136 	struct hci_uart *hu;  member
226 static void qca_power_shutdown(struct hci_uart *hu);
230 static enum qca_btsoc_type qca_soc_type(struct hci_uart *hu)  in qca_soc_type()  argument
234 	if (hu->serdev) {  in qca_soc_type()
235 		struct qca_serdev *qsd = serdev_device_get_drvdata(hu->serdev);  in qca_soc_type()
245 static const char *qca_get_firmware_name(struct hci_uart *hu)  in qca_get_firmware_name()  argument
247 	if (hu->serdev) {  in qca_get_firmware_name()
248 		struct qca_serdev *qsd = serdev_device_get_drvdata(hu->serdev);  in qca_get_firmware_name()
273 static void serial_clock_vote(unsigned long vote, struct hci_uart *hu)  in serial_clock_vote()  argument
275 	struct qca_data *qca = hu->priv;  in serial_clock_vote()
320 			__serial_clock_on(hu->tty);  in serial_clock_vote()
322 			__serial_clock_off(hu->tty);  in serial_clock_vote()
343 static int send_hci_ibs_cmd(u8 cmd, struct hci_uart *hu)  in send_hci_ibs_cmd()  argument
347 	struct qca_data *qca = hu->priv;  in send_hci_ibs_cmd()
349 	BT_DBG("hu %p send hci ibs cmd 0x%x", hu, cmd);  in send_hci_ibs_cmd()
369 	struct hci_uart *hu = qca->hu;  in qca_wq_awake_device()  local
373 	BT_DBG("hu %p wq awake device", hu);  in qca_wq_awake_device()
376 	serial_clock_vote(HCI_IBS_TX_VOTE_CLOCK_ON, hu);  in qca_wq_awake_device()
381 	if (send_hci_ibs_cmd(HCI_IBS_WAKE_IND, hu) < 0)  in qca_wq_awake_device()
393 	hci_uart_tx_wakeup(hu);  in qca_wq_awake_device()
400 	struct hci_uart *hu = qca->hu;  in qca_wq_awake_rx()  local
403 	BT_DBG("hu %p wq awake rx", hu);  in qca_wq_awake_rx()
405 	serial_clock_vote(HCI_IBS_RX_VOTE_CLOCK_ON, hu);  in qca_wq_awake_rx()
413 	if (send_hci_ibs_cmd(HCI_IBS_WAKE_ACK, hu) < 0)  in qca_wq_awake_rx()
421 	hci_uart_tx_wakeup(hu);  in qca_wq_awake_rx()
428 	struct hci_uart *hu = qca->hu;  in qca_wq_serial_rx_clock_vote_off()  local
430 	BT_DBG("hu %p rx clock vote off", hu);  in qca_wq_serial_rx_clock_vote_off()
432 	serial_clock_vote(HCI_IBS_RX_VOTE_CLOCK_OFF, hu);  in qca_wq_serial_rx_clock_vote_off()
439 	struct hci_uart *hu = qca->hu;  in qca_wq_serial_tx_clock_vote_off()  local
441 	BT_DBG("hu %p tx clock vote off", hu);  in qca_wq_serial_tx_clock_vote_off()
444 	hci_uart_tx_wakeup(hu);  in qca_wq_serial_tx_clock_vote_off()
449 	serial_clock_vote(HCI_IBS_TX_VOTE_CLOCK_OFF, hu);  in qca_wq_serial_tx_clock_vote_off()
455 	struct hci_uart *hu = qca->hu;  in hci_ibs_tx_idle_timeout()  local
458 	BT_DBG("hu %p idle timeout in %d state", hu, qca->tx_ibs_state);  in hci_ibs_tx_idle_timeout()
466 		if (send_hci_ibs_cmd(HCI_IBS_SLEEP_IND, hu) < 0) {  in hci_ibs_tx_idle_timeout()
488 	struct hci_uart *hu = qca->hu;  in hci_ibs_wake_retrans_timeout()  local
493 		hu, qca->tx_ibs_state);  in hci_ibs_wake_retrans_timeout()
508 		if (send_hci_ibs_cmd(HCI_IBS_WAKE_IND, hu) < 0) {  in hci_ibs_wake_retrans_timeout()
527 		hci_uart_tx_wakeup(hu);  in hci_ibs_wake_retrans_timeout()
535 	struct hci_uart *hu = qca->hu;  in qca_controller_memdump_timeout()  local
544 			hci_reset_dev(hu->hdev);  in qca_controller_memdump_timeout()
553 static int qca_open(struct hci_uart *hu)  in qca_open()  argument
