tools/dtoc/test_dtoc.py

   1 #
   2 # Copyright (c) 2012 The Chromium OS Authors.
   3 #
   4 # SPDX-License-Identifier:      GPL-2.0+
   5 #
   6
   7 """Tests for the dtb_platdata module
   8
   9 This includes unit tests for some functions and functional tests for
  10 """
  11
  12 import collections
  13 import os
  14 import struct
  15 import unittest
  16
  17 import dtb_platdata
  18 from dtb_platdata import conv_name_to_c
  19 from dtb_platdata import get_compat_name
  20 from dtb_platdata import get_value
  21 from dtb_platdata import tab_to
  22 import fdt
  23 import fdt_util
  24 import tools
  25
  26 our_path = os.path.dirname(os.path.realpath(__file__))
  27
  28
  29 def get_dtb_file(dts_fname):
  30     """Compile a .dts file to a .dtb
  31
  32     Args:
  33         dts_fname: Filename of .dts file in the current directory
  34
  35     Returns:
  36         Filename of compiled file in output directory
  37     """
  38     return fdt_util.EnsureCompiled(os.path.join(our_path, dts_fname))
  39
  40
  41 class TestDtoc(unittest.TestCase):
  42     """Tests for dtoc"""
  43     @classmethod
  44     def setUpClass(cls):
  45         tools.PrepareOutputDir(None)
  46
  47     @classmethod
  48     def tearDownClass(cls):
  49         tools._RemoveOutputDir()
  50
  51     def test_name(self):
  52         """Test conversion of device tree names to C identifiers"""
  53         self.assertEqual('serial_at_0x12', conv_name_to_c('serial@0x12'))
  54         self.assertEqual('vendor_clock_frequency',
  55                          conv_name_to_c('vendor,clock-frequency'))
  56         self.assertEqual('rockchip_rk3399_sdhci_5_1',
  57                          conv_name_to_c('rockchip,rk3399-sdhci-5.1'))
  58
  59     def test_tab_to(self):
  60         """Test operation of tab_to() function"""
  61         self.assertEqual('fred ', tab_to(0, 'fred'))
  62         self.assertEqual('fred\t', tab_to(1, 'fred'))
  63         self.assertEqual('fred was here ', tab_to(1, 'fred was here'))
  64         self.assertEqual('fred was here\t\t', tab_to(3, 'fred was here'))
  65         self.assertEqual('exactly8 ', tab_to(1, 'exactly8'))
  66         self.assertEqual('exactly8\t', tab_to(2, 'exactly8'))
  67
  68     def test_get_value(self):
  69         """Test operation of get_value() function"""
  70         self.assertEqual('0x45',
  71                          get_value(fdt.TYPE_INT, struct.pack('>I', 0x45)))
  72         self.assertEqual('0x45',
  73                          get_value(fdt.TYPE_BYTE, struct.pack('<I', 0x45)))
  74         self.assertEqual('0x0',
  75                          get_value(fdt.TYPE_BYTE, struct.pack('>I', 0x45)))
  76         self.assertEqual('"test"', get_value(fdt.TYPE_STRING, 'test'))
  77         self.assertEqual('true', get_value(fdt.TYPE_BOOL, None))
  78
  79     def test_get_compat_name(self):
  80         """Test operation of get_compat_name() function"""
  81         Prop = collections.namedtuple('Prop', ['value'])
  82         Node = collections.namedtuple('Node', ['props'])
  83
  84         prop = Prop(['rockchip,rk3399-sdhci-5.1', 'arasan,sdhci-5.1'])
  85         node = Node({'compatible': prop})
  86         self.assertEqual(('rockchip_rk3399_sdhci_5_1', ['arasan_sdhci_5_1']),
  87                          get_compat_name(node))
  88
  89         prop = Prop(['rockchip,rk3399-sdhci-5.1'])
  90         node = Node({'compatible': prop})
