]> sigrok.org Git - libsigrokdecode.git/blobdiff - controller.c
convert data coming in from a PD to C structs
[libsigrokdecode.git] / controller.c
index efeef2808e70c56fe074f9309a8f389acf160d20..19dc2525cc43af06749a8722c3a9d176239c2b32 100644 (file)
@@ -2,7 +2,7 @@
  * This file is part of the sigrok project.
  *
  * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
- * Copyright (C) 2011 Bert Vermeulen <bert@biot.com>
+ * 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
  */
 
 #include "config.h"
-#include <sigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
+#include "sigrokdecode.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */
 #include <glib.h>
-
-/* TODO: this should probably be in sigrokdecode.h */
-/* Re-define some string functions for Python >= 3.0. */
-#if PY_VERSION_HEX >= 0x03000000
-#define PyString_AsString PyBytes_AsString
-#define PyString_FromString PyBytes_FromString
-#define PyString_Check PyBytes_Check
-#endif
+#include <inttypes.h>
 
 
 /* TODO
 static GSList *pipelines = NULL;
-*/
-
-/* lives in decoder.c */
-extern GSList *pd_list;
-extern GSList *di_list;
-
 struct srd_pipeline {
        int id;
        GSList *decoders;
 };
+*/
 
+/* lives in decoder.c */
+extern GSList *pd_list;
+extern GSList *di_list;
 
+/* lives in module_sigrokdecode.c */
+extern PyMODINIT_FUNC PyInit_sigrokdecode(void);
 
-static PyObject *Decoder_init(PyObject *self, PyObject *args)
-{
-       (void)self;
-       (void)args;
-//     printf("init object %x\n", self);
-
-       Py_RETURN_NONE;
-}
-
-struct srd_decoder_instance *get_di_by_decobject(void *decobject);
-
-static PyObject *Decoder_put(PyObject *self, PyObject *args)
-{
-       GSList *l;
-       PyObject *data;
-       struct srd_decoder_instance *di;
-       struct srd_pd_output *pdo;
-       int output_id;
-
-       if (!(di = get_di_by_decobject(self)))
-               return NULL;
-
-       printf("put: %s instance %x: ", di->decoder->name, (unsigned int) di);
-
-       if (!PyArg_ParseTuple(args, "iO", &output_id, &data))
-               return NULL;
-
-       if (!(l = g_slist_nth(di->pd_output, output_id)))
-               /* PD supplied invalid output id */
-               /* TODO: better error message */
-               return NULL;
-       pdo = l->data;
-
-       printf("output type %d: ", pdo->output_type);
-       PyObject_Print(data, stdout, Py_PRINT_RAW);
-       puts("");
-
-       Py_RETURN_NONE;
-}
-
-
-static PyObject *Decoder_output_new(PyObject *self, PyObject *py_output_type)
-{
-       PyObject *ret;
-       struct srd_decoder_instance *di;
-       char *protocol_id, *description;
-       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(args, "i:output_type,s:protocol_id,s:description",
-//                     &output_type, &protocol_id, &description))
-       if (!PyArg_ParseTuple(py_output_type, "i:output_type", &output_type))
-               return NULL;
-
-       protocol_id = "i2c";
-       description = "blah";
-       pdo_id = pd_output_new(di, output_type, protocol_id, description);
-       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[] = {
-       {"__init__", Decoder_init, METH_VARARGS, ""},
-       {"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 sigrok_Decoder_type = {
-       PyObject_HEAD_INIT(NULL)
-       .tp_name = "sigrok.Decoder",
-       .tp_basicsize = sizeof(sigrok_Decoder_object),
-       .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
-       .tp_doc = "Sigrok Decoder object",
-       .tp_methods = Decoder_methods,
-};
-
-PyMODINIT_FUNC init_sigrok_Decoder(void)
-{
-       PyObject *mod;
-
-       /* assign this here, for compiler portability */
-       sigrok_Decoder_type.tp_new = PyType_GenericNew;
-       if (PyType_Ready(&sigrok_Decoder_type) < 0)
-               return;
-
-       mod = Py_InitModule3("sigrok", no_methods, "sigrok base classes");
-       Py_INCREF(&sigrok_Decoder_type);
-       PyModule_AddObject(mod, "Decoder", (PyObject *)&sigrok_Decoder_type);
-
-}
-
-
-struct srd_decoder_instance *get_di_by_decobject(void *decobject)
-{
-       GSList *l;
-       struct srd_decoder_instance *di;
-
-       for (l = di_list; l; l = l->next) {
-               di = l->data;
-               if (decobject == di->py_instance)
-                       return di;
-       }
+/* lives in type_logic.c */
+extern PyTypeObject srd_logic_type;
 
