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if_le_ibus.c revision 1.1.2.1
      1  1.1.2.1  nisimura /*	$NetBSD: if_le_ibus.c,v 1.1.2.1 1998/10/15 02:41:16 nisimura Exp $	*/
      2  1.1.2.1  nisimura 
      3  1.1.2.1  nisimura /*
      4  1.1.2.1  nisimura  * Copyright 1996 The Board of Trustees of The Leland Stanford
      5  1.1.2.1  nisimura  * Junior University. All Rights Reserved.
      6  1.1.2.1  nisimura  *
      7  1.1.2.1  nisimura  * Permission to use, copy, modify, and distribute this
      8  1.1.2.1  nisimura  * software and its documentation for any purpose and without
      9  1.1.2.1  nisimura  * fee is hereby granted, provided that the above copyright
     10  1.1.2.1  nisimura  * notice appear in all copies.  Stanford University
     11  1.1.2.1  nisimura  * makes no representations about the suitability of this
     12  1.1.2.1  nisimura  * software for any purpose.  It is provided "as is" without
     13  1.1.2.1  nisimura  * express or implied warranty.
     14  1.1.2.1  nisimura  *
     15  1.1.2.1  nisimura  * This driver was contributed by Jonathan Stone.
     16  1.1.2.1  nisimura  */
     17  1.1.2.1  nisimura 
     18  1.1.2.1  nisimura /*
     19  1.1.2.1  nisimura  * LANCE on Decstation kn01/kn230 baseboard.
     20  1.1.2.1  nisimura  */
     21  1.1.2.1  nisimura #include "opt_inet.h"
     22  1.1.2.1  nisimura 
     23  1.1.2.1  nisimura #include <sys/param.h>
     24  1.1.2.1  nisimura #include <sys/systm.h>
     25  1.1.2.1  nisimura #include <sys/mbuf.h>
     26  1.1.2.1  nisimura #include <sys/syslog.h>
     27  1.1.2.1  nisimura #include <sys/socket.h>
     28  1.1.2.1  nisimura #include <sys/device.h>
     29  1.1.2.1  nisimura 
     30  1.1.2.1  nisimura #include <net/if.h>
     31  1.1.2.1  nisimura #include <net/if_ether.h>
     32  1.1.2.1  nisimura #include <net/if_media.h>
     33  1.1.2.1  nisimura 
     34  1.1.2.1  nisimura #ifdef INET
     35  1.1.2.1  nisimura #include <netinet/in.h>
     36  1.1.2.1  nisimura #include <netinet/if_inarp.h>
     37  1.1.2.1  nisimura #endif
     38  1.1.2.1  nisimura 
     39  1.1.2.1  nisimura #include <dev/ic/lancereg.h>
     40  1.1.2.1  nisimura #include <dev/ic/lancevar.h>
     41  1.1.2.1  nisimura #include <dev/ic/am7990reg.h>
     42  1.1.2.1  nisimura #include <dev/ic/am7990var.h>
     43  1.1.2.1  nisimura 
     44  1.1.2.1  nisimura #include <dev/tc/if_levar.h>
     45  1.1.2.1  nisimura #include <dev/tc/tcvar.h>
     46  1.1.2.1  nisimura #include <machine/autoconf.h>
     47  1.1.2.1  nisimura #include <pmax/ibus/ibusvar.h>
     48  1.1.2.1  nisimura #include <pmax/pmax/kn01.h>
     49  1.1.2.1  nisimura 
     50  1.1.2.1  nisimura extern void le_dec_copytobuf_gap2 __P((struct lance_softc *, void *,
     51  1.1.2.1  nisimura 	    int, int));
     52  1.1.2.1  nisimura extern void le_dec_copyfrombuf_gap2 __P((struct lance_softc *, void *,
     53  1.1.2.1  nisimura 	    int, int));
     54  1.1.2.1  nisimura 
     55  1.1.2.1  nisimura #if defined(_KERNEL) && !defined(_LKM)
     56  1.1.2.1  nisimura #include "opt_ddb.h"
     57  1.1.2.1  nisimura #endif
     58  1.1.2.1  nisimura 
     59  1.1.2.1  nisimura #ifdef DDB
     60  1.1.2.1  nisimura #define	integrate
     61  1.1.2.1  nisimura #define hide
     62  1.1.2.1  nisimura #else
     63  1.1.2.1  nisimura #define	integrate	static __inline
