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if_wi_pci.c revision 1.7
      1  1.7  jdolecek /*      $NetBSD: if_wi_pci.c,v 1.7 2002/04/04 17:43:33 jdolecek Exp $  */
      2  1.1    ichiro 
      3  1.1    ichiro /*-
      4  1.1    ichiro  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5  1.1    ichiro  * All rights reserved.
      6  1.1    ichiro  *
      7  1.1    ichiro  * This code is derived from software contributed to The NetBSD Foundation
      8  1.1    ichiro  * by Hideaki Imaizumi <hiddy (at) sfc.wide.ad.jp>
      9  1.1    ichiro  * and Ichiro FUKUHARA (ichiro (at) ichiro.org).
     10  1.1    ichiro  *
     11  1.1    ichiro  * Redistribution and use in source and binary forms, with or without
     12  1.1    ichiro  * modification, are permitted provided that the following conditions
     13  1.1    ichiro  * are met:
     14  1.1    ichiro  * 1. Redistributions of source code must retain the above copyright
     15  1.1    ichiro  *    notice, this list of conditions and the following disclaimer.
     16  1.1    ichiro  * 2. Redistributions in binary form must reproduce the above copyright
     17  1.1    ichiro  *    notice, this list of conditions and the following disclaimer in the
     18  1.1    ichiro  *    documentation and/or other materials provided with the distribution.
     19  1.1    ichiro  * 3. All advertising materials mentioning features or use of this software
     20  1.1    ichiro  *    must display the following acknowledgement:
     21  1.1    ichiro  *        This product includes software developed by the NetBSD
     22  1.1    ichiro  *        Foundation, Inc. and its contributors.
     23  1.1    ichiro  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24  1.1    ichiro  *    contributors may be used to endorse or promote products derived
     25  1.1    ichiro  *    from this software without specific prior written permission.
     26  1.1    ichiro  *
     27  1.1    ichiro  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28  1.1    ichiro  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29  1.1    ichiro  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30  1.1    ichiro  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31  1.1    ichiro  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32  1.1    ichiro  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33  1.1    ichiro  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34  1.1    ichiro  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35  1.1    ichiro  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36  1.1    ichiro  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37  1.1    ichiro  * POSSIBILITY OF SUCH DAMAGE.
     38  1.1    ichiro  */
     39  1.1    ichiro 
     40  1.1    ichiro /*
     41  1.1    ichiro  * PCI bus front-end for the Intersil PCI WaveLan.
     42  1.1    ichiro  * Works with Prism2.5 Mini-PCI wavelan.
     43  1.1    ichiro  */
     44  1.2     lukem 
     45  1.2     lukem #include <sys/cdefs.h>
     46  1.7  jdolecek __KERNEL_RCSID(0, "$NetBSD: if_wi_pci.c,v 1.7 2002/04/04 17:43:33 jdolecek Exp $");
     47  1.1    ichiro 
     48  1.1    ichiro #include <sys/param.h>
     49  1.1    ichiro #include <sys/systm.h>
     50  1.1    ichiro #include <sys/mbuf.h>
