Diff: FirmwareUpdater.cpp

Revision:

0:dad421e28e26

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/FirmwareUpdater.cpp	Fri Apr 01 07:51:52 2011 +0000
@@ -0,0 +1,248 @@
+/**
+  * =============================================================================
+  * Firmware updater (Version 0.0.1)
+  * =============================================================================
+  * Copyright (c) 2010 Shinichiro Nakamura (CuBeatSystems)
+  *
+  * Permission is hereby granted, free of charge, to any person obtaining a copy
+  * of this software and associated documentation files (the "Software"), to deal
+  * in the Software without restriction, including without limitation the rights
+  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  * copies of the Software, and to permit persons to whom the Software is
+  * furnished to do so, subject to the following conditions:
+  *
+  * The above copyright notice and this permission notice shall be included in
+  * all copies or substantial portions of the Software.
+  *
+  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  * THE SOFTWARE.
+  * =============================================================================
+  */
+
+#include "FirmwareUpdater.h"
+
+#include <stdio.h>
+#include <stdarg.h>
+
+extern "C" void mbed_reset();
+
+const std::string FirmwareUpdater::EXT_BIN = ".bin";
+const std::string FirmwareUpdater::EXT_BINTMP = ".b__";
+const std::string FirmwareUpdater::EXT_TXT = ".txt";
+const std::string FirmwareUpdater::EXT_TXTTMP = ".t__";
+
+MSCFileSystem fs ("fs");
+LocalFileSystem local("local");
+
+
+/**
+ * Create.
+ *
+ * @param src_name: An application name on USB Stick. Do not include a extention.
+ * @param dest_name An application name on MBED. Do not include a extention.
+ * @param log True if logging.
+ */
+FirmwareUpdater::FirmwareUpdater(std::string src_name, std::string dest_name, bool log)
+        : src_name(src_name), dest_name(dest_name), log(log), local("local") {
+
+}
+
+/*
+ * Dispose.
+ */
+FirmwareUpdater::~FirmwareUpdater() {
+}
+
+/**
+ * Get the source_name.
+ *
+ * @return src_name.
+ */
+const std::string FirmwareUpdater:: get_src_name() const {
+    return src_name;
+}
+
+/**
+ * Get the dest_name.
+ *
+ * @return _destname.
+ */
+const std::string FirmwareUpdater:: get_dest_name() const {
+    return dest_name;
+}
+
+/*
+ * Checking a new firmware.
+ * Compare versions of the software between local storage on mbed and on USB Stick.
+ *
+ * @return Return 0 if a new firmware exists.
+ */
+
+int FirmwareUpdater::exist() {
+    int ver_local, ver_USB;
+    printf("Fetch the version from a local.");
+    /*
+     * Fetch the version from a local.
+     */
+    std::string file_local = "/local/" + dest_name + EXT_TXT;
+    FILE *fp = fopen(file_local.c_str(), "rb");
+    if (fp == NULL) {
+        LOG("Local firmware version file '%s' open failed.\n\r", file_local.c_str());
+        return -1;
+    }
+    if (fscanf(fp, "%d", &ver_local) != 1) {
+        LOG("Local firmware version file '%s' is invalid.\n\r", file_local.c_str());
+        return -2;
+    }
+    fclose(fp);
+    LOG("Local firmware version is %d. (%s)\n\r", ver_local, file_local.c_str());
+
+    /*
+     * Fetch the version from  USB Stick.
+     */
+     printf("Fetch the version from  USB Stick.\r");
+    std::string file_USB = "/fs/" + src_name + EXT_TXT;
+    fp = fopen(file_USB.c_str(), "rb");
+    
+    if (fp == NULL) {
+        LOG("Source firmware version file '%s' open failed.\n\r", file_USB.c_str());
+        return -1;
+    }
+    if (fscanf(fp, "%d", &ver_USB) != 1) {
+        LOG("Source firmware version file '%s' is invalid.\n\r", file_USB.c_str());
+        return -2;
+    }
+    fclose(fp);
+    LOG("Source firmware version is %d. (%s)\n\r", ver_USB, file_USB.c_str());
+
+
+
+    return (ver_local < ver_USB) ? 0 : 1;
+}
+
+/**
+ * Execute update.
+ *
+ * @return Return 0 if it succeed.
+ */
+int FirmwareUpdater::execute() {
+    /*
+     * Fetch the files.
+     */
+    printf("Start execute\r");
+    std::string USB_txt = "/fs/" + src_name + EXT_TXT;
+    std::string USB_bin = "/fs/" + src_name + EXT_BIN;
+    
+   /*
+    std::string file_txttmp = "/local/" + name + EXT_TXTTMP;
+    std::string file_bintmp = "/local/" + name + EXT_BINTMP;
+    if (fetch(serv_txt, file_txttmp) != 0) {
+        return -1;
+    }
+    if (fetch(serv_bin, file_bintmp) != 0) {
+        return -2;
+    }*/
+    /*
+     * Copy it.
+     */
+     
+    std::string local_txt = "/local/" + dest_name + EXT_TXT;
+    std::string local_bin = "/local/" + dest_name + EXT_BIN;
+    if (copy(USB_txt, local_txt) != 0) {
+        printf("-3");
+        return -3;
+    }
+    if (copy(USB_bin, local_bin) != 0) {
+        printf("-4");
+        return -4;
+    }
+    /*
+     * Delete the temporary files.
+     */
+    //remove(file_txttmp.c_str());
+    //remove(file_bintmp.c_str());
+    return 0;
+}
+
+
+/**
+ * Reset system.
+ */
+void FirmwareUpdater::reset() {
+    mbed_reset();
+}
+
+/**
+ * Fetch a file.
+ *
+ * @param src_url URL of a source file.
+ * @param local_file Local file name.
+ *
+ * @return Return 0 if it succeed.
+ */
+int FirmwareUpdater::fetch(std::string src_name, std::string local_file) {
+    return (0);
+}
+
+
+/**
+  * Copy a file.
+  *
+  * @param local_file1 Source file.
+  * @param local_file2 Destination file.
+  *
+  * @return Return 0 if it succeed.
+  */
+int FirmwareUpdater::copy(std::string local_file1, std::string local_file2) {
+    
+    LOG("File copying... (%s->%s)\n\r", local_file1.c_str(), local_file2.c_str());
+
+    FILE *rp = fopen(local_file1.c_str(), "rb");
+    if (rp == NULL) {
+        LOG("File '%s' open failed.\n", local_file1.c_str());
+        return -1;
+    }
+    remove(local_file2.c_str());
+    FILE *wp = fopen(local_file2.c_str(), "wb");
+    if (wp == NULL) {
+        LOG("File '%s' open failed.\n\r", local_file2.c_str());
+        fclose(rp);
+        return -2;
+    }
+    int c;
+    while ((c = fgetc(rp)) != EOF) {
+        fputc(c, wp);
+    }
+    fclose(rp);
+    fclose(wp);
+    LOG("File copied. (%s->%s)\n\r", local_file1.c_str(), local_file2.c_str());
+    return 0;
+}
+
+
+/**
+ * Output a message to a log file.
+ *
+ * @param format ...
+ */
+void FirmwareUpdater::LOG(const char* format, ...) {
+    if (log) {
+        FILE *fplog = fopen("/local/update.log", "a");
+        if (fplog != NULL) {
+            char buf[BUFSIZ];
+            va_list p;
+            va_start(p, format);
+            vsnprintf(buf, sizeof(buf) - 1, format, p);
+            fprintf(fplog, "%s", buf);
+            va_end(p);
+            fclose(fplog);
+        }
+    }
+
+
+}