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if_mbe_pcmcia.c revision 1.46
      1 /*	$NetBSD: if_mbe_pcmcia.c,v 1.46 2009/05/12 14:42:18 cegger Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998, 2000, 2004 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Enami Tsugutomo.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: if_mbe_pcmcia.c,v 1.46 2009/05/12 14:42:18 cegger Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 #include <sys/device.h>
     38 #include <sys/socket.h>
     39 
     40 #include <net/if.h>
     41 #include <net/if_ether.h>
     42 #include <net/if_media.h>
     43 
     44 #include <sys/intr.h>
     45 #include <sys/bus.h>
     46 
     47 #include <dev/ic/mb86960reg.h>
     48 #include <dev/ic/mb86960var.h>
     49 
     50 #include <dev/pcmcia/pcmciareg.h>
     51 #include <dev/pcmcia/pcmciavar.h>
     52 #include <dev/pcmcia/pcmciadevs.h>
     53 
     54 int	mbe_pcmcia_match(device_t, cfdata_t, void *);
     55 int	mbe_pcmcia_validate_config(struct pcmcia_config_entry *);
     56 void	mbe_pcmcia_attach(device_t, device_t, void *);
     57 int	mbe_pcmcia_detach(device_t, int);
     58 
     59 struct mbe_pcmcia_softc {
     60 	struct	mb86960_softc sc_mb86960;	/* real "mb" softc */
     61 
     62 	struct	pcmcia_function *sc_pf;		/* our PCMCIA function */
     63 	void	*sc_ih;				/* interrupt cookie */
     64 
     65 	int	sc_state;
     66 #define	MBE_PCMCIA_ATTACHED	3
     67 };
     68 
     69 CFATTACH_DECL_NEW(mbe_pcmcia, sizeof(struct mbe_pcmcia_softc),
     70     mbe_pcmcia_match, mbe_pcmcia_attach, mbe_pcmcia_detach, mb86960_activate);
     71 
     72 int	mbe_pcmcia_enable(struct mb86960_softc *);
     73 void	mbe_pcmcia_disable(struct mb86960_softc *);
     74 
     75 struct mbe_pcmcia_get_enaddr_args {
     76 	uint8_t enaddr[ETHER_ADDR_LEN];
     77 	int maddr;
     78 };
     79 int	mbe_pcmcia_get_enaddr_from_cis(struct pcmcia_tuple *, void *);
     80 int	mbe_pcmcia_get_enaddr_from_mem(struct mbe_pcmcia_softc *,
     81 	    struct mbe_pcmcia_get_enaddr_args *);
     82 int	mbe_pcmcia_get_enaddr_from_io(struct mbe_pcmcia_softc *,
     83 	    struct mbe_pcmcia_get_enaddr_args *);
     84 
     85 static const struct mbe_pcmcia_product {
     86 	struct pcmcia_product mpp_product;
     87 	int		mpp_enet_maddr;
     88 	int		mpp_flags;
     89 #define MBH10302	0x0001			/* FUJITSU MBH10302 */
     90 } mbe_pcmcia_products[] = {
     91 	{ { PCMCIA_VENDOR_TDK, PCMCIA_PRODUCT_TDK_LAK_CD021BX,
     92 	    PCMCIA_CIS_TDK_LAK_CD021BX },
     93 	  -1, 0 },
     94 
     95 	{ { PCMCIA_VENDOR_TDK, PCMCIA_PRODUCT_TDK_LAK_CF010,
     96 	    PCMCIA_CIS_TDK_LAK_CF010 },
     97 	  -1, 0 },
     98 
     99 #if 0 /* XXX 86960-based? */
    100 	{ { PCMCIA_VENDOR_TDK, PCMCIA_PRODUCT_TDK_LAK_DFL9610,
    101 	    PCMCIA_CIS_TDK_DFL9610 },
    102 	  -1, MBH10302 /* XXX */ },
    103 #endif
    104 
    105 	{ { PCMCIA_VENDOR_CONTEC, PCMCIA_PRODUCT_CONTEC_CNETPC,
    106 	    PCMCIA_CIS_CONTEC_CNETPC },
    107 	  -1, 0 },
    108 
    109 	{ { PCMCIA_VENDOR_FUJITSU, PCMCIA_PRODUCT_FUJITSU_LA501,
    110 	    PCMCIA_CIS_FUJITSU_LA501 },
    111 	  -1, 0 },
    112 
    113 	{ { PCMCIA_VENDOR_FUJITSU, PCMCIA_PRODUCT_FUJITSU_FMV_J181,
    114 	    PCMCIA_CIS_FUJITSU_FMV_J181 },
    115 	  -1, MBH10302 },
    116 
    117 	{ { PCMCIA_VENDOR_FUJITSU, PCMCIA_PRODUCT_FUJITSU_FMV_J182,
    118 	    PCMCIA_CIS_FUJITSU_FMV_J182 },
