Daniele Lacamera / PicoTCP Featured

Free (GPLv2) TCP/IP stack developed by TASS Belgium

Dependents:   lpc1768-picotcp-demo ZeroMQ_PicoTCP_Publisher_demo TCPSocket_HelloWorld_PicoTCP Pico_TCP_UDP_Test ... more

PicoTCP. Copyright (c) 2013 TASS Belgium NV.

Released under the GNU General Public License, version 2.

Different licensing models may exist, at the sole discretion of the Copyright holders.

Official homepage: http://www.picotcp.com

Bug tracker: https://github.com/tass-belgium/picotcp/issues

Development steps:

  • initial integration with mbed RTOS
  • generic mbed Ethernet driver
  • high performance NXP LPC1768 specific Ethernet driver
  • Multi-threading support for mbed RTOS
  • Berkeley sockets and integration with the New Socket API
  • Fork of the apps running on top of the New Socket API
  • Scheduling optimizations
  • Debugging/benchmarking/testing

Demo application (measuring TCP sender performance):

Import programlpc1768-picotcp-demo

A PicoTCP demo app testing the ethernet throughput on the lpc1768 mbed board.

Last commit 17 May 2013 by TASS Belgium

modules/pico_dev_loop.c

Committer:
tass
Date:
2013-09-26
Revision:
70:cd218dd180e5
Parent:
68:0847e35d08a6
Child:
131:4758606c9316

File content as of revision 70:cd218dd180e5:

/*********************************************************************
PicoTCP. Copyright (c) 2012 TASS Belgium NV. Some rights reserved.
See LICENSE and COPYING for usage.

Authors: Daniele Lacamera
*********************************************************************/


#include "pico_device.h"
#include "pico_dev_loop.h"
#include "pico_stack.h"


#define LOOP_MTU 1500
static uint8_t l_buf[LOOP_MTU];
static uint32_t l_bufsize = 0;


static int pico_loop_send(struct pico_device *dev, void *buf, int len)
{
	IGNORE_PARAMETER(dev);
	if (len > LOOP_MTU)
    return 0;

  if (l_bufsize == 0) {
    memcpy(l_buf, buf, len);
    l_bufsize+=len;
    return len;
  }
  return 0;
}

static int pico_loop_poll(struct pico_device *dev, int loop_score)
{
  if (loop_score <= 0)
    return 0;

  if (l_bufsize > 0) {
    pico_stack_recv(dev, l_buf, l_bufsize);
    l_bufsize = 0;
    loop_score--;
  }
  return loop_score;
}

/* Public interface: create/destroy. */

void pico_loop_destroy(struct pico_device *dev)
{
	IGNORE_PARAMETER(dev);
}

struct pico_device *pico_loop_create(void)
{
  struct pico_device *loop = pico_zalloc(sizeof(struct pico_device));
  if (!loop)
    return NULL;

  if( 0 != pico_device_init((struct pico_device *)loop, "loop", NULL)) {
    dbg ("Loop init failed.\n");
    pico_loop_destroy((struct pico_device *)loop);
    return NULL;
  }
  loop->send = pico_loop_send;
  loop->poll = pico_loop_poll;
  loop->destroy = pico_loop_destroy;
  dbg("Device %s created.\n", loop->name);
  return (struct pico_device *)loop;
}