Download NHK English news podcast automatically. This application requires mpod mother board. See also http://mbed.org/users/geodenx/notebook/mpod/

Dependencies:   BlinkLed HTTPClient EthernetInterface FatFileSystemCpp MSCFileSystem mbed-rtos mbed

Download NHK English news podcast automatically. This application requires mpod mother board. See also http://mbed.org/users/geodenx/notebook/mpod/

Files at this revision

API Documentation at this revision

Comitter:
togayan
Date:
Sat Sep 01 04:12:37 2012 +0000
Parent:
3:07562878d3c3
Commit message:
HTTPFile was changed to follow the latest HTTPClient library.; BlinkLed was isolated as a library.; Change LED port from LED1,2 to LED3,4 for the specification of pwmout.

Changed in this revision

BlinkLed.cpp Show diff for this revision Revisions of this file
BlinkLed.h Show diff for this revision Revisions of this file
BlinkLed.lib Show annotated file Show diff for this revision Revisions of this file
HTTPClient.lib Show annotated file Show diff for this revision Revisions of this file
HTTPFile.cpp Show annotated file Show diff for this revision Revisions of this file
HTTPFile.h Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
--- a/BlinkLed.cpp	Sun Aug 19 15:57:55 2012 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,62 +0,0 @@
-#include "BlinkLed.h"
-    
-BlinkLed::BlinkLed(PinName pin, float dutyChangeStep, const char* name) :
-led(pin, name),
-dutyChangeStep(dutyChangeStep),
-thread(0)
-{
-}
-
-BlinkLed::~BlinkLed()
-{
-}
-
-void BlinkLed::startBlink()
-{
-    if(thread == 0)
-    {
-        thread = new Thread(blink, this, osPriorityNormal, 128, NULL);
-    }
-}
-
-void BlinkLed::finishBlink()
-{
-    if(thread != 0)
-    {
-        thread->terminate();
-        delete thread;
-        thread = 0;
-        led = 0.0;
-    }
-}
-
-void BlinkLed::blink(void const *argument)
-{
-    BlinkLed* blinkLed = (BlinkLed*)argument;
-    
-    int up = 1;
-    float brightness = 0.0;
-    while (1) {
-        if (up == 1 && brightness < 1.0) {
-            ;
-        } else if (up == 1 && brightness >= 1.0) {
-            up = 0;
-        } else if (up == 0 && brightness > 0) {
-            ;
-        } else if (up == 0 && brightness <= 0.0) {
-            up = 1;
-        } else {
-            error("LED PWM error\n");
-        }
-        
-        float dutyChangeStep = blinkLed->dutyChangeStep;
-        if (up == 1) {
-            brightness += dutyChangeStep;
-        } else {
-            brightness -= dutyChangeStep;
-        }
-        blinkLed->led = brightness;
-        
-        Thread::wait(20);
-    }
-}
--- a/BlinkLed.h	Sun Aug 19 15:57:55 2012 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,59 +0,0 @@
-/* BlinkLed.h */
-#ifndef BLINKLED_H_
-#define BLINKLED_H_
-
-#include "mbed.h"
-#include "rtos.h"
-
-/** LED which blinks automatically with RTOS
-*/
-class BlinkLed
-{
-public:
-    /** Constructor
-     */
-    BlinkLed(PinName pin, float dutyChangeStep, const char* name = NULL);
-    
-    /** Destructor
-     */
-    ~BlinkLed();
-    
-    /** Start biinking
-     */
-    void startBlink();
-    
-    /** Finish biinking
-     */
-    void finishBlink();
-      
-private:
-    /** Copy constructor
-     *  Disable because it is only declaration
-     */
-    BlinkLed(const BlinkLed&);
-    
-    /** Copy assignment operators
-     *  Disable because it is only declaration
-     */
-    BlinkLed& operator=(const BlinkLed&);
-    
-    /** Function for blinking
-     *  This function will be bind to new thread
-     */
-    static void blink(void const *argument);
-    
-    /** Target Led
-     */
-    PwmOut led;
-    
-    /** Duty ratio step of changing every 20ms
-     */
-    float dutyChangeStep;
-    
-    /** Pointer to thread for blinking
-     */
-    Thread* thread;
-};
-
-
-#endif /* BLINKLED_H_ */
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/BlinkLed.lib	Sat Sep 01 04:12:37 2012 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/togayan/code/BlinkLed/#a55a3351317d
--- a/HTTPClient.lib	Sun Aug 19 15:57:55 2012 +0000
+++ b/HTTPClient.lib	Sat Sep 01 04:12:37 2012 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/donatien/code/HTTPClient/#be61104f4e91
+http://mbed.org/users/donatien/code/HTTPClient/#1f743885e7de
--- a/HTTPFile.cpp	Sun Aug 19 15:57:55 2012 +0000
+++ b/HTTPFile.cpp	Sat Sep 01 04:12:37 2012 +0000
@@ -1,120 +1,132 @@
-/* HTTPFile.cpp */
-#include "HTTPFile.h"
-
-#include <cstring>
-
-#define OK 0
-#define NG -1
-
-using std::memcpy;
-using std::strncpy;
-using std::strlen;
-
-HTTPFile::HTTPFile(const char* path) :
-    m_fp(NULL),
-    m_path(path),
-    m_len(0),
-    m_chunked(false)
-{
-}
-
-HTTPFile::~HTTPFile()
-{
-    closeFile();
-}
-
-void HTTPFile::clear()
-{
-    closeFile();
-    //Force reopening
-}
-
-/*virtual*/ int HTTPFile::read(char* buf, size_t len, size_t* pReadLen)
-{
-    if(!openFile("r")) //File does not exist, or I/O error...
-        return NG;
-    
