mirror of
https://github.com/brain-hackers/u-boot-brain
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2a2d91d0d6
At present only some of the fdt functionality is tested. Add more tests to cover the rest of it. Also turn on test coverage, which is now 100% with a small exclusion for a Python 3 feature. Signed-off-by: Simon Glass <sjg@chromium.org>
553 lines
16 KiB
Python
553 lines
16 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
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# Copyright (c) 2012 The Chromium OS Authors.
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#
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"""Tests for the dtb_platdata module
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This includes unit tests for some functions and functional tests for the dtoc
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tool.
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"""
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import collections
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import os
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import struct
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import unittest
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import dtb_platdata
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from dtb_platdata import conv_name_to_c
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from dtb_platdata import get_compat_name
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from dtb_platdata import get_value
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from dtb_platdata import tab_to
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import fdt
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import fdt_util
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import tools
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our_path = os.path.dirname(os.path.realpath(__file__))
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HEADER = '''/*
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* DO NOT MODIFY
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*
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* This file was generated by dtoc from a .dtb (device tree binary) file.
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*/
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#include <stdbool.h>
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#include <linux/libfdt.h>'''
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C_HEADER = '''/*
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* DO NOT MODIFY
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*
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* This file was generated by dtoc from a .dtb (device tree binary) file.
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*/
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#include <common.h>
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#include <dm.h>
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#include <dt-structs.h>
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'''
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def get_dtb_file(dts_fname):
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"""Compile a .dts file to a .dtb
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Args:
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dts_fname: Filename of .dts file in the current directory
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Returns:
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Filename of compiled file in output directory
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"""
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return fdt_util.EnsureCompiled(os.path.join(our_path, dts_fname))
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class TestDtoc(unittest.TestCase):
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"""Tests for dtoc"""
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@classmethod
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def setUpClass(cls):
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tools.PrepareOutputDir(None)
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@classmethod
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def tearDownClass(cls):
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tools._RemoveOutputDir()
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def _WritePythonString(self, fname, data):
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"""Write a string with tabs expanded as done in this Python file
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Args:
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fname: Filename to write to
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data: Raw string to convert
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"""
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data = data.replace('\t', '\\t')
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with open(fname, 'w') as fd:
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fd.write(data)
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def _CheckStrings(self, expected, actual):
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"""Check that a string matches its expected value
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If the strings do not match, they are written to the /tmp directory in
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the same Python format as is used here in the test. This allows for
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easy comparison and update of the tests.
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Args:
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expected: Expected string
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actual: Actual string
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"""
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if expected != actual:
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self._WritePythonString('/tmp/binman.expected', expected)
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self._WritePythonString('/tmp/binman.actual', actual)
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print 'Failures written to /tmp/binman.{expected,actual}'
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self.assertEquals(expected, actual)
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def test_name(self):
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"""Test conversion of device tree names to C identifiers"""
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self.assertEqual('serial_at_0x12', conv_name_to_c('serial@0x12'))
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self.assertEqual('vendor_clock_frequency',
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conv_name_to_c('vendor,clock-frequency'))
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self.assertEqual('rockchip_rk3399_sdhci_5_1',
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conv_name_to_c('rockchip,rk3399-sdhci-5.1'))
