Norimasa Okamoto / WIZ820ioNetIf

WIZ820io（W5200) network interface、EthernetNetIf compatible.

/media/uploads/va009039/wiz820ionetif.jpg

example

#include "WIZ820ioNetIf.h"
#include "HTTPClient.h"
#include "HTTPServer.h"

#if defined(TARGET_KL25Z)
WIZ820ioNetIf eth(PTD2,PTD3,PTD1,PTD0,PTD5);
#endif
HTTPClient http;
HTTPStream stream;

void callback(HTTPResult r){
    printf("callback %d %s\n", r, HTTPClient::ResultStr(r));
}

int main() {
    int err = eth.setup();
    if (err < 0) {
        printf("setup error %d\n", err);
        exit(-1);
    }    

    HTTPServer svr;
    svr.addHandler<SimpleHandler>("/");
    svr.bind(80);

    const char* uri = "http://va009039-mbed.appspot.com/kl25z/";
    http.get(uri, &stream, callback);
    uint8_t buf[256];
    int total = 0;
    stream.readNext(buf, sizeof(buf));
    while(1) {
        if(stream.readable()) {
            int len = stream.readLen();
            total += len;
            printf("%d %d\n", total, len);
            stream.readNext(buf, sizeof(buf));
        }
        Net::poll();
    }
}

