1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Generic serial GNSS receiver driver 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (C) 2018 Johan Hovold <johan@kernel.org> 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #ifndef _LINUX_GNSS_SERIAL_H 9*4882a593Smuzhiyun #define _LINUX_GNSS_SERIAL_H 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #include <asm/termbits.h> 12*4882a593Smuzhiyun #include <linux/pm.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun struct gnss_serial { 15*4882a593Smuzhiyun struct serdev_device *serdev; 16*4882a593Smuzhiyun struct gnss_device *gdev; 17*4882a593Smuzhiyun speed_t speed; 18*4882a593Smuzhiyun const struct gnss_serial_ops *ops; 19*4882a593Smuzhiyun unsigned long drvdata[]; 20*4882a593Smuzhiyun }; 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun enum gnss_serial_pm_state { 23*4882a593Smuzhiyun GNSS_SERIAL_OFF, 24*4882a593Smuzhiyun GNSS_SERIAL_ACTIVE, 25*4882a593Smuzhiyun GNSS_SERIAL_STANDBY, 26*4882a593Smuzhiyun }; 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun struct gnss_serial_ops { 29*4882a593Smuzhiyun int (*set_power)(struct gnss_serial *gserial, 30*4882a593Smuzhiyun enum gnss_serial_pm_state state); 31*4882a593Smuzhiyun }; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun extern const struct dev_pm_ops gnss_serial_pm_ops; 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun struct gnss_serial *gnss_serial_allocate(struct serdev_device *gserial, 36*4882a593Smuzhiyun size_t data_size); 37*4882a593Smuzhiyun void gnss_serial_free(struct gnss_serial *gserial); 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun int gnss_serial_register(struct gnss_serial *gserial); 40*4882a593Smuzhiyun void gnss_serial_deregister(struct gnss_serial *gserial); 41*4882a593Smuzhiyun gnss_serial_get_drvdata(struct gnss_serial * gserial)42*4882a593Smuzhiyunstatic inline void *gnss_serial_get_drvdata(struct gnss_serial *gserial) 43*4882a593Smuzhiyun { 44*4882a593Smuzhiyun return gserial->drvdata; 45*4882a593Smuzhiyun } 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun #endif /* _LINUX_GNSS_SERIAL_H */ 48