[mirror_ubuntu-bionic-kernel.git] / include / linux / rio.h

/*
 * RapidIO interconnect services
 * (RapidIO Interconnect Specification, http://www.rapidio.org)
 *
 * Copyright 2005 MontaVista Software, Inc.
 * Matt Porter <mporter@kernel.crashing.org>
 *
 * This program is free software; you can redistribute  it and/or modify it
 * under  the terms of  the GNU General  Public License as published by the
 * Free Software Foundation;  either version 2 of the  License, or (at your
 * option) any later version.
 */

#ifndef LINUX_RIO_H
#define LINUX_RIO_H

#include <linux/types.h>
#include <linux/ioport.h>
#include <linux/list.h>
#include <linux/errno.h>
#include <linux/device.h>
#include <linux/rio_regs.h>

#define RIO_NO_HOPCOUNT		-1
#define RIO_INVALID_DESTID	0xffff

#define RIO_MAX_MPORT_RESOURCES	16
#define RIO_MAX_DEV_RESOURCES	16

#define RIO_GLOBAL_TABLE	0xff	/* Indicates access of a switch's
					   global routing table if it
					   has multiple (or per port)
					   tables */

#define RIO_INVALID_ROUTE	0xff	/* Indicates that a route table
					   entry is invalid (no route
					   exists for the device ID) */

#define RIO_MAX_ROUTE_ENTRIES(size)	(size ? (1 << 16) : (1 << 8))
#define RIO_ANY_DESTID(size)		(size ? 0xffff : 0xff)

#define RIO_MAX_MBOX		4
#define RIO_MAX_MSG_SIZE	0x1000

/*
 * Error values that may be returned by RIO functions.
 */
#define RIO_SUCCESSFUL			0x00
#define RIO_BAD_SIZE			0x81

/*
 * For RIO devices, the region numbers are assigned this way:
 *
 *	0	RapidIO outbound doorbells
 *      1-15	RapidIO memory regions
 *
 * For RIO master ports, the region number are assigned this way:
 *
 *	0	RapidIO inbound doorbells
 *	1	RapidIO inbound mailboxes
 *	1	RapidIO outbound mailboxes
 */
#define RIO_DOORBELL_RESOURCE	0
#define RIO_INB_MBOX_RESOURCE	1
#define RIO_OUTB_MBOX_RESOURCE	2

#define RIO_PW_MSG_SIZE		64

extern struct bus_type rio_bus_type;
extern struct device rio_bus;
extern struct list_head rio_devices;	/* list of all devices */

struct rio_mport;
union rio_pw_msg;

/**
 * struct rio_dev - RIO device info
 * @global_list: Node in list of all RIO devices
 * @net_list: Node in list of RIO devices in a network
 * @net: Network this device is a part of
 * @did: Device ID
 * @vid: Vendor ID
 * @device_rev: Device revision
 * @asm_did: Assembly device ID
 * @asm_vid: Assembly vendor ID
 * @asm_rev: Assembly revision
 * @efptr: Extended feature pointer
 * @pef: Processing element features
 * @swpinfo: Switch port info
 * @src_ops: Source operation capabilities
 * @dst_ops: Destination operation capabilities
 * @comp_tag: RIO component tag
 * @phys_efptr: RIO device extended features pointer
 * @em_efptr: RIO Error Management features pointer
 * @dma_mask: Mask of bits of RIO address this device implements
 * @rswitch: Pointer to &struct rio_switch if valid for this device
 * @driver: Driver claiming this device
 * @dev: Device model device
 * @riores: RIO resources this device owns
 * @pwcback: port-write callback function for this device
 * @destid: Network destination ID
 */
struct rio_dev {
	struct list_head global_list;	/* node in list of all RIO devices */
	struct list_head net_list;	/* node in per net list */
	struct rio_net *net;	/* RIO net this device resides in */
	u16 did;
	u16 vid;
	u32 device_rev;
	u16 asm_did;
	u16 asm_vid;
	u16 asm_rev;
	u16 efptr;
	u32 pef;
	u32 swpinfo;		/* Only used for switches */
	u32 src_ops;
	u32 dst_ops;
	u32 comp_tag;
	u32 phys_efptr;
	u32 em_efptr;
	u64 dma_mask;
	struct rio_switch *rswitch;	/* RIO switch info */
	struct rio_driver *driver;	/* RIO driver claiming this device */
	struct device dev;	/* LDM device structure */
	struct resource riores[RIO_MAX_DEV_RESOURCES];
	int (*pwcback) (struct rio_dev *rdev, union rio_pw_msg *msg, int step);
	u16 destid;
};