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def test_tab_to(self):
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"""Test operation of tab_to() function"""
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self.assertEqual('fred ', tab_to(0, 'fred'))
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self.assertEqual('fred\t', tab_to(1, 'fred'))
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self.assertEqual('fred was here ', tab_to(1, 'fred was here'))
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self.assertEqual('fred was here\t\t', tab_to(3, 'fred was here'))
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self.assertEqual('exactly8 ', tab_to(1, 'exactly8'))
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self.assertEqual('exactly8\t', tab_to(2, 'exactly8'))
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def test_get_value(self):
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"""Test operation of get_value() function"""
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self.assertEqual('0x45',
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get_value(fdt.TYPE_INT, struct.pack('>I', 0x45)))
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self.assertEqual('0x45',
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get_value(fdt.TYPE_BYTE, struct.pack('<I', 0x45)))
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self.assertEqual('0x0',
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get_value(fdt.TYPE_BYTE, struct.pack('>I', 0x45)))
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self.assertEqual('"test"', get_value(fdt.TYPE_STRING, 'test'))
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self.assertEqual('true', get_value(fdt.TYPE_BOOL, None))
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def test_get_compat_name(self):
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"""Test operation of get_compat_name() function"""
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Prop = collections.namedtuple('Prop', ['value'])
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Node = collections.namedtuple('Node', ['props'])
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prop = Prop(['rockchip,rk3399-sdhci-5.1', 'arasan,sdhci-5.1'])
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node = Node({'compatible': prop})
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self.assertEqual(('rockchip_rk3399_sdhci_5_1', ['arasan_sdhci_5_1']),
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get_compat_name(node))
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prop = Prop(['rockchip,rk3399-sdhci-5.1'])
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node = Node({'compatible': prop})
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self.assertEqual(('rockchip_rk3399_sdhci_5_1', []),
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get_compat_name(node))
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prop = Prop(['rockchip,rk3399-sdhci-5.1', 'arasan,sdhci-5.1', 'third'])
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node = Node({'compatible': prop})
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self.assertEqual(('rockchip_rk3399_sdhci_5_1',
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['arasan_sdhci_5_1', 'third']),
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get_compat_name(node))
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def test_empty_file(self):
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"""Test output from a device tree file with no nodes"""
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dtb_file = get_dtb_file('dtoc_test_empty.dts')
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output = tools.GetOutputFilename('output')
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dtb_platdata.run_steps(['struct'], dtb_file, False, output)
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with open(output) as infile:
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lines = infile.read().splitlines()
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self.assertEqual(HEADER.splitlines(), lines)
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dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
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with open(output) as infile:
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lines = infile.read().splitlines()
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self.assertEqual(C_HEADER.splitlines() + [''], lines)
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def test_simple(self):
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"""Test output from some simple nodes with various types of data"""
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dtb_file = get_dtb_file('dtoc_test_simple.dts')
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output = tools.GetOutputFilename('output')
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dtb_platdata.run_steps(['struct'], dtb_file, False, output)
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with open(output) as infile:
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data = infile.read()
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self._CheckStrings(HEADER + '''
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struct dtd_sandbox_i2c_test {
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};
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struct dtd_sandbox_pmic_test {
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\tbool\t\tlow_power;
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\tfdt64_t\t\treg[2];
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};
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struct dtd_sandbox_spl_test {
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\tbool\t\tboolval;
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\tunsigned char\tbytearray[3];
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\tunsigned char\tbyteval;
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\tfdt32_t\t\tintarray[4];
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\tfdt32_t\t\tintval;
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\tunsigned char\tlongbytearray[9];
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\tunsigned char\tnotstring[5];
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\tconst char *\tstringarray[3];
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\tconst char *\tstringval;
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};
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struct dtd_sandbox_spl_test_2 {
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};
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''', data)
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dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
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with open(output) as infile:
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data = infile.read()
