190792Sgshapiro/* $NetBSD: ahavar.h,v 1.14 2008/04/28 20:23:49 martin Exp $ */ 2261363Sgshapiro 390792Sgshapiro/*- 490792Sgshapiro * Copyright (c) 1998 The NetBSD Foundation, Inc. 590792Sgshapiro * All rights reserved. 690792Sgshapiro * 790792Sgshapiro * This code is derived from software contributed to The NetBSD Foundation 890792Sgshapiro * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace 990792Sgshapiro * Simulation Facility, NASA Ames Research Center. 1090792Sgshapiro * 11266692Sgshapiro * Redistribution and use in source and binary forms, with or without 1290792Sgshapiro * modification, are permitted provided that the following conditions 1390792Sgshapiro * are met: 1490792Sgshapiro * 1. Redistributions of source code must retain the above copyright 1590792Sgshapiro * notice, this list of conditions and the following disclaimer. 1690792Sgshapiro * 2. Redistributions in binary form must reproduce the above copyright 1790792Sgshapiro * notice, this list of conditions and the following disclaimer in the 1890792Sgshapiro * documentation and/or other materials provided with the distribution. 1990792Sgshapiro * 2090792Sgshapiro * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 2190792Sgshapiro * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 2290792Sgshapiro * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 2390792Sgshapiro * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 2490792Sgshapiro * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 2590792Sgshapiro * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 2690792Sgshapiro * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 2790792Sgshapiro * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 2890792Sgshapiro * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 2990792Sgshapiro * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 3090792Sgshapiro * POSSIBILITY OF SUCH DAMAGE. 3190792Sgshapiro */ 3290792Sgshapiro 3390792Sgshapiro#ifndef _DEV_IC_AHAVAR_H_ 3490792Sgshapiro#define _DEV_IC_AHAVAR_H_ 3590792Sgshapiro 3690792Sgshapiro#include <sys/queue.h> 3790792Sgshapiro 3890792Sgshapiro/* 3990792Sgshapiro * Mail box defs etc. 4090792Sgshapiro * these could be bigger but we need the aha_softc to fit on a single page.. 4190792Sgshapiro */ 4290792Sgshapiro#define AHA_MBX_SIZE 16 /* mail box size (MAX 255 MBxs) */ 4390792Sgshapiro /* don't need that many really */ 4490792Sgshapiro#define AHA_CCB_MAX 16 /* store up to 16 CCBs at one time */ 4590792Sgshapiro#define CCB_HASH_SIZE 16 /* hash table size for phystokv */ 4690792Sgshapiro#define CCB_HASH_SHIFT 9 4790792Sgshapiro#define CCB_HASH(x) ((((long)(x))>>CCB_HASH_SHIFT) & (CCB_HASH_SIZE - 1)) 4890792Sgshapiro 4990792Sgshapiro#define aha_nextmbx(wmb, mbx, mbio) \ 5090792Sgshapiro if ((wmb) == &(mbx)->mbio[AHA_MBX_SIZE - 1]) \ 5190792Sgshapiro (wmb) = &(mbx)->mbio[0]; \ 5290792Sgshapiro else \ 5390792Sgshapiro (wmb)++; 5490792Sgshapiro 5590792Sgshapirostruct aha_mbx { 5690792Sgshapiro struct aha_mbx_out mbo[AHA_MBX_SIZE]; 5790792Sgshapiro struct aha_mbx_in mbi[AHA_MBX_SIZE]; 5890792Sgshapiro struct aha_mbx_out *cmbo; /* Collection Mail Box out */ 5990792Sgshapiro struct aha_mbx_out *tmbo; /* Target Mail Box out */ 6090792Sgshapiro struct aha_mbx_in *tmbi; /* Target Mail Box in */ 6190792Sgshapiro}; 6290792Sgshapiro 6390792Sgshapirostruct aha_control { 6490792Sgshapiro struct aha_mbx ac_mbx; /* all our mailboxes */ 6590792Sgshapiro struct aha_ccb ac_ccbs[AHA_CCB_MAX]; /* all our control blocks */ 6690792Sgshapiro}; 6790792Sgshapiro 6890792Sgshapirostruct aha_softc { 6990792Sgshapiro device_t sc_dev; 70 71 bus_space_tag_t sc_iot; 72 bus_space_handle_t sc_ioh; 73 bus_dma_tag_t sc_dmat; 74 bus_dmamap_t sc_dmamap_control; /* maps the control structures */ 75 void *sc_ih; 76 77 struct aha_control *sc_control; /* control structures */ 78 79#define wmbx (&sc->sc_control->ac_mbx) 80 81 struct aha_ccb *sc_ccbhash[CCB_HASH_SIZE]; 82 TAILQ_HEAD(, aha_ccb) sc_free_ccb, sc_waiting_ccb; 83 int sc_mbofull; 84 85 struct scsipi_adapter sc_adapter; 86 struct scsipi_channel sc_channel; 87 88 char sc_model[18], 89 sc_firmware[4]; 90}; 91 92/* 93 * Offset of a Mail Box In from the beginning of the control DMA mapping. 94 */ 95#define AHA_MBI_OFF(m) (offsetof(struct aha_control, ac_mbx.mbi[0]) + \ 96 (((u_long)(m)) - ((u_long)&wmbx->mbi[0]))) 97 98/* 99 * Offset of a Mail Box Out from the beginning of the control DMA mapping. 100 */ 101#define AHA_MBO_OFF(m) (offsetof(struct aha_control, ac_mbx.mbo[0]) + \ 102 (((u_long)(m)) - ((u_long)&wmbx->mbo[0]))) 103 104/* 105 * Offset of a CCB from the beginning of the control DMA mapping. 106 */ 107#define AHA_CCB_OFF(c) (offsetof(struct aha_control, ac_ccbs[0]) + \ 108 (((u_long)(c)) - ((u_long)&sc->sc_control->ac_ccbs[0]))) 109 110struct aha_probe_data { 111 int sc_irq, sc_drq; 112 int sc_scsi_dev; /* adapters scsi id */ 113}; 114 115int aha_find(bus_space_tag_t, bus_space_handle_t, 116 struct aha_probe_data *); 117void aha_attach(struct aha_softc *, struct aha_probe_data *); 118int aha_intr(void *); 119 120#endif /* _DEV_IC_AHAVAR_H_ */ 121