252 lines
7.8 KiB
C
252 lines
7.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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//
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// device-attribute-test.c - An application of Kunit to test implementation for device attributes.
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//
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// Copyright (c) 2023 Takashi Sakamoto
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//
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// This file can not be built independently since it is intentionally included in core-device.c.
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#include <kunit/test.h>
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// Configuration ROM for AV/C Devices 1.0 (Dec. 12, 2000, 1394 Trading Association)
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// Annex C:Configuration ROM example(informative)
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// C.1 Simple AV/C device
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//
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// Copied from the documentation.
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static const u32 simple_avc_config_rom[] = {
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0x0404eabf,
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0x31333934,
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0xe0646102,
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0xffffffff,
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0xffffffff,
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0x00063287, // root directory.
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0x03ffffff,
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0x8100000a,
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0x17ffffff,
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0x8100000e,
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0x0c0083c0,
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0xd1000001,
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0x0004442d, // unit 0 directory.
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0x1200a02d,
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0x13010001,
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0x17ffffff,
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0x81000007,
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0x0005c915, // leaf for textual descriptor.
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0x00000000,
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0x00000000,
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0x56656e64,
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0x6f72204e,
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0x616d6500,
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0x00057f16, // leaf for textual descriptor.
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0x00000000,
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0x00000000,
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0x4d6f6465,
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0x6c204e61,
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0x6d650000,
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};
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// Ibid.
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// Annex A:Consideration for configuration ROM reader design (informative)
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// A.1 Vendor directory
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//
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// Written by hand.
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static const u32 legacy_avc_config_rom[] = {
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0x04199fe7,
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0x31333934,
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0xe0644000,
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0x00112233,
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0x44556677,
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0x0005dace, // root directory.
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0x03012345,
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0x0c0083c0,
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0x8d000009,
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0xd1000002,
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0xc3000004,
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0x0002e107, // unit 0 directory.
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0x12abcdef,
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0x13543210,
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0x0002cb73, // vendor directory.
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0x17fedcba,
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0x81000004,
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0x00026dc1, // leaf for EUI-64.
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0x00112233,
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0x44556677,
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0x00050e84, // leaf for textual descriptor.
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0x00000000,
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0x00000000,
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0x41424344,
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0x45464748,
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0x494a0000,
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};
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static void device_attr_simple_avc(struct kunit *test)
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{
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static const struct fw_device node = {
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.device = {
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.type = &fw_device_type,
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},
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.config_rom = simple_avc_config_rom,
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.config_rom_length = sizeof(simple_avc_config_rom),
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};
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static const struct fw_unit unit0 = {
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.device = {
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.type = &fw_unit_type,
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.parent = (struct device *)&node.device,
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},
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.directory = &simple_avc_config_rom[12],
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};
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struct device *node_dev = (struct device *)&node.device;
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struct device *unit0_dev = (struct device *)&unit0.device;
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static const int unit0_expected_ids[] = {0x00ffffff, 0x00ffffff, 0x0000a02d, 0x00010001};
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char *buf = kunit_kzalloc(test, PAGE_SIZE, GFP_KERNEL);
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int ids[4] = {0, 0, 0, 0};
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// Ensure associations for node and unit devices.
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KUNIT_ASSERT_TRUE(test, is_fw_device(node_dev));
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KUNIT_ASSERT_FALSE(test, is_fw_unit(node_dev));
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KUNIT_ASSERT_PTR_EQ(test, fw_device(node_dev), &node);
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KUNIT_ASSERT_FALSE(test, is_fw_device(unit0_dev));
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KUNIT_ASSERT_TRUE(test, is_fw_unit(unit0_dev));
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KUNIT_ASSERT_PTR_EQ(test, fw_parent_device((&unit0)), &node);
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KUNIT_ASSERT_PTR_EQ(test, fw_unit(unit0_dev), &unit0);
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// For entries in root directory.
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// Vendor immediate entry is found.
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KUNIT_EXPECT_GT(test, show_immediate(node_dev, &config_rom_attributes[0].attr, buf), 0);
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KUNIT_EXPECT_STREQ(test, buf, "0xffffff\n");
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// Model immediate entry is found.
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KUNIT_EXPECT_GT(test, show_immediate(node_dev, &config_rom_attributes[4].attr, buf), 0);
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KUNIT_EXPECT_STREQ(test, buf, "0xffffff\n");
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// Descriptor leaf entry for vendor is found.
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KUNIT_EXPECT_GT(test, show_text_leaf(node_dev, &config_rom_attributes[5].attr, buf), 0);
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KUNIT_EXPECT_STREQ(test, buf, "Vendor Name\n");
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// Descriptor leaf entry for model is found.
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KUNIT_EXPECT_GT(test, show_text_leaf(node_dev, &config_rom_attributes[6].attr, buf), 0);
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KUNIT_EXPECT_STREQ(test, buf, "Model Name\n");
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// For entries in unit 0 directory.
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// Vendor immediate entry is not found.
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KUNIT_EXPECT_LT(test, show_immediate(unit0_dev, &config_rom_attributes[0].attr, buf), 0);
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// Model immediate entry is found.
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KUNIT_EXPECT_GT(test, show_immediate(unit0_dev, &config_rom_attributes[4].attr, buf), 0);
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KUNIT_EXPECT_STREQ(test, buf, "0xffffff\n");
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// Descriptor leaf entry for vendor is not found.
