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-rw-r--r--host/usrp_e_utils/CMakeLists.txt50
-rw-r--r--host/usrp_e_utils/clkgen-config.cpp296
-rw-r--r--host/usrp_e_utils/fpga-downloader.cpp267
-rw-r--r--host/usrp_e_utils/usrp-e-debug-pins.c78
-rw-r--r--host/usrp_e_utils/usrp-e-i2c.c87
-rw-r--r--host/usrp_e_utils/usrp-e-loopback.c231
-rw-r--r--host/usrp_e_utils/usrp-e-spi.c54
-rw-r--r--host/usrp_e_utils/usrp-e-wb-test.cpp111
8 files changed, 1174 insertions, 0 deletions
diff --git a/host/usrp_e_utils/CMakeLists.txt b/host/usrp_e_utils/CMakeLists.txt
new file mode 100644
index 000000000..1330aed75
--- /dev/null
+++ b/host/usrp_e_utils/CMakeLists.txt
@@ -0,0 +1,50 @@
+#
+# Copyright 2011 Ettus Research LLC
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+########################################################################
+# USRP embedded utilities that get installed into the share path
+########################################################################
+IF(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+ SET(LINUX_TARGET TRUE)
+ENDIF(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+
+LIBUHD_REGISTER_COMPONENT("USRP-E Utils" ENABLE_USRP_E_UTILS OFF "LINUX_TARGET" OFF)
+
+IF(ENABLE_USRP_E_UTILS)
+ ENABLE_LANGUAGE(C)
+ INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/lib/usrp/usrp_e100)
+ INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/lib/usrp/usrp_e100/include)
+
+ SET(usrp_e_utils_sources
+ fpga-downloader.cpp
+ clkgen-config.cpp
+ usrp-e-loopback.c
+ usrp-e-wb-test.cpp
+ usrp-e-debug-pins.c
+ usrp-e-i2c.c
+ usrp-e-spi.c
+ )
+
+ #for each source: build an executable and install
+ FOREACH(util_source ${usrp_e_utils_sources})
+ GET_FILENAME_COMPONENT(util_name ${util_source} NAME_WE)
+ ADD_EXECUTABLE(${util_name} ${util_source})
+ TARGET_LINK_LIBRARIES(${util_name} -lpthread)
+ INSTALL(TARGETS ${util_name} RUNTIME DESTINATION ${PKG_DATA_DIR}/usrp_e_utils)
+ ENDFOREACH(util_source)
+
+ENDIF(ENABLE_USRP_E_UTILS)
diff --git a/host/usrp_e_utils/clkgen-config.cpp b/host/usrp_e_utils/clkgen-config.cpp
new file mode 100644
index 000000000..e8279b4ae
--- /dev/null
+++ b/host/usrp_e_utils/clkgen-config.cpp
@@ -0,0 +1,296 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2003,2004,2008,2009 Free Software Foundation, Inc.
