text: /*	$OpenBSD: if_le_vsbus.c,v 1.12 2010/09/20 06:33:48 matthew Exp $	*/
  /*	$NetBSD: if_le_vsbus.c,v 1.10 2000/06/29 07:14:18 mrg Exp $	*/
  
  /*-
   * Copyright (c) 1998 The NetBSD Foundation, Inc.
   * All rights reserved.
   *
   * This code is derived from software contributed to The NetBSD Foundation
   * by Charles M. Hannum.
   *
   * 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.
   *
   * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   * ``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 FOUNDATION OR CONTRIBUTORS
   * 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.
   */
  
  /*-
   * Copyright (c) 1992, 1993
   *	The Regents of the University of California.  All rights reserved.
   *
   * This code is derived from software contributed to Berkeley by
   * Ralph Campbell and Rick Macklem.
   *
   * 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. Neither the name of the University nor the names of its contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
   *
   *	@(#)if_le.c	8.2 (Berkeley) 11/16/93
   */
  
  #include "bpfilter.h"
  
  #include <sys/param.h>
  #include <sys/syslog.h>
  #include <sys/socket.h>
  #include <sys/device.h>
  #include <sys/reboot.h>
  
  #include <uvm/uvm_extern.h>
  
  #include <net/if.h>
  #include <net/if_media.h>
  
  #ifdef INET
  #include <netinet/in.h>
  #endif
  #include <netinet/if_ether.h>
  
  #include <machine/cpu.h>
  #include <machine/sid.h>
  #include <machine/scb.h>
  #include <machine/bus.h>
  #include <machine/vsbus.h>
  
  #include <dev/ic/am7990reg.h>
  #include <dev/ic/am7990var.h>
  
  struct le_softc {
  	struct	am7990_softc sc_am7990; /* Must be first */
  	struct	evcount sc_intrcnt;
  	bus_dmamap_t sc_dm;
  	volatile u_short *sc_rap;
  	volatile u_short *sc_rdp;
  };
  
  static	int	le_vsbus_match(struct device *, struct cfdata *, void *);
  static	void	le_vsbus_attach(struct device *, struct device *, void *);
  static	void	lewrcsr(struct am7990_softc *, u_int16_t, u_int16_t);
  static	u_int16_t lerdcsr(struct am7990_softc *, u_int16_t);
  
  struct cfattach le_vsbus_ca = {
  	sizeof(struct le_softc), (cfmatch_t)le_vsbus_match, le_vsbus_attach
  };
  
  static void
  lewrcsr(ls, port, val)
  	struct am7990_softc *ls;
  	u_int16_t port, val;
  {
  	struct le_softc *sc = (void *)ls;
  
  	*sc->sc_rap = port;
  	*sc->sc_rdp = val;
  }
  
  static u_int16_t
  lerdcsr(ls, port)
  	struct am7990_softc *ls;
  	u_int16_t port;
  {
  	struct le_softc *sc = (void *)ls;
  
  	*sc->sc_rap = port;
  	return *sc->sc_rdp;
  }
  
  static int
  le_vsbus_match(parent, cf, aux)
  	struct device *parent;
  	struct cfdata *cf;
  	void *aux;
  {
  	struct vsbus_attach_args *va = aux;
  	volatile short *rdp, *rap;
  	struct leinit initblock;
  	bus_dmamap_t map;
  	int i;
  	int rv = 0;
  	int error;
  
  	if (vax_boardtype == VAX_BTYP_49 || vax_boardtype == VAX_BTYP_1303)
  		return 0;
  
  	error = bus_dmamap_create(va->va_dmat, sizeof(initblock), 1,
  	    sizeof(initblock), 0, BUS_DMA_NOWAIT, &map);
  	if (error) {
  		return 0;
  	}
  
  	error = bus_dmamap_load(va->va_dmat, map, &initblock, 
  	    sizeof(initblock), NULL, BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
  	if (error) {
  		bus_dmamap_destroy(va->va_dmat, map);
  		return 0;
  	}
  
  	memset(&initblock, 0, sizeof(initblock));
  
  	rdp = (short *)va->va_addr;
  	rap = rdp + 2;
  
  	/* Make sure the chip is stopped. */
  	*rap = LE_CSR0;
  	*rdp = LE_C0_STOP;
  	DELAY(100);
  	*rap = LE_CSR1;
  	*rdp = map->dm_segs->ds_addr & 0xffff;
  	*rap = LE_CSR2;
  	*rdp = (map->dm_segs->ds_addr >> 16) & 0xffff;
  	*rap = LE_CSR0;
  	*rdp = LE_C0_INIT|LE_C0_INEA;
  