     51  1.1    ichiro #include <sys/syslog.h>
     52  1.1    ichiro #include <sys/socket.h>
     53  1.1    ichiro #include <sys/device.h>
     54  1.1    ichiro #include <sys/callout.h>
     55  1.1    ichiro 
     56  1.1    ichiro #include <net/if.h>
     57  1.1    ichiro #include <net/if_ether.h>
     58  1.1    ichiro #include <net/if_media.h>
     59  1.1    ichiro #include <net/if_ieee80211.h>
     60  1.1    ichiro 
     61  1.1    ichiro #include <machine/bus.h>
     62  1.1    ichiro #include <machine/intr.h>
     63  1.1    ichiro 
     64  1.1    ichiro #include <dev/pci/pcireg.h>
     65  1.1    ichiro #include <dev/pci/pcivar.h>
     66  1.1    ichiro #include <dev/pci/pcidevs.h>
     67  1.1    ichiro 
     68  1.1    ichiro #include <dev/ic/wi_ieee.h>
     69  1.1    ichiro #include <dev/ic/wireg.h>
     70  1.1    ichiro #include <dev/ic/wivar.h>
     71  1.1    ichiro 
     72  1.3  augustss #define WI_PCI_PLX_LOMEM	0x10	/* PLX chip membase */
     73  1.3  augustss #define WI_PCI_PLX_LOIO		0x14	/* PLX chip iobase */
     74  1.3  augustss #define WI_PCI_LOMEM		0x18	/* ISA membase */
     75  1.3  augustss #define WI_PCI_LOIO		0x1C	/* ISA iobase */
     76  1.3  augustss 
     77  1.3  augustss #define WI_PLX_COR_OFFSET       0x3E0
     78  1.3  augustss #define WI_PLX_COR_VALUE        0x41
     79  1.3  augustss 
     80  1.1    ichiro struct wi_pci_softc {
     81  1.1    ichiro 	struct wi_softc psc_wi;		/* real "wi" softc */
     82  1.1    ichiro 
     83  1.1    ichiro 	/* PCI-specific goo */
     84  1.1    ichiro 	pci_intr_handle_t psc_ih;
     85  1.1    ichiro 	struct pci_attach_args *psc_pa;
     86  1.1    ichiro 
     87  1.1    ichiro 	void *sc_powerhook;		/* power hook descriptor */
     88  1.1    ichiro };
     89  1.1    ichiro 
     90  1.1    ichiro static int	wi_pci_match __P((struct device *, struct cfdata *, void *));
     91  1.1    ichiro static void	wi_pci_attach __P((struct device *, struct device *, void *));
     92  1.1    ichiro static int	wi_pci_enable __P((struct wi_softc *));
     93  1.1    ichiro static void	wi_pci_disable __P((struct wi_softc *));
     94  1.7  jdolecek static void	wi_pci_reset __P((struct wi_softc *));
     95  1.1    ichiro static void	wi_pci_powerhook __P((int, void *));
     96  1.1    ichiro 
     97  1.1    ichiro static const struct wi_pci_product
     98  1.1    ichiro 	*wi_pci_lookup __P((struct pci_attach_args *));
     99  1.1    ichiro 
    100  1.1    ichiro struct cfattach wi_pci_ca = {
    101  1.1    ichiro 	sizeof(struct wi_pci_softc), wi_pci_match, wi_pci_attach
    102  1.1    ichiro };
    103  1.1    ichiro 
    104  1.1    ichiro const struct wi_pci_product {
    105  1.1    ichiro 	pci_vendor_id_t		wpp_vendor;	/* vendor ID */
    106  1.1    ichiro 	pci_product_id_t	wpp_product;	/* product ID */
    107  1.1    ichiro 	const char		*wpp_name;	/* product name */
    108  1.3  augustss 	int			wpp_plx;	/* uses PLX chip */
    109  1.1    ichiro } wi_pci_products[] = {
    110  1.3  augustss 	{ PCI_VENDOR_GLOBALSUN,		PCI_PRODUCT_GLOBALSUN_GL24110P,
    111  1.3  augustss 	  NULL, 1 },
    112  1.3  augustss 	{ PCI_VENDOR_GLOBALSUN,		PCI_PRODUCT_GLOBALSUN_GL24110P02,
    113  1.3  augustss 	  NULL, 1 },
    114  1.3  augustss 	{ PCI_VENDOR_EUMITCOM,		PCI_PRODUCT_EUMITCOM_WL11000P,