-    *pReadLen = fread(buf, 1, len, m_fp);
-    if( feof(m_fp) )
-    {
-        //File read completely, we can close it
-        closeFile();
-    }
-    return OK;
-}
-
-/*virtual*/ int HTTPFile::write(const char* buf, size_t len)
-{
-    if(!openFile("w")) //File does not exist, or I/O error...
-        return NG;
-    
-    len = fwrite(buf, 1, len, m_fp);
-    //DBG("Written %d bytes in %d\n", len, m_fp);
-    if( (!m_chunked && (ftell(m_fp) >= m_len)) || (m_chunked && !len) )
-    {
-        //File received completely, we can close it
-        closeFile();
-    }
-    return len;
-}
-
-/*virtual*/ int HTTPFile::getDataType(char* type, size_t maxTypeLen) //Internet media type for Content-Type header
-{
-    strncpy(type, "text/plain", maxTypeLen-1);
-    type[maxTypeLen-1] = '\0';
-    return OK;
-}
-
-/*virtual*/ void HTTPFile::setDataType(const char* type) //Internet media type from Content-Type header
-{
-    //Do not really care here
-}
-
-/*virtual*/ bool HTTPFile::getIsChunked() //For Transfer-Encoding header
-{
-    return false;
-}
-
-/*virtual*/ void HTTPFile::setIsChunked(bool chunked) //For Transfer-Encoding header
-{
-    m_chunked = chunked;
-}
-
-/*virtual*/ size_t HTTPFile::getDataLen() //For Content-Length header
-{
-    return m_len;
-}
-
-/*virtual*/ void HTTPFile::setDataLen(size_t len) //For Content-Length header, or if the transfer is chunked, next chunk length
-{
-    if(!m_chunked)
-        m_len = len; //Useful so that we can close file when last byte is written
-}
-
-bool HTTPFile::openFile(const char* mode) //true on success, false otherwise
-{
-    if(m_fp) 
-        return true;
-    
-    m_fp = fopen(m_path.c_str(), mode);
-    if(m_fp && mode[0]=='r')
-    {
-        //Seek EOF to get length
-        fseek(m_fp, 0, SEEK_END);
-        m_len = ftell(m_fp);
-        fseek(m_fp, 0, SEEK_SET); //Goto SOF
-    }
-    
-    //DBG("fd = %d\n", m_fp);
-    
-    if(!m_fp) 
-        return false;
-    
-    return true;
-}
-
-void HTTPFile::closeFile()
-{
-    if(m_fp)
-        fclose(m_fp);
-}
+/* HTTPFile.cpp */
+#include "HTTPFile.h"
+
+#include <cstring>
+
+#define OK 0
+#define NG -1
+
+using std::memcpy;
+using std::strncpy;
+using std::strlen;
+
+HTTPFile::HTTPFile(const char* path) :
+    m_fp(NULL),
+    m_path(path),
+    m_len(0),
+    m_chunked(false)
+{
+}
+
+HTTPFile::~HTTPFile()
+{
+    closeFile();
+}
+
+void HTTPFile::clear()
+{
+    closeFile();
+    //Force reopening
+}
+
+/*virtual*/ void HTTPFile::readReset()
+{
+    if(m_fp) 
+        fseek(m_fp, 0, SEEK_SET);
+}
+
+/*virtual*/ int HTTPFile::read(char* buf, size_t len, size_t* pReadLen)
+{
+    if(!openFile("r")) //File does not exist, or I/O error...
+        return NG;
+    
+    *pReadLen = fread(buf, 1, len, m_fp);
+    if( feof(m_fp) )
+    {
+        //File read completely, we can close it
+        closeFile();
+    }
+    return OK;
+}
+
+/*virtual*/ void HTTPFile::writeReset()
+{
+    if(m_fp) 
+        fseek(m_fp, 0, SEEK_SET);
+}
+
+/*virtual*/ int HTTPFile::write(const char* buf, size_t len)
+{
+    if(!openFile("w")) //File does not exist, or I/O error...
+        return NG;
+    
+    len = fwrite(buf, 1, len, m_fp);
+    //DBG("Written %d bytes in %d\n", len, m_fp);
+    if( (!m_chunked && (ftell(m_fp) >= m_len)) || (m_chunked && !len) )
+    {
+        //File received completely, we can close it
+        closeFile();
+    }
+    return len;
+}
+
+/*virtual*/ int HTTPFile::getDataType(char* type, size_t maxTypeLen) //Internet media type for Content-Type header
+{
+    strncpy(type, "text/plain", maxTypeLen-1);
+    type[maxTypeLen-1] = '\0';
+    return OK;
+}
+
+/*virtual*/ void HTTPFile::setDataType(const char* type) //Internet media type from Content-Type header
+{
+    //Do not really care here
+}
+
+/*virtual*/ bool HTTPFile::getIsChunked() //For Transfer-Encoding header
+{
+    return false;
+}
+
+/*virtual*/ void HTTPFile::setIsChunked(bool chunked) //For Transfer-Encoding header
+{
+    m_chunked = chunked;
+}
+
+/*virtual*/ size_t HTTPFile::getDataLen() //For Content-Length header
+{
+    return m_len;
+}
+
+/*virtual*/ void HTTPFile::setDataLen(size_t len) //For Content-Length header, or if the transfer is chunked, next chunk length
+{
+    if(!m_chunked)
+        m_len = len; //Useful so that we can close file when last byte is written
+}
+
+bool HTTPFile::openFile(const char* mode) //true on success, false otherwise
+{
+    if(m_fp) 
+        return true;
+    
+    m_fp = fopen(m_path.c_str(), mode);
+    if(m_fp && mode[0]=='r')
+    {
+        //Seek EOF to get length
+        fseek(m_fp, 0, SEEK_END);
+        m_len = ftell(m_fp);
+        fseek(m_fp, 0, SEEK_SET); //Goto SOF
+    }
+    
+    //DBG("fd = %d\n", m_fp);
+    
+    if(!m_fp) 
+        return false;
+    
+    return true;
+}
+
+void HTTPFile::closeFile()
+{
+    if(m_fp)
+        fclose(m_fp);
+}
--- a/HTTPFile.h	Sun Aug 19 15:57:55 2012 +0000
+++ b/HTTPFile.h	Sat Sep 01 04:12:37 2012 +0000
@@ -25,6 +25,11 @@
     void clear();
 
