From 5dfc458188538a32f95c05f860587d2c542e14c1 Mon Sep 17 00:00:00 2001
From: Josh Blum <josh@joshknows.com>
Date: Tue, 14 Jun 2011 17:25:22 -0700
Subject: b100: added b100 host (squashed)

---
 host/utils/usrp1p_gpif_loopback.cpp | 111 ++++++++++++++++++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 host/utils/usrp1p_gpif_loopback.cpp

(limited to 'host/utils/usrp1p_gpif_loopback.cpp')

diff --git a/host/utils/usrp1p_gpif_loopback.cpp b/host/utils/usrp1p_gpif_loopback.cpp
new file mode 100644
index 000000000..3b9da4304
--- /dev/null
+++ b/host/utils/usrp1p_gpif_loopback.cpp
@@ -0,0 +1,111 @@
+//USB->GPIF->FPGA loopback test for USRP1P
+//uses UHD libusb transport
+
+#include <uhd/device.hpp>
+#include <uhd/transport/usb_zero_copy.hpp>
+#include <uhd/transport/bounded_buffer.hpp>
+#include <uhd/transport/usb_control.hpp>
+#include <uhd/utils/assert.hpp>
+#include <boost/shared_array.hpp>
+#include <boost/foreach.hpp>
+#include <boost/thread.hpp>
+#include <boost/format.hpp>
+#include <vector>
+#include <iostream>
+#include <iomanip>
+
+//so the goal is to open a USB device to endpoints (2,6), submit a buffer, receive a reply, and compare them.
+//use usb_zero_copy::make() to get a usb_zero_copy object and then start submitting.
+//need to get a usb dev handle to pass to make
+//use static std::vector<usb_device_handle::sptr> get_device_list(boost::uint16_t vid, boost::uint16_t pid) to get a device handle
+//then get_send_buffer, send, etc.
+using namespace uhd;
+using namespace uhd::transport;
+
+const boost::uint16_t data_xfer_size = 32;
+const boost::uint16_t ctrl_xfer_size = 32;
+
+int main(int argc, char *argv[]) {
+    std::cout << "USRP1+ GPIF loopback test" << std::endl;
+    //step 1: get a handle on it
+    std::vector<usb_device_handle::sptr> handles = usb_device_handle::get_device_list(0xfffe, 0x0003);
+    if(handles.size() == 0) {
+        std::cout << "No USRP1+ found." << std::endl;
+        return ~0;
+    }
+    
+    bool verbose = false;
+    if(argc > 1) if(std::string(argv[1]) == "-v") verbose = true;
+    
+    usb_device_handle::sptr handle = handles.front();
+
+    usb_zero_copy::sptr data_transport;
+    usb_control::sptr ctrl_transport = usb_control::make(handle); //just in case
+
+    data_transport = usb_zero_copy::make(
+                handle,        // identifier
+                8,             // IN endpoint
+                4,             // OUT endpoint
+                uhd::device_addr_t("recv_frame_size=32, num_recv_frames=1, send_frame_size=32, num_send_frames=1") //args
+    );
+    
+    if(verbose) std::cout << "Made." << std::endl;
+    
+    //ok now we're made. time to get a buffer and start sending data.
+    
+    boost::uint8_t localbuf[data_xfer_size];
+
+    managed_send_buffer::sptr sbuf;
+    managed_recv_buffer::sptr rbuf;
+    size_t xfercount = 0;
+    
+    srand(time(0));
+    while(1) {
+
+        if(verbose) std::cout << "Getting send buffer." << std::endl;
+        sbuf = data_transport->get_send_buff();
+        if(sbuf == 0) {
+            std::cout << "Failed to get a send buffer." << std::endl;
+            return ~0;
+        }
+        for(int i = 0; i < data_xfer_size; i++) {
+            boost::uint8_t x = rand();
+            sbuf->cast<boost::uint8_t *>()[i] = x;
+            localbuf[i] = x;
+        }
+        
+        if(verbose) std::cout << "Buffer loaded" << std::endl;
+
+        sbuf->commit(data_xfer_size);
+        if(verbose) std::cout << "Committed." << std::endl;
+
+        rbuf = data_transport->get_recv_buff(0.3); //timeout
+        
+        if(rbuf == 0) {
+            std::cout << "Failed to get receive buffer (timeout?)" << std::endl;
+            return ~0;
+        }
+        
+        if(verbose) std::cout << "# " << xfercount << std::endl;
+    
+        if(!memcmp(rbuf->cast<const boost::uint8_t *>(), localbuf, data_xfer_size)) {
+            std::cout << ".";
+        } else {
+            if(verbose) {
+                int i = 0;
+                for(int j = 0; j < 32; j++) {
+                    std::cout << boost::format("%02X ") % int(rbuf->cast<const boost::uint8_t *>()[i*32+j]);
+                }
+                std::cout << std::endl;
+            }    
+            else std::cout << "x";
+
+        }
+        sbuf.reset();
+        rbuf.reset();
+        xfercount++;
+        //if(verbose) std::cout << "sptrs reset" << std::endl;
+    }
+    
+    return 0;
+}
-- 
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