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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/media/platform/renesas/vsp1/vsp1_histo.h | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/media/platform/renesas/vsp1/vsp1_histo.h')
-rw-r--r-- | drivers/media/platform/renesas/vsp1/vsp1_histo.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/drivers/media/platform/renesas/vsp1/vsp1_histo.h b/drivers/media/platform/renesas/vsp1/vsp1_histo.h new file mode 100644 index 000000000..06f029846 --- /dev/null +++ b/drivers/media/platform/renesas/vsp1/vsp1_histo.h @@ -0,0 +1,77 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * vsp1_histo.h -- R-Car VSP1 Histogram API + * + * Copyright (C) 2016 Renesas Electronics Corporation + * Copyright (C) 2016 Laurent Pinchart + * + * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) + */ +#ifndef __VSP1_HISTO_H__ +#define __VSP1_HISTO_H__ + +#include <linux/list.h> +#include <linux/mutex.h> +#include <linux/spinlock.h> + +#include <media/media-entity.h> +#include <media/v4l2-dev.h> +#include <media/videobuf2-v4l2.h> + +#include "vsp1_entity.h" + +struct vsp1_device; + +#define HISTO_PAD_SINK 0 +#define HISTO_PAD_SOURCE 1 + +struct vsp1_histogram_buffer { + struct vb2_v4l2_buffer buf; + struct list_head queue; + void *addr; +}; + +struct vsp1_histogram { + struct vsp1_entity entity; + struct video_device video; + struct media_pad pad; + + const u32 *formats; + unsigned int num_formats; + size_t data_size; + u32 meta_format; + + struct mutex lock; + struct vb2_queue queue; + + spinlock_t irqlock; + struct list_head irqqueue; + + wait_queue_head_t wait_queue; + bool readout; +}; + +static inline struct vsp1_histogram *vdev_to_histo(struct video_device *vdev) +{ + return container_of(vdev, struct vsp1_histogram, video); +} + +static inline struct vsp1_histogram *subdev_to_histo(struct v4l2_subdev *subdev) +{ + return container_of(subdev, struct vsp1_histogram, entity.subdev); +} + +int vsp1_histogram_init(struct vsp1_device *vsp1, struct vsp1_histogram *histo, + enum vsp1_entity_type type, const char *name, + const struct vsp1_entity_operations *ops, + const unsigned int *formats, unsigned int num_formats, + size_t data_size, u32 meta_format); +void vsp1_histogram_destroy(struct vsp1_entity *entity); + +struct vsp1_histogram_buffer * +vsp1_histogram_buffer_get(struct vsp1_histogram *histo); +void vsp1_histogram_buffer_complete(struct vsp1_histogram *histo, + struct vsp1_histogram_buffer *buf, + size_t size); + +#endif /* __VSP1_HISTO_H__ */ |