4 files changed, 93 insertions, 8 deletions

diff --git a/host/apps/omap_debug/Makefile b/host/apps/omap_debug/Makefile
index f48eb9539..14be592ff 100644
--- a/host/apps/omap_debug/Makefile
+++ b/host/apps/omap_debug/Makefile
@@ -1,6 +1,6 @@
 CFLAGS=-Wall -I../../lib/usrp/usrp_e/
 
-all : usrp-e-spi usrp-e-i2c usrp-e-rw usrp-e-uart usrp-e-led usrp-e-ctl usrp-e-button usrp-e-uart-rx fpga-downloader usrp-e-gpio usrp-e-debug-pins usrp-e-rw-random usrp-e-fpga-rw
+all : usrp-e-spi usrp-e-i2c usrp-e-rw usrp-e-uart usrp-e-led usrp-e-ctl usrp-e-button usrp-e-uart-rx fpga-downloader usrp-e-gpio usrp-e-debug-pins usrp-e-rw-random usrp-e-fpga-rw usrp-e-lb-test
 
 usrp-e-spi : usrp-e-spi.c
 
@@ -29,6 +29,8 @@ fpga-downloader : fpga-downloader.cc
 
 usrp-e-gpio : usrp-e-gpio.c
 
+usrp-e-lb-test : usrp-e-lb-test.c
+
 usrp-e-debug-pins : usrp-e-debug-pins.c
 clean :
 	rm -f usrp-e-spi
@@ -44,3 +46,4 @@ clean :
 	rm -f fpga-downloader
 	rm -f usrp-e-gpio
 	rm -f usrp-e-debug-pins
+	rm -f usrp-e-lb-test
diff --git a/host/apps/omap_debug/usrp-e-fpga-rw.c b/host/apps/omap_debug/usrp-e-fpga-rw.c
index 455657203..f3fa1499a 100644
--- a/host/apps/omap_debug/usrp-e-fpga-rw.c
+++ b/host/apps/omap_debug/usrp-e-fpga-rw.c
@@ -38,6 +38,8 @@ static void *read_thread(void *threadid)
 	int cnt, prev_seq_num;
 	struct usrp_transfer_frame *rx_data;
 	struct pkt *p;
+	int rx_pkt_cnt;
+	int i;
 
 	printf("Greetings from the reading thread!\n");
 
@@ -51,23 +53,39 @@ static void *read_thread(void *threadid)
 
 	prev_seq_num = 0;
 
+	rx_pkt_cnt = 0;
+
 	while (1) {
 
 		cnt = read(fp, rx_data, 2048);
 		if (cnt < 0)
 			printf("Error returned from read: %d\n", cnt);
+		rx_pkt_cnt++;
+
+		if (rx_pkt_cnt  == 512) {
+			printf(".");
+			fflush(stdout);
+			rx_pkt_cnt = 0;
+		}
 
+		if (rx_data->flags & RB_OVERRUN)
+			printf("RX ring buffer overrun occurred at packet %d\n", rx_pkt_cnt);
+
+//		for (i = 0; i < 10; i++)
+//			printf(" %d", p->data[i]);
+//		printf("\n");
+	
 //		printf("Packet received, flags = %X, len = %d\n", rx_data->flags, rx_data->len);
 //		printf("p->seq_num = %d\n", p->seq_num);
 
-		if (p->seq_num != prev_seq_num + 1)
-			printf("Sequence number fail, current = %X, previous = %X\n",
-				p->seq_num, prev_seq_num);
-		prev_seq_num = p->seq_num;
+//		if (p->seq_num != prev_seq_num + 1)
+//			printf("Sequence number fail, current = %X, previous = %X\n",
+//				p->seq_num, prev_seq_num);
+//		prev_seq_num = p->seq_num;
 
-		if (calc_checksum(p) != p->checksum)
-			printf("Checksum fail packet = %X, expected = %X\n",
-				calc_checksum(p), p->checksum);
+//		if (calc_checksum(p) != p->checksum)
+//			printf("Checksum fail packet = %X, expected = %X\n",
+//				calc_checksum(p), p->checksum);
 //		printf("\n");
 	}
 
diff --git a/host/apps/omap_debug/usrp-e-lb-test.c b/host/apps/omap_debug/usrp-e-lb-test.c
new file mode 100644
index 000000000..675de8622
--- /dev/null
+++ b/host/apps/omap_debug/usrp-e-lb-test.c
@@ -0,0 +1,58 @@
+#include <stdio.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stddef.h>
+#include "usrp_e.h"
+
+// max length #define PKT_DATA_LENGTH 1016
+
+int main(int argc, char *argv[])
+{
+	struct usrp_transfer_frame *tx_data, *rx_data;
+	int i, fp, packet_data_length, cnt;
+	struct usrp_e_ctl16 d;
+
+	if (argc < 2) {
+		printf("%s data_size (in bytes < 2040)\n", argv[0]);
+		return -1;
+	}
+
+	packet_data_length = atoi(argv[1]);
+
+	fp = open("/dev/usrp_e0", O_RDWR);
+
+	d.offset = 14;
+	d.count = 1;
+	d.buf[0] = (1 << 13);
+	ioctl(fp, USRP_E_WRITE_CTL16, &d);
+
+	tx_data = malloc(2048);
+	rx_data = malloc(2048);
+
+	tx_data->flags = 0;
+	tx_data->len = sizeof(struct usrp_transfer_frame) + packet_data_length;
+
+	while (1) {
+
+		for (i = 0; i < packet_data_length; i++) {
+			tx_data->buf[i] = random() >> 24;
+
+		}
+
+		cnt = write(fp, tx_data, 2048);
+		cnt = read(fp, rx_data, 2048);
+
+		if (tx_data->len != rx_data->len)
+			printf("Bad frame length sent %d, read %d\n", tx_data->len, rx_data->len);
+
+		for (i = 0; i < packet_data_length; i++) {
+			if (tx_data->buf[i] != rx_data->buf[i])
+				printf("Bad data at %d, sent %d, received %d\n", i, tx_data->buf[i], rx_data->buf[i]);
+		}
+		printf("---------------------------------------------------\n");
+		sleep(1);
+	}
+}
diff --git a/host/apps/omap_debug/usrp_e.h b/host/apps/omap_debug/usrp_e.h
index 48a3201cb..d4132021f 100644
--- a/host/apps/omap_debug/usrp_e.h
+++ b/host/apps/omap_debug/usrp_e.h
@@ -1,3 +1,4 @@
+
 /*
  *  Copyright (C) 2010 Ettus Research, LLC
  *
@@ -77,6 +78,11 @@ struct usrp_transfer_frame {
 	__u8  buf[];
 };
 
+// Flag defines
+#define RB_USER (1 << 0)
+#define RB_KERNEL (1 << 1)
+#define RB_OVERRUN (1 << 2)
+
 struct ring_buffer_entry {
 	unsigned long dma_addr;
 	struct usrp_transfer_frame *frame_addr;