-       return NULL;
-}
 
 /**
  * Initialize libsigrokdecode.
@@ -195,12 +69,11 @@ int srd_init(void)
 {
        int ret;
 
+       PyImport_AppendInittab("sigrokdecode", PyInit_sigrokdecode);
+
        /* Py_Initialize() returns void and usually cannot fail. */
        Py_Initialize();
 
-       init_sigrok_Decoder();
-
-       PyRun_SimpleString("import sys;");
        if ((ret = set_modulepath()) != SRD_OK) {
                Py_Finalize();
                return ret;
@@ -250,6 +123,7 @@ int set_modulepath(void)
 {
        int ret;
 
+       PyRun_SimpleString("import sys");
        ret = PyRun_SimpleString("sys.path.append(r'" DECODERS_DIR "');");
 
        return ret;
@@ -271,6 +145,7 @@ struct srd_decoder_instance *srd_instance_new(const char *id)
        di = g_malloc(sizeof(*di));
        di->decoder = dec;
        di->pd_output = NULL;
+       di->unitsize = 0;
 
        /* Create an empty Python tuple. */
        if (!(py_args = PyTuple_New(0))) { /* NEWREF */
@@ -309,7 +184,7 @@ int srd_instance_set_probe(struct srd_decoder_instance *di,
                return SRD_ERR_PYTHON; /* TODO: More specific error? */
        }
 
-       probenum = PyInt_FromLong(num);
+       probenum = PyLong_FromLong(num);
        PyMapping_SetItemString(probedict, (char *)probename, probenum);
 
        Py_XDECREF(probenum);
@@ -319,22 +194,21 @@ int srd_instance_set_probe(struct srd_decoder_instance *di,
 }
 
 
-int srd_session_start(const char *driver, int unitsize, uint64_t starttime,
-               uint64_t samplerate)
+int srd_session_start(int num_probes, int unitsize, uint64_t samplerate)
 {
        PyObject *py_res;
        GSList *d;
        struct srd_decoder_instance *di;
 
-       fprintf(stdout, "%s: %s\n", __func__, driver);
+       fprintf(stdout, "%s\n", __func__);
 
        for (d = di_list; d; d = d->next) {
                di = d->data;
+               di->num_probes = num_probes;
+               di->unitsize = unitsize;
+               di->samplerate = samplerate;
                if (!(py_res = PyObject_CallMethod(di->py_instance, "start",
-                                       "{s:s,s:l,s:l,s:l}",
-                                       "driver", driver,
-                                       "unitsize", (long)unitsize,
-                                       "starttime", (long)starttime,
+                                   "{s:l}",
                                        "samplerate", (long)samplerate))) {
                        if (PyErr_Occurred())
                                PyErr_Print(); /* Returns void. */
@@ -357,19 +231,14 @@ int srd_session_start(const char *driver, int unitsize, uint64_t starttime,
  *
  * @return SRD_OK upon success, a (negative) error code otherwise.
  */
-int srd_run_decoder(struct srd_decoder_instance *dec,
-                   uint8_t *inbuf, uint64_t inbuflen)
+int srd_run_decoder(uint64_t timeoffset, uint64_t duration,
+               struct srd_decoder_instance *di, uint8_t *inbuf, uint64_t inbuflen)
 {
        PyObject *py_instance, *py_res;
-       /* FIXME: Don't have a timebase available here. Make one up. */
-       static int _timehack = 0;
-
-       _timehack += inbuflen;
-
-//     fprintf(stdout, "%s: %s\n", __func__, dec->decoder->name);
+       srd_logic *logic;
 