#define rio_dev_g(n) list_entry(n, struct rio_dev, global_list)
#define rio_dev_f(n) list_entry(n, struct rio_dev, net_list)
#define	to_rio_dev(n) container_of(n, struct rio_dev, dev)

/**
 * struct rio_msg - RIO message event
 * @res: Mailbox resource
 * @mcback: Message event callback
 */
struct rio_msg {
	struct resource *res;
	void (*mcback) (struct rio_mport * mport, void *dev_id, int mbox, int slot);
};

/**
 * struct rio_dbell - RIO doorbell event
 * @node: Node in list of doorbell events
 * @res: Doorbell resource
 * @dinb: Doorbell event callback
 * @dev_id: Device specific pointer to pass on event
 */
struct rio_dbell {
	struct list_head node;
	struct resource *res;
	void (*dinb) (struct rio_mport *mport, void *dev_id, u16 src, u16 dst, u16 info);
	void *dev_id;
};

enum rio_phy_type {
	RIO_PHY_PARALLEL,
	RIO_PHY_SERIAL,
};

/**
 * struct rio_mport - RIO master port info
 * @dbells: List of doorbell events
 * @node: Node in global list of master ports
 * @nnode: Node in network list of master ports
 * @iores: I/O mem resource that this master port interface owns
 * @riores: RIO resources that this master port interfaces owns
 * @inb_msg: RIO inbound message event descriptors
 * @outb_msg: RIO outbound message event descriptors
 * @host_deviceid: Host device ID associated with this master port
 * @ops: configuration space functions
 * @id: Port ID, unique among all ports
 * @index: Port index, unique among all port interfaces of the same type
 * @sys_size: RapidIO common transport system size
 * @phy_type: RapidIO phy type
 * @name: Port name string
 * @priv: Master port private data
 */
struct rio_mport {
	struct list_head dbells;	/* list of doorbell events */
	struct list_head node;	/* node in global list of ports */
	struct list_head nnode;	/* node in net list of ports */
	struct resource iores;
	struct resource riores[RIO_MAX_MPORT_RESOURCES];
	struct rio_msg inb_msg[RIO_MAX_MBOX];
	struct rio_msg outb_msg[RIO_MAX_MBOX];
	int host_deviceid;	/* Host device ID */
	struct rio_ops *ops;	/* maintenance transaction functions */
	unsigned char id;	/* port ID, unique among all ports */
	unsigned char index;	/* port index, unique among all port
				   interfaces of the same type */
	unsigned int sys_size;	/* RapidIO common transport system size.
				 * 0 - Small size. 256 devices.
				 * 1 - Large size, 65536 devices.
				 */
	enum rio_phy_type phy_type;	/* RapidIO phy type */
	unsigned char name[40];
	void *priv;		/* Master port private data */
};

/**
 * struct rio_net - RIO network info
 * @node: Node in global list of RIO networks
 * @devices: List of devices in this network
 * @mports: List of master ports accessing this network
 * @hport: Default port for accessing this network
 * @id: RIO network ID
 */
struct rio_net {
	struct list_head node;	/* node in list of networks */
	struct list_head devices;	/* list of devices in this net */
	struct list_head mports;	/* list of ports accessing net */
	struct rio_mport *hport;	/* primary port for accessing net */
	unsigned char id;	/* RIO network ID */
};

