ahc_cardbus.c

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    1 /*      $NetBSD: ahc_cardbus.c,v 1.13 2004/01/19 23:15:36 jdolecek Exp $        */
    2 
    3 /*-
    4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
    9  * NASA Ames Research Center.
   10  *
   11  * Redistribution and use in source and binary forms, with or without
   12  * modification, are permitted provided that the following conditions
   13  * are met:
   14  * 1. Redistributions of source code must retain the above copyright
   15  *    notice, this list of conditions and the following disclaimer.
   16  * 2. Redistributions in binary form must reproduce the above copyright
   17  *    notice, this list of conditions and the following disclaimer in the
   18  *    documentation and/or other materials provided with the distribution.
   19  * 3. All advertising materials mentioning features or use of this software
   20  *    must display the following acknowledgement:
   21  *      This product includes software developed by the NetBSD
   22  *      Foundation, Inc. and its contributors.
   23  * 4. Neither the name of The NetBSD Foundation nor the names of its
   24  *    contributors may be used to endorse or promote products derived
   25  *    from this software without specific prior written permission.
   26  *
   27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   37  * POSSIBILITY OF SUCH DAMAGE.
   38  */
   39 
   40 /*
   41  * CardBus front-end for the Adaptec AIC-7xxx family of SCSI controllers.
   42  *
   43  * TODO:
   44  *      - power management
   45  */
   46 
   47 #include <sys/cdefs.h>
   48 __KERNEL_RCSID(0, "$NetBSD: ahc_cardbus.c,v 1.13 2004/01/19 23:15:36 jdolecek Exp $");
   49 
   50 #include <sys/param.h>
   51 #include <sys/systm.h>
   52 #include <sys/malloc.h>
   53 #include <sys/kernel.h>
   54 #include <sys/queue.h>
   55 #include <sys/device.h>
   56 
   57 #include <machine/bus.h> 
   58 #include <machine/intr.h>
   59 
   60 #include <dev/scsipi/scsi_all.h> 
   61 #include <dev/scsipi/scsipi_all.h>
   62 #include <dev/scsipi/scsiconf.h>
   63 
   64 #include <dev/pci/pcireg.h>
   65 
   66 #include <dev/cardbus/cardbusvar.h>
   67 #include <dev/cardbus/cardbusdevs.h>
   68 
   69 #include <dev/ic/aic7xxx_osm.h>
   70 #include <dev/ic/aic7xxx_inline.h>
   71 
   72 
   73 #define AHC_CARDBUS_IOBA        0x10
   74 #define AHC_CARDBUS_MMBA        0x14
   75 
   76 struct ahc_cardbus_softc {
   77         struct ahc_softc sc_ahc;        /* real AHC */
   78 
   79         /* CardBus-specific goo. */
   80         cardbus_devfunc_t sc_ct;        /* our CardBus devfuncs */
   81         int     sc_intrline;            /* our interrupt line */
   82         cardbustag_t sc_tag;
   83 
   84         int     sc_cbenable;            /* what CardBus access type to enable */
   85         int     sc_csr;                 /* CSR bits */
   86         bus_size_t sc_size;
   87 };
   88 
   89 int     ahc_cardbus_match __P((struct device *, struct cfdata *, void *));
   90 void    ahc_cardbus_attach __P((struct device *, struct device *, void *));
   91 int     ahc_cardbus_detach __P((struct device *, int));
   92 int     ahc_activate(struct device *self, enum devact act);
   93 
   94 CFATTACH_DECL(ahc_cardbus, sizeof(struct ahc_cardbus_softc),
   95     ahc_cardbus_match, ahc_cardbus_attach, ahc_cardbus_detach, ahc_activate);
   96 
   97 int
   98 ahc_cardbus_match(parent, match, aux)
   99         struct device *parent;
  100         struct cfdata *match;
  101         void *aux;
  102 {
  103         struct cardbus_attach_args *ca = aux;
  104 
  105         if (CARDBUS_VENDOR(ca->ca_id) == CARDBUS_VENDOR_ADP &&
  106             CARDBUS_PRODUCT(ca->ca_id) == CARDBUS_PRODUCT_ADP_1480)
  107                 return (1);
  108 
  109         return (0);
  110 }
  111 
  112 void
  113 ahc_cardbus_attach(parent, self, aux)
  114         struct device *parent, *self;
  115         void *aux;
  116 {
  117         struct cardbus_attach_args *ca = aux;
  118         struct ahc_cardbus_softc *csc = (void *) self;
  119         struct ahc_softc *ahc = &csc->sc_ahc;
  120         cardbus_devfunc_t ct = ca->ca_ct;
  121         cardbus_chipset_tag_t cc = ct->ct_cc;
  122         cardbus_function_tag_t cf = ct->ct_cf;
  123         bus_space_tag_t bst;
  124         bus_space_handle_t bsh;
  125         pcireg_t reg;
  126         u_int sxfrctl1 = 0;
  127         u_char sblkctl;
  128 
  129 
  130         csc->sc_ct = ct;
  131         csc->sc_tag = ca->ca_tag;
  132         csc->sc_intrline = ca->ca_intrline;
  133 
  134         printf(": Adaptec ADP-1480 SCSI\n");
  135 
  136         /*
  137          * Map the device.
