Diff: main.cpp

Revision:

2:ce93bf118649

Parent:

0:3d6892f6384f

--- a/main.cpp	Fri Aug 05 10:12:21 2011 +0000
+++ b/main.cpp	Sat Jul 23 21:29:39 2016 +0000
@@ -1,9 +1,267 @@
 #include "mbed.h"
-#include "SDHCFileSystem.h"
 #include "TLV320.h"
+
+Serial pc(USBTX, USBRX);
  
-TLV320 audio(p9, p10, 52, p5, p6, p7, p8, p29); //TLV320 object
-SDFileSystem sd(p11, p12, p13, p14, "sd");      //SD Card object
+/******************************************************************************
+ * Includes
+ *****************************************************************************/
+#include "MCIFileSystem.h"
+
+/******************************************************************************
+ * Typedefs and defines
+ *****************************************************************************/
+
+typedef bool (*syncFunc)(const char* name, bool isDir);
+
+/******************************************************************************
+ * Local variables
+ *****************************************************************************/
+
+MCIFileSystem mcifs("mci");
+
+DigitalOut myled1(LED1);
+DigitalOut myled2(LED2);
+
+/******************************************************************************
+ * Local functions
+ *****************************************************************************/
+
+static void ledShowProgress()
+{
+  static int state = 0;
+  state = (state + 1) % 2;
+  switch (state)
+  {
+    case 0:
+      myled1 = 1;
+      myled2 = 0;
+      break;
+
+    case 1:
+    default:
+      myled1 = 0;
+      myled2 = 1;
+  }
+}
+
+static void handleError(const char* msg)
+{
+  printf(msg);
+  while(true) {
+    myled1 = 1;
+    myled2 = 1;
+    wait(0.3);
+    myled1 = 0;
+    myled2 = 0;
+    wait(0.3);
+  }
+}
+
+static bool recursiveProcessFS(char* buff, const char* name, syncFunc func, bool adding)
+{
+  uint32_t len = strlen(buff);
+  if (len > 0) {
+    if (buff[len - 1] != '/') {
+      buff[len++] = '/';
+      buff[len] = '\0';
+    }
+  }
+  strcat(buff, name);
+  len += strlen(name);
+  
+  if (len > 60) {
+    // ugly fix to avoid crashes that occurs when file name is larger than buffer 
+    // in FATFileSystem.
+    printf("skipped:   %s\n", buff);
+    return true;
+  }
+
+  DIR *d = opendir(buff);
+  bool result = true; // success
+  if (d != NULL) {
+    if (adding) {
+      // when processing in adding mode folders must be created before it's content
+      result = func(buff, true);
+    }
+    struct dirent *p;
+    while (result && ((p = readdir(d)) != NULL)) {
+      result = recursiveProcessFS(buff, p->d_name, func, adding);
+      buff[len] = '\0';
+    }
+    closedir(d);
+    if (result && !adding) {
+      // when processing in removing mode folders must be deleted after it's content
+      result = func(buff, true);
+    }
+  } else {
+    // a file
+    result = func(buff, false);
+  }
+  return result;
+}
+
+static uint32_t fileLen(FILE* f)
+{
+  uint32_t pos = ftell(f);
+  fseek(f, 0, SEEK_END);
+  uint32_t size = ftell(f);
+  fseek(f, pos, SEEK_SET);
+  return size;
+}
+
+static bool copyFH(FILE* fSrc, FILE* fDst)
+{
+  char buff[512];
+  uint32_t left = fileLen(fSrc);
+  uint32_t num;
+  uint32_t chunk;
+
+  fseek(fSrc, 0, SEEK_SET);
+  do {
+    chunk = (left < 512) ? left : 512;
+    num = fread(buff, 1, chunk, fSrc);
+    if (num > 0) {
+      uint32_t tmp = fwrite(buff, 1, num, fDst);
