summaryrefslogtreecommitdiffstats
path: root/utils/regtools/headergen.cpp
blob: fc1ce6fba62aaa22009685f44d08962aab95095f (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
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2013 by Amaury Pouly
 *
 * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/ 
#include "soc_desc.hpp"
#include <stdio.h>
#include <stdlib.h>
#include <algorithm>
#include <map>
#include <sstream>
#include <sys/stat.h>
#include <sys/types.h>

#define HEADERGEN_VERSION   "2.1.7"

#define error(...) do{ fprintf(stderr, __VA_ARGS__); exit(1); } while(0)

std::string g_soc_name;
std::string g_soc_dev;
std::string g_soc_reg;
std::string g_soc_field;
std::string g_soc_dev_regs_base;

namespace {
std::string tolower(const std::string s)
{
    std::string res = s;
    std::transform(res.begin(), res.end(), res.begin(), ::tolower);
    return res;
}

std::string toupper(const std::string& s)
{
    std::string res = s;
    std::transform(res.begin(), res.end(), res.begin(), ::toupper);
    return res;
}
}

template< typename T >
std::string to_str(const T& v)
{
    std::ostringstream oss;
    oss << v;
    return oss.str();
}

template< typename T >
std::string to_hex(const T& v)
{
    std::ostringstream oss;
    oss << std::hex << v;
    return oss.str();
}

typedef std::pair< std::string, std::string > xml_ver_t;

void fprint_copyright(FILE *f, const std::vector< xml_ver_t >& versions)
{
    std::ostringstream ver;
    for(size_t i = 0; i < versions.size(); i++)
        ver << " " << versions[i].first << ":" << versions[i].second;

    fprintf(f,"\
/***************************************************************************\n\
 *             __________               __   ___.\n\
 *   Open      \\______   \\ ____   ____ |  | _\\_ |__   _______  ___\n\
 *   Source     |       _//  _ \\_/ ___\\|  |/ /| __ \\ /  _ \\  \\/  /\n\
 *   Jukebox    |    |   (  <_> )  \\___|    < | \\_\\ (  <_> > <  <\n\
 *   Firmware   |____|_  /\\____/ \\___  >__|_ \\|___  /\\____/__/\\_ \\\n\
 *                     \\/            \\/     \\/    \\/            \\/\n\
 * This file was automatically generated by headergen, DO NOT EDIT it.\n\
 * headergen version: " HEADERGEN_VERSION "\n\
 * XML versions:%s\n\
 *\n\
 * Copyright (C) 2013 by Amaury Pouly\n\
 *\n\
 * This program is free software; you can redistribute it and/or\n\
 * modify it under the terms of the GNU General Public License\n\
 * as published by the Free Software Foundation; either version 2\n\
 * of the License, or (at your option) any later version.\n\
 *\n\
 * This software is distributed on an \"AS IS\" basis, WITHOUT WARRANTY OF ANY\n\
 * KIND, either express or implied.\n\
 *\n\
 ****************************************************************************/\n",
ver.str().c_str());
}

void fprint_copyright(FILE *f, const xml_ver_t& version)
{
    fprint_copyright(f, std::vector< xml_ver_t >(1, version));
}

void fprint_include_guard_ex(FILE *f, bool begin, const std::string& name)
{
    if(begin)
    {
        fprintf(f, "#ifndef %s\n", name.c_str());
        fprintf(f, "#define %s\n", name.c_str());
    }
    else
        fprintf(f, "#endif /* %s */\n", name.c_str());
}

void fprint_include_guard(FILE *f, bool begin)
{
    std::string name = "__HEADERGEN__" + toupper(g_soc_name) + "__" + toupper(g_soc_dev)
        + "__H__";
    fprint_include_guard_ex(f, begin, name);
}

struct define_align_context_t
{
    define_align_context_t():m_max_name(0) {}
    void add(const std::string& name, const std::string& val)
    {
        m_lines.push_back(std::make_pair(name, val));
        m_max_name = std::max(m_max_name, name.size());
    }

    void print(FILE *f)
    {
        std::string define = "#define ";
        size_t align = define.size() + m_max_name + 1;
        align = ((align + 3) / 4) * 4;

        for(size_t i = 0; i < m_lines.size(); i++)
        {
            std::string name = m_lines[i].first;
            name.insert(name.end(), align - define.size() - name.size(), ' ');
            fprintf(f, "%s%s%s\n", define.c_str(), name.c_str(), m_lines[i].second.c_str());
        }
    }

    size_t m_max_name;
    std::vector< std::pair< std::string, std::string > > m_lines;
};

