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authorSuren A. Chilingaryan <csa@suren.me>2016-02-23 07:20:33 +0100
committerSuren A. Chilingaryan <csa@suren.me>2016-02-23 07:20:33 +0100
commita962c90543955bac98308c1b0d909048070d900a (patch)
tree70b06851187e6bf8cfd8ee28931bdea25ea92ac7 /pywrap/pcipywrap.c
parent055279e09c3db9429e02874ec9620b9af357c80a (diff)
parent52eb7f4fb76ddf99dedf44332aae7af4df76ab36 (diff)
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Merge Python scripting support from Vasiliy Chernov
Diffstat (limited to 'pywrap/pcipywrap.c')
-rw-r--r--pywrap/pcipywrap.c503
1 files changed, 503 insertions, 0 deletions
diff --git a/pywrap/pcipywrap.c b/pywrap/pcipywrap.c
new file mode 100644
index 0000000..bcf4561
--- /dev/null
+++ b/pywrap/pcipywrap.c
@@ -0,0 +1,503 @@
+#include "pcipywrap.h"
+
+char* full_log = NULL;
+
+/*!
+ * \brief Wraping for vsnprintf function, that saves string to char*
+ * \return saved from vsnprintf string
+ */
+char* vmake_str(const char* msg, va_list vl)
+{
+ char *buf;
+ size_t sz;
+
+ va_list vl_copy;
+ va_copy(vl_copy, vl);
+
+ sz = vsnprintf(NULL, 0, msg, vl);
+ buf = (char *)malloc(sz + 1);
+
+ if(!buf)
+ {
+ return NULL;
+ }
+
+ vsnprintf(buf, sz+1, msg, vl_copy);
+ va_end(vl_copy);
+
+ return buf;
+}
+
+
+/*!
+ * \brief Wraping for vsnprintf function, that saves string to char*
+ * \return saved from vsnprintf string
+ */
+char* make_str(const char* msg, ...)
+{
+ va_list vl;
+ va_start(vl, msg);
+ char *buf = vmake_str(msg, vl);
+ va_end(vl);
+ return buf;
+}
+
+/*!
+ * \brief Version of pcilib_logger_t, that saves error text to Python exeption
+ */
+void pcilib_print_error_to_py(void *arg, const char *file, int line,
+ pcilib_log_priority_t prio, const char *msg,
+ va_list va) {
+ //wrap error message with file and line number
+ char* buf_raw_msg = vmake_str(msg, va);
+ char* buf_wrapped_message = make_str("%s [%s:%d]\n", buf_raw_msg, file, line);
+
+ if(prio == PCILIB_LOG_ERROR)
+ {
+ if(!full_log)
+ full_log = make_str("");
+
+ //copy received message to log
+ char* buf = full_log;
+ full_log = make_str("%s%s", buf, buf_wrapped_message);
+ free(buf);
+ }
+ else
+ printf("%s", buf_wrapped_message);
+
+ free(buf_wrapped_message);
+ free(buf_raw_msg);
+}
+
+void set_python_exception(const char* msg, ...)
+{
+ va_list vl;
+ va_start(vl, msg);
+ char *buf = vmake_str(msg, vl);
+
+ char* wrapped_exeption;
+ if(full_log)
+ wrapped_exeption = make_str("%s\nprogramm error log:\n%s", buf, full_log);
+ else
+ wrapped_exeption = buf;
+
+ free(full_log);
+ full_log = NULL;
+
+ PyErr_SetString(PyExc_Exception, wrapped_exeption);
+
+ free(buf);
+ if(full_log)
+ free(wrapped_exeption);
+ va_end(vl);
+}
+
+
+void __redirect_logs_to_exeption()
+{
+ pcilib_set_logger(pcilib_get_log_level(),
+ pcilib_print_error_to_py,
+ pcilib_get_logger_context());
+}
+
+/*!
+ * \brief Wrap for PyDict_SetItem, with decrease reference counting after set.
+ */
+void pcilib_pydict_set_item(PyObject* dict, PyObject* name, PyObject* value)
+{
+ PyDict_SetItem(dict,
+ name,
+ value);
+ Py_XDECREF(name);
+ Py_XDECREF(value);
+}
+
+/*!
+ * \brief Wrap for PyList_Append, with decrease reference counting after append.