+      if (tmp != num) {
+        // failed to write
+        return false;
+      }
+      left -= num;
+      ledShowProgress();
+    }
+  } while(num > 0 && left > 0);
+
+  // copied entire file
+  return true;
+}
+
+static bool copy(const char* fnameSrc, const char* fnameDest)
+{
+  FILE* fhSrc = NULL;
+  FILE* fhDest = NULL;
+  bool success = false;
+  
+  do {
+    fhSrc = fopen(fnameSrc, "r");
+    if (fhSrc == NULL) {
+      break;
+    }
+    
+    fhDest = fopen(fnameDest, "w");
+    if (fhDest == NULL) {
+      break;
+    }
+    
+    if (!copyFH(fhSrc, fhDest)) {
+      break;
+    }
+    
+    success = true;
+  } while (false);
+  
+  if (fhSrc != NULL) {
+    fclose(fhSrc);
+  }
+  if (fhDest != NULL) {
+    fclose(fhDest);
+  }
+  
+  return success;
+}
+
+static bool list(const char* name, bool isDir)
+{
+  if (isDir) {
+    printf("d:         %s\n", name);
+  } else {
+    FILE* f = fopen(name, "r");
+    if (f != NULL) {
+      uint32_t len = fileLen(f);
+      printf("f: %7u %s\n", len, name);
+      fclose(f);
+    } else {
+      printf("f:     ??? %s\n", name);
+    }
+  }
+  return true;
+}
+
+static void recursiveList(const char* dirname)
+{
+  printf("\nRecursive list of file and folders in %s\n", dirname);
+  char* buff = (char*)malloc(512);
+  if (buff != NULL)
+  {
+    buff[0] = '\0';
+    recursiveProcessFS(buff, dirname, list, true);
+    free(buff);
+  }
+}
+
+static void testAppend(const char* filename)
+{
+    FILE *fp = fopen(filename, "a");
+    if (fp != NULL) {
+        fprintf(fp, "Hello World!");
+        fclose(fp);
+    }
+}
+
+/******************************************************************************
+ * TestSdCard function
+ *****************************************************************************/
+
+int TestSdCard()
+{
+  printf("\n-----------------\n\nWelcome to the MCI file system example...\n");
+  
+  if (!mcifs.cardInserted()) {
+    printf("Please insert a SD/MMC card...\n");
+    while (!mcifs.cardInserted()) {
+      wait(0.5);
+    }
+    printf("Card detected!\n");
+  }
+
+  recursiveList("/mci/");
+
+  copy("/mci/expanding.txt", "/mci/expanding.old");
+  testAppend("/mci/expanding.txt");
+
+  //recursiveList("/mci/");
+  
+  
+      
+      printf("Found SD/MMC card, writing to /mci/myfile.txt ...\n");
+      
+      Timer t;
+      
+      t.start();
+      
+      FILE *fp = fopen("/mci/myfile.txt", "w");
+      if (fp != NULL) 
+      {
+          for (long i=0; i<100000L; i++)
+          fprintf(fp, "Hello World!\n");
+          fclose(fp);
+          printf("Wrote to /mci/myfile.txt\n");
+      } else {
+          printf("Failed to open /mci/myfile.txt\n");
+      }
+    t.stop();
+    
+     printf("The time taken was %f seconds\n", t.read());
+    
+  
+  handleError("Program completed!\n");  
+  return 1;
+}
+
+ 
+ 
+TLV320 audio(p9, p10, 52, p11, p12, p13, p14, p16); //TLV320 object
+
 InterruptIn volumeSet(p17);                     
 AnalogIn aIn(p19); 
 FILE *infp;                                     //File pointer object
@@ -41,8 +299,11 @@
     }
 }
 /* main */
-int main(){   
-    infp = fopen("/sd/test.wav", "r");      //open file
+int main()
+{
+    pc.baud(460800);
+       
+    infp = fopen("/mci/agnes.wav","rb");
         if(infp == NULL){                   //make sure it's been opened
         perror("Error opening file!");
         exit(1);