  91         self.assertEqual(('rockchip_rk3399_sdhci_5_1', []),
  92                          get_compat_name(node))
  93
  94         prop = Prop(['rockchip,rk3399-sdhci-5.1', 'arasan,sdhci-5.1', 'third'])
  95         node = Node({'compatible': prop})
  96         self.assertEqual(('rockchip_rk3399_sdhci_5_1',
  97                           ['arasan_sdhci_5_1', 'third']),
  98                          get_compat_name(node))
  99
 100     def test_empty_file(self):
 101         """Test output from a device tree file with no nodes"""
 102         dtb_file = get_dtb_file('dtoc_test_empty.dts')
 103         output = tools.GetOutputFilename('output')
 104         dtb_platdata.run_steps(['struct'], dtb_file, False, output)
 105         with open(output) as infile:
 106             lines = infile.read().splitlines()
 107         self.assertEqual(['#include <stdbool.h>', '#include <libfdt.h>'], lines)
 108
 109         dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
 110         with open(output) as infile:
 111             lines = infile.read().splitlines()
 112         self.assertEqual(['#include <common.h>', '#include <dm.h>',
 113                           '#include <dt-structs.h>', ''], lines)
 114
 115     def test_simple(self):
 116         """Test output from some simple nodes with various types of data"""
 117         dtb_file = get_dtb_file('dtoc_test_simple.dts')
 118         output = tools.GetOutputFilename('output')
 119         dtb_platdata.run_steps(['struct'], dtb_file, False, output)
 120         with open(output) as infile:
 121             data = infile.read()
 122         self.assertEqual('''#include <stdbool.h>
 123 #include <libfdt.h>
 124 struct dtd_sandbox_i2c_test {
 125 };
 126 struct dtd_sandbox_pmic_test {
 127 \tbool\t\tlow_power;
 128 \tfdt64_t\t\treg[2];
 129 };
 130 struct dtd_sandbox_spl_test {
 131 \tbool\t\tboolval;
 132 \tunsigned char\tbytearray[3];
 133 \tunsigned char\tbyteval;
 134 \tfdt32_t\t\tintarray[4];
 135 \tfdt32_t\t\tintval;
 136 \tunsigned char\tlongbytearray[9];
 137 \tconst char *\tstringarray[3];
 138 \tconst char *\tstringval;
 139 };
 140 struct dtd_sandbox_spl_test_2 {
 141 };
 142 ''', data)
 143
 144         dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
 145         with open(output) as infile:
 146             data = infile.read()
 147         self.assertEqual('''#include <common.h>
 148 #include <dm.h>
 149 #include <dt-structs.h>
 150
 151 static struct dtd_sandbox_spl_test dtv_spl_test = {
 152 \t.bytearray\t\t= {0x6, 0x0, 0x0},
 153 \t.byteval\t\t= 0x5,
 154 \t.intval\t\t\t= 0x1,
 155 \t.longbytearray\t\t= {0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf, 0x10,
 156 \t\t0x11},
 157 \t.stringval\t\t= "message",
 158 \t.boolval\t\t= true,
 159 \t.intarray\t\t= {0x2, 0x3, 0x4, 0x0},
 160 \t.stringarray\t\t= {"multi-word", "message", ""},
 161 };
 162 U_BOOT_DEVICE(spl_test) = {
 163 \t.name\t\t= "sandbox_spl_test",
 164 \t.platdata\t= &dtv_spl_test,
 165 \t.platdata_size\t= sizeof(dtv_spl_test),
 166 };
 167
 168 static struct dtd_sandbox_spl_test dtv_spl_test2 = {
 169 \t.bytearray\t\t= {0x1, 0x23, 0x34},
 170 \t.byteval\t\t= 0x8,
 171 \t.intval\t\t\t= 0x3,
 172 \t.longbytearray\t\t= {0x9, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
 173 \t\t0x0},
 174 \t.stringval\t\t= "message2",
 175 \t.intarray\t\t= {0x5, 0x0, 0x0, 0x0},
 176 \t.stringarray\t\t= {"another", "multi-word", "message"},
