/* $OpenBSD: oosiopvar.h,v 1.3 2007/09/22 09:57:40 martin Exp $ */ /* $NetBSD: oosiopvar.h,v 1.2 2003/05/03 18:11:23 wiz Exp $ */ /* * Copyright (c) 2001 Shuichiro URATA. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <uvm/uvm_extern.h> #define OOSIOP_NTGT 8 /* Max targets */ #define OOSIOP_NCB 32 /* Initial command buffers */ #define OOSIOP_NSG (MIN(atop(MAXPHYS) + 1, 32)) /* Max S/G operation */ #define OOSIOP_MAX_XFER ptoa(OOSIOP_NSG - 1) struct oosiop_xfer { /* script for scatter/gather DMA (move*nsg+jump) */ u_int32_t datain_scr[(OOSIOP_NSG + 1) * 2]; u_int32_t dataout_scr[(OOSIOP_NSG + 1) * 2]; u_int8_t msgin[8]; u_int8_t msgout[8]; u_int8_t status; u_int8_t pad[7]; } __packed; #define SCSI_OOSIOP_NOSTATUS 0xff /* device didn't report status */ #define OOSIOP_XFEROFF(x) offsetof(struct oosiop_xfer, x) #define OOSIOP_DINSCROFF OOSIOP_XFEROFF(datain_scr[0]) #define OOSIOP_DOUTSCROFF OOSIOP_XFEROFF(dataout_scr[0]) #define OOSIOP_MSGINOFF OOSIOP_XFEROFF(msgin[0]) #define OOSIOP_MSGOUTOFF OOSIOP_XFEROFF(msgout[0]) #define OOSIOP_XFERSCR_SYNC(sc, cb, ops) \ bus_dmamap_sync((sc)->sc_dmat, (cb)->xferdma, OOSIOP_DINSCROFF, \ OOSIOP_MSGINOFF - OOSIOP_DINSCROFF, (ops)) #define OOSIOP_DINSCR_SYNC(sc, cb, ops) \ bus_dmamap_sync((sc)->sc_dmat, (cb)->xferdma, OOSIOP_DINSCROFF, \ OOSIOP_DOUTSCROFF - OOSIOP_DINSCROFF, (ops)) #define OOSIOP_DOUTSCR_SYNC(sc, cb, ops) \ bus_dmamap_sync((sc)->sc_dmat, (cb)->xferdma, OOSIOP_DOUTSCROFF,\ OOSIOP_MSGINOFF - OOSIOP_DOUTSCROFF, (ops)) #define OOSIOP_XFERMSG_SYNC(sc, cb, ops) \ bus_dmamap_sync((sc)->sc_dmat, (cb)->xferdma, OOSIOP_MSGINOFF, \ sizeof(struct oosiop_xfer) - OOSIOP_MSGINOFF, (ops)) #define OOSIOP_SCRIPT_SYNC(sc, ops) \ bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_scrdma, \ 0, sizeof(oosiop_script), (ops)) struct oosiop_cb { TAILQ_ENTRY(oosiop_cb) chain; struct scsi_xfer *xs; /* SCSI xfer ctrl block from above */ int flags; int id; /* target scsi id */ int lun; /* target lun */ bus_dmamap_t cmddma; /* DMA map for command out */ bus_dmamap_t datadma; /* DMA map for data I/O */ bus_dmamap_t xferdma; /* DMA map for xfer block */ int curdp; /* current data pointer */ int savedp; /* saved data pointer */ int msgoutlen; int xsflags; /* copy of xs->flags */ int datalen; /* copy of xs->datalen */ int cmdlen; /* copy of xs->cmdlen */ struct oosiop_xfer *xfer; /* DMA xfer block */ }; /* oosiop_cb flags */ #define CBF_SELTOUT 0x01 /* Selection timeout */ #define CBF_TIMEOUT 0x02 /* Command timeout */ #define CBF_AUTOSENSE 0x04 /* Request sense due to SCSI_CHECK */ struct oosiop_target { struct oosiop_cb *nexus; int flags; u_int8_t scf; /* synchronous clock divisor */ u_int8_t sxfer; /* synchronous period and offset */ }; /* target flags */ #define TGTF_SYNCNEG 0x01 /* Trigger synchronous negotiation */ #define TGTF_WAITSDTR 0x02 /* Waiting SDTR from target */ struct oosiop_softc { struct device sc_dev; bus_space_tag_t sc_bst; /* bus space tag */ bus_space_handle_t sc_bsh; /* bus space handle */ bus_dma_tag_t sc_dmat; /* bus DMA tag */ bus_dmamap_t sc_scrdma; /* script DMA map */ bus_addr_t sc_scrbase; /* script DMA base address */ u_int32_t *sc_scr; /* ptr to script memory */ int sc_chip; /* 700 or 700-66 */ #define OOSIOP_700 0 #define OOSIOP_700_66 1 int sc_id; /* SCSI ID of this interface */ int sc_freq; /* SCLK frequency */ int sc_ccf; /* asynchronous divisor (*10) */ u_int8_t sc_dcntl; u_int8_t sc_minperiod; struct oosiop_target sc_tgt[OOSIOP_NTGT]; struct scsi_link sc_link; /* Lists of command blocks */ TAILQ_HEAD(oosiop_cb_queue, oosiop_cb) sc_free_cb, sc_cbq; struct oosiop_cb *sc_curcb; /* current command */ struct oosiop_cb *sc_lastcb; /* last activated command */ bus_addr_t sc_reselbuf; /* msgin buffer for reselection */ int sc_resid; /* reselected target id */ int sc_active; int sc_nextdsp; }; #define oosiop_read_1(sc, addr) \ bus_space_read_1((sc)->sc_bst, (sc)->sc_bsh, (addr)) #define oosiop_write_1(sc, addr, data) \ bus_space_write_1((sc)->sc_bst, (sc)->sc_bsh, (addr), (data)) /* XXX byte swapping should be handled by MD bus_space(9)? */ #define oosiop_read_4(sc, addr) \ letoh32(bus_space_read_4((sc)->sc_bst, (sc)->sc_bsh, (addr))) #define oosiop_write_4(sc, addr, data) \ bus_space_write_4((sc)->sc_bst, (sc)->sc_bsh, (addr), htole32(data)) void oosiop_attach(struct oosiop_softc *); int oosiop_intr(struct oosiop_softc *);