1 // SPDX-License-Identifier: GPL-2.0+ 2 3 /* 4 * HID driver for UC-Logic devices not fully compliant with HID standard 5 * 6 * Copyright (c) 2022 José Expósito <jose.exposito89@gmail.com> 7 */ 8 9 #include <kunit/test.h> 10 #include "./hid-uclogic-params.h" 11 12 #define MAX_EVENT_SIZE 12 13 14 struct uclogic_raw_event_hook_test { 15 u8 event[MAX_EVENT_SIZE]; 16 size_t size; 17 bool expected; 18 }; 19 20 static struct uclogic_raw_event_hook_test hook_events[] = { 21 { 22 .event = { 0xA1, 0xB2, 0xC3, 0xD4 }, 23 .size = 4, 24 }, 25 { 26 .event = { 0x1F, 0x2E, 0x3D, 0x4C, 0x5B, 0x6A }, 27 .size = 6, 28 }, 29 }; 30 31 static struct uclogic_raw_event_hook_test test_events[] = { 32 { 33 .event = { 0xA1, 0xB2, 0xC3, 0xD4 }, 34 .size = 4, 35 .expected = true, 36 }, 37 { 38 .event = { 0x1F, 0x2E, 0x3D, 0x4C, 0x5B, 0x6A }, 39 .size = 6, 40 .expected = true, 41 }, 42 { 43 .event = { 0xA1, 0xB2, 0xC3 }, 44 .size = 3, 45 .expected = false, 46 }, 47 { 48 .event = { 0xA1, 0xB2, 0xC3, 0xD4, 0x00 }, 49 .size = 5, 50 .expected = false, 51 }, 52 { 53 .event = { 0x2E, 0x3D, 0x4C, 0x5B, 0x6A, 0x1F }, 54 .size = 6, 55 .expected = false, 56 }, 57 }; 58 59 static void fake_work(struct work_struct *work) 60 { 61 62 } 63 64 static void hid_test_uclogic_exec_event_hook_test(struct kunit *test) 65 { 66 struct uclogic_params p = {0, }; 67 struct uclogic_raw_event_hook *filter; 68 bool res; 69 int n; 70 71 /* Initialize the list of events to hook */ 72 p.event_hooks = kunit_kzalloc(test, sizeof(*p.event_hooks), GFP_KERNEL); 73 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p.event_hooks); 74 INIT_LIST_HEAD(&p.event_hooks->list); 75 76 for (n = 0; n < ARRAY_SIZE(hook_events); n++) { 77 filter = kunit_kzalloc(test, sizeof(*filter), GFP_KERNEL); 78 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filter); 79 80 filter->size = hook_events[n].size; 81 filter->event = kunit_kzalloc(test, filter->size, GFP_KERNEL); 82 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filter->event); 83 memcpy(filter->event, &hook_events[n].event[0], filter->size); 84 85 INIT_WORK(&filter->work, fake_work); 86 87 list_add_tail(&filter->list, &p.event_hooks->list); 88 } 89 90 /* Test uclogic_exec_event_hook() */ 91 for (n = 0; n < ARRAY_SIZE(test_events); n++) { 92 res = uclogic_exec_event_hook(&p, &test_events[n].event[0], 93 test_events[n].size); 94 KUNIT_ASSERT_EQ(test, res, test_events[n].expected); 95 } 96 } 97 98 static struct kunit_case hid_uclogic_core_test_cases[] = { 99 KUNIT_CASE(hid_test_uclogic_exec_event_hook_test), 100 {} 101 }; 102 103 static struct kunit_suite hid_uclogic_core_test_suite = { 104 .name = "hid_uclogic_core_test", 105 .test_cases = hid_uclogic_core_test_cases, 106 }; 107 108 kunit_test_suite(hid_uclogic_core_test_suite); 109 110 MODULE_DESCRIPTION("KUnit tests for the UC-Logic driver"); 111 MODULE_LICENSE("GPL"); 112 MODULE_AUTHOR("José Expósito <jose.exposito89@gmail.com>"); 113