supported GR-PEACH original: http://developer.mbed.org/users/va009039/code/USBHostC270_example/ The function of Isochronous has moved to USBHost_AddIso library.
Dependencies: USBHost_custom_Addiso
Fork of USBHostC270_example_GR-PEACH by
USBHostCam.h
00001 // USBHostCam.h 00002 #include "USBHostConf.h" 00003 #include "USBHost.h" 00004 #include "USBIsochronous.h" 00005 #include "BaseUvc.h" 00006 #include "decodeMJPEG.h" 00007 #pragma once 00008 00009 #define _160x120 2 00010 #define _176x144 3 00011 #define _320x176 4 00012 #define _320x240 5 00013 #define _352x288 6 00014 #define _432x240 7 00015 #define _640x480 1 00016 #define _544x288 8 00017 #define _640x360 9 00018 #define _752x416 10 00019 #define _800x448 11 00020 #define _800x600 12 00021 00022 #define TEST_ASSERT(A) while(!(A)){fprintf(stderr,"\n\n%s@%d %s ASSERT!\n\n",__PRETTY_FUNCTION__,__LINE__,#A);exit(1);}; 00023 00024 struct CamInfo { 00025 uint16_t vid; 00026 uint16_t pid; 00027 uint8_t size; 00028 uint8_t option; 00029 // 00030 const char* name; 00031 uint8_t formatIndex; 00032 uint8_t frameIndex; 00033 uint32_t interval; 00034 uint8_t en; 00035 uint8_t mps; 00036 uint8_t if_alt; 00037 uint8_t frameCount; // ITD frame count 1-8 00038 uint8_t queueLimit; // ITD queue limit 1-3 00039 }; 00040 00041 /** 00042 * A class to communicate a Cam 00043 */ 00044 class USBHostCam : public IUSBEnumerator, public BaseUvc, public decodeMJPEG { 00045 public: 00046 /** 00047 * Constructor 00048 * 00049 */ 00050 USBHostCam(uint8_t size = _160x120, uint8_t option = 0, CamInfo* user_caminfo = NULL); 00051 00052 /** 00053 * Check if a Cam device is connected 00054 * 00055 * @return true if a Cam device is connected 00056 */ 00057 bool connected(); 00058 00059 /** 00060 * Try to connect to a Cam device 00061 * 00062 * @return true if connection was successful 00063 */ 00064 bool connect(); 00065 00066 /** 00067 * read jpeg image 00068 * 00069 * @param buf read buffer 00070 * @param size buffer size 00071 * @param timeout_ms timeout default 15sec 00072 * @return jpeg size if read success else -1 00073 */ 00074 int readJPEG(uint8_t* buf, int size, int timeout_ms = 15*1000); 00075 00076 protected: 00077 //From IUSBEnumerator 00078 virtual void setVidPid(uint16_t vid, uint16_t pid); 00079 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 00080 virtual bool useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir); //Must return true if the endpoint will be used 00081 00082 private: 00083 bool dev_connected; 00084 00085 int cam_intf; 00086 bool device_found; 00087 bool caminfo_found; 00088 uint8_t _seq; 00089 uint8_t* _buf; 00090 int _pos; 00091 int _size; 00092 CamInfo* CamInfoList; 00093 CamInfo* caminfo; 00094 uint8_t _caminfo_size; 00095 uint8_t _caminfo_option; 00096 00097 virtual void outputJPEG(uint8_t c, int status); // from decodeMJPEG 00098 void callback_motion_jpeg(uint16_t frame, uint8_t* buf, int len); 00099 void init(); 00100 void onDisconnect(); 00101 };
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