189 lines
6.8 KiB
C
189 lines
6.8 KiB
C
/* $NetBSD: iopvar.h,v 1.6 2001/04/01 15:02:08 ad Exp $ */
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/*-
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* Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Andrew Doran.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _I2O_IOPVAR_H_
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#define _I2O_IOPVAR_H_
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#include "locators.h"
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/*
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* Transfer descriptor.
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*/
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struct iop_xfer {
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bus_dmamap_t ix_map;
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u_int ix_size;
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u_int ix_flags;
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};
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#define IX_IN 0x0001 /* Data transfer from IOP */
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#define IX_OUT 0x0002 /* Data transfer to IOP */
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/*
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* Message wrapper.
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*/
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struct iop_msg {
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SLIST_ENTRY(iop_msg) im_chain; /* Next free message */
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u_int im_flags; /* Control flags */
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u_int im_tctx; /* Transaction context */
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void *im_dvcontext; /* Un*x device context */
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struct i2o_reply *im_rb; /* Reply buffer */
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u_int im_reqstatus; /* Status from reply */
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struct iop_xfer im_xfer[IOP_MAX_MSG_XFERS];
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};
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#define IM_SYSMASK 0x00ff
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#define IM_REPLIED 0x0001 /* Message has been replied to */
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#define IM_ALLOCED 0x0002 /* This message wrapper is allocated */
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#define IM_SGLOFFADJ 0x0004 /* S/G list offset adjusted */
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#define IM_DISCARD 0x0008 /* Discard message wrapper once sent */
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#define IM_FAIL 0x0010 /* Transaction error returned */
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#define IM_USERMASK 0xff00
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#define IM_WAIT 0x0100 /* Wait (sleep) for completion */
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#define IM_POLL 0x0200 /* Wait (poll) for completion */
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#define IM_NOSTATUS 0x0400 /* Don't check status if waiting */
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#define IM_POLL_INTR 0x0800 /* Do send interrupt when polling */
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struct iop_initiator {
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LIST_ENTRY(iop_initiator) ii_list;
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LIST_ENTRY(iop_initiator) ii_hash;
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void (*ii_intr)(struct device *, struct iop_msg *, void *);
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int (*ii_reconfig)(struct device *);
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void (*ii_adjqparam)(struct device *, int);
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struct device *ii_dv;
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int ii_flags;
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int ii_ictx; /* Initiator context */
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int ii_tid;
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};
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#define II_DISCARD 0x0001 /* Don't track state; discard msg wrappers */
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#define II_CONFIGURED 0x0002 /* Already configured */
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#define II_UTILITY 0x0004 /* Utility initiator (not a real device) */
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#define IOP_ICTX 0
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#define IOP_INIT_CODE 0x80
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/*
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* Parameter group op (for async parameter retrievals).
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*/
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struct iop_pgop {
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struct i2o_param_op_list_header olh;
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struct i2o_param_op_all_template oat;
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} __attribute__ ((__packed__));
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/*
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* Per-IOP context.
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*/
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struct iop_softc {
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struct device sc_dv; /* generic device data */
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bus_space_handle_t sc_ioh; /* bus space handle */
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bus_space_tag_t sc_iot; /* bus space tag */
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bus_dma_tag_t sc_dmat; /* bus DMA tag */
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void *sc_ih; /* interrupt handler cookie */
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struct lock sc_conflock; /* autoconfiguration lock */
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bus_addr_t sc_memaddr; /* register window address */
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bus_size_t sc_memsize; /* register window size */
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struct i2o_hrt *sc_hrt; /* hardware resource table */
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struct iop_tidmap *sc_tidmap; /* tid map (per-lct-entry flags) */
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struct i2o_lct *sc_lct; /* logical configuration table */
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int sc_nlctent; /* number of LCT entries */
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int sc_flags; /* IOP-wide flags */
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int sc_maxib;
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int sc_maxob;
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int sc_curib;
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u_int32_t sc_chgind; /* autoconfig vs. LCT change ind. */
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LIST_HEAD(, iop_initiator) sc_iilist;/* initiator list */
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int sc_nii;
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int sc_nuii;
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struct iop_initiator sc_eventii;/* IOP event handler */
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struct proc *sc_reconf_proc;/* reconfiguration process */
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struct iop_msg *sc_ims;
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SLIST_HEAD(, iop_msg) sc_im_freelist;
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caddr_t sc_ptb;
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/*
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* Reply queue.
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*/
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bus_dmamap_t sc_rep_dmamap;
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int sc_rep_size;
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bus_addr_t sc_rep_phys;
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caddr_t sc_rep;
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bus_space_tag_t sc_bus_memt;
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bus_space_tag_t sc_bus_iot;
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struct i2o_status sc_status; /* status */
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};
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#define IOP_OPEN 0x01 /* Device interface open */
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#define IOP_HAVESTATUS 0x02 /* Successfully retrieved status */
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#define IOP_ONLINE 0x04 /* Can use ioctl interface */
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struct iop_attach_args {
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int ia_class; /* device class */
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int ia_tid; /* target ID */
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};
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#define iopcf_tid cf_loc[IOPCF_TID] /* TID */
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void iop_init(struct iop_softc *, const char *);
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int iop_intr(void *);
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int iop_lct_get(struct iop_softc *);
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int iop_param_op(struct iop_softc *, int, struct iop_initiator *, int,
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int, void *, int);
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int iop_print_ident(struct iop_softc *, int);
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int iop_simple_cmd(struct iop_softc *, int, int, int, int, int);
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void iop_strvis(struct iop_softc *, const char *, int, char *, int);
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void iop_initiator_register(struct iop_softc *, struct iop_initiator *);
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void iop_initiator_unregister(struct iop_softc *, struct iop_initiator *);
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struct iop_msg *iop_msg_alloc(struct iop_softc *, struct iop_initiator *, int);
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void iop_msg_free(struct iop_softc *, struct iop_msg *);
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int iop_msg_map(struct iop_softc *, struct iop_msg *, u_int32_t *, void *,
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int, int);
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int iop_msg_map_bio(struct iop_softc *, struct iop_msg *, u_int32_t *,
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void *, int, int);
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int iop_msg_post(struct iop_softc *, struct iop_msg *, void *, int);
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void iop_msg_unmap(struct iop_softc *, struct iop_msg *);
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int iop_util_abort(struct iop_softc *, struct iop_initiator *, int, int,
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int);
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int iop_util_claim(struct iop_softc *, struct iop_initiator *, int, int);
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int iop_util_eventreg(struct iop_softc *, struct iop_initiator *, int);
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#endif /* !_I2O_IOPVAR_H_ */
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