/**
 * struct rio_switch - RIO switch info
 * @node: Node in global list of switches
 * @switchid: Switch ID that is unique across a network
 * @hopcount: Hopcount to this switch
 * @destid: Associated destid in the path
 * @route_table: Copy of switch routing table
 * @port_ok: Status of each port (one bit per port) - OK=1 or UNINIT=0
 * @add_entry: Callback for switch-specific route add function
 * @get_entry: Callback for switch-specific route get function
 * @clr_table: Callback for switch-specific clear route table function
 * @set_domain: Callback for switch-specific domain setting function
 * @get_domain: Callback for switch-specific domain get function
 * @em_init: Callback for switch-specific error management initialization function
 * @em_handle: Callback for switch-specific error management handler function
 */
struct rio_switch {
	struct list_head node;
	u16 switchid;
	u16 hopcount;
	u16 destid;
	u8 *route_table;
	u32 port_ok;
	int (*add_entry) (struct rio_mport * mport, u16 destid, u8 hopcount,
			  u16 table, u16 route_destid, u8 route_port);
	int (*get_entry) (struct rio_mport * mport, u16 destid, u8 hopcount,
			  u16 table, u16 route_destid, u8 * route_port);
	int (*clr_table) (struct rio_mport *mport, u16 destid, u8 hopcount,
			  u16 table);
	int (*set_domain) (struct rio_mport *mport, u16 destid, u8 hopcount,
			   u8 sw_domain);
	int (*get_domain) (struct rio_mport *mport, u16 destid, u8 hopcount,
			   u8 *sw_domain);
	int (*em_init) (struct rio_dev *dev);
	int (*em_handle) (struct rio_dev *dev, u8 swport);
};

/* Low-level architecture-dependent routines */

/**
 * struct rio_ops - Low-level RIO configuration space operations
 * @lcread: Callback to perform local (master port) read of config space.
 * @lcwrite: Callback to perform local (master port) write of config space.
 * @cread: Callback to perform network read of config space.
 * @cwrite: Callback to perform network write of config space.
 * @dsend: Callback to send a doorbell message.
 * @pwenable: Callback to enable/disable port-write message handling.
 */
struct rio_ops {
	int (*lcread) (struct rio_mport *mport, int index, u32 offset, int len,
			u32 *data);
	int (*lcwrite) (struct rio_mport *mport, int index, u32 offset, int len,
			u32 data);
	int (*cread) (struct rio_mport *mport, int index, u16 destid,
			u8 hopcount, u32 offset, int len, u32 *data);
	int (*cwrite) (struct rio_mport *mport, int index, u16 destid,
			u8 hopcount, u32 offset, int len, u32 data);
	int (*dsend) (struct rio_mport *mport, int index, u16 destid, u16 data);
	int (*pwenable) (struct rio_mport *mport, int enable);
};

#define RIO_RESOURCE_MEM	0x00000100
#define RIO_RESOURCE_DOORBELL	0x00000200
#define RIO_RESOURCE_MAILBOX	0x00000400

#define RIO_RESOURCE_CACHEABLE	0x00010000
#define RIO_RESOURCE_PCI	0x00020000

#define RIO_RESOURCE_BUSY	0x80000000

/**
 * struct rio_driver - RIO driver info
 * @node: Node in list of drivers
 * @name: RIO driver name
 * @id_table: RIO device ids to be associated with this driver
 * @probe: RIO device inserted
 * @remove: RIO device removed
 * @suspend: RIO device suspended
 * @resume: RIO device awakened
 * @enable_wake: RIO device enable wake event
 * @driver: LDM driver struct
 *
 * Provides info on a RIO device driver for insertion/removal and
 * power management purposes.
 */
struct rio_driver {
	struct list_head node;
	char *name;
	const struct rio_device_id *id_table;
	int (*probe) (struct rio_dev * dev, const struct rio_device_id * id);
	void (*remove) (struct rio_dev * dev);
	int (*suspend) (struct rio_dev * dev, u32 state);
	int (*resume) (struct rio_dev * dev);
	int (*enable_wake) (struct rio_dev * dev, u32 state, int enable);
	struct device_driver driver;
};

