83 	struct hci_uart *hu;  member
165 static int qca_power_setup(struct hci_uart *hu, bool on);
166 static void qca_power_shutdown(struct hci_uart *hu);
169 static enum qca_btsoc_type qca_soc_type(struct hci_uart *hu)  in qca_soc_type()  argument
173 	if (hu->serdev) {  in qca_soc_type()
174 		struct qca_serdev *qsd = serdev_device_get_drvdata(hu->serdev);  in qca_soc_type()
184 static const char *qca_get_firmware_name(struct hci_uart *hu)  in qca_get_firmware_name()  argument
186 	if (hu->serdev) {  in qca_get_firmware_name()
187 		struct qca_serdev *qsd = serdev_device_get_drvdata(hu->serdev);  in qca_get_firmware_name()
212 static void serial_clock_vote(unsigned long vote, struct hci_uart *hu)  in serial_clock_vote()  argument
214 	struct qca_data *qca = hu->priv;  in serial_clock_vote()
261 			__serial_clock_on(hu->tty);  in serial_clock_vote()
263 			__serial_clock_off(hu->tty);  in serial_clock_vote()
284 static int send_hci_ibs_cmd(u8 cmd, struct hci_uart *hu)  in send_hci_ibs_cmd()  argument
288 	struct qca_data *qca = hu->priv;  in send_hci_ibs_cmd()
290 	BT_DBG("hu %p send hci ibs cmd 0x%x", hu, cmd);  in send_hci_ibs_cmd()
310 	struct hci_uart *hu = qca->hu;  in qca_wq_awake_device()  local
314 	BT_DBG("hu %p wq awake device", hu);  in qca_wq_awake_device()
317 	serial_clock_vote(HCI_IBS_TX_VOTE_CLOCK_ON, hu);  in qca_wq_awake_device()
322 	if (send_hci_ibs_cmd(HCI_IBS_WAKE_IND, hu) < 0)  in qca_wq_awake_device()
334 	hci_uart_tx_wakeup(hu);  in qca_wq_awake_device()
341 	struct hci_uart *hu = qca->hu;  in qca_wq_awake_rx()  local
344 	BT_DBG("hu %p wq awake rx", hu);  in qca_wq_awake_rx()
346 	serial_clock_vote(HCI_IBS_RX_VOTE_CLOCK_ON, hu);  in qca_wq_awake_rx()
354 	if (send_hci_ibs_cmd(HCI_IBS_WAKE_ACK, hu) < 0)  in qca_wq_awake_rx()
362 	hci_uart_tx_wakeup(hu);  in qca_wq_awake_rx()
369 	struct hci_uart *hu = qca->hu;  in qca_wq_serial_rx_clock_vote_off()  local
371 	BT_DBG("hu %p rx clock vote off", hu);  in qca_wq_serial_rx_clock_vote_off()
373 	serial_clock_vote(HCI_IBS_RX_VOTE_CLOCK_OFF, hu);  in qca_wq_serial_rx_clock_vote_off()
380 	struct hci_uart *hu = qca->hu;  in qca_wq_serial_tx_clock_vote_off()  local
382 	BT_DBG("hu %p tx clock vote off", hu);  in qca_wq_serial_tx_clock_vote_off()
385 	hci_uart_tx_wakeup(hu);  in qca_wq_serial_tx_clock_vote_off()
390 	serial_clock_vote(HCI_IBS_TX_VOTE_CLOCK_OFF, hu);  in qca_wq_serial_tx_clock_vote_off()
396 	struct hci_uart *hu = qca->hu;  in hci_ibs_tx_idle_timeout()  local
399 	BT_DBG("hu %p idle timeout in %d state", hu, qca->tx_ibs_state);  in hci_ibs_tx_idle_timeout()
407 		if (send_hci_ibs_cmd(HCI_IBS_SLEEP_IND, hu) < 0) {  in hci_ibs_tx_idle_timeout()
431 	struct hci_uart *hu = qca->hu;  in hci_ibs_wake_retrans_timeout()  local
436 		hu, qca->tx_ibs_state);  in hci_ibs_wake_retrans_timeout()
445 		if (send_hci_ibs_cmd(HCI_IBS_WAKE_IND, hu) < 0) {  in hci_ibs_wake_retrans_timeout()
466 		hci_uart_tx_wakeup(hu);  in hci_ibs_wake_retrans_timeout()
470 static int qca_open(struct hci_uart *hu)  in qca_open()  argument
476 	BT_DBG("hu %p qca_open", hu);  in qca_open()
