woodstock . / Mbed 2 deprecated Nucleo_Ex04_USBPAD

This example demonstrates the reading of the USB Gamepad in the Nucleo.

Dependencies:   mbed

Intro

This example demonstrates the reading of the USB Gamepad in the Nucleo.

Parts

STM32 Nucleo F446RE
USB Connector
LED 2pcs
Register 470 ohm 2pcs
Breadboard
Wires

Wiring diagram

/media/uploads/beaglescout007/nucleo_ex04_usbpad.png This circuit diagram was created by fritzing.

/media/uploads/beaglescout007/usbcon.jpg

USB con.Nucleo
GNDGND
+PA_12
-PA_11
5V5V

https://youtu.be/EYIukjwJSew

Original Library

USBHost/USBEndpoint.h@0:b5f79b4f741d, 2016-03-15 (annotated)

Committer:
beaglescout007
Date:
Tue Mar 15 11:39:04 2016 +0000
Revision:
0:b5f79b4f741d
Release

Who changed what in which revision?

UserRevisionLine numberNew contents of line
beaglescout007 0:b5f79b4f741d 1 /* mbed USBHost Library
beaglescout007 0:b5f79b4f741d 2 * Copyright (c) 2006-2013 ARM Limited
beaglescout007 0:b5f79b4f741d 3 *
beaglescout007 0:b5f79b4f741d 4 * Licensed under the Apache License, Version 2.0 (the "License");
beaglescout007 0:b5f79b4f741d 5 * you may not use this file except in compliance with the License.
beaglescout007 0:b5f79b4f741d 6 * You may obtain a copy of the License at
beaglescout007 0:b5f79b4f741d 7 *
beaglescout007 0:b5f79b4f741d 8 * http://www.apache.org/licenses/LICENSE-2.0
beaglescout007 0:b5f79b4f741d 9 *
beaglescout007 0:b5f79b4f741d 10 * Unless required by applicable law or agreed to in writing, software
beaglescout007 0:b5f79b4f741d 11 * distributed under the License is distributed on an "AS IS" BASIS,
beaglescout007 0:b5f79b4f741d 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
beaglescout007 0:b5f79b4f741d 13 * See the License for the specific language governing permissions and
beaglescout007 0:b5f79b4f741d 14 * limitations under the License.
beaglescout007 0:b5f79b4f741d 15 */
beaglescout007 0:b5f79b4f741d 16
beaglescout007 0:b5f79b4f741d 17 #pragma once
beaglescout007 0:b5f79b4f741d 18 #include "FunctionPointer.h"
beaglescout007 0:b5f79b4f741d 19 #include "USBHostTypes.h"
beaglescout007 0:b5f79b4f741d 20 #include "USBDeviceConnected.h"
beaglescout007 0:b5f79b4f741d 21
beaglescout007 0:b5f79b4f741d 22 class USBDeviceConnected;
beaglescout007 0:b5f79b4f741d 23
beaglescout007 0:b5f79b4f741d 24 /**
beaglescout007 0:b5f79b4f741d 25 * USBEndpoint class
beaglescout007 0:b5f79b4f741d 26 */
beaglescout007 0:b5f79b4f741d 27 class USBEndpoint {
beaglescout007 0:b5f79b4f741d 28 public:
beaglescout007 0:b5f79b4f741d 29 /**
beaglescout007 0:b5f79b4f741d 30 * Constructor
beaglescout007 0:b5f79b4f741d 31 */
beaglescout007 0:b5f79b4f741d 32 USBEndpoint(USBDeviceConnected* _dev) {
beaglescout007 0:b5f79b4f741d 33 init(CONTROL_ENDPOINT, IN, 8, 0);
beaglescout007 0:b5f79b4f741d 34 dev = _dev;
beaglescout007 0:b5f79b4f741d 35 pData = NULL;
beaglescout007 0:b5f79b4f741d 36 }
beaglescout007 0:b5f79b4f741d 37
beaglescout007 0:b5f79b4f741d 38 /**
beaglescout007 0:b5f79b4f741d 39 * Initialize an endpoint
beaglescout007 0:b5f79b4f741d 40 *
beaglescout007 0:b5f79b4f741d 41 * @param type endpoint type
beaglescout007 0:b5f79b4f741d 42 * @param dir endpoint direction
beaglescout007 0:b5f79b4f741d 43 * @param size endpoint size
beaglescout007 0:b5f79b4f741d 44 * @param ep_number endpoint number
beaglescout007 0:b5f79b4f741d 45 */
beaglescout007 0:b5f79b4f741d 46 void init(ENDPOINT_TYPE _type, ENDPOINT_DIRECTION _dir, uint32_t size, uint8_t ep_number) {