void gen_soc_field(define_align_context_t& ctx, bool multidev, bool multireg, const soc_reg_field_t& field)
{
    std::string prefix = g_soc_dev + "_" + g_soc_reg + "_" + g_soc_field;
    ctx.add("BP_" + prefix, to_str(field.first_bit));
    ctx.add("BM_" + prefix, "0x" + to_hex(field.bitmask()));

    for(size_t i = 0; i < field.value.size(); i++)
        ctx.add("BV_" + prefix + "__" + field.value[i].name, "0x" + to_hex(field.value[i].value));

    ctx.add("BF_" + prefix + "(v)", "(((v) << " + to_str(field.first_bit) + ") & 0x" + to_hex(field.bitmask()) + ")");

    if(field.value.size() > 0)
        ctx.add("BF_" + prefix + "_V(v)", "((BV_" + prefix + "__##v" + " << " + to_str(field.first_bit) + ") & 0x" + to_hex(field.bitmask()) + ")");
}

void gen_soc_reg(FILE *f, bool multidev, const soc_reg_t& reg)
{
    bool multireg = reg.addr.size() > 1;

    static const char *suffix[] = {"", "_SET", "_CLR", "_TOG"};
    bool sct = !!(reg.flags & REG_HAS_SCT);

    fprintf(f, "/**\n");
    fprintf(f, " * Register: HW_%s_%s\n", g_soc_dev.c_str(), g_soc_reg.c_str());
    fprintf(f, " * Address:");
    if(multireg && reg.formula.type == REG_FORMULA_STRING)
    {
        fprintf(f, " %s\n", reg.formula.string.c_str());
    }
    else
    {
        for(size_t i = 0; i < reg.addr.size(); i++)
            fprintf(f, " %#x", reg.addr[i].addr);
        fprintf(f, "\n");
    }
    fprintf(f, " * SCT: %s\n", sct ? "yes" : "no");

    fprintf(f, "*/\n");

    define_align_context_t ctx;

    for(int i = 0; i < (sct ? 4 : 1); i++)
    {
        std::ostringstream name;
        name << "HW_" << g_soc_dev << "_" << g_soc_reg << suffix[i];
        if(multidev || multireg)
        {
            name << "(";
            if(multidev)
                name << "d";
            if(multidev && multireg)
                name << ",";
            if(multireg)
                name << "n";
            name << ")";
        }
        std::ostringstream value;
        value << "(*(volatile unsigned long *)(" << g_soc_dev_regs_base;
        if(multidev)
            value << "(d)";
        value << " + ";
        if(multireg)
        {
            if(reg.formula.type != REG_FORMULA_STRING)
                printf("Warning: register HW_%s_%s has no formula !\n", g_soc_dev.c_str(), g_soc_reg.c_str());
            std::string formula = reg.formula.string.c_str();
            size_t pos = formula.find("n");
            while(pos != std::string::npos)
            {
                formula.replace(pos, 1, "(n)");
                pos = formula.find("n", pos + 2);
            }
            value << formula;
        }
        else
            value << "0x" << std::hex << reg.addr[0].addr;

        if(sct)
            value << " + 0x" << std::hex << (i * 4);
        value << "))";

        ctx.add(name.str(), value.str());
    }

    for(size_t i = 0; i < reg.field.size(); i++)
    {
        g_soc_field = reg.field[i].name;
        gen_soc_field(ctx, multidev, multireg, reg.field[i]);
    }

    ctx.print(f);

    fprintf(f, "\n");
}

void gen_soc_dev_header(const std::string& filename, const xml_ver_t& ver, const soc_dev_t& dev)
{
    /*
    printf("Generate headers for soc %s, dev %s: use file %s\n", g_soc_name.c_str(),
        g_soc_dev.c_str(), filename.c_str());
    */
    FILE *f = fopen(filename.c_str(), "w");
    if(f == NULL)
    {
        printf("Cannot open %s for writing: %m\n", filename.c_str());
        return;
    }
    fprint_copyright(f, ver);
    fprint_include_guard(f, true);

    /* print base */
    fprintf(f, "\n");
    g_soc_dev_regs_base = "REGS_" + g_soc_dev + "_BASE";
    fprintf(f, "#define %s", g_soc_dev_regs_base.c_str());

    if(dev.addr.size() > 1)
        fprintf(f, "(i)");
    fprintf(f, " (");
    
    for(size_t i = 0; i < dev.addr.size() - 1; i++)
        fprintf(f, "(i) == %d ? %#x : ", (int)i + 1, dev.addr[i].addr);
    
    fprintf(f, "%#x)\n", dev.addr[dev.addr.size() - 1].addr);

    fprintf(f, "\n");

