static void bfun(long t)
{
RT_MSGQ *smbx, **rmbx;
int *msg, mtype, i, n;
rmbx = rt_malloc(NTASKS*sizeof(int));
msg = rt_malloc((MAXSIZ + 1)*sizeof(int));
smbx = rt_named_msgq_init("SMSG", 0, 0);
for (i = 0; i < NTASKS; i++) {
char mname[6] = "RMBX";
mname[4] = i + '0';
mname[5] = 0;
rmbx[i] = rt_named_msgq_init(mname, 0, 0);
}
rt_sem_wait_barrier(&barrier);
while (end < NTASKS) {
rt_msg_receive(smbx, msg, sizeof(int)*(MAXSIZ + 1), &mtype);
n = 0;
for (i = 1; i < MAXSIZ; i++) {
n += msg[i];
}
if (msg[MAXSIZ] != n) {
rt_printk("SERVER RECEIVED AN UNKNOWN MSG.\n");
goto prem;
}
msg[1] = 0xFFFFFFFF;
rt_msg_send(rmbx[msg[0]], msg, 2*sizeof(int), 1);
}
prem:
rt_free(rmbx);
rt_free(msg);
rt_printk("SERVER TASK ENDS.\n");
}
int main(void)
{
RT_TASK *task;
RTIME now;
int cnt=0;
// make main thread LXRT soft realtime
task = rt_task_init_schmod(nam2num("MYTASK"), 9, 0, 0, SCHED_FIFO, 0xF);
mlockall(MCL_CURRENT | MCL_FUTURE);
// start realtime timer and scheduler
//rt_set_oneshot_mode();
rt_set_periodic_mode();
start_rt_timer(0);
now = rt_get_time() + 10*PERIOD;
rt_task_make_periodic(task, now, PERIOD);
printf("Init mutex and cond.\n");
mutex = rt_sem_init(nam2num("MUTEX"), 1);
if (mutex==0)
printf("Error init mutex\n");
cond = rt_cond_init(nam2num("CONDITION"));
if (cond==0)
printf("Error init cond\n");
thread0 = rt_thread_create(fun0, NULL, 10000);
//thread1 = rt_thread_create(fun1, NULL, 20000);
//rt_sleep(PERIOD);
while (cnt < THRESHOLD) {
rt_task_wait_period();
rt_printk("main: Hello World %d!\n",cnt);
rt_sem_wait(mutex); //now the mutex should have value 0
if (instance_cnt==0) {
rt_sem_signal(mutex); //now the mutex should have vaule 1
rt_printk("worker thread busy!\n");
} else {
instance_cnt++;
rt_cond_signal(cond);
rt_sem_signal(mutex); //now the mutex should have vaule 1
rt_printk("signaling worker thread to start!\n");
}
cnt++;
}
// wait for end of program
printf("TYPE <ENTER> TO TERMINATE\n");
getchar();
// cleanup
stop_rt_timer();
return 0;
}
void send_msg(void *arg)
{
int ret;
struct msghdr msg;
struct iovec iov[2];
unsigned short msgsize = size;
while(1)
{
iov[0].iov_base = &msgsize;
iov[0].iov_len = sizeof(msgsize);
iov[1].iov_base = buffer_out;
iov[1].iov_len = size;
memset(&msg, 0, sizeof(msg));
msg.msg_name = &dest_addr;
msg.msg_namelen = sizeof(dest_addr);
msg.msg_iov = iov;
msg.msg_iovlen = 2;
rt_printk("Sending message of %d+2 bytes\n", size);
ret = rt_socket_sendmsg(sock, &msg, 0);
if (ret != (int)(sizeof(msgsize) + size))
rt_printk(" rt_socket_sendmsg() = %d!\n", ret);
rt_task_wait_period();
}
}
static void sender(long nothing)
{
int diff = 0, warmup = 1000000000/WORKCYCLE;
RTIME t, tb;
struct sample { unsigned long cnt; RTIME tx, rx; } samp = { 0, 0, 0 };
rt_printk("RtnetTest: Transmitter task initialised\n");
tb = t = rt_get_real_time_ns();
