#ifndef _V4L2_SUBDEV_H
#define _V4L2_SUBDEV_H
+#include <linux/v4l2-subdev.h>
+#include <media/media-entity.h>
#include <media/v4l2-common.h>
+#include <media/v4l2-dev.h>
+#include <media/v4l2-fh.h>
#include <media/v4l2-mediabus.h>
/* generic v4l2_device notify callback notification values */
struct v4l2_device;
struct v4l2_ctrl_handler;
+struct v4l2_event_subscription;
+struct v4l2_fh;
struct v4l2_subdev;
+struct v4l2_subdev_fh;
struct tuner_setup;
/* decode_vbi_line */
int (*s_power)(struct v4l2_subdev *sd, int on);
int (*interrupt_service_routine)(struct v4l2_subdev *sd,
u32 status, bool *handled);
+ int (*subscribe_event)(struct v4l2_subdev *sd, struct v4l2_fh *fh,
+ struct v4l2_event_subscription *sub);
+ int (*unsubscribe_event)(struct v4l2_subdev *sd, struct v4l2_fh *fh,
+ struct v4l2_event_subscription *sub);
};
/* s_mode: switch the tuner to a specific tuner mode. Replacement of s_radio.
int (*s_crop)(struct v4l2_subdev *sd, struct v4l2_crop *crop);
int (*g_parm)(struct v4l2_subdev *sd, struct v4l2_streamparm *param);
int (*s_parm)(struct v4l2_subdev *sd, struct v4l2_streamparm *param);
+ int (*g_frame_interval)(struct v4l2_subdev *sd,
+ struct v4l2_subdev_frame_interval *interval);
+ int (*s_frame_interval)(struct v4l2_subdev *sd,
+ struct v4l2_subdev_frame_interval *interval);
int (*enum_framesizes)(struct v4l2_subdev *sd, struct v4l2_frmsizeenum *fsize);
int (*enum_frameintervals)(struct v4l2_subdev *sd, struct v4l2_frmivalenum *fival);
int (*enum_dv_presets) (struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings);
int (*enum_mbus_fmt)(struct v4l2_subdev *sd, unsigned int index,
enum v4l2_mbus_pixelcode *code);
+ int (*enum_mbus_fsizes)(struct v4l2_subdev *sd,
+ struct v4l2_frmsizeenum *fsize);
int (*g_mbus_fmt)(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *fmt);
int (*try_mbus_fmt)(struct v4l2_subdev *sd,
* This is needed for some sensors, which always corrupt
* several top lines of the output image, or which send their
* metadata in them.
+ * @g_skip_frames: number of frames to skip at stream start. This is needed for
+ * buggy sensors that generate faulty frames when they are
+ * turned on.
*/
struct v4l2_subdev_sensor_ops {
int (*g_skip_top_lines)(struct v4l2_subdev *sd, u32 *lines);
+ int (*g_skip_frames)(struct v4l2_subdev *sd, u32 *frames);
};
/*
struct v4l2_subdev_ir_parameters *params);
};
+struct v4l2_subdev_pad_ops {
+ int (*enum_mbus_code)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_mbus_code_enum *code);
+ int (*enum_frame_size)(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_frame_size_enum *fse);
+ int (*enum_frame_interval)(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_frame_interval_enum *fie);
+ int (*get_fmt)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_format *format);
+ int (*set_fmt)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_format *format);
+ int (*set_crop)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_crop *crop);
+ int (*get_crop)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_crop *crop);
+};
+
struct v4l2_subdev_ops {
const struct v4l2_subdev_core_ops *core;
const struct v4l2_subdev_tuner_ops *tuner;
const struct v4l2_subdev_vbi_ops *vbi;
const struct v4l2_subdev_ir_ops *ir;
const struct v4l2_subdev_sensor_ops *sensor;
+ const struct v4l2_subdev_pad_ops *pad;
};
/*
*
* unregistered: called when this subdev is unregistered. When called the
* v4l2_dev field is still set to the correct v4l2_device.
