ucam.h

00001 /* 4D Systems uCam serial RAW/JPEG camera library
00002  * Copyright (c) 2011, Noriaki Mitsunaga
00003  *
00004  * Permission is hereby granted, free of charge, to any person obtaining a copy
00005  * of this software and associated documentation files (the "Software"), to deal
00006  * in the Software without restriction, including without limitation the rights
00007  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00008  * copies of the Software, and to permit persons to whom the Software is
00009  * furnished to do so, subject to the following conditions:
00010  *
00011  * The above copyright notice and this permission notice shall be included in
00012  * all copies or substantial portions of the Software.
00013  *
00014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00017  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00018  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00019  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00020  * THE SOFTWARE.
00021  */
00022 #ifndef __UCAM_H__
00023 #define __UCAM_H__
00024 
00025 #include "mbed.h"
00026 
00027 #define UCAM_COLOR_TYPE_2BITG  0x1
00028 #define UCAM_COLOR_TYPE_4BITG  0x2
00029 #define UCAM_COLOR_TYPE_8BITG  0x3
00030 #define UCAM_COLOR_TYPE_RGB332 0x4
00031 #define UCAM_COLOR_TYPE_RGB444 0x5
00032 #define UCAM_COLOR_TYPE_RGB565 0x6
00033 #define UCAM_COLOR_TYPE_JPEG   0x7
00034 
00035 #define UCAM_RAW_RESOLUTION_80X60   0x1
00036 #define UCAM_RAW_RESOLUTION_160X120 0x3
00037 #define UCAM_RAW_RESOLUTION_320X240 0x5
00038 #define UCAM_RAW_RESOLUTION_640X480 0x7
00039 #define UCAM_RAW_RESOLUTION_128x128 0x9
00040 #define UCAM_RAW_RESOLUTION_128x96  0xB
00041 
00042 const int ucam_raw_resolution_w[] = {80, 160, 320, 640, 128, 128};
00043 const int ucam_raw_resolution_h[] = {60, 120, 240, 480, 128, 96};
00044 
00045 #define UCAM_JPEG_RESOLUTION_80X64   0x1
00046 #define UCAM_JPEG_RESOLUTION_160X128 0x3
00047 #define UCAM_JPEG_RESOLUTION_320X240 0x5
00048 #define UCAM_JPEG_RESOLUTION_640X480 0x7
00049 
00050 class uCam {
00051 public:
00052     uCam(PinName tx, PinName rx) {
00053         s = new Serial(tx, rx);
00054         s->baud(57600);
00055     }
00056     ~uCam() {
00057         delete s;
00058     }
00059 
00060     int Command(const unsigned char *cmd);
00061     void ACK_F0F0();
00062     int Init();
00063     int LightFreq(int f);
00064     void Reset();
00065     int SnapshotRaw(int Color, int Res, unsigned char *buf);
00066     int SnapshotRawCrop(int Color, int Res,
00067                         int x0, int y0, int w, int h,
00068                         unsigned char *buf);
00069     int SnapshotJPEGi(int Res, int pksz);
00070     int SnapshotJPEGd(int no, unsigned char *buf, int pksz);
00071 
00072 private:
00073     Serial *s;
00074 
00075     int  checkACK(const unsigned char *buf);
00076     int  checkSYNC(const unsigned char *buf);
00077     void read(unsigned char *p, int len);
00078     int  readT(unsigned char *buf, int len);
00079     void write(const unsigned char *p, int len);
00080 };
00081 
00082 #endif