1 // SPDX-License-Identifier: GPL-2.0-or-later 2 // 3 // ohci-serdes-test.c - An application of Kunit to check serialization/deserialization of data in 4 // buffers and registers defined in 1394 OHCI specification. 5 // 6 // Copyright (c) 2024 Takashi Sakamoto 7 8 #include <kunit/test.h> 9 10 #include "ohci.h" 11 12 13 static void test_self_id_count_register_deserialization(struct kunit *test) 14 { 15 const u32 expected = 0x803d0594; 16 17 bool is_error = ohci1394_self_id_count_is_error(expected); 18 u8 generation = ohci1394_self_id_count_get_generation(expected); 19 u32 size = ohci1394_self_id_count_get_size(expected); 20 21 KUNIT_EXPECT_TRUE(test, is_error); 22 KUNIT_EXPECT_EQ(test, 0x3d, generation); 23 KUNIT_EXPECT_EQ(test, 0x165, size); 24 } 25 26 static void test_self_id_receive_buffer_deserialization(struct kunit *test) 27 { 28 const u32 buffer[] = { 29 0x0006f38b, 30 0x807fcc56, 31 0x7f8033a9, 32 0x8145cc5e, 33 0x7eba33a1, 34 }; 35 36 u8 generation = ohci1394_self_id_receive_q0_get_generation(buffer[0]); 37 u16 timestamp = ohci1394_self_id_receive_q0_get_timestamp(buffer[0]); 38 39 KUNIT_EXPECT_EQ(test, 0x6, generation); 40 KUNIT_EXPECT_EQ(test, 0xf38b, timestamp); 41 } 42 43 static struct kunit_case ohci_serdes_test_cases[] = { 44 KUNIT_CASE(test_self_id_count_register_deserialization), 45 KUNIT_CASE(test_self_id_receive_buffer_deserialization), 46 {} 47 }; 48 49 static struct kunit_suite ohci_serdes_test_suite = { 50 .name = "firewire-ohci-serdes", 51 .test_cases = ohci_serdes_test_cases, 52 }; 53 kunit_test_suite(ohci_serdes_test_suite); 54 55 MODULE_DESCRIPTION("FireWire buffers and registers serialization/deserialization unit test suite"); 56 MODULE_LICENSE("GPL"); 57