1 /* 2 * RapidIO interconnect services 3 * 4 * Copyright 2005 MontaVista Software, Inc. 5 * Matt Porter <mporter@kernel.crashing.org> 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; either version 2 of the License, or (at your 10 * option) any later version. 11 */ 12 13 #include <linux/device.h> 14 #include <linux/list.h> 15 #include <linux/rio.h> 16 17 #define RIO_MAX_CHK_RETRY 3 18 #define RIO_MPORT_ANY (-1) 19 20 /* Functions internal to the RIO core code */ 21 22 extern u32 rio_mport_get_feature(struct rio_mport *mport, int local, u16 destid, 23 u8 hopcount, int ftr); 24 extern u32 rio_mport_get_physefb(struct rio_mport *port, int local, 25 u16 destid, u8 hopcount); 26 extern u32 rio_mport_get_efb(struct rio_mport *port, int local, u16 destid, 27 u8 hopcount, u32 from); 28 extern int rio_mport_chk_dev_access(struct rio_mport *mport, u16 destid, 29 u8 hopcount); 30 extern int rio_create_sysfs_dev_files(struct rio_dev *rdev); 31 extern int rio_std_route_add_entry(struct rio_mport *mport, u16 destid, 32 u8 hopcount, u16 table, u16 route_destid, 33 u8 route_port); 34 extern int rio_std_route_get_entry(struct rio_mport *mport, u16 destid, 35 u8 hopcount, u16 table, u16 route_destid, 36 u8 *route_port); 37 extern int rio_std_route_clr_table(struct rio_mport *mport, u16 destid, 38 u8 hopcount, u16 table); 39 extern int rio_set_port_lockout(struct rio_dev *rdev, u32 pnum, int lock); 40 extern struct rio_dev *rio_get_comptag(u32 comp_tag, struct rio_dev *from); 41 extern int rio_add_device(struct rio_dev *rdev); 42 extern void rio_switch_init(struct rio_dev *rdev, int do_enum); 43 extern int rio_enable_rx_tx_port(struct rio_mport *port, int local, u16 destid, 44 u8 hopcount, u8 port_num); 45 extern int rio_register_scan(int mport_id, struct rio_scan *scan_ops); 46 extern int rio_unregister_scan(int mport_id); 47 extern void rio_attach_device(struct rio_dev *rdev); 48 extern struct rio_mport *rio_find_mport(int mport_id); 49 50 /* Structures internal to the RIO core code */ 51 extern struct device_attribute rio_dev_attrs[]; 52 extern struct bus_attribute rio_bus_attrs[]; 53 54 extern struct rio_switch_ops __start_rio_switch_ops[]; 55 extern struct rio_switch_ops __end_rio_switch_ops[]; 56 57 /* Helpers internal to the RIO core code */ 58 #define DECLARE_RIO_SWITCH_SECTION(section, name, vid, did, init_hook) \ 59 static const struct rio_switch_ops __rio_switch_##name __used \ 60 __section(section) = { vid, did, init_hook }; 61 62 /** 63 * DECLARE_RIO_SWITCH_INIT - Registers switch initialization routine 64 * @vid: RIO vendor ID 65 * @did: RIO device ID 66 * @init_hook: Callback that performs switch-specific initialization 67 * 68 * Manipulating switch route tables and error management in RIO 69 * is switch specific. This registers a switch by vendor and device ID with 70 * initialization callback for setting up switch operations and (if required) 71 * hardware initialization. A &struct rio_switch_ops is initialized with 72 * pointer to the init routine and placed into a RIO-specific kernel section. 73 */ 74 #define DECLARE_RIO_SWITCH_INIT(vid, did, init_hook) \ 75 DECLARE_RIO_SWITCH_SECTION(.rio_switch_ops, vid##did, \ 76 vid, did, init_hook) 77 78 #define RIO_GET_DID(size, x) (size ? (x & 0xffff) : ((x & 0x00ff0000) >> 16)) 79 #define RIO_SET_DID(size, x) (size ? (x & 0xffff) : ((x & 0x000000ff) << 16)) 80