  138          */
  139         csc->sc_csr = PCI_COMMAND_MASTER_ENABLE;
  140         if (Cardbus_mapreg_map(csc->sc_ct, AHC_CARDBUS_MMBA,
  141             PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
  142             &bst, &bsh, NULL, &csc->sc_size) == 0) {
  143                 csc->sc_cbenable = CARDBUS_MEM_ENABLE;
  144                 csc->sc_csr |= PCI_COMMAND_MEM_ENABLE;
  145         } else if (Cardbus_mapreg_map(csc->sc_ct, AHC_CARDBUS_IOBA,
  146             PCI_MAPREG_TYPE_IO, 0, &bst, &bsh, NULL, &csc->sc_size) == 0) {
  147                 csc->sc_cbenable = CARDBUS_IO_ENABLE;
  148                 csc->sc_csr |= PCI_COMMAND_IO_ENABLE;
  149         } else {
  150                 printf("%s: unable to map device registers\n",
  151                     ahc_name(ahc));
  152                 return;
  153         }
  154 
  155         /* Make sure the right access type is on the CardBus bridge. */
  156         (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cbenable);
  157         (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
  158 
  159         /* Enable the appropriate bits in the PCI CSR. */
  160         reg = cardbus_conf_read(cc, cf, ca->ca_tag, PCI_COMMAND_STATUS_REG);
  161         reg &= ~(PCI_COMMAND_IO_ENABLE|PCI_COMMAND_MEM_ENABLE);
  162         reg |= csc->sc_csr;
  163         cardbus_conf_write(cc, cf, ca->ca_tag, PCI_COMMAND_STATUS_REG, reg);
  164 
  165         /*
  166          * Make sure the latency timer is set to some reasonable
  167          * value.
  168          */
  169         reg = cardbus_conf_read(cc, cf, ca->ca_tag, PCI_BHLC_REG);
  170         if (PCI_LATTIMER(reg) < 0x20) {
  171                 reg &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT);
  172                 reg |= (0x20 << PCI_LATTIMER_SHIFT);
  173                 cardbus_conf_write(cc, cf, ca->ca_tag, PCI_BHLC_REG, reg);
  174         }
  175 
  176         ahc_set_name(ahc, ahc->sc_dev.dv_xname);
  177 
  178         ahc->parent_dmat = ca->ca_dmat;
  179         ahc->tag = bst;
  180         ahc->bsh = bsh;
  181 
  182         /*
  183          * ADP-1480 is always an AIC-7860.
  184          */
  185         ahc->chip = AHC_AIC7860 | AHC_PCI;
  186         ahc->features = AHC_AIC7860_FE|AHC_REMOVABLE;
  187         ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
  188         if (PCI_REVISION(ca->ca_class) >= 1)
  189                 ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
  190 
  191         if (ahc_softc_init(ahc) != 0)
  192                 return;
  193 
  194         /*
  195          * On all CardBus adapters, we allow SCB paging.
  196          */
  197         ahc->flags = AHC_PAGESCBS;
  198 
  199         ahc->channel = 'A';
  200 
  201         ahc_intr_enable(ahc, FALSE);
  202 
  203         ahc_reset(ahc);
  204 
  205         /*
  206          * Establish the interrupt.
