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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* V4L2 controls framework private header.
*
* Copyright (C) 2010-2021 Hans Verkuil <hverkuil-cisco@xs4all.nl>
*/
#ifndef _V4L2_CTRLS_PRIV_H_
#define _V4L2_CTRLS_PRIV_H_
#define dprintk(vdev, fmt, arg...) do { \
if (!WARN_ON(!(vdev)) && ((vdev)->dev_debug & V4L2_DEV_DEBUG_CTRL)) \
printk(KERN_DEBUG pr_fmt("%s: %s: " fmt), \
__func__, video_device_node_name(vdev), ##arg); \
} while (0)
#define has_op(master, op) \
((master)->ops && (master)->ops->op)
#define call_op(master, op) \
(has_op(master, op) ? (master)->ops->op(master) : 0)
static inline u32 node2id(struct list_head *node)
{
return list_entry(node, struct v4l2_ctrl_ref, node)->ctrl->id;
}
/*
* Small helper function to determine if the autocluster is set to manual
* mode.
*/
static inline bool is_cur_manual(const struct v4l2_ctrl *master)
{
return master->is_auto && master->cur.val == master->manual_mode_value;
}
/*
* Small helper function to determine if the autocluster will be set to manual
* mode.
*/
static inline bool is_new_manual(const struct v4l2_ctrl *master)
{
return master->is_auto && master->val == master->manual_mode_value;
}
static inline u32 user_flags(const struct v4l2_ctrl *ctrl)
{
u32 flags = ctrl->flags;
if (ctrl->is_ptr)
flags |= V4L2_CTRL_FLAG_HAS_PAYLOAD;
return flags;
}
/* v4l2-ctrls-core.c */
void cur_to_new(struct v4l2_ctrl *ctrl);
void cur_to_req(struct v4l2_ctrl_ref *ref);
void new_to_cur(struct v4l2_fh *fh, struct v4l2_ctrl *ctrl, u32 ch_flags);
void new_to_req(struct v4l2_ctrl_ref *ref);
int req_to_new(struct v4l2_ctrl_ref *ref);
void send_initial_event(struct v4l2_fh *fh, struct v4l2_ctrl *ctrl);
void send_event(struct v4l2_fh *fh, struct v4l2_ctrl *ctrl, u32 changes);
int handler_new_ref(struct v4l2_ctrl_handler *hdl,
struct v4l2_ctrl *ctrl,
struct v4l2_ctrl_ref **ctrl_ref,
bool from_other_dev, bool allocate_req);
struct v4l2_ctrl_ref *find_ref(struct v4l2_ctrl_handler *hdl, u32 id);
struct v4l2_ctrl_ref *find_ref_lock(struct v4l2_ctrl_handler *hdl, u32 id);
int check_range(enum v4l2_ctrl_type type,
s64 min, s64 max, u64 step, s64 def);
void update_from_auto_cluster(struct v4l2_ctrl *master);
int try_or_set_cluster(struct v4l2_fh *fh, struct v4l2_ctrl *master,
bool set, u32 ch_flags);
/* v4l2-ctrls-api.c */
int v4l2_g_ext_ctrls_common(struct v4l2_ctrl_handler *hdl,
struct v4l2_ext_controls *cs,
struct video_device *vdev);
int try_set_ext_ctrls_common(struct v4l2_fh *fh,
struct v4l2_ctrl_handler *hdl,
struct v4l2_ext_controls *cs,
struct video_device *vdev, bool set);
/* v4l2-ctrls-request.c */
void v4l2_ctrl_handler_init_request(struct v4l2_ctrl_handler *hdl);
void v4l2_ctrl_handler_free_request(struct v4l2_ctrl_handler *hdl);
int v4l2_g_ext_ctrls_request(struct v4l2_ctrl_handler *hdl, struct video_device *vdev,
struct media_device *mdev, struct v4l2_ext_controls *cs);
int try_set_ext_ctrls_request(struct v4l2_fh *fh,
struct v4l2_ctrl_handler *hdl,
struct video_device *vdev,
struct media_device *mdev,
struct v4l2_ext_controls *cs, bool set);
#endif
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