Merge "usb: gadget: Send BRK signal to host on flow disable ioctl" (3cda9468) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/usb/gadget/function/f_cdev.c

+18 −0

Original line number	Diff line number	Diff line
		@@ -1353,6 +1353,9 @@ static int f_cdev_tiocmget(struct f_cdev *port)

		if (cser->serial_state & TIOCM_DSR)
		result \|= TIOCM_DSR;

		if (cser->serial_state & TIOCM_CTS)
		result \|= TIOCM_CTS;
		return result;
		}

		@@ -1399,6 +1402,18 @@ static int f_cdev_tiocmset(struct f_cdev *port,
		if (clear & TIOCM_DSR)
		cser->serial_state &= ~TIOCM_DSR;

		if (set & TIOCM_CTS) {
		if (cser->send_break) {
		cser->serial_state \|= TIOCM_CTS;
		status = cser->send_break(cser, 0);
		}
		}
		if (clear & TIOCM_CTS) {
		if (cser->send_break) {
		cser->serial_state &= ~TIOCM_CTS;
		status = cser->send_break(cser, 1);
		}
		}
		return status;
		}

		@@ -1527,8 +1542,10 @@ int usb_cser_connect(struct f_cdev *port)

		void usb_cser_disconnect(struct f_cdev *port)
		{
		struct cserial *cser;
		unsigned long flags;

		cser = &port->port_usb;
		usb_cser_stop_io(port);

		/* lower DTR to modem */
		@@ -1536,6 +1553,7 @@ void usb_cser_disconnect(struct f_cdev *port)

		spin_lock_irqsave(&port->port_lock, flags);
		port->is_connected = false;
		cser->notify_modem = NULL;
		port->nbytes_from_host = port->nbytes_to_host = 0;
		port->nbytes_to_port_bridge = 0;
		spin_unlock_irqrestore(&port->port_lock, flags);