while(!end) {
slen = sprintf(buffer_out, "%lld", t);
slen = rt_dev_sendto(sock, buffer_out, slen, 0, (struct sockaddr*)&tx_addr, sizeof(tx_addr));
if (slen < 0) {
rt_printk("RtnetTest: Packet send failed! Errno %d\n", -slen);
return;
}
rt_task_wait_period();
t = rt_get_real_time_ns();
if (!warmup) {
diff = abs((int)(t - tb - WORKCYCLE));
samp.cnt++;
tb = t;
if (diff > samp.rx) samp.rx = diff;
rt_mbx_send_if(mbx, &samp, sizeof(samp));
} else {
tb = rt_get_real_time_ns();
warmup--;
}
}
}
/***
* rt_unregister_rtnetdev: unregister a rtnet_device
* @rtdev: the device
*/
int rt_unregister_rtnetdev(struct rtnet_device *rtdev)
{
struct net_device *d, **dp, *dev = dev_get_by_rtdev(rtdev);
rt_printk("RTnet: rt_unregister_netdevice(%s)\n", dev->name);
/* If device is running, close it first. */
if (dev->flags & IFF_UP)
rtdev_close(rtdev);
dev->deadbeaf = 1;
/* And unlink it from device chain. */
for (dp = &dev_base; (d=*dp)!=NULL; dp=&d->next) {
if (d==dev) {
write_lock(&dev_base_lock);
*dp = d->next;
write_unlock(&dev_base_lock);
break;
}
}
if ( !d ) {
rt_printk("RTnet: device %s/%p never was registered\n", dev->name, dev);
return -ENODEV;
}
clear_bit(__LINK_STATE_PRESENT, &dev->state);
if ( dev->uninit )
dev->uninit(dev);
return 0;
}
static void timer_tick(void)
{
rt_times.tick_time = rt_times.intr_time;
rt_times.intr_time = rt_times.tick_time + rt_times.periodic_tick;
rt_set_timer_delay(0);
if (rt_times.tick_time >= rt_times.linux_time) {
rt_times.linux_time += rt_times.linux_tick;
rt_pend_linux_irq(TIMER_8254_IRQ);
}
if (run) {
if (rt_waiting_return(tasknode, taskport)) {
overuns++;
}
switch(run) {
case 1: RT_sem_signal(tasknode, -taskport, rmt_sem);
rt_printk("SEM SIGNAL %d\n", ++cnt);
break;
case 2:
RT_task_resume(tasknode, -taskport, rmt_task);
rt_printk("TASK RESUME %d\n", ++cnt);
break;
case 3:
RT_send_if(tasknode, -taskport, rmt_task, run);
rt_printk("TASK SEND %d\n", ++cnt);
break;
}
}
}
static void bfun(long t)
{
unsigned long long msg;
unsigned long long name = 0xccccccccccccccccLL;
while (1) {
cpu_used[hard_cpu_id()]++;
msg = 0LL;
bstat = 'r';
rt_mbx_receive(&smbx, &msg, sizeof(msg));
if (msg == 0x1122334455667788LL) {
t = 0;
} else {
if (msg == 0x99aabbccddeeff00LL) {
t = 1;
} else {
rt_printk("SERVER RECEIVED AN UNKNOWN MSG: %x%x, STAT: %c %c %c.\n", ((int *)&msg)[1], ((int *)&msg)[0], mstat[0], mstat[1], bstat);
t = 0;
goto prem;
}
}
bstat = '0' + t;
rt_mbx_send(&rmbx[t], &name, sizeof(name));
}
prem:
premature = PREMATURE;
rt_printk("SERVER TASK ENDS PREMATURELY.\n");
}
/***
* rtskb_pool_release
*/
int rtskb_pool_release(void)
{
int err = 0;
if ( rt_free_srq (dec_pool_srq)<0 ) {
rt_printk("RTnet: deallocating 'dec_pool_srq=%d' failed.\n", dec_pool_srq);
return dec_pool_srq;
}
if ( rt_free_srq (inc_pool_srq)<0 ) {
rt_printk("RTnet: deallocating 'inc_pool_srq=%d' failed.\n", inc_pool_srq);