+ */
+void pcilib_pylist_append(PyObject* list, PyObject* value)
+{
+ PyList_Append(list, value);
+ Py_XDECREF(value);
+}
+
+void add_pcilib_value_to_dict(pcilib_t* ctx, PyObject* dict, pcilib_value_t* val, const char *name)
+{
+ PyObject *py_val = (PyObject*)pcilib_get_value_as_pyobject(ctx, val, NULL);
+
+ if(py_val)
+ pcilib_pydict_set_item(dict,
+ PyString_FromString(name),
+ py_val);
+ else
+ pcilib_pydict_set_item(dict,
+ PyString_FromString("defvalue"),
+ PyString_FromString("invalid"));
+}
+
+PyObject * pcilib_convert_property_info_to_pyobject(pcilib_t* ctx, pcilib_property_info_t listItem)
+{
+ PyObject* pylistItem = PyDict_New();
+
+ if(listItem.name)
+ pcilib_pydict_set_item(pylistItem,
+ PyString_FromString("name"),
+ PyString_FromString(listItem.name));
+
+ if(listItem.description)
+ pcilib_pydict_set_item(pylistItem,
+ PyString_FromString("description"),
+ PyString_FromString(listItem.description));
+
+ if(listItem.path)
+ pcilib_pydict_set_item(pylistItem,
+ PyString_FromString("path"),
+ PyString_FromString(listItem.path));
+
+ //serialize types
+ const char* type = "invalid";
+ switch(listItem.type)
+ {
+ case PCILIB_TYPE_INVALID:
+ type = "invalid";
+ break;
+ case PCILIB_TYPE_STRING:
+ type = "string";
+ break;
+ case PCILIB_TYPE_DOUBLE:
+ type = "double";
+ break;
+ case PCILIB_TYPE_LONG :
+ type = "long";
+ break;
+ default:
+ break;
+ }
+ pcilib_pydict_set_item(pylistItem,
+ PyString_FromString("type"),
+ PyString_FromString(type));
+
+
+ //serialize modes
+ PyObject* modes = PyList_New(0);
+
+ if((listItem.mode & PCILIB_ACCESS_R ) == PCILIB_REGISTER_R)
+ pcilib_pylist_append(modes, PyString_FromString("R"));
+ if((listItem.mode & PCILIB_ACCESS_W ) == PCILIB_REGISTER_W)
+ pcilib_pylist_append(modes, PyString_FromString("W"));
+ if((listItem.mode & PCILIB_ACCESS_RW ) == PCILIB_REGISTER_RW)
+ pcilib_pylist_append(modes, PyString_FromString("RW"));
+ if((listItem.mode & PCILIB_REGISTER_INCONSISTENT) == PCILIB_REGISTER_INCONSISTENT)
+ pcilib_pylist_append(modes, PyString_FromString("NO_CHK"));
+
+ pcilib_pydict_set_item(pylistItem,
+ PyString_FromString("mode"),
+ modes);
+
+ //serialize flags
+ PyObject* flags = PyList_New(0);
+
+ if((listItem.flags & PCILIB_LIST_FLAG_CHILDS ) == PCILIB_LIST_FLAG_CHILDS)
+ pcilib_pylist_append(flags, PyString_FromString("childs"));
+
+ pcilib_pydict_set_item(pylistItem,
+ PyString_FromString("flags"),
+ flags);
+
+ if(listItem.unit)
+ pcilib_pydict_set_item(pylistItem,
+ PyString_FromString("unit"),
+ PyString_FromString(listItem.unit));
+
+ return pylistItem;
+}
+
+PyObject * pcilib_convert_register_info_to_pyobject(pcilib_t* ctx, pcilib_register_info_t listItem)
+{
+ PyObject* pylistItem = PyDict_New();
+
+ if(listItem.name)
+ pcilib_pydict_set_item(pylistItem,
+ PyString_FromString("name"),
+ PyString_FromString(listItem.name));
+
+ if(listItem.description)
+ pcilib_pydict_set_item(pylistItem,
+ PyString_FromString("description"),
+ PyString_FromString(listItem.description));
+
+ if(listItem.bank)
+ pcilib_pydict_set_item(pylistItem,
+ PyString_FromString("bank"),
+ PyString_FromString(listItem.bank));
+
+ //serialize modes
+ PyObject* modes = PyList_New(0);
+
+ if((listItem.mode & PCILIB_REGISTER_R) == PCILIB_REGISTER_R)
+ pcilib_pylist_append(modes, PyString_FromString("R"));
+ if((listItem.mode & PCILIB_REGISTER_W) == PCILIB_REGISTER_W)
+ pcilib_pylist_append(modes, PyString_FromString("W"));
+ if((listItem.mode & PCILIB_REGISTER_RW) == PCILIB_REGISTER_RW)
