Diff: FatfsIjfwConfigrable/FatfsIjfwConfigurable.cpp

Revision:

1:11f73f269fdc

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/FatfsIjfwConfigrable/FatfsIjfwConfigurable.cpp	Wed Aug 17 07:19:20 2016 +0000
@@ -0,0 +1,162 @@
+#include "mbed.h"
+#include "ff.h"
+#include "FatfsIjfwConfigurable.h"
+
+FatfsIjfwConfigurable::FatfsIjfwConfigurable(SPI* _spi, DigitalOut* _cs) : FatfsIJFW(_spi, _cs) {
+    initConfigItem();
+}
+
+
+void FatfsIjfwConfigurable::initConfigItem() {
+    strncpy(configitem[0].itemName, "FirmUpdate", ITEM_NAME_LENGTH);
+    strncpy(configitem[0].itemValue, "1", ITEM_VAL_LENGTH);
+    strncpy(configitem[1].itemName, "FirmFileDelete", ITEM_NAME_LENGTH);
+    strncpy(configitem[1].itemValue, "1", ITEM_VAL_LENGTH);
+    strncpy(configitem[2].itemName, "BasDirectory", ITEM_NAME_LENGTH);
+    strncpy(configitem[2].itemValue, "", ITEM_VAL_LENGTH);
+}
+
+
+int FatfsIjfwConfigurable::setConfigValue(const char* setName, const char* setValue) {
+    for (int i = 0; i < CONFIG_ITEM_NUM; i++) {
+        if (strncmp(configitem[i].itemName, setName, ITEM_NAME_LENGTH) == 0) {
+            strncpy(configitem[i].itemValue, setValue, ITEM_VAL_LENGTH);
+            configitem[i].itemValue[ITEM_VAL_LENGTH] = '\0';    // if setValue length is equal to ITEM_VAL_LENGTH
+            return 1;
+        }
+    }
+    
+    return 0;
+}
+
+
+int FatfsIjfwConfigurable::getConfigValue(const char* setName, char* buf) {
+    for (int i = 0; i < CONFIG_ITEM_NUM; i++) {
+        if (strncmp(configitem[i].itemName, setName, ITEM_NAME_LENGTH) == 0) {
+            strncpy(buf, configitem[i].itemValue, ITEM_VAL_LENGTH);
+            buf[ITEM_VAL_LENGTH] = '\0';    // if itemValue length is equal to ITEM_VAL_LENGTH
+            return 1;
+        }
+    }
+
+    return 0;
+}
+
+
+int FatfsIjfwConfigurable::readLine(char* buf, int length) {
+    if (f_gets(buf, (UINT)length, &file) != NULL) {
+        return 1;
+    }
+    return 0;
+}
+
+
+int FatfsIjfwConfigurable::readConfigFile(const char* configFiie) {
+    mount();
+    if (open(configFiie, MODE_RO) != FR_OK) {
+        return -1;
+    }
+
+    int retval = 0;
+    char buf[42], tempbuf[64];
+
+    while(readLine(tempbuf, sizeof(tempbuf))) {
+        // delete space and tab
+        for (int i = 0, j = 0; i < sizeof(tempbuf); i++) {
+            if (tempbuf[i] != ' ' && tempbuf[i] != '\t') {
+                if (j < sizeof(buf)) {
+                    buf[j] = tempbuf[i];
+                    j++;
+                }
+            }
+            if (tempbuf[i] == 0x0d || tempbuf[i] == 0x0a) {
+                buf[j] = '\0';
+                break;
+            }
+        }
+
+        // comment
+        if (buf[0] == '#') {
+            continue;
+        }
+
+        // position of separator
+        int i, pos_sep;
+        for (i = 0; i < sizeof(buf); i++) {
+            if (buf[i] == '=') {
+                pos_sep = i;
+                buf[i] = '\0';
+            } else if (buf[i] == '\0') {
+                break;
+            }
+        }
+
+        // check length
+        if (pos_sep > ITEM_NAME_LENGTH - 1) {
+            retval = -2;
+        }
+        if ( (i-1) - (pos_sep+1) > ITEM_VAL_LENGTH - 1) {
+            retval = -3;
+        }
+
+        // set value
+        setConfigValue(buf, &buf[pos_sep+1]);
+    }
+
+    close();
+    return retval;
+}
+
+
+int FatfsIjfwConfigurable::openBas(const char* name, const FileMode mode) {
+    char buf[ITEM_VAL_LENGTH+1];
+    getConfigValue("BasDirectory", buf);
+
+    if (strlen(buf) > 0) {
+        mkdir(buf);
+        chdir("/");
+        int res = chdir(buf);
+        if (res != FR_OK) {
+            return res;
+        }
+    }
+
+    return open(name, mode);
+}
+
+
+int FatfsIjfwConfigurable::chdir(const char* path) {
+    FRESULT res = f_chdir(path);
+    return (int)res;
+}
+
+
+int FatfsIjfwConfigurable::checkFirmFile(const char* binfile) {
+    char buf[ITEM_VAL_LENGTH+1];
+    getConfigValue("FirmUpdate", buf);
+
+    if (strncmp(buf, "0", 1) == 0) {
+        return 0;
+    }
+
+    mount();
+    if (open(binfile, MODE_RO) == FR_OK) {
+        close();
+        return 1;
+    }
+
+    return 0;
+}
+
+
+int FatfsIjfwConfigurable::deleteFirmFile(const char* binfile) {
+    char buf[ITEM_VAL_LENGTH+1];
+    getConfigValue("FirmFileDelete", buf);
+
+    if (strncmp(buf, "1", 1) == 0) {
+        remove(binfile);
+        return 1;
+    }
+
+    return 0;
+}