        /* Return an error upon unusable input. */
-       if (dec == NULL)
+       if (di == NULL)
                return SRD_ERR_ARG; /* TODO: More specific error? */
        if (inbuf == NULL)
                return SRD_ERR_ARG; /* TODO: More specific error? */
@@ -377,14 +246,20 @@ int srd_run_decoder(struct srd_decoder_instance *dec,
                return SRD_ERR_ARG; /* TODO: More specific error? */
 
        /* TODO: Error handling. */
-       py_instance = dec->py_instance;
+       py_instance = di->py_instance;
        Py_XINCREF(py_instance);
 
+       logic = PyObject_New(srd_logic, &srd_logic_type);
+       Py_INCREF(logic);
+       logic->di = di;
+       logic->itercnt = 0;
+       logic->inbuf = inbuf;
+       logic->inbuflen = inbuflen;
+       logic->sample = PyList_New(2);
+       Py_INCREF(logic->sample);
+
        if (!(py_res = PyObject_CallMethod(py_instance, "decode",
-                                          "{s:i,s:i,s:s#}",
-                                          "time", _timehack,
-                                          "duration", 10,
-                                          "data", inbuf, inbuflen))) { /* NEWREF */
+                       "KKO", timeoffset, duration, logic))) {
                if (PyErr_Occurred())
                        PyErr_Print(); /* Returns void. */
 
@@ -392,12 +267,14 @@ int srd_run_decoder(struct srd_decoder_instance *dec,
        }
 
        Py_XDECREF(py_res);
+
        return SRD_OK;
 }
 
 
 /* Feed logic samples to decoder session. */
-int srd_session_feed(uint8_t *inbuf, uint64_t inbuflen)
+int srd_session_feed(uint64_t timeoffset, uint64_t duration, uint8_t *inbuf,
+               uint64_t inbuflen)
 {
        GSList *d;
        int ret;
@@ -405,7 +282,8 @@ int srd_session_feed(uint8_t *inbuf, uint64_t inbuflen)
 //     fprintf(stdout, "%s: %d bytes\n", __func__, inbuflen);
 
        for (d = di_list; d; d = d->next) {
-               if ((ret = srd_run_decoder(d->data, inbuf, inbuflen)) != SRD_OK)
+               if ((ret = srd_run_decoder(timeoffset, duration, d->data, inbuf,
+                               inbuflen)) != SRD_OK)
                        return ret;
        }
 
@@ -414,33 +292,38 @@ int srd_session_feed(uint8_t *inbuf, uint64_t inbuflen)
 
 
 int pd_output_new(struct srd_decoder_instance *di, int output_type,
-               char *protocol_id, char *description)
+               char *protocol_id)
 {
-       GSList *l;
        struct srd_pd_output *pdo;
-       int pdo_id;
-
-       fprintf(stdout, "%s: output type %d, protocol_id %s, description %s\n",
-                       __func__, output_type, protocol_id, description);
-
-       pdo_id = -1;
-       for (l = di->pd_output; l; l = l->next) {
-               pdo = l->data;
-               if (pdo->pdo_id > pdo_id)
-                       pdo_id = pdo->pdo_id;
-       }
-       pdo_id++;
 
        if (!(pdo = g_try_malloc(sizeof(struct srd_pd_output))))
                return -1;
 
-       pdo->pdo_id = pdo_id;
+       /* pdo_id is just a simple index, nothing is deleted from this list anway */
+       pdo->pdo_id = g_slist_length(di->pd_output);
        pdo->output_type = output_type;
+       pdo->decoder = di->decoder;
        pdo->protocol_id = g_strdup(protocol_id);
-       pdo->description = g_strdup(description);
        di->pd_output = g_slist_append(di->pd_output, pdo);
 
-       return pdo_id;
+       fprintf(stdout, "%s: output type %d, protocol_id %s, id %d\n",
+                       __func__, output_type, protocol_id, pdo->pdo_id);
+
+       return pdo->pdo_id;
+}
+
+struct srd_decoder_instance *get_di_by_decobject(void *decobject)
+{
+       GSList *l;
+       struct srd_decoder_instance *di;
+
+       for (l = di_list; l; l = l->next) {
+               di = l->data;
+               if (decobject == di->py_instance)
+                       return di;
+       }
+
+       return NULL;
 }