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// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include <gpiod.h>
#include <Python.h>
struct module_const {
const char *name;
long val;
};
static const struct module_const module_constants[] = {
{
.name = "VALUE_INACTIVE",
.val = GPIOD_LINE_VALUE_INACTIVE,
},
{
.name = "VALUE_ACTIVE",
.val = GPIOD_LINE_VALUE_ACTIVE,
},
{
.name = "DIRECTION_AS_IS",
.val = GPIOD_LINE_DIRECTION_AS_IS,
},
{
.name = "DIRECTION_INPUT",
.val = GPIOD_LINE_DIRECTION_INPUT,
},
{
.name = "DIRECTION_OUTPUT",
.val = GPIOD_LINE_DIRECTION_OUTPUT,
},
{
.name = "BIAS_AS_IS",
.val = GPIOD_LINE_BIAS_AS_IS,
},
{
.name = "BIAS_UNKNOWN",
.val = GPIOD_LINE_BIAS_UNKNOWN,
},
{
.name = "BIAS_DISABLED",
.val = GPIOD_LINE_BIAS_DISABLED,
},
{
.name = "BIAS_PULL_UP",
.val = GPIOD_LINE_BIAS_PULL_UP,
},
{
.name = "BIAS_PULL_DOWN",
.val = GPIOD_LINE_BIAS_PULL_DOWN,
},
{
.name = "DRIVE_PUSH_PULL",
.val = GPIOD_LINE_DRIVE_PUSH_PULL,
},
{
.name = "DRIVE_OPEN_DRAIN",
.val = GPIOD_LINE_DRIVE_OPEN_DRAIN,
},
{
.name = "DRIVE_OPEN_SOURCE",
.val = GPIOD_LINE_DRIVE_OPEN_SOURCE,
},
{
.name = "EDGE_NONE",
.val = GPIOD_LINE_EDGE_NONE,
},
{
.name = "EDGE_FALLING",
.val = GPIOD_LINE_EDGE_FALLING,
},
{
.name = "EDGE_RISING",
.val = GPIOD_LINE_EDGE_RISING,
},
{
.name = "EDGE_BOTH",
.val = GPIOD_LINE_EDGE_BOTH,
},
{
.name = "CLOCK_MONOTONIC",
.val = GPIOD_LINE_CLOCK_MONOTONIC,
},
{
.name = "CLOCK_REALTIME",
.val = GPIOD_LINE_CLOCK_REALTIME,
},
{
.name = "CLOCK_HTE",
.val = GPIOD_LINE_CLOCK_HTE,
},
{
.name = "EDGE_EVENT_TYPE_RISING",
.val = GPIOD_EDGE_EVENT_RISING_EDGE,
},
{
.name = "EDGE_EVENT_TYPE_FALLING",
.val = GPIOD_EDGE_EVENT_FALLING_EDGE,
},
{
.name = "INFO_EVENT_TYPE_LINE_REQUESTED",
.val = GPIOD_INFO_EVENT_LINE_REQUESTED,
},
{
.name = "INFO_EVENT_TYPE_LINE_RELEASED",
.val = GPIOD_INFO_EVENT_LINE_RELEASED,
},
{
.name = "INFO_EVENT_TYPE_LINE_CONFIG_CHANGED",
.val = GPIOD_INFO_EVENT_LINE_CONFIG_CHANGED,
},
{ }
};
static PyObject *
module_is_gpiochip_device(PyObject *Py_UNUSED(self), PyObject *args)
{
const char *path;
int ret;
ret = PyArg_ParseTuple(args, "s", &path);
if (!ret)
return NULL;
return PyBool_FromLong(gpiod_is_gpiochip_device(path));
}
static PyMethodDef module_methods[] = {
{
.ml_name = "is_gpiochip_device",
.ml_meth = (PyCFunction)module_is_gpiochip_device,
.ml_flags = METH_VARARGS,
},
{ }
};
static PyModuleDef module_def = {
PyModuleDef_HEAD_INIT,
.m_name = "gpiod._ext",
.m_methods = module_methods,
};
extern PyTypeObject chip_type;
extern PyTypeObject line_config_type;
extern PyTypeObject line_settings_type;
extern PyTypeObject request_type;
static PyTypeObject *types[] = {
&chip_type,
&line_config_type,
&line_settings_type,
&request_type,
NULL,
};
PyMODINIT_FUNC PyInit__ext(void)
{
const struct module_const *modconst;
PyObject *module, *all;
PyTypeObject **type;
int ret;
module = PyModule_Create(&module_def);
if (!module)
return NULL;
ret = PyModule_AddStringConstant(module, "api_version",
gpiod_api_version());
if (ret) {
Py_DECREF(module);
return NULL;
}
all = PyList_New(0);
if (!all) {
Py_DECREF(module);
return NULL;
}
ret = PyModule_AddObject(module, "__all__", all);
if (ret) {
Py_DECREF(all);
Py_DECREF(module);
return NULL;
}
for (type = types; *type; type++) {
ret = PyModule_AddType(module, *type);
if (ret) {
Py_DECREF(module);
return NULL;
}
}
for (modconst = module_constants; modconst->name; modconst++) {
ret = PyModule_AddIntConstant(module,
modconst->name, modconst->val);
if (ret) {
Py_DECREF(module);
return NULL;
}
}
return module;
}
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