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hub-ctrl: Add support for micro-controller reset via RPi usb power toggling

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2017-04-13 12:09:37 -04:00
parent 9f9e3e61d6
commit daff83ee9a
6 changed files with 480 additions and 22 deletions
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41
klippy/chelper.py
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@ -1,11 +1,16 @@
# Wrapper around C helper code
#
# Copyright (C) 2016 Kevin O'Connor <kevin@koconnor.net>
# Copyright (C) 2016,2017 Kevin O'Connor <kevin@koconnor.net>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
import os, logging
import cffi
######################################################################
# c_helper.so compiling
######################################################################
COMPILE_CMD = "gcc -Wall -g -O2 -shared -fPIC -o %s %s"
SOURCE_FILES = ['stepcompress.c', 'serialqueue.c', 'pyhelper.c']
DEST_LIB = "c_helper.so"
@ -79,14 +84,14 @@ def get_mtimes(srcdir, filelist):
return out
# Check if the code needs to be compiled
def check_build_code(srcdir):
src_times = get_mtimes(srcdir, SOURCE_FILES + OTHER_FILES)
obj_times = get_mtimes(srcdir, [DEST_LIB])
def check_build_code(srcdir, target, sources, cmd, other_files=[]):
src_times = get_mtimes(srcdir, sources + other_files)
obj_times = get_mtimes(srcdir, [target])
if not obj_times or max(src_times) > min(obj_times):
logging.info("Building C code module")
srcfiles = [os.path.join(srcdir, fname) for fname in SOURCE_FILES]
destlib = os.path.join(srcdir, DEST_LIB)
os.system(COMPILE_CMD % (destlib, ' '.join(srcfiles)))
logging.info("Building C code module %s" % (target,))
srcfiles = [os.path.join(srcdir, fname) for fname in sources]
destlib = os.path.join(srcdir, target)
os.system(cmd % (destlib, ' '.join(srcfiles)))
FFI_main = None
FFI_lib = None
@ -97,7 +102,8 @@ def get_ffi():
global FFI_main, FFI_lib, pyhelper_logging_callback
if FFI_lib is None:
srcdir = os.path.dirname(os.path.realpath(__file__))
check_build_code(srcdir)
check_build_code(srcdir, DEST_LIB, SOURCE_FILES, COMPILE_CMD
, OTHER_FILES)
FFI_main = cffi.FFI()
FFI_main.cdef(defs_stepcompress)
FFI_main.cdef(defs_serialqueue)
@ -110,3 +116,20 @@ def get_ffi():
"void(const char *)", logging_callback)
FFI_lib.set_python_logging_callback(pyhelper_logging_callback)
return FFI_main, FFI_lib
######################################################################
# hub-ctrl hub power controller
######################################################################
HC_COMPILE_CMD = "gcc -Wall -g -O2 -o %s %s -lusb"
HC_SOURCE_FILES = ['hub-ctrl.c']
HC_SOURCE_DIR = '../lib/hub-ctrl'
HC_TARGET = "hub-ctrl"
HC_CMD = "sudo %s/hub-ctrl -h 0 -P 2 -p %d"
def run_hub_ctrl(enable_power):
srcdir = os.path.dirname(os.path.realpath(__file__))
hubdir = os.path.join(srcdir, HC_SOURCE_DIR)
check_build_code(hubdir, HC_TARGET, HC_SOURCE_FILES, HC_COMPILE_CMD)
os.system(HC_CMD % (hubdir, enable_power))