diff options
Diffstat (limited to 'host/lib/usrp/usrp_e100/fpga_downloader.cpp')
| -rw-r--r-- | host/lib/usrp/usrp_e100/fpga_downloader.cpp | 272 |
1 files changed, 0 insertions, 272 deletions
diff --git a/host/lib/usrp/usrp_e100/fpga_downloader.cpp b/host/lib/usrp/usrp_e100/fpga_downloader.cpp deleted file mode 100644 index b8420796f..000000000 --- a/host/lib/usrp/usrp_e100/fpga_downloader.cpp +++ /dev/null @@ -1,272 +0,0 @@ -// -// Copyright 2010-2011 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 <uhd/config.hpp> -#ifdef UHD_DLL_EXPORTS -#include <uhd/exception.hpp> -#include <uhd/utils/msg.hpp> -#else //special case when this file is externally included -#include <stdexcept> -#include <iostream> -#define UHD_MSG(type) std::cout -namespace uhd{ - typedef std::runtime_error os_error; - typedef std::runtime_error io_error; -} -#endif - -#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> - -/* - * 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) - * -*/ - -namespace usrp_e_fpga_downloader_utility{ - -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 (not export_file.is_open()) throw uhd::os_error( - "Failed to open gpio export file." - ); - - 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; - - if (gpio_num != 114) { - direction_file_name = base_path.str() + "/direction"; - - direction_file.open(direction_file_name.c_str()); - if (!direction_file.is_open()) throw uhd::os_error( - "Failed to open direction file." - ); - 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()) throw uhd::os_error( - "Failed to open value file." - ); -} - -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 - throw uhd::os_error("Data read from value file|" + val + "|"); - - 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) { - throw uhd::os_error("FPGA not ready for programming."); - } -#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(const std::string &file_name, gpio &error, gpio &done) -{ - std::ifstream bitstream; - - bitstream.open(file_name.c_str(), std::ios::binary); - if (!bitstream.is_open()) throw uhd::os_error( - "Coult not open the file: " + file_name - ); - - 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()) - throw uhd::os_error("INIT_B went high, error occured."); - - if (!done.get_value()) - UHD_MSG(status) << "Configuration complete." << std::endl; - - } while (bitstream.gcount() == BUF_SIZE); -} - -}//namespace usrp_e_fpga_downloader_utility - -void usrp_e100_load_fpga(const std::string &bin_file){ - using namespace usrp_e_fpga_downloader_utility; - - gpio gpio_prog_b(PROG_B, OUT); - gpio gpio_init_b(INIT_B, IN); - gpio gpio_done (DONE, IN); - - UHD_MSG(status) << "Loading FPGA image: " << bin_file << "... " << std::flush; - -// if(std::system("/sbin/rmmod usrp_e") != 0){ -// UHD_MSG(warning) << "USRP-E100 FPGA downloader: could not unload usrp_e module" << std::endl; -// } - - prepare_fpga_for_configuration(gpio_prog_b, gpio_init_b); - - UHD_MSG(status) << "done = " << gpio_done.get_value() << std::endl; - - send_file_to_fpga(bin_file, gpio_init_b, gpio_done); - -// if(std::system("/sbin/modprobe usrp_e") != 0){ -// UHD_MSG(warning) << "USRP-E100 FPGA downloader: could not load usrp_e module" << std::endl; -// } - -} - |