+ *
+ * This file is part of UHD
+ *
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+*/
+
+#include <iostream>
+#include <sstream>
+#include <fstream>
+#include <string>
+#include <cstdlib>
+
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+
+#include <linux/spi/spidev.h>
+
+
+// Programming data for clock gen chip
+static const unsigned int config_data[] = {
+ 0x000024,
+ 0x023201,
+ 0x000081,
+ 0x000400,
+ 0x00104c,
+ 0x001101,
+ 0x001200,
+ 0x001300,
+ 0x001414,
+ 0x001500,
+ 0x001604,
+ 0x001704,
+ 0x001807,
+ 0x001900,
+ //0x001a00,//for debug
+ 0x001a32,
+ 0x001b12,
+ 0x001c44,
+ 0x001d00,
+ 0x001e00,
+ 0x00f062,
+ 0x00f162,
+ 0x00f262,
+ 0x00f362,
+ 0x00f462,
+ 0x00f562,
+ 0x00f662,
+ 0x00f762,
+ 0x00f862,
+ 0x00f962,
+ 0x00fa62,
+ 0x00fb62,
+ 0x00fc00,
+ 0x00fd00,
+ 0x019021,
+ 0x019100,
+ 0x019200,
+ 0x019333,
+ 0x019400,
+ 0x019500,
+ 0x019611,
+ 0x019700,
+ 0x019800,
+ 0x019900,
+ 0x019a00,
+ 0x019b00,
+ 0x01e003,
+ 0x01e102,
+ 0x023000,
+ 0x023201,
+ 0x0b0201,
+ 0x0b0300,
+ 0x001fff,
+ 0x0a0000,
+ 0x0a0100,
+ 0x0a0200,
+ 0x0a0302,
+ 0x0a0400,
+ 0x0a0504,
+ 0x0a060e,
+ 0x0a0700,
+ 0x0a0810,
+ 0x0a090e,
+ 0x0a0a00,
+ 0x0a0bf0,
+ 0x0a0c0b,
+ 0x0a0d01,
+ 0x0a0e90,
+ 0x0a0f01,
+ 0x0a1001,
+ 0x0a11e0,
+ 0x0a1201,
+ 0x0a1302,
+ 0x0a1430,
+ 0x0a1580,
+ 0x0a16ff,
+ 0x023201,
+ 0x0b0301,
+ 0x023201,
+};
+
+
+const unsigned int CLKGEN_SELECT = 145;
+
+
+enum gpio_direction {IN, OUT};
+
+class gpio {
+ public:
+
+ gpio(unsigned int gpio_num, gpio_direction pin_direction, bool close_action);
+ ~gpio();
+
+ bool get_value();
+ void set_value(bool state);
+
+ private:
+
+ unsigned int gpio_num;
+
+ std::stringstream base_path;
+ std::fstream value_file;
+ std::fstream direction_file;
+ bool close_action; // True set to input and release, false do nothing
+};
+
+class spidev {
+ public:
+
+ spidev(std::string dev_name);
+ ~spidev();
+
+ void send(char *wbuf, char *rbuf, unsigned int nbytes);
+
+ private:
+
+ int fd;
+
+};
+
+gpio::gpio(unsigned int _gpio_num, gpio_direction pin_direction, bool close_action)
+{
+ std::fstream export_file;
+
+ gpio_num = _gpio_num;
+
+ export_file.open("/sys/class/gpio/export", std::ios::out);
+ if (!export_file.is_open()) ///\todo Poor error handling
+ std::cout << "Failed to open gpio export file." << std::endl;
+
+ export_file << gpio_num << std::endl;
+
+ base_path << "/sys/class/gpio/gpio" << gpio_num << std::flush;
+
+ std::string direction_file_name;
+
+ direction_file_name = base_path.str() + "/direction";
+
+ direction_file.open(direction_file_name.c_str());
+ if (!direction_file.is_open())
+ std::cout << "Failed to open direction file." << std::endl;
+ if (pin_direction == OUT)
+ direction_file << "out" << std::endl;
+ else
+ direction_file << "in" << std::endl;
+
+ std::string value_file_name;
+
+ value_file_name = base_path.str() + "/value";
+
+ value_file.open(value_file_name.c_str(), std::ios_base::in | std::ios_base::out);
+ if (!value_file.is_open())
+ std::cout << "Failed to open value file." << std::endl;
+}
+
+bool gpio::get_value()
+{
+
+ std::string val;
+
+ std::getline(value_file, val);
+ value_file.seekg(0);
+
+ if (val == "0")
+ return false;
