Diff: CameraC328.cpp

Revision:

0:7e51c3176eb7

Child:

1:167e51d598cf

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/CameraC328.cpp	Sun Jun 27 03:36:10 2010 +0000
@@ -0,0 +1,310 @@
+#include "CameraC328.h"
+
+Serial debout(USBTX, USBRX);
+
+#if 1
+#define SENDFUNC    sendBytesWithDebugOutput
+#define RECVFUNC    recvBytesWithDebugOutput
+#else
+#define SENDFUNC    sendBytes
+#define RECVFUNC    recvBytes
+#endif
+
+CameraC328::CameraC328(PinName tx, PinName rx) : serial(tx, rx) {
+    serial.baud(BAUD);
+}
+
+CameraC328::~CameraC328() {
+}
+
+CameraC328::ErrorNumber CameraC328::sync() {
+    char send[COMMAND_LENGTH];
+    char recv[COMMAND_LENGTH];
+    send[0] = 0xAA;
+    send[1] = 0x0D;
+    send[2] = 0;
+    send[3] = 0;
+    send[4] = 0;
+    send[5] = 0;
+    for (int i = 0; i < SYNCMAX; i++) {
+        if (SENDFUNC(send, sizeof(send))) {
+            if (RECVFUNC(recv, sizeof(recv))) {
+                if ((0xAA == recv[0]) && (0x0E == recv[1])) {
+                    if (RECVFUNC(recv, sizeof(recv))) {
+                        if ((0xAA == recv[0]) && (0x0D == recv[1])) {
+                            send[0] = 0xAA;
+                            send[1] = 0x0E;
+                            send[2] = 0x0D;
+                            send[3] = 0x00;
+                            send[4] = 0x00;
+                            send[5] = 0x00;
+                            if (SENDFUNC(send, sizeof(send))) {
+                                /*
+                                 * After synchronization, the camera needs a little time for AEC and AGC to be stable.
+                                 * Users should wait for 1-2 seconds before capturing the first picture.
+                                 */
+                                wait(1);
+                                return NoError;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        wait(0.2);
+    }
+    return UnexpectedReply;
+}
+
+CameraC328::ErrorNumber CameraC328::getPicture(PictureType pt, void(*func)(size_t done, size_t total, char c)) {
+    switch (pt) {
+        case PreviewPicture:
+            return getPreviewPicture(func);
+        case SnapshotPicture:
+            return getSnapshotPicture(func);
+    }
+    return NoError;
+}
+
+CameraC328::ErrorNumber CameraC328::init(ColorType ct, RawResolution rr, JpegResolution jr) {
+    char send[COMMAND_LENGTH];
+    char recv[COMMAND_LENGTH];
+
+    send[0] = 0xAA;
+    send[1] = 0x01;
+    send[2] = 0x00;
+    send[3] = (char)ct;
+    send[4] = (char)rr;
+    send[5] = (char)jr;
+
+    if (!SENDFUNC(send, sizeof(send))) {
+        return (ErrorNumber)SendRegisterTimeout;
+    }
+
+    if (!RECVFUNC(recv, sizeof(recv))) {
+        return (ErrorNumber)UnexpectedReply;
+    }
+
+    if ((0xAA != recv[0]) || (0x0E != recv[1])) {
+        return (ErrorNumber)recv[4];
+    }
+
+    return (ErrorNumber)NoError;
+}
+
+/*
+ * Get snapshot picture (uncompressed snapshot picture)
+ *
+ * @param func Pointer to a callback function.
+ * @return Status of the error.
+ */
+CameraC328::ErrorNumber CameraC328::getSnapshotPicture(void(*func)(size_t done, size_t total, char c)) {
+
+    char send[COMMAND_LENGTH];
+    char recv[COMMAND_LENGTH];
+
+    send[0] = 0xAA;
+    send[1] = 0x05;
+    send[2] = SnapshotPicture;
+    send[3] = 0x00;
+    send[4] = 0x00;
+    send[5] = 0x00;
+
+    if (!SENDFUNC(send, sizeof(send))) {
+        return (ErrorNumber)SendRegisterTimeout;
+    }
+    if (!RECVFUNC(recv, sizeof(recv))) {
+        return (ErrorNumber)UnexpectedReply;
+    }
+    if ((0xAA != recv[0]) || (0x0E != recv[1])) {
+        return (ErrorNumber)recv[4];
+    }
+
+    send[0] = 0xAA;
+    send[1] = 0x04;
+    send[2] = SnapshotPicture;
+    send[3] = 0x00;
+    send[4] = 0x00;
+    send[5] = 0x00;
+
+    if (!SENDFUNC(send, sizeof(send))) {
+        return (ErrorNumber)SendRegisterTimeout;
+    }
+    wait(1);
+    if (!RECVFUNC(recv, sizeof(recv))) {
+        return (ErrorNumber)UnexpectedReply;
+    }
+    if ((0xAA != recv[0]) || (0x0E != recv[1])) {
+        return (ErrorNumber)recv[4];
+    }
+    wait(1);
+    if (!RECVFUNC(recv, sizeof(recv))) {
+        return (ErrorNumber)UnexpectedReply;
+    }
+    if ((0xAA != recv[0]) || (0x0A != recv[1])) {
+        return (ErrorNumber)UnexpectedReply;
