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nes-proj/examples/sky/tcprudolph0.c

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/*
* Copyright (c) 2005, Swedish Institute of Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* @(#)$Id: tcprudolph0.c,v 1.8 2007/11/17 18:16:48 adamdunkels Exp $
*/
#include <stdio.h>
#include <string.h>
#include "contiki.h"
#include "sys/etimer.h"
#include "loader/elfloader.h"
#include "net/uip.h"
#include "dev/leds.h"
#include "cfs/cfs.h"
#include "codeprop.h"
#include "net/rime/rudolph0.h"
#include <io.h>
#define DEBUG 0
#if DEBUG
#include <stdio.h>
#define PRINTF(...) printf(__VA_ARGS__)
#else
#define PRINTF(...)
#endif
PROCESS(tcp_loader_process, "TCP loader");
AUTOSTART_PROCESSES(&tcp_loader_process);
static
struct codeprop_state {
u16_t addr;
u16_t len;
struct pt tcpthread_pt;
int fd;
} s;
static char msg[30 + 10];
static struct rudolph0_conn rudolph0;
/*---------------------------------------------------------------------*/
static int
start_program(void)
{
/* Link, load, and start new program. */
int ret;
s.fd = cfs_open("codeprop.out", CFS_READ);
ret = elfloader_load(s.fd);
/* XXX: Interrupts seems to be turned off a little too long during the
ELF loading process, so we need to "manually" trigger a timer
interrupt here. */
TACCR1 = TAR + 1000;
if(ret == ELFLOADER_OK) {
sprintf(msg, "ok\n");
PRINTF("Ok, starting new program.\n");
/* Start processes. */
autostart_start(elfloader_autostart_processes);
} else {
sprintf(msg, "err %d %s", ret, elfloader_unknown);
PRINTF("Error: '%s'.\n", msg);
}
cfs_close(s.fd);
return ret;
}
/*---------------------------------------------------------------------*/
static
PT_THREAD(recv_tcpthread(struct pt *pt))
{
PT_BEGIN(pt);
/* Read the header. */
PT_WAIT_UNTIL(pt, uip_newdata() && uip_datalen() > 0);
if(uip_datalen() < sizeof(struct codeprop_tcphdr)) {
PRINTF(("codeprop: header not found in first tcp segment\n"));
uip_abort();
goto thread_done;
}
/* Kill old program. */
rudolph0_stop(&rudolph0);
/* elfloader_unload();*/
s.len = htons(((struct codeprop_tcphdr *)uip_appdata)->len);
s.addr = 0;
uip_appdata += sizeof(struct codeprop_tcphdr);
uip_len -= sizeof(struct codeprop_tcphdr);
s.fd = cfs_open("codeprop.out", CFS_WRITE);
cfs_close(s.fd);
/* xmem_erase(XMEM_ERASE_UNIT_SIZE, EEPROMFS_ADDR_CODEPROP);*/
/* Read the rest of the data. */
do {
leds_toggle(LEDS_RED);
if(uip_len > 0) {
s.fd = cfs_open("codeprop.out", CFS_WRITE + CFS_APPEND);
cfs_seek(s.fd, s.addr);
/* xmem_pwrite(uip_appdata, uip_len, EEPROMFS_ADDR_CODEPROP + s.addr);*/
cfs_write(s.fd, uip_appdata, uip_len);
cfs_close(s.fd);
PRINTF("Wrote %d bytes to file\n", uip_len);
s.addr += uip_len;
}
if(s.addr < s.len) {
PT_YIELD_UNTIL(pt, uip_newdata());
}
} while(s.addr < s.len);
leds_off(LEDS_RED);
#if DEBUG
{
int i, fd, j;
printf("Contents of file:\n");
fd = cfs_open("codeprop.out", CFS_READ);
j = 0;
printf("\n0x%04x: ", 0);
for(i = 0; i < s.len; ++i) {
unsigned char byte;
cfs_read(fd, &byte, 1);
printf("0x%02x, ", byte);
++j;
if(j == 8) {
printf("\n0x%04x: ", i + 1);
j = 0;
}
clock_delay(400);
}
cfs_close(fd);
}
#endif
int ret;
ret = start_program();
#if NETSIM
rudolph0_send(&rudolph0, CLOCK_SECOND / 4);
#else /* NETSIM */
if(ret == ELFLOADER_OK) {