 177 };
 178 U_BOOT_DEVICE(spl_test2) = {
 179 \t.name\t\t= "sandbox_spl_test",
 180 \t.platdata\t= &dtv_spl_test2,
 181 \t.platdata_size\t= sizeof(dtv_spl_test2),
 182 };
 183
 184 static struct dtd_sandbox_spl_test dtv_spl_test3 = {
 185 \t.stringarray\t\t= {"one", "", ""},
 186 };
 187 U_BOOT_DEVICE(spl_test3) = {
 188 \t.name\t\t= "sandbox_spl_test",
 189 \t.platdata\t= &dtv_spl_test3,
 190 \t.platdata_size\t= sizeof(dtv_spl_test3),
 191 };
 192
 193 static struct dtd_sandbox_spl_test_2 dtv_spl_test4 = {
 194 };
 195 U_BOOT_DEVICE(spl_test4) = {
 196 \t.name\t\t= "sandbox_spl_test_2",
 197 \t.platdata\t= &dtv_spl_test4,
 198 \t.platdata_size\t= sizeof(dtv_spl_test4),
 199 };
 200
 201 static struct dtd_sandbox_i2c_test dtv_i2c_at_0 = {
 202 };
 203 U_BOOT_DEVICE(i2c_at_0) = {
 204 \t.name\t\t= "sandbox_i2c_test",
 205 \t.platdata\t= &dtv_i2c_at_0,
 206 \t.platdata_size\t= sizeof(dtv_i2c_at_0),
 207 };
 208
 209 static struct dtd_sandbox_pmic_test dtv_pmic_at_9 = {
 210 \t.low_power\t\t= true,
 211 \t.reg\t\t\t= {0x9, 0x0},
 212 };
 213 U_BOOT_DEVICE(pmic_at_9) = {
 214 \t.name\t\t= "sandbox_pmic_test",
 215 \t.platdata\t= &dtv_pmic_at_9,
 216 \t.platdata_size\t= sizeof(dtv_pmic_at_9),
 217 };
 218
 219 ''', data)
 220
 221     def test_phandle(self):
 222         """Test output from a node containing a phandle reference"""
 223         dtb_file = get_dtb_file('dtoc_test_phandle.dts')
 224         output = tools.GetOutputFilename('output')
 225         dtb_platdata.run_steps(['struct'], dtb_file, False, output)
 226         with open(output) as infile:
 227             data = infile.read()
 228         self.assertEqual('''#include <stdbool.h>
 229 #include <libfdt.h>
 230 struct dtd_source {
 231 \tstruct phandle_1_arg clocks[1];
 232 };
 233 struct dtd_target {
 234 \tfdt32_t\t\tintval;
 235 };
 236 ''', data)
 237
 238         dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
 239         with open(output) as infile:
 240             data = infile.read()
 241         self.assertEqual('''#include <common.h>
 242 #include <dm.h>
 243 #include <dt-structs.h>
 244
 245 static struct dtd_target dtv_phandle_target = {
 246 \t.intval\t\t\t= 0x1,
 247 };
 248 U_BOOT_DEVICE(phandle_target) = {
 249 \t.name\t\t= "target",
 250 \t.platdata\t= &dtv_phandle_target,
 251 \t.platdata_size\t= sizeof(dtv_phandle_target),
 252 };
 253
 254 static struct dtd_source dtv_phandle_source = {
 255 \t.clocks\t\t\t= {
 256 \t\t{&dtv_phandle_target, {1}},},
 257 };
 258 U_BOOT_DEVICE(phandle_source) = {
 259 \t.name\t\t= "source",
 260 \t.platdata\t= &dtv_phandle_source,
 261 \t.platdata_size\t= sizeof(dtv_phandle_source),
 262 };
 263
 264 ''', data)
 265
 266     def test_aliases(self):
 267         """Test output from a node with multiple compatible strings"""
 268         dtb_file = get_dtb_file('dtoc_test_aliases.dts')
 269         output = tools.GetOutputFilename('output')
 270         dtb_platdata.run_steps(['struct'], dtb_file, False, output)
 271         with open(output) as infile:
 272             data = infile.read()
 273         self.assertEqual('''#include <stdbool.h>
 274 #include <libfdt.h>
 275 struct dtd_compat1 {
 276 \tfdt32_t\t\tintval;
 277 };
 278 #define dtd_compat2_1_fred dtd_compat1
 279 #define dtd_compat3 dtd_compat1
 280 ''', data)
 281
 282         dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
 283         with open(output) as infile:
