| 1 | /* $NecBSD: bsfunc.h,v 1.1 1997/07/18 09:19:03 kmatsuda Exp $ */ |
| 2 | /* $NetBSD$ */ |
| 3 | /* $DragonFly: src/sys/dev/disk/i386/bs/Attic/bsfunc.h,v 1.2 2003/08/27 10:35:16 rob Exp $ */ |
| 4 | /* |
| 5 | * [NetBSD for NEC PC98 series] |
| 6 | * Copyright (c) 1994, 1995, 1996 NetBSD/pc98 porting staff. |
| 7 | * All rights reserved. |
| 8 | * |
| 9 | * Redistribution and use in source and binary forms, with or without |
| 10 | * modification, are permitted provided that the following conditions |
| 11 | * are met: |
| 12 | * 1. Redistributions of source code must retain the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer. |
| 14 | * 2. Redistributions in binary form must reproduce the above copyright |
| 15 | * notice, this list of conditions and the following disclaimer in the |
| 16 | * documentation and/or other materials provided with the distribution. |
| 17 | * 3. 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 |
| 22 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 23 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
| 24 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 25 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| 26 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 28 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| 29 | * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 30 | * POSSIBILITY OF SUCH DAMAGE. |
| 31 | */ |
| 32 | /* |
| 33 | * Copyright (c) 1994, 1995, 1996 Naofumi HONDA. All rights reserved. |
| 34 | */ |
| 35 | |
| 36 | /************************************************** |
| 37 | * FUNC |
| 38 | **************************************************/ |
| 39 | /* timeout */ |
| 40 | void bstimeout (void *); |
| 41 | |
| 42 | /* ctrl setup */ |
| 43 | void bs_setup_ctrl (struct targ_info *, u_int, u_int); |
| 44 | struct targ_info *bs_init_target_info (struct bs_softc *, int); |
| 45 | |
| 46 | /* msg op */ |
| 47 | int bs_send_msg (struct targ_info *, u_int, struct msgbase *, int); |
| 48 | struct bsccb *bs_request_sense (struct targ_info *); |
| 49 | |
| 50 | /* sync msg op */ |
| 51 | int bs_start_syncmsg (struct targ_info *, struct bsccb *, int); |
| 52 | int bs_send_syncmsg (struct targ_info *); |
| 53 | int bs_analyze_syncmsg (struct targ_info *, struct bsccb *); |
| 54 | |
| 55 | /* reset device */ |
| 56 | void bs_scsibus_start (struct bs_softc *); |
| 57 | void bs_reset_nexus (struct bs_softc *); |
| 58 | struct bsccb *bs_force_abort (struct targ_info *); |
| 59 | void bs_reset_device (struct targ_info *); |
| 60 | |
| 61 | /* ccb */ |
| 62 | struct bsccb *bs_make_internal_ccb (struct targ_info *, u_int, u_int8_t *, u_int, u_int8_t *, u_int, u_int, int); |
| 63 | struct bsccb *bs_make_msg_ccb (struct targ_info *, u_int, struct bsccb *, struct msgbase *, u_int); |
| 64 | |
| 65 | /* misc funcs */ |
| 66 | void bs_printf (struct targ_info *, char *, char *); |
| 67 | void bs_panic (struct bs_softc *, u_char *); |
| 68 | |
| 69 | /* misc debug */ |
| 70 | u_int bsr (u_int); |
| 71 | u_int bsw (u_int, int); |
| 72 | void bs_debug_print_all (struct bs_softc *); |
| 73 | void bs_debug_print (struct bs_softc *, struct targ_info *); |
| 74 | |
| 75 | /************************************************** |
| 76 | * TARG FLAGS |
| 77 | *************************************************/ |
| 78 | static BS_INLINE int bs_check_sat (struct targ_info *); |
| 79 | static BS_INLINE int bs_check_smit (struct targ_info *); |
| 80 | static BS_INLINE int bs_check_disc (struct targ_info *); |
| 81 | static BS_INLINE int bs_check_link (struct targ_info *, struct bsccb *); |
| 82 | static BS_INLINE u_int8_t bs_identify_msg (struct targ_info *); |
| 83 | static BS_INLINE void bs_targ_flags (struct targ_info *, struct bsccb *); |
| 84 | |
| 85 | static BS_INLINE int |
| 86 | bs_check_disc(ti) |
| 87 | struct targ_info *ti; |
| 88 | { |
| 89 | |
| 90 | return (ti->ti_flags & BSDISC); |
| 91 | } |
| 92 | |
| 93 | static BS_INLINE int |
| 94 | bs_check_sat(ti) |
| 95 | struct targ_info *ti; |
| 96 | { |
| 97 | |
| 98 | return (ti->ti_flags & BSSAT); |
| 99 | } |
| 100 | |
| 101 | static BS_INLINE int |
| 102 | bs_check_smit(ti) |