478 	if (!hci_uart_has_flow_control(hu))  in qca_open()
500 	qca->hu = hu;  in qca_open()
509 	hu->priv = qca;  in qca_open()
511 	if (hu->serdev) {  in qca_open()
513 		qcadev = serdev_device_get_drvdata(hu->serdev);  in qca_open()
519 			hu->init_speed = qcadev->init_speed;  in qca_open()
520 			hu->oper_speed = qcadev->oper_speed;  in qca_open()
521 			ret = qca_power_setup(hu, true);  in qca_open()
525 				hu->priv = NULL;  in qca_open()
546 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_debugfs_init()  local
547 	struct qca_data *qca = hu->priv;  in qca_debugfs_init()
591 static int qca_flush(struct hci_uart *hu)  in qca_flush()  argument
593 	struct qca_data *qca = hu->priv;  in qca_flush()
595 	BT_DBG("hu %p qca flush", hu);  in qca_flush()
604 static int qca_close(struct hci_uart *hu)  in qca_close()  argument
607 	struct qca_data *qca = hu->priv;  in qca_close()
609 	BT_DBG("hu %p qca close", hu);  in qca_close()
611 	serial_clock_vote(HCI_IBS_VOTE_STATS_UPDATE, hu);  in qca_close()
618 	qca->hu = NULL;  in qca_close()
620 	if (hu->serdev) {  in qca_close()
621 		qcadev = serdev_device_get_drvdata(hu->serdev);  in qca_close()
623 			qca_power_shutdown(hu);  in qca_close()
631 	hu->priv = NULL;  in qca_close()
640 static void device_want_to_wakeup(struct hci_uart *hu)  in device_want_to_wakeup()  argument
643 	struct qca_data *qca = hu->priv;  in device_want_to_wakeup()
645 	BT_DBG("hu %p want to wake up", hu);  in device_want_to_wakeup()
664 		if (send_hci_ibs_cmd(HCI_IBS_WAKE_ACK, hu) < 0) {  in device_want_to_wakeup()
681 	hci_uart_tx_wakeup(hu);  in device_want_to_wakeup()
686 static void device_want_to_sleep(struct hci_uart *hu)  in device_want_to_sleep()  argument
689 	struct qca_data *qca = hu->priv;  in device_want_to_sleep()
691 	BT_DBG("hu %p want to sleep in %d state", hu, qca->rx_ibs_state);  in device_want_to_sleep()
720 static void device_woke_up(struct hci_uart *hu)  in device_woke_up()  argument
723 	struct qca_data *qca = hu->priv;  in device_woke_up()
726 	BT_DBG("hu %p woke up", hu);  in device_woke_up()
763 	hci_uart_tx_wakeup(hu);  in device_woke_up()
769 static int qca_enqueue(struct hci_uart *hu, struct sk_buff *skb)  in qca_enqueue()  argument
772 	struct qca_data *qca = hu->priv;  in qca_enqueue()
774 	BT_DBG("hu %p qca enq skb %p tx_ibs_state %d", hu, skb,  in qca_enqueue()
830 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_ibs_sleep_ind()  local
832 	BT_DBG("hu %p recv hci ibs cmd 0x%x", hu, HCI_IBS_SLEEP_IND);  in qca_ibs_sleep_ind()
834 	device_want_to_sleep(hu);  in qca_ibs_sleep_ind()
842 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_ibs_wake_ind()  local
844 	BT_DBG("hu %p recv hci ibs cmd 0x%x", hu, HCI_IBS_WAKE_IND);  in qca_ibs_wake_ind()
846 	device_want_to_wakeup(hu);  in qca_ibs_wake_ind()
854 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_ibs_wake_ack()  local
856 	BT_DBG("hu %p recv hci ibs cmd 0x%x", hu, HCI_IBS_WAKE_ACK);  in qca_ibs_wake_ack()
858 	device_woke_up(hu);  in qca_ibs_wake_ack()
879 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_recv_event()  local