 protected:
+    /** Reset stream to its beginning 
+     * Called by the HTTPClient on each new request
+     */
+    virtual void readReset();
+  
     /** Read a piece of data to be transmitted
      * @param buf Pointer to the buffer on which to copy the data
      * @param len Length of the buffer
@@ -32,6 +37,11 @@
      */
     virtual int read(char* buf, size_t len, size_t* pReadLen);
     
+    /** Reset stream to its beginning 
+     * Called by the HTTPClient on each new request
+     */
+    virtual void writeReset();
+    
     /** Write a piece of data transmitted by the server
      * @param buf Pointer to the buffer from which to copy the data
      * @param len Length of the buffer
--- a/main.cpp	Sun Aug 19 15:57:55 2012 +0000
+++ b/main.cpp	Sat Sep 01 04:12:37 2012 +0000
@@ -13,12 +13,11 @@
 EthernetInterface eth;
 HTTPClient http;
 MSCFileSystem usb("usb");
-BlinkLed led1(LED1, 0.02);
-BlinkLed led2(LED2, 0.2);
+BlinkLed led3(LED3, 0.02);
+BlinkLed led4(LED4, 0.2);
 BlinkLed ethGreen(p26, 0.02);
 BlinkLed ethYellow(p25, 0.2);
 DigitalOut fsusb30s(p9);
-Timer timer;
 
 const char* rssUrl = "http://www3.nhk.or.jp/rj/podcast/rss/english.xml";
 const char* rssPath = "/usb/english.xml";
@@ -30,6 +29,10 @@
     printf("mpod NHK English news Downloader\n");
     printf("================================\n\n");
     
+    // Indicate downloading
+    led4.startBlink();
+    ethYellow.startBlink();
+    
     // FSUSB30 switches to HSD1 (mbed)
     printf("USB host was switched to HSD1(mbed).\n\n");
     fsusb30s = 0; // HSD1
@@ -137,8 +140,10 @@
     printf("\nUSB host was switched to HSD2(External Device).\n");
     fsusb30s = 1; // HSD2
 
-    // blink LED
-    led1.startBlink();
+    // Indicate finish downloading
+    led4.finishBlink();
+    ethYellow.finishBlink();
+    led3.startBlink();
     ethGreen.startBlink();
     
     while(true){}
@@ -146,13 +151,7 @@
 
 int GetFile(const char *path, const char *url)
 {
-    led2.startBlink();
-    ethYellow.startBlink();
-    printf("\nGetting %s\n", url);
-    
-    timer.stop();
-    timer.reset();
-    timer.start();
+    printf("Getting %s -> %s\n", url, path);
     
     HTTPFile file(path);
     HTTPResult retGet = http.get(url, &file);
@@ -163,10 +162,5 @@
     }
     file.clear();
     
-    timer.stop();
-    printf("timer.read_ms(): %d\n", timer.read_ms());
-    
-    led2.finishBlink();
-    ethYellow.finishBlink();
     return (0);
 }