diff options
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-mem2mem.c | 37 | ||||
| -rw-r--r-- | include/media/v4l2-mem2mem.h | 92 |
2 files changed, 129 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c index 6bc27e7b2a33..f62e68aa04c4 100644 --- a/drivers/media/v4l2-core/v4l2-mem2mem.c +++ b/drivers/media/v4l2-core/v4l2-mem2mem.c @@ -126,6 +126,43 @@ void *v4l2_m2m_buf_remove(struct v4l2_m2m_queue_ctx *q_ctx) } EXPORT_SYMBOL_GPL(v4l2_m2m_buf_remove); +void v4l2_m2m_buf_remove_by_buf(struct v4l2_m2m_queue_ctx *q_ctx, + struct vb2_v4l2_buffer *vbuf) +{ + struct v4l2_m2m_buffer *b; + unsigned long flags; + + spin_lock_irqsave(&q_ctx->rdy_spinlock, flags); + b = container_of(vbuf, struct v4l2_m2m_buffer, vb); + list_del(&b->list); + q_ctx->num_rdy--; + spin_unlock_irqrestore(&q_ctx->rdy_spinlock, flags); +} +EXPORT_SYMBOL_GPL(v4l2_m2m_buf_remove_by_buf); + +struct vb2_v4l2_buffer * +v4l2_m2m_buf_remove_by_idx(struct v4l2_m2m_queue_ctx *q_ctx, unsigned int idx) + +{ + struct v4l2_m2m_buffer *b, *tmp; + struct vb2_v4l2_buffer *ret = NULL; + unsigned long flags; + + spin_lock_irqsave(&q_ctx->rdy_spinlock, flags); + list_for_each_entry_safe(b, tmp, &q_ctx->rdy_queue, list) { + if (b->vb.vb2_buf.index == idx) { + list_del(&b->list); + q_ctx->num_rdy--; + ret = &b->vb; + break; + } + } + spin_unlock_irqrestore(&q_ctx->rdy_spinlock, flags); + + return ret; +} +EXPORT_SYMBOL_GPL(v4l2_m2m_buf_remove_by_idx); + /* * Scheduling handlers */ diff --git a/include/media/v4l2-mem2mem.h b/include/media/v4l2-mem2mem.h index 3ccd01bd245e..e157d5c9b224 100644 --- a/include/media/v4l2-mem2mem.h +++ b/include/media/v4l2-mem2mem.h @@ -437,6 +437,47 @@ static inline void *v4l2_m2m_next_dst_buf(struct v4l2_m2m_ctx *m2m_ctx) } /** + * v4l2_m2m_for_each_dst_buf() - iterate over a list of destination ready + * buffers + * + * @m2m_ctx: m2m context assigned to the instance given by struct &v4l2_m2m_ctx + * @b: current buffer of type struct v4l2_m2m_buffer + */ +#define v4l2_m2m_for_each_dst_buf(m2m_ctx, b) \ + list_for_each_entry(b, &m2m_ctx->cap_q_ctx.rdy_queue, list) + +/** + * v4l2_m2m_for_each_src_buf() - iterate over a list of source ready buffers + * + * @m2m_ctx: m2m context assigned to the instance given by struct &v4l2_m2m_ctx + * @b: current buffer of type struct v4l2_m2m_buffer + */ +#define v4l2_m2m_for_each_src_buf(m2m_ctx, b) \ + list_for_each_entry(b, &m2m_ctx->out_q_ctx.rdy_queue, list) + +/** + * v4l2_m2m_for_each_dst_buf_safe() - iterate over a list of destination ready + * buffers safely + * + * @m2m_ctx: m2m context assigned to the instance given by struct &v4l2_m2m_ctx + * @b: current buffer of type struct v4l2_m2m_buffer + * @n: used as temporary storage + */ +#define v4l2_m2m_for_each_dst_buf_safe(m2m_ctx, b, n) \ + list_for_each_entry_safe(b, n, &m2m_ctx->cap_q_ctx.rdy_queue, list) + +/** + * v4l2_m2m_for_each_src_buf_safe() - iterate over a list of source ready + * buffers safely + * + * @m2m_ctx: m2m context assigned to the instance given by struct &v4l2_m2m_ctx + * @b: current buffer of type struct v4l2_m2m_buffer + * @n: used as temporary storage + */ +#define v4l2_m2m_for_each_src_buf_safe(m2m_ctx, b, n) \ + list_for_each_entry_safe(b, n, &m2m_ctx->out_q_ctx.rdy_queue, list) + +/** * v4l2_m2m_get_src_vq() - return vb2_queue for source buffers * * @m2m_ctx: m2m context assigned to the instance given by struct &v4l2_m2m_ctx @@ -488,6 +529,57 @@ static inline void *v4l2_m2m_dst_buf_remove(struct v4l2_m2m_ctx *m2m_ctx) return v4l2_m2m_buf_remove(&m2m_ctx->cap_q_ctx); } +/** + * v4l2_m2m_buf_remove_by_buf() - take off exact buffer from the list of ready + * buffers + * + * @q_ctx: pointer to struct @v4l2_m2m_queue_ctx + * @vbuf: the buffer to be removed + */ +void v4l2_m2m_buf_remove_by_buf(struct v4l2_m2m_queue_ctx *q_ctx, + struct vb2_v4l2_buffer *vbuf); + +/** + * v4l2_m2m_src_buf_remove_by_buf() - take off exact source buffer from the list + * of ready buffers + * + * @m2m_ctx: m2m context assigned to the instance given by struct &v4l2_m2m_ctx + * @vbuf: the buffer to be removed + */ +static inline void v4l2_m2m_src_buf_remove_by_buf(struct v4l2_m2m_ctx *m2m_ctx, + struct vb2_v4l2_buffer *vbuf) +{ + v4l2_m2m_buf_remove_by_buf(&m2m_ctx->out_q_ctx, vbuf); +} + +/** + * v4l2_m2m_dst_buf_remove_by_buf() - take off exact destination buffer from the + * list of ready buffers + * + * @m2m_ctx: m2m context assigned to the instance given by struct &v4l2_m2m_ctx + * @vbuf: the buffer to be removed + */ +static inline void v4l2_m2m_dst_buf_remove_by_buf(struct v4l2_m2m_ctx *m2m_ctx, + struct vb2_v4l2_buffer *vbuf) +{ + v4l2_m2m_buf_remove_by_buf(&m2m_ctx->cap_q_ctx, vbuf); +} + +struct vb2_v4l2_buffer * +v4l2_m2m_buf_remove_by_idx(struct v4l2_m2m_queue_ctx *q_ctx, unsigned int idx); + +static inline struct vb2_v4l2_buffer * +v4l2_m2m_src_buf_remove_by_idx(struct v4l2_m2m_ctx *m2m_ctx, unsigned int idx) +{ + return v4l2_m2m_buf_remove_by_idx(&m2m_ctx->out_q_ctx, idx); +} + +static inline struct vb2_v4l2_buffer * +v4l2_m2m_dst_buf_remove_by_idx(struct v4l2_m2m_ctx *m2m_ctx, unsigned int idx) +{ + return v4l2_m2m_buf_remove_by_idx(&m2m_ctx->cap_q_ctx, idx); +} + /* v4l2 ioctl helpers */ int v4l2_m2m_ioctl_reqbufs(struct file *file, void *priv, |