    119 	  0xf2c, 0 },
    120 
    121 	{ { PCMCIA_VENDOR_FUJITSU, PCMCIA_PRODUCT_FUJITSU_FMV_J182A,
    122 	    PCMCIA_CIS_FUJITSU_FMV_J182A },
    123 	  0x1cc, 0 },
    124 
    125 	{ { PCMCIA_VENDOR_FUJITSU, PCMCIA_PRODUCT_FUJITSU_ITCFJ182A,
    126 	    PCMCIA_CIS_FUJITSU_ITCFJ182A },
    127 	  0x1cc, 0 },
    128 
    129 	{ { PCMCIA_VENDOR_FUJITSU, PCMCIA_PRODUCT_FUJITSU_LA10S,
    130 	    PCMCIA_CIS_FUJITSU_LA10S },
    131 	  -1, 0 },
    132 
    133 	{ { PCMCIA_VENDOR_RATOC, PCMCIA_PRODUCT_RATOC_REX_R280,
    134 	    PCMCIA_CIS_RATOC_REX_R280 },
    135 	  0x1fc, 0 },
    136 };
    137 static const size_t mbe_pcmcia_nproducts = __arraycount(mbe_pcmcia_products);
    138 
    139 int
    140 mbe_pcmcia_match(device_t parent, cfdata_t cf, void *aux)
    141 {
    142 	struct pcmcia_attach_args *pa = aux;
    143 
    144 	if (pcmcia_product_lookup(pa, mbe_pcmcia_products, mbe_pcmcia_nproducts,
    145 	    sizeof(mbe_pcmcia_products[0]), NULL))
    146 		return 1;
    147 	return 0;
    148 }
    149 
    150 int
    151 mbe_pcmcia_validate_config(struct pcmcia_config_entry *cfe)
    152 {
    153 
    154 	if (cfe->iftype != PCMCIA_IFTYPE_IO ||
    155 	    cfe->num_iospace < 1)
    156 		return EINVAL;
    157 	return 0;
    158 }
    159 
    160 void
    161 mbe_pcmcia_attach(device_t parent, device_t self, void *aux)
    162 {
    163 	struct mbe_pcmcia_softc *psc = device_private(self);
    164 	struct mb86960_softc *sc = &psc->sc_mb86960;
    165 	struct pcmcia_attach_args *pa = aux;
    166 	struct pcmcia_config_entry *cfe;
    167 	struct mbe_pcmcia_get_enaddr_args pgea;
    168 	const struct mbe_pcmcia_product *mpp;
    169 	int error;
    170 
    171 	sc->sc_dev = self;
    172 	psc->sc_pf = pa->pf;
    173 
    174 	error = pcmcia_function_configure(pa->pf, mbe_pcmcia_validate_config);
    175 	if (error) {
    176 		aprint_error_dev(self, "configure failed, error=%d\n",
    177 		    error);
    178 		return;
    179 	}
    180 
    181 	cfe = pa->pf->cfe;
    182 	sc->sc_bst = cfe->iospace[0].handle.iot;
    183 	sc->sc_bsh = cfe->iospace[0].handle.ioh;
    184 
    185 	mpp = pcmcia_product_lookup(pa, mbe_pcmcia_products,
    186 	    mbe_pcmcia_nproducts, sizeof(mbe_pcmcia_products[0]), NULL);
    187 	if (!mpp)
    188 		panic("%s: impossible", __func__);
    189 
    190 	/* Read station address from io/mem or CIS. */
    191 	if (mpp->mpp_enet_maddr >= 0) {
    192 		pgea.maddr = mpp->mpp_enet_maddr;
    193 		if (mbe_pcmcia_get_enaddr_from_mem(psc, &pgea) != 0) {
    194 			aprint_error_dev(self, "couldn't get ethernet address "
    195 			    "from memory\n");
    196 			goto fail;
    197 		}
    198 	} else if (mpp->mpp_flags & MBH10302) {
    199 		bus_space_write_1(sc->sc_bst, sc->sc_bsh, FE_MBH0 ,
    200 				  FE_MBH0_MASK | FE_MBH0_INTR_ENABLE);
    201 		if (mbe_pcmcia_get_enaddr_from_io(psc, &pgea) != 0) {
    202 			aprint_error_dev(self,
    203 			    "couldn't get ethernet address from i/o\n");
    204 			goto fail;
    205 		}
    206 	} else {
    207 		if (pa->pf->pf_funce_lan_nidlen != ETHER_ADDR_LEN) {
    208 			aprint_error_dev(self,
    209 			    "couldn't get ethernet address from CIS\n");
    210 			goto fail;
    211 		}
    212 		memcpy(pgea.enaddr, pa->pf->pf_funce_lan_nid, ETHER_ADDR_LEN);
    213 	}
    214 
    215 	/* Perform generic initialization. */
    216 	if (mpp->mpp_flags & MBH10302)
    217 		sc->sc_flags |= FE_FLAGS_MB86960;
