e310/e320: Move E310 to MPM architecture and refactor

- Turns the E310 into an MPM device (like N3xx, E320)
- Factor out common code between E320 and E310, maximize sharing between
  the two devices
- Remove all pre-MPM E310 code that is no longer needed
- Modify MPM to remove all existing overlays before applying new ones
  (this is necessary to enable idle image mode for E310)

Co-authored-by: Virendra Kakade <virendra.kakade@ni.com>
Signed-off-by: Virendra Kakade <virendra.kakade@ni.com>

1 files changed, 0 insertions, 98 deletions

diff --git a/host/lib/usrp/e300/e300_common.cpp b/host/lib/usrp/e300/e300_common.cpp
deleted file mode 100644
index cd52bb9d0..000000000
--- a/host/lib/usrp/e300/e300_common.cpp
+++ /dev/null
@@ -1,98 +0,0 @@
-//
-// Copyright 2014-2015 Ettus Research LLC
-// Copyright 2018 Ettus Research, a National Instruments Company
-//
-// SPDX-License-Identifier: GPL-3.0-or-later
-//
-#include <uhd/image_loader.hpp>
-#include <uhd/utils/log.hpp>
-#include <uhd/utils/paths.hpp>
-#include <uhd/utils/static.hpp>
-
-#include "e300_impl.hpp"
-#include "e300_fifo_config.hpp"
-#include "e300_fifo_config.hpp"
-
-#include "e300_common.hpp"
-
-#include <boost/filesystem.hpp>
-#include <fstream>
-#include <string>
-
-#ifdef E300_NATIVE
-namespace uhd { namespace usrp { namespace e300 {
-
-namespace common {
-
-void load_fpga_image(const std::string &path)
-{
-    if (not boost::filesystem::exists("/dev/xdevcfg"))
-        ::system("mknod /dev/xdevcfg c 259 0");
-
-    UHD_LOGGER_INFO("E300") << "Loading FPGA image: " << path << "...";
-
-    std::ifstream fpga_file(path.c_str(), std::ios_base::binary);
-    UHD_ASSERT_THROW(fpga_file.good());
-
-    std::FILE *wfile;
-    wfile = std::fopen("/dev/xdevcfg", "wb");
-    UHD_ASSERT_THROW(!(wfile == NULL));
-
-    char buff[16384]; // devcfg driver can't handle huge writes
-    do {
-        fpga_file.read(buff, sizeof(buff));
-        std::fwrite(buff, 1, size_t(fpga_file.gcount()), wfile);
-    } while (fpga_file);
-
-    fpga_file.close();
-    std::fclose(wfile);
-
-    UHD_LOGGER_INFO("E300") << "FPGA image loaded";
-}
-
-static bool e300_image_loader(const image_loader::image_loader_args_t &image_loader_args) {
-    // Make sure this is an E3x0 and we don't want to use anything connected
-    uhd::device_addrs_t devs = e300_find(image_loader_args.args);
-    if(devs.size() == 0 or !image_loader_args.load_fpga) return false;
-
-    std::string fpga_filename, idle_image; // idle_image never used, just needed for function
-    if(image_loader_args.fpga_path == "") {
-        get_e3x0_fpga_images(devs[0], fpga_filename, idle_image);
-    }
-    else {
-        if(not boost::filesystem::exists(image_loader_args.fpga_path)) {
-            throw uhd::runtime_error(str(boost::format("The path \"%s\" does not exist.")
-                                         % image_loader_args.fpga_path));
-        }
-        else fpga_filename = image_loader_args.fpga_path;
-    }
-
-    load_fpga_image(fpga_filename);
-    return true;
-}
-
-UHD_STATIC_BLOCK(register_e300_image_loader) {
-    std::string recovery_instructions = "The default FPGA image will be loaded the next "
-                                        "time UHD uses this device.";
-
-    image_loader::register_image_loader("e3x0", e300_image_loader, recovery_instructions);
-}
-
-}
-
-}}}
-
-#else
-namespace uhd { namespace usrp { namespace e300 {
-
-namespace common {
-
-void load_fpga_image(const std::string&)
-{
-    throw uhd::assertion_error("load_fpga_image() !E300_NATIVE");
-}
-
-}
-
-}}}
-#endif