1 /* $NetBSD: bhavar.h,v 1.6 1997/03/28 23:47:11 mycroft Exp $ */ 2 3 /* 4 * Copyright (c) 1994, 1996, 1997 Charles M. Hannum. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Charles M. Hannum. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Mail box defs etc. 34 * these could be bigger but we need the bha_softc to fit on a single page.. 35 */ 36 #define BHA_MBX_SIZE 32 /* mail box size (MAX 255 MBxs) */ 37 /* don't need that many really */ 38 #define BHA_CCB_MAX 32 /* store up to 32 CCBs at one time */ 39 #define CCB_HASH_SIZE 32 /* hash table size for phystokv */ 40 #define CCB_HASH_SHIFT 9 41 #define CCB_HASH(x) ((((long)(x))>>CCB_HASH_SHIFT) & (CCB_HASH_SIZE - 1)) 42 43 #define bha_nextmbx(wmb, mbx, mbio) \ 44 if ((wmb) == &(mbx)->mbio[BHA_MBX_SIZE - 1]) \ 45 (wmb) = &(mbx)->mbio[0]; \ 46 else \ 47 (wmb)++; 48 49 struct bha_mbx { 50 struct bha_mbx_out mbo[BHA_MBX_SIZE]; 51 struct bha_mbx_in mbi[BHA_MBX_SIZE]; 52 struct bha_mbx_out *cmbo; /* Collection Mail Box out */ 53 struct bha_mbx_out *tmbo; /* Target Mail Box out */ 54 struct bha_mbx_in *tmbi; /* Target Mail Box in */ 55 }; 56 57 struct bha_softc { 58 struct device sc_dev; 59 60 bus_space_tag_t sc_iot; 61 bus_space_handle_t sc_ioh; 62 void *sc_ih; 63 64 struct bha_mbx sc_mbx; /* all our mailboxes */ 65 #define wmbx (&sc->sc_mbx) 66 struct bha_ccb *sc_ccbhash[CCB_HASH_SIZE]; 67 TAILQ_HEAD(, bha_ccb) sc_free_ccb, sc_waiting_ccb; 68 int sc_numccbs, sc_mbofull; 69 struct scsi_link sc_link; /* prototype for devs */ 70 71 char sc_model[7], 72 sc_firmware[6]; 73 }; 74 75 struct bha_probe_data { 76 int sc_irq, sc_drq; 77 int sc_scsi_dev; /* adapters scsi id */ 78 int sc_iswide; /* adapter is wide */ 79 }; 80 81 #define ISWIDE(sc) (sc->sc_link.max_target >= 8) 82 83 int bha_find __P((bus_space_tag_t, bus_space_handle_t, 84 struct bha_probe_data *)); 85 void bha_attach __P((struct bha_softc *, struct bha_probe_data *)); 86 int bha_intr __P((void *)); 87 88 int bha_disable_isacompat __P((struct bha_softc *)); 89