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siisata_cardbus.c revision 1.8
      1 /* $NetBSD: siisata_cardbus.c,v 1.8 2010/02/25 21:18:35 dyoung Exp $ */
      2 /* Id: siisata_pci.c,v 1.11 2008/05/21 16:20:11 jakllsch Exp  */
      3 
      4 /*
      5  * Copyright (c) 2006 Manuel Bouyer.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  *
     27  */
     28 
     29 /*
     30  * Copyright (c) 2007, 2008 Jonathan A. Kollasch.
     31  * All rights reserved.
     32  *
     33  * Redistribution and use in source and binary forms, with or without
     34  * modification, are permitted provided that the following conditions
     35  * are met:
     36  * 1. Redistributions of source code must retain the above copyright
     37  *    notice, this list of conditions and the following disclaimer.
     38  * 2. Redistributions in binary form must reproduce the above copyright
     39  *    notice, this list of conditions and the following disclaimer in the
     40  *    documentation and/or other materials provided with the distribution.
     41  *
     42  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     43  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     44  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     45  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     46  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     47  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     48  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     49  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     50  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     51  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     52  */
     53 
     54 #include <sys/cdefs.h>
     55 __KERNEL_RCSID(0, "$NetBSD: siisata_cardbus.c,v 1.8 2010/02/25 21:18:35 dyoung Exp $");
     56 
     57 #include <sys/types.h>
     58 #include <sys/malloc.h>
     59 #include <sys/param.h>
     60 #include <sys/kernel.h>
     61 #include <sys/systm.h>
     62 
     63 #include <uvm/uvm_extern.h>
     64 
     65 #include <dev/cardbus/cardbusvar.h>
     66 #include <dev/pci/pcidevs.h>
     67 #include <dev/ic/siisatavar.h>
     68 
     69 #define cardbus_devinfo		pci_devinfo
     70 
     71 struct siisata_cardbus_softc {
     72 	struct siisata_softc si_sc;
     73 	cardbus_chipset_tag_t sc_cc;
     74 	cardbus_function_tag_t sc_cf;
     75 	cardbus_devfunc_t sc_ct;
     76 	pcitag_t sc_tag;
     77 
     78 	bus_size_t sc_grsize;
     79 	bus_size_t sc_prsize;
     80 	void *sc_ih;
     81 };
     82 
     83 static int siisata_cardbus_match(device_t, cfdata_t, void *);
     84 static void siisata_cardbus_attach(device_t, device_t, void *);
     85 static int siisata_cardbus_detach(device_t, int);
     86 static bool siisata_cardbus_resume(device_t, const pmf_qual_t *);
     87 
     88 static const struct siisata_cardbus_product {
     89 	pci_vendor_id_t scp_vendor;
     90 	pci_product_id_t scp_product;
     91 	int scp_ports;
     92 	int scp_chip;
     93 
     94 } siisata_cardbus_products[] = {
     95 	{
     96 		PCI_VENDOR_CMDTECH, PCI_PRODUCT_CMDTECH_3124,
     97 		4, 3124
     98 	},
     99 	{
    100 		0, 0,
    101 		0, 0
    102 	},
    103 };
    104 
    105 CFATTACH_DECL_NEW(siisata_cardbus, sizeof(struct siisata_cardbus_softc),
    106     siisata_cardbus_match, siisata_cardbus_attach, siisata_cardbus_detach,
    107     NULL);
    108 
    109 static const struct siisata_cardbus_product *
    110 siisata_cardbus_lookup(const struct cardbus_attach_args *ca)
    111 {