558 	BT_DBG("hu %p qca_open", hu);  in qca_open()
560 	if (!hci_uart_has_flow_control(hu))  in qca_open()
588 	qca->hu = hu;  in qca_open()
597 	hu->priv = qca;  in qca_open()
599 	if (hu->serdev) {  in qca_open()
600 		qcadev = serdev_device_get_drvdata(hu->serdev);  in qca_open()
603 			hu->init_speed = qcadev->init_speed;  in qca_open()
606 			hu->oper_speed = qcadev->oper_speed;  in qca_open()
623 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_debugfs_init()  local
624 	struct qca_data *qca = hu->priv;  in qca_debugfs_init()
668 static int qca_flush(struct hci_uart *hu)  in qca_flush()  argument
670 	struct qca_data *qca = hu->priv;  in qca_flush()
672 	BT_DBG("hu %p qca flush", hu);  in qca_flush()
681 static int qca_close(struct hci_uart *hu)  in qca_close()  argument
683 	struct qca_data *qca = hu->priv;  in qca_close()
685 	BT_DBG("hu %p qca close", hu);  in qca_close()
687 	serial_clock_vote(HCI_IBS_VOTE_STATS_UPDATE, hu);  in qca_close()
695 	qca->hu = NULL;  in qca_close()
699 	hu->priv = NULL;  in qca_close()
708 static void device_want_to_wakeup(struct hci_uart *hu)  in device_want_to_wakeup()  argument
711 	struct qca_data *qca = hu->priv;  in device_want_to_wakeup()
713 	BT_DBG("hu %p want to wake up", hu);  in device_want_to_wakeup()
738 		if (send_hci_ibs_cmd(HCI_IBS_WAKE_ACK, hu) < 0) {  in device_want_to_wakeup()
755 	hci_uart_tx_wakeup(hu);  in device_want_to_wakeup()
760 static void device_want_to_sleep(struct hci_uart *hu)  in device_want_to_sleep()  argument
763 	struct qca_data *qca = hu->priv;  in device_want_to_sleep()
765 	BT_DBG("hu %p want to sleep in %d state", hu, qca->rx_ibs_state);  in device_want_to_sleep()
796 static void device_woke_up(struct hci_uart *hu)  in device_woke_up()  argument
799 	struct qca_data *qca = hu->priv;  in device_woke_up()
802 	BT_DBG("hu %p woke up", hu);  in device_woke_up()
843 	hci_uart_tx_wakeup(hu);  in device_woke_up()
849 static int qca_enqueue(struct hci_uart *hu, struct sk_buff *skb)  in qca_enqueue()  argument
852 	struct qca_data *qca = hu->priv;  in qca_enqueue()
854 	BT_DBG("hu %p qca enq skb %p tx_ibs_state %d", hu, skb,  in qca_enqueue()
859 		bt_dev_dbg(hu->hdev, "SSR is in progress");  in qca_enqueue()
919 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_ibs_sleep_ind()  local
921 	BT_DBG("hu %p recv hci ibs cmd 0x%x", hu, HCI_IBS_SLEEP_IND);  in qca_ibs_sleep_ind()
923 	device_want_to_sleep(hu);  in qca_ibs_sleep_ind()
931 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_ibs_wake_ind()  local
933 	BT_DBG("hu %p recv hci ibs cmd 0x%x", hu, HCI_IBS_WAKE_IND);  in qca_ibs_wake_ind()
935 	device_want_to_wakeup(hu);  in qca_ibs_wake_ind()
943 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_ibs_wake_ack()  local
945 	BT_DBG("hu %p recv hci ibs cmd 0x%x", hu, HCI_IBS_WAKE_ACK);  in qca_ibs_wake_ack()
947 	device_woke_up(hu);  in qca_ibs_wake_ack()
970 	struct hci_uart *hu = qca->hu;  in qca_controller_memdump()  local
980 	enum qca_btsoc_type soc_type = qca_soc_type(hu);  in qca_controller_memdump()
1023 				bt_dev_err(hu->hdev, "Rx invalid memdump size");  in qca_controller_memdump()
