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if_le_obio.c revision 1.8.2.2
      1  1.8.2.2  nathanw /*	$NetBSD: if_le_obio.c,v 1.8.2.2 2001/06/21 19:34:22 nathanw Exp $	*/
      2      1.1       pk 
      3      1.1       pk /*-
      4      1.4  mycroft  * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
      5      1.1       pk  * All rights reserved.
      6      1.1       pk  *
      7      1.1       pk  * This code is derived from software contributed to The NetBSD Foundation
      8      1.5       pk  * by Charles M. Hannum; Jason R. Thorpe of the Numerical Aerospace
      9      1.5       pk  * Simulation Facility, NASA Ames Research Center; Paul Kranenburg.
     10      1.1       pk  *
     11      1.1       pk  * Redistribution and use in source and binary forms, with or without
     12      1.1       pk  * modification, are permitted provided that the following conditions
     13      1.1       pk  * are met:
     14      1.1       pk  * 1. Redistributions of source code must retain the above copyright
     15      1.1       pk  *    notice, this list of conditions and the following disclaimer.
     16      1.1       pk  * 2. Redistributions in binary form must reproduce the above copyright
     17      1.1       pk  *    notice, this list of conditions and the following disclaimer in the
     18      1.1       pk  *    documentation and/or other materials provided with the distribution.
     19      1.1       pk  * 3. All advertising materials mentioning features or use of this software
     20      1.1       pk  *    must display the following acknowledgement:
     21      1.1       pk  *	This product includes software developed by the NetBSD
     22      1.1       pk  *	Foundation, Inc. and its contributors.
     23      1.1       pk  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24      1.1       pk  *    contributors may be used to endorse or promote products derived
     25      1.1       pk  *    from this software without specific prior written permission.
     26      1.1       pk  *
     27      1.1       pk  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28      1.1       pk  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29      1.1       pk  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30      1.1       pk  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31      1.1       pk  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32      1.1       pk  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33      1.1       pk  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34      1.1       pk  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35      1.1       pk  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36      1.1       pk  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37      1.1       pk  * POSSIBILITY OF SUCH DAMAGE.
     38      1.1       pk  */
     39      1.1       pk 
     40      1.1       pk #include "opt_inet.h"
     41      1.1       pk #include "bpfilter.h"
     42      1.1       pk 
     43      1.1       pk #include <sys/param.h>
     44      1.1       pk #include <sys/systm.h>
     45      1.1       pk #include <sys/device.h>
     46      1.1       pk #include <sys/malloc.h>
     47      1.5       pk #include <sys/socket.h>
     48      1.1       pk 
     49      1.1       pk #include <net/if.h>
     50      1.1       pk #include <net/if_ether.h>
     51      1.1       pk #include <net/if_media.h>
     52      1.1       pk 
     53      1.8       pk #include <machine/bus.h>
     54      1.8       pk #include <machine/intr.h>
     55      1.1       pk #include <machine/autoconf.h>
     56      1.1       pk 
     57      1.1       pk #include <dev/ic/lancereg.h>
     58      1.1       pk #include <dev/ic/lancevar.h>
     59      1.1       pk #include <dev/ic/am7990reg.h>
     60      1.1       pk #include <dev/ic/am7990var.h>
     61      1.1       pk 
     62      1.1       pk /*
     63      1.1       pk  * LANCE registers.
     64      1.1       pk  */
     65      1.5       pk #define LEREG1_RDP	0	/* Register Data port */
     66      1.5       pk #define LEREG1_RAP	2	/* Register Address port */
     67      1.1       pk 
     68      1.1       pk struct	le_softc {
     69      1.5       pk 	struct	am7990_softc	sc_am7990;	/* glue to MI code */
     70      1.5       pk 	bus_space_tag_t		sc_bustag;
     71      1.5       pk 	bus_dma_tag_t		sc_dmatag;
     72      1.7       pk 	bus_dmamap_t		sc_dmamap;
     73      1.5       pk 	bus_space_handle_t	sc_reg;		/* LANCE registers */
     74      1.1       pk };
     75      1.1       pk 
     76      1.1       pk #define MEMSIZE 0x4000		/* LANCE memory size */
     77      1.1       pk 
     78      1.1       pk int	lematch_obio __P((struct device *, struct cfdata *, void *));
     79      1.1       pk void	leattach_obio __P((struct device *, struct device *, void *));
     80      1.1       pk 
     81      1.1       pk /*
     82      1.1       pk  * Media types supported.
