1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Generic serial GNSS receiver driver
 4 *
 5 * Copyright (C) 2018 Johan Hovold <johan@kernel.org>
 6 */
 7
 8#ifndef _LINUX_GNSS_SERIAL_H
 9#define _LINUX_GNSS_SERIAL_H
10
11#include <asm/termbits.h>
12#include <linux/pm.h>
13
14struct gnss_serial {
15	struct serdev_device *serdev;
16	struct gnss_device *gdev;
17	speed_t	speed;
18	const struct gnss_serial_ops *ops;
19	unsigned long drvdata[];
20};
21
22enum gnss_serial_pm_state {
23	GNSS_SERIAL_OFF,
24	GNSS_SERIAL_ACTIVE,
25	GNSS_SERIAL_STANDBY,
26};
27
28struct gnss_serial_ops {
29	int (*set_power)(struct gnss_serial *gserial,
30				enum gnss_serial_pm_state state);
31};
32
33extern const struct dev_pm_ops gnss_serial_pm_ops;
34
35struct gnss_serial *gnss_serial_allocate(struct serdev_device *gserial,
36						size_t data_size);
37void gnss_serial_free(struct gnss_serial *gserial);
38
39int gnss_serial_register(struct gnss_serial *gserial);
40void gnss_serial_deregister(struct gnss_serial *gserial);
41
42static inline void *gnss_serial_get_drvdata(struct gnss_serial *gserial)
43{
44	return gserial->drvdata;
45}
46
47#endif /* _LINUX_GNSS_SERIAL_H */