    112 	const struct siisata_cardbus_product *scp;
    113 
    114 	for (scp = siisata_cardbus_products; scp->scp_ports > 0; scp++) {
    115 		if (CARDBUS_VENDOR(ca->ca_id) == scp->scp_vendor &&
    116 		    CARDBUS_PRODUCT(ca->ca_id) == scp->scp_product)
    117 			return scp;
    118 	}
    119 	return NULL;
    120 }
    121 
    122 static int
    123 siisata_cardbus_match(device_t parent, cfdata_t match, void *aux)
    124 {
    125 	struct cardbus_attach_args *ca = aux;
    126 
    127 	if (siisata_cardbus_lookup(ca) != NULL)
    128 		return 3;
    129 
    130 	return 0;
    131 }
    132 
    133 static void
    134 siisata_cardbus_attach(device_t parent, device_t self, void *aux)
    135 {
    136 	struct cardbus_attach_args *ca = aux;
    137 	struct cardbus_softc *cbsc = device_private(parent);
    138 	struct siisata_cardbus_softc *csc = device_private(self);
    139 	struct siisata_softc *sc = &csc->si_sc;
    140 	cardbus_devfunc_t ct = ca->ca_ct;
    141 	cardbus_chipset_tag_t cc = ct->ct_cc;
    142 	cardbus_function_tag_t cf = ct->ct_cf;
    143 	pcireg_t csr;
    144 	const struct siisata_cardbus_product *scp;
    145 	bus_space_tag_t memt;
    146 	bus_space_handle_t memh;
    147 	bus_addr_t base;
    148 	bus_size_t grsize, prsize;
    149 	uint32_t gcreg;
    150 	char devinfo[256];
    151 
    152 	sc->sc_atac.atac_dev = self;
    153 
    154 	csc->sc_cc = cc;
    155 	csc->sc_cf = cf;
    156 	csc->sc_ct = ct;
    157 	csc->sc_tag = ca->ca_tag;
    158 
    159 	cardbus_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo));
    160 	aprint_naive(": SATA-II HBA\n");
    161 	aprint_normal(": %s\n", devinfo);
    162 
    163 	/*
    164 	 * XXXX
    165 	 * Our BAR0/BAR1 type is 64bit Memory.  Cardbus_mapreg_map() don't
    166 	 * support 64bit Memory.  We map ourself...
    167 	 */
    168 	/* map bar0 */
    169 	{
    170 #define SIISATA_BAR0_SIZE	128
    171 		grsize = SIISATA_BAR0_SIZE;
    172 		csr =
    173 		    cardbus_conf_read(cc, cf, ca->ca_tag, SIISATA_CARDBUS_BAR0);
    174 		base = PCI_MAPREG_MEM_ADDR(csr);
    175 		memt = cbsc->sc_memt;
    176 		if ((*cf->cardbus_space_alloc)(cc, cbsc->sc_rbus_memt, base,
    177 		    grsize, grsize - 1, grsize, 0, &base, &memh)) {
    178 			aprint_error(
    179 			    "%s: unable to map device global registers\n",
    180 			    SIISATANAME(sc));
    181 			return;
    182 		}
    183 		cardbus_conf_write(cc, cf, ca->ca_tag, SIISATA_CARDBUS_BAR0,
    184 		    base);
    185 	}
    186 	sc->sc_grt = memt;
    187 	sc->sc_grh = memh;
    188 	csc->sc_grsize = grsize;
    189 
    190 	/* map bar1 */
    191 	{
    192 #define SIISATA_BAR1_SIZE	(32 * 1024)
    193 		prsize = SIISATA_BAR1_SIZE;
    194 		base = PCI_MAPREG_MEM_ADDR(cardbus_conf_read(cc, cf, ca->ca_tag,
    195 		    SIISATA_CARDBUS_BAR1));
    196 		memt = cbsc->sc_memt;
    197 		if ((*cf->cardbus_space_alloc)(cc, cbsc->sc_rbus_memt, base,
    198 		    prsize, prsize - 1, prsize, 0, &base, &memh)) {
    199 			cardbus_conf_write(cc, cf, ca->ca_tag,
    200 			    SIISATA_CARDBUS_BAR0, 0);
    201 			(*cf->cardbus_space_free)(cc, cbsc->sc_rbus_memt,
    202 			    sc->sc_grh, grsize);
    203 			aprint_error(
    204 			    "%s: unable to map device port registers\n",
    205 			    SIISATANAME(sc));
    206 			return;
    207 		}
    208 		cardbus_conf_write(cc, cf, ca->ca_tag, SIISATA_CARDBUS_BAR1,
    209 		    base);
    210 	}
    211 	sc->sc_prt = memt;
    212 	sc->sc_prh = memh;
    213 	csc->sc_prsize = prsize;
    214 
    215 	sc->sc_dmat = ca->ca_dmat;