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KUNIT_EXPECT_LT(test, show_text_leaf(unit0_dev, &config_rom_attributes[5].attr, buf), 0);
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// Descriptor leaf entry for model is found.
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KUNIT_EXPECT_GT(test, show_text_leaf(unit0_dev, &config_rom_attributes[6].attr, buf), 0);
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KUNIT_EXPECT_STREQ(test, buf, "Model Name\n");
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// Specifier_ID immediate entry is found.
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KUNIT_EXPECT_GT(test, show_immediate(unit0_dev, &config_rom_attributes[2].attr, buf), 0);
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KUNIT_EXPECT_STREQ(test, buf, "0x00a02d\n");
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// Version immediate entry is found.
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KUNIT_EXPECT_GT(test, show_immediate(unit0_dev, &config_rom_attributes[3].attr, buf), 0);
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KUNIT_EXPECT_STREQ(test, buf, "0x010001\n");
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kunit_kfree(test, buf);
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get_modalias_ids(&unit0, ids);
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KUNIT_EXPECT_MEMEQ(test, ids, unit0_expected_ids, sizeof(ids));
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}
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static void device_attr_legacy_avc(struct kunit *test)
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{
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static const struct fw_device node = {
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.device = {
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.type = &fw_device_type,
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},
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.config_rom = legacy_avc_config_rom,
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.config_rom_length = sizeof(legacy_avc_config_rom),
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};
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static const struct fw_unit unit0 = {
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.device = {
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.type = &fw_unit_type,
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.parent = (struct device *)&node.device,
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},
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.directory = &legacy_avc_config_rom[11],
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};
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struct device *node_dev = (struct device *)&node.device;
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struct device *unit0_dev = (struct device *)&unit0.device;
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static const int unit0_expected_ids[] = {0x00012345, 0x00fedcba, 0x00abcdef, 0x00543210};
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char *buf = kunit_kzalloc(test, PAGE_SIZE, GFP_KERNEL);
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int ids[4] = {0, 0, 0, 0};
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// Ensure associations for node and unit devices.
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KUNIT_ASSERT_TRUE(test, is_fw_device(node_dev));
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KUNIT_ASSERT_FALSE(test, is_fw_unit(node_dev));
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KUNIT_ASSERT_PTR_EQ(test, fw_device((node_dev)), &node);
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KUNIT_ASSERT_FALSE(test, is_fw_device(unit0_dev));
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KUNIT_ASSERT_TRUE(test, is_fw_unit(unit0_dev));
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KUNIT_ASSERT_PTR_EQ(test, fw_parent_device((&unit0)), &node);
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KUNIT_ASSERT_PTR_EQ(test, fw_unit(unit0_dev), &unit0);
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// For entries in root directory.
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// Vendor immediate entry is found.
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KUNIT_EXPECT_GT(test, show_immediate(node_dev, &config_rom_attributes[0].attr, buf), 0);
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KUNIT_EXPECT_STREQ(test, buf, "0x012345\n");
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// Model immediate entry is found.
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KUNIT_EXPECT_GT(test, show_immediate(node_dev, &config_rom_attributes[4].attr, buf), 0);
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KUNIT_EXPECT_STREQ(test, buf, "0xfedcba\n");
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// Descriptor leaf entry for vendor is not found.
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KUNIT_EXPECT_LT(test, show_text_leaf(node_dev, &config_rom_attributes[5].attr, buf), 0);
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// Descriptor leaf entry for model is found.
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KUNIT_EXPECT_GT(test, show_text_leaf(node_dev, &config_rom_attributes[6].attr, buf), 0);
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KUNIT_EXPECT_STREQ(test, buf, "ABCDEFGHIJ\n");
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// For entries in unit 0 directory.
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// Vendor immediate entry is not found.
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KUNIT_EXPECT_LT(test, show_immediate(unit0_dev, &config_rom_attributes[0].attr, buf), 0);
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// Model immediate entry is not found.
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KUNIT_EXPECT_LT(test, show_immediate(unit0_dev, &config_rom_attributes[4].attr, buf), 0);
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// Descriptor leaf entry for vendor is not found.
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KUNIT_EXPECT_LT(test, show_text_leaf(unit0_dev, &config_rom_attributes[5].attr, buf), 0);
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// Descriptor leaf entry for model is not found.
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KUNIT_EXPECT_LT(test, show_text_leaf(unit0_dev, &config_rom_attributes[6].attr, buf), 0);
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// Specifier_ID immediate entry is found.
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KUNIT_EXPECT_GT(test, show_immediate(unit0_dev, &config_rom_attributes[2].attr, buf), 0);
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KUNIT_EXPECT_STREQ(test, buf, "0xabcdef\n");
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// Version immediate entry is found.
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KUNIT_EXPECT_GT(test, show_immediate(unit0_dev, &config_rom_attributes[3].attr, buf), 0);
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KUNIT_EXPECT_STREQ(test, buf, "0x543210\n");
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kunit_kfree(test, buf);
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get_modalias_ids(&unit0, ids);
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KUNIT_EXPECT_MEMEQ(test, ids, unit0_expected_ids, sizeof(ids));
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}
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static struct kunit_case device_attr_test_cases[] = {
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KUNIT_CASE(device_attr_simple_avc),
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KUNIT_CASE(device_attr_legacy_avc),
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{}
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};
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static struct kunit_suite device_attr_test_suite = {
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.name = "firewire-device-attribute",
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.test_cases = device_attr_test_cases,
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};
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kunit_test_suite(device_attr_test_suite);
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