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

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /* Copyright (C) 2013--2024 Intel Corporation */
   3
   4 #ifndef IPU6_ISYS_QUEUE_H
   5 #define IPU6_ISYS_QUEUE_H
   6
   7 #include <linux/container_of.h>
   8 #include <linux/atomic.h>
   9 #include <linux/device.h>
  10 #include <linux/list.h>
  11 #include <linux/spinlock_types.h>
  12
  13 #include <media/videobuf2-v4l2.h>
  14
  15 #include "ipu6-fw-isys.h"
  16 #include "ipu6-isys-video.h"
  17
  18 struct ipu6_isys_stream;
  19
  20 struct ipu6_isys_queue {
  21         struct vb2_queue vbq;
  22         struct list_head node;
  23         struct device *dev;
  24         /*
  25          * @lock: serialise access to queued and pre_streamon_queued
  26          */
  27         spinlock_t lock;
  28         struct list_head active;
  29         struct list_head incoming;
  30         unsigned int fw_output;
  31 };
  32
  33 struct ipu6_isys_buffer {
  34         struct list_head head;
  35         atomic_t str2mmio_flag;
  36 };
  37
  38 struct ipu6_isys_video_buffer {
  39         struct vb2_v4l2_buffer vb_v4l2;
  40         struct ipu6_isys_buffer ib;
  41         dma_addr_t dma_addr;
  42 };
  43
  44 #define IPU6_ISYS_BUFFER_LIST_FL_INCOMING       BIT(0)
  45 #define IPU6_ISYS_BUFFER_LIST_FL_ACTIVE BIT(1)
  46 #define IPU6_ISYS_BUFFER_LIST_FL_SET_STATE      BIT(2)
  47
  48 struct ipu6_isys_buffer_list {
  49         struct list_head head;
  50         unsigned int nbufs;
  51 };
  52
  53 #define vb2_queue_to_isys_queue(__vb2) \
  54         container_of(__vb2, struct ipu6_isys_queue, vbq)
  55
  56 #define ipu6_isys_to_isys_video_buffer(__ib) \
  57         container_of(__ib, struct ipu6_isys_video_buffer, ib)
  58
  59 #define vb2_buffer_to_ipu6_isys_video_buffer(__vvb) \
  60         container_of(__vvb, struct ipu6_isys_video_buffer, vb_v4l2)
  61
  62 #define ipu6_isys_buffer_to_vb2_buffer(__ib) \
  63         (&ipu6_isys_to_isys_video_buffer(__ib)->vb_v4l2.vb2_buf)
  64
  65 void ipu6_isys_buffer_list_queue(struct ipu6_isys_buffer_list *bl,
  66                                  unsigned long op_flags,
  67                                  enum vb2_buffer_state state);
  68 void
  69 ipu6_isys_buf_to_fw_frame_buf(struct ipu6_fw_isys_frame_buff_set_abi *set,
  70                               struct ipu6_isys_stream *stream,
  71                               struct ipu6_isys_buffer_list *bl);
  72 void
  73 ipu6_isys_buf_calc_sequence_time(struct ipu6_isys_buffer *ib,
  74                                  struct ipu6_fw_isys_resp_info_abi *info);
  75 void ipu6_isys_queue_buf_done(struct ipu6_isys_buffer *ib);
  76 void ipu6_isys_queue_buf_ready(struct ipu6_isys_stream *stream,
  77                                struct ipu6_fw_isys_resp_info_abi *info);
  78 int ipu6_isys_queue_init(struct ipu6_isys_queue *aq);
  79 #endif /* IPU6_ISYS_QUEUE_H */