bhavar.h revision 1.10
1 /* $NetBSD: bhavar.h,v 1.10 1998/02/06 23:06:48 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * Copyright (c) 1994, 1996, 1997 Charles M. Hannum. All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by Charles M. Hannum. 54 * 4. The name of the author may not be used to endorse or promote products 55 * derived from this software without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 62 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 66 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 67 */ 68 69 #include <sys/queue.h> 70 71 /* 72 * Mail box defs etc. 73 * these could be bigger but we need the bha_softc to fit on a single page.. 74 */ 75 #define BHA_MBX_SIZE 32 /* mail box size (MAX 255 MBxs) */ 76 /* don't need that many really */ 77 #define BHA_CCB_MAX 32 /* store up to 32 CCBs at one time */ 78 #define CCB_HASH_SIZE 32 /* hash table size for phystokv */ 79 #define CCB_HASH_SHIFT 9 80 #define CCB_HASH(x) ((((long)(x))>>CCB_HASH_SHIFT) & (CCB_HASH_SIZE - 1)) 81 82 #define bha_nextmbx(wmb, mbx, mbio) \ 83 if ((wmb) == &(mbx)->mbio[BHA_MBX_SIZE - 1]) \ 84 (wmb) = &(mbx)->mbio[0]; \ 85 else \ 86 (wmb)++; 87 88 struct bha_mbx { 89 struct bha_mbx_out mbo[BHA_MBX_SIZE]; 90 struct bha_mbx_in mbi[BHA_MBX_SIZE]; 91 struct bha_mbx_out *cmbo; /* Collection Mail Box out */ 92 struct bha_mbx_out *tmbo; /* Target Mail Box out */ 93 struct bha_mbx_in *tmbi; /* Target Mail Box in */ 94 }; 95 96 struct bha_control { 97 struct bha_mbx bc_mbx; /* all our mailboxes */ 98 struct bha_ccb bc_ccbs[BHA_CCB_MAX]; /* all our control blocks */ 99 }; 100 101 struct bha_softc { 102 struct device sc_dev; 103 104 bus_space_tag_t sc_iot; 105 bus_space_handle_t sc_ioh; 106 bus_dma_tag_t sc_dmat; 107 bus_dmamap_t sc_dmamap_control; /* maps the control structures */ 108 int sc_dmaflags; /* bus-specific dma map flags */ 109 void *sc_ih; 110 111 struct bha_control *sc_control; /* control structures */ 112 113 #define wmbx (&sc->sc_control->bc_mbx) 114 115 struct bha_ccb *sc_ccbhash[CCB_HASH_SIZE]; 116 TAILQ_HEAD(, bha_ccb) sc_free_ccb, sc_waiting_ccb; 117 int sc_mbofull; 118 struct scsipi_link sc_link; /* prototype for devs */ 119 120 LIST_HEAD(, scsipi_xfer) sc_queue; 121 struct scsipi_xfer *sc_queuelast; 122 123 char sc_model[7], 124 sc_firmware[6]; 125 }; 126 127 /* 128 * Offset of a Mail Box In from the beginning of the control DMA mapping. 129 */ 130 #define BHA_MBI_OFF(m) (offsetof(struct bha_control, bc_mbx.mbi[0]) + \ 131 (((u_long)(m)) - ((u_long)&wmbx->mbi[0]))) 132 133 /* 134 * Offset of a Mail Box Out from the beginning of the control DMA mapping. 135 */ 136 #define BHA_MBO_OFF(m) (offsetof(struct bha_control, bc_mbx.mbo[0]) + \ 137 (((u_long)(m)) - ((u_long)&wmbx->mbo[0]))) 138 139 /* 140 * Offset of a CCB from the beginning of the control DMA mapping. 141 */ 142 #define BHA_CCB_OFF(c) (offsetof(struct bha_control, bc_ccbs[0]) + \ 143 (((u_long)(c)) - ((u_long)&sc->sc_control->bc_ccbs[0]))) 144 145 struct bha_probe_data { 146 int sc_irq, sc_drq; 147 int sc_scsi_dev; /* adapters scsi id */ 148 int sc_iswide; /* adapter is wide */ 149 }; 150 151 #define ISWIDE(sc) (sc->sc_link.scsipi_scsi.max_target >= 8) 152 153 int bha_find __P((bus_space_tag_t, bus_space_handle_t, 154 struct bha_probe_data *)); 155 void bha_attach __P((struct bha_softc *, struct bha_probe_data *)); 156 int bha_intr __P((void *)); 157 158 int bha_disable_isacompat __P((struct bha_softc *)); 159 void bha_inquire_setup_information __P((struct bha_softc *)); 160
Indexes created Thu Oct 23 22:10:10 GMT 2025