880 	struct qca_data *qca = hu->priv;  in qca_recv_event()
936 static int qca_recv(struct hci_uart *hu, const void *data, int count)  in qca_recv()  argument
938 	struct qca_data *qca = hu->priv;  in qca_recv()
940 	if (!test_bit(HCI_UART_REGISTERED, &hu->flags))  in qca_recv()
943 	qca->rx_skb = h4_recv_buf(hu->hdev, qca->rx_skb, data, count,  in qca_recv()
947 		bt_dev_err(hu->hdev, "Frame reassembly failed (%d)", err);  in qca_recv()
955 static struct sk_buff *qca_dequeue(struct hci_uart *hu)  in qca_dequeue()  argument
957 	struct qca_data *qca = hu->priv;  in qca_dequeue()
1000 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_set_baudrate()  local
1001 	struct qca_data *qca = hu->priv;  in qca_set_baudrate()
1021 	hci_uart_tx_wakeup(hu);  in qca_set_baudrate()
1028 	if (hu->serdev)  in qca_set_baudrate()
1029 		serdev_device_wait_until_sent(hu->serdev,  in qca_set_baudrate()
1033 	if (qca_is_wcn399x(qca_soc_type(hu)))  in qca_set_baudrate()
1041 static inline void host_set_baudrate(struct hci_uart *hu, unsigned int speed)  in host_set_baudrate()  argument
1043 	if (hu->serdev)  in host_set_baudrate()
1044 		serdev_device_set_baudrate(hu->serdev, speed);  in host_set_baudrate()
1046 		hci_uart_set_baudrate(hu, speed);  in host_set_baudrate()
1049 static int qca_send_power_pulse(struct hci_uart *hu, bool on)  in qca_send_power_pulse()  argument
1065 	bt_dev_dbg(hu->hdev, "sending power pulse %02x to controller", cmd);  in qca_send_power_pulse()
1067 	serdev_device_write_flush(hu->serdev);  in qca_send_power_pulse()
1068 	hci_uart_set_flow_control(hu, true);  in qca_send_power_pulse()
1069 	ret = serdev_device_write_buf(hu->serdev, &cmd, sizeof(cmd));  in qca_send_power_pulse()
1071 		bt_dev_err(hu->hdev, "failed to send power pulse %02x", cmd);  in qca_send_power_pulse()
1075 	serdev_device_wait_until_sent(hu->serdev, timeout);  in qca_send_power_pulse()
1076 	hci_uart_set_flow_control(hu, false);  in qca_send_power_pulse()
1087 static unsigned int qca_get_speed(struct hci_uart *hu,  in qca_get_speed()  argument
1093 		if (hu->init_speed)  in qca_get_speed()
1094 			speed = hu->init_speed;  in qca_get_speed()
1095 		else if (hu->proto->init_speed)  in qca_get_speed()
1096 			speed = hu->proto->init_speed;  in qca_get_speed()
1098 		if (hu->oper_speed)  in qca_get_speed()
1099 			speed = hu->oper_speed;  in qca_get_speed()
1100 		else if (hu->proto->oper_speed)  in qca_get_speed()
1101 			speed = hu->proto->oper_speed;  in qca_get_speed()
1107 static int qca_check_speeds(struct hci_uart *hu)  in qca_check_speeds()  argument
1109 	if (qca_is_wcn399x(qca_soc_type(hu))) {  in qca_check_speeds()
1110 		if (!qca_get_speed(hu, QCA_INIT_SPEED) &&  in qca_check_speeds()
1111 		    !qca_get_speed(hu, QCA_OPER_SPEED))  in qca_check_speeds()
1114 		if (!qca_get_speed(hu, QCA_INIT_SPEED) ||  in qca_check_speeds()
1115 		    !qca_get_speed(hu, QCA_OPER_SPEED))  in qca_check_speeds()
1122 static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)  in qca_set_speed()  argument
1125 	struct qca_data *qca = hu->priv;  in qca_set_speed()