     64  1.1.2.1  nisimura #define hide		static
     65  1.1.2.1  nisimura #endif
     66  1.1.2.1  nisimura 
     67  1.1.2.1  nisimura hide void le_dec_zerobuf_gap2 __P((struct lance_softc *, int, int));
     68  1.1.2.1  nisimura 
     69  1.1.2.1  nisimura 
     70  1.1.2.1  nisimura int	le_pmax_match __P((struct device *, struct cfdata *, void *));
     71  1.1.2.1  nisimura void	le_pmax_attach __P((struct device *, struct device *, void *));
     72  1.1.2.1  nisimura 
     73  1.1.2.1  nisimura struct cfattach le_pmax_ca = {
     74  1.1.2.1  nisimura 	sizeof(struct le_softc), le_pmax_match, le_pmax_attach
     75  1.1.2.1  nisimura };
     76  1.1.2.1  nisimura 
     77  1.1.2.1  nisimura int
     78  1.1.2.1  nisimura le_pmax_match(parent, match, aux)
     79  1.1.2.1  nisimura 	struct device *parent;
     80  1.1.2.1  nisimura 	struct cfdata *match;
     81  1.1.2.1  nisimura 	void *aux;
     82  1.1.2.1  nisimura {
     83  1.1.2.1  nisimura   	struct ibus_attach_args *d = aux;
     84  1.1.2.1  nisimura #define	CFNAME(cf) ((cf)->dv_cfdata->cf_driver->cd_name)
     85  1.1.2.1  nisimura 
     86  1.1.2.1  nisimura 	if (strcmp(CFNAME(parent), "ibus") != 0)
     87  1.1.2.1  nisimura 		return (0);
     88  1.1.2.1  nisimura 	if (strcmp("lance", d->ia_name) != 0)
     89  1.1.2.1  nisimura 		return (0);
     90  1.1.2.1  nisimura 	return (1);
     91  1.1.2.1  nisimura #undef CFNAME
     92  1.1.2.1  nisimura }
     93  1.1.2.1  nisimura 
     94  1.1.2.1  nisimura void
     95  1.1.2.1  nisimura le_pmax_attach(parent, self, aux)
     96  1.1.2.1  nisimura 	struct device *parent, *self;
     97  1.1.2.1  nisimura 	void *aux;
     98  1.1.2.1  nisimura {
     99  1.1.2.1  nisimura 	register struct le_softc *lesc = (void *)self;
    100  1.1.2.1  nisimura 	register struct lance_softc *sc = &lesc->sc_am7990.lsc;
    101  1.1.2.1  nisimura 	register u_char *cp;
    102  1.1.2.1  nisimura 	register struct ibus_attach_args *ia = aux;
    103  1.1.2.1  nisimura 
    104  1.1.2.1  nisimura 	/*
    105  1.1.2.1  nisimura 	 * It's on the baseboard, with a dedicated interrupt line.
    106  1.1.2.1  nisimura 	 */
    107  1.1.2.1  nisimura 	lesc->sc_r1 = (struct lereg1 *)(ia->ia_addr);
    108  1.1.2.1  nisimura /*XXX*/	sc->sc_mem = (void *)TC_PHYS_TO_UNCACHED(0x19000000);
    109  1.1.2.1  nisimura /*XXX*/	cp = (u_char *)(TC_PHYS_TO_UNCACHED(KN01_SYS_CLOCK) + 1);
    110  1.1.2.1  nisimura 
    111  1.1.2.1  nisimura 	sc->sc_copytodesc = le_dec_copytobuf_gap2;
    112  1.1.2.1  nisimura 	sc->sc_copyfromdesc = le_dec_copyfrombuf_gap2;
    113  1.1.2.1  nisimura 	sc->sc_copytobuf = le_dec_copytobuf_gap2;
    114  1.1.2.1  nisimura 	sc->sc_copyfrombuf = le_dec_copyfrombuf_gap2;
    115  1.1.2.1  nisimura 	sc->sc_zerobuf = le_dec_zerobuf_gap2;
    116  1.1.2.1  nisimura 
    117  1.1.2.1  nisimura 	dec_le_common_attach(&lesc->sc_am7990, cp);
    118  1.1.2.1  nisimura 
    119  1.1.2.1  nisimura 	ibus_intr_establish(parent, ia->ia_cookie, IPL_NET, am7990_intr, sc);
    120  1.1.2.1  nisimura }
    121  1.1.2.1  nisimura 
    122  1.1.2.1  nisimura /*
    123  1.1.2.1  nisimura  * gap2: two bytes of data followed by two bytes of pad.
    124  1.1.2.1  nisimura  *
    125  1.1.2.1  nisimura  * Buffers must be 4-byte aligned.  The code doesn't worry about
    126  1.1.2.1  nisimura  * doing an extra byte.
