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Diff for /src/sys/dev/acpi/tpm_acpi.c between version 1.3.6.1 and 1.3.6.2

version 1.3.6.1, 2012/01/22 20:25:25 version 1.3.6.2, 2012/04/17 00:07:28
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   /* $NetBSD$ */
   
   /*-
    * Copyright (c) 2012 The NetBSD Foundation, Inc.
    * All rights reserved.
    *
    * This code is derived from software contributed to The NetBSD Foundation
    * by Christos Zoulas.
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    * 1. Redistributions of source code must retain the above copyright
    *    notice, this list of conditions and the following disclaimer.
    * 2. Redistributions in binary form must reproduce the above copyright
    *    notice, this list of conditions and the following disclaimer in the
    *    documentation and/or other materials provided with the distribution.
    *
    * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
    * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
    * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
    * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    * POSSIBILITY OF SUCH DAMAGE.
    */
   /*
    * Copyright (c) 2008, 2009 Michael Shalayeff
    * Copyright (c) 2009, 2010 Hans-Jg Her
    * All rights reserved.
    *
    * Permission to use, copy, modify, and distribute this software for any
    * purpose with or without fee is hereby granted, provided that the above
    * copyright notice and this permission notice appear in all copies.
    *
    * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
    * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
    * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
    * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
    * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
    */
   
   /*
    * ACPI attachment for the Infineon SLD 9630 TT 1.1 and SLB 9635 TT 1.2
    * trusted platform module. See www.trustedcomputinggroup.org
    */
   
   #include <sys/cdefs.h>
   __KERNEL_RCSID(0, "$NetBSD$");
   
   #include <sys/param.h>
   #include <sys/device.h>
   #include <sys/systm.h>
   #include <sys/device.h>
   #include <sys/bus.h>
   #include <sys/pmf.h>
   
   #include <dev/ic/tpmreg.h>
   #include <dev/ic/tpmvar.h>
   
   #include <dev/acpi/acpireg.h>
   #include <dev/acpi/acpivar.h>
   
   #include <dev/isa/isavar.h>
   
   #define _COMPONENT          ACPI_RESOURCE_COMPONENT
   ACPI_MODULE_NAME            ("tpm_acpi")
   
   static int      tpm_acpi_match(device_t, cfdata_t, void *);
   static void     tpm_acpi_attach(device_t, device_t, void *);
   
   
   CFATTACH_DECL_NEW(tpm_acpi, sizeof(struct tpm_softc), tpm_acpi_match,
       tpm_acpi_attach, NULL, NULL);
   
   /*
    * Supported device IDs
    */
   
   static const char * const tpm_acpi_ids[] = {
           "IFX0101",
           "IFX0102",
           NULL
   };
   
   extern struct cfdriver tpm_cd;
   
   static int
   tpm_acpi_match(device_t parent, cfdata_t match, void *aux)
   {
           struct acpi_attach_args *aa = aux;
   
           if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
                   return 0;
   
           /* There can be only one. */
           if (tpm_cd.cd_devs && tpm_cd.cd_devs[0])
                   return 0;
   #ifdef notyet
           return acpi_match_hid(aa->aa_node->ad_devinfo, tpm_acpi_ids);
   #else
           return 0;
   #endif
   }
   
   static void
   tpm_acpi_attach(device_t parent, device_t self, void *aux)
   {
           struct tpm_softc *sc = device_private(self);
           struct acpi_attach_args *aa = aux;
           struct acpi_resources res;
           struct acpi_io *io;
           struct acpi_mem *mem;
           struct acpi_irq *irq;
           bus_addr_t base;
           bus_addr_t size;
           int rv, inum;
   
           sc->sc_dev = self;
   
           /* Parse our resources */
           rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS", &res,
               &acpi_resource_parse_ops_default);
   
           if (ACPI_FAILURE(rv)) {
                   aprint_error_dev(sc->sc_dev, "cannot parse resources %d\n", rv);
                   return;
           }
   
           io = acpi_res_io(&res, 0);
           if (io && tpm_legacy_probe(aa->aa_iot, io->ar_base)) {
                   sc->sc_bt = aa->aa_iot;
                   base = io->ar_base;
                   size = io->ar_length;
                   sc->sc_batm = aa->aa_iot;
                   sc->sc_init = tpm_legacy_init;
                   sc->sc_start = tpm_legacy_start;
                   sc->sc_read = tpm_legacy_read;
                   sc->sc_write = tpm_legacy_write;
                   sc->sc_end = tpm_legacy_end;
                   mem = NULL;
           } else {
                   mem = acpi_res_mem(&res, 0);
                   if (mem == NULL) {
                           aprint_error_dev(sc->sc_dev, "cannot find mem\n");
                           goto out;
                   }
   
                   if (mem->ar_length != TPM_SIZE) {
                           aprint_error_dev(sc->sc_dev,
                               "wrong size mem %u != %u\n",
                               mem->ar_length, TPM_SIZE);
                           goto out;
                   }
   
                   base = mem->ar_base;
                   size = mem->ar_length;
                   sc->sc_bt = aa->aa_memt;
                   sc->sc_init = tpm_tis12_init;
                   sc->sc_start = tpm_tis12_start;
                   sc->sc_read = tpm_tis12_read;
                   sc->sc_write = tpm_tis12_write;
                   sc->sc_end = tpm_tis12_end;
           }
   
           if (bus_space_map(sc->sc_bt, base, size, 0, &sc->sc_bh)) {
                   aprint_error_dev(sc->sc_dev, "cannot map registers\n");
                   goto out;
           }
   
           if (mem && !tpm_tis12_probe(sc->sc_bt, sc->sc_bh)) {
                   aprint_error_dev(sc->sc_dev, "1.2 probe failed\n");
                   goto out1;
           }
   
           irq = acpi_res_irq(&res, 0);
           if (irq == NULL)
                   inum = -1;
           else
                   inum = irq->ar_irq;
   
           if ((rv = (*sc->sc_init)(sc, inum, device_xname(sc->sc_dev))) != 0)
                   aprint_error_dev(sc->sc_dev, "cannot init device %d\n", rv);
                   goto out1;
   
           if (inum != -1 &&
               (sc->sc_ih = isa_intr_establish(aa->aa_ic, irq->ar_irq,
               IST_EDGE, IPL_TTY, tpm_intr, sc)) == NULL) {
                   aprint_error_dev(sc->sc_dev, "cannot establish interrupt\n");
                   goto out1;
           }
   
           if (!pmf_device_register(sc->sc_dev, tpm_suspend, tpm_resume))
                   aprint_error_dev(sc->sc_dev, "Cannot set power mgmt handler\n");
           return;
   out1:
           bus_space_unmap(sc->sc_bt, sc->sc_bh, size);
   out:
           acpi_resource_cleanup(&res);
   }
Legend:
Removed from v.1.3.6.1  
changed lines
  Added in v.1.3.6.2
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