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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254// SPDX-License-Identifier: GPL-2.0-only//// device-attribute-test.c - An application of Kunit to test implementation for device attributes.//// Copyright (c) 2023 Takashi Sakamoto//// This file can not be built independently since it is intentionally included in core-device.c.
#include <kunit/test.h>
// Configuration ROM for AV/C Devices 1.0 (Dec. 12, 2000, 1394 Trading Association)// Annex C:Configuration ROM example(informative)// C.1 Simple AV/C device//// Copied from the documentation.static const u32 simple_avc_config_rom[] = { 0x0404eabf, 0x31333934, 0xe0646102, 0xffffffff, 0xffffffff, 0x00063287, // root directory. 0x03ffffff, 0x8100000a, 0x17ffffff, 0x8100000e, 0x0c0083c0, 0xd1000001, 0x0004442d, // unit 0 directory. 0x1200a02d, 0x13010001, 0x17ffffff, 0x81000007, 0x0005c915, // leaf for textual descriptor. 0x00000000, 0x00000000, 0x56656e64, 0x6f72204e, 0x616d6500, 0x00057f16, // leaf for textual descriptor. 0x00000000, 0x00000000, 0x4d6f6465, 0x6c204e61, 0x6d650000,};
// Ibid.// Annex A:Consideration for configuration ROM reader design (informative)// A.1 Vendor directory//// Written by hand.static const u32 legacy_avc_config_rom[] = { 0x04199fe7, 0x31333934, 0xe0644000, 0x00112233, 0x44556677, 0x0005dace, // root directory. 0x03012345, 0x0c0083c0, 0x8d000009, 0xd1000002, 0xc3000004, 0x0002e107, // unit 0 directory. 0x12abcdef, 0x13543210, 0x0002cb73, // vendor directory. 0x17fedcba, 0x81000004, 0x00026dc1, // leaf for EUI-64. 0x00112233, 0x44556677, 0x00050e84, // leaf for textual descriptor. 0x00000000, 0x00000000, 0x41424344, 0x45464748, 0x494a0000,};
static void device_attr_simple_avc(struct kunit *test){ static const struct fw_device node = { .device = { .type = &fw_device_type, }, .config_rom = simple_avc_config_rom, .config_rom_length = sizeof(simple_avc_config_rom), }; static const struct fw_unit unit0 = { .device = { .type = &fw_unit_type, .parent = (struct device *)&node.device, }, .directory = &simple_avc_config_rom[12], }; struct device *node_dev = (struct device *)&node.device; struct device *unit0_dev = (struct device *)&unit0.device; static const int unit0_expected_ids[] = {0x00ffffff, 0x00ffffff, 0x0000a02d, 0x00010001}; char *buf = kunit_kzalloc(test, PAGE_SIZE, GFP_KERNEL); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf); int ids[4] = {0, 0, 0, 0};
// Ensure associations for node and unit devices.
KUNIT_ASSERT_TRUE(test, is_fw_device(node_dev)); KUNIT_ASSERT_FALSE(test, is_fw_unit(node_dev)); KUNIT_ASSERT_PTR_EQ(test, fw_device(node_dev), &node);
KUNIT_ASSERT_FALSE(test, is_fw_device(unit0_dev)); KUNIT_ASSERT_TRUE(test, is_fw_unit(unit0_dev)); KUNIT_ASSERT_PTR_EQ(test, fw_parent_device((&unit0)), &node); KUNIT_ASSERT_PTR_EQ(test, fw_unit(unit0_dev), &unit0);
// For entries in root directory.
// Vendor immediate entry is found. KUNIT_EXPECT_GT(test, show_immediate(node_dev, &config_rom_attributes[0].attr, buf), 0); KUNIT_EXPECT_STREQ(test, buf, "0xffffff\n");
// Model immediate entry is found. KUNIT_EXPECT_GT(test, show_immediate(node_dev, &config_rom_attributes[4].attr, buf), 0); KUNIT_EXPECT_STREQ(test, buf, "0xffffff\n");
// Descriptor leaf entry for vendor is found. KUNIT_EXPECT_GT(test, show_text_leaf(node_dev, &config_rom_attributes[5].attr, buf), 0); KUNIT_EXPECT_STREQ(test, buf, "Vendor Name\n");
// Descriptor leaf entry for model is found. KUNIT_EXPECT_GT(test, show_text_leaf(node_dev, &config_rom_attributes[6].attr, buf), 0); KUNIT_EXPECT_STREQ(test, buf, "Model Name\n");
// For entries in unit 0 directory.
