From 3c5be988e0b6a2f368e1659083b39e1f7ac909aa Mon Sep 17 00:00:00 2001 From: Junghak Sung Date: Tue, 6 Oct 2015 06:37:49 -0300 Subject: [media] media: videobuf2: Move v4l2-specific stuff to videobuf2-v4l2 Move v4l2-specific stuff from videobu2-core to videobuf2-v4l2 without doing any functional changes. Signed-off-by: Junghak Sung Signed-off-by: Geunyoung Kim Acked-by: Seung-Woo Kim Acked-by: Inki Dae Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/videobuf2-core.h | 108 ++++++----------------------------------- include/media/videobuf2-dvb.h | 8 ++- include/media/videobuf2-v4l2.h | 96 ++++++++++++++++++++++++++++++++++++ 3 files changed, 118 insertions(+), 94 deletions(-) (limited to 'include/media') diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index d3659d79b988..647ebfe5174f 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -15,7 +15,6 @@ #include #include #include -#include #include #define VB2_MAX_FRAME (32) @@ -504,23 +503,25 @@ void vb2_buffer_done(struct vb2_buffer *vb, enum vb2_buffer_state state); void vb2_discard_done(struct vb2_queue *q); int vb2_wait_for_all_buffers(struct vb2_queue *q); -int vb2_querybuf(struct vb2_queue *q, struct v4l2_buffer *b); -int vb2_reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req); +int vb2_core_querybuf(struct vb2_queue *q, unsigned int index, void *pb); +int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory, + unsigned int *count); +int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory, + unsigned int *count, const void *parg); +int vb2_core_prepare_buf(struct vb2_queue *q, unsigned int index, void *pb); +int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb); +int vb2_core_dqbuf(struct vb2_queue *q, void *pb, bool nonblocking); -int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create); -int vb2_prepare_buf(struct vb2_queue *q, struct v4l2_buffer *b); +int vb2_core_streamon(struct vb2_queue *q, unsigned int type); +int vb2_core_streamoff(struct vb2_queue *q, unsigned int type); -int __must_check vb2_queue_init(struct vb2_queue *q); +int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type, + unsigned int index, unsigned int plane, unsigned int flags); -void vb2_queue_release(struct vb2_queue *q); -void vb2_queue_error(struct vb2_queue *q); - -int vb2_qbuf(struct vb2_queue *q, struct v4l2_buffer *b); -int vb2_expbuf(struct vb2_queue *q, struct v4l2_exportbuffer *eb); -int vb2_dqbuf(struct vb2_queue *q, struct v4l2_buffer *b, bool nonblocking); +int vb2_core_queue_init(struct vb2_queue *q); +void vb2_core_queue_release(struct vb2_queue *q); -int vb2_streamon(struct vb2_queue *q, enum v4l2_buf_type type); -int vb2_streamoff(struct vb2_queue *q, enum v4l2_buf_type type); +void vb2_queue_error(struct vb2_queue *q); int vb2_mmap(struct vb2_queue *q, struct vm_area_struct *vma); #ifndef CONFIG_MMU @@ -530,41 +531,6 @@ unsigned long vb2_get_unmapped_area(struct vb2_queue *q, unsigned long pgoff, unsigned long flags); #endif -unsigned int vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait); -size_t vb2_read(struct vb2_queue *q, char __user *data, size_t count, - loff_t *ppos, int nonblock); -size_t vb2_write(struct vb2_queue *q, const char __user *data, size_t count, - loff_t *ppos, int nonblock); - -/* - * vb2_thread_fnc - callback function for use with vb2_thread - * - * This is called whenever a buffer is dequeued in the thread. - */ -typedef int (*vb2_thread_fnc)(struct vb2_buffer *vb, void *priv); - -/** - * vb2_thread_start() - start a thread for the given queue. - * @q: videobuf queue - * @fnc: callback function - * @priv: priv pointer passed to the callback function - * @thread_name:the name of the thread. This will be prefixed with "vb2-". - * - * This starts a thread that will queue and dequeue until an error