+ else if (val == "1")
+ return true;
+ else
+ std::cout << "Data read from value file|" << val << "|" << std::endl;
+
+ return false;
+}
+
+void gpio::set_value(bool state)
+{
+
+ if (state)
+ value_file << "1" << std::endl;
+ else
+ value_file << "0" << std::endl;
+}
+
+gpio::~gpio()
+{
+ if (close_action) {
+ std::fstream unexport_file;
+
+ direction_file << "in" << std::endl;
+
+ unexport_file.open("/sys/class/gpio/unexport", std::ios::out);
+ if (!unexport_file.is_open()) ///\todo Poor error handling
+ std::cout << "Failed to open gpio export file." << std::endl;
+
+ unexport_file << gpio_num << std::endl;
+
+ }
+
+}
+
+spidev::spidev(std::string fname)
+{
+ int ret;
+ int mode = 0;
+ int speed = 12000;
+ int bits = 24;
+
+ fd = open(fname.c_str(), O_RDWR);
+
+ ret = ioctl(fd, SPI_IOC_WR_MODE, &mode);
+ ret = ioctl(fd, SPI_IOC_WR_MAX_SPEED_HZ, &speed);
+ ret = ioctl(fd, SPI_IOC_WR_BITS_PER_WORD, &bits);
+}
+
+
+spidev::~spidev()
+{
+ close(fd);
+}
+
+void spidev::send(char *buf, char *rbuf, unsigned int nbytes)
+{
+ int ret;
+
+ struct spi_ioc_transfer tr;
+ tr.tx_buf = (unsigned long) buf;
+ tr.rx_buf = (unsigned long) rbuf;
+ tr.len = nbytes;
+ tr.delay_usecs = 0;
+ tr.speed_hz = 12000000;
+ tr.bits_per_word = 24;
+
+ ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
+
+}
+
+static void send_config_to_clkgen(gpio &chip_select, const unsigned int data[], unsigned int data_size)
+{
+ spidev spi("/dev/spidev1.0");
+ unsigned int rbuf;
+
+ for (unsigned int i = 0; i < data_size; i++) {
+
+ std::cout << "sending " << std::hex << data[i] << std::endl;
+ chip_select.set_value(0);
+ spi.send((char *)&data[i], (char *)&rbuf, 4);
+ chip_select.set_value(1);
+
+ };
+}
+
+int main(int argc, char *argv[])
+{
+
+ gpio clkgen_select(CLKGEN_SELECT, OUT, true);
+
+ send_config_to_clkgen(clkgen_select, config_data, sizeof(config_data)/sizeof(unsigned int));
+}
+
diff --git a/host/usrp_e_utils/fpga-downloader.cpp b/host/usrp_e_utils/fpga-downloader.cpp
new file mode 100644
index 000000000..80ee71600
--- /dev/null
+++ b/host/usrp_e_utils/fpga-downloader.cpp
@@ -0,0 +1,267 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2003,2004,2008,2009 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+*/
+
+#include <iostream>
+#include <sstream>
+#include <fstream>
+#include <string>
+#include <cstdlib>
+
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+
+#include <linux/spi/spidev.h>
+
+/*
+ * Configuration connections
+ *
+ * CCK - MCSPI1_CLK
+ * DIN - MCSPI1_MOSI
+ * PROG_B - GPIO_175 - output (change mux)
+ * DONE - GPIO_173 - input (change mux)
+ * INIT_B - GPIO_114 - input (change mux)
+ *
+*/
+
+const unsigned int PROG_B = 175;
+const unsigned int DONE = 173;
+const unsigned int INIT_B = 114;
+
+static std::string bit_file = "safe_u1e.bin";
+
+const int BUF_SIZE = 4096;
+
+enum gpio_direction {IN, OUT};
+
+class gpio {
+ public:
+
+ gpio(unsigned int gpio_num, gpio_direction pin_direction);
+
+ bool get_value();
+ void set_value(bool state);
+
+ private:
+
+ std::stringstream base_path;
+ std::fstream value_file;
+};
+
+class spidev {
+ public:
+
+ spidev(std::string dev_name);
+ ~spidev();
+
