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1// SPDX-License-Identifier: GPL-2.0-only2//3// device-attribute-test.c - An application of Kunit to test implementation for device attributes.4//5// Copyright (c) 2023 Takashi Sakamoto6//7// This file can not be built independently since it is intentionally included in core-device.c.8 9#include <kunit/test.h>10 11// Configuration ROM for AV/C Devices 1.0 (Dec. 12, 2000, 1394 Trading Association)12// Annex C:Configuration ROM example(informative)13// C.1 Simple AV/C device14//15// Copied from the documentation.16static const u32 simple_avc_config_rom[] = {17 0x0404eabf,18 0x31333934,19 0xe0646102,20 0xffffffff,21 0xffffffff,22 0x00063287, // root directory.23 0x03ffffff,24 0x8100000a,25 0x17ffffff,26 0x8100000e,27 0x0c0083c0,28 0xd1000001,29 0x0004442d, // unit 0 directory.30 0x1200a02d,31 0x13010001,32 0x17ffffff,33 0x81000007,34 0x0005c915, // leaf for textual descriptor.35 0x00000000,36 0x00000000,37 0x56656e64,38 0x6f72204e,39 0x616d6500,40 0x00057f16, // leaf for textual descriptor.41 0x00000000,42 0x00000000,43 0x4d6f6465,44 0x6c204e61,45 0x6d650000,46};47 48// Ibid.49// Annex A:Consideration for configuration ROM reader design (informative)50// A.1 Vendor directory51//52// Written by hand.53static const u32 legacy_avc_config_rom[] = {54 0x04199fe7,55 0x31333934,56 0xe0644000,57 0x00112233,58 0x44556677,59 0x0005dace, // root directory.60 0x03012345,61 0x0c0083c0,62 0x8d000009,63 0xd1000002,64 0xc3000004,65 0x0002e107, // unit 0 directory.66 0x12abcdef,67 0x13543210,68 0x0002cb73, // vendor directory.69 0x17fedcba,70 0x81000004,71 0x00026dc1, // leaf for EUI-64.72 0x00112233,73 0x44556677,74 0x00050e84, // leaf for textual descriptor.75 0x00000000,76 0x00000000,77 0x41424344,78 0x45464748,79 0x494a0000,80};81 82static void device_attr_simple_avc(struct kunit *test)83{84 static const struct fw_device node = {85 .device = {86 .type = &fw_device_type,87 },88 .config_rom = simple_avc_config_rom,89 .config_rom_length = sizeof(simple_avc_config_rom),90 };91 static const struct fw_unit unit0 = {92 .device = {93 .type = &fw_unit_type,94 .parent = (struct device *)&node.device,95 },96 .directory = &simple_avc_config_rom[12],97 };98 struct device *node_dev = (struct device *)&node.device;99 struct device *unit0_dev = (struct device *)&unit0.device;100 static const int unit0_expected_ids[] = {0x00ffffff, 0x00ffffff, 0x0000a02d, 0x00010001};101 char *buf = kunit_kzalloc(test, PAGE_SIZE, GFP_KERNEL);102 int ids[4] = {0, 0, 0, 0};103 104 // Ensure associations for node and unit devices.105 106 KUNIT_ASSERT_TRUE(test, is_fw_device(node_dev));107 KUNIT_ASSERT_FALSE(test, is_fw_unit(node_dev));108 KUNIT_ASSERT_PTR_EQ(test, fw_device(node_dev), &node);109 110 KUNIT_ASSERT_FALSE(test, is_fw_device(unit0_dev));111 KUNIT_ASSERT_TRUE(test, is_fw_unit(unit0_dev));112 KUNIT_ASSERT_PTR_EQ(test, fw_parent_device((&unit0)), &node);113 KUNIT_ASSERT_PTR_EQ(test, fw_unit(unit0_dev), &unit0);114 115 // For entries in root directory.116 117 // Vendor immediate entry is found.118 KUNIT_EXPECT_GT(test, show_immediate(node_dev, &config_rom_attributes[0].attr, buf), 0);119 KUNIT_EXPECT_STREQ(test, buf, "0xffffff\n");120 121 // Model immediate entry is found.122 KUNIT_EXPECT_GT(test, show_immediate(node_dev, &config_rom_attributes[4].attr, buf), 0);123 KUNIT_EXPECT_STREQ(test, buf, "0xffffff\n");124 125 // Descriptor leaf entry for vendor is found.126 KUNIT_EXPECT_GT(test, show_text_leaf(node_dev, &config_rom_attributes[5].attr, buf), 0);127 KUNIT_EXPECT_STREQ(test, buf, "Vendor Name\n");128 129 // Descriptor leaf entry for model is found.130 KUNIT_EXPECT_GT(test, show_text_leaf(node_dev, &config_rom_attributes[6].attr, buf), 0);131 KUNIT_EXPECT_STREQ(test, buf, "Model Name\n");132 133 // For entries in unit 0 directory.134 135 // Vendor immediate entry is not found.136 KUNIT_EXPECT_LT(test, show_immediate(unit0_dev, &config_rom_attributes[0].attr, buf), 0);137 138 // Model immediate entry is found.139 KUNIT_EXPECT_GT(test, show_immediate(unit0_dev, &config_rom_attributes[4].attr, buf), 0);140 KUNIT_EXPECT_STREQ(test, buf, "0xffffff\n");141 142 // Descriptor leaf entry for vendor is not found.143 