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Diffstat (limited to 'include/media/vsp1.h')
| -rw-r--r-- | include/media/vsp1.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/include/media/vsp1.h b/include/media/vsp1.h new file mode 100644 index 000000000..5b383d01c --- /dev/null +++ b/include/media/vsp1.h @@ -0,0 +1,105 @@ +/* + * vsp1.h -- R-Car VSP1 API + * + * Copyright (C) 2015 Renesas Electronics Corporation + * + * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ +#ifndef __MEDIA_VSP1_H__ +#define __MEDIA_VSP1_H__ + +#include <linux/scatterlist.h> +#include <linux/types.h> +#include <linux/videodev2.h> + +struct device; + +int vsp1_du_init(struct device *dev); + +/** + * struct vsp1_du_lif_config - VSP LIF configuration + * @width: output frame width + * @height: output frame height + * @interlaced: true for interlaced pipelines + * @callback: frame completion callback function (optional). When a callback + * is provided, the VSP driver guarantees that it will be called once + * and only once for each vsp1_du_atomic_flush() call. + * @callback_data: data to be passed to the frame completion callback + */ +struct vsp1_du_lif_config { + unsigned int width; + unsigned int height; + bool interlaced; + + void (*callback)(void *data, bool completed, u32 crc); + void *callback_data; +}; + +int vsp1_du_setup_lif(struct device *dev, unsigned int pipe_index, + const struct vsp1_du_lif_config *cfg); + +/** + * struct vsp1_du_atomic_config - VSP atomic configuration parameters + * @pixelformat: plane pixel format (V4L2 4CC) + * @pitch: line pitch in bytes for the first plane + * @mem: DMA memory address for each plane of the frame buffer + * @src: source rectangle in the frame buffer (integer coordinates) + * @dst: destination rectangle on the display (integer coordinates) + * @alpha: alpha value (0: fully transparent, 255: fully opaque) + * @zpos: Z position of the plane (from 0 to number of planes minus 1) + */ +struct vsp1_du_atomic_config { + u32 pixelformat; + unsigned int pitch; + dma_addr_t mem[3]; + struct v4l2_rect src; + struct v4l2_rect dst; + unsigned int alpha; + unsigned int zpos; +}; + +/** + * enum vsp1_du_crc_source - Source used for CRC calculation + * @VSP1_DU_CRC_NONE: CRC calculation disabled + * @VSP1_DU_CRC_PLANE: Perform CRC calculation on an input plane + * @VSP1_DU_CRC_OUTPUT: Perform CRC calculation on the composed output + */ +enum vsp1_du_crc_source { + VSP1_DU_CRC_NONE, + VSP1_DU_CRC_PLANE, + VSP1_DU_CRC_OUTPUT, +}; + +/** + * struct vsp1_du_crc_config - VSP CRC computation configuration parameters + * @source: source for CRC calculation + * @index: index of the CRC source plane (when source is set to plane) + */ +struct vsp1_du_crc_config { + enum vsp1_du_crc_source source; + unsigned int index; +}; + +/** + * struct vsp1_du_atomic_pipe_config - VSP atomic pipe configuration parameters + * @crc: CRC computation configuration + */ +struct vsp1_du_atomic_pipe_config { + struct vsp1_du_crc_config crc; +}; + +void vsp1_du_atomic_begin(struct device *dev, unsigned int pipe_index); +int vsp1_du_atomic_update(struct device *dev, unsigned int pipe_index, + unsigned int rpf, + const struct vsp1_du_atomic_config *cfg); +void vsp1_du_atomic_flush(struct device *dev, unsigned int pipe_index, + const struct vsp1_du_atomic_pipe_config *cfg); +int vsp1_du_map_sg(struct device *dev, struct sg_table *sgt); +void vsp1_du_unmap_sg(struct device *dev, struct sg_table *sgt); + +#endif /* __MEDIA_VSP1_H__ */ |