    115  1.3  augustss 	  NULL, 1 },
    116  1.3  augustss 	{ PCI_VENDOR_3COM,		PCI_PRODUCT_3COM_3CRWE777A,
    117  1.3  augustss 	  NULL, 1 },
    118  1.3  augustss 	{ PCI_VENDOR_NETGEAR,		PCI_PRODUCT_NETGEAR_MA301,
    119  1.3  augustss 	  NULL, 1 },
    120  1.1    ichiro 	{ PCI_VENDOR_INTERSIL,		PCI_PRODUCT_INTERSIL_MINI_PCI_WLAN,
    121  1.3  augustss 	  "Intersil Prism2.5", 0 },
    122  1.1    ichiro 	{ 0,				0,
    123  1.3  augustss 	  NULL, 0},
    124  1.1    ichiro };
    125  1.1    ichiro 
    126  1.1    ichiro static int
    127  1.1    ichiro wi_pci_enable(sc)
    128  1.1    ichiro 	struct wi_softc *sc;
    129  1.1    ichiro {
    130  1.1    ichiro 	struct wi_pci_softc *psc = (struct wi_pci_softc *)sc;
    131  1.1    ichiro 
    132  1.1    ichiro 	/* establish the interrupt. */
    133  1.1    ichiro 	sc->sc_ih = pci_intr_establish(psc->psc_pa->pa_pc,
    134  1.1    ichiro 					psc->psc_ih, IPL_NET, wi_intr, sc);
    135  1.1    ichiro 	if (sc->sc_ih == NULL) {
    136  1.1    ichiro 		printf("%s: couldn't establish interrupt\n",
    137  1.1    ichiro 		    sc->sc_dev.dv_xname);
    138  1.1    ichiro 		return (EIO);
    139  1.1    ichiro 	}
    140  1.1    ichiro 
    141  1.1    ichiro 	/* reset HFA3842 MAC core */
    142  1.1    ichiro 	wi_pci_reset(sc);
    143  1.1    ichiro 
    144  1.1    ichiro 	return (0);
    145  1.1    ichiro }
    146  1.1    ichiro 
    147  1.1    ichiro static void
    148  1.1    ichiro wi_pci_disable(sc)
    149  1.1    ichiro 	struct wi_softc *sc;
    150  1.1    ichiro {
    151  1.1    ichiro 	struct wi_pci_softc *psc = (struct wi_pci_softc *)sc;
    152  1.1    ichiro 
    153  1.1    ichiro 	pci_intr_disestablish(psc->psc_pa->pa_pc, sc->sc_ih);
    154  1.7  jdolecek }
    155  1.7  jdolecek 
    156  1.7  jdolecek static void
    157  1.7  jdolecek wi_pci_reset(sc)
    158  1.7  jdolecek 	struct wi_softc		*sc;
    159  1.7  jdolecek {
    160  1.7  jdolecek 	bus_space_write_2(sc->sc_iot, sc->sc_ioh,
    161  1.7  jdolecek 			  WI_PCI_COR, WI_PCI_SOFT_RESET);
    162  1.7  jdolecek 	DELAY(100*1000); /* 100 m sec */
    163  1.7  jdolecek 
    164  1.7  jdolecek 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, WI_PCI_COR, 0x0);
    165  1.7  jdolecek 	DELAY(100*1000); /* 100 m sec */
    166  1.7  jdolecek 
    167  1.7  jdolecek 	return;
    168  1.1    ichiro }
    169  1.1    ichiro 
    170  1.1    ichiro static const struct wi_pci_product *
    171  1.1    ichiro wi_pci_lookup(pa)
    172  1.1    ichiro 	struct pci_attach_args *pa;
    173  1.1    ichiro {
    174  1.1    ichiro 	const struct wi_pci_product *wpp;
    175  1.1    ichiro 
    176  1.3  augustss 	for (wpp = wi_pci_products; wpp->wpp_vendor != 0; wpp++) {
    177  1.1    ichiro 		if (PCI_VENDOR(pa->pa_id) == wpp->wpp_vendor &&
    178  1.1    ichiro 		    PCI_PRODUCT(pa->pa_id) == wpp->wpp_product)
    179  1.1    ichiro 			return (wpp);
    180  1.1    ichiro 	}
    181  1.1    ichiro 	return (NULL);
    182  1.1    ichiro }
    183  1.1    ichiro 
    184  1.1    ichiro static int
    185  1.1    ichiro wi_pci_match(parent, match, aux)
    186  1.1    ichiro 	struct device *parent;
    187  1.1    ichiro 	struct cfdata *match;
    188  1.1    ichiro 	void *aux;
    189  1.1    ichiro {
