/* $NetBSD: dptvar.h,v 1.16 2012/10/27 17:18:20 chs Exp $ */
/*
* Copyright (c) 1999, 2000, 2001 Andrew Doran <
[email protected]>
* 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.
*
*/
#ifndef _IC_DPTVAR_H_
#define _IC_DPTVAR_H_ 1
/* Software parameters */
#define DPT_SG_SIZE 17
#define DPT_MAX_XFER 65536
#define DPT_MAX_CCBS 256
#define DPT_ABORT_TIMEOUT 2000 /* milliseconds */
#define DPT_SCRATCH_SIZE 256 /* bytes */
#define CCB_OFF(sc,m) ((u_long)(m) - (u_long)((sc)->sc_ccbs))
#define CCB_ABORT 0x01 /* abort has been issued on this CCB */
#define CCB_INTR 0x02 /* HBA interrupted for this CCB */
#define CCB_PRIVATE 0x04 /* ours; don't talk to scsipi when done */
#define CCB_WAIT 0x08 /* sleeping on completion */
struct dpt_ccb {
/* Data that will be touched by the HBA */
struct eata_cp ccb_eata_cp; /* EATA command packet */
struct eata_sg ccb_sg[DPT_SG_SIZE]; /* SG element list */
struct scsi_sense_data ccb_sense; /* SCSI sense data on error */
/* Data that will not be touched by the HBA */
volatile int ccb_flg; /* CCB flags */
int ccb_timeout; /* timeout in ms */
u_int32_t ccb_ccbpa; /* physical addr of this CCB */
bus_dmamap_t ccb_dmamap_xfer; /* dmamap for data xfers */
int ccb_hba_status; /* from status packet */
int ccb_scsi_status; /* from status packet */
int ccb_id; /* unique ID of this CCB */
SLIST_ENTRY(dpt_ccb) ccb_chain; /* link to next CCB */
struct scsipi_xfer *ccb_xs; /* initiating SCSI command */
struct eata_sp *ccb_savesp; /* saved status packet */
};
struct dpt_softc {
device_t sc_dev; /* generic device data */
kmutex_t sc_lock;
struct scsipi_adapter sc_adapt; /* scsipi adapter */
struct scsipi_channel sc_chans[3]; /* each channel */
bus_space_handle_t sc_ioh; /* bus space handle */
bus_space_tag_t sc_iot; /* bus space tag */
bus_dma_tag_t sc_dmat; /* bus DMA tag */
bus_dmamap_t sc_dmamap; /* maps the CCBs */
void *sc_ih; /* interrupt handler cookie */
struct dpt_ccb *sc_ccbs; /* all our CCBs */
struct eata_sp *sc_stp; /* EATA status packet */
int sc_stpoff; /* status packet offset in dmamap */
u_int32_t sc_stppa; /* status packet physical address */
void * sc_scr; /* scratch area */
int sc_scroff; /* scratch area offset in dmamap */
u_int32_t sc_scrpa; /* scratch area physical address */
int sc_hbaid[3]; /* ID of HBA on each channel */
int sc_nccbs; /* number of CCBs available */
SLIST_HEAD(, dpt_ccb) sc_ccb_free;/* free ccb list */
struct eata_cfg sc_ec; /* EATA configuration data */
int sc_bustype; /* SysInfo bus type */
int sc_isadrq; /* ISA DRQ */
int sc_isairq; /* ISA IRQ */
int sc_isaport; /* ISA port */
};
void dpt_init(struct dpt_softc *, const char *);
int dpt_intr(void *);
int dpt_readcfg(struct dpt_softc *);
#endif /* !defined _IC_DPTVAR_H_ */
