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 *); 136