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authorMark Kettenis <kettenis@cvs.openbsd.org>2008-03-13 22:46:17 +0000
committerMark Kettenis <kettenis@cvs.openbsd.org>2008-03-13 22:46:17 +0000
commit10f98e13f3817a05d80af6290f622d0bc692e3a1 (patch)
treeac8e3d1330b843b99e5e0cd25c9eefbe3c86fc58 /sys
parent8d4f1eb4599d904d7a6f870d3d1b015fedb67d28 (diff)
First shot at a driver to get the time-of-day on the e10k.
Diffstat (limited to 'sys')
-rw-r--r--sys/arch/sparc64/dev/prtc.c100
1 files changed, 100 insertions, 0 deletions
diff --git a/sys/arch/sparc64/dev/prtc.c b/sys/arch/sparc64/dev/prtc.c
new file mode 100644
index 00000000000..a8779941b08
--- /dev/null
+++ b/sys/arch/sparc64/dev/prtc.c
@@ -0,0 +1,100 @@
+/* $OpenBSD: prtc.c,v 1.1 2008/03/13 22:46:16 kettenis Exp $ */
+
+/*
+ * Copyright (c) 2008 Mark Kettenis
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * Driver to get the time-of-day from the PROM for machines that don't
+ * have a hardware real-time clock, like the Enterprise 10000,
+ * Fire 12K and Fire 15K.
+ */
+
+#include <sys/param.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+#include <sys/systm.h>
+
+#include <machine/autoconf.h>
+#include <machine/openfirm.h>
+
+#include <dev/clock_subr.h>
+
+extern todr_chip_handle_t todr_handle;
+
+int prtc_match(struct device *, void *, void *);
+void prtc_attach(struct device *, struct device *, void *);
+
+struct cfattach prtc_ca = {
+ sizeof(struct device), prtc_match, prtc_attach
+};
+
+struct cfdriver prtc_cd = {
+ NULL, "prtc", DV_DULL
+};
+
+int prtc_gettime(todr_chip_handle_t, struct timeval *);
+int prtc_settime(todr_chip_handle_t, struct timeval *);
+
+int
+prtc_match(struct device *parent, void *match, void *aux)
+{
+ struct mainbus_attach_args *ma = aux;
+
+ if (strcmp(ma->ma_name, "prtc") == 0)
+ return (1);
+
+ return (0);
+}
+
+void
+prtc_attach(struct device *parent, struct device *self, void *aux)
+{
+ todr_chip_handle_t handle;
+
+ printf("\n");
+
+ handle = malloc(sizeof(struct todr_chip_handle), M_DEVBUF, M_NOWAIT);
+ if (handle == NULL)
+ panic("couldn't allocate todr_handle");
+
+ handle->cookie = self;
+ handle->todr_gettime = prtc_gettime;
+ handle->todr_settime = prtc_settime;
+
+ handle->bus_cookie = NULL;
+ handle->todr_setwen = NULL;
+ todr_handle = handle;
+}
+
+int
+prtc_gettime(todr_chip_handle_t handle, struct timeval *tv)
+{
+ char cmd[32];
+ u_int32_t tod = 0;
+
+ snprintf(cmd, sizeof(cmd), "h# %08x unix-gettod", &tod);
+ OF_interpret(cmd, 0);
+
+ tv->tv_sec = tod;
+ tv->tv_usec = 0;
+ return (0);
+}
+
+int
+prtc_settime(todr_chip_handle_t handle, struct timeval *tv)
+{
+ return (0);
+}