return inc_pool_srq;
}
if ( rtskb_pool.qlen>0 ) {
int i;
for (i=rtskb_pool.qlen; i>0; i--)
dispose_rtskb(__rtskb_dequeue(&rtskb_pool));
}
if ( rtskb_data_cache && kmem_cache_destroy (rtskb_data_cache) ) {
rt_printk("RTnet: deallocating 'rtskb_data_cache' failed.\n");
}
if ( rtskb_cache && kmem_cache_destroy (rtskb_cache) ) {
rt_printk("RTnet: deallocating 'rtnet_skb_cache' failed.\n");
}
return err;
}
void taskh_func(long tid)
{
RTIME time;
unsigned int msg = 0, wait;
rt_send(&taskm, msg);
rt_send(&taskl, msg);
while (1) {
rt_receive(&taskm, &msg);
time = rt_get_time_ns();
if (MUTEX_LOCK(&mutex) <= 1) {
if ((wait = (int)(rt_get_time_ns() - time)) > 250000) {
rt_printk("PRIORITY INVERSION, WAITED FOR %d us\n", wait/1000);
} else {
rt_printk("NO PRIORITY INVERSION, WAITED FOR %d us\n", wait/1000);
}
if (SemType) {
MUTEX_LOCK(&mutex);
MUTEX_LOCK(&mutex);
rt_busy_sleep(100000);
MUTEX_LOCK(&mutex);
}
rt_busy_sleep(100000);
if (SemType) {
rt_sem_signal(&mutex);
rt_busy_sleep(100000);
rt_sem_signal(&mutex);
rt_sem_signal(&mutex);
}
rt_sem_signal(&mutex);
} else {
rt_task_suspend(0);
}
}
}
/***
* rt_unregister_rtnetdev: unregister a rtnet_device
* @rtdev: the device
*/
int rt_unregister_rtnetdev(struct rtnet_device *rtdev)
{
struct rtnet_device *d, **dp;
unsigned long flags;
rt_printk("RTnet: rt_unregister_netdevice(%s)\n", rtdev->name);
/* If device is running, close it first. */
if (rtdev->flags & IFF_UP)
rtdev_close(rtdev);
hard_save_flags_and_cli(flags);
write_lock(&rtnet_devices_lock);
/* Unlink it from device chain. */
for (dp = &rtnet_devices; (d=*dp)!=NULL; dp=&d->next) {
if (d==rtdev) {
*dp = d->next;
break;
}
}
write_unlock(&rtnet_devices_lock);
hard_restore_flags(flags);
if ( !d ) {
rt_printk("RTnet: device %s/%p never was registered\n", rtdev->name, rtdev);
return -ENODEV;
}
clear_bit(__LINK_STATE_PRESENT, &rtdev->state);
return 0;
}
static void bfun(int t)
{
int smbx, *rmbx, *msg, mtype, i, n;
rmbx = rt_malloc(NTASKS*sizeof(int));
msg = rt_malloc((MAXSIZ + 1)*sizeof(int));
smbx = rt_msgget(nam2num("SMSG"), 0);
for (i = 0; i < NTASKS; i++) {
char mname[6] = "RMBX";
mname[4] = i + '0';
mname[5] = 0;
rmbx[i] = rt_msgget(nam2num(mname), 0);
}
rt_sem_wait_barrier(&barrier);
while (end < NTASKS) {
rt_msgrcv_nu(smbx, &mtype, msg, sizeof(int)*(MAXSIZ + 1), 1, 0);
n = 0;
for (i = 1; i < MAXSIZ; i++) {
n += msg[i];
}
if (msg[MAXSIZ] != n) {
rt_printk("SERVER RECEIVED AN UNKNOWN MSG.\n");
goto prem;
}
msg[1] = 0xFFFFFFFF;
rt_msgsnd_nu(rmbx[msg[0]], 1, msg, 2*sizeof(int), 0);
}
prem:
rt_free(rmbx);
rt_free(msg);
rt_printk("SERVER TASK ENDS.\n");
}
static RTAI_SYSCALL_MODE int _comedi_get_krange(void *dev, unsigned int subdev, unsigned int chan, unsigned int range, comedi_krange *krange)
{