+ pcilib_pylist_append(modes, PyString_FromString("RW"));
+ if((listItem.mode & PCILIB_REGISTER_W1C) == PCILIB_REGISTER_W1C)
+ pcilib_pylist_append(modes, PyString_FromString("W1C"));
+ if((listItem.mode & PCILIB_REGISTER_RW1C) == PCILIB_REGISTER_RW1C)
+ pcilib_pylist_append(modes, PyString_FromString("RW1C"));
+ if((listItem.mode & PCILIB_REGISTER_W1I) == PCILIB_REGISTER_W1I)
+ pcilib_pylist_append(modes, PyString_FromString("W1I"));
+ if((listItem.mode & PCILIB_REGISTER_RW1I) == PCILIB_REGISTER_RW1I)
+ pcilib_pylist_append(modes, PyString_FromString("RW1I"));
+ if((listItem.mode & PCILIB_REGISTER_INCONSISTENT) == PCILIB_REGISTER_INCONSISTENT)
+ pcilib_pylist_append(modes, PyString_FromString("NO_CHK"));
+
+ pcilib_pydict_set_item(pylistItem,
+ PyString_FromString("mode"),
+ modes);
+
+ pcilib_value_t defval = {0};
+ pcilib_set_value_from_register_value(ctx, &defval, listItem.defvalue);
+ add_pcilib_value_to_dict(ctx, pylistItem, &defval, "defvalue");
+
+ if(listItem.range)
+ {
+ pcilib_value_t minval = {0};
+ pcilib_set_value_from_register_value(ctx, &minval, listItem.range->min);
+
+ pcilib_value_t maxval = {0};
+ pcilib_set_value_from_register_value(ctx, &maxval, listItem.range->max);
+
+ PyObject* range = PyDict_New();
+ add_pcilib_value_to_dict(ctx, range, &minval, "min");
+ add_pcilib_value_to_dict(ctx, range, &maxval, "max");
+ pcilib_pydict_set_item(pylistItem,
+ PyString_FromString("range"),
+ range);
+ }
+
+ if(listItem.values)
+ {
+ PyObject* values = PyList_New(0);
+
+ for (int j = 0; listItem.values[j].name; j++)
+ {
+ PyObject* valuesItem = PyDict_New();
+
+ pcilib_value_t val = {0};
+ pcilib_set_value_from_register_value(ctx, &val, listItem.values[j].value);
+
+ pcilib_value_t min = {0};
+ pcilib_set_value_from_register_value(ctx, &min, listItem.values[j].min);
+
+ pcilib_value_t max = {0};
+ pcilib_set_value_from_register_value(ctx, &max, listItem.values[j].max);
+
+ add_pcilib_value_to_dict(ctx, valuesItem, &val, "value");
+ add_pcilib_value_to_dict(ctx, valuesItem, &min, "min");
+ add_pcilib_value_to_dict(ctx, valuesItem, &max, "max");
+
+ if(listItem.values[j].name)
+ pcilib_pydict_set_item(valuesItem,
+ PyString_FromString("name"),
+ PyString_FromString(listItem.values[j].name));
+
+ if(listItem.values[j].description)
+ pcilib_pydict_set_item(valuesItem,
+ PyString_FromString("name"),
+ PyString_FromString(listItem.values[j].description));
+
+ pcilib_pylist_append(values, valuesItem);
+ }
+
+ pcilib_pydict_set_item(pylistItem,
+ PyString_FromString("values"),
+ values);
+ }
+
+ return pylistItem;
+}
+
+Pcipywrap *new_Pcipywrap(const char* fpga_device, const char* model)
+{
+ //opening device
+ pcilib_t* ctx = pcilib_open(fpga_device, model);
+ if(!ctx)
+ {
+ set_python_exception("Failed pcilib_open(%s, %s)", fpga_device, model);
+ return NULL;
+ }
+ Pcipywrap *self;
+ self = (Pcipywrap *) malloc(sizeof(Pcipywrap));
+ self->shared = 0;
+ self->ctx = ctx;
+ return self;
+}
+
+Pcipywrap *create_Pcipywrap(PyObject* ctx)
+{
+ if(!PyCObject_Check(ctx))
+ {
+ set_python_exception("Incorrect ctx type. Only PyCObject is allowed");
+ return NULL;
+ }
+
+ Pcipywrap *self;
+ self = (Pcipywrap *) malloc(sizeof(Pcipywrap));
+ self->shared = 1;
+ self->ctx = PyCObject_AsVoidPtr(ctx);
+ return self;
+}
+
+void delete_Pcipywrap(Pcipywrap *self) {
+ if(!self->shared)
+ pcilib_close(self->ctx);
+
+ free(self);
+}
+
+PyObject* Pcipywrap_read_register(Pcipywrap *self, const char *regname, const char *bank)
+{
+ pcilib_value_t val = {0};
+ pcilib_register_value_t reg_value;