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self._CheckStrings(C_HEADER + '''
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static struct dtd_sandbox_spl_test dtv_spl_test = {
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\t.bytearray\t\t= {0x6, 0x0, 0x0},
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\t.byteval\t\t= 0x5,
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\t.intval\t\t\t= 0x1,
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\t.notstring\t\t= {0x20, 0x21, 0x22, 0x10, 0x0},
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\t.longbytearray\t\t= {0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf, 0x10,
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\t\t0x11},
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\t.stringval\t\t= "message",
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\t.boolval\t\t= true,
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\t.intarray\t\t= {0x2, 0x3, 0x4, 0x0},
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\t.stringarray\t\t= {"multi-word", "message", ""},
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};
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U_BOOT_DEVICE(spl_test) = {
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\t.name\t\t= "sandbox_spl_test",
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\t.platdata\t= &dtv_spl_test,
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\t.platdata_size\t= sizeof(dtv_spl_test),
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};
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static struct dtd_sandbox_spl_test dtv_spl_test2 = {
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\t.bytearray\t\t= {0x1, 0x23, 0x34},
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\t.byteval\t\t= 0x8,
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\t.intval\t\t\t= 0x3,
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\t.longbytearray\t\t= {0x9, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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\t\t0x0},
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\t.stringval\t\t= "message2",
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\t.intarray\t\t= {0x5, 0x0, 0x0, 0x0},
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\t.stringarray\t\t= {"another", "multi-word", "message"},
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};
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U_BOOT_DEVICE(spl_test2) = {
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\t.name\t\t= "sandbox_spl_test",
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\t.platdata\t= &dtv_spl_test2,
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\t.platdata_size\t= sizeof(dtv_spl_test2),
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};
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static struct dtd_sandbox_spl_test dtv_spl_test3 = {
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\t.stringarray\t\t= {"one", "", ""},
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};
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U_BOOT_DEVICE(spl_test3) = {
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\t.name\t\t= "sandbox_spl_test",
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\t.platdata\t= &dtv_spl_test3,
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\t.platdata_size\t= sizeof(dtv_spl_test3),
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};
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static struct dtd_sandbox_spl_test_2 dtv_spl_test4 = {
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};
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U_BOOT_DEVICE(spl_test4) = {
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\t.name\t\t= "sandbox_spl_test_2",
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\t.platdata\t= &dtv_spl_test4,
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\t.platdata_size\t= sizeof(dtv_spl_test4),
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};
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static struct dtd_sandbox_i2c_test dtv_i2c_at_0 = {
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};
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U_BOOT_DEVICE(i2c_at_0) = {
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\t.name\t\t= "sandbox_i2c_test",
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\t.platdata\t= &dtv_i2c_at_0,
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\t.platdata_size\t= sizeof(dtv_i2c_at_0),
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};
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static struct dtd_sandbox_pmic_test dtv_pmic_at_9 = {
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\t.low_power\t\t= true,
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\t.reg\t\t\t= {0x9, 0x0},
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};
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U_BOOT_DEVICE(pmic_at_9) = {
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\t.name\t\t= "sandbox_pmic_test",
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\t.platdata\t= &dtv_pmic_at_9,
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\t.platdata_size\t= sizeof(dtv_pmic_at_9),
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};
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''', data)
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def test_phandle(self):
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"""Test output from a node containing a phandle reference"""
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dtb_file = get_dtb_file('dtoc_test_phandle.dts')
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output = tools.GetOutputFilename('output')
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dtb_platdata.run_steps(['struct'], dtb_file, False, output)
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with open(output) as infile:
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data = infile.read()
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self._CheckStrings(HEADER + '''
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struct dtd_source {
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\tstruct phandle_2_arg clocks[4];
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};
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struct dtd_target {
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\tfdt32_t\t\tintval;
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};
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''', data)
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dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
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with open(output) as infile:
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data = infile.read()
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self._CheckStrings(C_HEADER + '''
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static struct dtd_target dtv_phandle_target = {
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\t.intval\t\t\t= 0x0,
