Annotation of sys/dev/ic/oosiopvar.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: oosiopvar.h,v 1.2 2004/03/14 12:23:49 miod Exp $ */
! 2: /* $NetBSD: oosiopvar.h,v 1.2 2003/05/03 18:11:23 wiz Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 2001 Shuichiro URATA. All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: * 3. The name of the author may not be used to endorse or promote products
! 16: * derived from this software without specific prior written permission.
! 17: *
! 18: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 19: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 20: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 21: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 22: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 23: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 24: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 25: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 26: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 27: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 28: */
! 29:
! 30: #define OOSIOP_NTGT 8 /* Max targets */
! 31: #define OOSIOP_NCB 32 /* Initial command buffers */
! 32: #define OOSIOP_NSG (MIN(btoc(MAXPHYS) + 1, 32)) /* Max S/G operation */
! 33: #define OOSIOP_MAX_XFER ctob(OOSIOP_NSG - 1)
! 34:
! 35: struct oosiop_xfer {
! 36: /* script for scatter/gather DMA (move*nsg+jump) */
! 37: u_int32_t datain_scr[(OOSIOP_NSG + 1) * 2];
! 38: u_int32_t dataout_scr[(OOSIOP_NSG + 1) * 2];
! 39:
! 40: u_int8_t msgin[8];
! 41: u_int8_t msgout[8];
! 42: u_int8_t status;
! 43: u_int8_t pad[7];
! 44: } __packed;
! 45:
! 46: #define SCSI_OOSIOP_NOSTATUS 0xff /* device didn't report status */
! 47:
! 48: #define OOSIOP_XFEROFF(x) offsetof(struct oosiop_xfer, x)
! 49: #define OOSIOP_DINSCROFF OOSIOP_XFEROFF(datain_scr[0])
! 50: #define OOSIOP_DOUTSCROFF OOSIOP_XFEROFF(dataout_scr[0])
! 51: #define OOSIOP_MSGINOFF OOSIOP_XFEROFF(msgin[0])
! 52: #define OOSIOP_MSGOUTOFF OOSIOP_XFEROFF(msgout[0])
! 53:
! 54: #define OOSIOP_XFERSCR_SYNC(sc, cb, ops) \
! 55: bus_dmamap_sync((sc)->sc_dmat, (cb)->xferdma, OOSIOP_DINSCROFF, \
! 56: OOSIOP_MSGINOFF - OOSIOP_DINSCROFF, (ops))
! 57: #define OOSIOP_DINSCR_SYNC(sc, cb, ops) \
! 58: bus_dmamap_sync((sc)->sc_dmat, (cb)->xferdma, OOSIOP_DINSCROFF, \
! 59: OOSIOP_DOUTSCROFF - OOSIOP_DINSCROFF, (ops))
! 60: #define OOSIOP_DOUTSCR_SYNC(sc, cb, ops) \
! 61: bus_dmamap_sync((sc)->sc_dmat, (cb)->xferdma, OOSIOP_DOUTSCROFF,\
! 62: OOSIOP_MSGINOFF - OOSIOP_DOUTSCROFF, (ops))
! 63: #define OOSIOP_XFERMSG_SYNC(sc, cb, ops) \
! 64: bus_dmamap_sync((sc)->sc_dmat, (cb)->xferdma, OOSIOP_MSGINOFF, \
! 65: sizeof(struct oosiop_xfer) - OOSIOP_MSGINOFF, (ops))
! 66:
! 67: #define OOSIOP_SCRIPT_SYNC(sc, ops) \
! 68: bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_scrdma, \
! 69: 0, sizeof(oosiop_script), (ops))
! 70:
! 71: struct oosiop_cb {
! 72: TAILQ_ENTRY(oosiop_cb) chain;
! 73:
! 74: struct scsi_xfer *xs; /* SCSI xfer ctrl block from above */
! 75: int flags;
! 76: int id; /* target scsi id */
