linux/drivers/tty/serdev/serdev-ttyport.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (C) 2016-2017 Linaro Ltd., Rob Herring <[email protected]>
 */
#include <linux/kernel.h>
#include <linux/serdev.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
#include <linux/poll.h>

#define SERPORT_ACTIVE …

struct serport { … };

/*
 * Callback functions from the tty port.
 */

static size_t ttyport_receive_buf(struct tty_port *port, const u8 *cp,
				  const u8 *fp, size_t count)
{ … }

static void ttyport_write_wakeup(struct tty_port *port)
{ … }

static const struct tty_port_client_operations client_ops = …;

/*
 * Callback functions from the serdev core.
 */

static ssize_t ttyport_write_buf(struct serdev_controller *ctrl, const u8 *data, size_t len)
{ … }

static void ttyport_write_flush(struct serdev_controller *ctrl)
{ … }

static int ttyport_write_room(struct serdev_controller *ctrl)
{ … }

static int ttyport_open(struct serdev_controller *ctrl)
{ … }

static void ttyport_close(struct serdev_controller *ctrl)
{ … }

static unsigned int ttyport_set_baudrate(struct serdev_controller *ctrl, unsigned int speed)
{ … }

static void ttyport_set_flow_control(struct serdev_controller *ctrl, bool enable)
{ … }

static int ttyport_set_parity(struct serdev_controller *ctrl,
			      enum serdev_parity parity)
{ … }

static void ttyport_wait_until_sent(struct serdev_controller *ctrl, long timeout)
{ … }

static int ttyport_get_tiocm(struct serdev_controller *ctrl)
{ … }

static int ttyport_set_tiocm(struct serdev_controller *ctrl, unsigned int set, unsigned int clear)
{ … }

static int ttyport_break_ctl(struct serdev_controller *ctrl, unsigned int break_state)
{ … }

static const struct serdev_controller_ops ctrl_ops = …;

struct device *serdev_tty_port_register(struct tty_port *port,
					struct device *host,
					struct device *parent,
					struct tty_driver *drv, int idx)
{ … }

int serdev_tty_port_unregister(struct tty_port *port)
{ … }