25 	if (!atomic_test_bit(&backend->async.state,  in modem_backend_uart_async_is_uart_stopped()
27 	    !atomic_test_bit(&backend->async.state,  in modem_backend_uart_async_is_uart_stopped()
29 	    !atomic_test_bit(&backend->async.state,  in modem_backend_uart_async_is_uart_stopped()
31 	    !atomic_test_bit(&backend->async.state,  in modem_backend_uart_async_is_uart_stopped()
41 	return atomic_test_bit(&backend->async.state,  in modem_backend_uart_async_is_open()
47 	return ring_buf_size_get(&backend->async.receive_rb);  in get_receive_buf_length()
59 		atomic_clear_bit(&backend->async.state,  in modem_backend_uart_async_event_handler()
68 		atomic_clear_bit(&backend->async.state,  in modem_backend_uart_async_event_handler()
75 		if (!atomic_test_and_set_bit(&backend->async.state,  in modem_backend_uart_async_event_handler()
77 			uart_rx_buf_rsp(backend->uart, backend->async.receive_bufs[0],  in modem_backend_uart_async_event_handler()
78 					backend->async.receive_buf_size);  in modem_backend_uart_async_event_handler()
83 		if (!atomic_test_and_set_bit(&backend->async.state,  in modem_backend_uart_async_event_handler()
85 			uart_rx_buf_rsp(backend->uart, backend->async.receive_bufs[1],  in modem_backend_uart_async_event_handler()
86 					backend->async.receive_buf_size);  in modem_backend_uart_async_event_handler()
95 		if (evt->data.rx_buf.buf == backend->async.receive_bufs[0]) {  in modem_backend_uart_async_event_handler()
96 			atomic_clear_bit(&backend->async.state,  in modem_backend_uart_async_event_handler()
102 		if (evt->data.rx_buf.buf == backend->async.receive_bufs[1]) {  in modem_backend_uart_async_event_handler()
103 			atomic_clear_bit(&backend->async.state,  in modem_backend_uart_async_event_handler()
113 		key = k_spin_lock(&backend->async.receive_rb_lock);  in modem_backend_uart_async_event_handler()
114 		received = ring_buf_put(&backend->async.receive_rb,  in modem_backend_uart_async_event_handler()
121 			ring_buf_reset(&backend->async.receive_rb);  in modem_backend_uart_async_event_handler()
122 			k_spin_unlock(&backend->async.receive_rb_lock, key);  in modem_backend_uart_async_event_handler()
129 		k_spin_unlock(&backend->async.receive_rb_lock, key);  in modem_backend_uart_async_event_handler()
134 		atomic_clear_bit(&backend->async.state,  in modem_backend_uart_async_event_handler()
147 		k_work_submit(&backend->async.rx_disabled_work);  in modem_backend_uart_async_event_handler()
156 	atomic_clear(&backend->async.state);  in modem_backend_uart_async_open()
157 	ring_buf_reset(&backend->async.receive_rb);  in modem_backend_uart_async_open()
159 	atomic_set_bit(&backend->async.state, MODEM_BACKEND_UART_ASYNC_STATE_RX_BUF0_USED_BIT);  in modem_backend_uart_async_open()
160 	atomic_set_bit(&backend->async.state, MODEM_BACKEND_UART_ASYNC_STATE_RECEIVING_BIT);  in modem_backend_uart_async_open()
161 	atomic_set_bit(&backend->async.state, MODEM_BACKEND_UART_ASYNC_STATE_OPEN_BIT);  in modem_backend_uart_async_open()
166 	ret = uart_rx_enable(backend->uart, backend->async.receive_bufs[0],  in modem_backend_uart_async_open()
167 			     backend->async.receive_buf_size,  in modem_backend_uart_async_open()
170 		atomic_clear(&backend->async.state);  in modem_backend_uart_async_open()
181 	return ring_buf_capacity_get(&backend->async.receive_rb);  in get_receive_buf_size()
200 	return backend->async.transmit_buf_size;  in get_transmit_buf_size()
210 	transmitting = atomic_test_and_set_bit(&backend->async.state,  in modem_backend_uart_async_transmit()
220 	memcpy(backend->async.transmit_buf, buf, bytes_to_transmit);  in modem_backend_uart_async_transmit()
222 	ret = uart_tx(backend->uart, backend->async.transmit_buf, bytes_to_transmit,  in modem_backend_uart_async_transmit()
231 			"start async transmit for", bytes_to_transmit, ret);  in modem_backend_uart_async_transmit()
245 	key = k_spin_lock(&backend->async.receive_rb_lock);  in modem_backend_uart_async_receive()
251 	received = ring_buf_get(&backend->async.receive_rb, buf, size);  in modem_backend_uart_async_receive()
252 	empty = ring_buf_is_empty(&backend->async.receive_rb);  in modem_backend_uart_async_receive()
253 	k_spin_unlock(&backend->async.receive_rb_lock, key);  in modem_backend_uart_async_receive()
266 	atomic_clear_bit(&backend->async.state, MODEM_BACKEND_UART_ASYNC_STATE_OPEN_BIT);  in modem_backend_uart_async_close()
287 	struct modem_backend_uart_async *async =  in modem_backend_uart_async_notify_closed()  local
291 		CONTAINER_OF(async, struct modem_backend_uart, async);  in modem_backend_uart_async_notify_closed()
319 	backend->async.receive_buf_size = receive_buf_size_quarter;  in modem_backend_uart_async_init()
320 	backend->async.receive_bufs[0] = &config->receive_buf[0];  in modem_backend_uart_async_init()
321 	backend->async.receive_bufs[1] = &config->receive_buf[receive_buf_size_quarter];  in modem_backend_uart_async_init()
324 	ring_buf_init(&backend->async.receive_rb, (receive_buf_size_quarter * 2),  in modem_backend_uart_async_init()
327 	backend->async.transmit_buf = config->transmit_buf;  in modem_backend_uart_async_init()
328 	backend->async.transmit_buf_size = config->transmit_buf_size;  in modem_backend_uart_async_init()
329 	k_work_init(&backend->async.rx_disabled_work, modem_backend_uart_async_notify_closed);  in modem_backend_uart_async_init()