  207          */
  208         ahc->ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, IPL_BIO,
  209             ahc_intr, ahc);
  210         if (ahc->ih == NULL) {
  211                 printf("%s: unable to establish interrupt at %d\n",
  212                     ahc_name(ahc), ca->ca_intrline);
  213                 return;
  214         }
  215         printf("%s: interrupting at %d\n", ahc_name(ahc), ca->ca_intrline);
  216 
  217         ahc->seep_config = malloc(sizeof(*ahc->seep_config),
  218                                   M_DEVBUF, M_NOWAIT);
  219         if (ahc->seep_config == NULL)
  220                 return;
  221 
  222         ahc_check_extport(ahc, &sxfrctl1);
  223         /*
  224          * Take the LED out of diagnostic mode.
  225          */
  226         sblkctl = ahc_inb(ahc, SBLKCTL);
  227         ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
  228 
  229         /*
  230          * I don't know where this is set in the SEEPROM or by the
  231          * BIOS, so we default to 100%.
  232          */
  233         ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100);
  234 
  235         if (ahc->flags & AHC_USEDEFAULTS) {
  236                 /*
  237                  * We can't "use defaults", as we have no way
  238                  * of knowing what default settings hould be.
  239                  */
  240                 printf("%s: CardBus device requires an SEEPROM\n",
  241                     ahc_name(ahc));
  242                 return;
  243         }
  244 
  245         printf("%s: aic7860", ahc_name(ahc));
  246 
  247         /*
  248          * Record our termination setting for the
  249          * generic initialization routine.
  250          */
  251         if ((sxfrctl1 & STPWEN) != 0)
  252                 ahc->flags |= AHC_TERM_ENB_A;
  253 
  254         if (ahc_init(ahc)) {
  255                 ahc_free(ahc);
  256                 return;
  257         }
  258 
  259         ahc_attach(ahc);
  260 }
  261 
  262 int
  263 ahc_cardbus_detach(self, flags)
  264         struct device *self;
  265         int flags;
  266 {
  267         struct ahc_cardbus_softc *csc = (void*)self;
  268         struct ahc_softc *ahc = &csc->sc_ahc;
  269 
  270         int rv;
  271 
  272         rv = ahc_detach((void *)ahc, flags);
  273         if (rv)
  274                 return rv;
  275 
  276         if (ahc->ih) {
  277                 cardbus_intr_disestablish(csc->sc_ct->ct_cc,
  278                                           csc->sc_ct->ct_cf, ahc->ih);
  279                 ahc->ih = 0;
  280         }
  281 
  282         if (csc->sc_cbenable) {
  283                 if (csc->sc_cbenable == CARDBUS_MEM_ENABLE)
  284                         Cardbus_mapreg_unmap(csc->sc_ct, AHC_CARDBUS_MMBA,
  285                                 ahc->tag, ahc->bsh, csc->sc_size);
  286                 else if (csc->sc_cbenable == CARDBUS_IO_ENABLE)
  287                         Cardbus_mapreg_unmap(csc->sc_ct, AHC_CARDBUS_IOBA,
  288                                 ahc->tag, ahc->bsh, csc->sc_size);
  289         csc->sc_cbenable = 0;
  290         }
  291 
  292         return (0);
  293 }
  294 
  295 
  296 int
  297 ahc_activate(struct device *self, enum devact act)
  298 {
  299         struct ahc_cardbus_softc *csc = (void*)self;
  300         struct ahc_softc *ahc = &csc->sc_ahc;
  301         int s, rv = 0;
  302 
  303         s = splhigh();
  304         switch (act) {
  305         case DVACT_ACTIVATE:
  306                 rv = EOPNOTSUPP;
  307                 break;
  308 
  309         case DVACT_DEACTIVATE:
  310                 if (ahc->sc_child != NULL)
  311                         rv = config_deactivate(ahc->sc_child);
  312                 break;
  313         }
  314         splx(s);
  315 
  316         return (rv);
  317 }
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FreeBSD/Linux Kernel Cross Reference sys/dev/cardbus/ahc_cardbus.c

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sys/dev/cardbus/ahc_cardbus.c
