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- #ifndef _MEDIA_V4L2_MEM2MEM_H
- #define _MEDIA_V4L2_MEM2MEM_H
- #include <media/videobuf2-core.h>
- struct v4l2_m2m_ops {
- void (*device_run)(void *priv);
- int (*job_ready)(void *priv);
- void (*job_abort)(void *priv);
- void (*lock)(void *priv);
- void (*unlock)(void *priv);
- };
- struct v4l2_m2m_dev;
- struct v4l2_m2m_queue_ctx {
- struct vb2_queue q;
-
- struct list_head rdy_queue;
- spinlock_t rdy_spinlock;
- u8 num_rdy;
- bool buffered;
- };
- struct v4l2_m2m_ctx {
-
- struct mutex *q_lock;
- struct v4l2_m2m_dev *m2m_dev;
-
- struct v4l2_m2m_queue_ctx cap_q_ctx;
-
- struct v4l2_m2m_queue_ctx out_q_ctx;
-
- struct list_head queue;
- unsigned long job_flags;
- wait_queue_head_t finished;
-
- void *priv;
- };
- struct v4l2_m2m_buffer {
- struct vb2_buffer vb;
- struct list_head list;
- };
- void *v4l2_m2m_get_curr_priv(struct v4l2_m2m_dev *m2m_dev);
- struct vb2_queue *v4l2_m2m_get_vq(struct v4l2_m2m_ctx *m2m_ctx,
- enum v4l2_buf_type type);
- void v4l2_m2m_try_schedule(struct v4l2_m2m_ctx *m2m_ctx);
- void v4l2_m2m_job_finish(struct v4l2_m2m_dev *m2m_dev,
- struct v4l2_m2m_ctx *m2m_ctx);
- static inline void
- v4l2_m2m_buf_done(struct vb2_buffer *buf, enum vb2_buffer_state state)
- {
- vb2_buffer_done(buf, state);
- }
- int v4l2_m2m_reqbufs(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
- struct v4l2_requestbuffers *reqbufs);
- int v4l2_m2m_querybuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
- struct v4l2_buffer *buf);
- int v4l2_m2m_qbuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
- struct v4l2_buffer *buf);
- int v4l2_m2m_dqbuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
- struct v4l2_buffer *buf);
- int v4l2_m2m_prepare_buf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
- struct v4l2_buffer *buf);
- int v4l2_m2m_create_bufs(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
- struct v4l2_create_buffers *create);
- int v4l2_m2m_expbuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
- struct v4l2_exportbuffer *eb);
- int v4l2_m2m_streamon(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
- enum v4l2_buf_type type);
- int v4l2_m2m_streamoff(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
- enum v4l2_buf_type type);
- unsigned int v4l2_m2m_poll(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
- struct poll_table_struct *wait);
- int v4l2_m2m_mmap(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
- struct vm_area_struct *vma);
- struct v4l2_m2m_dev *v4l2_m2m_init(const struct v4l2_m2m_ops *m2m_ops);
- void v4l2_m2m_release(struct v4l2_m2m_dev *m2m_dev);
- struct v4l2_m2m_ctx *v4l2_m2m_ctx_init(struct v4l2_m2m_dev *m2m_dev,
- void *drv_priv,
- int (*queue_init)(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq));
- static inline void v4l2_m2m_set_src_buffered(struct v4l2_m2m_ctx *m2m_ctx,
- bool buffered)
- {
- m2m_ctx->out_q_ctx.buffered = buffered;
- }
- static inline void v4l2_m2m_set_dst_buffered(struct v4l2_m2m_ctx *m2m_ctx,
- bool buffered)
- {
- m2m_ctx->cap_q_ctx.buffered = buffered;
- }
- void v4l2_m2m_ctx_release(struct v4l2_m2m_ctx *m2m_ctx);
- void v4l2_m2m_buf_queue(struct v4l2_m2m_ctx *m2m_ctx, struct vb2_buffer *vb);
- static inline
- unsigned int v4l2_m2m_num_src_bufs_ready(struct v4l2_m2m_ctx *m2m_ctx)
- {
- return m2m_ctx->out_q_ctx.num_rdy;
- }
- static inline
- unsigned int v4l2_m2m_num_dst_bufs_ready(struct v4l2_m2m_ctx *m2m_ctx)
- {
- return m2m_ctx->cap_q_ctx.num_rdy;
- }
- void *v4l2_m2m_next_buf(struct v4l2_m2m_queue_ctx *q_ctx);
- static inline void *v4l2_m2m_next_src_buf(struct v4l2_m2m_ctx *m2m_ctx)
- {
- return v4l2_m2m_next_buf(&m2m_ctx->out_q_ctx);
- }
- static inline void *v4l2_m2m_next_dst_buf(struct v4l2_m2m_ctx *m2m_ctx)
- {
- return v4l2_m2m_next_buf(&m2m_ctx->cap_q_ctx);
- }
- static inline
- struct vb2_queue *v4l2_m2m_get_src_vq(struct v4l2_m2m_ctx *m2m_ctx)
- {
- return &m2m_ctx->out_q_ctx.q;
- }
- static inline
- struct vb2_queue *v4l2_m2m_get_dst_vq(struct v4l2_m2m_ctx *m2m_ctx)
- {
- return &m2m_ctx->cap_q_ctx.q;
- }
- void *v4l2_m2m_buf_remove(struct v4l2_m2m_queue_ctx *q_ctx);
- static inline void *v4l2_m2m_src_buf_remove(struct v4l2_m2m_ctx *m2m_ctx)
- {
- return v4l2_m2m_buf_remove(&m2m_ctx->out_q_ctx);
- }
- static inline void *v4l2_m2m_dst_buf_remove(struct v4l2_m2m_ctx *m2m_ctx)
- {
- return v4l2_m2m_buf_remove(&m2m_ctx->cap_q_ctx);
- }
- int v4l2_m2m_ioctl_reqbufs(struct file *file, void *priv,
- struct v4l2_requestbuffers *rb);
- int v4l2_m2m_ioctl_create_bufs(struct file *file, void *fh,
- struct v4l2_create_buffers *create);
- int v4l2_m2m_ioctl_querybuf(struct file *file, void *fh,
- struct v4l2_buffer *buf);
- int v4l2_m2m_ioctl_expbuf(struct file *file, void *fh,
- struct v4l2_exportbuffer *eb);
- int v4l2_m2m_ioctl_qbuf(struct file *file, void *fh,
- struct v4l2_buffer *buf);
- int v4l2_m2m_ioctl_dqbuf(struct file *file, void *fh,
- struct v4l2_buffer *buf);
- int v4l2_m2m_ioctl_prepare_buf(struct file *file, void *fh,
- struct v4l2_buffer *buf);
- int v4l2_m2m_ioctl_streamon(struct file *file, void *fh,
- enum v4l2_buf_type type);
- int v4l2_m2m_ioctl_streamoff(struct file *file, void *fh,
- enum v4l2_buf_type type);
- int v4l2_m2m_fop_mmap(struct file *file, struct vm_area_struct *vma);
- unsigned int v4l2_m2m_fop_poll(struct file *file, poll_table *wait);
- #endif /* _MEDIA_V4L2_MEM2MEM_H */
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