diff options
| -rw-r--r-- | host/apps/omap_debug/Makefile | 5 | ||||
| -rw-r--r-- | host/apps/omap_debug/clkgen-config.cc | 294 |
2 files changed, 298 insertions, 1 deletions
diff --git a/host/apps/omap_debug/Makefile b/host/apps/omap_debug/Makefile index 9b590b9f7..e2aa384f2 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 usrp-e-lb-test usrp-e-crc-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-crc-rw clkgen-config usrp-e-spi : usrp-e-spi.c @@ -30,6 +30,8 @@ usrp-e-button : usrp-e-button.c fpga-downloader : fpga-downloader.cc +clkgen-config : clkgen-config.cc + usrp-e-gpio : usrp-e-gpio.c usrp-e-lb-test : usrp-e-lb-test.c @@ -51,3 +53,4 @@ clean : rm -f usrp-e-debug-pins rm -f usrp-e-lb-test rm -f usrp-e-crc-rw + rm -f clkgen-config diff --git a/host/apps/omap_debug/clkgen-config.cc b/host/apps/omap_debug/clkgen-config.cc new file mode 100644 index 000000000..c21f54a60 --- /dev/null +++ b/host/apps/omap_debug/clkgen-config.cc @@ -0,0 +1,294 @@ +/* -*- 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, + 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 = 12000000; + int bits = 32; + + 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 = 32; + + 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++) { + + chip_select.set_value(1); + spi.send((char *)&data[i], (char *)&rbuf, 4); + chip_select.set_value(0); + + }; +} + +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)); +} + |