occurs - * or @vb2_thread_stop is called. - * - * This function should not be used for anything else but the videobuf2-dvb - * support. If you think you have another good use-case for this, then please - * contact the linux-media mailinglist first. - */ -int vb2_thread_start(struct vb2_queue *q, vb2_thread_fnc fnc, void *priv, - const char *thread_name); - -/** - * vb2_thread_stop() - stop the thread for the given queue. - * @q: videobuf queue - */ -int vb2_thread_stop(struct vb2_queue *q); /** * vb2_is_streaming() - return streaming status of the queue @@ -669,48 +635,4 @@ static inline void vb2_clear_last_buffer_dequeued(struct vb2_queue *q) q->last_buffer_dequeued = false; } -/* - * The following functions are not part of the vb2 core API, but are simple - * helper functions that you can use in your struct v4l2_file_operations, - * struct v4l2_ioctl_ops and struct vb2_ops. They will serialize if vb2_queue->lock - * or video_device->lock is set, and they will set and test vb2_queue->owner - * to check if the calling filehandle is permitted to do the queuing operation. - */ - -/* struct v4l2_ioctl_ops helpers */ - -int vb2_ioctl_reqbufs(struct file *file, void *priv, - struct v4l2_requestbuffers *p); -int vb2_ioctl_create_bufs(struct file *file, void *priv, - struct v4l2_create_buffers *p); -int vb2_ioctl_prepare_buf(struct file *file, void *priv, - struct v4l2_buffer *p); -int vb2_ioctl_querybuf(struct file *file, void *priv, struct v4l2_buffer *p); -int vb2_ioctl_qbuf(struct file *file, void *priv, struct v4l2_buffer *p); -int vb2_ioctl_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p); -int vb2_ioctl_streamon(struct file *file, void *priv, enum v4l2_buf_type i); -int vb2_ioctl_streamoff(struct file *file, void *priv, enum v4l2_buf_type i); -int vb2_ioctl_expbuf(struct file *file, void *priv, - struct v4l2_exportbuffer *p); - -/* struct v4l2_file_operations helpers */ - -int vb2_fop_mmap(struct file *file, struct vm_area_struct *vma); -int vb2_fop_release(struct file *file); -int _vb2_fop_release(struct file *file, struct mutex *lock); -ssize_t vb2_fop_write(struct file *file, const char __user *buf, - size_t count, loff_t *ppos); -ssize_t vb2_fop_read(struct file *file, char __user *buf, - size_t count, loff_t *ppos); -unsigned int vb2_fop_poll(struct file *file, poll_table *wait); -#ifndef CONFIG_MMU -unsigned long vb2_fop_get_unmapped_area(struct file *file, unsigned long addr, - unsigned long len, unsigned long pgoff, unsigned long flags); -#endif - -/* struct vb2_ops helpers, only use if vq->lock is non-NULL. */ - -void vb2_ops_wait_prepare(struct vb2_queue *vq); -void vb2_ops_wait_finish(struct vb2_queue *vq); - #endif /* _MEDIA_VIDEOBUF2_CORE_H */ diff --git a/include/media/videobuf2-dvb.h b/include/media/videobuf2-dvb.h index 8f61456f1394..5b64c9eac2c9 100644 --- a/include/media/videobuf2-dvb.h +++ b/include/media/videobuf2-dvb.h @@ -6,7 +6,13 @@ #include #include #include -#include + +#include +/* + * TODO: This header file should be replaced with videobuf2-core.h + * Currently, vb2_thread is not a stuff of videobuf2-core, + * since vb2_thread has many dependencies on videobuf2-v4l2. + */ struct vb2_dvb { /* filling that the job of the driver */ diff --git a/include/media/videobuf2-v4l2.h b/include/media/videobuf2-v4l2.h index 9d10e3ae1e3d..5abab1e7c7e8 100644 --- a/include/media/videobuf2-v4l2.h +++ b/include/media/videobuf2-v4l2.h @@ -50,4 +50,100 @@ struct vb2_v4l2_buffer { #define to_vb2_v4l2_buffer(vb) \ container_of(vb, struct vb2_v4l2_buffer, vb2_buf) +int vb2_querybuf(struct vb2_queue *q, struct v4l2_buffer *b); +int vb2_reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req); + +int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create); +int vb2_prepare_buf(struct vb2_queue *q, struct