void *reciever_thread(void *flags_ptr){
int flags = *((int*)flags_ptr); //extract the flags
printf("entered thread\n"); //test print
//setup the scoket
int sock = socket(PF_INET, SOCK_DGRAM, 0); // setup UDP socket
struct sockaddr_in addr, client;
addr.sin_family = AF_INET;
addr.sin_port = htons(INPUT_PORT); //convert to correct byte format
addr.sin_addr.s_addr = htonl(INADDR_ANY);
bind(sock, (struct sockaddr*)&addr, sizeof(addr));
char ack = 0;
int len = sizeof(client);
//read data from
while(!kill_flag){
if(!BUFFER_FULL(in_buff_start, in_buff_end)){ //read data if space is available
//printf("Waiting\n");
int bytes = recvfrom(sock, input_buffer+(in_buff_end*frame_size),frame_size, 0,\
(struct sockaddr *)&client, &len); //get an input packet
if(bytes > 0){
//printf("Recieved %d bytes\n", bytes);
in_buff_end = (in_buff_end + 1) % MAX_BUFFER;
//printf("buffer: (%d, %d, %d)\n", in_buff_start, in_buff_end, BUFFER_SIZE(in_buff_start,in_buff_end));
bytes = sendto(sock, &ack, 1, 0, (struct sockaddr *)&client,sizeof(client));
//printf("sent %d bytes\n", bytes);
}
}
}
close(sock);
pthread_exit(NULL); //exit thread safetly
}
//function for recieving audio
void *reciever_thread(void *ptr){
audiobuffer* buf = ((comms_package*)ptr)->buf; //extract the buffer
int port = ((comms_package*)ptr)->port; //get the port
int* flag = ((comms_package*)ptr)->flag; //get the kill flag
free(ptr); //free the package's memory
//setup the scoket
int sock = socket(PF_INET, SOCK_DGRAM, 0); // setup UDP socket
if(sock == 0) printf("Error, couldn't create reciever\n"); //report the error
struct sockaddr_in addr, client; //create address structs for socket/clients
addr.sin_family = AF_INET; //using internet protocols
addr.sin_port = htons(port); //convert to correct byte format
addr.sin_addr.s_addr = htonl(INADDR_ANY); //socket is server, must accept any connection
if(bind(sock, (struct sockaddr*)&addr, sizeof(addr))) //bind socket
printf("Error, couldn't bind read socket: %s\n", strerror(errno)); //report the error
struct timeval tv; //setup the timeout
tv.tv_sec = 1;
tv.tv_usec = 0;
setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO,&tv,sizeof(tv)); //set the timeout
int true = 1;
setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,&true,sizeof(int)); //allow socket reuse
char ack = 0; //define an ack message (have to give pointer)
int len = sizeof(client); //recieve needs struct length to get client info
char decode_buf[buf->per_size]; //allocate buffer for recieving data pre decode
//read data from socket until killed
while(!(*flag) && !global_kill){
if(!BUFFER_FULL(*buf)){ //read data if space is available
int bytes = recvfrom(sock, decode_buf, buf->per_size, 0, (struct sockaddr *)&client, &len); //get an input packet
//int bytes = recvfrom(sock, GET_QUEUE_TAIL(*buf), buf->per_size, 0, (struct sockaddr *)&client, &len); //get an input packet
//printf("%d\n",bytes);
if(bytes > 0){ //ack successful packets, report error otherwise
decode(decode_buf, GET_QUEUE_TAIL(*buf), bytes); //decode the input
//write(stdout, GET_QUEUE_TAIL(*buf), buf->per_size); //DEBUG
INC_QUEUE_TAIL(*buf); //increment if successful
//bytes = sendto(sock, &ack, 1, 0, (struct sockaddr *)&client,sizeof(client)); //send an ack
//printf("got packet: %d\n",bytes);
} else printf("Error, bad socket read: %s\n", strerror(errno)); //report the error
//printf("buffer: (%d, %d, %d)\n", buf->start, buf->end, BUFFER_SIZE(*buf));
} else {
printf("Reciever Waiting\n");
usleep(PERIOD_UTIME/2);
}
}
close(sock);
free_buffer(buf);
printf("Audio Controller: Reciever Thread shutdown\n");
pthread_exit(NULL); //exit thread safetly
}
void CTP_interrupt(void)
{
REG_INT_FSIF01 = FSRX1 | FSERR1; // clear the interrupt
while (0 != (REG_EFSIF1_STATUS & RDBFx)) {
register uint32_t c = REG_EFSIF1_RXD;
if (0xaa == c) {
touch_state = STATE_X_HIGH;
} else if (0 != (0x80 & c) && (0xff != c)) {
touch_state = STATE_WAITING;
} else {
switch (touch_state) {
case STATE_WAITING:
break;
case STATE_X_HIGH:
if (0xff != c) {
x = c << 7;
}
++touch_state;
break;
case STATE_X_LOW:
if (0xff != c) {
x |= c;
}
++touch_state;
break;
case STATE_Y_HIGH:
if (0xff != c) {
y = c << 7;
}
++touch_state;
break;
case STATE_Y_LOW:
if (0xff != c) {
y |= c;
}
++touch_state;
break;
case STATE_TOUCH:
if (!BUFFER_FULL(CTPwrite, CTPread, CTPbuffer)) {
if (0x01 == c) {
CTPbuffer[CTPwrite].x = x;
CTPbuffer[CTPwrite].y = y;
CTPbuffer[CTPwrite].pressed = true;
CTPbuffer[CTPwrite].ticks = Tick_get();
BUFFER_NEXT(CTPwrite, CTPbuffer);
} else if (0x00 == c) {
CTPbuffer[CTPwrite].x = x;
CTPbuffer[CTPwrite].y = y;
CTPbuffer[CTPwrite].pressed = false;
CTPbuffer[CTPwrite].ticks = Tick_get();
BUFFER_NEXT(CTPwrite, CTPbuffer);
}
}
touch_state = STATE_WAITING;
break;
}
}
}
REG_EFSIF1_STATUS = 0; // clear errors
}