beaglescout007 0:b5f79b4f741d 47 setState(USB_TYPE_FREE);
beaglescout007 0:b5f79b4f741d 48 setType(_type);
beaglescout007 0:b5f79b4f741d 49 dir = _dir;
beaglescout007 0:b5f79b4f741d 50 MaxPacketSize = size;
beaglescout007 0:b5f79b4f741d 51 address = ep_number;
beaglescout007 0:b5f79b4f741d 52 data01_toggle = DATA0;
beaglescout007 0:b5f79b4f741d 53 }
beaglescout007 0:b5f79b4f741d 54
beaglescout007 0:b5f79b4f741d 55 void ohci_init(uint8_t frameCount, uint8_t queueLimit) {
beaglescout007 0:b5f79b4f741d 56 ohci.frameCount = frameCount;
beaglescout007 0:b5f79b4f741d 57 ohci.queueLimit = queueLimit;
beaglescout007 0:b5f79b4f741d 58 }
beaglescout007 0:b5f79b4f741d 59
beaglescout007 0:b5f79b4f741d 60 /**
beaglescout007 0:b5f79b4f741d 61 * Attach a member function to call when a transfer is finished
beaglescout007 0:b5f79b4f741d 62 *
beaglescout007 0:b5f79b4f741d 63 * @param tptr pointer to the object to call the member function on
beaglescout007 0:b5f79b4f741d 64 * @param mptr pointer to the member function to be called
beaglescout007 0:b5f79b4f741d 65 */
beaglescout007 0:b5f79b4f741d 66 template<typename T>
beaglescout007 0:b5f79b4f741d 67 inline void attach(T* tptr, void (T::*mptr)(void)) {
beaglescout007 0:b5f79b4f741d 68 if((mptr != NULL) && (tptr != NULL)) {
beaglescout007 0:b5f79b4f741d 69 rx.attach(tptr, mptr);
beaglescout007 0:b5f79b4f741d 70 }
beaglescout007 0:b5f79b4f741d 71 }
beaglescout007 0:b5f79b4f741d 72
beaglescout007 0:b5f79b4f741d 73 /**
beaglescout007 0:b5f79b4f741d 74 * Attach a callback called when a transfer is finished
beaglescout007 0:b5f79b4f741d 75 *
beaglescout007 0:b5f79b4f741d 76 * @param fptr function pointer
beaglescout007 0:b5f79b4f741d 77 */
beaglescout007 0:b5f79b4f741d 78 inline void attach(void (*fptr)(void)) {
beaglescout007 0:b5f79b4f741d 79 if(fptr != NULL) {
beaglescout007 0:b5f79b4f741d 80 rx.attach(fptr);
beaglescout007 0:b5f79b4f741d 81 }
beaglescout007 0:b5f79b4f741d 82 }
beaglescout007 0:b5f79b4f741d 83
beaglescout007 0:b5f79b4f741d 84 /**
beaglescout007 0:b5f79b4f741d 85 * Call the handler associted to the end of a transfer
beaglescout007 0:b5f79b4f741d 86 */
beaglescout007 0:b5f79b4f741d 87 inline void call() {
beaglescout007 0:b5f79b4f741d 88 rx.call();
beaglescout007 0:b5f79b4f741d 89 };
beaglescout007 0:b5f79b4f741d 90
beaglescout007 0:b5f79b4f741d 91 void setType(ENDPOINT_TYPE _type) { type = _type; }
beaglescout007 0:b5f79b4f741d 92 void setState(USB_TYPE st) { state = st; }
beaglescout007 0:b5f79b4f741d 93 void setDevice(USBDeviceConnected* _dev) { dev = _dev; }
beaglescout007 0:b5f79b4f741d 94 void setBuffer(uint8_t* buf, int size) { buf_start = buf, buf_size = size; }
beaglescout007 0:b5f79b4f741d 95 void setLengthTransferred(int len) { transferred = len; };
beaglescout007 0:b5f79b4f741d 96 void setAddress(int addr) { address = addr; }
beaglescout007 0:b5f79b4f741d 97 void setSize(int size) { MaxPacketSize = size; }
beaglescout007 0:b5f79b4f741d 98 void setData01(uint8_t data01) { data01_toggle = data01; }
beaglescout007 0:b5f79b4f741d 99 void setNextEndpoint(USBEndpoint* ep) { nextEp = ep; };
beaglescout007 0:b5f79b4f741d 100 template<class T>
beaglescout007 0:b5f79b4f741d 101 void setHALData(T data) { pData = data; }
beaglescout007 0:b5f79b4f741d 102
beaglescout007 0:b5f79b4f741d 103 USBDeviceConnected* getDevice() { return dev; }
beaglescout007 0:b5f79b4f741d 104 ENDPOINT_TYPE getType() { return type; };