+ void send(char *wbuf, char *rbuf, unsigned int nbytes);
+
+ private:
+
+ int fd;
+
+};
+
+gpio::gpio(unsigned int gpio_num, gpio_direction pin_direction)
+{
+ std::fstream export_file;
+
+ export_file.open("/sys/class/gpio/export", std::ios::out);
+ if (!export_file.is_open()) ///\todo Poor error handling
+ std::cout << "Failed to open gpio export file." << std::endl;
+
+ export_file << gpio_num << std::endl;
+
+ base_path << "/sys/class/gpio/gpio" << gpio_num << std::flush;
+
+ std::fstream direction_file;
+ std::string direction_file_name;
+
+ direction_file_name = base_path.str() + "/direction";
+
+ direction_file.open(direction_file_name.c_str());
+ if (!direction_file.is_open())
+ std::cout << "Failed to open direction file." << std::endl;
+ if (pin_direction == OUT)
+ direction_file << "out" << std::endl;
+ else
+ direction_file << "in" << std::endl;
+
+ std::string value_file_name;
+
+ value_file_name = base_path.str() + "/value";
+
+ value_file.open(value_file_name.c_str(), std::ios_base::in | std::ios_base::out);
+ if (!value_file.is_open())
+ std::cout << "Failed to open value file." << std::endl;
+}
+
+bool gpio::get_value()
+{
+
+ std::string val;
+
+ std::getline(value_file, val);
+ value_file.seekg(0);
+
+ if (val == "0")
+ return false;
+ else if (val == "1")
+ return true;
+ else
+ std::cout << "Data read from value file|" << val << "|" << std::endl;
+
+ return false;
+}
+
+void gpio::set_value(bool state)
+{
+
+ if (state)
+ value_file << "1" << std::endl;
+ else
+ value_file << "0" << std::endl;
+}
+
+static void prepare_fpga_for_configuration(gpio &prog, gpio &init)
+{
+
+ prog.set_value(true);
+ prog.set_value(false);
+ prog.set_value(true);
+
+#if 0
+ bool ready_to_program(false);
+ unsigned int count(0);
+ do {
+ ready_to_program = init.get_value();
+ count++;
+
+ sleep(1);
+ } while (count < 10 && !ready_to_program);
+
+ if (count == 10) {
+ std::cout << "FPGA not ready for programming." << std::endl;
+ exit(-1);
+ }
+#endif
+}
+
+spidev::spidev(std::string fname)
+{
+ int ret;
+ int mode = 0;
+ int speed = 12000000;
+ int bits = 8;
+
+ fd = open(fname.c_str(), O_RDWR);
+
+ ret = ioctl(fd, SPI_IOC_WR_MODE, &mode);
+ ret = ioctl(fd, SPI_IOC_WR_MAX_SPEED_HZ, &speed);
+ ret = ioctl(fd, SPI_IOC_WR_BITS_PER_WORD, &bits);
+}
+
+
+spidev::~spidev()
+{
+ close(fd);
+}
+
+void spidev::send(char *buf, char *rbuf, unsigned int nbytes)
+{
+ int ret;
+
+ struct spi_ioc_transfer tr;
+ tr.tx_buf = (unsigned long) buf;
+ tr.rx_buf = (unsigned long) rbuf;
+ tr.len = nbytes;
+ tr.delay_usecs = 0;
+ tr.speed_hz = 48000000;
+ tr.bits_per_word = 8;
+
+ ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
+
+}
+
+static void send_file_to_fpga(std::string &file_name, gpio &error, gpio &done)
+{
+ std::ifstream bitstream;
+
+ std::cout << "File name - " << file_name.c_str() << std::endl;
+
+ bitstream.open(file_name.c_str(), std::ios::binary);
+ if (!bitstream.is_open())
+ std::cout << "File " << file_name << " not opened succesfully." << std::endl;
+
+ spidev spi("/dev/spidev1.0");
+ char buf[BUF_SIZE];
+ char rbuf[BUF_SIZE];
+
+ do {
+ bitstream.read(buf, BUF_SIZE);
+ spi.send(buf, rbuf, bitstream.gcount());
