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authorTodor Tomov <ttomov@mm-sol.com>2011-02-03 10:50:48 +0200
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2011-02-07 16:32:44 +0100
commitd4968694e251f603e7c2b91608746cf4c382723a (patch)
tree6a46bfc59051f7469824108a8819dd08dd75f59e /src/subdev.c
parent14ddd592a6fcba2ceb751c0d4b0a3b5d46f2a59f (diff)
Use autotools
Use autoconf and automake for building. Quick instructions are added in INSTALL. Application source files are moved to src subdirectory. Signed-off-by: Todor Tomov <ttomov@mm-sol.com>
Diffstat (limited to 'src/subdev.c')
-rw-r--r--src/subdev.c187
1 files changed, 187 insertions, 0 deletions
diff --git a/src/subdev.c b/src/subdev.c
new file mode 100644
index 0000000..3960d05
--- /dev/null
+++ b/src/subdev.c
@@ -0,0 +1,187 @@
+/*
+ * Media controller test application
+ *
+ * Copyright (C) 2010 Ideas on board SPRL <laurent.pinchart@ideasonboard.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ */
+
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <linux/v4l2-subdev.h>
+
+#include "media.h"
+#include "subdev.h"
+#include "tools.h"
+
+int v4l2_subdev_open(struct media_entity *entity)
+{
+ if (entity->fd != -1)
+ return 0;
+
+ entity->fd = open(entity->devname, O_RDWR);
+ if (entity->fd == -1) {
+ printf("%s: Failed to open subdev device node %s\n", __func__,
+ entity->devname);
+ return -errno;
+ }
+
+ return 0;
+}
+
+void v4l2_subdev_close(struct media_entity *entity)
+{
+ close(entity->fd);
+}
+
+int v4l2_subdev_get_format(struct media_entity *entity,
+ struct v4l2_mbus_framefmt *format, unsigned int pad,
+ enum v4l2_subdev_format_whence which)
+{
+ struct v4l2_subdev_format fmt;
+ int ret;
+
+ ret = v4l2_subdev_open(entity);
+ if (ret < 0)
+ return ret;
+
+ memset(&fmt, 0, sizeof(fmt));
+ fmt.pad = pad;
+ fmt.which = which;
+
+ ret = ioctl(entity->fd, VIDIOC_SUBDEV_G_FMT, &fmt);
+ if (ret < 0)
+ return -errno;
+
+ *format = fmt.format;
+ return 0;
+}
+
+int v4l2_subdev_set_format(struct media_entity *entity,
+ struct v4l2_mbus_framefmt *format, unsigned int pad,
+ enum v4l2_subdev_format_whence which)
+{
+ struct v4l2_subdev_format fmt;
+ int ret;
+
+ ret = v4l2_subdev_open(entity);
+ if (ret < 0)
+ return ret;
+
+ memset(&fmt, 0, sizeof(fmt));
+ fmt.pad = pad;
+ fmt.which = which;
+ fmt.format = *format;
+
+ ret = ioctl(entity->fd, VIDIOC_SUBDEV_S_FMT, &fmt);
+ if (ret < 0)
+ return -errno;
+
+ *format = fmt.format;
+ return 0;
+}
+
+int v4l2_subdev_get_crop(struct media_entity *entity, struct v4l2_rect *rect,
+ unsigned int pad, enum v4l2_subdev_format_whence which)
+{
+ struct v4l2_subdev_crop crop;
+ int ret;
+
+ ret = v4l2_subdev_open(entity);
+ if (ret < 0)
+ return ret;
+
+ memset(&crop, 0, sizeof(crop));
+ crop.pad = pad;
+ crop.which = which;
+
+ ret = ioctl(entity->fd, VIDIOC_SUBDEV_G_CROP, &crop);
+ if (ret < 0)
+ return -errno;
+
+ *rect = crop.rect;
+ return 0;
+}
+
+int v4l2_subdev_set_crop(struct media_entity *entity, struct v4l2_rect *rect,
+ unsigned int pad, enum v4l2_subdev_format_whence which)
+{
+ struct v4l2_subdev_crop crop;
+ int ret;
+
+ ret = v4l2_subdev_open(entity);
+ if (ret < 0)
+ return ret;
+
+ memset(&crop, 0, sizeof(crop));
+ crop.pad = pad;
+ crop.which = which;
+ crop.rect = *rect;
+
+ ret = ioctl(entity->fd, VIDIOC_SUBDEV_S_CROP, &crop);
+ if (ret < 0)
+ return -errno;
+
+ *rect = crop.rect;
+ return 0;
+}
+
+int v4l2_subdev_get_frame_interval(struct media_entity *entity,
+ struct v4l2_fract *interval)
+{
+ struct v4l2_subdev_frame_interval ival;
+ int ret;
+
+ ret = v4l2_subdev_open(entity);
+ if (ret < 0)
+ return ret;
+
+ memset(&ival, 0, sizeof(ival));
+
+ ret = ioctl(entity->fd, VIDIOC_SUBDEV_G_FRAME_INTERVAL, &ival);
+ if (ret < 0)
+ return -errno;
+
+ *interval = ival.interval;
+ return 0;
+}
+
+int v4l2_subdev_set_frame_interval(struct media_entity *entity,
+ struct v4l2_fract *interval)
+{
+ struct v4l2_subdev_frame_interval ival;
+ int ret;
+
+ ret = v4l2_subdev_open(entity);
+ if (ret < 0)
+ return ret;
+
+ memset(&ival, 0, sizeof(ival));
+ ival.interval = *interval;
+
+ ret = ioctl(entity->fd, VIDIOC_SUBDEV_S_FRAME_INTERVAL, &ival);
+ if (ret < 0)
+ return -errno;
+
+ *interval = ival.interval;
+ return 0;
+}