beaglescout007 0:b5f79b4f741d 105 USB_TYPE getState() { return state; }
beaglescout007 0:b5f79b4f741d 106 int getLengthTransferred() { return transferred; }
beaglescout007 0:b5f79b4f741d 107 uint8_t *getBufStart() { return buf_start; }
beaglescout007 0:b5f79b4f741d 108 int getBufSize() { return buf_size; }
beaglescout007 0:b5f79b4f741d 109 uint8_t getAddress(){ return address; };
beaglescout007 0:b5f79b4f741d 110 int getSize() { return MaxPacketSize; }
beaglescout007 0:b5f79b4f741d 111 ENDPOINT_DIRECTION getDir() { return dir; }
beaglescout007 0:b5f79b4f741d 112 uint8_t getData01() { return data01_toggle; }
beaglescout007 0:b5f79b4f741d 113 void toggleData01() {
beaglescout007 0:b5f79b4f741d 114 data01_toggle = (data01_toggle == DATA0) ? DATA1 : DATA0;
beaglescout007 0:b5f79b4f741d 115 }
beaglescout007 0:b5f79b4f741d 116 USBEndpoint* nextEndpoint() { return nextEp; };
beaglescout007 0:b5f79b4f741d 117 template<class T>
beaglescout007 0:b5f79b4f741d 118 T getHALData() { return reinterpret_cast<T>(pData); }
beaglescout007 0:b5f79b4f741d 119
beaglescout007 0:b5f79b4f741d 120 struct {
beaglescout007 0:b5f79b4f741d 121 uint8_t queueLimit;
beaglescout007 0:b5f79b4f741d 122 uint8_t frameCount; // 1-8
beaglescout007 0:b5f79b4f741d 123 } ohci;
beaglescout007 0:b5f79b4f741d 124 private:
beaglescout007 0:b5f79b4f741d 125 USBEndpoint(){}
beaglescout007 0:b5f79b4f741d 126 ENDPOINT_TYPE type;
beaglescout007 0:b5f79b4f741d 127 USB_TYPE state;
beaglescout007 0:b5f79b4f741d 128 ENDPOINT_DIRECTION dir;
beaglescout007 0:b5f79b4f741d 129 USBDeviceConnected* dev;
beaglescout007 0:b5f79b4f741d 130 uint8_t data01_toggle; // DATA0,DATA1
beaglescout007 0:b5f79b4f741d 131 uint8_t address;
beaglescout007 0:b5f79b4f741d 132 int transferred;
beaglescout007 0:b5f79b4f741d 133 uint8_t * buf_start;
beaglescout007 0:b5f79b4f741d 134 int buf_size;
beaglescout007 0:b5f79b4f741d 135 FunctionPointer rx;
beaglescout007 0:b5f79b4f741d 136 int MaxPacketSize;
beaglescout007 0:b5f79b4f741d 137 USBEndpoint* nextEp;
beaglescout007 0:b5f79b4f741d 138 void* pData;
beaglescout007 0:b5f79b4f741d 139 };
beaglescout007 0:b5f79b4f741d 140
beaglescout007 0:b5f79b4f741d 141 class EndpointQueue {
beaglescout007 0:b5f79b4f741d 142 public:
beaglescout007 0:b5f79b4f741d 143 EndpointQueue():head(NULL),tail(NULL) {}
beaglescout007 0:b5f79b4f741d 144 void push(USBEndpoint* ep) {
beaglescout007 0:b5f79b4f741d 145 if (head) {
beaglescout007 0:b5f79b4f741d 146 tail->setNextEndpoint(ep);
beaglescout007 0:b5f79b4f741d 147 } else {
beaglescout007 0:b5f79b4f741d 148 head = ep;
beaglescout007 0:b5f79b4f741d 149 }
beaglescout007 0:b5f79b4f741d 150 tail = ep;
beaglescout007 0:b5f79b4f741d 151 ep->setNextEndpoint(NULL);
beaglescout007 0:b5f79b4f741d 152 }
beaglescout007 0:b5f79b4f741d 153 USBEndpoint* pop() {
beaglescout007 0:b5f79b4f741d 154 USBEndpoint* ep = head;
beaglescout007 0:b5f79b4f741d 155 if (ep) {
beaglescout007 0:b5f79b4f741d 156 head = ep->nextEndpoint();
beaglescout007 0:b5f79b4f741d 157 }
beaglescout007 0:b5f79b4f741d 158 return ep;
beaglescout007 0:b5f79b4f741d 159 }
beaglescout007 0:b5f79b4f741d 160 bool empty() { return head == NULL; }
beaglescout007 0:b5f79b4f741d 161
beaglescout007 0:b5f79b4f741d 162 private:
beaglescout007 0:b5f79b4f741d 163 USBEndpoint* head;
beaglescout007 0:b5f79b4f741d 164 USBEndpoint* tail;
beaglescout007 0:b5f79b4f741d 165 };
beaglescout007 0:b5f79b4f741d 166
beaglescout007 0:b5f79b4f741d 167
beaglescout007 0:b5f79b4f741d 168