USBHost library with fixes
Dependencies: mbed-rtos FATFileSystem
USBHostKeyboard.h
00001 /* mbed USBHost Library 00002 * Copyright (c) 2006-2013 ARM Limited 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 00017 #ifndef USBHOSTKEYBOARD_H 00018 #define USBHOSTKEYBOARD_H 00019 00020 #include "USBHostConf.h" 00021 00022 #if USBHOST_KEYBOARD 00023 00024 #include "USBHost.h" 00025 00026 /** 00027 * A class to communicate a USB keyboard 00028 */ 00029 class USBHostKeyboard : public IUSBEnumerator { 00030 public: 00031 00032 /** 00033 * Constructor 00034 */ 00035 USBHostKeyboard(); 00036 00037 /** 00038 * Try to connect a keyboard device 00039 * 00040 * @return true if connection was successful 00041 */ 00042 bool connect(); 00043 00044 /** 00045 * Check if a keyboard is connected 00046 * 00047 * @returns true if a keyboard is connected 00048 */ 00049 bool connected(); 00050 00051 /** 00052 * Attach a callback called when a keyboard event is received 00053 * 00054 * @param ptr function pointer 00055 */ 00056 inline void attach(void (*ptr)(uint8_t key)) { 00057 if (ptr != NULL) { 00058 onKey = ptr; 00059 } 00060 } 00061 00062 /** 00063 * Attach a callback called when a keyboard event is received 00064 * 00065 * @param ptr function pointer 00066 */ 00067 inline void attach(void (*ptr)(uint8_t keyCode, uint8_t modifier)) { 00068 if (ptr != NULL) { 00069 onKeyCode = ptr; 00070 } 00071 } 00072 00073 protected: 00074 //From IUSBEnumerator 00075 virtual void setVidPid(uint16_t vid, uint16_t pid); 00076 virtual bool 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 00077 virtual bool useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir); //Must return true if the endpoint will be used 00078 00079 private: 00080 USBHost * host; 00081 USBDeviceConnected * dev; 00082 USBEndpoint * int_in; 00083 uint8_t report[9]; 00084 int keyboard_intf; 00085 bool keyboard_device_found; 00086 00087 bool dev_connected; 00088 00089 void rxHandler(); 00090 00091 void (*onKey)(uint8_t key); 00092 void (*onKeyCode)(uint8_t key, uint8_t modifier); 00093 00094 int report_id; 00095 00096 void init(); 00097 00098 }; 00099 00100 #endif 00101 00102 #endif
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