drivers/media/pci/intel/ipu6/ipu6-isys-video.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /* Copyright (C) 2013--2024 Intel Corporation */
   3
   4 #ifndef IPU6_ISYS_VIDEO_H
   5 #define IPU6_ISYS_VIDEO_H
   6
   7 #include <linux/atomic.h>
   8 #include <linux/completion.h>
   9 #include <linux/container_of.h>
  10 #include <linux/list.h>
  11 #include <linux/mutex.h>
  12
  13 #include <media/media-entity.h>
  14 #include <media/v4l2-dev.h>
  15
  16 #include "ipu6-isys-queue.h"
  17
  18 #define IPU6_ISYS_OUTPUT_PINS 11
  19 #define IPU6_ISYS_MAX_PARALLEL_SOF 2
  20
  21 struct file;
  22 struct ipu6_isys;
  23 struct ipu6_isys_csi2;
  24 struct ipu6_isys_subdev;
  25
  26 struct ipu6_isys_pixelformat {
  27         u32 pixelformat;
  28         u32 bpp;
  29         u32 bpp_packed;
  30         u32 code;
  31         u32 css_pixelformat;
  32         bool is_meta;
  33 };
  34
  35 struct sequence_info {
  36         unsigned int sequence;
  37         u64 timestamp;
  38 };
  39
  40 struct output_pin_data {
  41         void (*pin_ready)(struct ipu6_isys_stream *stream,
  42                           struct ipu6_fw_isys_resp_info_abi *info);
  43         struct ipu6_isys_queue *aq;
  44 };
  45
  46 /*
  47  * Align with firmware stream. Each stream represents a CSI virtual channel.
  48  * May map to multiple video devices
  49  */
  50 struct ipu6_isys_stream {
  51         struct mutex mutex;
  52         struct media_entity *source_entity;
  53         atomic_t sequence;
  54         unsigned int seq_index;
  55         struct sequence_info seq[IPU6_ISYS_MAX_PARALLEL_SOF];
  56         int stream_source;
  57         int stream_handle;
  58         unsigned int nr_output_pins;
  59         struct ipu6_isys_subdev *asd;
  60
  61         int nr_queues;  /* Number of capture queues */
  62         int nr_streaming;
  63         int streaming;  /* Has streaming been really started? */
  64         struct list_head queues;
  65         struct completion stream_open_completion;
  66         struct completion stream_close_completion;
  67         struct completion stream_start_completion;
  68         struct completion stream_stop_completion;
  69         struct ipu6_isys *isys;
  70
  71         struct output_pin_data output_pins[IPU6_ISYS_OUTPUT_PINS];
  72         int error;
  73         u8 vc;
  74 };
  75
  76 struct video_stream_watermark {
  77         u32 width;
  78         u32 height;
  79         u32 hblank;
  80         u32 frame_rate;
  81         u64 pixel_rate;
  82         u64 stream_data_rate;
  83         u16 sram_gran_shift;
  84         u16 sram_gran_size;
  85         struct list_head stream_node;
  86 };
  87
  88 struct ipu6_isys_video {
  89         struct ipu6_isys_queue aq;
  90         /* Serialise access to other fields in the struct. */
  91         struct mutex mutex;
  92         struct media_pad pad;
  93         struct video_device vdev;
  94         struct v4l2_pix_format pix_fmt;
  95         struct v4l2_meta_format meta_fmt;
  96         struct ipu6_isys *isys;
  97         struct ipu6_isys_csi2 *csi2;
  98         struct ipu6_isys_stream *stream;
  99         unsigned int streaming;
 100         struct video_stream_watermark watermark;
 101         u32 source_stream;
 102         u8 vc;
 103         u8 dt;
 104 };
 105
 106 #define ipu6_isys_queue_to_video(__aq) \
 107         container_of(__aq, struct ipu6_isys_video, aq)
 108
 109 extern const struct ipu6_isys_pixelformat ipu6_isys_pfmts[];
 110 extern const struct ipu6_isys_pixelformat ipu6_isys_pfmts_packed[];
 111
 112 const struct ipu6_isys_pixelformat *
 113 ipu6_isys_get_isys_format(u32 pixelformat, u32 code);
 114 int ipu6_isys_video_prepare_stream(struct ipu6_isys_video *av,
 115                                    struct media_entity *source_entity,
 116                                    int nr_queues);
 117 int ipu6_isys_video_set_streaming(struct ipu6_isys_video *av, int state,
 118                                   struct ipu6_isys_buffer_list *bl);
 119 int ipu6_isys_fw_open(struct ipu6_isys *isys);
 120 void ipu6_isys_fw_close(struct ipu6_isys *isys);
 121 int ipu6_isys_setup_video(struct ipu6_isys_video *av,
 122                           struct media_entity **source_entity, int *nr_queues);
 123 int ipu6_isys_video_init(struct ipu6_isys_video *av);
 124 void ipu6_isys_video_cleanup(struct ipu6_isys_video *av);
 125 void ipu6_isys_put_stream(struct ipu6_isys_stream *stream);
 126 struct ipu6_isys_stream *
 127 ipu6_isys_query_stream_by_handle(struct ipu6_isys *isys, u8 stream_handle);
 128 struct ipu6_isys_stream *
 129 ipu6_isys_query_stream_by_source(struct ipu6_isys *isys, int source, u8 vc);
 130
 131 void ipu6_isys_configure_stream_watermark(struct ipu6_isys_video *av,
 132                                           bool state);
 133 void ipu6_isys_update_stream_watermark(struct ipu6_isys_video *av, bool state);
 134
 135 u32 ipu6_isys_get_format(struct ipu6_isys_video *av);
 136 u32 ipu6_isys_get_data_size(struct ipu6_isys_video *av);
 137 u32 ipu6_isys_get_bytes_per_line(struct ipu6_isys_video *av);
 138 u32 ipu6_isys_get_frame_width(struct ipu6_isys_video *av);
 139 u32 ipu6_isys_get_frame_height(struct ipu6_isys_video *av);
 140
 141 #endif /* IPU6_ISYS_VIDEO_H */