  	/* Wait for initialization to finish. */
  	for (i = 100; i >= 0; i--) {
  		DELAY(1000);
  		/* Should have interrupted by now */
  		if (*rdp & LE_C0_IDON)
  			rv = 1;
  	} 
  	*rap = LE_CSR0;
  	*rdp = LE_C0_STOP;
  
  	bus_dmamap_unload(va->va_dmat, map);
  	bus_dmamap_destroy(va->va_dmat, map);
  	return rv;
  }
  
  static void
  le_vsbus_attach(parent, self, aux)
  	struct device *parent, *self;
  	void *aux;
  {
  	struct vsbus_attach_args *va = aux;
  	struct le_softc *sc = (void *)self;
  	bus_dma_segment_t seg;
  	int *lance_addr;
  	int i, err, rseg;
  	static int cvec;
  
  	sc->sc_rdp = (short *)vax_map_physmem(NI_BASE, 1);
  	sc->sc_rap = sc->sc_rdp + 2;
  
  	/*
  	 * MD functions.
  	 */
  	sc->sc_am7990.sc_rdcsr = lerdcsr;
  	sc->sc_am7990.sc_wrcsr = lewrcsr;
  	sc->sc_am7990.sc_nocarrier = NULL;
  
  	scb_vecalloc(va->va_cvec, (void (*)(void *)) am7990_intr, sc,
  	    SCB_ISTACK, &sc->sc_intrcnt);
  	cvec = va->va_cvec;
  	evcount_attach(&sc->sc_intrcnt, self->dv_xname, &cvec);
  
          /*
           * Allocate a (DMA-safe) block for all descriptors and buffers.
           */
  
  #define ALLOCSIZ (64 * 1024)
          err = bus_dmamem_alloc(va->va_dmat, ALLOCSIZ, NBPG, 0, 
              &seg, 1, &rseg, BUS_DMA_NOWAIT);
          if (err) {
                  printf(": unable to alloc buffer block: err %d\n", err);
                  return;
          }
          err = bus_dmamem_map(va->va_dmat, &seg, rseg, ALLOCSIZ, 
              (caddr_t *)&sc->sc_am7990.sc_mem,
  	    BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
          if (err) {
                  printf(": unable to map buffer block: err %d\n", err);
                  bus_dmamem_free(va->va_dmat, &seg, rseg);
                  return;
          }
  	err = bus_dmamap_create(va->va_dmat, ALLOCSIZ, rseg, ALLOCSIZ, 
  	    0, BUS_DMA_NOWAIT, &sc->sc_dm);
          if (err) {
                  printf(": unable to create dma map: err %d\n", err);
                  bus_dmamem_free(va->va_dmat, &seg, rseg);
                  return;
          }
  	err = bus_dmamap_load(va->va_dmat, sc->sc_dm, sc->sc_am7990.sc_mem,
  	    ALLOCSIZ, NULL, BUS_DMA_NOWAIT);
          if (err) {
                  printf(": unable to load dma map: err %d\n", err);
                  bus_dmamap_destroy(va->va_dmat, sc->sc_dm);
                  bus_dmamem_free(va->va_dmat, &seg, rseg);
                  return;
          }
  	printf(" buf 0x%lx-0x%lx", sc->sc_dm->dm_segs->ds_addr,
  	    sc->sc_dm->dm_segs->ds_addr + sc->sc_dm->dm_segs->ds_len - 1);
  	sc->sc_am7990.sc_addr = sc->sc_dm->dm_segs->ds_addr & 0xffffff;
  	sc->sc_am7990.sc_memsize = sc->sc_dm->dm_segs->ds_len;
  
  	sc->sc_am7990.sc_copytodesc = am7990_copytobuf_contig;
  	sc->sc_am7990.sc_copyfromdesc = am7990_copyfrombuf_contig;
  	sc->sc_am7990.sc_copytobuf = am7990_copytobuf_contig;
  	sc->sc_am7990.sc_copyfrombuf = am7990_copyfrombuf_contig;
  	sc->sc_am7990.sc_zerobuf = am7990_zerobuf_contig;
  
  #ifdef LEDEBUG
  	sc->sc_am7990.sc_debug = 1;
  #endif
  	/*
  	 * Get the ethernet address out of rom
  	 */
  	lance_addr = (int *)vax_map_physmem(NI_ADDR, 1);
  	for (i = 0; i < 6; i++)
  		sc->sc_am7990.sc_arpcom.ac_enaddr[i] = (u_char)lance_addr[i];
  	vax_unmap_physmem((vaddr_t)lance_addr, 1);
  
  	bcopy(self->dv_xname, sc->sc_am7990.sc_arpcom.ac_if.if_xname,
  	    IFNAMSIZ);
  	/* Prettier printout */
  	printf("\n%s", self->dv_xname);
  
  	am7990_config(&sc->sc_am7990);
  }
  