| 103 | struct targ_info *ti; |
| 104 | { |
| 105 | |
| 106 | return (ti->ti_flags & BSSMIT); |
| 107 | } |
| 108 | |
| 109 | static BS_INLINE int |
| 110 | bs_check_link(ti, cb) |
| 111 | struct targ_info *ti; |
| 112 | struct bsccb *cb; |
| 113 | { |
| 114 | struct bsccb *nextcb; |
| 115 | |
| 116 | return ((ti->ti_flags & BSLINK) && |
| 117 | (nextcb = cb->ccb_chain.tqe_next) && |
| 118 | (nextcb->bsccb_flags & BSLINK)); |
| 119 | } |
| 120 | |
| 121 | static BS_INLINE u_int8_t |
| 122 | bs_identify_msg(ti) |
| 123 | struct targ_info *ti; |
| 124 | { |
| 125 | |
| 126 | return ((bs_check_disc(ti) ? 0xc0 : 0x80) | ti->ti_lun); |
| 127 | } |
| 128 | |
| 129 | static BS_INLINE void |
| 130 | bs_targ_flags(ti, cb) |
| 131 | struct targ_info *ti; |
| 132 | struct bsccb *cb; |
| 133 | { |
| 134 | u_int cmf = (u_int) bshw_cmd[cb->cmd[0]]; |
| 135 | |
| 136 | cb->bsccb_flags |= ((cmf & (BSSAT | BSSMIT | BSLINK)) | BSDISC); |
| 137 | cb->bsccb_flags &= ti->ti_mflags; |
| 138 | |
| 139 | if (cb->datalen < DEV_BSIZE) |
| 140 | cb->bsccb_flags &= ~BSSMIT; |
| 141 | if (cb->bsccb_flags & BSFORCEIOPOLL) |
| 142 | cb->bsccb_flags &= ~(BSLINK | BSSMIT | BSSAT | BSDISC); |
| 143 | } |
| 144 | |
| 145 | /************************************************** |
| 146 | * QUEUE OP |
| 147 | **************************************************/ |
| 148 | static BS_INLINE void bs_hostque_init (struct bs_softc *); |
| 149 | static BS_INLINE void bs_hostque_head (struct bs_softc *, struct targ_info *); |
| 150 | static BS_INLINE void bs_hostque_tail (struct bs_softc *, struct targ_info *); |
| 151 | static BS_INLINE void bs_hostque_delete (struct bs_softc *, struct targ_info *); |
| 152 | |
| 153 | static BS_INLINE void |
| 154 | bs_hostque_init(bsc) |
| 155 | struct bs_softc *bsc; |
| 156 | { |
| 157 | |
| 158 | TAILQ_INIT(&bsc->sc_sttab); |
| 159 | TAILQ_INIT(&bsc->sc_titab); |
| 160 | } |
| 161 | |
| 162 | static BS_INLINE void |
| 163 | bs_hostque_head(bsc, ti) |
| 164 | struct bs_softc *bsc; |
| 165 | struct targ_info *ti; |
| 166 | { |
| 167 | |
| 168 | if (ti->ti_flags & BSQUEUED) { |
| 169 | TAILQ_REMOVE(&bsc->sc_sttab, ti, ti_wchain); |
| 170 | } else { |
| 171 | ti->ti_flags |= BSQUEUED; |
| 172 | } |
| 173 | TAILQ_INSERT_HEAD(&bsc->sc_sttab, ti, ti_wchain); |
| 174 | } |
| 175 | |
| 176 | static BS_INLINE void |
| 177 | bs_hostque_tail(bsc, ti) |
| 178 | struct bs_softc *bsc; |
| 179 | struct targ_info *ti; |
| 180 | { |
| 181 | |
| 182 | if (ti->ti_flags & BSQUEUED) { |
| 183 | TAILQ_REMOVE(&bsc->sc_sttab, ti, ti_wchain); |
| 184 | } else { |
| 185 | ti->ti_flags |= BSQUEUED; |
| 186 | } |
| 187 | TAILQ_INSERT_TAIL(&bsc->sc_sttab, ti, ti_wchain); |
| 188 | } |
| 189 | |
| 190 | static BS_INLINE void |
| 191 | bs_hostque_delete(bsc, ti) |
| 192 | struct bs_softc *bsc; |
| 193 | struct targ_info *ti; |
| 194 | { |
| 195 | |
| 196 | if (ti->ti_flags & BSQUEUED) |
| 197 | { |
| 198 | ti->ti_flags &= ~BSQUEUED; |
| 199 | TAILQ_REMOVE(&bsc->sc_sttab, ti, ti_wchain); |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | /************************************************************* |
| 204 | * TIMEOUT |
| 205 | ************************************************************/ |
| 206 | static BS_INLINE void bs_start_timeout (struct bs_softc *); |
| 207 | static BS_INLINE void bs_terminate_timeout (struct bs_softc *); |
| 208 | |
| 209 | static BS_INLINE void |
| 210 | bs_start_timeout(bsc) |
| 211 | struct bs_softc *bsc; |
| 212 | { |
| 213 | |
| 214 | if ((bsc->sc_flags & BSSTARTTIMEOUT) == 0) |
| 215 | { |
| 216 | bsc->sc_flags |= BSSTARTTIMEOUT; |
| 217 | #ifdef __FreeBSD__ |
| 218 | bsc->timeout_ch = |
| 219 | #endif |
| 220 | timeout(bstimeout, bsc, BS_TIMEOUT_INTERVAL); |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | static BS_INLINE void |
| 225 | bs_terminate_timeout(bsc) |
| 226 | struct bs_softc *bsc; |
| 227 | { |
| 228 | |
| 229 | if (bsc->sc_flags & BSSTARTTIMEOUT) |
| 230 | { |
| 231 | #ifdef __FreeBSD__ |
| 232 | untimeout(bstimeout, bsc, |
| 233 | bsc->timeout_ch); |
| 234 | #else |
| 235 | untimeout(bstimeout, bsc); |
| 236 | #endif |
| 237 | bsc->sc_flags &= ~BSSTARTTIMEOUT; |
| 238 | } |
| 239 | } |