     83      1.1       pk  */
     84      1.1       pk static int lemedia[] = {
     85      1.1       pk 	IFM_ETHER|IFM_10_T,
     86      1.1       pk };
     87      1.1       pk #define NLEMEDIA	(sizeof(lemedia) / sizeof(lemedia[0]))
     88      1.1       pk 
     89      1.1       pk struct cfattach le_obio_ca = {
     90      1.1       pk 	sizeof(struct le_softc), lematch_obio, leattach_obio
     91      1.1       pk };
     92      1.1       pk 
     93      1.1       pk extern struct cfdriver le_cd;
     94      1.1       pk 
     95  1.8.2.2  nathanw #if defined(_KERNEL_OPT)
     96      1.1       pk #include "opt_ddb.h"
     97      1.1       pk #endif
     98      1.1       pk 
     99      1.1       pk #ifdef DDB
    100      1.1       pk #define	integrate
    101      1.1       pk #define hide
    102      1.1       pk #else
    103      1.1       pk #define	integrate	static __inline
    104      1.1       pk #define hide		static
    105      1.1       pk #endif
    106      1.1       pk 
    107      1.1       pk static void lewrcsr __P((struct lance_softc *, u_int16_t, u_int16_t));
    108      1.1       pk static u_int16_t lerdcsr __P((struct lance_softc *, u_int16_t));
    109      1.1       pk 
    110      1.1       pk static void
    111      1.1       pk lewrcsr(sc, port, val)
    112      1.1       pk 	struct lance_softc *sc;
    113      1.1       pk 	u_int16_t port, val;
    114      1.1       pk {
    115      1.5       pk 	struct le_softc *lesc = (struct le_softc *)sc;
    116      1.1       pk 
    117      1.5       pk 	bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, port);
    118      1.5       pk 	bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP, val);
    119      1.1       pk }
    120      1.1       pk 
    121      1.1       pk static u_int16_t
    122      1.1       pk lerdcsr(sc, port)
    123      1.1       pk 	struct lance_softc *sc;
    124      1.1       pk 	u_int16_t port;
    125      1.1       pk {
    126      1.5       pk 	struct le_softc *lesc = (struct le_softc *)sc;
    127      1.1       pk 
    128      1.5       pk 	bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, port);
    129      1.5       pk 	return (bus_space_read_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP));
    130      1.1       pk }
    131      1.1       pk 
    132      1.1       pk int
    133      1.1       pk lematch_obio(parent, cf, aux)
    134      1.1       pk 	struct device *parent;
    135      1.1       pk 	struct cfdata *cf;
    136      1.1       pk 	void *aux;
    137      1.1       pk {
    138      1.1       pk 	union obio_attach_args *uoba = aux;
    139      1.1       pk 	struct obio4_attach_args *oba;
    140      1.1       pk 
    141      1.1       pk 	if (uoba->uoba_isobio4 == 0)
    142      1.1       pk 		return (0);
    143      1.1       pk 
    144      1.1       pk 	oba = &uoba->uoba_oba4;
    145      1.1       pk 	return (bus_space_probe(oba->oba_bustag, 0, oba->oba_paddr,
    146      1.1       pk 				2,	/* probe size */
    147      1.1       pk 				0,	/* offset */
    148      1.1       pk 				0,	/* flags */
    149      1.1       pk 				NULL, NULL));
    150      1.1       pk }
    151      1.1       pk 
    152      1.1       pk void
    153      1.1       pk leattach_obio(parent, self, aux)
    154      1.1       pk 	struct device *parent, *self;
    155      1.1       pk 	void *aux;
    156      1.1       pk {
    157      1.1       pk 	union obio_attach_args *uoba = aux;
    158      1.1       pk 	struct obio4_attach_args *oba = &uoba->uoba_oba4;
    159      1.1       pk 	struct le_softc *lesc = (struct le_softc *)self;
    160      1.1       pk 	struct lance_softc *sc = &lesc->sc_am7990.lsc;
    161      1.3       pk 	bus_dma_segment_t seg;
    162      1.7       pk 	bus_dma_tag_t dmatag;
    163      1.3       pk 	int rseg;
    164      1.7       pk 	int error;
    165      1.1       pk 	/* XXX the following declarations should be elsewhere */
    166      1.1       pk 	extern void myetheraddr __P((u_char *));
