241 	struct cypress_private *priv;  in analyze_baud_rate()  local
242 	priv = usb_get_serial_port_data(port);  in analyze_baud_rate()
275 	switch (priv->chiptype) {  in analyze_baud_rate()
301 	struct cypress_private *priv;  in cypress_serial_control()  local
307 	priv = usb_get_serial_port_data(port);  in cypress_serial_control()
309 	if (!priv->comm_is_ok)  in cypress_serial_control()
319 		new_baudrate = priv->baud_rate;  in cypress_serial_control()
320 		if (baud_rate && baud_rate != priv->baud_rate) {  in cypress_serial_control()
367 			spin_lock_irqsave(&priv->lock, flags);  in cypress_serial_control()
368 			priv->baud_rate = new_baudrate;  in cypress_serial_control()
369 			priv->current_config = feature_buffer[4];  in cypress_serial_control()
370 			spin_unlock_irqrestore(&priv->lock, flags);  in cypress_serial_control()
378 		if (priv->get_cfg_unsafe) {  in cypress_serial_control()
405 			spin_lock_irqsave(&priv->lock, flags);  in cypress_serial_control()
408 			priv->current_config = feature_buffer[4];  in cypress_serial_control()
409 			priv->baud_rate = get_unaligned_le32(feature_buffer);  in cypress_serial_control()
410 			spin_unlock_irqrestore(&priv->lock, flags);  in cypress_serial_control()
413 	spin_lock_irqsave(&priv->lock, flags);  in cypress_serial_control()
414 	++priv->cmd_count;  in cypress_serial_control()
415 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_serial_control()
424 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_set_dead()  local
427 	spin_lock_irqsave(&priv->lock, flags);  in cypress_set_dead()
428 	if (!priv->comm_is_ok) {  in cypress_set_dead()
429 		spin_unlock_irqrestore(&priv->lock, flags);  in cypress_set_dead()
432 	priv->comm_is_ok = 0;  in cypress_set_dead()
433 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_set_dead()
448 	struct cypress_private *priv;  in cypress_generic_port_probe()  local
455 	priv = kzalloc(sizeof(struct cypress_private), GFP_KERNEL);  in cypress_generic_port_probe()
456 	if (!priv)  in cypress_generic_port_probe()
459 	priv->comm_is_ok = !0;  in cypress_generic_port_probe()
460 	spin_lock_init(&priv->lock);  in cypress_generic_port_probe()
461 	if (kfifo_alloc(&priv->write_fifo, CYPRESS_BUF_SIZE, GFP_KERNEL)) {  in cypress_generic_port_probe()
462 		kfree(priv);  in cypress_generic_port_probe()
472 	priv->cmd_ctrl = 0;  in cypress_generic_port_probe()
473 	priv->line_control = 0;  in cypress_generic_port_probe()
474 	priv->termios_initialized = 0;  in cypress_generic_port_probe()
475 	priv->rx_flags = 0;  in cypress_generic_port_probe()
483 		priv->pkt_fmt = packet_format_1;  in cypress_generic_port_probe()
485 		priv->pkt_fmt = packet_format_2;  in cypress_generic_port_probe()
488 		priv->write_urb_interval = interval;  in cypress_generic_port_probe()
489 		priv->read_urb_interval = interval;  in cypress_generic_port_probe()
493 		priv->write_urb_interval = port->interrupt_out_urb->interval;  in cypress_generic_port_probe()
494 		priv->read_urb_interval = port->interrupt_in_urb->interval;  in cypress_generic_port_probe()
496 			__func__, priv->read_urb_interval,  in cypress_generic_port_probe()
497 			priv->write_urb_interval);  in cypress_generic_port_probe()
499 	usb_set_serial_port_data(port, priv);  in cypress_generic_port_probe()
510 	struct cypress_private *priv;  in cypress_earthmate_port_probe()  local
519 	priv = usb_get_serial_port_data(port);  in cypress_earthmate_port_probe()
520 	priv->chiptype = CT_EARTHMATE;  in cypress_earthmate_port_probe()
523 	priv->pkt_fmt = packet_format_1;  in cypress_earthmate_port_probe()
533 		priv->get_cfg_unsafe = !0;  in cypress_earthmate_port_probe()
541 	struct cypress_private *priv;  in cypress_hidcom_port_probe()  local
550 	priv = usb_get_serial_port_data(port);  in cypress_hidcom_port_probe()
551 	priv->chiptype = CT_CYPHIDCOM;  in cypress_hidcom_port_probe()
558 	struct cypress_private *priv;  in cypress_ca42v2_port_probe()  local
567 	priv = usb_get_serial_port_data(port);  in cypress_ca42v2_port_probe()
568 	priv->chiptype = CT_CA42V2;  in cypress_ca42v2_port_probe()
575 	struct cypress_private *priv;  in cypress_port_remove()  local
577 	priv = usb_get_serial_port_data(port);  in cypress_port_remove()
579 	kfifo_free(&priv->write_fifo);  in cypress_port_remove()
580 	kfree(priv);  in cypress_port_remove()
587 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_open()  local
592 	if (!priv->comm_is_ok)  in cypress_open()
599 	spin_lock_irqsave(&priv->lock, flags);  in cypress_open()