+
+ if (error.get_value())
+ std::cout << "INIT_B went high, error occured." << std::endl;
+
+ if (!done.get_value())
+ std::cout << "Configuration complete." << std::endl;
+
+ } while (bitstream.gcount() == BUF_SIZE);
+}
+
+int main(int argc, char *argv[])
+{
+
+ gpio gpio_prog_b(PROG_B, OUT);
+ gpio gpio_init_b(INIT_B, IN);
+ gpio gpio_done (DONE, IN);
+
+ if (argc == 2)
+ bit_file = argv[1];
+
+ bool module_found(false);
+ std::ifstream mod_file("/proc/modules");
+ while (!mod_file.eof()) {
+ std::string line;
+ getline(mod_file, line);
+ if (line.find("usrp_e") != std::string::npos)
+ module_found = true;
+ }
+ mod_file.close();
+
+ if (module_found) {
+ std::cout << "USRP Embedded kernel module loaded, not loading FPGA." << std::endl;
+ return -1;
+ }
+
+ std::cout << "FPGA config file: " << bit_file << std::endl;
+
+ prepare_fpga_for_configuration(gpio_prog_b, gpio_init_b);
+
+ std::cout << "Done = " << gpio_done.get_value() << std::endl;
+
+ send_file_to_fpga(bit_file, gpio_init_b, gpio_done);
+}
+
diff --git a/host/usrp_e_utils/usrp-e-debug-pins.c b/host/usrp_e_utils/usrp-e-debug-pins.c
new file mode 100644
index 000000000..94f898b67
--- /dev/null
+++ b/host/usrp_e_utils/usrp-e-debug-pins.c
@@ -0,0 +1,78 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include <linux/usrp_e.h>
+#include "usrp_e100_regs.hpp"
+
+// Usage: usrp_e_gpio <string>
+
+static int fp;
+
+static int read_reg(__u16 reg)
+{
+ int ret;
+ struct usrp_e_ctl16 d;
+
+ d.offset = reg;
+ d.count = 1;
+ ret = ioctl(fp, USRP_E_READ_CTL16, &d);
+ return d.buf[0];
+}
+
+static void write_reg(__u16 reg, __u16 val)
+{
+ int ret;
+ struct usrp_e_ctl16 d;
+
+ d.offset = reg;
+ d.count = 1;
+ d.buf[0] = val;
+ ret = ioctl(fp, USRP_E_WRITE_CTL16, &d);
+}
+
+int main(int argc, char *argv[])
+{
+ int test;
+
+ test = 0;
+ if (argc < 2) {
+ printf("%s 0|1|off\n", argv[0]);
+ return -1;
+ }
+
+ fp = open("/dev/usrp_e0", O_RDWR);
+ printf("fp = %d\n", fp);
+ if (fp < 0) {
+ perror("Open failed");
+ return -1;
+ }
+
+ if (strcmp(argv[1], "0") == 0) {
+ printf("Selected 0 based on %s\n", argv[1]);
+ write_reg(UE_REG_GPIO_TX_DDR, 0xFFFF);
+ write_reg(UE_REG_GPIO_RX_DDR, 0xFFFF);
+ write_reg(UE_REG_GPIO_TX_SEL, 0x0);
+ write_reg(UE_REG_GPIO_RX_SEL, 0x0);
+ write_reg(UE_REG_GPIO_TX_DBG, 0xFFFF);
+ write_reg(UE_REG_GPIO_RX_DBG, 0xFFFF);
+ } else if (strcmp(argv[1], "1") == 0) {
+ printf("Selected 1 based on %s\n", argv[1]);
+ write_reg(UE_REG_GPIO_TX_DDR, 0xFFFF);
+ write_reg(UE_REG_GPIO_RX_DDR, 0xFFFF);
+ write_reg(UE_REG_GPIO_TX_SEL, 0xFFFF);
+ write_reg(UE_REG_GPIO_RX_SEL, 0xFFFF);
+ write_reg(UE_REG_GPIO_TX_DBG, 0xFFFF);
+ write_reg(UE_REG_GPIO_RX_DBG, 0xFFFF);
+ } else {
+ printf("Selected off based on %s\n", argv[1]);
+ write_reg(UE_REG_GPIO_TX_DDR, 0x0);
+ write_reg(UE_REG_GPIO_RX_DDR, 0x0);
+ }
+
+ return 0;
+}
diff --git a/host/usrp_e_utils/usrp-e-i2c.c b/host/usrp_e_utils/usrp-e-i2c.c
new file mode 100644
index 000000000..c6fd4c632
--- /dev/null
+++ b/host/usrp_e_utils/usrp-e-i2c.c
@@ -0,0 +1,87 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+
+#include <linux/usrp_e.h>
+
+// Usage: usrp_e_i2c w address data0 data1 data 2 ....