/* Propagate program. */
rudolph0_send(&rudolph0, CLOCK_SECOND / 4);
}
#endif /* NETSIM */
/* Return "ok" message. */
do {
ret = strlen(msg);
uip_send(msg, ret);
PT_WAIT_UNTIL(pt, uip_acked() || uip_rexmit() || uip_closed());
} while(uip_rexmit());
/* Close the connection. */
uip_close();
thread_done:;
PT_END(pt);
}
/*---------------------------------------------------------------------*/
static void
write_chunk(struct rudolph0_conn *c, int offset, int flag,
uint8_t *data, int datalen)
{
int fd;
leds_toggle(LEDS_YELLOW);
if(flag == RUDOLPH0_FLAG_NEWFILE) {
printf("+++ rudolph0 new file incoming at %u\n", clock_time());
fd = cfs_open("codeprop.out", CFS_WRITE);
if(elfloader_autostart_processes != NULL) {
PRINTF("Stopping old programs.\n");
autostart_exit(elfloader_autostart_processes);
elfloader_autostart_processes = NULL;
}
} else {
fd = cfs_open("codeprop.out", CFS_WRITE + CFS_APPEND);
}
if(datalen > 0) {
int ret;
cfs_seek(fd, offset);
ret = cfs_write(fd, data, datalen);
/* printf("write_chunk wrote %d bytes at %d, %d\n", ret, offset, (unsigned char)data[0]);*/
}
cfs_close(fd);
if(flag == RUDOLPH0_FLAG_LASTCHUNK) {
printf("+++ rudolph0 entire file received at %u\n", clock_time());
start_program();
leds_off(LEDS_YELLOW);
}
}
static int
read_chunk(struct rudolph0_conn *c, int offset, uint8_t *to, int maxsize)
{
int fd;
int ret;
leds_toggle(LEDS_GREEN);
fd = cfs_open("codeprop.out", CFS_READ);
cfs_seek(fd, offset);
ret = cfs_read(fd, to, maxsize);
/* printf("read_chunk %d bytes at %d, %d\n", ret, offset, (unsigned char)to[0]);*/
if(ret < maxsize) {
leds_off(LEDS_GREEN);
}
cfs_close(fd);
return ret;
}
const static struct rudolph0_callbacks rudolph0_call = {write_chunk,
read_chunk};
/*---------------------------------------------------------------------*/
PROCESS_THREAD(tcp_loader_process, ev, data)
{
PROCESS_BEGIN();
rudolph0_open(&rudolph0, 20, &rudolph0_call);
tcp_listen(HTONS(CODEPROP_DATA_PORT));
while(1) {
PROCESS_YIELD();
if(ev == tcpip_event && uip_conn->lport == HTONS(CODEPROP_DATA_PORT)) {
if(uip_connected()) { /* Really uip_connecting()!!! */
if(data == NULL) {
PT_INIT(&s.tcpthread_pt);
process_poll(&tcp_loader_process);
tcp_markconn(uip_conn, &s);
if(elfloader_autostart_processes != NULL) {
PRINTF("Stopping old programs.\n");
autostart_exit(elfloader_autostart_processes);
elfloader_autostart_processes = NULL;
}
} else {
PRINTF(("codeprop: uip_connected() and data != NULL\n"));
uip_abort();
}
}
recv_tcpthread(&s.tcpthread_pt); /* Run thread */
if(uip_closed() || uip_aborted() || uip_timedout()) {
PRINTF(("codeprop: connection down\n"));
tcp_markconn(uip_conn, NULL);
}
}
}
PROCESS_END();
}
/*---------------------------------------------------------------------*/
#include "net/rime/tree.h"
#include "net/rime/mesh.h"
#include "net/rime/rudolph0.h"
#include "net/rime/rudolph1.h"
void
dummy(void)
{
/* Make sure that all Rime modules are present in the core */
tree_close(NULL);
mesh_close(NULL);
ipolite_close(NULL);
polite_close(NULL);
ruc_close(NULL);
sibc_close(NULL);
rudolph0_close(NULL);
rudolph1_close(NULL);
/* Make sure psock is included */
psock_datalen(NULL);
}
/*---------------------------------------------------------------------*/
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