    190  1.1    ichiro 	struct pci_attach_args *pa = aux;
    191  1.1    ichiro 
    192  1.1    ichiro 	if (wi_pci_lookup(pa) != NULL)
    193  1.1    ichiro 		return (1);
    194  1.1    ichiro 	return (0);
    195  1.1    ichiro }
    196  1.1    ichiro 
    197  1.1    ichiro static void
    198  1.1    ichiro wi_pci_attach(parent, self, aux)
    199  1.1    ichiro 	struct device *parent, *self;
    200  1.1    ichiro 	void *aux;
    201  1.1    ichiro {
    202  1.1    ichiro 	struct wi_pci_softc *psc = (struct wi_pci_softc *)self;
    203  1.1    ichiro 	struct wi_softc *sc = &psc->psc_wi;
    204  1.1    ichiro 	struct pci_attach_args *pa = aux;
    205  1.1    ichiro 	pci_chipset_tag_t pc = pa->pa_pc;
    206  1.1    ichiro 	const char *intrstr;
    207  1.1    ichiro 	const struct wi_pci_product *wpp;
    208  1.1    ichiro 	pci_intr_handle_t ih;
    209  1.3  augustss 	bus_space_tag_t memt, iot;
    210  1.3  augustss 	bus_space_handle_t memh, ioh;
    211  1.1    ichiro 
    212  1.1    ichiro 	psc->psc_pa = pa;
    213  1.1    ichiro 
    214  1.5  augustss 	wpp = wi_pci_lookup(pa);
    215  1.5  augustss #ifdef DIAGNOSTIC
    216  1.5  augustss 	if (wpp == NULL) {
    217  1.5  augustss 		printf("\n");
    218  1.5  augustss 		panic("wi_pci_attach: impossible");
    219  1.5  augustss 	}
    220  1.5  augustss #endif
    221  1.5  augustss 
    222  1.3  augustss 	if (wpp->wpp_plx) {
    223  1.3  augustss 		/* Map memory and I/O registers. */
    224  1.3  augustss 		if (pci_mapreg_map(pa, WI_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0,
    225  1.3  augustss 		    &memt, &memh, NULL, NULL) != 0) {
    226  1.3  augustss 			printf(": can't map mem space\n");
    227  1.3  augustss 			return;
    228  1.3  augustss 		}
    229  1.3  augustss 		if (pci_mapreg_map(pa, WI_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0,
    230  1.3  augustss 		    &iot, &ioh, NULL, NULL) != 0) {
    231  1.3  augustss 			printf(": can't map I/O space\n");
    232  1.3  augustss 			return;
    233  1.3  augustss 		}
    234  1.3  augustss 	} else {
    235  1.3  augustss 		if (pci_mapreg_map(pa, WI_PCI_CBMA,
    236  1.3  augustss 		    PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT,
    237  1.3  augustss 		    0, &iot, &ioh, NULL, NULL) != 0) {
    238  1.3  augustss 			printf(": can't map mem space\n");
    239  1.3  augustss 			return;
    240  1.3  augustss 		}
    241  1.3  augustss 
    242  1.3  augustss 		memt = iot;
    243  1.3  augustss 		memh = ioh;
    244  1.3  augustss 		sc->sc_pci = 1;
    245  1.1    ichiro 	}
    246  1.1    ichiro 
    247  1.3  augustss 	if (wpp->wpp_name != NULL) {
    248  1.3  augustss 		printf(": %s Wireless Lan\n", wpp->wpp_name);
    249  1.3  augustss 	} else {
    250  1.3  augustss 		char devinfo[256];
    251  1.3  augustss 
    252  1.3  augustss 		pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
    253  1.3  augustss 		printf(": %s (rev. 0x%02x)\n", devinfo,
    254  1.3  augustss 		       PCI_REVISION(pa->pa_class));
    255  1.3  augustss 	}
    256  1.1    ichiro 
    257  1.1    ichiro 	sc->sc_enabled = 1;
    258  1.1    ichiro 	sc->sc_enable = wi_pci_enable;
    259  1.1    ichiro 	sc->sc_disable = wi_pci_disable;
    260  1.1    ichiro 
    261  1.1    ichiro 	/* Enable the card. */
