Xinyuan Xu / bit_board_backup

Dependencies:   microbit

BLE_HID/JoystickService.h@1:032b96b05e51, 2019-06-12 (annotated)

Committer:
xx316
Date:
Wed Jun 12 15:21:01 2019 +0000
Revision:
1:032b96b05e51
for demo on Thursday;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
xx316 1:032b96b05e51 1 /* mbed Microcontroller Library
xx316 1:032b96b05e51 2 * Copyright (c) 2015 ARM Limited
xx316 1:032b96b05e51 3 *
xx316 1:032b96b05e51 4 * Licensed under the Apache License, Version 2.0 (the "License");
xx316 1:032b96b05e51 5 * you may not use this file except in compliance with the License.
xx316 1:032b96b05e51 6 * You may obtain a copy of the License at
xx316 1:032b96b05e51 7 *
xx316 1:032b96b05e51 8 * http://www.apache.org/licenses/LICENSE-2.0
xx316 1:032b96b05e51 9 *
xx316 1:032b96b05e51 10 * Unless required by applicable law or agreed to in writing, software
xx316 1:032b96b05e51 11 * distributed under the License is distributed on an "AS IS" BASIS,
xx316 1:032b96b05e51 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
xx316 1:032b96b05e51 13 * See the License for the specific language governing permissions and
xx316 1:032b96b05e51 14 * limitations under the License.
xx316 1:032b96b05e51 15 */
xx316 1:032b96b05e51 16
xx316 1:032b96b05e51 17 #include "mbed.h"
xx316 1:032b96b05e51 18
xx316 1:032b96b05e51 19 #include "HIDServiceBase.h"
xx316 1:032b96b05e51 20
xx316 1:032b96b05e51 21 enum ButtonState
xx316 1:032b96b05e51 22 {
xx316 1:032b96b05e51 23 BUTTON_UP,
xx316 1:032b96b05e51 24 BUTTON_DOWN
xx316 1:032b96b05e51 25 };
xx316 1:032b96b05e51 26
xx316 1:032b96b05e51 27 enum JoystickButton
xx316 1:032b96b05e51 28 {
xx316 1:032b96b05e51 29 JOYSTICK_BUTTON_1 = 0x1,
xx316 1:032b96b05e51 30 JOYSTICK_BUTTON_2 = 0x2,
xx316 1:032b96b05e51 31 };
xx316 1:032b96b05e51 32
xx316 1:032b96b05e51 33 report_map_t JOYSTICK_REPORT_MAP = {
xx316 1:032b96b05e51 34 USAGE_PAGE(1), 0x01, // Generic Desktop
xx316 1:032b96b05e51 35 USAGE(1), 0x04, // Joystick
xx316 1:032b96b05e51 36 COLLECTION(1), 0x01, // Application
xx316 1:032b96b05e51 37 COLLECTION(1), 0x00, // Physical
xx316 1:032b96b05e51 38 USAGE_PAGE(1), 0x09, // Buttons
xx316 1:032b96b05e51 39 USAGE_MINIMUM(1), 0x01,
xx316 1:032b96b05e51 40 USAGE_MAXIMUM(1), 0x03,
xx316 1:032b96b05e51 41 LOGICAL_MINIMUM(1), 0x00,
xx316 1:032b96b05e51 42 LOGICAL_MAXIMUM(1), 0x01,
xx316 1:032b96b05e51 43 REPORT_COUNT(1), 0x03, // 2 bits (Buttons)
xx316 1:032b96b05e51 44 REPORT_SIZE(1), 0x01,
xx316 1:032b96b05e51 45 INPUT(1), 0x02, // Data, Variable, Absolute
xx316 1:032b96b05e51 46 REPORT_COUNT(1), 0x01, // 6 bits (Padding)
xx316 1:032b96b05e51 47 REPORT_SIZE(1), 0x05,
xx316 1:032b96b05e51 48 INPUT(1), 0x01, // Constant
xx316 1:032b96b05e51 49 USAGE_PAGE(1), 0x01, // Generic Desktop
xx316 1:032b96b05e51 50 USAGE(1), 0x30, // X
xx316 1:032b96b05e51 51 USAGE(1), 0x31, // Y
xx316 1:032b96b05e51 52 USAGE(1), 0x32, // Z
xx316 1:032b96b05e51 53 USAGE(1), 0x33, // Rx
xx316 1:032b96b05e51 54 LOGICAL_MINIMUM(1), 0x81, // -127
xx316 1:032b96b05e51 55 LOGICAL_MAXIMUM(1), 0x7f, // 127
