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/*
* This file is part of the sigrok project.
*
* Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "sigrokdecode.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */
#include "sigrokdecode-internal.h"
#include "config.h"
/* lives in type_logic.c */
extern PyTypeObject srd_logic_type;
static int convert_pyobj(struct srd_decoder_instance *di, PyObject *obj,
int *annotation_format, char ***annotation)
{
PyObject *py_tmp;
struct srd_pd_output *pdo;
int ann_id;
/* Should be a list of [annotation format, [string, ...]] */
if (!PyList_Check(obj) && !PyTuple_Check(obj)) {
srd_err("Protocol decoder %s submitted %s instead of list",
di->decoder->name, obj->ob_type->tp_name);
return SRD_ERR_PYTHON;
}
/* Should have 2 elements... */
if (PyList_Size(obj) != 2) {
srd_err("Protocol decoder %s submitted annotation list with %d elements instead of 2",
di->decoder->name, PyList_Size(obj));
return SRD_ERR_PYTHON;
}
/* First element should be an integer matching a previously
* registered annotation format. */
py_tmp = PyList_GetItem(obj, 0);
if (!PyLong_Check(py_tmp)) {
srd_err("Protocol decoder %s submitted annotation list, but first element was not an integer",
di->decoder->name);
return SRD_ERR_PYTHON;
}
ann_id = PyLong_AsLong(py_tmp);
if (!(pdo = g_slist_nth_data(di->decoder->annotation, ann_id))) {
srd_err("Protocol decoder %s submitted data to non-existent annotation format %d",
di->decoder->name, ann_id);
return SRD_ERR_PYTHON;
}
*annotation_format = ann_id;
/* Second element must be a list */
py_tmp = PyList_GetItem(obj, 1);
if (!PyList_Check(py_tmp)) {
srd_err("Protocol decoder %s submitted annotation list, but second element was not a list",
di->decoder->name);
return SRD_ERR_PYTHON;
}
if (py_strlist_to_char(py_tmp, annotation) != SRD_OK) {
srd_err("Protocol decoder %s submitted annotation list, but second element was malformed",
di->decoder->name);
return SRD_ERR_PYTHON;
}
return SRD_OK;
}
/* TODO: not used, doesn't work actually */
static PyObject *Decoder_init(PyObject *self, PyObject *args)
{
(void)self;
(void)args;
printf("init Decoder object %p\n", self);
Py_RETURN_NONE;
}
static PyObject *Decoder_put(PyObject *self, PyObject *args)
{
GSList *l;
PyObject *data;
struct srd_decoder_instance *di;
struct srd_pd_output *pdo;
uint64_t timeoffset, duration;
int output_id, annotation_format, i;
char **annotation, **ann_info;
if (!(di = get_di_by_decobject(self)))
return NULL;
if (!PyArg_ParseTuple(args, "KKiO", &timeoffset, &duration, &output_id, &data))
return NULL;
if (!(l = g_slist_nth(di->pd_output, output_id))) {
srd_err("Protocol decoder %s submitted invalid output ID %d",
di->decoder->name, output_id);
return NULL;
}
pdo = l->data;
switch (pdo->output_type) {
case SRD_OUTPUT_ANNOTATION:
if (convert_pyobj(di, data, &annotation_format, &annotation) != SRD_OK)
return NULL;
/* TODO: SRD_OUTPUT_ANNOTATION should go back up to the caller */
ann_info = g_slist_nth_data(pdo->decoder->annotation, annotation_format);
printf("annotation format %d (%s): ", annotation_format, ann_info[0]);
for (i = 0; annotation[i]; i++)
printf("\"%s\" ", annotation[i]);
printf("\n");
break;
case SRD_OUTPUT_PROTOCOL:
/* TODO: SRD_OUTPUT_PROTOCOL should go up the PD stack. */
printf("%s protocol data: ", pdo->decoder->name);
PyObject_Print(data, stdout, Py_PRINT_RAW);
puts("");
break;
default:
srd_err("Protocol decoder %s submitted invalid output type %d",
di->decoder->name, pdo->output_type);
break;
}
Py_RETURN_NONE;
}
static PyObject *Decoder_output_new(PyObject *self, PyObject *py_output_type)
{
PyObject *ret;
struct srd_decoder_instance *di;
char *protocol_id;
int output_type, pdo_id;
if (!(di = get_di_by_decobject(self)))
return NULL;
printf("output_new di %s\n", di->decoder->name);
if (!PyArg_ParseTuple(py_output_type, "i:output_type", &output_type))
return NULL;
/* TODO: take protocol_id from python */
protocol_id = "i2c";
pdo_id = pd_output_new(di, output_type, protocol_id);
if (pdo_id < 0)
Py_RETURN_NONE;
else
ret = Py_BuildValue("i", pdo_id);
return ret;
}
static PyMethodDef no_methods[] = { {NULL, NULL, 0, NULL} };
static PyMethodDef Decoder_methods[] = {
{"put", Decoder_put, METH_VARARGS,
"Accepts a dictionary with the following keys: time, duration, data"},
{"output_new", Decoder_output_new, METH_VARARGS,
"Create a new output stream"},
{NULL, NULL, 0, NULL}
};
typedef struct {
PyObject_HEAD
} sigrok_Decoder_object;
static PyTypeObject srd_Decoder_type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "sigrokdecode.Decoder",
.tp_basicsize = sizeof(sigrok_Decoder_object),
.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
.tp_doc = "Sigrok Decoder object",
.tp_methods = Decoder_methods,
.tp_init = (initproc) Decoder_init,
};
static struct PyModuleDef sigrokdecode_module = {
PyModuleDef_HEAD_INIT,
.m_name = "sigrokdecode",
.m_doc = "sigrokdecode base class",
.m_size = -1,
.m_methods = no_methods,
};
PyMODINIT_FUNC PyInit_sigrokdecode(void)
{
PyObject *mod;
/* tp_new needs to be assigned here for compiler portability */
srd_Decoder_type.tp_new = PyType_GenericNew;
if (PyType_Ready(&srd_Decoder_type) < 0)
return NULL;
srd_logic_type.tp_new = PyType_GenericNew;
if (PyType_Ready(&srd_logic_type) < 0)
return NULL;
mod = PyModule_Create(&sigrokdecode_module);
Py_INCREF(&srd_Decoder_type);
if (PyModule_AddObject(mod, "Decoder", (PyObject *)&srd_Decoder_type) == -1)
return NULL;
Py_INCREF(&srd_logic_type);
if (PyModule_AddObject(mod, "srd_logic", (PyObject *)&srd_logic_type) == -1)
return NULL;
return mod;
}
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