 284             data = infile.read()
 285         self.assertEqual('''#include <common.h>
 286 #include <dm.h>
 287 #include <dt-structs.h>
 288
 289 static struct dtd_compat1 dtv_spl_test = {
 290 \t.intval\t\t\t= 0x1,
 291 };
 292 U_BOOT_DEVICE(spl_test) = {
 293 \t.name\t\t= "compat1",
 294 \t.platdata\t= &dtv_spl_test,
 295 \t.platdata_size\t= sizeof(dtv_spl_test),
 296 };
 297
 298 ''', data)
 299
 300     def test_addresses64(self):
 301         """Test output from a node with a 'reg' property with na=2, ns=2"""
 302         dtb_file = get_dtb_file('dtoc_test_addr64.dts')
 303         output = tools.GetOutputFilename('output')
 304         dtb_platdata.run_steps(['struct'], dtb_file, False, output)
 305         with open(output) as infile:
 306             data = infile.read()
 307         self.assertEqual('''#include <stdbool.h>
 308 #include <libfdt.h>
 309 struct dtd_test1 {
 310 \tfdt64_t\t\treg[2];
 311 };
 312 struct dtd_test2 {
 313 \tfdt64_t\t\treg[2];
 314 };
 315 struct dtd_test3 {
 316 \tfdt64_t\t\treg[4];
 317 };
 318 ''', data)
 319
 320         dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
 321         with open(output) as infile:
 322             data = infile.read()
 323         self.assertEqual('''#include <common.h>
 324 #include <dm.h>
 325 #include <dt-structs.h>
 326
 327 static struct dtd_test1 dtv_test1 = {
 328 \t.reg\t\t\t= {0x1234, 0x5678},
 329 };
 330 U_BOOT_DEVICE(test1) = {
 331 \t.name\t\t= "test1",
 332 \t.platdata\t= &dtv_test1,
 333 \t.platdata_size\t= sizeof(dtv_test1),
 334 };
 335
 336 static struct dtd_test2 dtv_test2 = {
 337 \t.reg\t\t\t= {0x1234567890123456, 0x9876543210987654},
 338 };
 339 U_BOOT_DEVICE(test2) = {
 340 \t.name\t\t= "test2",
 341 \t.platdata\t= &dtv_test2,
 342 \t.platdata_size\t= sizeof(dtv_test2),
 343 };
 344
 345 static struct dtd_test3 dtv_test3 = {
 346 \t.reg\t\t\t= {0x1234567890123456, 0x9876543210987654, 0x2, 0x3},
 347 };
 348 U_BOOT_DEVICE(test3) = {
 349 \t.name\t\t= "test3",
 350 \t.platdata\t= &dtv_test3,
 351 \t.platdata_size\t= sizeof(dtv_test3),
 352 };
 353
 354 ''', data)
 355
 356     def test_addresses32(self):
 357         """Test output from a node with a 'reg' property with na=1, ns=1"""
 358         dtb_file = get_dtb_file('dtoc_test_addr32.dts')
 359         output = tools.GetOutputFilename('output')
 360         dtb_platdata.run_steps(['struct'], dtb_file, False, output)
 361         with open(output) as infile:
 362             data = infile.read()
 363         self.assertEqual('''#include <stdbool.h>
 364 #include <libfdt.h>
 365 struct dtd_test1 {
 366 \tfdt32_t\t\treg[2];
 367 };
 368 struct dtd_test2 {
 369 \tfdt32_t\t\treg[4];
 370 };
 371 ''', data)
 372
 373         dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
 374         with open(output) as infile:
 375             data = infile.read()
 376         self.assertEqual('''#include <common.h>
 377 #include <dm.h>
 378 #include <dt-structs.h>
 379
 380 static struct dtd_test1 dtv_test1 = {
 381 \t.reg\t\t\t= {0x1234, 0x5678},
 382 };
 383 U_BOOT_DEVICE(test1) = {
 384 \t.name\t\t= "test1",
 385 \t.platdata\t= &dtv_test1,
 386 \t.platdata_size\t= sizeof(dtv_test1),
 387 };
 388
 389 static struct dtd_test2 dtv_test2 = {
 390 \t.reg\t\t\t= {0x12345678, 0x98765432, 0x2, 0x3},
 391 };
 392 U_BOOT_DEVICE(test2) = {
 393 \t.name\t\t= "test2",
 394 \t.platdata\t= &dtv_test2,
 395 \t.platdata_size\t= sizeof(dtv_test2),
