153 lines
4.5 KiB
C
153 lines
4.5 KiB
C
/* $NetBSD: amrvar.h,v 1.10 2015/03/02 15:26:57 christos Exp $ */
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/*-
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* Copyright (c) 2002, 2003 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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*
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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 _PCI_AMRVAR_H_
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#define _PCI_AMRVAR_H_
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#define AMR_MAX_UNITS 16
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#define AMR_WDOG_TICKS (hz * 5)
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#define AMR_NCCB_RESV 2
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#define AMR_ENQUIRY_BUFSIZE 2048
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#define AMR_SGL_SIZE (sizeof(struct amr_sgentry) * AMR_MAX_SEGS)
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#define AMR_TIMEOUT 30
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/*
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* Logical drive information.
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*/
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struct amr_logdrive {
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u_int al_size;
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u_short al_state;
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u_short al_properties;
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device_t al_dv;
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};
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/*
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* Per-controller state.
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*/
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struct amr_softc {
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device_t amr_dv;
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bus_space_tag_t amr_iot;
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bus_space_handle_t amr_ioh;
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bus_size_t amr_ios;
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bus_dma_tag_t amr_dmat;
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pci_chipset_tag_t amr_pc;
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void *amr_ih;
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struct lwp *amr_thread;
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int amr_flags;
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struct amr_mailbox *amr_mbox;
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bus_addr_t amr_mbox_paddr;
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bus_dmamap_t amr_dmamap;
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bus_dma_segment_t amr_dmaseg;
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int amr_dmasize;
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void *amr_enqbuf;
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struct amr_sgentry *amr_sgls;
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bus_addr_t amr_sgls_paddr;
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struct amr_ccb *amr_ccbs;
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SLIST_HEAD(, amr_ccb) amr_ccb_freelist;
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SIMPLEQ_HEAD(, amr_ccb) amr_ccb_queue;
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TAILQ_HEAD(, amr_ccb) amr_ccb_active;
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int amr_maxqueuecnt;
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int (*amr_get_work)(struct amr_softc *, struct amr_mailbox_resp *);
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int (*amr_submit)(struct amr_softc *sc, struct amr_ccb *);
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kmutex_t amr_mutex;
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int amr_numdrives;
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struct amr_logdrive amr_drive[AMR_MAX_UNITS];
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};
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/* What resources are allocated? */
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#define AMRF_INTR 0x00000001
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#define AMRF_DMA_LOAD 0x00000002
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#define AMRF_DMA_MAP 0x00000004
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#define AMRF_DMA_ALLOC 0x00000008
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#define AMRF_DMA_CREATE 0x00000010
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#define AMRF_PCI_INTR 0x00000020
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#define AMRF_PCI_REGS 0x00000040
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#define AMRF_CCBS 0x00000080
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#define AMRF_ENQBUF 0x00000100
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#define AMRF_THREAD 0x00000200
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/* General flags. */
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#define AMRF_THREAD_EXIT 0x00010000
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#define AMRF_OPEN 0x00020000
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/*
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* Command control block.
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*/
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struct amr_ccb {
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union {
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SIMPLEQ_ENTRY(amr_ccb) simpleq;
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SLIST_ENTRY(amr_ccb) slist;
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TAILQ_ENTRY(amr_ccb) tailq;
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} ac_chain;
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u_int ac_flags;
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u_int ac_status;
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u_int ac_ident;
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u_int ac_xfer_size;
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time_t ac_start_time;
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bus_dmamap_t ac_xfer_map;
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void (*ac_handler)(struct amr_ccb *);
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void *ac_context;
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device_t ac_dv;
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struct amr_mailbox_cmd ac_cmd;
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kmutex_t ac_mutex;
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kcondvar_t ac_cv;
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};
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#define AC_XFER_IN 0x01 /* Map describes inbound xfer */
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#define AC_XFER_OUT 0x02 /* Map describes outbound xfer */
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#define AC_COMPLETE 0x04 /* Command completed */
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#define AC_ACTIVE 0x08 /* Command active */
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#define AC_NOSGL 0x10 /* No scatter/gather list */
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#define AC_MOAN 0x20 /* We have already moaned */
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struct amr_attach_args {
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int amra_unit;
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};
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int amr_ccb_alloc(struct amr_softc *, struct amr_ccb **);
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void amr_ccb_enqueue(struct amr_softc *, struct amr_ccb *);
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void amr_ccb_free(struct amr_softc *, struct amr_ccb *);
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int amr_ccb_map(struct amr_softc *, struct amr_ccb *, void *, int, int);
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int amr_ccb_poll(struct amr_softc *, struct amr_ccb *, int);
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void amr_ccb_unmap(struct amr_softc *, struct amr_ccb *);
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int amr_ccb_wait(struct amr_softc *, struct amr_ccb *);
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const char *amr_drive_state(int, int *);
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extern int amr_max_xfer;
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#endif /* !_PCI_AMRVAR_H_ */
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