4  * SPDX-License-Identifier: Apache-2.0
18 #define UART_DUMMY_NODE        DT_NODELABEL(dummy)
24  * Leave one byte left in tx to avoid filling it completely which will block the UART
25  * tx ready IRQ event.
27 #define SAMPLE_DATA_SIZE MIN(EMUL_UART_RX_FIFO_SIZE, EMUL_UART_TX_FIFO_SIZE) - 1
69 	uart_emul_flush_rx_data(fixture->dev);  in uart_emul_device_before()
70 	uart_emul_flush_tx_data(fixture->dev);  in uart_emul_device_before()
72 	uart_err_check(fixture->dev);  in uart_emul_device_before()
74 	memset(fixture->rx_content, 0, sizeof(fixture->rx_content));  in uart_emul_device_before()
77 	uart_irq_tx_disable(fixture->dev);  in uart_emul_device_before()
78 	uart_irq_rx_disable(fixture->dev);  in uart_emul_device_before()
80 	k_sem_reset(&fixture->tx_done_sem);  in uart_emul_device_before()
81 	k_sem_reset(&fixture->rx_done_sem);  in uart_emul_device_before()
83 	fixture->tx_remaining = SAMPLE_DATA_SIZE;  in uart_emul_device_before()
84 	fixture->rx_remaining = SAMPLE_DATA_SIZE;  in uart_emul_device_before()
88 	uart_tx_abort(fixture->dev);  in uart_emul_device_before()
89 	uart_rx_disable(fixture->dev);  in uart_emul_device_before()
91 	k_event_set(&fixture->async_events, 0);  in uart_emul_device_before()
102 		uart_poll_out(fixture->dev, i);  in ZTEST_F()
105 	len = uart_emul_get_tx_data(fixture->dev, NULL, UINT32_MAX);  in ZTEST_F()
106 	zassert_equal(len, 0, "TX buffer should be empty");  in ZTEST_F()
109 		ret = uart_poll_in(fixture->dev, &byte);  in ZTEST_F()
114 	ret = uart_poll_in(fixture->dev, &byte);  in ZTEST_F()
115 	zassert_equal(ret, -1, "RX buffer should be empty");  in ZTEST_F()
124 	if (fixture->tx_remaining) {  in uart_emul_device_isr_handle_tx_ready()
125 		sample_data_it = sizeof(fixture->sample_data) - fixture->tx_remaining;  in uart_emul_device_isr_handle_tx_ready()
126 		ret = uart_fifo_fill(fixture->dev, &fixture->sample_data[sample_data_it],  in uart_emul_device_isr_handle_tx_ready()
127 				     fixture->tx_remaining);  in uart_emul_device_isr_handle_tx_ready()
128 		fixture->tx_remaining -= (size_t)ret;  in uart_emul_device_isr_handle_tx_ready()
131 	if (fixture->tx_remaining == 0) {  in uart_emul_device_isr_handle_tx_ready()
132 		uart_irq_tx_disable(fixture->dev);  in uart_emul_device_isr_handle_tx_ready()
133 		k_sem_give(&fixture->tx_done_sem);  in uart_emul_device_isr_handle_tx_ready()
142 	if (fixture->rx_remaining) {  in uart_emul_device_isr_handle_rx_ready()
143 		rx_content_it = sizeof(fixture->rx_content) - fixture->rx_remaining;  in uart_emul_device_isr_handle_rx_ready()
144 		ret = uart_fifo_read(fixture->dev, &fixture->rx_content[rx_content_it],  in uart_emul_device_isr_handle_rx_ready()
145 				     fixture->rx_remaining);  in uart_emul_device_isr_handle_rx_ready()
146 		fixture->rx_remaining -= (size_t)ret;  in uart_emul_device_isr_handle_rx_ready()
149 	if (fixture->rx_remaining == 0) {  in uart_emul_device_isr_handle_rx_ready()
150 		k_sem_give(&fixture->rx_done_sem);  in uart_emul_device_isr_handle_rx_ready()
159 		if (uart_irq_tx_ready(fixture->dev)) {  in uart_emul_device_isr()
162 		if (uart_irq_rx_ready(fixture->dev)) {  in uart_emul_device_isr()
173 	uart_irq_callback_user_data_set(fixture->dev, uart_emul_device_isr, fixture);  in ZTEST_F()
175 	uart_irq_rx_enable(fixture->dev);  in ZTEST_F()
176 	/* enabling the tx irq will call the callback, if set */  in ZTEST_F()
177 	uart_irq_tx_enable(fixture->dev);  in ZTEST_F()
180 	zassert_ok(k_sem_take(&fixture->tx_done_sem, K_SECONDS(1)),  in ZTEST_F()
181 		   "Timeout waiting for UART TX ISR");  in ZTEST_F()
183 	tx_len = uart_emul_get_tx_data(fixture->dev, NULL, SAMPLE_DATA_SIZE);  in ZTEST_F()
184 	zassert_equal(tx_len, 0, "TX buffer should be empty");  in ZTEST_F()
186 	zassert_ok(k_sem_take(&fixture->rx_done_sem, K_SECONDS(1)),  in ZTEST_F()
188 	zassert_mem_equal(fixture->rx_content, fixture->sample_data, SAMPLE_DATA_SIZE);  in ZTEST_F()
191 	rc = uart_poll_in(fixture->dev, &fixture->rx_content[0]);  in ZTEST_F()
192 	zassert_equal(rc, -1, "RX buffer should be empty");  in ZTEST_F()
194 	uart_irq_rx_disable(fixture->dev);  in ZTEST_F()
204 	k_event_post(&fixture->async_events, ((uint32_t)1 << evt->type));  in uart_emul_callback()
206 	switch (evt->type) {  in uart_emul_callback()
208 		zassert_equal(evt->data.tx.len, sizeof(fixture->sample_data));  in uart_emul_callback()
209 		zassert_equal(evt->data.tx.buf, fixture->sample_data);  in uart_emul_callback()
212 		zassert_equal(evt->data.rx.len, sizeof(fixture->sample_data));  in uart_emul_callback()
213 		zassert_mem_equal(&evt->data.rx.buf[evt->data.rx.offset], fixture->sample_data,  in uart_emul_callback()
214 				  sizeof(fixture->sample_data));  in uart_emul_callback()
217 		zassert_equal(evt->data.rx_buf.buf, fixture->rx_content);  in uart_emul_callback()
230 	return k_event_wait(&fixture->async_events, ((uint32_t)1 << event), false, K_SECONDS(1)) !=  in uart_emul_device_wait_for_event()
238 	uart_emul_set_release_buffer_on_timeout(fixture->dev, true);  in ZTEST_F()
240 	zassert_ok(uart_callback_set(fixture->dev, uart_emul_callback, fixture));  in ZTEST_F()
241 	zassert_ok(uart_tx(fixture->dev, fixture->sample_data, sizeof(fixture->sample_data),  in ZTEST_F()
243 	zassert_ok(uart_rx_enable(fixture->dev, fixture->rx_content, sizeof(fixture->rx_content),  in ZTEST_F()
250 	tx_len = uart_emul_get_tx_data(fixture->dev, NULL, SAMPLE_DATA_SIZE);  in ZTEST_F()
251 	zassert_equal(tx_len, 0, "TX buffer should be empty");  in ZTEST_F()
257 	zassert_mem_equal(fixture->rx_content, fixture->sample_data, SAMPLE_DATA_SIZE);  in ZTEST_F()
269 /* Our dummy device echoes all data received */
276 	zassert_equal(target->bus_type, EMUL_BUS_TYPE_UART, "UART bus required");  in uart_dummy_emul_tx_ready()