    /* print version */
    fprintf(f, "#define REGS_%s_VERSION \"%s\"\n\n", g_soc_dev.c_str(), dev.version.c_str());

    for(size_t i = 0; i < dev.reg.size(); i++)
    {
        g_soc_reg = dev.reg[i].name;
        gen_soc_reg(f, dev.addr.size() > 1, dev.reg[i]);
    }

    fprint_include_guard(f, false);
    fclose(f);
}

void gen_soc_headers(const std::string& prefix, const soc_t& soc)
{
    printf("Generate headers for soc %s: use directory %s\n", soc.desc.c_str(),
        prefix.c_str());
    mkdir(prefix.c_str(), 0770);

    for(size_t i = 0; i < soc.dev.size(); i++)
    {
        g_soc_dev = soc.dev[i].name;
        xml_ver_t ver(soc.name, soc.dev[i].version);
        gen_soc_dev_header(prefix + "/regs-" + tolower(g_soc_dev.c_str()) + ".h", ver, soc.dev[i]);
    }
}

void gen_headers(const std::string& prefix, const std::vector< soc_t >& socs)
{
    for(size_t i = 0; i < socs.size(); i++)
    {
        g_soc_name = socs[i].name;
        gen_soc_headers(prefix + "/" + socs[i].name, socs[i]);
    }
}

typedef std::map< std::string, std::vector< std::pair< size_t, size_t > > > general_dev_list_t;
general_dev_list_t build_general_dev_list(const std::vector< soc_t >& socs)
{
    general_dev_list_t map;
    for(size_t i = 0; i < socs.size(); i++)
    {
        for(size_t j = 0; j < socs[i].dev.size(); j++)
            map[tolower(socs[i].dev[j].name)].push_back(std::make_pair(i,j));
    }
    return map;
}

void gen_select_header(const std::string& filename, const std::string& dev,
    const std::vector< std::string >& socs, const std::vector< xml_ver_t >& ver)
{
    /*
    printf("Generate select header for device %s: write to %s\n", dev.c_str(),
        filename.c_str());
    */
    std::string guard = "__SELECT__" + toupper(dev) + "__H__";
    FILE *f = fopen(filename.c_str(), "w");
    if(f == NULL)
        error("Cannot open file %s\n", filename.c_str());
    fprint_copyright(f, ver);
    fprint_include_guard_ex(f, true, guard);
    fprintf(f, "\n");

    for(size_t i = 0; i < socs.size(); i++)
    {
        fprintf(f, "#define %s_INCLUDE \"%s/regs-%s.h\"\n",
            toupper(socs[i]).c_str(), tolower(socs[i]).c_str(),
            tolower(dev).c_str());
    }
    fprintf(f, "\n#include \"regs-select.h\"\n\n");
    for(size_t i = 0; i < socs.size(); i++)
    {
        fprintf(f, "#undef %s_INCLUDE\n", toupper(socs[i]).c_str());
    }
    fprintf(f, "\n");
    fprint_include_guard_ex(f, false, guard);
    fclose(f);
}

void gen_selectors(const std::string& prefix, const std::vector< soc_t >& socs)
{
    general_dev_list_t map = build_general_dev_list(socs);
    for(general_dev_list_t::iterator it = map.begin(); it != map.end(); ++it)
    {
        std::vector< xml_ver_t > ver;
        std::vector< std::string > names;
        for(size_t i = 0; i < it->second.size(); i++)
        {
            size_t soc_nr = it->second[i].first;
            size_t dev_in_soc_nr = it->second[i].second;
            ver.push_back(std::make_pair(socs[soc_nr].name, socs[soc_nr].dev[dev_in_soc_nr].version));
            names.push_back(socs[soc_nr].name);
        }
        gen_select_header(prefix + "/regs-" + it->first + ".h", it->first, names, ver);
    }
}

void usage()
{
    printf("usage: headergen <desc files...> <output directory>\n");
    exit(1);
}

int main(int argc, char **argv)
{
    if(argc < 3)
        usage();
    std::vector< soc_t > socs;
    for(int i = 1; i < argc - 1; i++)
        if(!soc_desc_parse_xml(argv[i], socs))
        {
            printf("Cannot parse %s\n", argv[i]);
            return 1;
        }
    gen_headers(argv[argc - 1], socs);
    gen_selectors(argv[argc - 1], socs);
    return 0;
}