KUNIT_EXPECT_LT(test, show_text_leaf(unit0_dev, &config_rom_attributes[5].attr, buf), 0);144 145 // Descriptor leaf entry for model is found.146 KUNIT_EXPECT_GT(test, show_text_leaf(unit0_dev, &config_rom_attributes[6].attr, buf), 0);147 KUNIT_EXPECT_STREQ(test, buf, "Model Name\n");148 149 // Specifier_ID immediate entry is found.150 KUNIT_EXPECT_GT(test, show_immediate(unit0_dev, &config_rom_attributes[2].attr, buf), 0);151 KUNIT_EXPECT_STREQ(test, buf, "0x00a02d\n");152 153 // Version immediate entry is found.154 KUNIT_EXPECT_GT(test, show_immediate(unit0_dev, &config_rom_attributes[3].attr, buf), 0);155 KUNIT_EXPECT_STREQ(test, buf, "0x010001\n");156 157 kunit_kfree(test, buf);158 159 get_modalias_ids(&unit0, ids);160 KUNIT_EXPECT_MEMEQ(test, ids, unit0_expected_ids, sizeof(ids));161}162 163static void device_attr_legacy_avc(struct kunit *test)164{165 static const struct fw_device node = {166 .device = {167 .type = &fw_device_type,168 },169 .config_rom = legacy_avc_config_rom,170 .config_rom_length = sizeof(legacy_avc_config_rom),171 };172 static const struct fw_unit unit0 = {173 .device = {174 .type = &fw_unit_type,175 .parent = (struct device *)&node.device,176 },177 .directory = &legacy_avc_config_rom[11],178 };179 struct device *node_dev = (struct device *)&node.device;180 struct device *unit0_dev = (struct device *)&unit0.device;181 static const int unit0_expected_ids[] = {0x00012345, 0x00fedcba, 0x00abcdef, 0x00543210};182 char *buf = kunit_kzalloc(test, PAGE_SIZE, GFP_KERNEL);183 int ids[4] = {0, 0, 0, 0};184 185 // Ensure associations for node and unit devices.186 187 KUNIT_ASSERT_TRUE(test, is_fw_device(node_dev));188 KUNIT_ASSERT_FALSE(test, is_fw_unit(node_dev));189 KUNIT_ASSERT_PTR_EQ(test, fw_device((node_dev)), &node);190 191 KUNIT_ASSERT_FALSE(test, is_fw_device(unit0_dev));192 KUNIT_ASSERT_TRUE(test, is_fw_unit(unit0_dev));193 KUNIT_ASSERT_PTR_EQ(test, fw_parent_device((&unit0)), &node);194 KUNIT_ASSERT_PTR_EQ(test, fw_unit(unit0_dev), &unit0);195 196 // For entries in root directory.197 198 // Vendor immediate entry is found.199 KUNIT_EXPECT_GT(test, show_immediate(node_dev, &config_rom_attributes[0].attr, buf), 0);200 KUNIT_EXPECT_STREQ(test, buf, "0x012345\n");201 202 // Model immediate entry is found.203 KUNIT_EXPECT_GT(test, show_immediate(node_dev, &config_rom_attributes[4].attr, buf), 0);204 KUNIT_EXPECT_STREQ(test, buf, "0xfedcba\n");205 206 // Descriptor leaf entry for vendor is not found.207 KUNIT_EXPECT_LT(test, show_text_leaf(node_dev, &config_rom_attributes[5].attr, buf), 0);208 209 // Descriptor leaf entry for model is found.210 KUNIT_EXPECT_GT(test, show_text_leaf(node_dev, &config_rom_attributes[6].attr, buf), 0);211 KUNIT_EXPECT_STREQ(test, buf, "ABCDEFGHIJ\n");212 213 // For entries in unit 0 directory.214 215 // Vendor immediate entry is not found.216 KUNIT_EXPECT_LT(test, show_immediate(unit0_dev, &config_rom_attributes[0].attr, buf), 0);217 218 // Model immediate entry is not found.219 KUNIT_EXPECT_LT(test, show_immediate(unit0_dev, &config_rom_attributes[4].attr, buf), 0);220 221 // Descriptor leaf entry for vendor is not found.222 KUNIT_EXPECT_LT(test, show_text_leaf(unit0_dev, &config_rom_attributes[5].attr, buf), 0);223 224 // Descriptor leaf entry for model is not found.225 KUNIT_EXPECT_LT(test, show_text_leaf(unit0_dev, &config_rom_attributes[6].attr, buf), 0);226 227 // Specifier_ID immediate entry is found.228 KUNIT_EXPECT_GT(test, show_immediate(unit0_dev, &config_rom_attributes[2].attr, buf), 0);229 KUNIT_EXPECT_STREQ(test, buf, "0xabcdef\n");230 231 // Version immediate entry is found.232 KUNIT_EXPECT_GT(test, show_immediate(unit0_dev, &config_rom_attributes[3].attr, buf), 0);233 KUNIT_EXPECT_STREQ(test, buf, "0x543210\n");234 235 kunit_kfree(test, buf);236 237 get_modalias_ids(&unit0, ids);238 KUNIT_EXPECT_MEMEQ(test, ids, unit0_expected_ids, sizeof(ids));239}240 241static struct kunit_case device_attr_test_cases[] = {242 KUNIT_CASE(device_attr_simple_avc),243 KUNIT_CASE(device_attr_legacy_avc),244 {}245};246 247static struct kunit_suite device_attr_test_suite = {248 .name = "firewire-device-attribute",249 .test_cases = device_attr_test_cases,250};251kunit_test_suite(device_attr_test_suite);252