testing n-Bed with a Logitech C270 camera

Dependencies:   USBHost mbed

Fork of USBHostC270_example by Norimasa Okamoto

Revision:
9:fecabade834a
Child:
10:387c49b2fc7e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBHostC270/USBHostC270.h	Sat Mar 16 13:07:55 2013 +0000
@@ -0,0 +1,105 @@
+#include "USBHostConf.h"
+#include "USBHost.h"
+#include "BaseUvc.h"
+
+#define C270_VID 0x046d
+#define C270_PID 0x0825
+#define C270_160x120 2
+#define C270_176x144 3
+#define C270_320x176 4
+#define C270_320x240 5
+#define C270_352x288 6
+#define C270_432x240 7
+#define C270_640x480 1
+#define C270_544x288 8
+#define C270_640x360 9
+#define C270_752x416 10
+#define C270_800x448 11
+#define C270_800x600 12
+
+#define C270_MJPEG 2
+#define C270_YUV2  1
+
+#define C270_EN  0x81
+#define C270_MPS  192
+#define C270_IF_ALT 1
+
+// --- UVC --------------------------------------------------
+#define _30FPS  333333
+#define _25FPS  400000
+#define _20FPS  500000
+#define _15FPS  666666
+#define _10FPS 1000000
+#define _5FPS  2000000
+#define _1FPS 10000000
+
+#define SET_CUR  0x01
+#define GET_CUR  0x81
+#define GET_MIN  0x82
+#define GET_MAX  0x83
+#define GET_RES  0x84
+#define GET_LEN  0x85
+#define GET_INFO 0x86
+#define GET_DEF  0x87
+
+#define VS_PROBE_CONTROL  0x01
+#define VS_COMMIT_CONTROL 0x02
+
+#define C270_DEBUG 1
+#ifdef C270_DEBUG
+#define C270_DBG(x, ...) std::printf("[%s:%d]"x"\r\n", __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__);
+#else
+#define C270_DBG(...)  while(0);
+#endif
+#define TEST_ASSERT(A) while(!(A)){fprintf(stderr,"\n\n%s@%d %s ASSERT!\n\n",__PRETTY_FUNCTION__,__LINE__,#A);exit(1);};
+
+class IsochronousEp;
+class BaseUvc;
+/** 
+ * A class to communicate a C270
+ */
+class USBHostC270 : public IUSBEnumerator, public BaseUvc {
+public:
+    /**
+    * Constructor
+    *
+    */
+    USBHostC270(int formatIndex = C270_MJPEG, int frameIndex = C270_160x120, uint32_t interval = _5FPS);
+
+    /**
+    * Check if a C270 device is connected
+    *
+    * @return true if a MSD device is connected
+    */
+    bool connected();
+
+    /**
+     * Try to connect to a C270 device
+     *
+     * @return true if connection was successful
+     */
+    bool connect();
+
+protected:
+    //From IUSBEnumerator
+    virtual void setVidPid(uint16_t vid, uint16_t pid);
+    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
+    virtual bool useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir); //Must return true if the endpoint will be used
+
+private:
+    USBHost * host;
+    USBDeviceConnected * dev;
+    bool dev_connected;
+
+    int c270_intf;
+    bool c270_device_found;
+    bool c270_vid_pid_found;
+    int _formatIndex;
+    int _frameIndex;
+    uint32_t _interval;
+
+    void init();
+    USB_TYPE setInterfaceAlternate(uint8_t intf, uint8_t alt);
+    USB_TYPE Control(int req, int cs, int index, uint8_t* buf, int size);
+};
+