v4l2_buffer *b); + +int vb2_qbuf(struct vb2_queue *q, struct v4l2_buffer *b); +int vb2_expbuf(struct vb2_queue *q, struct v4l2_exportbuffer *eb); +int vb2_dqbuf(struct vb2_queue *q, struct v4l2_buffer *b, bool nonblocking); + +int vb2_streamon(struct vb2_queue *q, enum v4l2_buf_type type); +int vb2_streamoff(struct vb2_queue *q, enum v4l2_buf_type type); + +int __must_check vb2_queue_init(struct vb2_queue *q); +void vb2_queue_release(struct vb2_queue *q); + +unsigned int vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait); +size_t vb2_read(struct vb2_queue *q, char __user *data, size_t count, + loff_t *ppos, int nonblock); +size_t vb2_write(struct vb2_queue *q, const char __user *data, size_t count, + loff_t *ppos, int nonblock); + +/* + * vb2_thread_fnc - callback function for use with vb2_thread + * + * This is called whenever a buffer is dequeued in the thread. + */ +typedef int (*vb2_thread_fnc)(struct vb2_buffer *vb, void *priv); + +/** + * vb2_thread_start() - start a thread for the given queue. + * @q: videobuf queue + * @fnc: callback function + * @priv: priv pointer passed to the callback function + * @thread_name:the name of the thread. This will be prefixed with "vb2-". + * + * This starts a thread that will queue and dequeue until an error occurs + * or @vb2_thread_stop is called. + * + * This function should not be used for anything else but the videobuf2-dvb + * support. If you think you have another good use-case for this, then please + * contact the linux-media mailinglist first. + */ +int vb2_thread_start(struct vb2_queue *q, vb2_thread_fnc fnc, void *priv, + const char *thread_name); + +/** + * vb2_thread_stop() - stop the thread for the given queue. + * @q: videobuf queue + */ +int vb2_thread_stop(struct vb2_queue *q); + +/* + * The following functions are not part of the vb2 core API, but are simple + * helper functions that you can use in your struct v4l2_file_operations, + * struct v4l2_ioctl_ops and struct vb2_ops. They will serialize if vb2_queue->lock + * or video_device->lock is set, and they will set and test vb2_queue->owner + * to check if the calling filehandle is permitted to do the queuing operation. + */ + +/* struct v4l2_ioctl_ops helpers */ + +int vb2_ioctl_reqbufs(struct file *file, void *priv, + struct v4l2_requestbuffers *p); +int vb2_ioctl_create_bufs(struct file *file, void *priv, + struct v4l2_create_buffers *p); +int vb2_ioctl_prepare_buf(struct file *file, void *priv, + struct v4l2_buffer *p); +int vb2_ioctl_querybuf(struct file *file, void *priv, struct v4l2_buffer *p); +int vb2_ioctl_qbuf(struct file *file, void *priv, struct v4l2_buffer *p); +int vb2_ioctl_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p); +int vb2_ioctl_streamon(struct file *file, void *priv, enum v4l2_buf_type i); +int vb2_ioctl_streamoff(struct file *file, void *priv, enum v4l2_buf_type i); +int vb2_ioctl_expbuf(struct file *file, void *priv, + struct v4l2_exportbuffer *p); + +/* struct v4l2_file_operations helpers */ + +int vb2_fop_mmap(struct file *file, struct vm_area_struct *vma); +int vb2_fop_release(struct file *file); +int _vb2_fop_release(struct file *file, struct mutex *lock); +ssize_t vb2_fop_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos); +ssize_t vb2_fop_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos); +unsigned int vb2_fop_poll(struct file *file, poll_table *wait); +#ifndef CONFIG_MMU +unsigned long vb2_fop_get_unmapped_area(struct file *file, unsigned long addr, + unsigned long len, unsigned long pgoff, unsigned long flags); +#endif + +/* struct vb2_ops helpers, only use if vq->lock is non-NULL. */ + +void vb2_ops_wait_prepare(struct vb2_queue *vq); +void vb2_ops_wait_finish(struct vb2_queue *vq); + #endif /* _MEDIA_VIDEOBUF2_V4L2_H */ -- cgit v1.2.3