+ *
+ * open: called when the subdev device node is opened by an application.
+ *
+ * close: called when the subdev device node is closed.
*/
struct v4l2_subdev_internal_ops {
int (*registered)(struct v4l2_subdev *sd);
void (*unregistered)(struct v4l2_subdev *sd);
+ int (*open)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh);
+ int (*close)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh);
};
#define V4L2_SUBDEV_NAME_SIZE 32
/* Set this flag if this subdev is a i2c device. */
-#define V4L2_SUBDEV_FL_IS_I2C (1U << 0)
+#define V4L2_SUBDEV_FL_IS_I2C (1U << 0)
/* Set this flag if this subdev is a spi device. */
-#define V4L2_SUBDEV_FL_IS_SPI (1U << 1)
+#define V4L2_SUBDEV_FL_IS_SPI (1U << 1)
+/* Set this flag if this subdev needs a device node. */
+#define V4L2_SUBDEV_FL_HAS_DEVNODE (1U << 2)
+/* Set this flag if this subdev generates events. */
+#define V4L2_SUBDEV_FL_HAS_EVENTS (1U << 3)
/* Each instance of a subdev driver should create this struct, either
stand-alone or embedded in a larger struct.
*/
struct v4l2_subdev {
+#if defined(CONFIG_MEDIA_CONTROLLER)
+ struct media_entity entity;
+#endif
struct list_head list;
struct module *owner;
u32 flags;
/* pointer to private data */
void *dev_priv;
void *host_priv;
+ /* subdev device node */
+ struct video_device devnode;
+ /* number of events to be allocated on open */
+ unsigned int nevents;
+};
+
+#define media_entity_to_v4l2_subdev(ent) \
+ container_of(ent, struct v4l2_subdev, entity)
+#define vdev_to_v4l2_subdev(vdev) \
+ container_of(vdev, struct v4l2_subdev, devnode)
+
+/*
+ * Used for storing subdev information per file handle
+ */
+struct v4l2_subdev_fh {
+ struct v4l2_fh vfh;
+#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
+ struct v4l2_mbus_framefmt *try_fmt;
+ struct v4l2_rect *try_crop;
+#endif
};
+#define to_v4l2_subdev_fh(fh) \
+ container_of(fh, struct v4l2_subdev_fh, vfh)
+
+#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
+static inline struct v4l2_mbus_framefmt *
+v4l2_subdev_get_try_format(struct v4l2_subdev_fh *fh, unsigned int pad)
+{
+ return &fh->try_fmt[pad];
+}
+
+static inline struct v4l2_rect *
+v4l2_subdev_get_try_crop(struct v4l2_subdev_fh *fh, unsigned int pad)
+{
+ return &fh->try_crop[pad];
+}
+#endif
+
+extern const struct v4l2_file_operations v4l2_subdev_fops;
+
static inline void v4l2_set_subdevdata(struct v4l2_subdev *sd, void *p)
{
sd->dev_priv = p;
return sd->host_priv;
}
-static inline void v4l2_subdev_init(struct v4l2_subdev *sd,
- const struct v4l2_subdev_ops *ops)
-{
- INIT_LIST_HEAD(&sd->list);
- /* ops->core MUST be set */
- BUG_ON(!ops || !ops->core);
- sd->ops = ops;
- sd->v4l2_dev = NULL;
- sd->flags = 0;
- sd->name[0] = '\0';
- sd->grp_id = 0;
- sd->dev_priv = NULL;
- sd->host_priv = NULL;
-}
+void v4l2_subdev_init(struct v4l2_subdev *sd,
+ const struct v4l2_subdev_ops *ops);
/* Call an ops of a v4l2_subdev, doing the right checks against
NULL pointers.
git.openpandora.org / pandora-kernel.git / blobdiff