601 	priv->bytes_in = 0;  in cypress_open()
602 	priv->bytes_out = 0;  in cypress_open()
603 	priv->cmd_count = 0;  in cypress_open()
604 	priv->rx_flags = 0;  in cypress_open()
605 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_open()
611 		cypress_set_termios(tty, port, &priv->tmp_termios);  in cypress_open()
618 		cypress_read_int_callback, port, priv->read_urb_interval);  in cypress_open()
633 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_dtr_rts()  local
635 	spin_lock_irq(&priv->lock);  in cypress_dtr_rts()
637 		priv->line_control = 0;  in cypress_dtr_rts()
639 		priv->line_control = CONTROL_DTR | CONTROL_RTS;  in cypress_dtr_rts()
640 	priv->cmd_ctrl = 1;  in cypress_dtr_rts()
641 	spin_unlock_irq(&priv->lock);  in cypress_dtr_rts()
647 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_close()  local
650 	spin_lock_irqsave(&priv->lock, flags);  in cypress_close()
651 	kfifo_reset_out(&priv->write_fifo);  in cypress_close()
652 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_close()
660 			priv->bytes_in, priv->bytes_out, priv->cmd_count);  in cypress_close()
667 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_write()  local
674 	if (priv->cmd_ctrl) {  in cypress_write()
682 	count = kfifo_in_locked(&priv->write_fifo, buf, count, &priv->lock);  in cypress_write()
694 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_send()  local
698 	if (!priv->comm_is_ok)  in cypress_send()
704 	spin_lock_irqsave(&priv->lock, flags);  in cypress_send()
705 	if (priv->write_urb_in_use) {  in cypress_send()
707 		spin_unlock_irqrestore(&priv->lock, flags);  in cypress_send()
710 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_send()
716 	spin_lock_irqsave(&priv->lock, flags);  in cypress_send()
717 	switch (priv->pkt_fmt) {  in cypress_send()
722 		port->interrupt_out_buffer[0] = priv->line_control;  in cypress_send()
727 		port->interrupt_out_buffer[0] = priv->line_control;  in cypress_send()
731 	if (priv->line_control & CONTROL_RESET)  in cypress_send()
732 		priv->line_control &= ~CONTROL_RESET;  in cypress_send()
734 	if (priv->cmd_ctrl) {  in cypress_send()
735 		priv->cmd_count++;  in cypress_send()
737 		spin_unlock_irqrestore(&priv->lock, flags);  in cypress_send()
740 		spin_unlock_irqrestore(&priv->lock, flags);  in cypress_send()
742 	count = kfifo_out_locked(&priv->write_fifo,  in cypress_send()
745 					&priv->lock);  in cypress_send()
749 	switch (priv->pkt_fmt) {  in cypress_send()
761 	spin_lock_irqsave(&priv->lock, flags);  in cypress_send()
762 	priv->write_urb_in_use = 1;  in cypress_send()
763 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_send()
765 	if (priv->cmd_ctrl)  in cypress_send()
769 			      (priv->pkt_fmt == packet_format_1 ? 2 : 1);  in cypress_send()
777 		cypress_write_int_callback, port, priv->write_urb_interval);  in cypress_send()
783 		priv->write_urb_in_use = 0;  in cypress_send()
787 	spin_lock_irqsave(&priv->lock, flags);  in cypress_send()
788 	if (priv->cmd_ctrl)  in cypress_send()
789 		priv->cmd_ctrl = 0;  in cypress_send()
792 	priv->bytes_out += count;  in cypress_send()
793 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_send()
803 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_write_room()  local
807 	spin_lock_irqsave(&priv->lock, flags);  in cypress_write_room()
808 	room = kfifo_avail(&priv->write_fifo);  in cypress_write_room()
809 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_write_room()
819 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_tiocmget()  local
824 	spin_lock_irqsave(&priv->lock, flags);  in cypress_tiocmget()
825 	control = priv->line_control;  in cypress_tiocmget()
826 	status = priv->current_status;  in cypress_tiocmget()
827 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_tiocmget()
846 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_tiocmset()  local
849 	spin_lock_irqsave(&priv->lock, flags);  in cypress_tiocmset()
851 		priv->line_control |= CONTROL_RTS;  in cypress_tiocmset()
853 		priv->line_control |= CONTROL_DTR;  in cypress_tiocmset()
855 		priv->line_control &= ~CONTROL_RTS;  in cypress_tiocmset()
857 		priv->line_control &= ~CONTROL_DTR;  in cypress_tiocmset()
858 	priv->cmd_ctrl = 1;  in cypress_tiocmset()
859 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_tiocmset()
867 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_set_termios()  local
875 	spin_lock_irqsave(&priv->lock, flags);  in cypress_set_termios()
878 	if (!priv->termios_initialized) {  in cypress_set_termios()