+// Usage: usrp_e_i2c r address count
+
+int main(int argc, char *argv[])
+{
+ int fp, ret, i, tmp;
+ struct usrp_e_i2c *i2c_msg;
+ int direction, address, count;
+
+ if (argc < 3) {
+ printf("Usage: usrp-e-i2c w address data0 data1 data2 ...\n");
+ printf("Usage: usrp-e-i2c r address count\n");
+ printf("All addresses and data in hex.\n");
+ exit(-1);
+ }
+
+ if (strcmp(argv[1], "r") == 0) {
+ direction = 0;
+ } else if (strcmp(argv[1], "w") == 0) {
+ direction = 1;
+ } else {
+ return -1;
+ }
+
+ sscanf(argv[2], "%X", &address);
+ printf("Address = %X\n", address);
+
+ fp = open("/dev/usrp_e0", O_RDWR);
+ printf("fp = %d\n", fp);
+ if (fp < 0) {
+ perror("Open failed");
+ return -1;
+ }
+
+// sleep(1);
+
+ if (direction) {
+ count = argc - 3;
+ } else {
+ sscanf(argv[3], "%X", &count);
+ }
+ printf("Count = %X\n", count);
+
+ i2c_msg = malloc(sizeof(i2c_msg) + count * sizeof(char));
+
+ i2c_msg->addr = address;
+ i2c_msg->len = count;
+
+ for (i = 0; i < count; i++) {
+ i2c_msg->data[i] = i;
+ }
+
+ if (direction) {
+ // Write
+
+ for (i=0; i<count; i++) {
+ sscanf(argv[3+i], "%X", &tmp);
+ i2c_msg->data[i] = tmp;
+ }
+
+ ret = ioctl(fp, USRP_E_I2C_WRITE, i2c_msg);
+ printf("Return value from i2c_write ioctl: %d\n", ret);
+ } else {
+ // Read
+
+ ret = ioctl(fp, USRP_E_I2C_READ, i2c_msg);
+ printf("Return value from i2c_read ioctl: %d\n", ret);
+
+ printf("Ioctl: %d Data read :", ret);
+ for (i=0; i<count; i++) {
+ printf(" %X", i2c_msg->data[i]);
+ }
+ printf("\n");
+
+ }
+ return 0;
+}
diff --git a/host/usrp_e_utils/usrp-e-loopback.c b/host/usrp_e_utils/usrp-e-loopback.c
new file mode 100644
index 000000000..454d81ba7
--- /dev/null
+++ b/host/usrp_e_utils/usrp-e-loopback.c
@@ -0,0 +1,231 @@
+#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");
+}
diff --git a/host/usrp_e_utils/usrp-e-spi.c b/host/usrp_e_utils/usrp-e-spi.c
new file mode 100644
index 000000000..5203f56a8
--- /dev/null
+++ b/host/usrp_e_utils/usrp-e-spi.c
@@ -0,0 +1,54 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+
+#include <linux/usrp_e.h>
+
+// Usage: usrp_e_spi w|rb slave data
+
+int main(int argc, char *argv[])
+{
+ int fp, slave, length, ret;
+ unsigned int data;
+ struct usrp_e_spi spi_dat;
+
+ if (argc < 5) {
+ printf("Usage: usrp_e_spi w|rb slave transfer_length data\n");
+ exit(-1);
+ }
+
+ slave = atoi(argv[2]);
+ length = atoi(argv[3]);
+ data = atoll(argv[4]);
+
+ printf("Data = %X\n", data);
+
+ fp = open("/dev/usrp_e0", O_RDWR);
+ printf("fp = %d\n", fp);
+ if (fp < 0) {
+ perror("Open failed");
+ return -1;
+ }
+
+// sleep(1);
+
+
+ spi_dat.slave = slave;
+ spi_dat.data = data;
+ spi_dat.length = length;