+
+ int err;
+
+ err = pcilib_read_register(self->ctx, bank, regname, &reg_value);
+ if(err)
+ {
+ set_python_exception("Failed pcilib_read_register");
+ return NULL;
+ }
+
+ err = pcilib_set_value_from_register_value(self->ctx, &val, reg_value);
+ if(err)
+ {
+ set_python_exception("Failed pcilib_set_value_from_register_value");
+ return NULL;
+ }
+
+ return pcilib_get_value_as_pyobject(self->ctx, &val, NULL);
+}
+
+PyObject* Pcipywrap_write_register(Pcipywrap *self, PyObject* val, const char *regname, const char *bank)
+{
+ pcilib_value_t val_internal = {0};
+ pcilib_register_value_t reg_value;
+
+ int err;
+
+ err = pcilib_set_value_from_pyobject(self->ctx, &val_internal, val);
+
+ if(err)
+ {
+ set_python_exception("Failed pcilib_set_value_from_pyobject");
+ return NULL;
+ }
+
+
+ reg_value = pcilib_get_value_as_register_value(self->ctx, &val_internal, &err);
+ if(err)
+ {
+ set_python_exception("Failed pcilib_set_value_from_pyobject, (error %i)", err);
+ return NULL;
+ }
+
+ err = pcilib_write_register(self->ctx, bank, regname, reg_value);
+
+ if(err)
+ {
+ set_python_exception("Failed pcilib_set_value_from_pyobject, (error %i)", err);
+ return NULL;
+ }
+
+ return PyInt_FromLong((long)1);
+}
+
+PyObject* Pcipywrap_get_property(Pcipywrap *self, const char *prop)
+{
+ int err;
+ pcilib_value_t val = {0};
+
+ err = pcilib_get_property(self->ctx, prop, &val);
+
+ if(err)
+ {
+ set_python_exception("Failed pcilib_get_property, (error %i)", err);
+ return NULL;
+ }
+
+ return pcilib_get_value_as_pyobject(self->ctx, &val, NULL);
+}
+
+PyObject* Pcipywrap_set_property(Pcipywrap *self, PyObject* val, const char *prop)
+{
+ int err;
+
+ pcilib_value_t val_internal = {0};
+ err = pcilib_set_value_from_pyobject(self->ctx, &val_internal, val);
+ if(err)
+ {
+ set_python_exception("pcilib_set_value_from_pyobject, (error %i)", err);
+ return NULL;
+ }
+
+ err = pcilib_set_property(self->ctx, prop, &val_internal);
+ if(err)
+ {
+ set_python_exception("pcilib_set_property, (error %i)", err);
+ return NULL;
+ }
+
+ return PyInt_FromLong((long)1);
+}
+
+PyObject* Pcipywrap_get_registers_list(Pcipywrap *self, const char *bank)
+{
+ pcilib_register_info_t *list = pcilib_get_register_list(self->ctx, bank, PCILIB_LIST_FLAGS_DEFAULT);
+
+ PyObject* pyList = PyList_New(0);
+ for(int i = 0; i < ((pcilib_t*)self->ctx)->num_reg; i++)
+ {
+ //serialize item attributes
+ PyObject* pylistItem = pcilib_convert_register_info_to_pyobject(self->ctx, list[i]);
+ pcilib_pylist_append(pyList, pylistItem);
+ }
+
+ pcilib_free_register_info(self->ctx, list);
+
+ return pyList;
+}
+
+PyObject* Pcipywrap_get_register_info(Pcipywrap *self, const char* reg,const char *bank)
+{
+ pcilib_register_info_t *info = pcilib_get_register_info(self->ctx, bank, reg, PCILIB_LIST_FLAGS_DEFAULT);
+
+ if(!info)
+ {
+ return NULL;
+ }
+
+ PyObject* py_info = pcilib_convert_register_info_to_pyobject(self->ctx, info[0]);
+
+ pcilib_free_register_info(self->ctx, info);
+
+ return py_info;
+}
+
+PyObject* Pcipywrap_get_property_list(Pcipywrap *self, const char* branch)
+{
+ pcilib_property_info_t *list = pcilib_get_property_list(self->ctx, branch, PCILIB_LIST_FLAGS_DEFAULT);
+
+ PyObject* pyList = PyList_New(0);
+
+ for(int i = 0; list[i].path; i++)
+ {
+ //serialize item attributes
+ PyObject* pylistItem = pcilib_convert_property_info_to_pyobject(self->ctx, list[i]);
+ pcilib_pylist_append(pyList, pylistItem);
+ }
+
+ pcilib_free_property_info(self->ctx, list);
+
+ return pyList;
+}