158 lines
4.6 KiB
C
158 lines
4.6 KiB
C
/*
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* Copyright (c) 2022 Vestas Wind Systems A/S
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/device.h>
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#include <zephyr/drivers/can.h>
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#include <zephyr/drivers/can/can_fake.h>
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#include <zephyr/fff.h>
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#ifdef CONFIG_ZTEST
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#include <zephyr/ztest.h>
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#endif /* CONFIG_ZTEST */
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#define DT_DRV_COMPAT zephyr_fake_can
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struct fake_can_config {
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const struct can_driver_config common;
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};
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struct fake_can_data {
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struct can_driver_data common;
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};
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DEFINE_FAKE_VALUE_FUNC(int, fake_can_start, const struct device *);
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DEFINE_FAKE_VALUE_FUNC(int, fake_can_stop, const struct device *);
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DEFINE_FAKE_VALUE_FUNC(int, fake_can_set_timing, const struct device *, const struct can_timing *);
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DEFINE_FAKE_VALUE_FUNC(int, fake_can_set_timing_data, const struct device *,
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const struct can_timing *);
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DEFINE_FAKE_VALUE_FUNC(int, fake_can_get_capabilities, const struct device *, can_mode_t *);
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DEFINE_FAKE_VALUE_FUNC(int, fake_can_set_mode, const struct device *, can_mode_t);
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DEFINE_FAKE_VALUE_FUNC(int, fake_can_send, const struct device *, const struct can_frame *,
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k_timeout_t, can_tx_callback_t, void *);
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DEFINE_FAKE_VALUE_FUNC(int, fake_can_add_rx_filter, const struct device *, can_rx_callback_t,
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void *, const struct can_filter *);
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DEFINE_FAKE_VOID_FUNC(fake_can_remove_rx_filter, const struct device *, int);
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DEFINE_FAKE_VALUE_FUNC(int, fake_can_recover, const struct device *, k_timeout_t);
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DEFINE_FAKE_VALUE_FUNC(int, fake_can_get_state, const struct device *, enum can_state *,
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struct can_bus_err_cnt *);
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DEFINE_FAKE_VOID_FUNC(fake_can_set_state_change_callback, const struct device *,
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can_state_change_callback_t, void *);
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DEFINE_FAKE_VALUE_FUNC(int, fake_can_get_max_filters, const struct device *, bool);
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DEFINE_FAKE_VALUE_FUNC(int, fake_can_get_core_clock, const struct device *, uint32_t *);
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static int fake_can_get_core_clock_delegate(const struct device *dev, uint32_t *rate)
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{
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ARG_UNUSED(dev);
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*rate = 16000000;
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return 0;
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}
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#ifdef CONFIG_ZTEST
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static void fake_can_reset_rule_before(const struct ztest_unit_test *test, void *fixture)
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{
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ARG_UNUSED(test);
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ARG_UNUSED(fixture);
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RESET_FAKE(fake_can_start);
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RESET_FAKE(fake_can_stop);
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RESET_FAKE(fake_can_get_capabilities);
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RESET_FAKE(fake_can_set_mode);
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RESET_FAKE(fake_can_set_timing);
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RESET_FAKE(fake_can_set_timing_data);
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RESET_FAKE(fake_can_send);
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RESET_FAKE(fake_can_add_rx_filter);
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RESET_FAKE(fake_can_remove_rx_filter);
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RESET_FAKE(fake_can_get_state);
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RESET_FAKE(fake_can_recover);
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RESET_FAKE(fake_can_set_state_change_callback);
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RESET_FAKE(fake_can_get_max_filters);
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RESET_FAKE(fake_can_get_core_clock);
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/* Re-install default delegate for reporting the core clock */
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fake_can_get_core_clock_fake.custom_fake = fake_can_get_core_clock_delegate;
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}
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ZTEST_RULE(fake_can_reset_rule, fake_can_reset_rule_before, NULL);
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#endif /* CONFIG_ZTEST */
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static const struct can_driver_api fake_can_driver_api = {
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.start = fake_can_start,
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.stop = fake_can_stop,
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.get_capabilities = fake_can_get_capabilities,
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.set_mode = fake_can_set_mode,
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.set_timing = fake_can_set_timing,
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.send = fake_can_send,
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.add_rx_filter = fake_can_add_rx_filter,
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.remove_rx_filter = fake_can_remove_rx_filter,
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.get_state = fake_can_get_state,
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#ifndef CONFIG_CAN_AUTO_BUS_OFF_RECOVERY
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.recover = fake_can_recover,
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#endif /* CONFIG_CAN_AUTO_BUS_OFF_RECOVERY */
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.set_state_change_callback = fake_can_set_state_change_callback,
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.get_core_clock = fake_can_get_core_clock,
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.get_max_filters = fake_can_get_max_filters,
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.timing_min = {
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.sjw = 0x01,
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.prop_seg = 0x01,
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.phase_seg1 = 0x01,
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.phase_seg2 = 0x01,
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.prescaler = 0x01
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},
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.timing_max = {
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.sjw = 0x0f,
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.prop_seg = 0x0f,
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.phase_seg1 = 0x0f,
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.phase_seg2 = 0x0f,
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.prescaler = 0xffff
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},
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#ifdef CONFIG_CAN_FD_MODE
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.set_timing_data = fake_can_set_timing_data,
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.timing_data_min = {
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.sjw = 0x01,
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.prop_seg = 0x01,
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.phase_seg1 = 0x01,
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.phase_seg2 = 0x01,
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.prescaler = 0x01
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},
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.timing_data_max = {
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.sjw = 0x0f,
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.prop_seg = 0x0f,
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.phase_seg1 = 0x0f,
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.phase_seg2 = 0x0f,
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.prescaler = 0xffff
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},
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#endif /* CONFIG_CAN_FD_MODE */
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};
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#define FAKE_CAN_INIT(inst) \
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static const struct fake_can_config fake_can_config_##inst = { \
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.common = CAN_DT_DRIVER_CONFIG_INST_GET(inst, 0U), \
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}; \
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\
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static struct fake_can_data fake_can_data_##inst; \
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\
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CAN_DEVICE_DT_INST_DEFINE(inst, NULL, NULL, &fake_can_data_##inst, \
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&fake_can_config_##inst, POST_KERNEL, \
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CONFIG_CAN_INIT_PRIORITY, \
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&fake_can_driver_api);
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DT_INST_FOREACH_STATUS_OKAY(FAKE_CAN_INIT)
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