rt_printk("COMEDI GET KRANGE: dev = %p, subdev = %u, chan = %u, range = %u.\n", dev, subdev, chan, range);
rt_printk("COMEDI GET KRANGE RETURNS %d, %d, %u.\n", RANGE_MIN, RANGE_MAX, RANGE_FLAGS);
*krange = (comedi_krange){ RANGE_MIN, RANGE_MAX, RANGE_FLAGS};
return 0;
}
RTAI_SYSCALL_MODE char *rt_comedi_get_driver_name(void *dev, char *name)
{
rt_printk("COMEDI GET DRIVER NAME: dev = %x.\n", dev);
strncpy(name, DRIVER_NAME, COMEDI_NAMELEN);
rt_printk("COMEDI GET DRIVER NAME RETURNS %s.\n", DRIVER_NAME);
return name;
}
/***
* do_stacktask
*/
static void do_stacktask(int mgr_id)
{
struct rtnet_msg msg;
struct rtnet_mgr *mgr = (struct rtnet_mgr *)mgr_id;
rt_printk("RTnet: stack-mgr started\n");
while(1) {
rt_mbx_receive(&(mgr->mbx), &msg, sizeof(struct rtnet_msg));
if ( (msg.rtdev) && (msg.msg_type==Rx_PACKET) ) {
while ( !rtskb_queue_empty(&msg.rtdev->rxqueue) ) {
struct rtskb *skb = rtskb_dequeue(&msg.rtdev->rxqueue);
if ( skb ) {
unsigned short hash = ntohs(skb->protocol) & (MAX_RT_PROTOCOLS-1);
struct rtpacket_type *pt = rt_packets[hash];
skb->nh.raw = skb->data;
if (pt) {
pt->handler (skb, skb->rtdev, pt);
} else {
rt_printk("RTnet: undefined Layer-3-Protokoll\n");
kfree_rtskb(skb);
}
}
}
}
}
}
int main(void)
{
int i, srq, count = 0, nextcount = 0, repeat;
rt_thread_init(nam2num("MNTSK"), 100, 0, SCHED_FIFO, 0x1);
rt_printk("\nTESTING THE SCHEDULER WITH SRQs [%d LOOPs].\n", LOOPS);
repeat = 1000000000LL/((long long)DELAY*(long long)PRINT_FREQ);
srq = rtai_open_srq(0xcacca);
start_rt_timer(0);
rt_grow_and_lock_stack(100000);
#ifdef MAKE_HARD
MAKE_HARD();
#endif
for (i = 0; i < LOOPS; i++) {
rtai_srq(srq, (unsigned long)nano2count(DELAY));
if (++count > nextcount) {
nextcount += repeat;
rt_printk(">>> %d.\n", nextcount);
}
}
rt_make_soft_real_time();
stop_rt_timer();
rt_task_delete(NULL);
rt_printk("END SCHEDULER TEST WITH SRQs.\n\n");
return 0;
}
void __do_atexit( void )
{
func_ptr *p = atexit_function_tab;
rt_printk("__do_atexit START\n");
// we check if the pointer is NULL, this
// can happen when a second C++ modules is loaded
// and than unloaded. At unload time the second module
// will call the atexit handlers and delete
// the function table
if( atexit_function_tab == 0 ){
rt_printk("atexit_function_tab == NULL\n");
return;
}
while(*p)
{
rt_printk("calling atexit function %p\n",p );
(*(p))();
p++;
if( atexit_function_tab_len-- )
break;
}
vfree( atexit_function_tab );
atexit_function_tab_size = 0;
atexit_function_tab_len = 0;
atexit_function_tab = 0;
rt_printk("__do_atexit END\n");
}
RTAI_SYSCALL_MODE char *rt_comedi_get_board_name(void *dev, char *name)
{
rt_printk("COMEDI GET BOARD NAME: dev = %p.\n", dev);
strncpy(name, BOARD_NAME, COMEDI_NAMELEN);
rt_printk("COMEDI GET BOARD NAME RETURNS %s.\n", BOARD_NAME);
return name;
}
int __init hello_init(void)
{
RTIME sampling;
