Add tpm(4) driver for Trusted Platform Module.

You may want to look at http://bsssd.sourceforge.net/ .

Submitted by: Hans-Joerg Hoexer <Hans-Joerg_Hoexer@genua.de>

1 files changed, 96 insertions, 0 deletions

diff --git a/sys/dev/tpm/tpm_isa.c b/sys/dev/tpm/tpm_isa.c
new file mode 100644
index 000000000000..861ca23cf9e5
--- /dev/null
+++ b/sys/dev/tpm/tpm_isa.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2008, 2009 Michael Shalayeff
+ * Copyright (c) 2009, 2010 Hans-Joerg Hoexer
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/proc.h>
+
+#ifdef __FreeBSD__
+#include <sys/module.h>
+#include <sys/conf.h>
+#include <sys/uio.h>
+#include <sys/bus.h>
+
+#include <machine/bus.h>
+#include <sys/rman.h>
+#include <machine/resource.h>
+
+#include <machine/md_var.h>
+
+#include <isa/isareg.h>
+#include <isa/isavar.h>
+#else
+#include <sys/device.h>
+
+#include <machine/cpu.h>
+#include <machine/bus.h>
+#include <machine/intr.h>
+#include <machine/conf.h>
+
+#include <dev/isa/isareg.h>
+#include <dev/isa/isavar.h>
+#endif
+#include "tpmvar.h"
+
+static int
+tpm_isa_probe(device_t dev)
+{
+	bus_space_tag_t iot;
+	bus_space_handle_t ioh;
+	struct resource *mem_res;
+	int rv, mem_rid;
+
+	mem_rid = 0;
+	mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &mem_rid,
+	    RF_ACTIVE);
+	if (mem_res == NULL)
+		return (ENXIO);
+	iot = rman_get_bustag(mem_res);
+	ioh = rman_get_bushandle(mem_res);
+
+	if ((rv = tpm_tis12_probe(iot, ioh)))
+		device_set_desc(dev, "Trusted Platform Module");
+
+	bus_release_resource(dev, SYS_RES_MEMORY, mem_rid, mem_res);
+	return rv ? 0 : ENXIO;
+}
+
+static device_method_t tpm_methods[] = {
+#if 0
+	DEVMETHOD(device_identify,	tpm_identify),
+#endif
+	DEVMETHOD(device_probe,		tpm_isa_probe),
+	DEVMETHOD(device_attach,	tpm_attach),
+	DEVMETHOD(device_detach,	tpm_detach),
+	DEVMETHOD(device_suspend,	tpm_suspend),
+	DEVMETHOD(device_resume,	tpm_resume),
+	{ 0, 0 }
+};
+
+static driver_t tpm_driver = {
+	"tpm", tpm_methods, sizeof(struct tpm_softc),
+};
+
+static devclass_t tpm_devclass;
+
+DRIVER_MODULE(tpm, isa, tpm_driver, tpm_devclass, 0, 0);