nikos chalikias / Mbed 2 deprecated n-bed-USBHostC270_example

testing n-Bed with a Logitech C270 camera

Dependencies:   USBHost mbed

Fork of USBHostC270_example by Norimasa Okamoto

USBHostC270/USBHostC270.h@14:449f809d07eb, 2015-05-21 (annotated)

Committer:
chalikias
Date:
Thu May 21 11:59:47 2015 +0000
Revision:
14:449f809d07eb
Parent:
10:387c49b2fc7e 
camera resolution reduced to 160x120, else memory overflow issues...

Who changed what in which revision?

UserRevisionLine numberNew contents of line
va009039 9:fecabade834a 1 #include "USBHostConf.h"
va009039 9:fecabade834a 2 #include "USBHost.h"
va009039 9:fecabade834a 3 #include "BaseUvc.h"
va009039 10:387c49b2fc7e 4 #include "decodeMJPEG.h"
va009039 9:fecabade834a 5
va009039 10:387c49b2fc7e 6 // Logitech C270
va009039 9:fecabade834a 7 #define C270_VID 0x046d
va009039 9:fecabade834a 8 #define C270_PID 0x0825
va009039 9:fecabade834a 9 #define C270_160x120 2
va009039 9:fecabade834a 10 #define C270_176x144 3
va009039 9:fecabade834a 11 #define C270_320x176 4
va009039 9:fecabade834a 12 #define C270_320x240 5
va009039 9:fecabade834a 13 #define C270_352x288 6
va009039 9:fecabade834a 14 #define C270_432x240 7
va009039 9:fecabade834a 15 #define C270_640x480 1
va009039 9:fecabade834a 16 #define C270_544x288 8
va009039 9:fecabade834a 17 #define C270_640x360 9
va009039 9:fecabade834a 18 #define C270_752x416 10
va009039 9:fecabade834a 19 #define C270_800x448 11
va009039 9:fecabade834a 20 #define C270_800x600 12
va009039 9:fecabade834a 21
va009039 9:fecabade834a 22 #define C270_MJPEG 2
va009039 9:fecabade834a 23 #define C270_YUV2 1
va009039 9:fecabade834a 24
va009039 9:fecabade834a 25 #define C270_EN 0x81
va009039 9:fecabade834a 26 #define C270_MPS 192
va009039 9:fecabade834a 27 #define C270_IF_ALT 1
va009039 9:fecabade834a 28
va009039 9:fecabade834a 29 #define TEST_ASSERT(A) while(!(A)){fprintf(stderr,"\n\n%s@%d %s ASSERT!\n\n",__PRETTY_FUNCTION__,__LINE__,#A);exit(1);};
va009039 9:fecabade834a 30
va009039 9:fecabade834a 31 class IsochronousEp;
va009039 9:fecabade834a 32 class BaseUvc;
va009039 9:fecabade834a 33 /**
va009039 9:fecabade834a 34 * A class to communicate a C270
va009039 9:fecabade834a 35 */
va009039 10:387c49b2fc7e 36 class USBHostC270 : public IUSBEnumerator, public BaseUvc, public decodeMJPEG {
va009039 9:fecabade834a 37 public:
va009039 9:fecabade834a 38 /**
va009039 9:fecabade834a 39 * Constructor
va009039 9:fecabade834a 40 *
va009039 9:fecabade834a 41 */
va009039 9:fecabade834a 42 USBHostC270(int formatIndex = C270_MJPEG, int frameIndex = C270_160x120, uint32_t interval = _5FPS);
va009039 9:fecabade834a 43
va009039 9:fecabade834a 44 /**
va009039 9:fecabade834a 45 * Check if a C270 device is connected
va009039 9:fecabade834a 46 *
va009039 9:fecabade834a 47 * @return true if a MSD device is connected
va009039 9:fecabade834a 48 */
va009039 9:fecabade834a 49 bool connected();
va009039 9:fecabade834a 50
va009039 9:fecabade834a 51 /**
va009039 9:fecabade834a 52 * Try to connect to a C270 device
va009039 9:fecabade834a 53 *
va009039 9:fecabade834a 54 * @return true if connection was successful
va009039 9:fecabade834a 55 */
va009039 9:fecabade834a 56 bool connect();
va009039 9:fecabade834a 57
va009039 10:387c49b2fc7e 58 /**
va009039 10:387c49b2fc7e 59 * read jpeg image
va009039 10:387c49b2fc7e 60 *
va009039 10:387c49b2fc7e 61 * @param buf read buffer
va009039 10:387c49b2fc7e 62 * @param size buffer size
va009039 10:387c49b2fc7e 63 * @param timeout_ms timeout default 15sec
va009039 10:387c49b2fc7e 64 * @return jpeg size if read success else -1
va009039 10:387c49b2fc7e 65 */
va009039 10:387c49b2fc7e 66 int readJPEG(uint8_t* buf, int size, int timeout_ms = 15*1000);
va009039 10:387c49b2fc7e 67
va009039 9:fecabade834a 68 protected:
va009039 9:fecabade834a 69 //From IUSBEnumerator
va009039 9:fecabade834a 70 virtual void setVidPid(uint16_t vid, uint16_t pid);
va009039 9:fecabade834a 71 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
va009039 9:fecabade834a 72 virtual bool useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir); //Must return true if the endpoint will be used
va009039 9:fecabade834a 73
va009039 9:fecabade834a 74 private:
va009039 9:fecabade834a 75 bool dev_connected;
va009039 9:fecabade834a 76
va009039 9:fecabade834a 77 int c270_intf;
va009039 9:fecabade834a 78 bool c270_device_found;
va009039 9:fecabade834a 79 bool c270_vid_pid_found;
va009039 9:fecabade834a 80 int _formatIndex;
va009039 9:fecabade834a 81 int _frameIndex;
va009039 9:fecabade834a 82 uint32_t _interval;
va009039 10:387c49b2fc7e 83 uint8_t _seq;
va009039 10:387c49b2fc7e 84 uint8_t* _buf;
va009039 10:387c49b2fc7e 85 int _pos;
va009039 10:387c49b2fc7e 86 int _size;
va009039 9:fecabade834a 87
va009039 10:387c49b2fc7e 88 virtual void outputJPEG(uint8_t c, int status); // from decodeMJPEG
va009039 10:387c49b2fc7e 89 void callback_motion_jpeg(uint16_t frame, uint8_t* buf, int len);
va009039 9:fecabade834a 90 void init();
va009039 10:387c49b2fc7e 91 void onDisconnect();
va009039 9:fecabade834a 92 };