linux/drivers/gnss/serial.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Generic serial GNSS receiver driver
 *
 * Copyright (C) 2018 Johan Hovold <[email protected]>
 */

#include <linux/errno.h>
#include <linux/gnss.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/sched.h>
#include <linux/serdev.h>
#include <linux/slab.h>

#include "serial.h"

static int gnss_serial_open(struct gnss_device *gdev)
{ … }

static void gnss_serial_close(struct gnss_device *gdev)
{ … }

static int gnss_serial_write_raw(struct gnss_device *gdev,
		const unsigned char *buf, size_t count)
{ … }

static const struct gnss_operations gnss_serial_gnss_ops = …;

static size_t gnss_serial_receive_buf(struct serdev_device *serdev,
				       const u8 *buf, size_t count)
{ … }

static const struct serdev_device_ops gnss_serial_serdev_ops = …;

static int gnss_serial_set_power(struct gnss_serial *gserial,
					enum gnss_serial_pm_state state)
{ … }

/*
 * FIXME: need to provide subdriver defaults or separate dt parsing from
 * allocation.
 */
static int gnss_serial_parse_dt(struct serdev_device *serdev)
{ … }

struct gnss_serial *gnss_serial_allocate(struct serdev_device *serdev,
						size_t data_size)
{ … }
EXPORT_SYMBOL_GPL(…);

void gnss_serial_free(struct gnss_serial *gserial)
{ … }
EXPORT_SYMBOL_GPL(…);

int gnss_serial_register(struct gnss_serial *gserial)
{ … }
EXPORT_SYMBOL_GPL(…);

void gnss_serial_deregister(struct gnss_serial *gserial)
{ … }
EXPORT_SYMBOL_GPL(…);

#ifdef CONFIG_PM
static int gnss_serial_runtime_suspend(struct device *dev)
{ … }

static int gnss_serial_runtime_resume(struct device *dev)
{ … }
#endif /* CONFIG_PM */

static int gnss_serial_prepare(struct device *dev)
{ … }

#ifdef CONFIG_PM_SLEEP
static int gnss_serial_suspend(struct device *dev)
{ … }

static int gnss_serial_resume(struct device *dev)
{ … }
#endif /* CONFIG_PM_SLEEP */

const struct dev_pm_ops gnss_serial_pm_ops = …;
EXPORT_SYMBOL_GPL(…);

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;