Diff: w5200.cpp

Revision:
1:22b9052d864d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/w5200.cpp	Sun Mar 24 11:25:31 2013 +0000
@@ -0,0 +1,213 @@
+/*
+ * Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st>
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of either the GNU General Public License version 2
+ * or the GNU Lesser General Public License version 2.1, both as
+ * published by the Free Software Foundation.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include "mbed.h"
+#include "w5200.h"
+
+SPI* pSPI;
+DigitalOut* pCS;
+void initSS(){ pCS->write(1); }
+void setSS() { pCS->write(0); }
+void resetSS() { pCS->write(1); }
+
+// W5200 controller instance
+W5200Class W5200;
+
+#define TX_RX_MAX_BUF_SIZE 2048
+#define TX_BUF 0x1100
+#define RX_BUF (TX_BUF + TX_RX_MAX_BUF_SIZE)
+
+#define TXBUF_BASE 0x8000
+#define RXBUF_BASE 0xC000
+
+#if defined(TARGET_KL25Z)
+#define RESET_PIN PTD5
+#define CS_PIN    PTD0
+#define MOSI_PIN  PTD2
+#define MISO_PIN  PTD3
+#define SCLK_PIN  PTD1
+#endif
+
+void W5200Class::init(void)
+{
+  if (!pSPI) {
+    pSPI = new SPI(MOSI_PIN, MISO_PIN, SCLK_PIN); // mosi, miso, sclk
+  }
+  if (!pCS) {
+    pCS = new DigitalOut(CS_PIN);
+  }
+  initSS();
+  writeMR(1<<RST);
+  
+  for (int i=0; i<MAX_SOCK_NUM; i++) {
+    write((0x4000 + i * 0x100 + 0x001F), 2);
+    write((0x4000 + i * 0x100 + 0x001E), 2);
+  }
+
+  for (int i=0; i<MAX_SOCK_NUM; i++) {
+    SBASE[i] = TXBUF_BASE + SSIZE * i;
+    RBASE[i] = RXBUF_BASE + RSIZE * i;
+  }
+}
+
+uint16_t W5200Class::getTXFreeSize(SOCKET s)
+{
+  uint16_t val=0, val1=0;
+  do {
+    val1 = readSnTX_FSR(s);
+    if (val1 != 0)
+      val = readSnTX_FSR(s);
+  } 
+  while (val != val1);
+  return val;
+}
+
+uint16_t W5200Class::getRXReceivedSize(SOCKET s)
+{
+  uint16_t val=0,val1=0;
+  do {
+    val1 = readSnRX_RSR(s);
+    if (val1 != 0)
+      val = readSnRX_RSR(s);
+  } 
+  while (val != val1);
+  return val;
+}
+
+
+void W5200Class::send_data_processing(SOCKET s, const uint8_t *data, uint16_t len)
+{
+  // This is same as having no offset in a call to send_data_processing_offset
+  send_data_processing_offset(s, 0, data, len);
+}
+
+void W5200Class::send_data_processing_offset(SOCKET s, uint16_t data_offset, const uint8_t *data, uint16_t len)
+{
+  uint16_t ptr = readSnTX_WR(s);
+  ptr += data_offset;
+  uint16_t offset = ptr & SMASK;
+  uint16_t dstAddr = offset + SBASE[s];
+
+  if (offset + len > SSIZE) 
+  {
+    // Wrap around circular buffer
+    uint16_t size = SSIZE - offset;
+    write(dstAddr, data, size);
+    write(SBASE[s], data + size, len - size);
+  } 
+  else {
+    write(dstAddr, data, len);
+  }
+
+  ptr += len;
+  writeSnTX_WR(s, ptr);
+}
+
+
+void W5200Class::recv_data_processing(SOCKET s, uint8_t *data, uint16_t len, uint8_t peek)
+{
+  uint16_t ptr;
+  ptr = readSnRX_RD(s);
+  read_data(s, (uint8_t *)ptr, data, len);
+  if (!peek)
+  {
+    ptr += len;
+    writeSnRX_RD(s, ptr);
+  }
+}
+
+void W5200Class::read_data(SOCKET s, volatile uint8_t *src, volatile uint8_t *dst, uint16_t len)
+{
+  uint16_t size;
+  uint16_t src_mask;
+  uint16_t src_ptr;
+
+  //src_mask = (uint16_t)src & RMASK;
+  src_mask = (int)src & RMASK;
+  src_ptr = RBASE[s] + src_mask;
+
+  if( (src_mask + len) > RSIZE ) 
+  {
+    size = RSIZE - src_mask;
+    read(src_ptr, (uint8_t *)dst, size);
+    dst += size;
+    read(RBASE[s], (uint8_t *) dst, len - size);
+  } 
+  else
+    read(src_ptr, (uint8_t *) dst, len);
+}
+
+
+uint8_t W5200Class::write(uint16_t _addr, uint8_t _data)
+{
+  setSS();  
+  
+  pSPI->write(_addr >> 8);
+  pSPI->write(_addr & 0xFF);
+  pSPI->write(0x80);
+  pSPI->write(0x01);
+  pSPI->write(_data);
+  resetSS();
+  return 1;
+}
+
+uint16_t W5200Class::write(uint16_t _addr, const uint8_t *_buf, uint16_t _len)
+{
+    setSS();
+    pSPI->write(_addr >> 8);
+    pSPI->write(_addr & 0xFF);
+    pSPI->write((0x80 | ((_len & 0x7F00) >> 8)));
+    pSPI->write(_len & 0x00FF);
+
+  for (uint16_t i=0; i<_len; i++)
+  {
+    pSPI->write(_buf[i]);
+  }
+  resetSS();
+ 
+  return _len;
+}
+
+uint8_t W5200Class::read(uint16_t _addr)
+{
+  setSS();  
+  pSPI->write(_addr >> 8);
+  pSPI->write(_addr & 0xFF);
+  pSPI->write(0x00);
+  pSPI->write(0x01);
+  uint8_t _data = pSPI->write(0);
+  resetSS();
+  return _data;
+}
+
+uint16_t W5200Class::read(uint16_t _addr, uint8_t *_buf, uint16_t _len)
+{
+    setSS();
+    pSPI->write(_addr >> 8);
+    pSPI->write(_addr & 0xFF);
+    pSPI->write((0x00 | ((_len & 0x7F00) >> 8)));
+    pSPI->write(_len & 0x00FF);
+
+    for (uint16_t i=0; i<_len; i++)
+    {
+        _buf[i] = pSPI->write(0);
+    }
+    resetSS();
+    return _len;
+}
+
+void W5200Class::execCmdSn(SOCKET s, SockCMD _cmd) {
+  // Send command to socket
+  writeSnCR(s, _cmd);
+  // Wait for command to complete
+  while (readSnCR(s))
+    ;
+}