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};
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U_BOOT_DEVICE(phandle_target) = {
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\t.name\t\t= "target",
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\t.platdata\t= &dtv_phandle_target,
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\t.platdata_size\t= sizeof(dtv_phandle_target),
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};
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static struct dtd_target dtv_phandle2_target = {
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\t.intval\t\t\t= 0x1,
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};
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U_BOOT_DEVICE(phandle2_target) = {
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\t.name\t\t= "target",
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\t.platdata\t= &dtv_phandle2_target,
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\t.platdata_size\t= sizeof(dtv_phandle2_target),
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};
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static struct dtd_target dtv_phandle3_target = {
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\t.intval\t\t\t= 0x2,
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};
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U_BOOT_DEVICE(phandle3_target) = {
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\t.name\t\t= "target",
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\t.platdata\t= &dtv_phandle3_target,
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\t.platdata_size\t= sizeof(dtv_phandle3_target),
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};
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static struct dtd_source dtv_phandle_source = {
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\t.clocks\t\t\t= {
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\t\t\t{&dtv_phandle_target, {}},
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\t\t\t{&dtv_phandle2_target, {11}},
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\t\t\t{&dtv_phandle3_target, {12, 13}},
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\t\t\t{&dtv_phandle_target, {}},},
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};
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U_BOOT_DEVICE(phandle_source) = {
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\t.name\t\t= "source",
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\t.platdata\t= &dtv_phandle_source,
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\t.platdata_size\t= sizeof(dtv_phandle_source),
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};
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''', data)
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def test_aliases(self):
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"""Test output from a node with multiple compatible strings"""
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dtb_file = get_dtb_file('dtoc_test_aliases.dts')
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output = tools.GetOutputFilename('output')
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dtb_platdata.run_steps(['struct'], dtb_file, False, output)
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with open(output) as infile:
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data = infile.read()
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self._CheckStrings(HEADER + '''
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struct dtd_compat1 {
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\tfdt32_t\t\tintval;
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};
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#define dtd_compat2_1_fred dtd_compat1
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#define dtd_compat3 dtd_compat1
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''', data)
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dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
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with open(output) as infile:
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data = infile.read()
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self._CheckStrings(C_HEADER + '''
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static struct dtd_compat1 dtv_spl_test = {
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\t.intval\t\t\t= 0x1,
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};
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U_BOOT_DEVICE(spl_test) = {
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\t.name\t\t= "compat1",
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\t.platdata\t= &dtv_spl_test,
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\t.platdata_size\t= sizeof(dtv_spl_test),
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};
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''', data)
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def test_addresses64(self):
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"""Test output from a node with a 'reg' property with na=2, ns=2"""
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dtb_file = get_dtb_file('dtoc_test_addr64.dts')
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output = tools.GetOutputFilename('output')
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dtb_platdata.run_steps(['struct'], dtb_file, False, output)
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with open(output) as infile:
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data = infile.read()
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self._CheckStrings(HEADER + '''
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struct dtd_test1 {
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\tfdt64_t\t\treg[2];
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};
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struct dtd_test2 {
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\tfdt64_t\t\treg[2];
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};
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struct dtd_test3 {
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\tfdt64_t\t\treg[4];
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};
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''', data)
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dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
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with open(output) as infile:
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data = infile.read()
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self._CheckStrings(C_HEADER + '''
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static struct dtd_test1 dtv_test1 = {
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\t.reg\t\t\t= {0x1234, 0x5678},
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};
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U_BOOT_DEVICE(test1) = {
