| /* |
| * Copyright (c) 2019 Alexander Wachter |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| #include <drivers/can.h> |
| #include <ztest.h> |
| #include <strings.h> |
| |
| /* |
| * @addtogroup t_can_driver |
| * @{ |
| * @defgroup t_can_stm32 test_stm32_can |
| * @brief TestPurpose: verify correct filter handling of stm32 driver |
| * @details |
| * - Test Steps |
| * -# Set driver to loopback mode |
| * -# Attach a extended and masked filter (1 bank/filter) |
| * -# Attach a standard none masked filter (1/4 bank/filter) |
| * -# Detach the first filter (first bank gets free) an attach |
| * a different standard none masked filter (1/4 bank/filter). |
| * Bank 0 is extended to 4 filters/bank which leads to a left shift |
| * of the first filter by 3 and tests the corner case of the last filter |
| * is used. |
| * -# Test message sending and receiving |
| * -# Detach first fillter (gets free) and attach an extended filter. |
| * This shrinks bank 0 to 2 filters/bank which leads to a right shift |
| * of the first buffer by two. |
| * -# Test message sending and receiving. |
| * -# Detach both filters. |
| * - Expected Results |
| * -# Message reception should work in any case |
| * @} |
| */ |
| |
| #define TEST_SEND_TIMEOUT K_MSEC(100) |
| #define TEST_RECEIVE_TIMEOUT K_MSEC(100) |
| |
| #define TEST_CAN_STD_ID 0x555 |
| #define TEST_CAN_SOME_STD_ID 0x123 |
| |
| #define TEST_CAN_EXT_ID 0x15555555 |
| #define TEST_CAN_EXT_MASK 0x1FFFFFF0 |
| |
| CAN_DEFINE_MSGQ(can_msgq, 5); |
| |
| struct zcan_frame test_std_msg = { |
| .id_type = CAN_STANDARD_IDENTIFIER, |
| .rtr = CAN_DATAFRAME, |
| .std_id = TEST_CAN_STD_ID, |
| .dlc = 8, |
| .data = {1, 2, 3, 4, 5, 6, 7, 8} |
| }; |
| |
| const struct zcan_filter test_std_filter = { |
| .id_type = CAN_STANDARD_IDENTIFIER, |
| .rtr = CAN_DATAFRAME, |
| .std_id = TEST_CAN_STD_ID, |
| .rtr_mask = 1, |
| .std_id_mask = CAN_STD_ID_MASK |
| }; |
| |
| const struct zcan_filter test_ext_filter = { |
| .id_type = CAN_EXTENDED_IDENTIFIER, |
| .rtr = CAN_DATAFRAME, |
| .ext_id = TEST_CAN_EXT_ID, |
| .rtr_mask = 1, |
| .ext_id_mask = CAN_EXT_ID_MASK |
| }; |
| |
| const struct zcan_filter test_ext_masked_filter = { |
| .id_type = CAN_EXTENDED_IDENTIFIER, |
| .rtr = CAN_DATAFRAME, |
| .ext_id = TEST_CAN_EXT_ID, |
| .rtr_mask = 1, |
| .ext_id_mask = TEST_CAN_EXT_MASK |
| }; |
| |
| const struct zcan_filter test_std_some_filter = { |
| .id_type = CAN_STANDARD_IDENTIFIER, |
| .rtr = CAN_DATAFRAME, |
| .std_id = TEST_CAN_SOME_STD_ID, |
| .rtr_mask = 1, |
| .std_id_mask = CAN_STD_ID_MASK |
| }; |
| |
| static inline void check_msg(struct zcan_frame *msg1, struct zcan_frame *msg2) |
| { |
| int cmp_res; |
| |
| zassert_equal(msg1->id_type, msg2->id_type, |
| "ID type does not match"); |
| |
| zassert_equal(msg1->rtr, msg2->rtr, |
| "RTR bit does not match"); |
| |
| if (msg2->id_type == CAN_STANDARD_IDENTIFIER) { |
| zassert_equal(msg1->std_id, msg2->std_id, |
| "ID does not match"); |
| } else { |