1031 			bt_dev_info(hu->hdev, "QCA collecting dump of size:%u",  in qca_controller_memdump()
1051 			bt_dev_err(hu->hdev, "QCA: Discarding other packets");  in qca_controller_memdump()
1070 			bt_dev_err(hu->hdev, "QCA controller missed packet:%d",  in qca_controller_memdump()
1075 				bt_dev_err(hu->hdev,  in qca_controller_memdump()
1090 				bt_dev_err(hu->hdev,  in qca_controller_memdump()
1093 			bt_dev_dbg(hu->hdev,  in qca_controller_memdump()
1103 			bt_dev_err(hu->hdev,  in qca_controller_memdump()
1110 			bt_dev_info(hu->hdev,  in qca_controller_memdump()
1115 			dev_coredumpv(&hu->serdev->dev, memdump_buf,  in qca_controller_memdump()
1132 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_controller_memdump_event()  local
1133 	struct qca_data *qca = hu->priv;  in qca_controller_memdump_event()
1144 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_recv_event()  local
1145 	struct qca_data *qca = hu->priv;  in qca_recv_event()
1209 static int qca_recv(struct hci_uart *hu, const void *data, int count)  in qca_recv()  argument
1211 	struct qca_data *qca = hu->priv;  in qca_recv()
1213 	if (!test_bit(HCI_UART_REGISTERED, &hu->flags))  in qca_recv()
1216 	qca->rx_skb = h4_recv_buf(hu->hdev, qca->rx_skb, data, count,  in qca_recv()
1220 		bt_dev_err(hu->hdev, "Frame reassembly failed (%d)", err);  in qca_recv()
1228 static struct sk_buff *qca_dequeue(struct hci_uart *hu)  in qca_dequeue()  argument
1230 	struct qca_data *qca = hu->priv;  in qca_dequeue()
1273 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_set_baudrate()  local
1274 	struct qca_data *qca = hu->priv;  in qca_set_baudrate()
1294 	hci_uart_tx_wakeup(hu);  in qca_set_baudrate()
1301 	if (hu->serdev)  in qca_set_baudrate()
1302 		serdev_device_wait_until_sent(hu->serdev,  in qca_set_baudrate()
1306 	if (qca_is_wcn399x(qca_soc_type(hu)))  in qca_set_baudrate()
1314 static inline void host_set_baudrate(struct hci_uart *hu, unsigned int speed)  in host_set_baudrate()  argument
1316 	if (hu->serdev)  in host_set_baudrate()
1317 		serdev_device_set_baudrate(hu->serdev, speed);  in host_set_baudrate()
1319 		hci_uart_set_baudrate(hu, speed);  in host_set_baudrate()
1322 static int qca_send_power_pulse(struct hci_uart *hu, bool on)  in qca_send_power_pulse()  argument
1338 	bt_dev_dbg(hu->hdev, "sending power pulse %02x to controller", cmd);  in qca_send_power_pulse()
1340 	serdev_device_write_flush(hu->serdev);  in qca_send_power_pulse()
1341 	hci_uart_set_flow_control(hu, true);  in qca_send_power_pulse()
1342 	ret = serdev_device_write_buf(hu->serdev, &cmd, sizeof(cmd));  in qca_send_power_pulse()
1344 		bt_dev_err(hu->hdev, "failed to send power pulse %02x", cmd);  in qca_send_power_pulse()
1348 	serdev_device_wait_until_sent(hu->serdev, timeout);  in qca_send_power_pulse()
1349 	hci_uart_set_flow_control(hu, false);  in qca_send_power_pulse()
1360 static unsigned int qca_get_speed(struct hci_uart *hu,  in qca_get_speed()  argument
1366 		if (hu->init_speed)  in qca_get_speed()
1367 			speed = hu->init_speed;  in qca_get_speed()
1368 		else if (hu->proto->init_speed)  in qca_get_speed()
1369 			speed = hu->proto->init_speed;  in qca_get_speed()
