1 /* 2 * FSI master definitions. These comprise the core <--> master interface, 3 * to allow the core to interact with the (hardware-specific) masters. 4 * 5 * Copyright (C) IBM Corporation 2016 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 */ 16 17 #ifndef DRIVERS_FSI_MASTER_H 18 #define DRIVERS_FSI_MASTER_H 19 20 #include <linux/device.h> 21 22 #define FSI_MASTER_FLAG_SWCLOCK 0x1 23 24 struct fsi_master { 25 struct device dev; 26 int idx; 27 int n_links; 28 int flags; 29 int (*read)(struct fsi_master *, int link, uint8_t id, 30 uint32_t addr, void *val, size_t size); 31 int (*write)(struct fsi_master *, int link, uint8_t id, 32 uint32_t addr, const void *val, size_t size); 33 int (*term)(struct fsi_master *, int link, uint8_t id); 34 int (*send_break)(struct fsi_master *, int link); 35 int (*link_enable)(struct fsi_master *, int link); 36 }; 37 38 #define dev_to_fsi_master(d) container_of(d, struct fsi_master, dev) 39 40 extern int fsi_master_register(struct fsi_master *master); 41 extern void fsi_master_unregister(struct fsi_master *master); 42 43 #endif /* DRIVERS_FSI_MASTER_H */ 44