]>
Commit | Line | Data |
---|---|---|
bc5f5a43 BV |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2012 Bert Vermeulen <bert@biot.com> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include "sigrokdecode.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */ | |
21 | #include "config.h" | |
22 | #include <inttypes.h> | |
23 | #include <string.h> | |
24 | ||
25 | ||
26 | PyObject *srd_logic_iter(PyObject *self) | |
27 | { | |
28 | ||
29 | return self; | |
30 | } | |
31 | ||
32 | PyObject *srd_logic_iternext(PyObject *self) | |
33 | { | |
34 | PyObject *py_samplenum, *py_samples; | |
35 | srd_logic *logic; | |
36 | uint64_t sample; | |
37 | int i; | |
38 | unsigned char probe_samples[SRD_MAX_NUM_PROBES]; | |
39 | ||
40 | logic = (srd_logic *) self; | |
41 | if (logic->itercnt >= logic->inbuflen / logic->di->unitsize) { | |
42 | /* End iteration loop. */ | |
43 | return NULL; | |
44 | } | |
45 | ||
46 | /* TODO: use number of probes defined in the PD, in the order the PD | |
47 | * defined them -- not whatever came in from the driver. | |
48 | */ | |
49 | /* Convert the bit-packed sample to an array of bytes, with only 0x01 | |
50 | * and 0x00 values, so the PD doesn't need to do any bitshifting. | |
51 | */ | |
52 | memcpy(&sample, logic->inbuf + logic->itercnt * logic->di->unitsize, | |
53 | logic->di->unitsize); | |
54 | for (i = 0; i < logic->di->num_probes; i++) { | |
55 | probe_samples[i] = sample & 0x01; | |
56 | sample >>= 1; | |
57 | } | |
58 | ||
59 | /* TODO: samplenum should be in the inbuf feed, instead of time/duration. | |
60 | * fake it for now... | |
61 | */ | |
62 | /* Prepare the next samplenum/sample list in this iteration. */ | |
63 | py_samplenum = PyLong_FromUnsignedLongLong(logic->itercnt++); | |
64 | PyList_SetItem(logic->sample, 0, py_samplenum); | |
65 | py_samples = PyBytes_FromStringAndSize((const char *)probe_samples, | |
66 | logic->di->num_probes); | |
67 | PyList_SetItem(logic->sample, 1, py_samples); | |
68 | Py_INCREF(logic->sample); | |
69 | ||
70 | return logic->sample; | |
71 | } | |
72 | ||
73 | PyTypeObject srd_logic_type = { | |
74 | PyVarObject_HEAD_INIT(NULL, 0) | |
75 | .tp_name = "srd_logic", | |
76 | .tp_basicsize = sizeof(srd_logic), | |
77 | .tp_flags = Py_TPFLAGS_DEFAULT, | |
78 | .tp_doc = "Sigrokdecode logic sample object", | |
79 | .tp_iter = srd_logic_iter, | |
80 | .tp_iternext = srd_logic_iternext, | |
81 | }; | |
82 |