--- /dev/null
+##
+## This file is part of the sigrok project.
+##
+## Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
+##
+## 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 2 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, write to the Free Software
+## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+##
+
+SUBDIRS = scripts
+
+lib_LTLIBRARIES = libsigrokdecode.la
+
+libsigrokdecode_la_SOURCES = decode.c
+
+libsigrokdecode_la_CPPFLAGS = $(CPPFLAGS_PYTHON)
+libsigrokdecode_la_LDFLAGS = $(LDFLAGS_PYTHON)
+
+include_HEADERS = sigrokdecode.h
+
--- /dev/null
+/*
+ * This file is part of the sigrok project.
+ *
+ * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <sigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
+#include <stdio.h>
+
+/**
+ * Initialize libsigrokdecode.
+ *
+ * @return 0 upon success, non-zero otherwise.
+ */
+int sigrokdecode_init(void)
+{
+ /* Py_Initialize() returns void and usually cannot fail. */
+ Py_Initialize();
+
+ /* FIXME */
+ PySys_SetPath("decode/scripts");
+
+ return 0;
+}
+
+/**
+ * TODO
+ *
+ * @param name TODO
+ * @return 0 upon success, non-zero otherwise.
+ */
+int sigrokdecode_load_decoder_file(const char *name)
+{
+ /* TODO */
+ return 0;
+}
+
+/**
+ * Run the specified decoder function.
+ *
+ * @param decodername TODO
+ * @param inbuf TODO
+ * @param inbuflen TODO
+ * @param outbuf TODO
+ * @param outbuflen TODO
+ * @return 0 upon success, non-zero otherwise.
+ */
+int sigrokdecode_run_decoder(const char *decodername, uint8_t *inbuf,
+ uint64_t inbuflen, uint8_t **outbuf,
+ uint64_t *outbuflen)
+{
+ const char *decoder_filename = "transitioncounter"; /* FIXME */
+ PyObject *py_name, *py_module, *py_func, *py_args;
+ PyObject *py_value, *py_result;
+ int ret;
+
+ /* TODO: Use #defines for the return codes. */
+
+ /* Return an error upon unusable input. */
+ if (decodername == NULL)
+ return -1;
+ if (inbuf == NULL)
+ return -2;
+ if (inbuflen == 0) /* No point in working on empty buffers. */
+ return -3;
+ if (outbuf == NULL)
+ return -4;
+ if (outbuflen == NULL)
+ return -5;
+
+ /* Get the name of the decoder module/file as Python string. */
+ if (!(py_name = PyString_FromString(decoder_filename))) {
+ PyErr_Print();
+ return -6;
+ }
+
+ /* "Import" the python file/module. */
+ if (!(py_module = PyImport_Import(py_name))) {
+ PyErr_Print();
+ Py_DECREF(py_name);
+ return -7;
+ }
+ Py_DECREF(py_name);
+
+ /* Get the decoder/function name as Python callable object. */
+ py_func = PyObject_GetAttrString(py_module, decodername);
+ if (!py_func || !PyCallable_Check(py_func)) {
+ if (PyErr_Occurred())
+ PyErr_Print();
+ Py_DECREF(py_module);
+ return -8;
+ }
+
+ /* Create a Python tuple of size 1. */
+ if (!(py_args = PyTuple_New(1))) {
+ PyErr_Print();
+ Py_DECREF(py_func);
+ Py_DECREF(py_module);
+ return -9;
+ }
+
+ /* Get the input buffer as Python "string" (byte array). */
+ /* TODO: int vs. uint64_t for 'inbuflen'? */
+ if (!(py_value = Py_BuildValue("s#", inbuf, inbuflen))) {
+ PyErr_Print();
+ Py_DECREF(py_args);
+ Py_DECREF(py_func);
+ Py_DECREF(py_module);
+ return -10;
+ }
+
+ if (PyTuple_SetItem(py_args, 0, py_value) != 0) {
+ PyErr_Print();
+ Py_DECREF(py_value);
+ Py_DECREF(py_args);
+ Py_DECREF(py_func);
+ Py_DECREF(py_module);
+ return -11;
+ }
+
+ if (!(py_result = PyObject_CallObject(py_func, py_args))) {
+ PyErr_Print();
+ Py_DECREF(py_value);
+ Py_DECREF(py_args);
+ Py_DECREF(py_func);
+ Py_DECREF(py_module);
+ return -12;
+ }
+
+ if ((ret = PyObject_AsCharBuffer(py_result, (const char **)outbuf,
+ (Py_ssize_t *)outbuflen))) {
+ PyErr_Print();
+ Py_DECREF(py_result);
+ Py_DECREF(py_value);
+ Py_DECREF(py_args);
+ Py_DECREF(py_func);
+ Py_DECREF(py_module);
+ return -13;
+ }
+
+ Py_DECREF(py_result);
+ // Py_DECREF(py_value);
+ Py_DECREF(py_args);
+ Py_DECREF(py_func);
+ Py_DECREF(py_module);
+
+ return 0;
+}
+
+/**
+ * Shutdown libsigrokdecode.
+ *
+ * @return 0 upon success, non-zero otherwise.
+ */
+int sigrokdecode_shutdown(void)
+{
+ /* Py_Finalize() returns void, any finalization errors are ignored. */
+ Py_Finalize();
+
+ return 0;
+}
--- /dev/null
+##
+## This file is part of the sigrok project.
+##
+## Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
+##
+## 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 2 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, write to the Free Software
+## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+##
+
+dist_pkgdata_SCRIPTS = transitioncounter.py
+
--- /dev/null
+##
+## This file is part of the sigrok project.
+##
+## Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
+##
+## 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 2 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, write to the Free Software
+## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+##
+
+# FIXME: So far this is just a simple test for the Python embedding code.
+def sigrokdecode_count_transitions(inbuf):
+ """Counts the low->high and high->low transitions in the specified
+ channel(s) of the signal."""
+
+ outbuf = 'AB' # FIXME
+
+ # print len(inbuf)
+ # print type(inbuf)
+
+ # print inbuf
+ # print str(inbuf[0])
+ # print str(inbuf[1])
+
+ # return inbuf
+ return outbuf
+
--- /dev/null
+/*
+ * This file is part of the sigrok project.
+ *
+ * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef LIBSIGROKDECODE_SIGROKDECODE_H
+#define LIBSIGROKDECODE_SIGROKDECODE_H
+
+#include <Python.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
+#include <stdint.h>
+
+int sigrokdecode_init(void);
+int sigrokdecode_load_decoder_file(const char *name);
+int sigrokdecode_run_decoder(const char *decodername, uint8_t *inbuf,
+ uint64_t inbuflen, uint8_t **outbuf,
+ uint64_t *outbuflen);
+int sigrokdecode_shutdown(void);
+
+#endif
projects / libsigrokdecode.git / commitdiff