1 /* 2 * Copyright (c) 2008, 2009 Michael Shalayeff 3 * Copyright (c) 2009, 2010 Hans-Joerg Hoexer 4 * All rights reserved. 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN 15 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 16 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/cdefs.h> 20 __FBSDID("$FreeBSD$"); 21 22 #include <sys/param.h> 23 #include <sys/systm.h> 24 #include <sys/kernel.h> 25 #include <sys/malloc.h> 26 #include <sys/proc.h> 27 28 #ifdef __FreeBSD__ 29 #include <sys/module.h> 30 #include <sys/conf.h> 31 #include <sys/uio.h> 32 #include <sys/bus.h> 33 34 #include <machine/bus.h> 35 #include <sys/rman.h> 36 #include <machine/resource.h> 37 38 #include <machine/md_var.h> 39 40 #include <isa/isareg.h> 41 #include <isa/isavar.h> 42 #else 43 #include <sys/device.h> 44 45 #include <machine/cpu.h> 46 #include <machine/bus.h> 47 #include <machine/intr.h> 48 #include <machine/conf.h> 49 50 #include <dev/isa/isareg.h> 51 #include <dev/isa/isavar.h> 52 #endif 53 #include "tpmvar.h" 54 55 static int 56 tpm_isa_probe(device_t dev) 57 { 58 bus_space_tag_t iot; 59 bus_space_handle_t ioh; 60 struct resource *mem_res; 61 int rv, mem_rid; 62 63 mem_rid = 0; 64 mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &mem_rid, 65 RF_ACTIVE); 66 if (mem_res == NULL) 67 return (ENXIO); 68 iot = rman_get_bustag(mem_res); 69 ioh = rman_get_bushandle(mem_res); 70 71 if ((rv = tpm_tis12_probe(iot, ioh))) 72 device_set_desc(dev, "Trusted Platform Module"); 73 74 bus_release_resource(dev, SYS_RES_MEMORY, mem_rid, mem_res); 75 return rv ? 0 : ENXIO; 76 } 77 78 static device_method_t tpm_methods[] = { 79 #if 0 80 DEVMETHOD(device_identify, tpm_identify), 81 #endif 82 DEVMETHOD(device_probe, tpm_isa_probe), 83 DEVMETHOD(device_attach, tpm_attach), 84 DEVMETHOD(device_detach, tpm_detach), 85 DEVMETHOD(device_suspend, tpm_suspend), 86 DEVMETHOD(device_resume, tpm_resume), 87 { 0, 0 } 88 }; 89 90 static driver_t tpm_driver = { 91 "tpm", tpm_methods, sizeof(struct tpm_softc), 92 }; 93 94 DRIVER_MODULE(tpm, isa, tpm_driver, 0, 0); 95