xref: /src/sys/dev/pci/tweio.h

/*	$NetBSD: tweio.h,v 1.2 2003/09/22 01:44:57 thorpej Exp $	*/
/*-
 * Copyright (c) 2000 Michael Smith
 * Copyright (c) 2000 BSDi
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * from FreeBSD: tweio.h,v 1.1 2000/10/25 06:59:05 msmith Exp
 */

#include <sys/ioccom.h>

/*
 * User-space command
 *
 * Note that the command's scatter/gather list will be computed by the
 * driver, and cannot be filled in by the consumer.
 */
struct twe_usercommand {
	struct twe_cmd	tu_cmd;		/* command ready for the controller */
	void		*tu_data;	/* pointer to data in userspace */
	size_t		tu_size;	/* userspace data length */
};

#define TWEIO_COMMAND	_IOWR('T', 100, struct twe_usercommand)

/*
 * Command queue statistics
 */
#define	TWEQ_FREE	0
#define	TWEQ_BIO	1
#define	TWEQ_READY	2
#define	TWEQ_BUSY	3
#define	TWEQ_COMPLETE	4
#define	TWEQ_COUNT	5	/* total number of queues */

struct twe_qstat {
	u_int32_t	q_length;
	u_int32_t	q_max;
};

/*
 * Statistics request
 */
union twe_statrequest {
	u_int32_t		ts_item;
	struct twe_qstat	ts_qstat;
};

#define	TWEIO_STATS	_IOWR('T', 101, union twe_statrequest)

/*
 * AEN listen
 */
#define	TWEIO_AEN_POLL	_IOR('T', 102, int)
#define	TWEIO_AEN_WAIT	_IOR('T', 103, int)

/*
 * Controller parameter access
 */
struct twe_paramcommand {
	u_int16_t	tp_table_id;
	u_int8_t	tp_param_id;
	void		*tp_data;
	u_int8_t	tp_size;
};

#define	TWEIO_SET_PARAM	_IOW('T', 104, struct twe_paramcommand)
#define	TWEIO_GET_PARAM	_IOW('T', 105, struct twe_paramcommand)

/*
 * Request a controller soft-reset
 */
#define	TWEIO_RESET	_IO('T', 106)

/*
 * Request a drive addition or deletion
 */
#define	TWEIO_ADD_UNIT	_IOW('U', 107, int)
#define	TWEIO_DEL_UNIT	_IOW('U', 108, int)