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-rw-r--r--sys/dev/speaker/spkr.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/sys/dev/speaker/spkr.c b/sys/dev/speaker/spkr.c
index 0f7ed61..e6f0e95 100644
--- a/sys/dev/speaker/spkr.c
+++ b/sys/dev/speaker/spkr.c
@@ -9,11 +9,14 @@
#include <sys/param.h>
#include <sys/systm.h>
+#include <sys/bus.h>
#include <sys/kernel.h>
+#include <sys/module.h>
#include <sys/uio.h>
#include <sys/conf.h>
#include <sys/ctype.h>
#include <sys/malloc.h>
+#include <isa/isavar.h>
#include <i386/isa/isa.h>
#include <i386/isa/timerreg.h>
#include <machine/clock.h>
@@ -594,5 +597,46 @@ spkr_drvinit(void *unused)
SYSINIT(spkrdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,spkr_drvinit,NULL)
+/*
+ * Install placeholder to claim the resources owned by the
+ * AT tone generator.
+ */
+static struct isa_pnp_id atspeaker_ids[] = {
+ { 0x0008d041 /* PNP0800 */, "AT speaker" },
+ { 0 }
+};
+
+static int
+atspeaker_probe(device_t dev)
+{
+ return(ISA_PNP_PROBE(device_get_parent(dev), dev, atspeaker_ids));
+}
+
+static int
+atspeaker_attach(device_t dev)
+{
+ return(0);
+}
+
+static device_method_t atspeaker_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, atspeaker_probe),
+ DEVMETHOD(device_attach, atspeaker_attach),
+ DEVMETHOD(device_detach, bus_generic_detach),
+ DEVMETHOD(device_shutdown, bus_generic_shutdown),
+ DEVMETHOD(device_suspend, bus_generic_suspend),
+ DEVMETHOD(device_resume, bus_generic_resume),
+ { 0, 0 }
+};
+
+static driver_t atspeaker_driver = {
+ "atspeaker",
+ atspeaker_methods,
+ 1, /* no softc */
+};
+
+static devclass_t atspeaker_devclass;
+
+DRIVER_MODULE(atspeaker, isa, atspeaker_driver, atspeaker_devclass, 0, 0);
/* spkr.c ends here */
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