Annotation of sys/dev/ic/bhavar.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: bhavar.h,v 1.2 2002/03/14 01:26:54 millert Exp $ */
! 2: /* $NetBSD: bhavar.h,v 1.12 1998/11/19 21:53:00 thorpej Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 1998 The NetBSD Foundation, Inc.
! 6: * All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to The NetBSD Foundation
! 9: * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
! 10: * Simulation Facility, NASA Ames Research Center.
! 11: *
! 12: * Redistribution and use in source and binary forms, with or without
! 13: * modification, are permitted provided that the following conditions
! 14: * are met:
! 15: * 1. Redistributions of source code must retain the above copyright
! 16: * notice, this list of conditions and the following disclaimer.
! 17: * 2. Redistributions in binary form must reproduce the above copyright
! 18: * notice, this list of conditions and the following disclaimer in the
! 19: * documentation and/or other materials provided with the distribution.
! 20: * 3. All advertising materials mentioning features or use of this software
! 21: * must display the following acknowledgement:
! 22: * This product includes software developed by the NetBSD
! 23: * Foundation, Inc. and its contributors.
! 24: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 25: * contributors may be used to endorse or promote products derived
! 26: * from this software without specific prior written permission.
! 27: *
! 28: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 29: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 30: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 31: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
! 32: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 33: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 34: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 35: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 36: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 37: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 38: * POSSIBILITY OF SUCH DAMAGE.
! 39: */
! 40:
! 41: #include <sys/queue.h>
! 42:
! 43: /*
! 44: * Mail box defs etc.
! 45: * these could be bigger but we need the bha_softc to fit on a single page..
! 46: */
! 47: #define BHA_MBX_SIZE 32 /* mail box size (MAX 255 MBxs) */
! 48: /* don't need that many really */
! 49: #define BHA_CCB_MAX 32 /* store up to 32 CCBs at one time */
! 50: #define CCB_HASH_SIZE 32 /* hash table size for phystokv */
! 51: #define CCB_HASH_SHIFT 9
! 52: #define CCB_HASH(x) ((((long)(x))>>CCB_HASH_SHIFT) & (CCB_HASH_SIZE - 1))
! 53:
! 54: #define bha_nextmbx(wmb, mbx, mbio) \
! 55: if ((wmb) == &(mbx)->mbio[BHA_MBX_SIZE - 1]) \
! 56: (wmb) = &(mbx)->mbio[0]; \
! 57: else \
! 58: (wmb)++;
! 59:
! 60: struct bha_mbx {
! 61: struct bha_mbx_out mbo[BHA_MBX_SIZE];
! 62: struct bha_mbx_in mbi[BHA_MBX_SIZE];
! 63: struct bha_mbx_out *cmbo; /* Collection Mail Box out */
! 64: struct bha_mbx_out *tmbo; /* Target Mail Box out */
! 65: struct bha_mbx_in *tmbi; /* Target Mail Box in */
! 66: };
! 67:
! 68: struct bha_control {
! 69: struct bha_mbx bc_mbx; /* all our mailboxes */
! 70: struct bha_ccb bc_ccbs[BHA_CCB_MAX]; /* all our control blocks */
! 71: };
! 72:
! 73: struct bha_softc {
! 74: struct device sc_dev;
! 75:
! 76: bus_space_tag_t sc_iot;
! 77: bus_space_handle_t sc_ioh;
! 78: bus_dma_tag_t sc_dmat;
! 79: bus_dmamap_t sc_dmamap_control; /* maps the control structures */
! 80: int sc_dmaflags; /* bus-specific dma map flags */
! 81: void *sc_ih;
! 82:
! 83: struct bha_control *sc_control; /* control structures */
! 84: int sc_iswide;
! 85:
! 86: #define wmbx (&sc->sc_control->bc_mbx)
! 87:
! 88: struct bha_ccb *sc_ccbhash[CCB_HASH_SIZE];
! 89: TAILQ_HEAD(, bha_ccb) sc_free_ccb, sc_waiting_ccb;
! 90: int sc_mbofull;
! 91: struct scsi_link sc_link; /* prototype for devs */
! 92: struct scsi_adapter sc_adapter;
! 93:
! 94: LIST_HEAD(, scsi_xfer) sc_queue;
! 95: struct scsi_xfer *sc_queuelast;
! 96:
! 97: char sc_model[7],
! 98: sc_firmware[6];
! 99: };
! 100:
! 101: /*
! 102: * Offset of a Mail Box In from the beginning of the control DMA mapping.
! 103: */
! 104: #define BHA_MBI_OFF(m) (offsetof(struct bha_control, bc_mbx.mbi[0]) + \
! 105: (((u_long)(m)) - ((u_long)&wmbx->mbi[0])))
! 106:
! 107: /*
! 108: * Offset of a Mail Box Out from the beginning of the control DMA mapping.
! 109: */
! 110: #define BHA_MBO_OFF(m) (offsetof(struct bha_control, bc_mbx.mbo[0]) + \
! 111: (((u_long)(m)) - ((u_long)&wmbx->mbo[0])))
! 112:
! 113: /*
! 114: * Offset of a CCB from the beginning of the control DMA mapping.
! 115: */
! 116: #define BHA_CCB_OFF(c) (offsetof(struct bha_control, bc_ccbs[0]) + \
! 117: (((u_long)(c)) - ((u_long)&sc->sc_control->bc_ccbs[0])))
! 118:
! 119: struct bha_probe_data {
! 120: int sc_irq, sc_drq;
! 121: int sc_scsi_dev; /* adapters scsi id */
! 122: int sc_iswide; /* adapter is wide */
! 123: };
! 124:
! 125: /*#define ISWIDE(sc) (sc->sc_link.max_target >= 8)*/
! 126:
! 127: int bha_cmd(bus_space_tag_t, bus_space_handle_t, struct bha_softc *,
! 128: int, u_char *, int, u_char *);
! 129: int bha_find(bus_space_tag_t, bus_space_handle_t,
! 130: struct bha_probe_data *);
! 131: void bha_attach(struct bha_softc *, struct bha_probe_data *);
! 132: int bha_intr(void *);
! 133:
! 134: int bha_disable_isacompat(struct bha_softc *);
! 135: void bha_inquire_setup_information(struct bha_softc *);
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