1 /* $NetBSD: adw.h,v 1.9 2000/05/26 15:13:43 dante Exp $ */ 2 3 /* 4 * Generic driver definitions and exported functions for the Advanced 5 * Systems Inc. SCSI controllers 6 * 7 * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc. 8 * All rights reserved. 9 * 10 * Author: Baldassare Dante Profeta <dante@mclink.it> 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 #ifndef _ADVANSYS_WIDE_H_ 42 #define _ADVANSYS_WIDE_H_ 43 44 /******************************************************************************/ 45 46 typedef int (* ADW_ISR_CALLBACK) (ADW_SOFTC *, ADW_SCSI_REQ_Q *); 47 typedef void (* ADW_ASYNC_CALLBACK) (ADW_SOFTC *, u_int8_t); 48 49 50 /* 51 * per request scatter-gather element limit 52 * We could have up to 256 SG lists. 53 */ 54 #define ADW_MAX_SG_LIST 255 55 56 /* 57 * Scatter-Gather Definitions per request. 58 */ 59 60 #define NO_OF_SG_PER_BLOCK 15 61 62 /* Number of SG blocks needed. */ 63 #define ADW_NUM_SG_BLOCK \ 64 ((ADW_MAX_SG_LIST + (NO_OF_SG_PER_BLOCK - 1))/NO_OF_SG_PER_BLOCK) 65 66 67 struct adw_ccb { 68 ADW_SCSI_REQ_Q scsiq; 69 ADW_SG_BLOCK sg_block[ADW_NUM_SG_BLOCK]; 70 71 struct scsipi_sense_data scsi_sense; 72 73 TAILQ_ENTRY(adw_ccb) chain; 74 struct adw_ccb *nexthash; 75 u_int32_t hashkey; 76 77 struct scsipi_xfer *xs; /* the scsipi_xfer for this cmd */ 78 int flags; /* see below */ 79 80 int timeout; 81 /* 82 * This DMA map maps the buffer involved in the transfer. 83 */ 84 bus_dmamap_t dmamap_xfer; 85 }; 86 87 typedef struct adw_ccb ADW_CCB; 88 89 /* flags for ADW_CCB */ 90 #define CCB_ALLOC 0x01 91 #define CCB_ABORTING 0x02 92 #define CCB_ABORTED 0x04 93 94 95 #define ADW_MAX_CCB 63 /* Max. number commands per device (63) */ 96 97 struct adw_control { 98 ADW_CCB ccbs[ADW_MAX_CCB]; /* all our control blocks */ 99 ADW_CARRIER *carriers; /* all our carriers */ 100 }; 101 102 /* 103 * Offset of a CCB from the beginning of the control DMA mapping. 104 */ 105 #define ADW_CCB_OFF(c) (offsetof(struct adw_control, ccbs[0]) + \ 106 (((u_long)(c)) - ((u_long)&sc->sc_control->ccbs[0]))) 107 108 /******************************************************************************/ 109 110 int adw_init __P((ADW_SOFTC *sc)); 111 void adw_attach __P((ADW_SOFTC *sc)); 112 int adw_intr __P((void *arg)); 113 ADW_CCB *adw_ccb_phys_kv __P((ADW_SOFTC *, u_int32_t)); 114 115 /******************************************************************************/ 116 117 #endif /* _ADVANSYS_ADW_H_ */ 118