| 1 | /* $ZEL: sis1100_init_remote.c,v 1.7 2004/05/27 23:10:21 wuestner Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Copyright (c) 2001-2004
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| 5 | * Matthias Drochner, Peter Wuestner. All rights reserved.
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| 6 | *
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| 7 | * Redistribution and use in source and binary forms, with or without
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| 8 | * modification, are permitted provided that the following conditions
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| 9 | * are met:
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| 10 | * 1. Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions, and the following disclaimer.
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| 12 | * 2. Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | *
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| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
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| 17 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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| 20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 22 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 23 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 24 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 26 | * SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | #include "sis1100_sc.h"
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| 30 |
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| 31 | static char* rnames[]= {
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| 32 | "PCI",
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| 33 | "VME",
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| 34 | "CAMAC",
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| 35 | "f1",
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| 36 | "VERTEX",
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| 37 | };
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| 38 |
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| 39 | void
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| 40 | sis1100_init_remote(struct sis1100_softc* sc)
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| 41 | {
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| 42 | u_int32_t ident, error, balance, typ, hv, fk, fv;
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| 43 | int res;
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| 44 |
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| 45 | SEM_LOCK(sc->sem_hw);
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| 46 |
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| 47 | /*sis1100writereg(sc, cr, cr_rem_reset);*/ /* reset remote */
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| 48 | if (sis1100_flush_fifo(sc, "init_remote" , 0)) return; /* clear local fifo */
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| 49 | sis1100writereg(sc, p_balance, 0);
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| 50 | sis1100readreg(sc, prot_error);
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| 51 |
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| 52 | ident=plxreadlocal0(sc, 0x800);
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| 53 | error=sis1100readreg(sc, prot_error);
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| 54 | balance=sis1100readreg(sc, p_balance);
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| 55 | SEM_UNLOCK(sc->sem_hw);
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| 56 |
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| 57 | if (error || balance) {
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| 58 | pERROR(sc, "error reading remote ident");
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| 59 | pERROR(sc, "error=0x%x balance=%d", error, balance);
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| 60 | sis1100_flush_fifo(sc, "after reading ident" , 0); /* clear local fifo */
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| 61 | /*sis1100_dump_glink_status(sc, "init remote");*/
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| 62 | return;
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| 63 | }
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| 64 |
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| 65 | typ=ident&0xff;
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| 66 | hv=(ident>>8)&0xff;
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| 67 | fk=(ident>>16)&0xff;
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| 68 | fv=(ident>>24)&0xff;
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| 69 | pINFO(sc, "remote ident: 0x%08x", ident);
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| 70 | if ((typ>0) && (typ<=sizeof(rnames)/sizeof(char*)))
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| 71 | pINFO(sc, "remote is %s", rnames[typ-1]);
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| 72 | else
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| 73 | pERROR(sc, "unknown remote type %d", ident&0xff);
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| 74 | pINFO(sc, "remote HW_ver %d FW_code %d FW_ver %d", hv, fk, fv);
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| 75 | sc->remote_ident=ident;
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| 76 |
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| 77 | /* swapping is undefind here; it even would depend on arbitrary user settings */
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| 78 | switch (typ) {
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| 79 | case sis1100_hw_pci: /* PCI */
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| 80 | res=sis1100rem_init(sc);
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| 81 | sc->remote_endian=1; /* big endian; the remote side has to swap */
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| 82 | break;
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| 83 | case sis1100_hw_vme: /* VME */
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| 84 | res=sis3100rem_init(sc);
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| 85 | sc->remote_endian=1; /* big endian */
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| 86 | break;
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| 87 | case sis1100_hw_camac: /* CAMAC */
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| 88 | res=sis5100rem_init(sc);
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| 89 | sc->remote_endian=1; /* CAMAC is not yet known */
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| 90 | break;
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| 91 | case sis1100_hw_f1: /* (ACAM TDC-F1) */
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| 92 | res=f1_rem_init(sc);
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| 93 | sc->remote_endian=0; /* Willi always uses little endian */
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| 94 | break;
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| 95 | case sis1100_hw_vertex: /* VERTEX (COSY-ANKE) */
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| 96 | res=vertex_rem_init(sc);
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| 97 | sc->remote_endian=0; /* Willi always uses little endian */
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| 98 | break;
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| 99 | default:
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| 100 | pINFO(sc, "remote device type not (yet) supported.");
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| 101 | sc->remote_endian=1; /* just a default */
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| 102 | res=-1;
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| 103 | break;
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| 104 | }
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| 105 | if (res) return;
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| 106 | sis1100_update_swapping(sc, "init_remote");
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| 107 |
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| 108 | sc->old_remote_hw=sc->remote_hw;
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| 109 | sc->remote_hw=typ;
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| 110 | }
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