    262  1.1    ichiro 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
    263  1.1    ichiro 		pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
    264  1.1    ichiro 		PCI_COMMAND_MASTER_ENABLE);
    265  1.1    ichiro 
    266  1.3  augustss 	sc->sc_iot = iot;
    267  1.3  augustss 	sc->sc_ioh = ioh;
    268  1.3  augustss 	/* Make sure interrupts are disabled. */
    269  1.3  augustss 	CSR_WRITE_2(sc, WI_INT_EN, 0);
    270  1.3  augustss 	CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
    271  1.1    ichiro 
    272  1.1    ichiro 	/* Map and establish the interrupt. */
    273  1.1    ichiro 	if (pci_intr_map(pa, &ih)) {
    274  1.1    ichiro 		printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
    275  1.1    ichiro 		return;
    276  1.1    ichiro 	}
    277  1.1    ichiro 	intrstr = pci_intr_string(pc, ih);
    278  1.1    ichiro 
    279  1.1    ichiro 	psc->psc_ih = ih;
    280  1.1    ichiro 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, wi_intr, sc);
    281  1.1    ichiro 	if (sc->sc_ih == NULL) {
    282  1.1    ichiro 		printf("%s: couldn't establish interrupt",
    283  1.1    ichiro 		    sc->sc_dev.dv_xname);
    284  1.1    ichiro 		if (intrstr != NULL)
    285  1.1    ichiro 			printf(" at %s", intrstr);
    286  1.1    ichiro 		printf("\n");
    287  1.1    ichiro 		return;
    288  1.1    ichiro 	}
    289  1.1    ichiro 
    290  1.1    ichiro 	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
    291  1.1    ichiro 
    292  1.3  augustss 	if (wpp->wpp_plx) {
    293  1.3  augustss 		/*
    294  1.3  augustss 		 * Setup the PLX chip for level interrupts and config index 1
    295  1.3  augustss 		 * XXX - should really reset the PLX chip too.
    296  1.3  augustss 		 */
    297  1.3  augustss 		bus_space_write_1(memt, memh,
    298  1.3  augustss 		    WI_PLX_COR_OFFSET, WI_PLX_COR_VALUE);
    299  1.3  augustss 	} else {
    300  1.3  augustss 		/* reset HFA3842 MAC core */
    301  1.3  augustss 		wi_pci_reset(sc);
    302  1.3  augustss 	}
    303  1.1    ichiro 
    304  1.3  augustss 	printf("%s:", sc->sc_dev.dv_xname);
    305  1.1    ichiro 	sc->sc_ifp = &sc->sc_ethercom.ec_if;
    306  1.1    ichiro 	if (wi_attach(sc) != 0) {
    307  1.6  jdolecek 		printf("%s: failed to attach controller\n",
    308  1.6  jdolecek 			sc->sc_dev.dv_xname);
    309  1.1    ichiro 		pci_intr_disestablish(pa->pa_pc, sc->sc_ih);
    310  1.1    ichiro 		return;
    311  1.1    ichiro 	}
    312  1.1    ichiro 
    313  1.1    ichiro 	/* Add a suspend hook to restore PCI config state */
    314  1.1    ichiro 	psc->sc_powerhook = powerhook_establish(wi_pci_powerhook, psc);
    315  1.1    ichiro 	if (psc->sc_powerhook == NULL)
    316  1.1    ichiro 		printf ("%s: WARNING: unable to establish pci power hook\n",
    317  1.1    ichiro 		        sc->sc_dev.dv_xname);
    318  1.1    ichiro }
    319  1.1    ichiro 
    320  1.1    ichiro static void
    321  1.1    ichiro wi_pci_powerhook(why, arg)
    322  1.1    ichiro 	int why;
    323  1.1    ichiro 	void *arg;
    324  1.1    ichiro {
    325  1.1    ichiro 	struct wi_pci_softc *psc = arg;
    326  1.1    ichiro 	struct wi_softc *sc = &psc->psc_wi;
    327  1.1    ichiro 
    328  1.1    ichiro 	wi_power(sc, why);
    329  1.1    ichiro }
    330