| zassert_equal(msg1->ext_id, msg2->ext_id, |
| "ID does not match"); |
| } |
| |
| zassert_equal(msg1->dlc, msg2->dlc, |
| "DLC does not match"); |
| |
| cmp_res = memcmp(msg1->data, msg2->data, msg1->dlc); |
| zassert_equal(cmp_res, 0, "Received data differ"); |
| } |
| |
| static void send_test_msg(struct device *can_dev, struct zcan_frame *msg) |
| { |
| int ret; |
| |
| ret = can_send(can_dev, msg, TEST_SEND_TIMEOUT, NULL, NULL); |
| zassert_not_equal(ret, CAN_TX_ARB_LOST, |
| "Arbitration though in loopback mode"); |
| zassert_equal(ret, CAN_TX_OK, "Can't send a message. Err: %d", ret); |
| } |
| |
| /* |
| * Test a more adcvanced filter handling. Attach more than one filter at |
| * the same time, remove and change the filters before the message. |
| * This tests the internals filter handling of the driver itself. |
| */ |
| static void test_filter_handling(void) |
| { |
| struct device *can_dev; |
| int ret, filter_id_1, filter_id_2; |
| struct zcan_frame msg_buffer; |
| |
| can_dev = device_get_binding(DT_CHOSEN_ZEPHYR_CAN_PRIMARY_LABEL); |
| |
| ret = can_configure(can_dev, CAN_LOOPBACK_MODE, 0); |
| |
| filter_id_1 = can_attach_msgq(can_dev, &can_msgq, &test_ext_masked_filter); |
| zassert_not_equal(filter_id_1, CAN_NO_FREE_FILTER, |
| "Filter full even for a single one"); |
| zassert_true((filter_id_1 >= 0), "Negative filter number"); |
| |
| filter_id_2 = can_attach_msgq(can_dev, &can_msgq, &test_std_filter); |
| zassert_not_equal(filter_id_2, CAN_NO_FREE_FILTER, |
| "Filter full when attaching the second one"); |
| zassert_true((filter_id_2 >= 0), "Negative filter number"); |
| |
| can_detach(can_dev, filter_id_1); |
| filter_id_1 = can_attach_msgq(can_dev, &can_msgq, &test_std_some_filter); |
| zassert_not_equal(filter_id_1, CAN_NO_FREE_FILTER, |
| "Filter full when overriding the first one"); |
| zassert_true((filter_id_1 >= 0), "Negative filter number"); |
| |
| send_test_msg(can_dev, &test_std_msg); |
| |
| ret = k_msgq_get(&can_msgq, &msg_buffer, TEST_RECEIVE_TIMEOUT); |
| zassert_equal(ret, 0, "Receiving timeout"); |
| check_msg(&test_std_msg, &msg_buffer); |
| |
| ret = k_msgq_get(&can_msgq, &msg_buffer, TEST_RECEIVE_TIMEOUT); |
| zassert_equal(ret, -EAGAIN, "There is more than one msg in the queue"); |
| |
| can_detach(can_dev, filter_id_1); |
| filter_id_1 = can_attach_msgq(can_dev, &can_msgq, &test_ext_filter); |
| zassert_not_equal(filter_id_1, CAN_NO_FREE_FILTER, |
| "Filter full when overriding the first one"); |
| zassert_true((filter_id_1 >= 0), "Negative filter number"); |
| |
| send_test_msg(can_dev, &test_std_msg); |
| |
| ret = k_msgq_get(&can_msgq, &msg_buffer, TEST_RECEIVE_TIMEOUT); |
| zassert_equal(ret, 0, "Receiving timeout"); |
| check_msg(&test_std_msg, &msg_buffer); |
| |
| can_detach(can_dev, filter_id_1); |
| can_detach(can_dev, filter_id_2); |
| } |
| |
| void test_main(void) |
| { |
| ztest_test_suite(can_driver, |
| ztest_unit_test(test_filter_handling)); |
| ztest_run_test_suite(can_driver); |
| } |