from the "Ok, so I couldn't sleep" department: minimal driver for the beeper at ebus device

1 files changed, 109 insertions, 0 deletions

diff --git a/sys/arch/sparc64/dev/beeper.c b/sys/arch/sparc64/dev/beeper.c
new file mode 100644
index 00000000000..eeac93da0e0
--- /dev/null
+++ b/sys/arch/sparc64/dev/beeper.c
@@ -0,0 +1,109 @@
+/*	$OpenBSD: beeper.c,v 1.1 2001/09/29 07:16:12 jason Exp $	*/
+
+/*
+ * Copyright (c) 2001 Jason L. Wright (jason@thought.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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Jason L. Wright
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
+ */
+
+/*
+ * Driver for beeper device on SUNW,Ultra-1-Engine.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/conf.h>
+
+#include <machine/bus.h>
+#include <machine/autoconf.h>
+#include <machine/openfirm.h>
+
+#include <sparc64/dev/ebusreg.h>
+#include <sparc64/dev/ebusvar.h>
+
+struct beeper_softc {
+	struct device		sc_dev;
+	bus_space_tag_t		sc_iot;
+	bus_space_handle_t	sc_ioh;
+};
+
+#define	BEEP_REG	0
+
+int	beeper_match __P((struct device *, void *, void *));
+void	beeper_attach __P((struct device *, struct device *, void *));
+
+struct cfattach beeper_ca = {
+	sizeof(struct beeper_softc), beeper_match, beeper_attach
+};
+
+struct cfdriver beeper_cd = {
+	NULL, "beeper", DV_DULL
+};
+
+int
+beeper_match(parent, match, aux)
+	struct device *parent;
+	void *match;
+	void *aux;
+{
+	struct ebus_attach_args *ea = aux;
+
+	if (strcmp(ea->ea_name, "beeper") == 0)
+		return (1);
+	return (0);
+}
+
+void
+beeper_attach(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct beeper_softc *sc = (void *)self;
+	struct ebus_attach_args *ea = aux;
+
+	sc->sc_iot = ea->ea_bustag;
+
+	/* Use prom address if available, otherwise map it. */
+	if (ea->ea_nvaddrs)
+		sc->sc_ioh = (bus_space_handle_t)ea->ea_vaddrs[0];
+	else if (ebus_bus_map(sc->sc_iot, 0,
+			      EBUS_PADDR_FROM_REG(&ea->ea_regs[0]),
+			      ea->ea_regs[0].size,
+			      BUS_SPACE_MAP_LINEAR,
+			      0, &sc->sc_ioh) != 0) {
+		printf(": can't map register space\n");
+                return;
+	}
+
+	bus_space_write_4(sc->sc_iot, sc->sc_ioh, BEEP_REG, 1);
+	DELAY(0xc8 * 1000);
+	bus_space_write_4(sc->sc_iot, sc->sc_ioh, BEEP_REG, 0);
+	printf("\n");
+}