Diff: main.cpp

Revision:

0:e1919041e50b

Child:

1:62552e038f69

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Dec 16 21:56:36 2010 +0000
@@ -0,0 +1,210 @@
+/* mbed MP3 Shield Player - Testapplication for VLSI VS1053b Lib
+ * Copyright (c) 2010 Christian Schmiljun
+ *
+ * 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 "mbed.h"
+#include "VS1053.h"
+
+// Volume [ 0x0000 (loud) .. 0xFEFE (quiet) ]
+#define VOLUME -42.0f
+// Switch for local filesystem or SDCard
+#define USE_SDCARD
+
+#define DEBUG
+// ----------------------------------------------------------------------------
+//
+// Pin Assigenment for SDCard on Cool Components Workshop Board
+//
+// SDCard             |  mbed Side
+// ---------------------------------------
+//  mosi-----------------5
+//  miso-----------------6
+//  sclk-----------------7
+//  cs-------------------8
+//
+// ----------------------------------------------------------------------------
+#ifdef USE_SDCARD
+#include "SDFileSystem.h"
+
+SDFileSystem sd(p5, p6, p7, p8, "sd");
+#define DIR_NAME "/sd/Musik"
+#else
+LocalFileSystem sd("local");
+#define DIR_NAME "/local"
+#endif
+
+
+
+
+// ----------------------------------------------------------------------------
+//
+// Pin Assigenment for Arduino MP3 Shield
+// (VS1053 employed, issued by sparkfun.com)
+//
+// MP3 Sheild Side   |  mbed Side
+// ---------------------------------------
+//  RX-------------------10 (optional)
+//  TX-------------------09 (optional)
+//  D2(BSYNC)------------17
+//  D3(DREQ)-------------16
+//
+//  D9(CS)---------------14
+//
+//  D11(MOSI)------------11
+//  D12(MISO)------------12
+//  D13(SCK)-------------13
+//
+//  GND------------------GND(1)
+//  5V-------------------VU(39)
+//  RESET----------------15
+//
+// ----------------------------------------------------------------------------
+VS1053 mp3( p11, p12, p13, p14, p15, p16, p17);
+
+// Serial for Debug
+Serial pc(USBTX, USBRX);
+
+void setVolume(void) {
+    if (pc.readable())
+    {
+        unsigned char c = pc.getc();
+// scanf ("%x",&i);
+        if (c =='+')
+            mp3.setVolume(mp3.getVolume() + 0.5);
+        else if (c == '-')
+        {        
+            mp3.setVolume(mp3.getVolume() - 0.5);
+        }
+        else if (c =='a')
+        {            
+            mp3.setBalance(mp3.getBalance() + 0.5);
+        }
+        else if (c == 'y')
+        {
+            mp3.setBalance(mp3.getBalance() - 0.5);
+        } 
+        else if (c == '1')
+        {
+            mp3.setPlaySpeed(1);       
+        }
+        else if (c == '2')
+        {
+            mp3.setPlaySpeed(2);       
+        }
+        else if (c == '3')
+        {
+            mp3.setPlaySpeed(3);       
+        }
+        else if (c == '4')
+        {
+            mp3.setPlaySpeed(4);       
+        }             
+    }
+}
+
+int main () {
+    // ------------------------------------------------------------------------
+    //  MP3 Initialising
+    // ------------------------------------------------------------------------
+    printf("Initialize mp3 Codec...\r\n");
+    mp3.initialize();
+    printf("mp3 Codec is initialized\r\n");
+
+
+    mp3.setVolume(VOLUME);
+    pc.attach(setVolume);                    
+
+
+    // ------------------------------------------------------------------------
+    //  Play mp3 file
+    // ------------------------------------------------------------------------    
+
+    //while (1)
+    {
+        DIR *d;
+        struct dirent *p;
+        d = opendir(DIR_NAME);
+        if(d != NULL) 
+        {
+            while ((p = readdir(d)) != NULL) {                          
+                char str[160] = DIR_NAME;
+                
+                //check extension
+                char * extension =strrchr( p->d_name,'.') + 1;
+                bool isAudioFile = false; 
+                if (strcmp(extension, "mp3") == 0)
+                    isAudioFile = true;
+                else if (strcmp(extension, "MP3") == 0)
+                    isAudioFile = true;
+                else if (strcmp(extension, "mp4") == 0)
+                    isAudioFile = true;
+                else if (strcmp(extension, "MP4") == 0)
+                    isAudioFile = true;
+                if (isAudioFile ) 
+                {                                                                                         
+                    printf("Now Playing: %s\r\n", p->d_name);
+                    
+                    sprintf(str, "%s/%s", DIR_NAME, p->d_name);
+                    printf("Path %s\r\n", str);
+                    
+                    FILE *song;
+            
+                    unsigned char array[4*1024];
+                                   
+                    song = fopen(str, "rb");
+                    //song = fopen("/sd/Musik/01.mp3", "rb");
+                
+                    if (!song) {
+                        printf("Couldn't open %s\r\n", str);
+                        continue;
+                        //exit(1);
+                    }
+                
+                    while (!feof(song)) {
+                        int n=fread(&array, 1, sizeof(array), song);
+                        mp3.writeStream(array,n);
+                    }
+                
+                    mp3.terminateStream();
+                    fclose(song);  //close the file
+                    
+                    printf("End of song.");
+                    wait(1.0);
+                }
+                else
+                {
+                     printf("File ignored. Extension: %s\r\n", extension);                
+                }
+
+            }
+            closedir(d);
+        } 
+        else 
+        {
+            error("Could not open directory!");
+    //        break;
+        }
+                
+     }
+    printf("Done.\r\n");
+
+}