/*
 *    Disk Array driver for Compaq SMART2 Controllers
 *    Copyright 1998 Compaq Computer Corporation
 *
 *    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.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
 *    NON INFRINGEMENT.  See the GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *    Questions/Comments/Bugfixes to arrays@compaq.com
 *
 *    If you want to make changes, improve or add functionality to this
 *    driver, you'll probably need the Compaq Array Controller Interface
 *    Specificiation (Document number ECG086/1198)
 */
#ifndef IDA_IOCTL_H
#define IDA_IOCTL_H

#include "ida_cmd.h"
#include "cpqarray.h"

#define IDAGETDRVINFO		0x27272828
#define IDAPASSTHRU		0x28282929
#define IDAGETCTLRSIG		0x29293030
#define IDAREVALIDATEVOLS	0x30303131
#define IDADRIVERVERSION	0x31313232

/*
 * Normally, the ioctl determines the logical unit for this command by
 * the major,minor number of the fd passed to ioctl.  If you need to send
 * a command to a different/nonexistant unit (such as during config), you
 * can override the normal behavior by setting the unit valid bit. (Normally,
 * it should be zero) The controller the command is sent to is still
 * determined by the major number of the open device.
 */

#define UNITVALID	0x80
typedef struct {
	__u8	cmd;
	__u8	rcode;
	__u8	unit;
	__u32	blk;
	__u16	blk_cnt;

/* currently, sg_cnt is assumed to be 1: only the 0th element of sg is used */
	struct {
		void	*addr;
		size_t	size;
	} sg[SG_MAX];
	int	sg_cnt;

	union ctlr_cmds {
		drv_info_t		drv;
		unsigned char		buf[512];

		id_ctlr_t		id_ctlr;
		drv_param_t		drv_param;
		id_log_drv_t		id_log_drv;
		id_log_drv_ext_t	id_log_drv_ext;
		sense_log_drv_stat_t	sense_log_drv_stat;
		id_phys_drv_t		id_phys_drv;
		blink_drv_leds_t	blink_drv_leds;
		sense_blink_leds_t	sense_blink_leds;
		config_t		config;
		reorder_log_drv_t	reorder_log_drv;
		label_log_drv_t		label_log_drv;
		surf_delay_t		surf_delay;
		overhead_delay_t	overhead_delay;
		mp_delay_t		mp_delay;
		scsi_param_t		scsi_param;
	} c;
} ida_ioctl_t;

#endif /* IDA_IOCTL_H */