1371 		if (hu->oper_speed)  in qca_get_speed()
1372 			speed = hu->oper_speed;  in qca_get_speed()
1373 		else if (hu->proto->oper_speed)  in qca_get_speed()
1374 			speed = hu->proto->oper_speed;  in qca_get_speed()
1380 static int qca_check_speeds(struct hci_uart *hu)  in qca_check_speeds()  argument
1382 	if (qca_is_wcn399x(qca_soc_type(hu))) {  in qca_check_speeds()
1383 		if (!qca_get_speed(hu, QCA_INIT_SPEED) &&  in qca_check_speeds()
1384 		    !qca_get_speed(hu, QCA_OPER_SPEED))  in qca_check_speeds()
1387 		if (!qca_get_speed(hu, QCA_INIT_SPEED) ||  in qca_check_speeds()
1388 		    !qca_get_speed(hu, QCA_OPER_SPEED))  in qca_check_speeds()
1395 static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)  in qca_set_speed()  argument
1398 	struct qca_data *qca = hu->priv;  in qca_set_speed()
1402 		speed = qca_get_speed(hu, QCA_INIT_SPEED);  in qca_set_speed()
1404 			host_set_baudrate(hu, speed);  in qca_set_speed()
1406 		enum qca_btsoc_type soc_type = qca_soc_type(hu);  in qca_set_speed()
1408 		speed = qca_get_speed(hu, QCA_OPER_SPEED);  in qca_set_speed()
1416 			hci_uart_set_flow_control(hu, true);  in qca_set_speed()
1424 		bt_dev_dbg(hu->hdev, "Set UART speed to %d", speed);  in qca_set_speed()
1425 		ret = qca_set_baudrate(hu->hdev, qca_baudrate);  in qca_set_speed()
1429 		host_set_baudrate(hu, speed);  in qca_set_speed()
1433 			hci_uart_set_flow_control(hu, false);  in qca_set_speed()
1441 				bt_dev_err(hu->hdev,  in qca_set_speed()
1453 static int qca_send_crashbuffer(struct hci_uart *hu)  in qca_send_crashbuffer()  argument
1455 	struct qca_data *qca = hu->priv;  in qca_send_crashbuffer()
1460 		bt_dev_err(hu->hdev, "Failed to allocate memory for skb packet");  in qca_send_crashbuffer()
1471 	bt_dev_info(hu->hdev, "crash the soc to collect controller dump");  in qca_send_crashbuffer()
1473 	hci_uart_tx_wakeup(hu);  in qca_send_crashbuffer()
1480 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_wait_for_dump_collection()  local
1481 	struct qca_data *qca = hu->priv;  in qca_wait_for_dump_collection()
1491 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_hw_error()  local
1492 	struct qca_data *qca = hu->priv;  in qca_hw_error()
1506 		qca_send_crashbuffer(hu);  in qca_hw_error()
1518 		bt_dev_err(hu->hdev, "clearing allocated memory due to memdump timeout");  in qca_hw_error()
1540 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_cmd_timeout()  local
1541 	struct qca_data *qca = hu->priv;  in qca_cmd_timeout()
1546 		qca_send_crashbuffer(hu);  in qca_cmd_timeout()
1563 			hci_reset_dev(hu->hdev);  in qca_cmd_timeout()
1569 static int qca_wcn3990_init(struct hci_uart *hu)  in qca_wcn3990_init()  argument
1577 	qcadev = serdev_device_get_drvdata(hu->serdev);  in qca_wcn3990_init()
1579 		serdev_device_close(hu->serdev);  in qca_wcn3990_init()
1584 		ret = serdev_device_open(hu->serdev);  in qca_wcn3990_init()
1586 			bt_dev_err(hu->hdev, "failed to open port");  in qca_wcn3990_init()
1592 	host_set_baudrate(hu, 2400);  in qca_wcn3990_init()
1593 	ret = qca_send_power_pulse(hu, false);  in qca_wcn3990_init()
1597 	qca_set_speed(hu, QCA_INIT_SPEED);  in qca_wcn3990_init()
