINIMUM(1), 0x00, // 0 00168 LOGICAL_MAXIMUM(1), 0x03, // 3 00169 PHYSICAL_MINIMUM(1), 0x00, // Physical_Minimum (0) 00170 PHYSICAL_MAXIMUM(2), 0x0E, 0x01, // Physical_Maximum (270) 00171 UNIT(1), 0x14, // Unit (Eng Rot:Angular Pos) 00172 REPORT_SIZE(1), 0x04, 00173 REPORT_COUNT(1), 0x01, 00174 INPUT(1), 0x02, // Data, Variable, Absolute 00175 #endif 00176 #if (HAT8 == 1) 00177 // 8 Position Hat Switch 00178 USAGE(1), 0x39, // Usage (Hat switch) 00179 LOGICAL_MINIMUM(1), 0x00, // 0 00180 LOGICAL_MAXIMUM(1), 0x07, // 7 00181 PHYSICAL_MINIMUM(1), 0x00, // Physical_Minimum (0) 00182 PHYSICAL_MAXIMUM(2), 0x3B, 0x01, // Physical_Maximum (45 deg x (max of)7 = 315) 00183 UNIT(1), 0x14, // Unit (Eng Rot:Angular Pos) 00184 REPORT_SIZE(1), 0x04, 00185 REPORT_COUNT(1), 0x01, 00186 INPUT(1), 0x02, // Data, Variable, Absolute 00187 #endif 00188 00189 // Padding 4 bits 00190 REPORT_SIZE(1), 0x01, 00191 REPORT_COUNT(1), 0x04, 00192 INPUT(1), 0x01, // Constant 00193 00194 00195 #if (BUTTONS4 == 1) 00196 // 4 Buttons 00197 USAGE_PAGE(1), 0x09, // Buttons 00198 USAGE_MINIMUM(1), 0x01, // 1 00199 USAGE_MAXIMUM(1), 0x04, // 4 00200 LOGICAL_MINIMUM(1), 0x00, // 0 00201 LOGICAL_MAXIMUM(1), 0x01, // 1 00202 REPORT_SIZE(1), 0x01, 00203 REPORT_COUNT(1), 0x04, 00204 UNIT_EXPONENT(1), 0x00, // Unit_Exponent (0) 00205 UNIT(1), 0x00, // Unit (None) 00206 INPUT(1), 0x02, // Data, Variable, Absolute 00207 00208 // Padding 4 bits 00209 REPORT_SIZE(1), 0x01, 00210 REPORT_COUNT(1), 0x04, 00211 INPUT(1), 0x01, // Constant 00212 00213 #endif 00214 #if (BUTTONS8 == 1) 00215 // 8 Buttons 00216 USAGE_PAGE(1), 0x09, // Buttons 00217 USAGE_MINIMUM(1), 0x01, // 1 00218 USAGE_MAXIMUM(1), 0x08, // 8 00219 LOGICAL_MINIMUM(1), 0x00, // 0 00220 LOGICAL_MAXIMUM(1), 0x01, // 1 00221 REPORT_SIZE(1), 0x01, 00222 REPORT_COUNT(1), 0x08, 00223 UNIT_EXPONENT(1), 0x00, // Unit_Exponent (0) 00224 UNIT(1), 0x00, // Unit (None) 00225 INPUT(1), 0x02, // Data, Variable, Absolute 00226 #endif 00227 00228 #if (BUTTONS32 == 1) 00229 // 32 Buttons 00230 USAGE_PAGE(1), 0x09, // Buttons 00231 USAGE_MINIMUM(1), 0x01, // 1 00232 USAGE_MAXIMUM(1), 0x20, // 32 00233 LOGICAL_MINIMUM(1), 0x00, // 0 00234 LOGICAL_MAXIMUM(1), 0x01, // 1 00235 REPORT_SIZE(1), 0x01, 00236 REPORT_COUNT(1), 0x20, 00237 UNIT_EXPONENT(1), 0x00, // Unit_Exponent (0) 00238 UNIT(1), 0x00, // Unit (None) 00239 INPUT(1), 0x02, // Data, Variable, Absolute 00240 #endif 00241 00242 END_COLLECTION(0) 00243 }; 00244 00245 reportLength = sizeof(reportDescriptor); 00246 return reportDescriptor; 00247 }
Generated on Mon Jul 18 2022 19:47:44 by
1.7.2