+ spi_dat.flags = UE_SPI_PUSH_FALL | UE_SPI_LATCH_RISE;
+
+ if (*argv[1] == 'r') {
+ spi_dat.readback = 1;
+ ret = ioctl(fp, USRP_E_SPI, &spi_dat);
+ printf("Ioctl returns: %d, Data returned = %d\n", ret, spi_dat.data);
+ } else {
+ spi_dat.readback = 0;
+ ioctl(fp, USRP_E_SPI, &spi_dat);
+ }
+
+ return 0;
+}
diff --git a/host/usrp_e_utils/usrp-e-wb-test.cpp b/host/usrp_e_utils/usrp-e-wb-test.cpp
new file mode 100644
index 000000000..871cc46cc
--- /dev/null
+++ b/host/usrp_e_utils/usrp-e-wb-test.cpp
@@ -0,0 +1,111 @@
+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <cstdlib>
+#include <cstdio>
+#include <ctime>
+#include <iostream>
+
+#include <sys/ioctl.h> //ioctl
+#include <fcntl.h> //open, close
+
+#include <linux/usrp_e.h>
+#include "usrp_e100_regs.hpp"
+
+static const size_t num_test_iters = 432;
+
+static int fp;
+
+static int peek16(int reg){
+ int ret;
+ struct usrp_e_ctl16 d;
+
+ d.offset = reg;
+ d.count = 1;
+ ret = ioctl(fp, USRP_E_READ_CTL16, &d);
+ return d.buf[0];
+}
+
+static void poke16(int reg, int val){
+ int ret;
+ struct usrp_e_ctl16 d;
+
+ d.offset = reg;
+ d.count = 1;
+ d.buf[0] = val;
+ ret = ioctl(fp, USRP_E_WRITE_CTL16, &d);
+}
+
+static int peek32(int reg){
+ int ret;
+ struct usrp_e_ctl32 d;
+
+ d.offset = reg;
+ d.count = 1;
+ ret = ioctl(fp, USRP_E_READ_CTL32, &d);
+ return d.buf[0];
+}
+
+static void poke32(int reg, int val){
+ int ret;
+ struct usrp_e_ctl32 d;
+
+ d.offset = reg;
+ d.count = 1;
+ d.buf[0] = val;
+ ret = ioctl(fp, USRP_E_WRITE_CTL32, &d);
+}
+
+int main(int, char *[]){
+
+ srandom(time(NULL)); //seed random()
+
+ if ((fp = ::open("/dev/usrp_e0", O_RDWR)) < 0){
+ std::cerr << "Open failed" << std::endl;
+ return -1;
+ }
+
+ size_t num_pass = 0, num_fail = 0;
+ for (size_t i = 0; i < num_test_iters; i++){
+ //make random values
+ int random_test32 = ::random();
+ int random_test16 = ::random() & 0xffff;
+ int random_secs = ::random();
+
+ //set a bunch of registers
+ poke16(UE_REG_MISC_TEST, random_test16);
+ poke32(UE_REG_SR_MISC_TEST32, random_test32);
+ poke32(UE_REG_TIME64_TICKS, 0);
+ poke32(UE_REG_TIME64_IMM, 1); //immediate
+ poke32(UE_REG_TIME64_SECS, random_secs);
+
+ //read a bunch of registers
+ if (
+ (peek16(UE_REG_MISC_TEST) == random_test16) and
+ (peek32(UE_REG_RB_MISC_TEST32) == random_test32) and
+ (peek32(UE_REG_RB_TIME_NOW_SECS) == random_secs) and
+ (peek32(UE_REG_RB_TIME_NOW_TICKS) < 1000000) and
+ true) num_pass++;
+ else num_fail++;
+ }
+
+ std::cout << "num pass: " << num_pass << std::endl;
+ std::cout << "num fail: " << num_fail << std::endl;
+
+ ::close(fp);
+ return 0;
+}
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