xx316 1:032b96b05e51 56 REPORT_SIZE(1), 0x08, // Three bytes
xx316 1:032b96b05e51 57 REPORT_COUNT(1), 0x04,
xx316 1:032b96b05e51 58 INPUT(1), 0x02, // Data, Variable, Absolute (unlike mouse)
xx316 1:032b96b05e51 59 END_COLLECTION(0),
xx316 1:032b96b05e51 60 END_COLLECTION(0),
xx316 1:032b96b05e51 61 };
xx316 1:032b96b05e51 62
xx316 1:032b96b05e51 63 uint8_t report[] = { 0, 0, 0, 0, 0 };
xx316 1:032b96b05e51 64
xx316 1:032b96b05e51 65 class JoystickService: public HIDServiceBase
xx316 1:032b96b05e51 66 {
xx316 1:032b96b05e51 67 public:
xx316 1:032b96b05e51 68 JoystickService(BLE &_ble) :
xx316 1:032b96b05e51 69 HIDServiceBase(_ble,
xx316 1:032b96b05e51 70 JOYSTICK_REPORT_MAP, sizeof(JOYSTICK_REPORT_MAP),
xx316 1:032b96b05e51 71 inputReport = report,
xx316 1:032b96b05e51 72 outputReport = NULL,
xx316 1:032b96b05e51 73 featureReport = NULL,
xx316 1:032b96b05e51 74 inputReportLength = sizeof(inputReport),
xx316 1:032b96b05e51 75 outputReportLength = 0,
xx316 1:032b96b05e51 76 featureReportLength = 0,
xx316 1:032b96b05e51 77 reportTickerDelay = 20),
xx316 1:032b96b05e51 78 buttonsState (0),
xx316 1:032b96b05e51 79 failedReports (0)
xx316 1:032b96b05e51 80 {
xx316 1:032b96b05e51 81 speed[0] = 0;
xx316 1:032b96b05e51 82 speed[1] = 0;
xx316 1:032b96b05e51 83 speed[2] = 0;
xx316 1:032b96b05e51 84 speed[3] = 0;
xx316 1:032b96b05e51 85
xx316 1:032b96b05e51 86 startReportTicker();
xx316 1:032b96b05e51 87 }
xx316 1:032b96b05e51 88
xx316 1:032b96b05e51 89 int setSpeed(int8_t x, int8_t y, int8_t z)
xx316 1:032b96b05e51 90 {
xx316 1:032b96b05e51 91 speed[0] = x;
xx316 1:032b96b05e51 92 speed[1] = y;
xx316 1:032b96b05e51 93 speed[2] = z;
xx316 1:032b96b05e51 94
xx316 1:032b96b05e51 95 return 0;
xx316 1:032b96b05e51 96 }
xx316 1:032b96b05e51 97
xx316 1:032b96b05e51 98 int setButton(JoystickButton button, ButtonState state)
xx316 1:032b96b05e51 99 {
xx316 1:032b96b05e51 100 if (state == BUTTON_UP)
xx316 1:032b96b05e51 101 buttonsState &= ~(button);
xx316 1:032b96b05e51 102 else
xx316 1:032b96b05e51 103 buttonsState |= button;
xx316 1:032b96b05e51 104
xx316 1:032b96b05e51 105 return 0;
xx316 1:032b96b05e51 106 }
xx316 1:032b96b05e51 107
xx316 1:032b96b05e51 108 virtual void sendCallback(void) {
xx316 1:032b96b05e51 109 if (!connected)
xx316 1:032b96b05e51 110 return;
xx316 1:032b96b05e51 111
xx316 1:032b96b05e51 112 report[0] = buttonsState & 0x7;
xx316 1:032b96b05e51 113 report[1] = speed[0];
xx316 1:032b96b05e51 114 report[2] = speed[1];
xx316 1:032b96b05e51 115 report[3] = speed[2];
xx316 1:032b96b05e51 116 report[4] = speed[3];
xx316 1:032b96b05e51 117
xx316 1:032b96b05e51 118 if (send(report))
xx316 1:032b96b05e51 119 failedReports++;
xx316 1:032b96b05e51 120 }
xx316 1:032b96b05e51 121
xx316 1:032b96b05e51 122 protected:
xx316 1:032b96b05e51 123 uint8_t buttonsState;
xx316 1:032b96b05e51 124 uint8_t speed[4];
xx316 1:032b96b05e51 125
xx316 1:032b96b05e51 126 public:
xx316 1:032b96b05e51 127 uint32_t failedReports;
xx316 1:032b96b05e51 128 };
xx316 1:032b96b05e51 129