    167      1.1       pk 
    168      1.1       pk 	lesc->sc_bustag = oba->oba_bustag;
    169      1.7       pk 	lesc->sc_dmatag = dmatag = oba->oba_dmatag;
    170      1.1       pk 
    171      1.1       pk 	if (obio_bus_map(oba->oba_bustag, oba->oba_paddr,
    172      1.5       pk 			 0, 2 * sizeof(u_int16_t),
    173      1.1       pk 			 0, 0,
    174      1.5       pk 			 &lesc->sc_reg) != 0) {
    175      1.3       pk 		printf("%s @ obio: cannot map registers\n", self->dv_xname);
    176      1.1       pk 		return;
    177      1.1       pk 	}
    178      1.1       pk 
    179      1.7       pk 	/* Get a DMA handle */
    180      1.7       pk 	if ((error = bus_dmamap_create(dmatag, MEMSIZE, 1, MEMSIZE, 0,
    181      1.7       pk 					BUS_DMA_NOWAIT|BUS_DMA_24BIT,
    182      1.7       pk 					&lesc->sc_dmamap)) != 0) {
    183      1.7       pk 		printf("%s: DMA map create error %d\n",
    184      1.7       pk 			self->dv_xname, error);
    185      1.7       pk 		return;
    186      1.7       pk 	}
    187      1.7       pk 
    188      1.7       pk 	/* Allocate DMA buffer */
    189      1.7       pk 	if ((error = bus_dmamem_alloc(dmatag, MEMSIZE, NBPG, 0,
    190      1.3       pk 			     &seg, 1, &rseg,
    191      1.7       pk 			     BUS_DMA_NOWAIT | BUS_DMA_24BIT)) != 0) {
    192      1.7       pk 		printf("%s: DMA memory allocation error %d\n",
    193      1.7       pk 			self->dv_xname, error);
    194      1.3       pk 		return;
    195      1.3       pk 	}
    196      1.7       pk 	/* Map DMA buffer into kernel space */
    197      1.7       pk 	if ((error = bus_dmamem_map(dmatag, &seg, rseg, MEMSIZE,
    198      1.3       pk 			   (caddr_t *)&sc->sc_mem,
    199      1.7       pk 			   BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) != 0) {
    200      1.7       pk 		printf("%s: DMA memory map error %d\n", self->dv_xname, error);
    201      1.3       pk 		bus_dmamem_free(lesc->sc_dmatag, &seg, rseg);
    202      1.3       pk 		return;
    203      1.3       pk 	}
    204      1.7       pk 	/* Load DMA buffer */
    205  1.8.2.1  nathanw 	if ((error = bus_dmamap_load(dmatag, lesc->sc_dmamap,
    206  1.8.2.1  nathanw 				     sc->sc_mem, MEMSIZE, NULL,
    207  1.8.2.1  nathanw 				     BUS_DMA_NOWAIT)) != 0) {
    208      1.7       pk 		printf("%s: DMA buffer map load error %d\n",
    209      1.7       pk 			self->dv_xname, error);
    210      1.7       pk 		bus_dmamem_unmap(dmatag, (caddr_t)sc->sc_mem, MEMSIZE);
    211      1.7       pk 		bus_dmamem_free(dmatag, &seg, rseg);
    212      1.7       pk 		return;
    213      1.7       pk 	}
    214      1.7       pk 
    215      1.7       pk 	sc->sc_addr = lesc->sc_dmamap->dm_segs[0].ds_addr & 0xffffff;
    216      1.1       pk 	sc->sc_memsize = MEMSIZE;
    217      1.1       pk 	sc->sc_conf3 = LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON;
    218      1.1       pk 
    219      1.1       pk 	sc->sc_supmedia = lemedia;
    220      1.1       pk 	sc->sc_nsupmedia = NLEMEDIA;
    221      1.1       pk 	sc->sc_defaultmedia = lemedia[0];
    222      1.1       pk 
    223      1.1       pk 	myetheraddr(sc->sc_enaddr);
    224      1.1       pk 
    225      1.1       pk 	sc->sc_copytodesc = lance_copytobuf_contig;
    226      1.1       pk 	sc->sc_copyfromdesc = lance_copyfrombuf_contig;
    227      1.1       pk 	sc->sc_copytobuf = lance_copytobuf_contig;
    228      1.1       pk 	sc->sc_copyfrombuf = lance_copyfrombuf_contig;
    229      1.1       pk 	sc->sc_zerobuf = lance_zerobuf_contig;
    230      1.1       pk 
    231      1.1       pk 	sc->sc_rdcsr = lerdcsr;
    232      1.1       pk 	sc->sc_wrcsr = lewrcsr;
    233      1.1       pk 
    234      1.1       pk 	am7990_config(&lesc->sc_am7990);
    235      1.1       pk 
    236      1.1       pk 	/* Install interrupt */
    237      1.8       pk 	(void)bus_intr_establish(lesc->sc_bustag, oba->oba_pri, IPL_NET, 0,
    238      1.1       pk 				 am7990_intr, sc);
    239      1.1       pk }
    240