// SPDX-License-Identifier: GPL-2.0+ /* * HID driver for UC-Logic devices not fully compliant with HID standard * * Copyright (c) 2022 José Expósito */ #include #include "./hid-uclogic-rdesc.h" MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING"); struct uclogic_template_case { const char *name; const __u8 *template; size_t template_size; const s32 *param_list; size_t param_num; const __u8 *expected; }; static const s32 params_pen_all[UCLOGIC_RDESC_PH_ID_NUM] = { [UCLOGIC_RDESC_PEN_PH_ID_X_LM] = 0xAA, [UCLOGIC_RDESC_PEN_PH_ID_X_PM] = 0xBB, [UCLOGIC_RDESC_PEN_PH_ID_Y_LM] = 0xCC, [UCLOGIC_RDESC_PEN_PH_ID_Y_PM] = 0xDD, [UCLOGIC_RDESC_PEN_PH_ID_PRESSURE_LM] = 0xEE, }; static const s32 params_pen_some[] = { [UCLOGIC_RDESC_PEN_PH_ID_X_LM] = 0xAA, [UCLOGIC_RDESC_PEN_PH_ID_X_PM] = 0xBB, }; static const s32 params_frame_all[UCLOGIC_RDESC_PH_ID_NUM] = { [UCLOGIC_RDESC_FRAME_PH_ID_UM] = 0xFF, }; static const __u8 template_empty[] = { }; static const __u8 template_small[] = { 0x00 }; static const __u8 template_no_ph[] = { 0xAA, 0xFE, 0xAA, 0xED, 0x1D }; static const __u8 template_pen_ph_end[] = { 0xAA, 0xBB, UCLOGIC_RDESC_PEN_PH_HEAD }; static const __u8 template_btn_ph_end[] = { 0xAA, 0xBB, UCLOGIC_RDESC_FRAME_PH_BTN_HEAD }; static const __u8 template_pen_all_params[] = { UCLOGIC_RDESC_PEN_PH(X_LM), 0x47, UCLOGIC_RDESC_PEN_PH(X_PM), 0x27, UCLOGIC_RDESC_PEN_PH(Y_LM), UCLOGIC_RDESC_PEN_PH(Y_PM), 0x00, UCLOGIC_RDESC_PEN_PH(PRESSURE_LM), }; static const __u8 expected_pen_all_params[] = { 0xAA, 0x00, 0x00, 0x00, 0x47, 0xBB, 0x00, 0x00, 0x00, 0x27, 0xCC, 0x00, 0x00, 0x00, 0xDD, 0x00, 0x00, 0x00, 0x00, 0xEE, 0x00, 0x00, 0x00, }; static const __u8 template_frame_all_params[] = { 0x01, 0x02, UCLOGIC_RDESC_FRAME_PH_BTN, 0x99, }; static const __u8 expected_frame_all_params[] = { 0x01, 0x02, 0x2A, 0xFF, 0x00, 0x99, }; static const __u8 template_pen_some_params[] = { 0x01, 0x02, UCLOGIC_RDESC_PEN_PH(X_LM), 0x03, UCLOGIC_RDESC_PEN_PH(X_PM), 0x04, 0x05, }; static const __u8 expected_pen_some_params[] = { 0x01, 0x02, 0xAA, 0x00, 0x00, 0x00, 0x03, 0xBB, 0x00, 0x00, 0x00, 0x04, 0x05, }; static const __u8 template_params_none[] = { 0x27, UCLOGIC_RDESC_PEN_PH(Y_LM), UCLOGIC_RDESC_PEN_PH(Y_PM), 0x00, UCLOGIC_RDESC_PEN_PH(PRESSURE_LM), }; static struct uclogic_template_case uclogic_template_cases[] = { { .name = "empty_template", .template = template_empty, .template_size = sizeof(template_empty), .param_list = params_pen_all, .param_num = ARRAY_SIZE(params_pen_all), .expected = template_empty, }, { .name = "template_smaller_than_the_placeholder", .template = template_small, .template_size = sizeof(template_small), .param_list = params_pen_all, .param_num = ARRAY_SIZE(params_pen_all), .expected = template_small, }, { .name = "no_placeholder", .template = template_no_ph, .template_size = sizeof(template_no_ph), .param_list = params_pen_all, .param_num = ARRAY_SIZE(params_pen_all), .expected = template_no_ph, }, { .name = "pen_placeholder_at_the_end_without_id", .template = template_pen_ph_end, .template_size = sizeof(template_pen_ph_end), .param_list = params_pen_all, .param_num = ARRAY_SIZE(params_pen_all), .expected = template_pen_ph_end, }, { .name = "frame_button_placeholder_at_the_end_without_id", .template = template_btn_ph_end, .template_size = sizeof(template_btn_ph_end), .param_list = params_frame_all, .param_num = ARRAY_SIZE(params_frame_all), .expected = template_btn_ph_end, }, { .name = "all_params_present_in_the_pen_template", .template = template_pen_all_params, .template_size = sizeof(template_pen_all_params), .param_list = params_pen_all, .param_num = ARRAY_SIZE(params_pen_all), .expected = expected_pen_all_params, }, { .name = "all_params_present_in_the_frame_template", .template = template_frame_all_params, .template_size = sizeof(template_frame_all_params), .param_list = params_frame_all, .param_num = ARRAY_SIZE(params_frame_all), .expected = expected_frame_all_params, }, { .name = "some_params_present_in_the_pen_template_with_complete_param_list", .template = template_pen_some_params, .template_size = sizeof(template_pen_some_params), .param_list = params_pen_all, .param_num = ARRAY_SIZE(params_pen_all), .expected = expected_pen_some_params, }, { .name = "some_params_present_in_the_pen_template_with_incomplete_param_list", .template = template_pen_some_params, .template_size = sizeof(template_pen_some_params), .param_list = params_pen_some, .param_num = ARRAY_SIZE(params_pen_some), .expected = expected_pen_some_params, }, { .name = "no_params_present_in_the_template", .template = template_params_none, .template_size = sizeof(template_params_none), .param_list = params_pen_some, .param_num = ARRAY_SIZE(params_pen_some), .expected = template_params_none, }, }; static void uclogic_template_case_desc(struct uclogic_template_case *t, char *desc) { strscpy(desc, t->name, KUNIT_PARAM_DESC_SIZE); } KUNIT_ARRAY_PARAM(uclogic_template, uclogic_template_cases, uclogic_template_case_desc); static void hid_test_uclogic_template(struct kunit *test) { __u8 *res; const struct uclogic_template_case *params = test->param_value; res = uclogic_rdesc_template_apply(params->template, params->template_size, params->param_list, params->param_num); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, res); KUNIT_EXPECT_MEMEQ(test, res, params->expected, params->template_size); kfree(res); } static struct kunit_case hid_uclogic_rdesc_test_cases[] = { KUNIT_CASE_PARAM(hid_test_uclogic_template, uclogic_template_gen_params), {} }; static struct kunit_suite hid_uclogic_rdesc_test_suite = { .name = "hid_uclogic_rdesc_test", .test_cases = hid_uclogic_rdesc_test_cases, }; kunit_test_suite(hid_uclogic_rdesc_test_suite); MODULE_DESCRIPTION("KUnit tests for the UC-Logic driver"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("José Expósito ");