summaryrefslogtreecommitdiffstats
path: root/utils/zenutils/source/firmware_make/main.cpp
blob: 29d0d20d8308f770f4e3e8d6acde0bdf665c9bd0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
/* zenutils - Utilities for working with creative firmwares.
 * Copyright 2007 (c) Rasmus Ry <rasmus.ry{at}gmail.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 2 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <iostream>
#include <sstream>
#include <getpot/GetPot>
#include <file.h>
#include <firmware.h>
#include <utils.h>


static const char VERSION[] = "0.1";

void print_version()
{
    std::cout
        << "firmware_make - Creates a Creative firmware archive." << std::endl
        << "Version " << VERSION << std::endl
        << "Copyright (c) 2007 Rasmus Ry" << std::endl;
}

void print_help()
{
    print_version();
    std::cout << std::endl
        << "Usage: firmware_make [command] [options]" << std::endl
        << std::endl
        << " Commands:" << std::endl
        << "  -h,--help" << std::endl
        << "      prints this message." << std::endl
        << "  -m,--makefile [file]" << std::endl
        << "      specifies the .mk file to build the firmware archive from."
        << std::endl << std::endl
        << " Options:" << std::endl
        << "  -V,--verbose" << std::endl
        << "      prints verbose messages." << std::endl
        << "  -f,--firmware [file]" << std::endl
        << "      specifies the output firmware file name" << std::endl
        << std::endl
        ;
}

dword get_tag_value(std::string tag)
{
    if (tag[0] == '0' && tag[1] == 'x')
    {
        dword val = 0;
        if (sscanf(tag.c_str(), "0x%08X", &val) == 1)
            return val;
        if (sscanf(tag.c_str(), "0x%08x", &val) == 1)
            return val;
    }
    else
    {
        return shared::swap(*(dword*)&tag[0]);
    }
    return 0;
}

bool process_child(const GetPot& mkfile, const std::string& root, int index,
                   zen::firmware_entry& entry)
{
    std::stringstream sstm;
    sstm << root << "/" << index;
    std::string var = sstm.str() + "/tag";
    std::string tag = mkfile(var.c_str(), "");
    var = sstm.str() + "/name";
    std::string name = mkfile(var.c_str(), "");
    var = sstm.str() + "/file";
    std::string file = mkfile(var.c_str(), "");

    if (file.empty() || tag.empty())
    {
        std::cerr << "Invalid file or tag for var: " << sstm.str()
                  << std::endl;
        return false;
    }

    shared::bytes buffer;
    if (!shared::read_file(file, buffer))
    {
        std::cerr << "Failed to read the file: " << file << std::endl;
        return false;
    }

    entry.get_bytes().clear();
    entry.get_header().tag = get_tag_value(tag);
    size_t contoff = entry.get_content_offset();
    if (contoff)
    {
        entry.get_bytes().resize(contoff, 0);
        if (!name.empty())
        {
            size_t endoff = entry.is_big_endian() ? 1 : 0;
            for (int i = 0; i < name.size(); ++i)
                entry.get_bytes()[i * 2 + endoff] = name[i];
        }
    }
    entry.get_bytes().insert(entry.get_bytes().end(), buffer.begin(),
                             buffer.end());

    entry.get_header().size = entry.get_bytes().size();

    return true;
}

int process_arguments(int argc, char* argv[])
{
    //--------------------------------------------------------------------
    // Parse input variables.
    //--------------------------------------------------------------------

    GetPot cl(argc, argv);
    if (cl.size() == 1 || cl.search(2, "-h", "--help"))
    {
        print_help();
        return 1;
    }

    std::string makefile;
    if (cl.search("-m") || cl.search("--makefile"))
        makefile = cl.next("");
    if (makefile.empty())
    {
        std::cerr << "Makefile must be specified." << std::endl;
        return 2;
    }

    std::string firmware;
    if (cl.search("-f") || cl.search("--firmware"))
        firmware = cl.next("");
    if (firmware.empty())
    {
        std::cerr << "Firmware must be specified." << std::endl;
        return 3;
    }

    bool verbose = false;
    if (cl.search("-V") || cl.search("--verbose"))
        verbose = true;

    GetPot mkfile(makefile.c_str());
    if (verbose)
        mkfile.print();

    bool big_endian;
    std::string endian = mkfile("endian", "little");
    if (endian == "little")
    {
        big_endian = false;
    }
    else if (endian == "big")
    {
        big_endian = true;
    }
    else
    {
        std::cerr << "Invalid value of 'endian'" << std::endl;
        return 4;
    }

    zen::firmware_archive archive(big_endian);
    int childcount = mkfile("children/count", 0);
    if (!childcount)
    {
        std::cerr << "A firmware archive must have at least one child entry."
                  << std::endl;
        return 5;
    }

    for (int i = 0; i < childcount; i++)
    {
        zen::firmware_entry entry(big_endian);
        if (!process_child(mkfile, "children", i, entry))
        {
            return 6;
        }
        archive.get_children().push_back(entry);
    }

    int neighbourcount = mkfile("neighbours/count", 0);
    for (int i = 0; i < neighbourcount; i++)
    {
        zen::firmware_entry entry(big_endian);
        if (!process_child(mkfile, "neighbours", i, entry))
        {
            return 7;
        }
        archive.get_neighbours().push_back(entry);
    }

    std::ofstream ofs;
    ofs.open(firmware.c_str(), std::ios::out|std::ios::binary|std::ios::trunc);
    if (!ofs)
    {
        std::cerr << "Failed to create the firmware file." << std::endl;
        return 8;
    }

    if (!archive.write(ofs))
    {
        std::cerr << "Failed to save the firmware archive." << std::endl;
        return 9;
    }
    ofs.close();

    size_t length = archive.calc_size();
    if (!length)
    {
        std::cerr << "Failed to determine the size of the firmware archive."
                  << std::endl;
        return 10;
    }

    int align = length % 4;
    if (align)
    {
        shared::bytes padding(4 - align, 0);
        if (!shared::write_file(firmware, padding, false, length))
        {
            std::cerr << "Failed to write padding data." << std::endl;
            return 11;
        }
    }

    return 0;
}

int main(int argc, char* argv[])
{
    try
    {
        return process_arguments(argc, argv);
    }
    catch (const std::exception& xcpt)
    {
        std::cerr << "Exception caught: " << xcpt.what() << std::endl;
        return -1;
    }
    catch (...)
    {
        std::cerr << "Unknown exception caught." << std::endl;
        return -2;
    }
    return -3;
}