1 /* 2 * FSI core driver 3 * 4 * Copyright (C) IBM Corporation 2016 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 */ 15 16 #include <linux/device.h> 17 #include <linux/fsi.h> 18 #include <linux/module.h> 19 20 /* FSI core & Linux bus type definitions */ 21 22 static int fsi_bus_match(struct device *dev, struct device_driver *drv) 23 { 24 struct fsi_device *fsi_dev = to_fsi_dev(dev); 25 struct fsi_driver *fsi_drv = to_fsi_drv(drv); 26 const struct fsi_device_id *id; 27 28 if (!fsi_drv->id_table) 29 return 0; 30 31 for (id = fsi_drv->id_table; id->engine_type; id++) { 32 if (id->engine_type != fsi_dev->engine_type) 33 continue; 34 if (id->version == FSI_VERSION_ANY || 35 id->version == fsi_dev->version) 36 return 1; 37 } 38 39 return 0; 40 } 41 42 struct bus_type fsi_bus_type = { 43 .name = "fsi", 44 .match = fsi_bus_match, 45 }; 46 EXPORT_SYMBOL_GPL(fsi_bus_type); 47 48 static int fsi_init(void) 49 { 50 return bus_register(&fsi_bus_type); 51 } 52 53 static void fsi_exit(void) 54 { 55 bus_unregister(&fsi_bus_type); 56 } 57 58 module_init(fsi_init); 59 module_exit(fsi_exit); 60