A driver for Intel Rapid Start Technology ACPI device.

Note that it is just for 'Advanced' configuration for Rapid start technology.

1 files changed, 133 insertions, 0 deletions

diff --git a/sys/dev/acpi_support/acpi_rapidstart.c b/sys/dev/acpi_support/acpi_rapidstart.c
new file mode 100644
index 0000000..2da93ec
--- /dev/null
+++ b/sys/dev/acpi_support/acpi_rapidstart.c
@@ -0,0 +1,133 @@
+/*-
+ * Copyright (c) 2013 Takanori Watanabe
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "opt_acpi.h"
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/bus.h>
+
+#include <contrib/dev/acpica/include/acpi.h>
+
+#include "acpi_if.h"
+#include <sys/module.h>
+#include <dev/acpica/acpivar.h>
+#include <sys/sysctl.h>
+static int sysctl_acpi_rapidstart_gen_handler(SYSCTL_HANDLER_ARGS);
+
+
+static struct acpi_rapidstart_name_list
+{
+	char *nodename;
+	char *getmethod;
+	char *setmethod;
+	char *comment;
+} acpi_rapidstart_oids[] ={
+	{"ffs","GFFS","SFFS","Flash Fast Store Flag"},
+	{"ftv","GFTV","SFTV","Time value"},
+	{NULL, NULL, NULL, NULL}
+};
+
+struct acpi_rapidstart_softc {
+	struct sysctl_ctx_list	*sysctl_ctx;
+	struct sysctl_oid	*sysctl_tree;
+
+};
+static char    *rapidstart_ids[] = {"INT3392", NULL};
+static int
+acpi_rapidstart_probe(device_t dev)
+{
+	if (acpi_disabled("rapidstart") ||
+	    ACPI_ID_PROBE(device_get_parent(dev), dev, rapidstart_ids) == NULL ||
+	    device_get_unit(dev) != 0)
+		return (ENXIO);
+
+	device_set_desc(dev, "Intel Rapid Start ACPI device");
+
+	return (0);
+	
+}
+
+static int
+acpi_rapidstart_attach(device_t dev)
+{
+	struct acpi_rapidstart_softc *sc;
+	int i;
+
+	sc = device_get_softc(dev);
+	
+	sc->sysctl_ctx = device_get_sysctl_ctx(dev);
+	sc->sysctl_tree = device_get_sysctl_tree(dev);
+	for (i = 0 ; acpi_rapidstart_oids[i].nodename != NULL; i++){
+		SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
+		    SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
+		    i, acpi_rapidstart_oids[i].nodename , CTLTYPE_INT |
+		    ((acpi_rapidstart_oids[i].setmethod)? CTLFLAG_RW: CTLFLAG_RD),
+		    dev, i, sysctl_acpi_rapidstart_gen_handler, "I",
+		    acpi_rapidstart_oids[i].comment);
+	}
+	return (0);
+}
+
+static int 
+sysctl_acpi_rapidstart_gen_handler(SYSCTL_HANDLER_ARGS)
+{
+	device_t	dev = arg1;
+	int 	function = oidp->oid_arg2;
+	int		error = 0, val;
+
+	acpi_GetInteger(acpi_get_handle(dev),
+	    acpi_rapidstart_oids[function].getmethod, &val);
+	error = sysctl_handle_int(oidp, &val, 0, req);
+	if (error || !req->newptr || !acpi_rapidstart_oids[function].setmethod)
+		return (error);
+	acpi_SetInteger(acpi_get_handle(dev),
+	    acpi_rapidstart_oids[function].setmethod, val);
+	return (0);
+}
+
+static device_method_t acpi_rapidstart_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe, acpi_rapidstart_probe),
+	DEVMETHOD(device_attach, acpi_rapidstart_attach),
+
+	DEVMETHOD_END
+};
+
+static driver_t	acpi_rapidstart_driver = {
+	"acpi_rapidstart",
+	acpi_rapidstart_methods,
+	sizeof(struct acpi_rapidstart_softc),
+};
+
+static devclass_t acpi_rapidstart_devclass;
+
+DRIVER_MODULE(acpi_rapidstart, acpi, acpi_rapidstart_driver, acpi_rapidstart_devclass,
+	      0, 0);
+MODULE_DEPEND(acpi_rapidstart, acpi, 1, 1, 1);
+