#define	to_rio_driver(drv) container_of(drv,struct rio_driver, driver)

/**
 * struct rio_device_id - RIO device identifier
 * @did: RIO device ID
 * @vid: RIO vendor ID
 * @asm_did: RIO assembly device ID
 * @asm_vid: RIO assembly vendor ID
 *
 * Identifies a RIO device based on both the device/vendor IDs and
 * the assembly device/vendor IDs.
 */
struct rio_device_id {
	u16 did, vid;
	u16 asm_did, asm_vid;
};

/**
 * struct rio_switch_ops - Per-switch operations
 * @vid: RIO vendor ID
 * @did: RIO device ID
 * @init_hook: Callback that performs switch device initialization
 *
 * Defines the operations that are necessary to initialize/control
 * a particular RIO switch device.
 */
struct rio_switch_ops {
	u16 vid, did;
	int (*init_hook) (struct rio_dev *rdev, int do_enum);
};

union rio_pw_msg {
	struct {
		u32 comptag;	/* Component Tag CSR */
		u32 errdetect;	/* Port N Error Detect CSR */
		u32 is_port;	/* Implementation specific + PortID */
		u32 ltlerrdet;	/* LTL Error Detect CSR */
		u32 padding[12];
	} em;
	u32 raw[RIO_PW_MSG_SIZE/sizeof(u32)];
};

/* Architecture and hardware-specific functions */
extern int rio_init_mports(void);
extern void rio_register_mport(struct rio_mport *);
extern int rio_hw_add_outb_message(struct rio_mport *, struct rio_dev *, int,
				   void *, size_t);
extern int rio_hw_add_inb_buffer(struct rio_mport *, int, void *);
extern void *rio_hw_get_inb_message(struct rio_mport *, int);
extern int rio_open_inb_mbox(struct rio_mport *, void *, int, int);
extern void rio_close_inb_mbox(struct rio_mport *, int);
extern int rio_open_outb_mbox(struct rio_mport *, void *, int, int);
extern void rio_close_outb_mbox(struct rio_mport *, int);

