| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | /* |
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| 3 | * Generic serial GNSS receiver driver |
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| 4 | * |
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| 5 | * Copyright (C) 2018 Johan Hovold <johan@kernel.org> |
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| 6 | */ |
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| 7 | |
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| 8 | #ifndef _LINUX_GNSS_SERIAL_H |
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| 9 | #define _LINUX_GNSS_SERIAL_H |
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| 10 | |
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| 11 | #include <asm/termbits.h> |
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| 12 | #include <linux/pm.h> |
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| 13 | |
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| 14 | struct gnss_serial { |
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| 15 | struct serdev_device *serdev; |
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| 16 | struct gnss_device *gdev; |
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| 17 | speed_t speed; |
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| 18 | const struct gnss_serial_ops *ops; |
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| 19 | unsigned long drvdata[]; |
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| 20 | }; |
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| 21 | |
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| 22 | enum gnss_serial_pm_state { |
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| 23 | GNSS_SERIAL_OFF, |
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| 24 | GNSS_SERIAL_ACTIVE, |
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| 25 | GNSS_SERIAL_STANDBY, |
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| 26 | }; |
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| 27 | |
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| 28 | struct gnss_serial_ops { |
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| 29 | int (*set_power)(struct gnss_serial *gserial, |
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| 30 | enum gnss_serial_pm_state state); |
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| 31 | }; |
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| 32 | |
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| 33 | extern const struct dev_pm_ops gnss_serial_pm_ops; |
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| 34 | |
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| 35 | struct gnss_serial *gnss_serial_allocate(struct serdev_device *gserial, |
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| 36 | size_t data_size); |
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| 37 | void gnss_serial_free(struct gnss_serial *gserial); |
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| 38 | |
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| 39 | int gnss_serial_register(struct gnss_serial *gserial); |
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| 40 | void gnss_serial_deregister(struct gnss_serial *gserial); |
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| 41 | |
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| 42 | static inline void *gnss_serial_get_drvdata(struct gnss_serial *gserial) |
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| 43 | { |
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| 44 | return gserial->drvdata; |
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| 45 | } |
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| 46 | |
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| 47 | #endif /* _LINUX_GNSS_SERIAL_H */ |
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| 48 | |
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