    216 
    217 	/* map interrupt */
    218 	csc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, IPL_BIO,
    219 	    siisata_intr, sc);
    220 	if (csc->sc_ih == NULL) {
    221 		cardbus_conf_write(cc, cf, ca->ca_tag, SIISATA_CARDBUS_BAR0, 0);
    222 		(*cf->cardbus_space_free)(cc, cbsc->sc_rbus_memt, sc->sc_grh,
    223 		    grsize);
    224 		cardbus_conf_write(cc, cf, ca->ca_tag, SIISATA_CARDBUS_BAR1, 0);
    225 		(*cf->cardbus_space_free)(cc, cbsc->sc_rbus_memt, sc->sc_prh,
    226 		    prsize);
    227 		aprint_error("%s: couldn't establish interrupt\n",
    228 		    SIISATANAME(sc));
    229 		return;
    230 	}
    231 
    232 	/* fill in number of ports on this device */
    233 	scp = siisata_cardbus_lookup(ca);
    234 	if (scp != NULL)
    235 		sc->sc_atac.atac_nchannels = scp->scp_ports;
    236 	else
    237 		/* _match() should prevent us from getting here */
    238 		panic("siisata: the universe might be falling apart!\n");
    239 
    240 	/* enable bus mastering in case the firmware didn't */
    241 	csr = cardbus_conf_read(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG);
    242 	csr |= CARDBUS_COMMAND_MASTER_ENABLE;
    243 	csr |= CARDBUS_COMMAND_MEM_ENABLE;
    244 	cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG, csr);
    245 
    246 	gcreg = GRREAD(sc, GR_GC);
    247 
    248 	/* CardBus supports only 32-bit 33MHz */
    249 	KASSERT(!(gcreg &
    250 	    (GR_GC_REQ64|GR_GC_DEVSEL|GR_GC_STOP|GR_GC_TRDY|GR_GC_M66EN)));
    251 
    252 	aprint_normal("%s: SiI%d on 32-bit, 33MHz PCI (CardBus).",
    253 	    SIISATANAME(sc), scp->scp_chip);
    254 	if (gcreg & GR_GC_3GBPS)
    255 		aprint_normal(" 3.0Gb/s capable.\n");
    256 	else
    257 		aprint_normal("\n");
    258 
    259 	siisata_attach(sc);
    260 
    261 	if (!pmf_device_register(self, NULL, siisata_cardbus_resume))
    262 		aprint_error_dev(self, "couldn't establish power handler\n");
    263 }
    264 
    265 static int
    266 siisata_cardbus_detach(device_t self, int flags)
    267 {
    268 	struct cardbus_softc *cbsc = device_private(device_parent(self));
    269 	struct siisata_cardbus_softc *csc = device_private(self);
    270 	struct siisata_softc *sc = &csc->si_sc;
    271 	struct cardbus_devfunc *ct = csc->sc_ct;
    272 	cardbus_chipset_tag_t cc = ct->ct_cc;
    273 	cardbus_function_tag_t cf = ct->ct_cf;
    274 	pcitag_t ctag = csc->sc_tag;
    275 	int rv;
    276 
    277 	rv = siisata_detach(sc, flags);
    278 	if (rv)
    279 		return (rv);
    280 	if (csc->sc_ih != NULL) {
    281 		cardbus_intr_disestablish(csc->sc_cc, csc->sc_cf, csc->sc_ih);
    282 		csc->sc_ih = NULL;
    283 	}
    284 	if (csc->sc_grsize) {
    285 		cardbus_conf_write(cc, cf, ctag, SIISATA_CARDBUS_BAR0, 0);
    286 		(*cf->cardbus_space_free)(cc, cbsc->sc_rbus_memt, sc->sc_grh,
    287 		    csc->sc_grsize);
    288 		csc->sc_grsize = 0;
    289 	}
    290 	if (csc->sc_prsize) {
    291 		cardbus_conf_write(cc, cf, ctag, SIISATA_CARDBUS_BAR1, 0);
    292 		(*cf->cardbus_space_free)(cc, cbsc->sc_rbus_memt, sc->sc_prh,
    293 		    csc->sc_prsize);
    294 		csc->sc_prsize = 0;
    295 	}
    296 	return 0;
    297 }
    298 
    299 static bool
    300 siisata_cardbus_resume(device_t dv, const pmf_qual_t *qual)
    301 {
    302 	struct siisata_cardbus_softc *csc = device_private(dv);
    303 	struct siisata_softc *sc = &csc->si_sc;
    304 	int s;
    305 
    306 	s = splbio();
    307 	siisata_resume(sc);
    308 	splx(s);
    309 
    310 	return true;
    311 }
    312