#endif				/* LINUX_RIO_H */
Commit	Line	Data
70a50ebd MP	1	/*
	2	* RapidIO interconnect services
	3	* (RapidIO Interconnect Specification, http://www.rapidio.org)
	4	*
	5	* Copyright 2005 MontaVista Software, Inc.
	6	* Matt Porter <mporter@kernel.crashing.org>
	7	*
	8	* This program is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by the
	10	* Free Software Foundation; either version 2 of the License, or (at your
	11	* option) any later version.
	12	*/
	13
	14	#ifndef LINUX_RIO_H
	15	#define LINUX_RIO_H
	16
70a50ebd	17	#include <linux/types.h>
70a50ebd MP	18	#include <linux/ioport.h>
	19	#include <linux/list.h>
	20	#include <linux/errno.h>
	21	#include <linux/device.h>
	22	#include <linux/rio_regs.h>
	23
70a50ebd	24	#define RIO_NO_HOPCOUNT -1
c70555b0	25	#define RIO_INVALID_DESTID 0xffff
70a50ebd MP	26
	27	#define RIO_MAX_MPORT_RESOURCES 16
	28	#define RIO_MAX_DEV_RESOURCES 16
	29
	30	#define RIO_GLOBAL_TABLE 0xff /* Indicates access of a switch's
	31	global routing table if it
	32	has multiple (or per port)
	33	tables */
	34
	35	#define RIO_INVALID_ROUTE 0xff /* Indicates that a route table
	36	entry is invalid (no route
	37	exists for the device ID) */
	38
e0423236 ZW	39	#define RIO_MAX_ROUTE_ENTRIES(size) (size ? (1 << 16) : (1 << 8))
e0423236 ZW	40	#define RIO_ANY_DESTID(size) (size ? 0xffff : 0xff)
70a50ebd MP	41
	42	#define RIO_MAX_MBOX 4
	43	#define RIO_MAX_MSG_SIZE 0x1000
	44
	45	/*
	46	* Error values that may be returned by RIO functions.
	47	*/
	48	#define RIO_SUCCESSFUL 0x00
	49	#define RIO_BAD_SIZE 0x81
	50
	51	/*
	52	* For RIO devices, the region numbers are assigned this way:
	53	*
	54	* 0 RapidIO outbound doorbells
	55	* 1-15 RapidIO memory regions
	56	*
	57	* For RIO master ports, the region number are assigned this way:
	58	*
	59	* 0 RapidIO inbound doorbells
	60	* 1 RapidIO inbound mailboxes
	61	* 1 RapidIO outbound mailboxes
	62	*/
	63	#define RIO_DOORBELL_RESOURCE 0
	64	#define RIO_INB_MBOX_RESOURCE 1
	65	#define RIO_OUTB_MBOX_RESOURCE 2
	66
e5cabeb3 AB	67	#define RIO_PW_MSG_SIZE 64
e5cabeb3 AB	68
70a50ebd	69	extern struct bus_type rio_bus_type;
2c70f022	70	extern struct device rio_bus;
70a50ebd MP	71	extern struct list_head rio_devices; /* list of all devices */
	72
	73	struct rio_mport;
e5cabeb3	74	union rio_pw_msg;
70a50ebd MP	75
	76	/**
	77	* struct rio_dev - RIO device info
	78	* @global_list: Node in list of all RIO devices
	79	* @net_list: Node in list of RIO devices in a network
	80	* @net: Network this device is a part of
	81	* @did: Device ID
	82	* @vid: Vendor ID
	83	* @device_rev: Device revision
	84	* @asm_did: Assembly device ID
	85	* @asm_vid: Assembly vendor ID
	86	* @asm_rev: Assembly revision
	87	* @efptr: Extended feature pointer
	88	* @pef: Processing element features
	89	* @swpinfo: Switch port info
	90	* @src_ops: Source operation capabilities
	91	* @dst_ops: Destination operation capabilities
97ef6f74 RD	92	* @comp_tag: RIO component tag
	93	* @phys_efptr: RIO device extended features pointer
	94	* @em_efptr: RIO Error Management features pointer
fa78cc51	95	* @dma_mask: Mask of bits of RIO address this device implements
70a50ebd MP	96	* @rswitch: Pointer to &struct rio_switch if valid for this device
	97	* @driver: Driver claiming this device
	98	* @dev: Device model device
	99	* @riores: RIO resources this device owns
97ef6f74	100	* @pwcback: port-write callback function for this device
70a50ebd MP	101	* @destid: Network destination ID
	102	*/
	103	struct rio_dev {
	104	struct list_head global_list; /* node in list of all RIO devices */
	105	struct list_head net_list; /* node in per net list */