879 		if (priv->chiptype == CT_EARTHMATE) {  in cypress_set_termios()
885 		} else if (priv->chiptype == CT_CYPHIDCOM) {  in cypress_set_termios()
891 		} else if (priv->chiptype == CT_CA42V2) {  in cypress_set_termios()
898 		priv->termios_initialized = 1;  in cypress_set_termios()
900 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_set_termios()
910 		spin_lock_irqsave(&priv->lock, flags);  in cypress_set_termios()
911 		priv->tmp_termios = tty->termios;  in cypress_set_termios()
912 		spin_unlock_irqrestore(&priv->lock, flags);  in cypress_set_termios()
945 	spin_lock_irqsave(&priv->lock, flags);  in cypress_set_termios()
946 	oldlines = priv->line_control;  in cypress_set_termios()
950 		priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS);  in cypress_set_termios()
952 		priv->line_control = (CONTROL_DTR | CONTROL_RTS);  in cypress_set_termios()
953 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_set_termios()
971 	spin_lock_irqsave(&priv->lock, flags);  in cypress_set_termios()
972 	if (priv->chiptype == CT_EARTHMATE && priv->baud_rate == 4800) {  in cypress_set_termios()
999 	linechange = (priv->line_control != oldlines);  in cypress_set_termios()
1000 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_set_termios()
1004 		priv->cmd_ctrl = 1;  in cypress_set_termios()
1014 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_chars_in_buffer()  local
1018 	spin_lock_irqsave(&priv->lock, flags);  in cypress_chars_in_buffer()
1019 	chars = kfifo_len(&priv->write_fifo);  in cypress_chars_in_buffer()
1020 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_chars_in_buffer()
1030 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_throttle()  local
1032 	spin_lock_irq(&priv->lock);  in cypress_throttle()
1033 	priv->rx_flags = THROTTLED;  in cypress_throttle()
1034 	spin_unlock_irq(&priv->lock);  in cypress_throttle()
1041 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_unthrottle()  local
1044 	spin_lock_irq(&priv->lock);  in cypress_unthrottle()
1045 	actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;  in cypress_unthrottle()
1046 	priv->rx_flags = 0;  in cypress_unthrottle()
1047 	spin_unlock_irq(&priv->lock);  in cypress_unthrottle()
1049 	if (!priv->comm_is_ok)  in cypress_unthrottle()
1066 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_read_int_callback()  local
1097 	spin_lock_irqsave(&priv->lock, flags);  in cypress_read_int_callback()
1098 	if (priv->rx_flags & THROTTLED) {  in cypress_read_int_callback()
1100 		priv->rx_flags |= ACTUALLY_THROTTLED;  in cypress_read_int_callback()
1101 		spin_unlock_irqrestore(&priv->lock, flags);  in cypress_read_int_callback()
1104 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_read_int_callback()
1112 	spin_lock_irqsave(&priv->lock, flags);  in cypress_read_int_callback()
1114 	switch (priv->pkt_fmt) {  in cypress_read_int_callback()
1118 		priv->current_status = data[0] & 0xF8;  in cypress_read_int_callback()
1126 		priv->current_status = data[0] & 0xF8;  in cypress_read_int_callback()
1133 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_read_int_callback()
1143 	spin_lock_irqsave(&priv->lock, flags);  in cypress_read_int_callback()
1145 	if (priv->current_status != priv->prev_status) {  in cypress_read_int_callback()
1146 		u8 delta = priv->current_status ^ priv->prev_status;  in cypress_read_int_callback()
1161 		priv->prev_status = priv->current_status;  in cypress_read_int_callback()
1163 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_read_int_callback()
1168 			!(priv->current_status & UART_CD)) {  in cypress_read_int_callback()
1178 	spin_lock_irqsave(&priv->lock, flags);  in cypress_read_int_callback()
1179 	if (priv->current_status & CYP_ERROR) {  in cypress_read_int_callback()
1180 		spin_unlock_irqrestore(&priv->lock, flags);  in cypress_read_int_callback()
1184 		spin_unlock_irqrestore(&priv->lock, flags);  in cypress_read_int_callback()
1193 	spin_lock_irqsave(&priv->lock, flags);  in cypress_read_int_callback()
1195 	priv->bytes_in += bytes;  in cypress_read_int_callback()
1196 	spin_unlock_irqrestore(&priv->lock, flags);  in cypress_read_int_callback()
1203 	if (priv->comm_is_ok) {  in cypress_read_int_callback()
1210 				priv->read_urb_interval);  in cypress_read_int_callback()
1224 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_write_int_callback()  local
1238 		priv->write_urb_in_use = 0;  in cypress_write_int_callback()
1249 	priv->write_urb_in_use = 0;  in cypress_write_int_callback()