diff options
Diffstat (limited to 'drivers/media/platform/rcar-vin/rcar-vin.h')
| -rw-r--r-- | drivers/media/platform/rcar-vin/rcar-vin.h | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/drivers/media/platform/rcar-vin/rcar-vin.h b/drivers/media/platform/rcar-vin/rcar-vin.h index a36b0824f81d..c19d077ce1cb 100644 --- a/drivers/media/platform/rcar-vin/rcar-vin.h +++ b/drivers/media/platform/rcar-vin/rcar-vin.h @@ -61,6 +61,23 @@ enum rvin_dma_state { }; /** + * enum rvin_buffer_type + * + * Describes how a buffer is given to the hardware. To be able + * to capture SEQ_TB/BT it's needed to capture to the same vb2 + * buffer twice so the type of buffer needs to be kept. + * + * FULL - One capture fills the whole vb2 buffer + * HALF_TOP - One capture fills the top half of the vb2 buffer + * HALF_BOTTOM - One capture fills the bottom half of the vb2 buffer + */ +enum rvin_buffer_type { + FULL, + HALF_TOP, + HALF_BOTTOM, +}; + +/** * struct rvin_video_format - Data format stored in memory * @fourcc: Pixelformat * @bpp: Bytes per pixel @@ -164,9 +181,8 @@ struct rvin_info { * @scratch: cpu address for scratch buffer * @scratch_phys: physical address of the scratch buffer * - * @qlock: protects @queue_buf, @buf_list, @sequence - * @state - * @queue_buf: Keeps track of buffers given to HW slot + * @qlock: protects @buf_hw, @buf_list, @sequence and @state + * @buf_hw: Keeps track of buffers given to HW slot * @buf_list: list of queued buffers * @sequence: V4L2 buffers sequence number * @state: keeps track of operation state @@ -205,7 +221,11 @@ struct rvin_dev { dma_addr_t scratch_phys; spinlock_t qlock; - struct vb2_v4l2_buffer *queue_buf[HW_BUFFER_NUM]; + struct { + struct vb2_v4l2_buffer *buffer; + enum rvin_buffer_type type; + dma_addr_t phys; + } buf_hw[HW_BUFFER_NUM]; struct list_head buf_list; unsigned int sequence; enum rvin_dma_state state; |