! 77: int lun; /* target lun */
! 78:
! 79: bus_dmamap_t cmddma; /* DMA map for command out */
! 80: bus_dmamap_t datadma; /* DMA map for data I/O */
! 81: bus_dmamap_t xferdma; /* DMA map for xfer block */
! 82:
! 83: int curdp; /* current data pointer */
! 84: int savedp; /* saved data pointer */
! 85: int msgoutlen;
! 86:
! 87: int xsflags; /* copy of xs->flags */
! 88: int datalen; /* copy of xs->datalen */
! 89: int cmdlen; /* copy of xs->cmdlen */
! 90:
! 91: struct oosiop_xfer *xfer; /* DMA xfer block */
! 92: };
! 93:
! 94: /* oosiop_cb flags */
! 95: #define CBF_SELTOUT 0x01 /* Selection timeout */
! 96: #define CBF_TIMEOUT 0x02 /* Command timeout */
! 97: #define CBF_AUTOSENSE 0x04 /* Request sense due to SCSI_CHECK */
! 98:
! 99: struct oosiop_target {
! 100: struct oosiop_cb *nexus;
! 101: int flags;
! 102: u_int8_t scf; /* synchronous clock divisor */
! 103: u_int8_t sxfer; /* synchronous period and offset */
! 104: };
! 105:
! 106: /* target flags */
! 107: #define TGTF_SYNCNEG 0x01 /* Trigger synchronous negotiation */
! 108: #define TGTF_WAITSDTR 0x02 /* Waiting SDTR from target */
! 109:
! 110: struct oosiop_softc {
! 111: struct device sc_dev;
! 112:
! 113: bus_space_tag_t sc_bst; /* bus space tag */
! 114: bus_space_handle_t sc_bsh; /* bus space handle */
! 115:
! 116: bus_dma_tag_t sc_dmat; /* bus DMA tag */
! 117: bus_dmamap_t sc_scrdma; /* script DMA map */
! 118:
! 119: bus_addr_t sc_scrbase; /* script DMA base address */
! 120: u_int32_t *sc_scr; /* ptr to script memory */
! 121:
! 122: int sc_chip; /* 700 or 700-66 */
! 123: #define OOSIOP_700 0
! 124: #define OOSIOP_700_66 1
! 125:
! 126: int sc_id; /* SCSI ID of this interface */
! 127: int sc_freq; /* SCLK frequency */
! 128: int sc_ccf; /* asynchronous divisor (*10) */
! 129: u_int8_t sc_dcntl;
! 130: u_int8_t sc_minperiod;
! 131:
! 132: struct oosiop_target sc_tgt[OOSIOP_NTGT];
! 133:
! 134: struct scsi_link sc_link;
! 135:
! 136: /* Lists of command blocks */
! 137: TAILQ_HEAD(oosiop_cb_queue, oosiop_cb) sc_free_cb,
! 138: sc_cbq;
! 139:
! 140: struct oosiop_cb *sc_curcb; /* current command */
! 141: struct oosiop_cb *sc_lastcb; /* last activated command */
! 142:
! 143: bus_addr_t sc_reselbuf; /* msgin buffer for reselection */
! 144: int sc_resid; /* reselected target id */
! 145:
! 146: int sc_active;
! 147: int sc_nextdsp;
! 148: };
! 149:
! 150: #define oosiop_read_1(sc, addr) \
! 151: bus_space_read_1((sc)->sc_bst, (sc)->sc_bsh, (addr))
! 152: #define oosiop_write_1(sc, addr, data) \
! 153: bus_space_write_1((sc)->sc_bst, (sc)->sc_bsh, (addr), (data))
! 154: /* XXX byte swapping should be handled by MD bus_space(9)? */
! 155: #define oosiop_read_4(sc, addr) \
! 156: letoh32(bus_space_read_4((sc)->sc_bst, (sc)->sc_bsh, (addr)))
! 157: #define oosiop_write_4(sc, addr, data) \
! 158: bus_space_write_4((sc)->sc_bst, (sc)->sc_bsh, (addr), htole32(data))
! 159:
! 160: void oosiop_attach(struct oosiop_softc *);
! 161: int oosiop_intr(struct oosiop_softc *);
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