    218 
    219 	sc->sc_enable = mbe_pcmcia_enable;
    220 	sc->sc_disable = mbe_pcmcia_disable;
    221 
    222 	error = mbe_pcmcia_enable(sc);
    223 	if (error)
    224 		goto fail;
    225 
    226 	mb86960_attach(sc, pgea.enaddr);
    227 	mb86960_config(sc, NULL, 0, 0);
    228 
    229 	mbe_pcmcia_disable(sc);
    230 	psc->sc_state = MBE_PCMCIA_ATTACHED;
    231 	return;
    232 
    233 fail:
    234 	pcmcia_function_unconfigure(pa->pf);
    235 }
    236 
    237 int
    238 mbe_pcmcia_detach(device_t self, int flags)
    239 {
    240 	struct mbe_pcmcia_softc *psc = device_private(self);
    241 	int error;
    242 
    243 	if (psc->sc_state != MBE_PCMCIA_ATTACHED)
    244 		return 0;
    245 
    246 	error = mb86960_detach(&psc->sc_mb86960);
    247 	if (error)
    248 		return error;
    249 
    250 	pcmcia_function_unconfigure(psc->sc_pf);
    251 
    252 	return 0;
    253 }
    254 
    255 int
    256 mbe_pcmcia_enable(struct mb86960_softc *sc)
    257 {
    258 	struct mbe_pcmcia_softc *psc = (struct mbe_pcmcia_softc *)sc;
    259 	int error;
    260 
    261 	/* Establish the interrupt handler. */
    262 	psc->sc_ih = pcmcia_intr_establish(psc->sc_pf, IPL_NET, mb86960_intr,
    263 	    sc);
    264 	if (!psc->sc_ih)
    265 		return EIO;
    266 
    267 	error = pcmcia_function_enable(psc->sc_pf);
    268 	if (error) {
    269 		pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
    270 		psc->sc_ih = 0;
    271 	}
    272 
    273 	return error;
    274 }
    275 
    276 void
    277 mbe_pcmcia_disable(struct mb86960_softc *sc)
    278 {
    279 	struct mbe_pcmcia_softc *psc = (struct mbe_pcmcia_softc *)sc;
    280 
    281 	pcmcia_function_disable(psc->sc_pf);
    282 	pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
    283 	psc->sc_ih = 0;
    284 }
    285 
    286 int
    287 mbe_pcmcia_get_enaddr_from_io(struct mbe_pcmcia_softc *psc,
    288     struct mbe_pcmcia_get_enaddr_args *ea)
    289 {
    290 	struct mb86960_softc *sc = &psc->sc_mb86960;
    291 	int i;
    292 
    293 	for (i = 0; i < ETHER_ADDR_LEN; i++)
    294 		ea->enaddr[i] = bus_space_read_1(sc->sc_bst, sc->sc_bsh,
    295 		    FE_MBH_ENADDR + i);
    296 	return 0;
    297 }
    298 
    299 int
    300 mbe_pcmcia_get_enaddr_from_mem(struct mbe_pcmcia_softc *psc,
    301     struct mbe_pcmcia_get_enaddr_args *ea)
    302 {
    303 	struct mb86960_softc *sc = &psc->sc_mb86960;
    304 	struct pcmcia_mem_handle pcmh;
    305 	bus_size_t offset;
    306 	int i, mwindow, rv = 1;
    307 
    308 	if (ea->maddr < 0)
    309 		goto bad_memaddr;
    310 
    311 	if (pcmcia_mem_alloc(psc->sc_pf, ETHER_ADDR_LEN * 2, &pcmh)) {
    312 		aprint_error_dev(sc->sc_dev, "can't alloc mem for enet addr\n");
    313 		goto memalloc_failed;
    314 	}
    315 
    316 	if (pcmcia_mem_map(psc->sc_pf, PCMCIA_MEM_ATTR, ea->maddr,
    317 	    ETHER_ADDR_LEN * 2, &pcmh, &offset, &mwindow)) {
    318 		aprint_error_dev(sc->sc_dev, "can't map mem for enet addr\n");
    319 		goto memmap_failed;
    320 	}
    321 
    322 	for (i = 0; i < ETHER_ADDR_LEN; i++)
    323 		ea->enaddr[i] = bus_space_read_1(pcmh.memt, pcmh.memh,
    324 		    offset + (i * 2));
    325 
    326 	rv = 0;
    327 	pcmcia_mem_unmap(psc->sc_pf, mwindow);
    328 memmap_failed:
    329 	pcmcia_mem_free(psc->sc_pf, &pcmh);
    330 memalloc_failed:
    331 bad_memaddr:
    332 
    333 	return rv;
    334 }
    335