Module Name: src
Committed By: jmcneill
Date: Sat Jun 3 14:48:03 UTC 2017
Modified Files:
src/sys/dev/fdt: files.fdt
Added Files:
src/sys/dev/fdt: display_timing.c display_timing.h
Log Message:
Add helper for parsing display timings.
To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 src/sys/dev/fdt/display_timing.c \
src/sys/dev/fdt/display_timing.h
cvs rdiff -u -r1.15 -r1.16 src/sys/dev/fdt/files.fdt
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/fdt/files.fdt
diff -u src/sys/dev/fdt/files.fdt:1.15 src/sys/dev/fdt/files.fdt:1.16
--- src/sys/dev/fdt/files.fdt:1.15 Fri Jun 2 15:09:16 2017
+++ src/sys/dev/fdt/files.fdt Sat Jun 3 14:48:03 2017
@@ -1,4 +1,4 @@
-# $NetBSD: files.fdt,v 1.15 2017/06/02 15:09:16 jmcneill Exp $
+# $NetBSD: files.fdt,v 1.16 2017/06/03 14:48:03 jmcneill Exp $
include "external/bsd/libfdt/conf/files.libfdt"
@@ -38,3 +38,6 @@ file dev/fdt/fdt_pinctrl.c fdtbus
device cpus { } : fdtbus
attach cpus at fdt
file dev/fdt/cpus.c cpus
+
+define fdt_display_timing
+file dev/fdt/display_timing.c fdt_display_timing
Added files:
Index: src/sys/dev/fdt/display_timing.c
diff -u /dev/null src/sys/dev/fdt/display_timing.c:1.1
--- /dev/null Sat Jun 3 14:48:03 2017
+++ src/sys/dev/fdt/display_timing.c Sat Jun 3 14:48:02 2017
@@ -0,0 +1,59 @@
+/* $NetBSD: display_timing.c,v 1.1 2017/06/03 14:48:02 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2017 Jared McNeill <[email protected]>
+ * 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 ``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.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: display_timing.c,v 1.1 2017/06/03 14:48:02 jmcneill Exp $");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/kmem.h>
+#include <sys/bus.h>
+
+#include <dev/fdt/fdtvar.h>
+#include <dev/fdt/display_timing.h>
+
+#define GETPROP(n, v) \
+ of_getprop_uint32(phandle, (n), (v))
+
+int
+display_timing_parse(int phandle, struct display_timing *timing)
+{
+ if (GETPROP("clock-frequency", &timing->clock_freq) ||
+ GETPROP("hactive", &timing->hactive) ||
+ GETPROP("vactive", &timing->vactive) ||
+ GETPROP("hfront-porch", &timing->hfront_porch) ||
+ GETPROP("hback-porch", &timing->hback_porch) ||
+ GETPROP("hsync-len", &timing->hsync_len) ||
+ GETPROP("vfront-porch", &timing->vfront_porch) ||
+ GETPROP("vback-porch", &timing->vback_porch) ||
+ GETPROP("vsync-len", &timing->vsync_len))
+ return EINVAL;
+
+ return 0;
+}
Index: src/sys/dev/fdt/display_timing.h
diff -u /dev/null src/sys/dev/fdt/display_timing.h:1.1
--- /dev/null Sat Jun 3 14:48:03 2017
+++ src/sys/dev/fdt/display_timing.h Sat Jun 3 14:48:02 2017
@@ -0,0 +1,47 @@
+/* $NetBSD: display_timing.h,v 1.1 2017/06/03 14:48:02 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2017 Jared McNeill <[email protected]>
+ * 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 ``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.
+ */
+
+#ifndef _FDT_DISPLAY_TIMING_H
+#define _FDT_DISPLAY_TIMING_H
+
+struct display_timing {
+ /* required */
+ u_int clock_freq;
+ u_int hactive;
+ u_int vactive;
+ u_int hfront_porch;
+ u_int hback_porch;
+ u_int hsync_len;
+ u_int vfront_porch;
+ u_int vback_porch;
+ u_int vsync_len;
+};
+
+int display_timing_parse(int, struct display_timing *);
+
+#endif /* !_FDT_DISPLAY_TIMING_H */