rt_printk(KERN_INFO "TESTE - *************************** INICIO *******************************\n");
rt_task_init(&Task_1, signalIchi, 0, 3000, 0, 0, NULL);
rt_task_init(&Task_2, signalNi, 0, 3000, 0, 0, NULL);
rt_task_init(&Task_3, signalSan, 0, 3000, 0, 0, NULL);
sampling = start_rt_timer(nano2count(TICK));
rt_sem_init(&rMutex, 1);
rt_task_make_periodic(&Task_1, rt_get_time() + sampling * 16, sampling * 16);
rt_task_make_periodic(&Task_2, rt_get_time() + sampling * 18, sampling * 18);
rt_task_make_periodic(&Task_3, rt_get_time() + sampling * 30, sampling * 30);
rt_change_prio(&Task_1, 2);
rt_change_prio(&Task_2, 1);
rt_change_prio(&Task_3, 3);
rt_printk(KERN_INFO "Init module function\n");
return 0;
}
void __exit hello_clean(void)
{
rt_task_delete(&Task_1);
rt_task_delete(&Task_2);
rt_task_delete(&Task_3);
rt_printk(KERN_INFO "Cleanup module function\n");
rt_printk(KERN_INFO "-----------------------\n");
}
static RTAI_SYSCALL_MODE int _comedi_data_read(void *dev, unsigned int subdev, unsigned int chan, unsigned int range, unsigned int aref, lsampl_t *data)
{
RTAI_COMEDI_LOCK(dev, subdev);
rt_printk("COMEDI DATA READ: dev = %p, subdev = %u, chan = %u, range = %u, aref = %x.\n", dev, subdev, chan, range, aref);
data[0] = 0xabcdea;
rt_printk("COMEDI DATA READ RETURNS %x.\n", data[0]);
RTAI_COMEDI_UNLOCK(dev, subdev);
return 1;
}
static RTAI_SYSCALL_MODE int _comedi_dio_bitfield(void *dev, unsigned int subdev, unsigned int write_mask, unsigned int *bits)
{
RTAI_COMEDI_LOCK(dev, subdev);
rt_printk("COMEDI DIO BITFIELD: dev = %p, subdev = %u, write_mask = %x, bits = %x.\n", dev, subdev, write_mask, bits[0]);
bits[0] |= 0xFFFFFFFF;
rt_printk("COMEDI DIO BITFIELD RETURNS %x.\n", bits[0]);
RTAI_COMEDI_UNLOCK(dev, subdev);
return 1;
}
static RTAI_SYSCALL_MODE int _comedi_dio_read(void *dev, unsigned int subdev, unsigned int chan, unsigned int *val)
{
RTAI_COMEDI_LOCK(dev, subdev);
rt_printk("COMEDI DIO READ: dev = %p, subdev = %u, chan = %u.\n", dev, subdev, chan);
val[0] = 0xFFFFFFFF;
rt_printk("COMEDI DIO READ RETURNS %x.\n", val[0]);
RTAI_COMEDI_UNLOCK(dev, subdev);
return 1;
}
void prh1(unsigned long data)
{
if (prtloops++ < LOOPS) {
rt_printk("\nFIRED NEW PERIODIC: %3d, %lx", prtloops, data);
} else {
rt_printk("\n");
rt_remove_timer(&prt);
}
}
static void alloc_collector(struct rtskb *skb, struct rtsocket *sock)
{
int i;
unsigned int flags;
struct ip_collector *p_coll;
struct iphdr *iph = skb->nh.iph;
/* Find free collector */
for (i = 0; i < COLLECTOR_COUNT; i++)
{
p_coll = &collector[i];
flags = rt_spin_lock_irqsave(&p_coll->frags.lock);
/*
* This is a very simple version of a garbage collector.
* Whenver the last access to any of the collectors is a while ago,
* the collector will be freed...
* Under normal conditions, it should never be necessary to collect
* the garbage.