	106	struct rio_net net; / RIO net this device resides in */
	107	u16 did;
	108	u16 vid;
	109	u32 device_rev;
	110	u16 asm_did;
	111	u16 asm_vid;
	112	u16 asm_rev;
	113	u16 efptr;
	114	u32 pef;
	115	u32 swpinfo; /* Only used for switches */
	116	u32 src_ops;
	117	u32 dst_ops;
e5cabeb3 AB	118	u32 comp_tag;
	119	u32 phys_efptr;
	120	u32 em_efptr;
fa78cc51	121	u64 dma_mask;
70a50ebd MP	122	struct rio_switch rswitch; / RIO switch info */
	123	struct rio_driver driver; / RIO driver claiming this device */
	124	struct device dev; /* LDM device structure */
	125	struct resource riores[RIO_MAX_DEV_RESOURCES];
e5cabeb3	126	int (pwcback) (struct rio_dev rdev, union rio_pw_msg *msg, int step);
70a50ebd MP	127	u16 destid;
	128	};
	129
	130	#define rio_dev_g(n) list_entry(n, struct rio_dev, global_list)
	131	#define rio_dev_f(n) list_entry(n, struct rio_dev, net_list)
	132	#define to_rio_dev(n) container_of(n, struct rio_dev, dev)
	133
	134	/**
	135	* struct rio_msg - RIO message event
	136	* @res: Mailbox resource
	137	* @mcback: Message event callback
	138	*/
	139	struct rio_msg {
	140	struct resource *res;
6978bbc0	141	void (mcback) (struct rio_mport mport, void *dev_id, int mbox, int slot);
70a50ebd MP	142	};
	143
	144	/**
	145	* struct rio_dbell - RIO doorbell event
	146	* @node: Node in list of doorbell events
	147	* @res: Doorbell resource
	148	* @dinb: Doorbell event callback
6978bbc0	149	* @dev_id: Device specific pointer to pass on event
70a50ebd MP	150	*/
	151	struct rio_dbell {
	152	struct list_head node;
	153	struct resource *res;
6978bbc0 MP	154	void (dinb) (struct rio_mport mport, void *dev_id, u16 src, u16 dst, u16 info);
6978bbc0 MP	155	void *dev_id;
70a50ebd MP	156	};
70a50ebd MP	157
61b26917 ZW	158	enum rio_phy_type {
	159	RIO_PHY_PARALLEL,
	160	RIO_PHY_SERIAL,
	161	};
	162
70a50ebd MP	163	/**
	164	* struct rio_mport - RIO master port info
	165	* @dbells: List of doorbell events
	166	* @node: Node in global list of master ports
	167	* @nnode: Node in network list of master ports
	168	* @iores: I/O mem resource that this master port interface owns
	169	* @riores: RIO resources that this master port interfaces owns
	170	* @inb_msg: RIO inbound message event descriptors
	171	* @outb_msg: RIO outbound message event descriptors
	172	* @host_deviceid: Host device ID associated with this master port
	173	* @ops: configuration space functions
	174	* @id: Port ID, unique among all ports
	175	* @index: Port index, unique among all port interfaces of the same type
9941d945 RD	176	* @sys_size: RapidIO common transport system size
9941d945 RD	177	* @phy_type: RapidIO phy type
70a50ebd	178	* @name: Port name string
ad1e9380	179	* @priv: Master port private data
70a50ebd MP	180	*/
	181	struct rio_mport {
	182	struct list_head dbells; /* list of doorbell events */
	183	struct list_head node; /* node in global list of ports */
	184	struct list_head nnode; /* node in net list of ports */
	185	struct resource iores;
	186	struct resource riores[RIO_MAX_MPORT_RESOURCES];
	187	struct rio_msg inb_msg[RIO_MAX_MBOX];
	188	struct rio_msg outb_msg[RIO_MAX_MBOX];
	189	int host_deviceid; /* Host device ID */
	190	struct rio_ops ops; / maintenance transaction functions */
	191	unsigned char id; /* port ID, unique among all ports */
	192	unsigned char index; /* port index, unique among all port
	193	interfaces of the same type */
e0423236 ZW	194	unsigned int sys_size; /* RapidIO common transport system size.
	195	* 0 - Small size. 256 devices.
	196	* 1 - Large size, 65536 devices.
	197	*/
61b26917	198	enum rio_phy_type phy_type; /* RapidIO phy type */
