mpm: Harmonize imports, tidy + sort modules

- Moved nijesdcore to cores/
- Moved udev, net, dtoverlay, uio to sys_utils/
- Made all imports non-relative (except in __init__.py files)
- Removed some unnecessary imports
- Reordered some imports for Python conventions

1 files changed, 0 insertions, 129 deletions

diff --git a/mpm/python/usrp_mpm/dtoverlay.py b/mpm/python/usrp_mpm/dtoverlay.py
deleted file mode 100644
index 7f1bf653f..000000000
--- a/mpm/python/usrp_mpm/dtoverlay.py
+++ /dev/null
@@ -1,129 +0,0 @@
-#
-# Copyright 2017 Ettus Research (National Instruments)
-#
-# 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/>.
-#
-"""
-Manipulation of device tree overlays (Linux kernel)
-"""
-
-import os
-from .mpmlog import get_logger
-
-SYSFS_OVERLAY_BASE_DIR = '/sys/kernel/config/device-tree/overlays'
-OVERLAY_DEFAULT_PATH = '/lib/firmware'
-
-def get_overlay_attrs(overlay_name):
-    """
-    List those attributes that are connected to an overlay entry in a sysfs
-    node.
-    """
-    overlay_path = os.path.join(SYSFS_OVERLAY_BASE_DIR, overlay_name)
-    attrs = {}
-    for attr_name in os.listdir(overlay_path):
-        try:
-            attr_val = open(
-                os.path.join(overlay_path, attr_name), 'r'
-            ).read().strip()
-        except OSError:
-            pass
-        if len(attr_val):
-            attrs[attr_name] = attr_val
-    return attrs
-
-def is_applied(overlay_name):
-    """
-    Returns True if the overlay is already applied, False if not.
-    """
-    try:
-        return open(
-            os.path.join(SYSFS_OVERLAY_BASE_DIR, overlay_name, 'status')
-        ).read().strip() == 'applied'
-    except IOError:
-        return False
-
-def list_overlays(applied_only=False):
-    """
-    List all registered kernel modules. Returns a dict of dicts:
-    {
-        '<overlay_name>': {
-            # attributes
-        },
-    }
-
-    All the attributes come from sysfs. See get_overlay_attrs().
-
-    applied_only -- Only return those overlays that are already applied.
-    """
-    return {
-        overlay_name: get_overlay_attrs(overlay_name)
-        for overlay_name in os.listdir(SYSFS_OVERLAY_BASE_DIR)
-        if not applied_only \
-            or get_overlay_attrs(overlay_name).get('status') == 'applied'
-    }
-
-def list_available_overlays(path):
-    """
-    List available overlay files (dtbo)
-    """
-    path = path or OVERLAY_DEFAULT_PATH
-    return [x.strip()[:-5] for x in os.listdir(path) if x.endswith('.dtbo')]
-
-def apply_overlay(overlay_name):
-    """
-    Applies the given overlay. Does not check if the overlay is loaded.
-    """
-    get_logger("DTO").trace("Applying overlay `{}'...".format(overlay_name))
-    overlay_path = os.path.join(SYSFS_OVERLAY_BASE_DIR, overlay_name)
-    if not os.path.exists(overlay_path):
-        os.mkdir(overlay_path)
-    open(
-        os.path.join(SYSFS_OVERLAY_BASE_DIR, overlay_name, 'path'), 'w'
-    ).write("{}.dtbo".format(overlay_name))
-
-def apply_overlay_safe(overlay_name):
-    """
-    Only apply an overlay if it's not yet applied.
-
-    Finally, checks that the overlay was applied and throws an exception if not.
-    """
-    if is_applied(overlay_name):
-        get_logger("DTO").debug(
-            "Overlay `{}' was already applied, not applying again.".format(
-                overlay_name
-            )
-        )
-    else:
-        apply_overlay(overlay_name)
-    if not is_applied(overlay_name):
-        raise RuntimeError("Failed to apply overlay `{}'".format(overlay_name))
-
-def rm_overlay(overlay_name):
-    """
-    Removes the given overlay. Does not check if the overlay is loaded.
-    """
-    get_logger("DTO").trace("Removing overlay `{}'...".format(overlay_name))
-    os.rmdir(os.path.join(SYSFS_OVERLAY_BASE_DIR, overlay_name))
-
-def rm_overlay_safe(overlay_name):
-    """
-    Only remove an overlay if it's already applied.
-    """
-    if overlay_name in list(list_overlays(applied_only=True).keys()):
-        rm_overlay(overlay_name)
-    else:
-        get_logger("DTO").debug(
-            "Overlay `{}' was not loaded, not removing.".format(overlay_name)
-        )
-