1598 	ret = qca_send_power_pulse(hu, true);  in qca_wcn3990_init()
1607 	serdev_device_close(hu->serdev);  in qca_wcn3990_init()
1608 	ret = serdev_device_open(hu->serdev);  in qca_wcn3990_init()
1610 		bt_dev_err(hu->hdev, "failed to open port");  in qca_wcn3990_init()
1614 	hci_uart_set_flow_control(hu, false);  in qca_wcn3990_init()
1621 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_power_on()  local
1622 	enum qca_btsoc_type soc_type = qca_soc_type(hu);  in qca_power_on()
1629 	if (!hu->serdev)  in qca_power_on()
1633 		ret = qca_wcn3990_init(hu);  in qca_power_on()
1635 		qcadev = serdev_device_get_drvdata(hu->serdev);  in qca_power_on()
1646 static int qca_setup(struct hci_uart *hu)  in qca_setup()  argument
1648 	struct hci_dev *hdev = hu->hdev;  in qca_setup()
1649 	struct qca_data *qca = hu->priv;  in qca_setup()
1652 	enum qca_btsoc_type soc_type = qca_soc_type(hu);  in qca_setup()
1653 	const char *firmware_name = qca_get_firmware_name(hu);  in qca_setup()
1657 	ret = qca_check_speeds(hu);  in qca_setup()
1688 		qca_set_speed(hu, QCA_INIT_SPEED);  in qca_setup()
1692 	speed = qca_get_speed(hu, QCA_OPER_SPEED);  in qca_setup()
1694 		ret = qca_set_speed(hu, QCA_OPER_SPEED);  in qca_setup()
1715 		hu->hdev->hw_error = qca_hw_error;  in qca_setup()
1716 		hu->hdev->cmd_timeout = qca_cmd_timeout;  in qca_setup()
1728 			qca_power_shutdown(hu);  in qca_setup()
1729 			if (hu->serdev) {  in qca_setup()
1730 				serdev_device_close(hu->serdev);  in qca_setup()
1731 				ret = serdev_device_open(hu->serdev);  in qca_setup()
1744 		hu->hdev->set_bdaddr = qca_set_bdaddr_rome;  in qca_setup()
1746 		hu->hdev->set_bdaddr = qca_set_bdaddr;  in qca_setup()
1805 static void qca_power_shutdown(struct hci_uart *hu)  in qca_power_shutdown()  argument
1808 	struct qca_data *qca = hu->priv;  in qca_power_shutdown()
1810 	enum qca_btsoc_type soc_type = qca_soc_type(hu);  in qca_power_shutdown()
1818 	qca_flush(hu);  in qca_power_shutdown()
1824 	if (!hu->serdev)  in qca_power_shutdown()
1827 	qcadev = serdev_device_get_drvdata(hu->serdev);  in qca_power_shutdown()
1830 		host_set_baudrate(hu, 2400);  in qca_power_shutdown()
1831 		qca_send_power_pulse(hu, false);  in qca_power_shutdown()
1840 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_power_off()  local
1841 	struct qca_data *qca = hu->priv;  in qca_power_off()
1842 	enum qca_btsoc_type soc_type = qca_soc_type(hu);  in qca_power_off()
1844 	hu->hdev->hw_error = NULL;  in qca_power_off()
1845 	hu->hdev->cmd_timeout = NULL;  in qca_power_off()
1857 	qca_power_shutdown(hu);  in qca_power_off()
2090 	struct hci_uart *hu = &qcadev->serdev_hu;  in qca_suspend()  local
2091 	struct qca_data *qca = hu->priv;  in qca_suspend()
2116 		serdev_device_write_flush(hu->serdev);  in qca_suspend()
2118 		ret = serdev_device_write_buf(hu->serdev, &cmd, sizeof(cmd));  in qca_suspend()
2145 		serdev_device_wait_until_sent(hu->serdev,  in qca_suspend()
2147 		serial_clock_vote(HCI_IBS_TX_VOTE_CLOCK_OFF, hu);  in qca_suspend()
2173 	struct hci_uart *hu = &qcadev->serdev_hu;  in qca_resume()  local
2174 	struct qca_data *qca = hu->priv;  in qca_resume()