70a50ebd	199	unsigned char name[40];
ad1e9380	200	void priv; / Master port private data */
70a50ebd MP	201	};
	202
	203	/**
	204	* struct rio_net - RIO network info
	205	* @node: Node in global list of RIO networks
	206	* @devices: List of devices in this network
	207	* @mports: List of master ports accessing this network
	208	* @hport: Default port for accessing this network
	209	* @id: RIO network ID
	210	*/
	211	struct rio_net {
	212	struct list_head node; /* node in list of networks */
	213	struct list_head devices; /* list of devices in this net */
	214	struct list_head mports; /* list of ports accessing net */
	215	struct rio_mport hport; / primary port for accessing net */
	216	unsigned char id; /* RIO network ID */
	217	};
	218
	219	/**
	220	* struct rio_switch - RIO switch info
	221	* @node: Node in global list of switches
	222	* @switchid: Switch ID that is unique across a network
	223	* @hopcount: Hopcount to this switch
	224	* @destid: Associated destid in the path
	225	* @route_table: Copy of switch routing table
e5cabeb3	226	* @port_ok: Status of each port (one bit per port) - OK=1 or UNINIT=0
70a50ebd MP	227	* @add_entry: Callback for switch-specific route add function
70a50ebd MP	228	* @get_entry: Callback for switch-specific route get function
07590ff0	229	* @clr_table: Callback for switch-specific clear route table function
97ef6f74 RD	230	* @set_domain: Callback for switch-specific domain setting function
97ef6f74 RD	231	* @get_domain: Callback for switch-specific domain get function
e5cabeb3 AB	232	* @em_init: Callback for switch-specific error management initialization function
e5cabeb3 AB	233	* @em_handle: Callback for switch-specific error management handler function
70a50ebd MP	234	*/
	235	struct rio_switch {
	236	struct list_head node;
	237	u16 switchid;
	238	u16 hopcount;
	239	u16 destid;
e0423236	240	u8 *route_table;
e5cabeb3	241	u32 port_ok;
70a50ebd MP	242	int (add_entry) (struct rio_mport mport, u16 destid, u8 hopcount,
	243	u16 table, u16 route_destid, u8 route_port);
	244	int (get_entry) (struct rio_mport mport, u16 destid, u8 hopcount,
	245	u16 table, u16 route_destid, u8 * route_port);
07590ff0 AB	246	int (clr_table) (struct rio_mport mport, u16 destid, u8 hopcount,
07590ff0 AB	247	u16 table);
7a88d628 AB	248	int (set_domain) (struct rio_mport mport, u16 destid, u8 hopcount,
	249	u8 sw_domain);
	250	int (get_domain) (struct rio_mport mport, u16 destid, u8 hopcount,
	251	u8 *sw_domain);
e5cabeb3 AB	252	int (em_init) (struct rio_dev dev);
e5cabeb3 AB	253	int (em_handle) (struct rio_dev dev, u8 swport);
70a50ebd MP	254	};
	255
	256	/* Low-level architecture-dependent routines */
	257
	258	/**
	259	* struct rio_ops - Low-level RIO configuration space operations
	260	* @lcread: Callback to perform local (master port) read of config space.
	261	* @lcwrite: Callback to perform local (master port) write of config space.
	262	* @cread: Callback to perform network read of config space.
	263	* @cwrite: Callback to perform network write of config space.
	264	* @dsend: Callback to send a doorbell message.
e5cabeb3	265	* @pwenable: Callback to enable/disable port-write message handling.
70a50ebd MP	266	*/
70a50ebd MP	267	struct rio_ops {
ad1e9380 ZW	268	int (lcread) (struct rio_mport mport, int index, u32 offset, int len,
	269	u32 *data);
	270	int (lcwrite) (struct rio_mport mport, int index, u32 offset, int len,
	271	u32 data);
	272	int (cread) (struct rio_mport mport, int index, u16 destid,
	273	u8 hopcount, u32 offset, int len, u32 *data);
	274	int (cwrite) (struct rio_mport mport, int index, u16 destid,