+    }
+
+    size_t siz = (recv[3] << (8 * 2)) | (recv[4] << (8 * 1)) | (recv[5] << (8 * 0));
+    size_t cnt = 0;
+    for (int i = 0; i < (int)siz; i++) {
+        char c;
+        if (!RECVFUNC(&c, sizeof(c))) {
+            return (ErrorNumber)UnexpectedReply;
+        }
+        cnt++;
+        func(cnt, siz, c);
+    }
+
+    return (siz == cnt) ? (ErrorNumber)NoError : (ErrorNumber)SendPictureError;
+}
+
+/*
+ * Get preview picture (uncompressed preview picture)
+ *
+ * @param func Pointer to a callback function.
+ * @return Status of the error.
+ */
+CameraC328::ErrorNumber CameraC328::getPreviewPicture(void(*func)(size_t done, size_t total, char c)) {
+
+    char send[COMMAND_LENGTH];
+    char recv[COMMAND_LENGTH];
+
+    send[0] = 0xAA;
+    send[1] = 0x04;
+    send[2] = PreviewPicture;
+    send[3] = 0x00;
+    send[4] = 0x00;
+    send[5] = 0x00;
+
+    if (!SENDFUNC(send, sizeof(send))) {
+        return (ErrorNumber)SendRegisterTimeout;
+    }
+    wait(1);
+    if (!RECVFUNC(recv, sizeof(recv))) {
+        return (ErrorNumber)UnexpectedReply;
+    }
+    if ((0xAA != recv[0]) || (0x0E != recv[1])) {
+        return (ErrorNumber)recv[4];
+    }
+    wait(1);
+    if (!RECVFUNC(recv, sizeof(recv))) {
+        return (ErrorNumber)UnexpectedReply;
+    }
+    if ((0xAA != recv[0]) || (0x0A != recv[1])) {
+        return (ErrorNumber)UnexpectedReply;
+    }
+
+    size_t siz = (recv[3] << (8 * 2)) | (recv[4] << (8 * 1)) | (recv[5] << (8 * 0));
+    size_t cnt = 0;
+    for (int i = 0; i < (int)siz; i++) {
+        char c;
+        if (!RECVFUNC(&c, sizeof(c))) {
+            return (ErrorNumber)UnexpectedReply;
+        }
+        cnt++;
+        func(cnt, siz, c);
+    }
+
+    return (siz == cnt) ? (ErrorNumber)NoError : (ErrorNumber)SendPictureError;
+}
+
+/**
+ * Send bytes to camera module.
+ *
+ * @param buf Pointer to the data buffer.
+ * @param len Length of the data buffer.
+ *
+ * @return True if the data sended.
+ */
+bool CameraC328::sendBytes(char *buf, size_t len) {
+    for (int i = 0; i < (int)len; i++) {
+        int cnt = 0;
+        while (!serial.writeable()) {
+            wait(0.001);
+            cnt++;
+            if (TIMEOUT_MS < cnt) {
+                return false;
+            }
+        }
+        serial.putc(buf[i]);
+    }
+    return true;
+}
+
+/**
+ * Receive bytes from camera module.
+ *
+ * @param buf Pointer to the data buffer.
+ * @param len Length of the data buffer.
+ *
+ * @return True if the data received.
+ */
+bool CameraC328::recvBytes(char *buf, size_t len) {
+    for (int i = 0; i < (int)len; i++) {
+        int cnt = 0;
+        while (!serial.readable()) {
+            wait(0.001);
+            cnt++;
+            if (TIMEOUT_MS < cnt) {
+                return false;
+            }
+        }
+        buf[i] = serial.getc();
+    }
+    return true;
+}
+
+/**
+ * Send bytes to camera module.
+ *
+ * @param buf Pointer to the data buffer.
+ * @param len Length of the data buffer.
+ *
+ * @return True if the data sended.
+ */
+bool CameraC328::sendBytesWithDebugOutput(char *buf, size_t len) {
+    debout.printf("SEND : ");
+    for (int i = 0; i < (int)len; i++) {
+        int cnt = 0;
+        while (!serial.writeable()) {
+            wait(0.001);
+            cnt++;
+            if (TIMEOUT_MS < cnt) {
+                debout.printf(" [Timed out]\n");
+                return false;
+            }
+        }
+        serial.putc(buf[i]);
+        debout.printf(" %02X", buf[i]);
+    }
+    debout.printf(" [OK]\n");
+    return true;
+}
+
+/**
+ * Receive bytes from camera module.
+ *
+ * @param buf Pointer to the data buffer.
+ * @param len Length of the data buffer.
+ *
+ * @return True if the data received.
+ */
+bool CameraC328::recvBytesWithDebugOutput(char *buf, size_t len) {
+    debout.printf("RECV : ");
+    for (int i = 0; i < (int)len; i++) {
+        int cnt = 0;
+        while (!serial.readable()) {
+            wait(0.001);
+            cnt++;
+            if (TIMEOUT_MS < cnt) {
+                debout.printf(" [Timed out]\n");
+                return false;
+            }
+        }
+        buf[i] = serial.getc();
+        debout.printf(" %02X", buf[i]);
+    }
+    debout.printf(" [OK]\n");
+    return true;
+}