* */
if (p_coll->in_use &&
(counter - p_coll->last_accessed > GARBAGE_COLLECT_LIMIT))
{
kfree_rtskb(p_coll->frags.first);
p_coll->in_use = 0;
rt_printk("RTnet: IP fragmentation garbage collection "
"(saddr:%x, daddr:%x)\n",
p_coll->saddr, p_coll->daddr);
}
/* Collector (now) free? */
if (!p_coll->in_use)
{
p_coll->in_use = 1;
p_coll->last_accessed = counter;
p_coll->buf_size = skb->len;
p_coll->frags.first = skb;
p_coll->frags.last = skb;
p_coll->saddr = iph->saddr;
p_coll->daddr = iph->daddr;
p_coll->id = iph->id;
p_coll->protocol = iph->protocol;
p_coll->sock = sock;
rt_spin_unlock_irqrestore(flags, &p_coll->frags.lock);
return;
}
rt_spin_unlock_irqrestore(flags, &p_coll->frags.lock);
}
rt_printk("RTnet: IP fragmentation - no collector available\n");
kfree_rtskb(skb);
}
static RTAI_SYSCALL_MODE int _comedi_data_read_delayed(void *dev, unsigned int subdev, unsigned int chan, unsigned int range, unsigned int aref, lsampl_t *data, unsigned int nanosec)
{
RTAI_COMEDI_LOCK(dev, subdev);
rt_printk("COMEDI DATA READ DELAYED: dev = %p, subdev = %u, chan = %u, range = %u, aref = %x, nanosec = %u.\n", dev, subdev, chan, range, aref, nanosec);
rt_sleep(nano2count(nanosec));
data[0] = 0xcaccae;
rt_printk("COMEDI DATA READ DELAYED RETURNS %x.\n", data[0]);
RTAI_COMEDI_UNLOCK(dev, subdev);
return 1;
}
static RTAI_SYSCALL_MODE int _comedi_poll(void *dev, unsigned int subdev)
{
int retval;
RTAI_COMEDI_LOCK(dev, subdev);
rt_printk("COMEDI POLL: dev = %p, subdev = %u.\n", dev, subdev);
retval = 33;
rt_printk("COMEDI POLL RETURNS %d.\n", retval);
RTAI_COMEDI_UNLOCK(dev, subdev);
return retval;
}
static RTAI_SYSCALL_MODE unsigned int _comedi_get_subdevice_flags(void *dev, unsigned int subdev)
{
int retval;
RTAI_COMEDI_LOCK(dev, subdev);
rt_printk("COMEDI GET SUBDEVICE FLAGS: dev = %p, subdev = %u.\n", dev, subdev);
retval = 0x77777777;
rt_printk("COMEDI GET SUBDEVICE FLAGS RETURNS %d.\n", retval);
RTAI_COMEDI_UNLOCK(dev, subdev);
return retval;
}
static RTAI_SYSCALL_MODE int _comedi_get_buf_head_pos(void * dev, unsigned int subdev)
{
int retval;
RTAI_COMEDI_LOCK(dev, subdev);
rt_printk("COMEDI GET BUF HEAD POS: dev = %p, subdev = %u.\n", dev, subdev);
retval = 123456789;
rt_printk("COMEDI GET BUF HEAD POS RETURNS %d.\n", retval);
RTAI_COMEDI_UNLOCK(dev, subdev);
return retval;
}
RTAI_SYSCALL_MODE long rt_comedi_command_data_write(void *dev, unsigned int subdev, long nchans, lsampl_t *data)
{
int i;
RTAI_COMEDI_LOCK(dev, subdev);
rt_printk("COMEDI COMMAND WRITE: dev = %p, subdev = %u, nchans = %u.\n", dev, subdev, nchans);
for (i = 0; i < nchans; i++) {
rt_printk("CHAN = %d, data = %x.\n", i, data[i]);
}
RTAI_COMEDI_UNLOCK(dev, subdev);
return nchans;
}
static RTAI_SYSCALL_MODE int _comedi_command(void *dev, comedi_cmd *cmdin)
{
int i;
comedi_cmd cmd = *cmdin;
RTAI_COMEDI_LOCK(dev, cmd.subdev);
rt_printk("COMEDI COMMAND: subdev = %u, flgas = %u, start_src = %u, start_arg = %u, scan_begin_src = %u, scan_begin_arg = %u, convert_src = %u, convert_arg = %u, scan_end_src = %u, scan_end_arg = %u, stop_src = %u, stop_arg = %u, chanlist_len = %u.\n", cmd.subdev, cmd.flags, cmd.start_src, cmd.start_arg, cmd.scan_begin_src, cmd.scan_begin_arg, cmd.convert_src, cmd.convert_arg, cmd.scan_end_src, cmd.scan_end_arg, cmd.stop_src, cmd.stop_arg, cmd.chanlist_len);
for (i = 0; i < cmd.chanlist_len; i++) {
rt_printk("CHANLIST: # %d, val = %u.\n", i, cmd.chanlist[i]);
}
RTAI_COMEDI_UNLOCK(dev, cmd.subdev);
return 0;
}