Annotation of sys/arch/vax/uba/uba_cmi.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: uba_cmi.c,v 1.3 2003/06/02 23:27:58 millert Exp $ */
! 2: /* $NetBSD: uba_cmi.c,v 1.2 1999/08/14 11:31:48 ragge Exp $ */
! 3: /*
! 4: * Copyright (c) 1996 Jonathan Stone.
! 5: * Copyright (c) 1994, 1996 Ludd, University of Lule}, Sweden.
! 6: * Copyright (c) 1982, 1986 The Regents of the University of California.
! 7: * All rights reserved.
! 8: *
! 9: * Redistribution and use in source and binary forms, with or without
! 10: * modification, are permitted provided that the following conditions
! 11: * are met:
! 12: * 1. Redistributions of source code must retain the above copyright
! 13: * notice, this list of conditions and the following disclaimer.
! 14: * 2. Redistributions in binary form must reproduce the above copyright
! 15: * notice, this list of conditions and the following disclaimer in the
! 16: * documentation and/or other materials provided with the distribution.
! 17: * 3. Neither the name of the University nor the names of its contributors
! 18: * may be used to endorse or promote products derived from this software
! 19: * without specific prior written permission.
! 20: *
! 21: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 24: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 31: * SUCH DAMAGE.
! 32: *
! 33: * @(#)uba.c 7.10 (Berkeley) 12/16/90
! 34: * @(#)autoconf.c 7.20 (Berkeley) 5/9/91
! 35: */
! 36:
! 37: #include <sys/param.h>
! 38: #include <sys/device.h>
! 39: #include <sys/systm.h>
! 40:
! 41: #define _VAX_BUS_DMA_PRIVATE
! 42: #include <machine/bus.h>
! 43: #include <machine/mtpr.h>
! 44: #include <machine/nexus.h>
! 45: #include <machine/cpu.h>
! 46: #include <machine/sgmap.h>
! 47:
! 48: #include <arch/vax/qbus/ubavar.h>
! 49:
! 50: #include <arch/vax/uba/uba_common.h>
! 51:
! 52: /* Some CMI-specific defines */
! 53: #define UBASIZE ((UBAPAGES + UBAIOPAGES) * VAX_NBPG)
! 54: #define UMEM750(i) (0xfc0000 - (i) * UBASIZE)
! 55: #define UIOPAGE(x) (UMEM750(x) + (UBAPAGES * VAX_NBPG))
! 56:
! 57: /*
! 58: * The DW780 and DW750 are quite similar to their function from
! 59: * a programmers point of view. Differencies are number of BDP's
! 60: * and bus status/command registers, the latter are (partly) IPR's
! 61: * on 750.
! 62: */
! 63: static int dw750_match(struct device *, struct cfdata *, void *);
! 64: static void dw750_attach(struct device *, struct device *, void *);
! 65: static void dw750_init(struct uba_softc*);
! 66: #ifdef notyet
! 67: static void dw750_purge(struct uba_softc *, int);
! 68: #endif
! 69:
! 70: struct cfattach uba_cmi_ca = {
! 71: sizeof(struct uba_vsoftc), dw750_match, dw750_attach
! 72: };
! 73:
! 74: extern struct vax_bus_space vax_mem_bus_space;
! 75:
! 76: int
! 77: dw750_match(parent, cf, aux)
! 78: struct device *parent;
! 79: struct cfdata *cf;
! 80: void *aux;
! 81: {
! 82: struct sbi_attach_args *sa = (struct sbi_attach_args *)aux;
! 83:
! 84: if ((cf->cf_loc[0] != sa->nexnum) && (cf->cf_loc[0] > -1 ))
! 85: return 0;
! 86: /*
! 87: * The uba type is actually only telling where the uba
! 88: * space is in nexus space.
! 89: */
! 90: if ((sa->type & ~3) != NEX_UBA0)
! 91: return 0;
! 92:
! 93: return 1;
! 94: }
! 95:
! 96: void
! 97: dw750_attach(parent, self, aux)
! 98: struct device *parent, *self;
! 99: void *aux;
! 100: {
! 101: struct uba_vsoftc *sc = (void *)self;
! 102: struct sbi_attach_args *sa = aux;
! 103: struct uba_regs *uh_uba = (void *)sa->nexaddr;
! 104: int ubaddr = sa->nexinfo & 1;
! 105:
! 106: printf(": DW750\n");
! 107: /*
! 108: * Fill in bus specific data.
! 109: */
! 110: sc->uv_sc.uh_ubainit = dw750_init;
! 111: #ifdef notyet
! 112: sc->uv_sc.uh_ubapurge = dw750_purge;
! 113: #endif
! 114: sc->uv_sc.uh_iot = &vax_mem_bus_space;
! 115: sc->uv_sc.uh_dmat = &sc->uv_dmat;
! 116:
! 117: /*
! 118: * Fill in variables used by the sgmap system.
! 119: */
! 120: sc->uv_size = UBASIZE; /* Size in bytes of Qbus space */
! 121: sc->uv_addr = (paddr_t)uh_uba->uba_map; /* Map regs physical address */
! 122:
! 123: uba_dma_init(sc);
! 124: uba_attach(&sc->uv_sc, UIOPAGE(ubaddr));
! 125: }
! 126:
! 127: void
! 128: dw750_init(sc)
! 129: struct uba_softc *sc;
! 130: {
! 131: mtpr(0, PR_IUR);
! 132: DELAY(500000);
! 133: }
! 134:
! 135: #ifdef notyet
! 136: void
! 137: dw750_purge(sc, bdp)
! 138: struct uba_softc *sc;
! 139: int bdp;
! 140: {
! 141: sc->uh_uba->uba_dpr[bdp] |= UBADPR_PURGE | UBADPR_NXM | UBADPR_UCE;
! 142: }
! 143: #endif
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