// Vendor immediate entry is not found. KUNIT_EXPECT_LT(test, show_immediate(unit0_dev, &config_rom_attributes[0].attr, buf), 0);
// Model immediate entry is found. KUNIT_EXPECT_GT(test, show_immediate(unit0_dev, &config_rom_attributes[4].attr, buf), 0); KUNIT_EXPECT_STREQ(test, buf, "0xffffff\n");
// Descriptor leaf entry for vendor is not found. KUNIT_EXPECT_LT(test, show_text_leaf(unit0_dev, &config_rom_attributes[5].attr, buf), 0);
// Descriptor leaf entry for model is found. KUNIT_EXPECT_GT(test, show_text_leaf(unit0_dev, &config_rom_attributes[6].attr, buf), 0); KUNIT_EXPECT_STREQ(test, buf, "Model Name\n");
// Specifier_ID immediate entry is found. KUNIT_EXPECT_GT(test, show_immediate(unit0_dev, &config_rom_attributes[2].attr, buf), 0); KUNIT_EXPECT_STREQ(test, buf, "0x00a02d\n");
// Version immediate entry is found. KUNIT_EXPECT_GT(test, show_immediate(unit0_dev, &config_rom_attributes[3].attr, buf), 0); KUNIT_EXPECT_STREQ(test, buf, "0x010001\n");
kunit_kfree(test, buf);
get_modalias_ids(&unit0, ids); KUNIT_EXPECT_MEMEQ(test, ids, unit0_expected_ids, sizeof(ids));}
static void device_attr_legacy_avc(struct kunit *test){ static const struct fw_device node = { .device = { .type = &fw_device_type, }, .config_rom = legacy_avc_config_rom, .config_rom_length = sizeof(legacy_avc_config_rom), }; static const struct fw_unit unit0 = { .device = { .type = &fw_unit_type, .parent = (struct device *)&node.device, }, .directory = &legacy_avc_config_rom[11], }; struct device *node_dev = (struct device *)&node.device; struct device *unit0_dev = (struct device *)&unit0.device; static const int unit0_expected_ids[] = {0x00012345, 0x00fedcba, 0x00abcdef, 0x00543210}; char *buf = kunit_kzalloc(test, PAGE_SIZE, GFP_KERNEL); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf); int ids[4] = {0, 0, 0, 0};
// Ensure associations for node and unit devices.
KUNIT_ASSERT_TRUE(test, is_fw_device(node_dev)); KUNIT_ASSERT_FALSE(test, is_fw_unit(node_dev)); KUNIT_ASSERT_PTR_EQ(test, fw_device((node_dev)), &node);
KUNIT_ASSERT_FALSE(test, is_fw_device(unit0_dev)); KUNIT_ASSERT_TRUE(test, is_fw_unit(unit0_dev)); KUNIT_ASSERT_PTR_EQ(test, fw_parent_device((&unit0)), &node); KUNIT_ASSERT_PTR_EQ(test, fw_unit(unit0_dev), &unit0);
// For entries in root directory.
// Vendor immediate entry is found. KUNIT_EXPECT_GT(test, show_immediate(node_dev, &config_rom_attributes[0].attr, buf), 0); KUNIT_EXPECT_STREQ(test, buf, "0x012345\n");
// Model immediate entry is found. KUNIT_EXPECT_GT(test, show_immediate(node_dev, &config_rom_attributes[4].attr, buf), 0); KUNIT_EXPECT_STREQ(test, buf, "0xfedcba\n");
// Descriptor leaf entry for vendor is not found. KUNIT_EXPECT_LT(test, show_text_leaf(node_dev, &config_rom_attributes[5].attr, buf), 0);
// Descriptor leaf entry for model is found. KUNIT_EXPECT_GT(test, show_text_leaf(node_dev, &config_rom_attributes[6].attr, buf), 0); KUNIT_EXPECT_STREQ(test, buf, "ABCDEFGHIJ\n");
// For entries in unit 0 directory.
// Vendor immediate entry is not found. KUNIT_EXPECT_LT(test, show_immediate(unit0_dev, &config_rom_attributes[0].attr, buf), 0);
// Model immediate entry is not found. KUNIT_EXPECT_LT(test, show_immediate(unit0_dev, &config_rom_attributes[4].attr, buf), 0);
// Descriptor leaf entry for vendor is not found. KUNIT_EXPECT_LT(test, show_text_leaf(unit0_dev, &config_rom_attributes[5].attr, buf), 0);
// Descriptor leaf entry for model is not found. KUNIT_EXPECT_LT(test, show_text_leaf(unit0_dev, &config_rom_attributes[6].attr, buf), 0);
// Specifier_ID immediate entry is found. KUNIT_EXPECT_GT(test, show_immediate(unit0_dev, &config_rom_attributes[2].attr, buf), 0); KUNIT_EXPECT_STREQ(test, buf, "0xabcdef\n");
// Version immediate entry is found. KUNIT_EXPECT_GT(test, show_immediate(unit0_dev, &config_rom_attributes[3].attr, buf), 0); KUNIT_EXPECT_STREQ(test, buf, "0x543210\n");
kunit_kfree(test, buf);
get_modalias_ids(&unit0, ids); KUNIT_EXPECT_MEMEQ(test, ids, unit0_expected_ids, sizeof(ids));}
static struct kunit_case device_attr_test_cases[] = { KUNIT_CASE(device_attr_simple_avc), KUNIT_CASE(device_attr_legacy_avc), {}};
static struct kunit_suite device_attr_test_suite = { .name = "firewire-device-attribute", .test_cases = device_attr_test_cases,};kunit_test_suite(device_attr_test_suite);