    127  1.1.2.1  nisimura  */
    128  1.1.2.1  nisimura 
    129  1.1.2.1  nisimura void
    130  1.1.2.1  nisimura le_dec_copytobuf_gap2(sc, fromv, boff, len)
    131  1.1.2.1  nisimura 	struct lance_softc *sc;
    132  1.1.2.1  nisimura 	void *fromv;
    133  1.1.2.1  nisimura 	int boff;
    134  1.1.2.1  nisimura 	register int len;
    135  1.1.2.1  nisimura {
    136  1.1.2.1  nisimura 	volatile caddr_t buf = sc->sc_mem;
    137  1.1.2.1  nisimura 	register caddr_t from = fromv;
    138  1.1.2.1  nisimura 	register volatile u_int16_t *bptr;
    139  1.1.2.1  nisimura 
    140  1.1.2.1  nisimura 	if (boff & 0x1) {
    141  1.1.2.1  nisimura 		/* handle unaligned first byte */
    142  1.1.2.1  nisimura 		bptr = ((volatile u_int16_t *)buf) + (boff - 1);
    143  1.1.2.1  nisimura 		*bptr = (*from++ << 8) | (*bptr & 0xff);
    144  1.1.2.1  nisimura 		bptr += 2;
    145  1.1.2.1  nisimura 		len--;
    146  1.1.2.1  nisimura 	} else
    147  1.1.2.1  nisimura 		bptr = ((volatile u_int16_t *)buf) + boff;
    148  1.1.2.1  nisimura 	while (len > 1) {
    149  1.1.2.1  nisimura 		*bptr = (from[1] << 8) | (from[0] & 0xff);
    150  1.1.2.1  nisimura 		bptr += 2;
    151  1.1.2.1  nisimura 		from += 2;
    152  1.1.2.1  nisimura 		len -= 2;
    153  1.1.2.1  nisimura 	}
    154  1.1.2.1  nisimura 	if (len == 1)
    155  1.1.2.1  nisimura 		*bptr = (u_int16_t)*from;
    156  1.1.2.1  nisimura }
    157  1.1.2.1  nisimura 
    158  1.1.2.1  nisimura void
    159  1.1.2.1  nisimura le_dec_copyfrombuf_gap2(sc, tov, boff, len)
    160  1.1.2.1  nisimura 	struct lance_softc *sc;
    161  1.1.2.1  nisimura 	void *tov;
    162  1.1.2.1  nisimura 	int boff, len;
    163  1.1.2.1  nisimura {
    164  1.1.2.1  nisimura 	volatile caddr_t buf = sc->sc_mem;
    165  1.1.2.1  nisimura 	register caddr_t to = tov;
    166  1.1.2.1  nisimura 	register volatile u_int16_t *bptr;
    167  1.1.2.1  nisimura 	register u_int16_t tmp;
    168  1.1.2.1  nisimura 
    169  1.1.2.1  nisimura 	if (boff & 0x1) {
    170  1.1.2.1  nisimura 		/* handle unaligned first byte */
    171  1.1.2.1  nisimura 		bptr = ((volatile u_int16_t *)buf) + (boff - 1);
    172  1.1.2.1  nisimura 		*to++ = (*bptr >> 8) & 0xff;
    173  1.1.2.1  nisimura 		bptr += 2;
    174  1.1.2.1  nisimura 		len--;
    175  1.1.2.1  nisimura 	} else
    176  1.1.2.1  nisimura 		bptr = ((volatile u_int16_t *)buf) + boff;
    177  1.1.2.1  nisimura 	while (len > 1) {
    178  1.1.2.1  nisimura 		tmp = *bptr;
    179  1.1.2.1  nisimura 		*to++ = tmp & 0xff;
    180  1.1.2.1  nisimura 		*to++ = (tmp >> 8) & 0xff;
    181  1.1.2.1  nisimura 		bptr += 2;
    182  1.1.2.1  nisimura 		len -= 2;
    183  1.1.2.1  nisimura 	}
    184  1.1.2.1  nisimura 	if (len == 1)
    185  1.1.2.1  nisimura 		*to = *bptr & 0xff;
    186  1.1.2.1  nisimura }
    187  1.1.2.1  nisimura 
    188  1.1.2.1  nisimura void
    189  1.1.2.1  nisimura le_dec_zerobuf_gap2(sc, boff, len)
    190  1.1.2.1  nisimura 	struct lance_softc *sc;
    191  1.1.2.1  nisimura 	int boff, len;
    192  1.1.2.1  nisimura {
    193  1.1.2.1  nisimura 	volatile caddr_t buf = sc->sc_mem;
    194  1.1.2.1  nisimura 	register volatile u_int16_t *bptr;
    195  1.1.2.1  nisimura 
    196  1.1.2.1  nisimura 	if ((unsigned)boff & 0x1) {
    197  1.1.2.1  nisimura 		bptr = ((volatile u_int16_t *)buf) + (boff - 1);
    198  1.1.2.1  nisimura 		*bptr &= 0xff;
    199  1.1.2.1  nisimura 		bptr += 2;
    200  1.1.2.1  nisimura 		len--;
    201  1.1.2.1  nisimura 	} else
    202  1.1.2.1  nisimura 		bptr = ((volatile u_int16_t *)buf) + boff;
    203  1.1.2.1  nisimura 	while (len > 0) {
    204  1.1.2.1  nisimura 		*bptr = 0;
    205  1.1.2.1  nisimura 		bptr += 2;
    206  1.1.2.1  nisimura 		len -= 2;
    207  1.1.2.1  nisimura 	}
    208  1.1.2.1  nisimura }
    209