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// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include "internal.h"
typedef struct {
PyObject_HEAD;
struct gpiod_line_settings *settings;
} line_settings_object;
static int set_error(void)
{
Py_gpiod_SetErrFromErrno();
return -1;
}
static int
line_settings_init(line_settings_object *self, PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = {
"direction",
"edge_detection",
"bias",
"drive",
"active_low",
"debounce_period",
"event_clock",
"output_value",
NULL
};
enum gpiod_line_clock event_clock;
enum gpiod_line_direction direction;
enum gpiod_line_value output_value;
unsigned long debounce_period;
enum gpiod_line_drive drive;
enum gpiod_line_edge edge;
enum gpiod_line_bias bias;
int ret, active_low;
ret = PyArg_ParseTupleAndKeywords(args, kwargs, "IIIIpkII", kwlist,
&direction, &edge, &bias, &drive, &active_low,
&debounce_period, &event_clock, &output_value);
if (!ret)
return -1;
self->settings = gpiod_line_settings_new();
if (!self->settings) {
Py_gpiod_SetErrFromErrno();
return -1;
}
ret = gpiod_line_settings_set_direction(self->settings, direction);
if (ret)
return set_error();
ret = gpiod_line_settings_set_edge_detection(self->settings, edge);
if (ret)
return set_error();
ret = gpiod_line_settings_set_bias(self->settings, bias);
if (ret)
return set_error();
ret = gpiod_line_settings_set_drive(self->settings, drive);
if (ret)
return set_error();
gpiod_line_settings_set_active_low(self->settings, active_low);
gpiod_line_settings_set_debounce_period_us(self->settings,
debounce_period);
ret = gpiod_line_settings_set_edge_detection(self->settings, edge);
if (ret)
return set_error();
ret = gpiod_line_settings_set_output_value(self->settings,
output_value);
if (ret)
return set_error();
ret = gpiod_line_settings_set_event_clock(self->settings, event_clock);
if (ret)
return set_error();
return 0;
}
static void line_settings_finalize(line_settings_object *self)
{
if (self->settings)
gpiod_line_settings_free(self->settings);
}
PyTypeObject line_settings_type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "gpiod._ext.LineSettings",
.tp_basicsize = sizeof(line_settings_object),
.tp_flags = Py_TPFLAGS_DEFAULT,
.tp_new = PyType_GenericNew,
.tp_init = (initproc)line_settings_init,
.tp_finalize = (destructor)line_settings_finalize,
.tp_dealloc = (destructor)Py_gpiod_dealloc,
};
struct gpiod_line_settings *Py_gpiod_LineSettingsGetData(PyObject *obj)
{
line_settings_object *settings;
PyObject *type;
type = PyObject_Type(obj);
if (!type)
return NULL;
if ((PyTypeObject *)type != &line_settings_type) {
PyErr_SetString(PyExc_TypeError,
"not a gpiod._ext.LineSettings object");
Py_DECREF(type);
return NULL;
}
Py_DECREF(type);
settings = (line_settings_object *)obj;
return settings->settings;
}
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