/* $NetBSD: adw.h,v 1.15 2019/12/15 16:48:27 tsutsui Exp $ */
/*
* Generic driver definitions and exported functions for the Advanced
* Systems Inc. SCSI controllers
*
* Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Author: Baldassare Dante Profeta <
[email protected]>
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef _ADVANSYS_WIDE_H_
#define _ADVANSYS_WIDE_H_
/******************************************************************************/
typedef int (* ADW_ISR_CALLBACK) (ADW_SOFTC *, ADW_SCSI_REQ_Q *);
typedef void (* ADW_ASYNC_CALLBACK) (ADW_SOFTC *, u_int8_t);
/*
* per request scatter-gather element limit
* We could have up to 256 SG lists.
*/
#define ADW_MAX_SG_LIST 255
/*
* Scatter-Gather Definitions per request.
*/
#define NO_OF_SG_PER_BLOCK 15
/* Number of SG blocks needed. */
#define ADW_NUM_SG_BLOCK \
((ADW_MAX_SG_LIST + (NO_OF_SG_PER_BLOCK - 1))/NO_OF_SG_PER_BLOCK)
struct adw_ccb {
ADW_SCSI_REQ_Q scsiq;
ADW_SG_BLOCK sg_block[ADW_NUM_SG_BLOCK];
struct scsi_sense_data scsi_sense;
TAILQ_ENTRY(adw_ccb) chain;
struct adw_ccb *nexthash;
u_int32_t hashkey;
struct scsipi_xfer *xs; /* the scsipi_xfer for this cmd */
int flags; /* see below */
int timeout;
/*
* This DMA map maps the buffer involved in the transfer.
*/
bus_dmamap_t dmamap_xfer;
};
typedef struct adw_ccb ADW_CCB;
/* flags for ADW_CCB */
#define CCB_ALLOC 0x01
#define CCB_ABORTING 0x02
#define CCB_ABORTED 0x04
#define ADW_MAX_CCB 63 /* Max. number commands per device (63) */
struct adw_control {
ADW_CCB ccbs[ADW_MAX_CCB]; /* all our control blocks */
ADW_CARRIER *carriers; /* all our carriers */
};
/*
* Offset of a CCB from the beginning of the control DMA mapping.
*/
#define ADW_CCB_OFF(c) (offsetof(struct adw_control, ccbs[0]) + \
(((u_long)(c)) - ((u_long)&sc->sc_control->ccbs[0])))
/******************************************************************************/
int adw_init(ADW_SOFTC *);
void adw_attach(ADW_SOFTC *);
int adw_intr(void *);
ADW_CCB *adw_ccb_phys_kv(ADW_SOFTC *, u_int32_t);
/******************************************************************************/
#endif /* _ADVANSYS_ADW_H_ */