	275	u8 hopcount, u32 offset, int len, u32 data);
	276	int (dsend) (struct rio_mport mport, int index, u16 destid, u16 data);
e5cabeb3	277	int (pwenable) (struct rio_mport mport, int enable);
70a50ebd MP	278	};
	279
	280	#define RIO_RESOURCE_MEM 0x00000100
	281	#define RIO_RESOURCE_DOORBELL 0x00000200
	282	#define RIO_RESOURCE_MAILBOX 0x00000400
	283
	284	#define RIO_RESOURCE_CACHEABLE 0x00010000
	285	#define RIO_RESOURCE_PCI 0x00020000
	286
	287	#define RIO_RESOURCE_BUSY 0x80000000
	288
	289	/**
	290	* struct rio_driver - RIO driver info
	291	* @node: Node in list of drivers
	292	* @name: RIO driver name
	293	* @id_table: RIO device ids to be associated with this driver
	294	* @probe: RIO device inserted
	295	* @remove: RIO device removed
	296	* @suspend: RIO device suspended
	297	* @resume: RIO device awakened
	298	* @enable_wake: RIO device enable wake event
	299	* @driver: LDM driver struct
	300	*
	301	* Provides info on a RIO device driver for insertion/removal and
	302	* power management purposes.
	303	*/
	304	struct rio_driver {
	305	struct list_head node;
	306	char *name;
	307	const struct rio_device_id *id_table;
	308	int (probe) (struct rio_dev dev, const struct rio_device_id * id);
	309	void (remove) (struct rio_dev dev);
	310	int (suspend) (struct rio_dev dev, u32 state);
	311	int (resume) (struct rio_dev dev);
	312	int (enable_wake) (struct rio_dev dev, u32 state, int enable);
	313	struct device_driver driver;
	314	};
	315
	316	#define to_rio_driver(drv) container_of(drv,struct rio_driver, driver)
	317
	318	/**
	319	* struct rio_device_id - RIO device identifier
	320	* @did: RIO device ID
	321	* @vid: RIO vendor ID
	322	* @asm_did: RIO assembly device ID
	323	* @asm_vid: RIO assembly vendor ID
	324	*
	325	* Identifies a RIO device based on both the device/vendor IDs and
	326	* the assembly device/vendor IDs.
	327	*/
	328	struct rio_device_id {
	329	u16 did, vid;
	330	u16 asm_did, asm_vid;
	331	};
	332
	333	/**
058f88d6	334	* struct rio_switch_ops - Per-switch operations
70a50ebd MP	335	* @vid: RIO vendor ID
70a50ebd MP	336	* @did: RIO device ID
058f88d6	337	* @init_hook: Callback that performs switch device initialization
70a50ebd	338	*
058f88d6 AB	339	* Defines the operations that are necessary to initialize/control
058f88d6 AB	340	* a particular RIO switch device.
70a50ebd	341	*/
058f88d6	342	struct rio_switch_ops {
70a50ebd	343	u16 vid, did;
058f88d6	344	int (init_hook) (struct rio_dev rdev, int do_enum);
e5cabeb3 AB	345	};
	346
	347	union rio_pw_msg {
	348	struct {
	349	u32 comptag; /* Component Tag CSR */
	350	u32 errdetect; /* Port N Error Detect CSR */
	351	u32 is_port; /* Implementation specific + PortID */
	352	u32 ltlerrdet; /* LTL Error Detect CSR */
	353	u32 padding[12];
	354	} em;
	355	u32 raw[RIO_PW_MSG_SIZE/sizeof(u32)];
	356	};
	357
70a50ebd MP	358	/* Architecture and hardware-specific functions */
	359	extern int rio_init_mports(void);
	360	extern void rio_register_mport(struct rio_mport *);
	361	extern int rio_hw_add_outb_message(struct rio_mport , struct rio_dev , int,
	362	void *, size_t);
	363	extern int rio_hw_add_inb_buffer(struct rio_mport , int, void );
	364	extern void rio_hw_get_inb_message(struct rio_mport , int);
6978bbc0	365	extern int rio_open_inb_mbox(struct rio_mport , void , int, int);
70a50ebd	366	extern void rio_close_inb_mbox(struct rio_mport *, int);
6978bbc0	367	extern int rio_open_outb_mbox(struct rio_mport , void , int, int);
70a50ebd MP	368	extern void rio_close_outb_mbox(struct rio_mport *, int);
70a50ebd MP	369
70a50ebd	370	#endif /* LINUX_RIO_H */