 396 };
 397
 398 ''', data)
 399
 400     def test_addresses64_32(self):
 401         """Test output from a node with a 'reg' property with na=2, ns=1"""
 402         dtb_file = get_dtb_file('dtoc_test_addr64_32.dts')
 403         output = tools.GetOutputFilename('output')
 404         dtb_platdata.run_steps(['struct'], dtb_file, False, output)
 405         with open(output) as infile:
 406             data = infile.read()
 407         self.assertEqual('''#include <stdbool.h>
 408 #include <libfdt.h>
 409 struct dtd_test1 {
 410 \tfdt64_t\t\treg[2];
 411 };
 412 struct dtd_test2 {
 413 \tfdt64_t\t\treg[2];
 414 };
 415 struct dtd_test3 {
 416 \tfdt64_t\t\treg[4];
 417 };
 418 ''', data)
 419
 420         dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
 421         with open(output) as infile:
 422             data = infile.read()
 423         self.assertEqual('''#include <common.h>
 424 #include <dm.h>
 425 #include <dt-structs.h>
 426
 427 static struct dtd_test1 dtv_test1 = {
 428 \t.reg\t\t\t= {0x123400000000, 0x5678},
 429 };
 430 U_BOOT_DEVICE(test1) = {
 431 \t.name\t\t= "test1",
 432 \t.platdata\t= &dtv_test1,
 433 \t.platdata_size\t= sizeof(dtv_test1),
 434 };
 435
 436 static struct dtd_test2 dtv_test2 = {
 437 \t.reg\t\t\t= {0x1234567890123456, 0x98765432},
 438 };
 439 U_BOOT_DEVICE(test2) = {
 440 \t.name\t\t= "test2",
 441 \t.platdata\t= &dtv_test2,
 442 \t.platdata_size\t= sizeof(dtv_test2),
 443 };
 444
 445 static struct dtd_test3 dtv_test3 = {
 446 \t.reg\t\t\t= {0x1234567890123456, 0x98765432, 0x2, 0x3},
 447 };
 448 U_BOOT_DEVICE(test3) = {
 449 \t.name\t\t= "test3",
 450 \t.platdata\t= &dtv_test3,
 451 \t.platdata_size\t= sizeof(dtv_test3),
 452 };
 453
 454 ''', data)
 455
 456     def test_addresses32_64(self):
 457         """Test output from a node with a 'reg' property with na=1, ns=2"""
 458         dtb_file = get_dtb_file('dtoc_test_addr32_64.dts')
 459         output = tools.GetOutputFilename('output')
 460         dtb_platdata.run_steps(['struct'], dtb_file, False, output)
 461         with open(output) as infile:
 462             data = infile.read()
 463         self.assertEqual('''#include <stdbool.h>
 464 #include <libfdt.h>
 465 struct dtd_test1 {
 466 \tfdt64_t\t\treg[2];
 467 };
 468 struct dtd_test2 {
 469 \tfdt64_t\t\treg[2];
 470 };
 471 struct dtd_test3 {
 472 \tfdt64_t\t\treg[4];
 473 };
 474 ''', data)
 475
 476         dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
 477         with open(output) as infile:
 478             data = infile.read()
 479         self.assertEqual('''#include <common.h>
 480 #include <dm.h>
 481 #include <dt-structs.h>
 482
 483 static struct dtd_test1 dtv_test1 = {
 484 \t.reg\t\t\t= {0x1234, 0x567800000000},
 485 };
 486 U_BOOT_DEVICE(test1) = {
 487 \t.name\t\t= "test1",
 488 \t.platdata\t= &dtv_test1,
 489 \t.platdata_size\t= sizeof(dtv_test1),
 490 };
 491
 492 static struct dtd_test2 dtv_test2 = {
 493 \t.reg\t\t\t= {0x12345678, 0x9876543210987654},
 494 };
 495 U_BOOT_DEVICE(test2) = {
 496 \t.name\t\t= "test2",
 497 \t.platdata\t= &dtv_test2,
 498 \t.platdata_size\t= sizeof(dtv_test2),
 499 };
 500
 501 static struct dtd_test3 dtv_test3 = {
 502 \t.reg\t\t\t= {0x12345678, 0x9876543210987654, 0x2, 0x3},
 503 };
 504 U_BOOT_DEVICE(test3) = {
 505 \t.name\t\t= "test3",
 506 \t.platdata\t= &dtv_test3,
 507 \t.platdata_size\t= sizeof(dtv_test3),
 508 };
 509
 510 ''', data)