A driver for the System Management Application Program

Interface (SMAPI) BIOS, which is present on some IBM
Thinkpad models (560, 600, 770 to name a few.)

The SMAPI BIOS provides access to System Information,
System Configuration, and Power Management.

1 files changed, 167 insertions, 0 deletions

diff --git a/sys/i386/bios/smapi.c b/sys/i386/bios/smapi.c
new file mode 100644
index 0000000..e2e96ad
--- /dev/null
+++ b/sys/i386/bios/smapi.c
@@ -0,0 +1,167 @@
+/*-
+ * Copyright (c) 2003 Matthew N. Dodd <winter@jurai.net>
+ * All rights reserved.
+ *
+ * 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 AUTHOR 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 AUTHOR 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+
+#include <sys/module.h>
+#include <sys/bus.h>
+#include <sys/conf.h>
+
+#include <machine/bus.h>
+#include <machine/resource.h>
+#include <sys/rman.h>
+
+#include <machine/smapi.h>
+#include <i386/smapi/smapi_var.h>
+
+u_long smapi32_offset;
+u_short smapi32_segment;
+#define	SMAPI32_SEGMENT	0x18
+
+devclass_t smapi_devclass;
+
+static d_open_t smapi_open;
+static d_close_t smapi_close;
+static d_ioctl_t smapi_ioctl;
+
+#define CDEV_MAJOR	183
+
+static struct cdevsw smapi_cdevsw = {
+	/* open */	smapi_open,
+	/* close */	smapi_close,
+	/* read */	noread,
+	/* write */	nowrite,
+	/* ioctl */	smapi_ioctl,
+	/* poll */	nopoll,
+	/* mmap */	nommap,
+	/* strategy */	nostrategy,
+	/* name */	"smapi",
+	/* maj */	CDEV_MAJOR,
+	/* dump */	nodump,
+	/* psize */	nopsize,
+	/* flags */	D_MEM,
+	/* kqfilter */	NULL,
+};
+
+static int
+smapi_open (dev, oflags, devtype, td)
+	dev_t		dev;
+	int		oflags;
+	int		devtype;
+	d_thread_t *	td;
+{
+
+	return (0);
+}
+
+static int
+smapi_close (dev, fflag, devtype, td)
+	dev_t		dev;
+	int		fflag;
+	int		devtype;
+	d_thread_t *	td;
+{
+
+	return (0);
+}
+
+static int
+smapi_ioctl (dev, cmd, data, fflag, td)
+	dev_t		dev;
+	u_long		cmd;
+	caddr_t		data;
+	int		fflag;
+	d_thread_t *	td;
+{
+	struct smapi_softc *sc;
+	int error;
+
+	error = 0;
+	sc = devclass_get_softc(smapi_devclass, minor(dev)); 
+        if (sc == NULL) {
+                error = ENXIO;
+                goto fail;
+        }
+
+	switch (cmd) {
+	case SMAPIOGHEADER:
+		bcopy((caddr_t)sc->header, data,
+				sizeof(struct smapi_bios_header)); 
+		error = 0;
+		break;
+	case SMAPIOCGFUNCTION:
+		smapi32_segment = SMAPI32_SEGMENT;
+		smapi32_offset = sc->smapi32_entry;
+		error = smapi32((struct smapi_bios_parameter *)data,
+				(struct smapi_bios_parameter *)data);
+		break;
+	default:
+		error = ENOTTY;
+	}
+
+fail:
+	return (error);
+}
+
+int
+smapi_attach (struct smapi_softc *sc)
+{
+	struct smapi_bios_parameter input_param;
+	struct smapi_bios_parameter output_param;
+	int retval;
+
+	sc->cdev = make_dev(&smapi_cdevsw,
+			device_get_unit(sc->dev),
+			UID_ROOT, GID_WHEEL, 0600,
+			"%s%d",
+			smapi_cdevsw.d_name,
+			device_get_unit(sc->dev));
+
+	bzero(&input_param, sizeof(struct smapi_bios_parameter));
+	bzero(&output_param, sizeof(struct smapi_bios_parameter));
+	smapi32_segment = SMAPI32_SEGMENT;
+	smapi32_offset = sc->smapi32_entry;
+	retval = smapi32(&output_param, &output_param);
+
+#if 0
+	retval = smapi32_new(sc->smapi32_entry, SMAPI32_SEGMENT,
+			     &output_param, &output_param);
+#endif
+
+	return (0);
+}
+
+int
+smapi_detach (struct smapi_softc *sc)
+{
+
+	destroy_dev(sc->cdev);
+	return (0);
+}