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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk> | |
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 2 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 <cassert> | |
21 | ||
22 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
23 | #include <libsigrokdecode/libsigrokdecode.h> | |
24 | ||
25 | #include "decoder.hpp" | |
26 | ||
27 | #include <pv/data/signalbase.hpp> | |
28 | #include <pv/data/decodesignal.hpp> | |
29 | ||
30 | using pv::data::DecodeChannel; | |
31 | using std::map; | |
32 | using std::string; | |
33 | ||
34 | namespace pv { | |
35 | namespace data { | |
36 | namespace decode { | |
37 | ||
38 | Decoder::Decoder(const srd_decoder *const dec) : | |
39 | decoder_(dec), | |
40 | shown_(true) | |
41 | { | |
42 | } | |
43 | ||
44 | Decoder::~Decoder() | |
45 | { | |
46 | for (auto& option : options_) | |
47 | g_variant_unref(option.second); | |
48 | } | |
49 | ||
50 | const srd_decoder* Decoder::decoder() const | |
51 | { | |
52 | return decoder_; | |
53 | } | |
54 | ||
55 | bool Decoder::shown() const | |
56 | { | |
57 | return shown_; | |
58 | } | |
59 | ||
60 | void Decoder::show(bool show) | |
61 | { | |
62 | shown_ = show; | |
63 | } | |
64 | ||
65 | const vector<DecodeChannel*>& Decoder::channels() const | |
66 | { | |
67 | return channels_; | |
68 | } | |
69 | ||
70 | void Decoder::set_channels(vector<DecodeChannel*> channels) | |
71 | { | |
72 | channels_ = channels; | |
73 | } | |
74 | ||
75 | const map<string, GVariant*>& Decoder::options() const | |
76 | { | |
77 | return options_; | |
78 | } | |
79 | ||
80 | void Decoder::set_option(const char *id, GVariant *value) | |
81 | { | |
82 | assert(value); | |
83 | g_variant_ref(value); | |
84 | options_[id] = value; | |
85 | } | |
86 | ||
87 | bool Decoder::have_required_channels() const | |
88 | { | |
89 | for (DecodeChannel *ch : channels_) | |
90 | if (!ch->assigned_signal && !ch->is_optional) | |
91 | return false; | |
92 | ||
93 | return true; | |
94 | } | |
95 | ||
96 | srd_decoder_inst* Decoder::create_decoder_inst(srd_session *session) const | |
97 | { | |
98 | GHashTable *const opt_hash = g_hash_table_new_full(g_str_hash, | |
99 | g_str_equal, g_free, (GDestroyNotify)g_variant_unref); | |
100 | ||
101 | for (const auto& option : options_) { | |
102 | GVariant *const value = option.second; | |
103 | g_variant_ref(value); | |
104 | g_hash_table_replace(opt_hash, (void*)g_strdup( | |
105 | option.first.c_str()), value); | |
106 | } | |
107 | ||
108 | srd_decoder_inst *const decoder_inst = srd_inst_new( | |
109 | session, decoder_->id, opt_hash); | |
110 | g_hash_table_destroy(opt_hash); | |
111 | ||
112 | if (!decoder_inst) | |
113 | return nullptr; | |
114 | ||
115 | // Setup the channels | |
116 | GArray *const init_pin_states = g_array_sized_new(false, true, | |
117 | sizeof(uint8_t), channels_.size()); | |
118 | ||
119 | g_array_set_size(init_pin_states, channels_.size()); | |
120 | ||
121 | GHashTable *const channels = g_hash_table_new_full(g_str_hash, | |
122 | g_str_equal, g_free, (GDestroyNotify)g_variant_unref); | |
123 | ||
124 | for (DecodeChannel *ch : channels_) { | |
125 | init_pin_states->data[ch->id] = ch->initial_pin_state; | |
126 | ||
127 | GVariant *const gvar = g_variant_new_int32(ch->id); // id = bit position | |
128 | g_variant_ref_sink(gvar); | |
129 | // key is channel name, value is bit position in each sample | |
130 | g_hash_table_insert(channels, ch->pdch_->id, gvar); | |
131 | } | |
132 | ||
133 | srd_inst_channel_set_all(decoder_inst, channels); | |
134 | ||
135 | srd_inst_initial_pins_set_all(decoder_inst, init_pin_states); | |
136 | g_array_free(init_pin_states, true); | |
137 | ||
138 | return decoder_inst; | |
139 | } | |
140 | ||
141 | } // namespace decode | |
142 | } // namespace data | |
143 | } // namespace pv |