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/* $OpenBSD: iopvar.h,v 1.10 2009/04/02 18:44:49 oga Exp $ */
/* $NetBSD: iopvar.h,v 1.5 2001/03/20 13:01:49 ad Exp $ */
/*-
* Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Andrew Doran.
*
* 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 _I2O_IOPVAR_H_
#define _I2O_IOPVAR_H_
#include <sys/rwlock.h>
/*
* Transfer descriptor.
*/
struct iop_xfer {
bus_dmamap_t ix_map;
u_int ix_size;
u_int ix_flags;
};
#define IX_IN 0x0001 /* Data transfer from IOP */
#define IX_OUT 0x0002 /* Data transfer to IOP */
/*
* Message wrapper.
*/
struct iop_msg {
SLIST_ENTRY(iop_msg) im_chain; /* Next free message */
u_int im_flags; /* Control flags */
u_int im_tctx; /* Transaction context */
void *im_dvcontext; /* Un*x device context */
struct i2o_reply *im_rb; /* Reply buffer */
u_int im_reqstatus; /* Status from reply */
struct iop_xfer im_xfer[IOP_MAX_MSG_XFERS];
};
#define IM_SYSMASK 0x00ff
#define IM_REPLIED 0x0001 /* Message has been replied to */
#define IM_ALLOCED 0x0002 /* This message wrapper is allocated */
#define IM_SGLOFFADJ 0x0004 /* S/G list offset adjusted */
#define IM_DISCARD 0x0008 /* Discard message wrapper once sent */
#define IM_FAIL 0x0010 /* Transaction error returned */
#define IM_USERMASK 0xff00
#define IM_WAIT 0x0100 /* Wait (sleep) for completion */
#define IM_POLL 0x0200 /* Wait (poll) for completion */
#define IM_NOSTATUS 0x0400 /* Don't check status if waiting */
#define IM_POLL_INTR 0x0800 /* Do send interrupt when polling */
struct iop_initiator {
LIST_ENTRY(iop_initiator) ii_list;
LIST_ENTRY(iop_initiator) ii_hash;
void (*ii_intr)(struct device *, struct iop_msg *, void *);
int (*ii_reconfig)(struct device *);
void (*ii_adjqparam)(struct device *, int);
struct device *ii_dv;
int ii_flags;
int ii_ictx; /* Initiator context */
int ii_tid;
};
#define II_DISCARD 0x0001 /* Don't track state; discard msg wrappers */
#define II_CONFIGURED 0x0002 /* Already configured */
#define II_UTILITY 0x0004 /* Utility initiator (not a real device) */
#define IOP_ICTX 0
#define IOP_INIT_CODE 0x80
/*
* Parameter group op (for async parameter retrievals).
*/
struct iop_pgop {
struct i2o_param_op_list_header olh;
struct i2o_param_op_all_template oat;
} __packed;
/*
* Per-IOP context.
*/
struct iop_softc {
struct device sc_dv; /* generic device data */
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 */
void *sc_ih; /* interrupt handler cookie */
struct rwlock sc_conflock; /* autoconfiguration lock */
bus_addr_t sc_memaddr; /* register window address */
bus_size_t sc_memsize; /* register window size */
struct i2o_hrt *sc_hrt; /* hardware resource table */
struct iop_tidmap *sc_tidmap; /* tid map (per-lct-entry flags) */
struct i2o_lct *sc_lct; /* logical configuration table */
int sc_nlctent; /* number of LCT entries */
int sc_flags; /* IOP-wide flags */
int sc_maxib;
int sc_maxob;
int sc_curib;
u_int32_t sc_chgind; /* autoconfig vs. LCT change ind. */
LIST_HEAD(, iop_initiator) sc_iilist;/* initiator list */
int sc_nii;
int sc_nuii;
struct iop_initiator sc_eventii;/* IOP event handler */
struct proc *sc_reconf_proc;/* reconfiguration process */
struct iop_msg *sc_ims;
SLIST_HEAD(, iop_msg) sc_im_freelist;
caddr_t sc_ptb;
bus_dmamap_t sc_scr_dmamap; /* Scratch DMA map */
bus_dma_segment_t sc_scr_seg[1];/* Scratch DMA segment */
caddr_t sc_scr; /* Scratch memory va */
/*
* Reply queue.
*/
bus_dmamap_t sc_rep_dmamap;
int sc_rep_size;
bus_addr_t sc_rep_phys;
caddr_t sc_rep;
bus_space_tag_t sc_bus_memt;
bus_space_tag_t sc_bus_iot;
struct i2o_status sc_status; /* status */
};
#define IOP_OPEN 0x01 /* Device interface open */
#define IOP_HAVESTATUS 0x02 /* Successfully retrieved status */
#define IOP_ONLINE 0x04 /* Can use ioctl interface */
#define IOPCF_TID 0
#define IOPCF_TID_DEFAULT -1
struct iop_attach_args {
int ia_class; /* device class */
int ia_tid; /* target ID */
};
#define iopcf_tid cf_loc[IOPCF_TID] /* TID */
void iop_init(struct iop_softc *, const char *);
int iop_intr(void *);
int iop_lct_get(struct iop_softc *);
int iop_param_op(struct iop_softc *, int, struct iop_initiator *, int,
int, void *, size_t);
int iop_print_ident(struct iop_softc *, int);
int iop_simple_cmd(struct iop_softc *, int, int, int, int, int);
void iop_strvis(struct iop_softc *, const char *, int, char *, int);
void iop_initiator_register(struct iop_softc *, struct iop_initiator *);
void iop_initiator_unregister(struct iop_softc *, struct iop_initiator *);
struct iop_msg *iop_msg_alloc(struct iop_softc *, struct iop_initiator *,
int);
void iop_msg_free(struct iop_softc *, struct iop_msg *);
int iop_msg_map(struct iop_softc *, struct iop_msg *, u_int32_t *, void *,
size_t, int);
int iop_msg_map_bio(struct iop_softc *, struct iop_msg *, u_int32_t *,
void *, int, int);
int iop_msg_post(struct iop_softc *, struct iop_msg *, void *, int);
void iop_msg_unmap(struct iop_softc *, struct iop_msg *);
int iop_util_abort(struct iop_softc *, struct iop_initiator *, int, int,
int);
int iop_util_claim(struct iop_softc *, struct iop_initiator *, int, int);
int iop_util_eventreg(struct iop_softc *, struct iop_initiator *, int);
#endif /* !_I2O_IOPVAR_H_ */
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