[src/trunk]: src/sys/dev/acpi/wmi add support for building as a module

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/8b24cba39215
branches:  trunk
changeset: 758180:8b24cba39215
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Sun Oct 24 18:26:29 2010 +0000

description:
add support for building as a module

diffstat:

 sys/dev/acpi/wmi/wmi_acpi.c |  81 +++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 79 insertions(+), 2 deletions(-)

diffs (105 lines):

diff -r f1decf8fe0d2 -r 8b24cba39215 sys/dev/acpi/wmi/wmi_acpi.c
--- a/sys/dev/acpi/wmi/wmi_acpi.c       Sun Oct 24 17:53:27 2010 +0000
+++ b/sys/dev/acpi/wmi/wmi_acpi.c       Sun Oct 24 18:26:29 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: wmi_acpi.c,v 1.8 2010/10/24 15:07:20 jmcneill Exp $    */
+/*     $NetBSD: wmi_acpi.c,v 1.9 2010/10/24 18:26:29 jmcneill Exp $    */
 
 /*-
  * Copyright (c) 2009, 2010 Jukka Ruohonen <jruohonen%iki.fi@localhost>
@@ -27,13 +27,14 @@
  * SUCH DAMAGE.
  */
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: wmi_acpi.c,v 1.8 2010/10/24 15:07:20 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: wmi_acpi.c,v 1.9 2010/10/24 18:26:29 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/device.h>
 #include <sys/endian.h>
 #include <sys/kmem.h>
 #include <sys/systm.h>
+#include <sys/module.h>
 
 #include <dev/acpi/acpireg.h>
 #include <dev/acpi/acpivar.h>
@@ -726,3 +727,79 @@
 
        return AcpiEvaluateObject(sc->sc_node->ad_handle, path, &arg, obuf);
 }
+
+#ifdef _MODULE
+
+MODULE(MODULE_CLASS_DRIVER, acpiwmi, NULL);
+CFDRIVER_DECL(acpiwmi, DV_DULL, NULL);
+
+static int acpiwmiloc[] = { -1 };
+extern struct cfattach acpiwmi_ca;
+
+static struct cfparent acpiparent = {
+       "acpinodebus", NULL, DVUNIT_ANY
+};
+
+static struct cfdata acpiwmi_cfdata[] = {
+       {
+               .cf_name = "acpiwmi",
+               .cf_atname = "acpiwmi",
+               .cf_unit = 0,
+               .cf_fstate = FSTATE_STAR,
+               .cf_loc = acpiwmiloc,
+               .cf_flags = 0,
+               .cf_pspec = &acpiparent,
+       },
+
+       { NULL }
+};
+
+static int
+acpiwmi_modcmd(modcmd_t cmd, void *opaque)
+{
+       int err;
+
+       switch (cmd) {
+
+       case MODULE_CMD_INIT:
+
+               err = config_cfdriver_attach(&acpiwmi_cd);
+
+               if (err != 0)
+                       return err;
+
+               err = config_cfattach_attach("acpiwmi", &acpiwmi_ca);
+
+               if (err != 0) {
+                       config_cfdriver_detach(&acpiwmi_cd);
+                       return err;
+               }
+
+               err = config_cfdata_attach(acpiwmi_cfdata, 1);
+
+               if (err != 0) {
+                       config_cfattach_detach("acpiwmi", &acpiwmi_ca);
+                       config_cfdriver_detach(&acpiwmi_cd);
+                       return err;
+               }
+
+               return 0;
+
+       case MODULE_CMD_FINI:
+
+               err = config_cfdata_detach(acpiwmi_cfdata);
+
+               if (err != 0)
+                       return err;
+
+               config_cfattach_detach("acpiwmi", &acpiwmi_ca);
+               config_cfdriver_detach(&acpiwmi_cd);
+
+               return 0;
+
+       default:
+               return ENOTTY;
+       }
+}
+
+#endif /* _MODULE */