1 /* $OpenBSD: adw.h,v 1.9 2002/03/14 01:26:53 millert Exp $ */ 2 /* $NetBSD: adw.h,v 1.9 2000/05/26 15:13:43 dante Exp $ */ 3 4 /* 5 * Generic driver definitions and exported functions for the Advanced 6 * Systems Inc. SCSI controllers 7 * 8 * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc. 9 * All rights reserved. 10 * 11 * Author: Baldassare Dante Profeta <dante@mclink.it> 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by the NetBSD 24 * Foundation, Inc. and its contributors. 25 * 4. Neither the name of The NetBSD Foundation nor the names of its 26 * contributors may be used to endorse or promote products derived 27 * from this software without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 30 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 31 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 32 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 33 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 34 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 35 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 36 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 37 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 39 * POSSIBILITY OF SUCH DAMAGE. 40 */ 41 42 #ifndef _ADVANSYS_WIDE_H_ 43 #define _ADVANSYS_WIDE_H_ 44 45 /******************************************************************************/ 46 47 typedef int (* ADW_ISR_CALLBACK) (ADW_SOFTC *, ADW_SCSI_REQ_Q *); 48 typedef void (* ADW_ASYNC_CALLBACK) (ADW_SOFTC *, u_int8_t); 49 50 51 /* 52 * per request scatter-gather element limit 53 * We could have up to 256 SG lists. 54 */ 55 #define ADW_MAX_SG_LIST 255 56 57 /* 58 * Scatter-Gather Definitions per request. 59 */ 60 61 #define NO_OF_SG_PER_BLOCK 15 62 63 /* Number of SG blocks needed. */ 64 #define ADW_NUM_SG_BLOCK \ 65 ((ADW_MAX_SG_LIST + (NO_OF_SG_PER_BLOCK - 1))/NO_OF_SG_PER_BLOCK) 66 67 68 struct adw_ccb { 69 ADW_SCSI_REQ_Q scsiq; 70 ADW_SG_BLOCK sg_block[ADW_NUM_SG_BLOCK]; 71 72 struct scsi_sense_data scsi_sense; 73 74 TAILQ_ENTRY(adw_ccb) chain; 75 struct adw_ccb *nexthash; 76 u_int32_t hashkey; 77 78 struct scsi_xfer *xs; /* the scsi_xfer for this cmd */ 79 int flags; /* see below */ 80 81 int timeout; 82 83 /* 84 * This DMA map maps the buffer involved in the transfer. 85 */ 86 bus_dmamap_t dmamap_xfer; 87 }; 88 89 typedef struct adw_ccb ADW_CCB; 90 91 /* flags for ADW_CCB */ 92 #define CCB_ALLOC 0x01 93 #define CCB_ABORTING 0x02 94 #define CCB_ABORTED 0x04 95 96 97 #define ADW_MAX_CCB 63 /* Max. number commands per device (63) */ 98 99 struct adw_control { 100 ADW_CCB ccbs[ADW_MAX_CCB]; /* all our control blocks */ 101 ADW_CARRIER *carriers; /* all our carriers */ 102 }; 103 104 /* 105 * Offset of a CCB from the beginning of the control DMA mapping. 106 */ 107 #define ADW_CCB_OFF(c) (offsetof(struct adw_control, ccbs[0]) + \ 108 (((u_long)(c)) - ((u_long)&sc->sc_control->ccbs[0]))) 109 110 /******************************************************************************/ 111 112 int adw_init(ADW_SOFTC *sc); 113 void adw_attach(ADW_SOFTC *sc); 114 int adw_intr(void *arg); 115 ADW_CCB *adw_ccb_phys_kv(ADW_SOFTC *, u_int32_t); 116 117 /******************************************************************************/ 118 119 #endif /* _ADVANSYS_ADW_H_ */ 120