1129 		speed = qca_get_speed(hu, QCA_INIT_SPEED);  in qca_set_speed()
1131 			host_set_baudrate(hu, speed);  in qca_set_speed()
1133 		enum qca_btsoc_type soc_type = qca_soc_type(hu);  in qca_set_speed()
1135 		speed = qca_get_speed(hu, QCA_OPER_SPEED);  in qca_set_speed()
1143 			hci_uart_set_flow_control(hu, true);  in qca_set_speed()
1151 		bt_dev_dbg(hu->hdev, "Set UART speed to %d", speed);  in qca_set_speed()
1152 		ret = qca_set_baudrate(hu->hdev, qca_baudrate);  in qca_set_speed()
1156 		host_set_baudrate(hu, speed);  in qca_set_speed()
1160 			hci_uart_set_flow_control(hu, false);  in qca_set_speed()
1168 				bt_dev_err(hu->hdev,  in qca_set_speed()
1180 static int qca_wcn3990_init(struct hci_uart *hu)  in qca_wcn3990_init()  argument
1188 	qcadev = serdev_device_get_drvdata(hu->serdev);  in qca_wcn3990_init()
1190 		serdev_device_close(hu->serdev);  in qca_wcn3990_init()
1191 		ret = qca_power_setup(hu, true);  in qca_wcn3990_init()
1195 		ret = serdev_device_open(hu->serdev);  in qca_wcn3990_init()
1197 			bt_dev_err(hu->hdev, "failed to open port");  in qca_wcn3990_init()
1203 	host_set_baudrate(hu, 2400);  in qca_wcn3990_init()
1204 	ret = qca_send_power_pulse(hu, false);  in qca_wcn3990_init()
1208 	qca_set_speed(hu, QCA_INIT_SPEED);  in qca_wcn3990_init()
1209 	ret = qca_send_power_pulse(hu, true);  in qca_wcn3990_init()
1218 	serdev_device_close(hu->serdev);  in qca_wcn3990_init()
1219 	ret = serdev_device_open(hu->serdev);  in qca_wcn3990_init()
1221 		bt_dev_err(hu->hdev, "failed to open port");  in qca_wcn3990_init()
1225 	hci_uart_set_flow_control(hu, false);  in qca_wcn3990_init()
1230 static int qca_setup(struct hci_uart *hu)  in qca_setup()  argument
1232 	struct hci_dev *hdev = hu->hdev;  in qca_setup()
1233 	struct qca_data *qca = hu->priv;  in qca_setup()
1235 	enum qca_btsoc_type soc_type = qca_soc_type(hu);  in qca_setup()
1236 	const char *firmware_name = qca_get_firmware_name(hu);  in qca_setup()
1240 	ret = qca_check_speeds(hu);  in qca_setup()
1260 		hu->hdev->shutdown = qca_power_off;  in qca_setup()
1261 		ret = qca_wcn3990_init(hu);  in qca_setup()
1270 		qca_set_speed(hu, QCA_INIT_SPEED);  in qca_setup()
1274 	speed = qca_get_speed(hu, QCA_OPER_SPEED);  in qca_setup()
1276 		ret = qca_set_speed(hu, QCA_OPER_SPEED);  in qca_setup()
1310 		hu->hdev->set_bdaddr = qca_set_bdaddr;  in qca_setup()
1312 		hu->hdev->set_bdaddr = qca_set_bdaddr_rome;  in qca_setup()
1354 static void qca_power_shutdown(struct hci_uart *hu)  in qca_power_shutdown()  argument
1356 	struct qca_data *qca = hu->priv;  in qca_power_shutdown()
1365 	qca_flush(hu);  in qca_power_shutdown()
1368 	host_set_baudrate(hu, 2400);  in qca_power_shutdown()
1369 	qca_send_power_pulse(hu, false);  in qca_power_shutdown()
1370 	qca_power_setup(hu, false);  in qca_power_shutdown()
1375 	struct hci_uart *hu = hci_get_drvdata(hdev);  in qca_power_off()  local
1382 	qca_power_shutdown(hu);  in qca_power_off()
1417 static int qca_power_setup(struct hci_uart *hu, bool on)  in qca_power_setup()  argument
1424 	qcadev = serdev_device_get_drvdata(hu->serdev);  in qca_power_setup()