convert data coming in from a PD to C structs
[libsigrokdecode.git] / module_sigrokdecode.c
index b547e9d697019d0f7459ba8423d4b244f37f10ff..d4af5c344a4f40cba32b54156d759372bfe1fde8 100644 (file)
  */
 
 #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 "sigrokdecode-internal.h"
 #include "config.h"
 
 /* lives in type_logic.c */
 extern PyTypeObject srd_logic_type;
 
 
 #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)
 {
 /* TODO: not used, doesn't work actually */
 static PyObject *Decoder_init(PyObject *self, PyObject *args)
 {
@@ -41,7 +96,8 @@ static PyObject *Decoder_put(PyObject *self, PyObject *args)
        struct srd_decoder_instance *di;
        struct srd_pd_output *pdo;
        uint64_t timeoffset, duration;
        struct srd_decoder_instance *di;
        struct srd_pd_output *pdo;
        uint64_t timeoffset, duration;
-       int output_id;
+       int output_id, annotation_format, i;
+       char **annotation, **ann_info;
 
        if (!(di = get_di_by_decobject(self)))
                return NULL;
 
        if (!(di = get_di_by_decobject(self)))
                return NULL;
@@ -50,18 +106,38 @@ static PyObject *Decoder_put(PyObject *self, PyObject *args)
                return NULL;
 
        if (!(l = g_slist_nth(di->pd_output, output_id))) {
                return NULL;
 
        if (!(l = g_slist_nth(di->pd_output, output_id))) {
-               /* PD supplied invalid output id */
-               /* TODO: better error message */
+               srd_err("Protocol decoder %s submitted invalid output ID %d",
+                               di->decoder->name, output_id);
                return NULL;
        }
        pdo = l->data;
 
                return NULL;
        }
        pdo = l->data;
 
-       /* TODO: SRD_OUTPUT_ANNOTATION should go back up to the caller,
-        * and SRD_OUTPUT_PROTOCOL should go up the PD stack.
-        */
-       printf("stream %d: ", pdo->output_type);
-       PyObject_Print(data, stdout, Py_PRINT_RAW);
-       puts("");
+       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;
 }
 
        Py_RETURN_NONE;
 }
@@ -71,7 +147,7 @@ static PyObject *Decoder_output_new(PyObject *self, PyObject *py_output_type)
 {
        PyObject *ret;
        struct srd_decoder_instance *di;
 {
        PyObject *ret;
        struct srd_decoder_instance *di;
-       char *protocol_id, *description;
+       char *protocol_id;
        int output_type, pdo_id;
 
        if (!(di = get_di_by_decobject(self)))
        int output_type, pdo_id;
 
        if (!(di = get_di_by_decobject(self)))
@@ -82,9 +158,9 @@ static PyObject *Decoder_output_new(PyObject *self, PyObject *py_output_type)
        if (!PyArg_ParseTuple(py_output_type, "i:output_type", &output_type))
                return NULL;
 
        if (!PyArg_ParseTuple(py_output_type, "i:output_type", &output_type))
                return NULL;
 
+       /* TODO: take protocol_id from python */
        protocol_id = "i2c";
        protocol_id = "i2c";
-       description = "blah";
-       pdo_id = pd_output_new(di, output_type, protocol_id, description);
+       pdo_id = pd_output_new(di, output_type, protocol_id);
        if (pdo_id < 0)
                Py_RETURN_NONE;
        else
        if (pdo_id < 0)
                Py_RETURN_NONE;
        else