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\t.name\t\t= "test1",
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\t.platdata\t= &dtv_test1,
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\t.platdata_size\t= sizeof(dtv_test1),
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};
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static struct dtd_test2 dtv_test2 = {
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\t.reg\t\t\t= {0x1234567890123456, 0x9876543210987654},
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};
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U_BOOT_DEVICE(test2) = {
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\t.name\t\t= "test2",
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\t.platdata\t= &dtv_test2,
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\t.platdata_size\t= sizeof(dtv_test2),
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};
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static struct dtd_test3 dtv_test3 = {
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\t.reg\t\t\t= {0x1234567890123456, 0x9876543210987654, 0x2, 0x3},
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};
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U_BOOT_DEVICE(test3) = {
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\t.name\t\t= "test3",
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\t.platdata\t= &dtv_test3,
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\t.platdata_size\t= sizeof(dtv_test3),
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};
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''', data)
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def test_addresses32(self):
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"""Test output from a node with a 'reg' property with na=1, ns=1"""
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dtb_file = get_dtb_file('dtoc_test_addr32.dts')
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output = tools.GetOutputFilename('output')
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dtb_platdata.run_steps(['struct'], dtb_file, False, output)
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with open(output) as infile:
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data = infile.read()
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self._CheckStrings(HEADER + '''
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struct dtd_test1 {
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\tfdt32_t\t\treg[2];
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};
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struct dtd_test2 {
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\tfdt32_t\t\treg[4];
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};
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''', data)
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dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
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with open(output) as infile:
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data = infile.read()
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self._CheckStrings(C_HEADER + '''
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static struct dtd_test1 dtv_test1 = {
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\t.reg\t\t\t= {0x1234, 0x5678},
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};
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U_BOOT_DEVICE(test1) = {
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\t.name\t\t= "test1",
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\t.platdata\t= &dtv_test1,
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\t.platdata_size\t= sizeof(dtv_test1),
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};
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static struct dtd_test2 dtv_test2 = {
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\t.reg\t\t\t= {0x12345678, 0x98765432, 0x2, 0x3},
|
|
};
|
|
U_BOOT_DEVICE(test2) = {
|
|
\t.name\t\t= "test2",
|
|
\t.platdata\t= &dtv_test2,
|
|
\t.platdata_size\t= sizeof(dtv_test2),
|
|
};
|
|
|
|
''', data)
|
|
|
|
def test_addresses64_32(self):
|
|
"""Test output from a node with a 'reg' property with na=2, ns=1"""
|
|
dtb_file = get_dtb_file('dtoc_test_addr64_32.dts')
|
|
output = tools.GetOutputFilename('output')
|
|
dtb_platdata.run_steps(['struct'], dtb_file, False, output)
|
|
with open(output) as infile:
|
|
data = infile.read()
|
|
self._CheckStrings(HEADER + '''
|
|
struct dtd_test1 {
|
|
\tfdt64_t\t\treg[2];
|
|
};
|
|
struct dtd_test2 {
|
|
\tfdt64_t\t\treg[2];
|
|
};
|
|
struct dtd_test3 {
|
|
\tfdt64_t\t\treg[4];
|
|
};
|
|
''', data)
|
|
|
|
dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
|
|
with open(output) as infile:
|
|
data = infile.read()
|
|
self._CheckStrings(C_HEADER + '''
|
|
static struct dtd_test1 dtv_test1 = {
|
|
\t.reg\t\t\t= {0x123400000000, 0x5678},
|
|
};
|
|
U_BOOT_DEVICE(test1) = {
|
|
\t.name\t\t= "test1",
|
|
\t.platdata\t= &dtv_test1,
|
|
\t.platdata_size\t= sizeof(dtv_test1),
|
|
};
|
|
|
|
static struct dtd_test2 dtv_test2 = {
|
|
\t.reg\t\t\t= {0x1234567890123456, 0x98765432},
|
|
};
|
|
U_BOOT_DEVICE(test2) = {
|
|
\t.name\t\t= "test2",
|
|
\t.platdata\t= &dtv_test2,
|
|
\t.platdata_size\t= sizeof(dtv_test2),
|
|
};
|
|
|
|
static struct dtd_test3 dtv_test3 = {
|
|
\t.reg\t\t\t= {0x1234567890123456, 0x98765432, 0x2, 0x3},
|
|
};
|
|
U_BOOT_DEVICE(test3) = {
|
|
\t.name\t\t= "test3",
|
|
\t.platdata\t= &dtv_test3,
|
|
\t.platdata_size\t= sizeof(dtv_test3),
|
|
};
|
|
|
|
''', data)
|
|
|
|
def test_addresses32_64(self):
|
|
"""Test output from a node with a 'reg' property with na=1, ns=2"""
|
|
dtb_file = get_dtb_file('dtoc_test_addr32_64.dts')
|
|
output = tools.GetOutputFilename('output')
|
|
dtb_platdata.run_steps(['struct'], dtb_file, False, output)
|
|
with open(output) as infile:
|
|
data = infile.read()
|
|
self._CheckStrings(HEADER + '''
|
|
struct dtd_test1 {
|
|
\tfdt64_t\t\treg[2];
|
|
};
|
|
struct dtd_test2 {
|
|
\tfdt64_t\t\treg[2];
|
|
};
|
|
struct dtd_test3 {
|
|
\tfdt64_t\t\treg[4];
|
|
};
|
|
''', data)
|
|
|
|
dtb_platdata.run_steps(['platdata'], dtb_file, False, output)
|
|
with open(output) as infile:
|
|
data = infile.read()
|
|
self._CheckStrings(C_HEADER + '''
|
|
static struct dtd_test1 dtv_test1 = {
|
|
\t.reg\t\t\t= {0x1234, 0x567800000000},
|
|
};
|
|
U_BOOT_DEVICE(test1) = {
|
|
\t.name\t\t= "test1",
|
|
\t.platdata\t= &dtv_test1,
|
|
\t.platdata_size\t= sizeof(dtv_test1),
|
|
};
|
|
|
|
static struct dtd_test2 dtv_test2 = {
|
|
\t.reg\t\t\t= {0x12345678, 0x9876543210987654},
|
|
};
|
|
U_BOOT_DEVICE(test2) = {
|
|
\t.name\t\t= "test2",
|
|
\t.platdata\t= &dtv_test2,
|
|
\t.platdata_size\t= sizeof(dtv_test2),
|
|
};
|
|
|
|
static struct dtd_test3 dtv_test3 = {
|
|
\t.reg\t\t\t= {0x12345678, 0x9876543210987654, 0x2, 0x3},
|
|
};
|
|
U_BOOT_DEVICE(test3) = {
|
|
\t.name\t\t= "test3",
|
|
\t.platdata\t= &dtv_test3,
|
|
\t.platdata_size\t= sizeof(dtv_test3),
|
|
};
|
|
|
|
''', data)
|