/* $NetBSD: uba_bi.c,v 1.15 2009/11/23 02:13:45 rmind Exp $ */ /* * Copyright (c) 1998 Ludd, University of Lule}, Sweden. * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed at Ludd, University of * Lule}, Sweden and its contributors. * 4. 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. */ /* * DWBUA BI-Unibus adapter */ #include __KERNEL_RCSID(0, "$NetBSD: uba_bi.c,v 1.15 2009/11/23 02:13:45 rmind Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "locators.h" #define BUA(uba) ((struct dwbua_regs *)(uba)) static int uba_bi_match(device_t, cfdata_t, void *); static void uba_bi_attach(device_t, device_t, void *); static void bua_init(struct uba_softc *); static void bua_purge(struct uba_softc *, int); /* bua_csr */ #define BUACSR_ERR 0x80000000 /* composite error */ #define BUACSR_BIF 0x10000000 /* BI failure */ #define BUACSR_SSYNTO 0x08000000 /* slave sync timeout */ #define BUACSR_UIE 0x04000000 /* unibus interlock error */ #define BUACSR_IVMR 0x02000000 /* invalid map register */ #define BUACSR_BADBDP 0x01000000 /* bad BDP select */ #define BUACSR_BUAEIE 0x00100000 /* bua error interrupt enable (?) */ #define BUACSR_UPI 0x00020000 /* unibus power init */ #define BUACSR_UREGDUMP 0x00010000 /* microdiag register dump */ #define BUACSR_IERRNO 0x000000ff /* mask for internal errror number */ /* bua_offset */ #define BUAOFFSET_MASK 0x00003e00 /* hence max offset = 15872 */ /* bua_dpr */ #define BUADPR_DPSEL 0x00e00000 /* data path select (?) */ #define BUADPR_PURGE 0x00000001 /* purge bdp */ /* bua_map -- in particular, those bits that are not in DW780s & DW750s */ #define BUAMR_IOADR 0x40000000 /* I/O address space */ #define BUAMR_LAE 0x04000000 /* longword access enable */ static int allocvec; CFATTACH_DECL_NEW(uba_bi, sizeof(struct uba_softc), uba_bi_match, uba_bi_attach, NULL, NULL); struct dwbua_regs { struct biiregs bn_biic; /* interface */ int pad1[396]; int bn_csr; int bn_vor; /* Vector offset from SCB */ int bn_fubar; /* Failed Unibus address register */ int bn_bifar; /* BI failed address register */ int bn_mdiag[5]; /* microdiag regs for BDP */ int pad2[3]; int bn_dpcsr[6]; /* Data path control and status register */ int pad3[38]; struct pte bn_map[UBAPAGES]; /* Unibus map registers */ int pad4[UBAIOPAGES]; }; /* * Poke at a supposed DWBUA to see if it is there. */ static int uba_bi_match(device_t parent, cfdata_t cf, void *aux) { struct bi_attach_args *ba = aux; if ((ba->ba_node->biic.bi_dtype != BIDT_DWBUA) && (ba->ba_node->biic.bi_dtype != BIDT_KLESI)) return 0; if (cf->cf_loc[BICF_NODE] != BICF_NODE_DEFAULT && cf->cf_loc[BICF_NODE] != ba->ba_nodenr) return 0; return 1; } void uba_bi_attach(device_t parent, device_t self, void *aux) { struct uba_softc *sc = device_private(self); struct bi_attach_args *ba = aux; volatile int timo; if (ba->ba_node->biic.bi_dtype == BIDT_DWBUA) printf(": DWBUA\n"); else printf(": KLESI-B\n"); /* * Fill in bus specific data. */ sc->uh_dev = self; sc->uh_uba = (void *)ba->ba_node; sc->uh_nbdp = NBDPBUA; /* sc->uh_nr is 0; uninteresting here */ /* sc->uh_afterscan; not used */ /* sc->uh_errchk; not used */ /* sc->uh_beforescan */ sc->uh_ubapurge = bua_purge; sc->uh_ubainit = bua_init; /* sc->uh_type not used */ sc->uh_memsize = UBAPAGES; sc->uh_mr = BUA(sc->uh_uba)->bn_map; #ifdef notdef /* Can we get separate interrupts? */ scb->scb_nexvec[1][ba->ba_nodenr] = &sc->sc_ivec; #endif BUA(sc->uh_uba)->bn_biic.bi_csr |= BICSR_ARB_NONE; BUA(sc->uh_uba)->bn_biic.bi_csr |= BICSR_STS | BICSR_INIT; DELAY(1000); timo = 1000; while (BUA(sc->uh_uba)->bn_biic.bi_csr & BICSR_BROKE) if (timo == 0) { aprint_error_dev(self, "BROKE bit set\n"); return; } BUA(sc->uh_uba)->bn_biic.bi_intrdes = ba->ba_intcpu; BUA(sc->uh_uba)->bn_biic.bi_csr = (BUA(sc->uh_uba)->bn_biic.bi_csr&~BICSR_ARB_MASK) | BICSR_ARB_HIGH; BUA(sc->uh_uba)->bn_vor = VAX_NBPG + (VAX_NBPG * allocvec++); uba_attach(sc, BUA(sc->uh_uba)->bn_biic.bi_sadr + UBAPAGES * VAX_NBPG); } void bua_init(struct uba_softc *sc) { BUA(sc->uh_uba)->bn_csr |= BUACSR_UPI; DELAY(500000); }; void bua_purge(struct uba_softc *sc, int bdp) { BUA(sc->uh_uba)->bn_dpcsr[bdp] |= BUADPR_PURGE; }