1 files changed, 0 insertions, 231 deletions
diff --git a/host/utils/usrp-e-loopback.c b/host/utils/usrp-e-loopback.c
deleted file mode 100644
index 454d81ba7..000000000
--- a/host/utils/usrp-e-loopback.c
+++ /dev/null
@@ -1,231 +0,0 @@
-#include <stdio.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <pthread.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <stddef.h>
-#include <sys/mman.h>
-#include <linux/usrp_e.h>
-
-#define MAX_PACKET_SIZE 1016
-static int packet_data_length;
-static int error;
-
-struct pkt {
-	int len;
-	int checksum;
-	int seq_num;
-	short data[];
-};
-
-static int length_array[2048];
-static int length_array_tail = 0;
-static int length_array_head = 0;
-
-pthread_mutex_t length_array_mutex; //gotta lock the index to keep it from getting hosed
-
-//yes this is a circular buffer that does not check empty
-//no i don't want to hear about it
-void push_length_array(int length) {
-	pthread_mutex_lock(&length_array_mutex);
-	if(length_array_tail > 2047) length_array_tail = 0;
-	length_array[length_array_tail++] = length;
-	pthread_mutex_unlock(&length_array_mutex);
-}
-
-int pop_length_array(void) {
-	int retval;
-	pthread_mutex_lock(&length_array_mutex);
-	if(length_array_head > 2047) length_array_head = 0;
-	retval = length_array[length_array_head++];
-	pthread_mutex_unlock(&length_array_mutex);
-	return retval;
-}
-
-static int fp;
-
-static int calc_checksum(struct pkt *p)
-{
-	int i, sum;
-
-	i = 0;
-	sum = 0;
-
-	for (i=0; i < p->len; i++)
-		sum ^= p->data[i];
-
-	sum ^= p->seq_num;
-	sum ^= p->len;
-
-	return sum;
-}
-
-static void *read_thread(void *threadid)
-{
-	char *rx_data;
-	int cnt, prev_seq_num, pkt_count, seq_num_failure;
-	struct pkt *p;
-	unsigned long bytes_transfered, elapsed_seconds;
-	struct timeval start_time, finish_time;
-	int expected_count;
-
-	printf("Greetings from the reading thread!\n");
-
-	bytes_transfered = 0;
-	gettimeofday(&start_time, NULL);
-
-	// IMPORTANT: must assume max length packet from fpga
-	rx_data = malloc(2048);
-	p = (struct pkt *) ((void *)rx_data);
-
-	prev_seq_num = 0;
-	pkt_count = 0;
-	seq_num_failure = 0;
-
-	while (1) {
-
-		cnt = read(fp, rx_data, 2048);
-		if (cnt < 0)
-			printf("Error returned from read: %d, sequence number = %d\n", cnt, p->seq_num);
-
-//		printf("p->seq_num = %d\n", p->seq_num);
-
-
-		pkt_count++;
-
-		if (p->seq_num != prev_seq_num + 1) {
-			printf("Sequence number fail, current = %d, previous = %d, pkt_count = %d\n",
-				p->seq_num, prev_seq_num, pkt_count);
-
-			seq_num_failure ++;
-			if (seq_num_failure > 2)
-				error = 1;
-		}
-
-		expected_count = pop_length_array()*2+12;
-		if(cnt != expected_count) {
-			printf("Received %d bytes, expected %d\n", cnt, expected_count);
-		}
-
-		prev_seq_num = p->seq_num;
-
-		if (calc_checksum(p) != p->checksum) {
-			printf("Checksum fail packet = %X, expected = %X, pkt_count = %d\n",
-				calc_checksum(p), p->checksum, pkt_count);
-			error = 1;
-		}
-
-		bytes_transfered += cnt;
-
-		if (bytes_transfered > (100 * 1000000)) {
-			gettimeofday(&finish_time, NULL);
-			elapsed_seconds = finish_time.tv_sec - start_time.tv_sec;
-
-			printf("RX data transfer rate = %f K Samples/second\n",
-				(float) bytes_transfered / (float) elapsed_seconds / 4000);
-
-
-			start_time = finish_time;
-			bytes_transfered = 0;
-		}
-
-
-//		printf(".");
-//		fflush(stdout);
-//		printf("\n");
-	}
-
-}
-
-static void *write_thread(void *threadid)
-{
-	int seq_number, i, cnt;
-	void *tx_data;
-	struct pkt *p;
-
-	printf("Greetings from the write thread!\n");
-
-	tx_data = malloc(2048);
-	p = (struct pkt *) ((void *)tx_data);
-
-	for (i=0; i < packet_data_length; i++)
-//		p->data[i] = random() >> 16;
-		p->data[i] = i;
-
-	seq_number = 1;
-
-	while (1) {
-		p->seq_num = seq_number++;
-
-		if (packet_data_length > 0)
-			p->len = packet_data_length;
-		else
-			p->len = (random()<<1 & 0x1ff) + (1004 - 512);
-
-		push_length_array(p->len);
-
-		p->checksum = calc_checksum(p);
-
-		cnt = write(fp, tx_data, p->len * 2 + 12);
-		if (cnt < 0)
-			printf("Error returned from write: %d\n", cnt);
-//		sleep(1);
-	}
-}
-
-
-int main(int argc, char *argv[])
-{
-	pthread_t tx, rx;
-	pthread_mutex_init(&length_array_mutex, 0);
-	long int t;
-	struct sched_param s = {
-		.sched_priority = 1
-	};
-	void *rb;
-	struct usrp_transfer_frame *tx_rb, *rx_rb;
-
-	if (argc < 2) {
-		printf("%s data_size\n", argv[0]);
-		return -1;
-	}
-
-	packet_data_length = atoi(argv[1]);
-	if(packet_data_length > MAX_PACKET_SIZE) {
-		printf("Packet size must be smaller than %i\n", MAX_PACKET_SIZE);
-		exit(-1);
-	}
-
-	fp = open("/dev/usrp_e0", O_RDWR);
-	printf("fp = %d\n", fp);
-
-	rb = mmap(0, 202 * 4096, PROT_READ|PROT_WRITE, MAP_SHARED, fp, 0);
-	if (!rb) {
-		printf("mmap failed\n");
-		exit;
-	}
-
-
-	sched_setscheduler(0, SCHED_RR, &s);
-	error = 0;
-
-#if 1
-	if (pthread_create(&rx, NULL, read_thread, (void *) t)) {
-		printf("Failed to create rx thread\n");
-		exit(-1);
-	}
-
-	sleep(1);
-#endif
-
-	if (pthread_create(&tx, NULL, write_thread, (void *) t)) {
-		printf("Failed to create tx thread\n");
-		exit(-1);
-	}
-
-//	while (!error)
-		sleep(1000000000);
-
-	printf("Done sleeping\n");
-}