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tweio.h revision 1.2 
      1 /*	$NetBSD: tweio.h,v 1.2 2003/09/22 01:44:57 thorpej Exp $	*/
      2 /*-
      3  * Copyright (c) 2000 Michael Smith
      4  * Copyright (c) 2000 BSDi
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  *
     28  * from FreeBSD: tweio.h,v 1.1 2000/10/25 06:59:05 msmith Exp
     29  */
     30 
     31 #include <sys/ioccom.h>
     32 
     33 /*
     34  * User-space command
     35  *
     36  * Note that the command's scatter/gather list will be computed by the
     37  * driver, and cannot be filled in by the consumer.
     38  */
     39 struct twe_usercommand {
     40 	struct twe_cmd	tu_cmd;		/* command ready for the controller */
     41 	void		*tu_data;	/* pointer to data in userspace */
     42 	size_t		tu_size;	/* userspace data length */
     43 };
     44 
     45 #define TWEIO_COMMAND	_IOWR('T', 100, struct twe_usercommand)
     46 
     47 /*
     48  * Command queue statistics
     49  */
     50 #define	TWEQ_FREE	0
     51 #define	TWEQ_BIO	1
     52 #define	TWEQ_READY	2
     53 #define	TWEQ_BUSY	3
     54 #define	TWEQ_COMPLETE	4
     55 #define	TWEQ_COUNT	5	/* total number of queues */
     56 
     57 struct twe_qstat {
     58 	u_int32_t	q_length;
     59 	u_int32_t	q_max;
     60 };
     61 
     62 /*
     63  * Statistics request
     64  */
     65 union twe_statrequest {
     66 	u_int32_t		ts_item;
     67 	struct twe_qstat	ts_qstat;
     68 };
     69 
     70 #define	TWEIO_STATS	_IOWR('T', 101, union twe_statrequest)
     71 
     72 /*
     73  * AEN listen
     74  */
     75 #define	TWEIO_AEN_POLL	_IOR('T', 102, int)
     76 #define	TWEIO_AEN_WAIT	_IOR('T', 103, int)
     77 
     78 /*
     79  * Controller parameter access
     80  */
     81 struct twe_paramcommand {
     82 	u_int16_t	tp_table_id;
     83 	u_int8_t	tp_param_id;
     84 	void		*tp_data;
     85 	u_int8_t	tp_size;
     86 };
     87 
     88 #define	TWEIO_SET_PARAM	_IOW('T', 104, struct twe_paramcommand)
     89 #define	TWEIO_GET_PARAM	_IOW('T', 105, struct twe_paramcommand)
     90 
     91 /*
     92  * Request a controller soft-reset
     93  */
     94 #define	TWEIO_RESET	_IO('T', 106)
     95 
     96 /*
     97  * Request a drive addition or deletion
     98  */
     99 #define	TWEIO_ADD_UNIT	_IOW('U', 107, int)
    100 #define	TWEIO_DEL_UNIT	_IOW('U', 108, int)
    101