diff options
Diffstat (limited to 'drivers/media/pci/intel/ipu6/ipu6-isys-video.h')
| -rw-r--r-- | drivers/media/pci/intel/ipu6/ipu6-isys-video.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/media/pci/intel/ipu6/ipu6-isys-video.h b/drivers/media/pci/intel/ipu6/ipu6-isys-video.h new file mode 100644 index 000000000000..1d945be2b879 --- /dev/null +++ b/drivers/media/pci/intel/ipu6/ipu6-isys-video.h @@ -0,0 +1,141 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* Copyright (C) 2013--2024 Intel Corporation */ + +#ifndef IPU6_ISYS_VIDEO_H +#define IPU6_ISYS_VIDEO_H + +#include <linux/atomic.h> +#include <linux/completion.h> +#include <linux/container_of.h> +#include <linux/list.h> +#include <linux/mutex.h> + +#include <media/media-entity.h> +#include <media/v4l2-dev.h> + +#include "ipu6-isys-queue.h" + +#define IPU6_ISYS_OUTPUT_PINS 11 +#define IPU6_ISYS_MAX_PARALLEL_SOF 2 + +struct file; +struct ipu6_isys; +struct ipu6_isys_csi2; +struct ipu6_isys_subdev; + +struct ipu6_isys_pixelformat { + u32 pixelformat; + u32 bpp; + u32 bpp_packed; + u32 code; + u32 css_pixelformat; + bool is_meta; +}; + +struct sequence_info { + unsigned int sequence; + u64 timestamp; +}; + +struct output_pin_data { + void (*pin_ready)(struct ipu6_isys_stream *stream, + struct ipu6_fw_isys_resp_info_abi *info); + struct ipu6_isys_queue *aq; +}; + +/* + * Align with firmware stream. Each stream represents a CSI virtual channel. + * May map to multiple video devices + */ +struct ipu6_isys_stream { + struct mutex mutex; + struct media_entity *source_entity; + atomic_t sequence; + unsigned int seq_index; + struct sequence_info seq[IPU6_ISYS_MAX_PARALLEL_SOF]; + int stream_source; + int stream_handle; + unsigned int nr_output_pins; + struct ipu6_isys_subdev *asd; + + int nr_queues; /* Number of capture queues */ + int nr_streaming; + int streaming; /* Has streaming been really started? */ + struct list_head queues; + struct completion stream_open_completion; + struct completion stream_close_completion; + struct completion stream_start_completion; + struct completion stream_stop_completion; + struct ipu6_isys *isys; + + struct output_pin_data output_pins[IPU6_ISYS_OUTPUT_PINS]; + int error; + u8 vc; +}; + +struct video_stream_watermark { + u32 width; + u32 height; + u32 hblank; + u32 frame_rate; + u64 pixel_rate; + u64 stream_data_rate; + u16 sram_gran_shift; + u16 sram_gran_size; + struct list_head stream_node; +}; + +struct ipu6_isys_video { + struct ipu6_isys_queue aq; + /* Serialise access to other fields in the struct. */ + struct mutex mutex; + struct media_pad pad; + struct video_device vdev; + struct v4l2_pix_format pix_fmt; + struct v4l2_meta_format meta_fmt; + struct ipu6_isys *isys; + struct ipu6_isys_csi2 *csi2; + struct ipu6_isys_stream *stream; + unsigned int streaming; + struct video_stream_watermark watermark; + u32 source_stream; + u8 vc; + u8 dt; +}; + +#define ipu6_isys_queue_to_video(__aq) \ + container_of(__aq, struct ipu6_isys_video, aq) + +extern const struct ipu6_isys_pixelformat ipu6_isys_pfmts[]; +extern const struct ipu6_isys_pixelformat ipu6_isys_pfmts_packed[]; + +const struct ipu6_isys_pixelformat * +ipu6_isys_get_isys_format(u32 pixelformat, u32 code); +int ipu6_isys_video_prepare_stream(struct ipu6_isys_video *av, + struct media_entity *source_entity, + int nr_queues); +int ipu6_isys_video_set_streaming(struct ipu6_isys_video *av, int state, + struct ipu6_isys_buffer_list *bl); +int ipu6_isys_fw_open(struct ipu6_isys *isys); +void ipu6_isys_fw_close(struct ipu6_isys *isys); +int ipu6_isys_setup_video(struct ipu6_isys_video *av, + struct media_entity **source_entity, int *nr_queues); +int ipu6_isys_video_init(struct ipu6_isys_video *av); +void ipu6_isys_video_cleanup(struct ipu6_isys_video *av); +void ipu6_isys_put_stream(struct ipu6_isys_stream *stream); +struct ipu6_isys_stream * +ipu6_isys_query_stream_by_handle(struct ipu6_isys *isys, u8 stream_handle); +struct ipu6_isys_stream * +ipu6_isys_query_stream_by_source(struct ipu6_isys *isys, int source, u8 vc); + +void ipu6_isys_configure_stream_watermark(struct ipu6_isys_video *av, + bool state); +void ipu6_isys_update_stream_watermark(struct ipu6_isys_video *av, bool state); + +u32 ipu6_isys_get_format(struct ipu6_isys_video *av); +u32 ipu6_isys_get_data_size(struct ipu6_isys_video *av); +u32 ipu6_isys_get_bytes_per_line(struct ipu6_isys_video *av); +u32 ipu6_isys_get_frame_width(struct ipu6_isys_video *av); +u32 ipu6_isys_get_frame_height(struct ipu6_isys_video *av); + +#endif /* IPU6_ISYS_VIDEO_H */ |