drivers/media/pci/mgb4/mgb4_vin.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (C) 2021-2023 Digiteq Automotive
   4  *     author: Martin Tuma <martin.tuma@digiteqautomotive.com>
   5  */
   6
   7 #ifndef __MGB4_VIN_H__
   8 #define __MGB4_VIN_H__
   9
  10 #include <media/v4l2-device.h>
  11 #include <media/v4l2-dev.h>
  12 #include <media/v4l2-ctrls.h>
  13 #include <media/videobuf2-core.h>
  14 #include <linux/debugfs.h>
  15 #include "mgb4_i2c.h"
  16
  17 struct mgb4_vin_regs {
  18         u32 address;
  19         u32 config;
  20         u32 status;
  21         u32 resolution;
  22         u32 frame_period;
  23         u32 sync;
  24         u32 pclk;
  25         u32 signal;
  26         u32 signal2;
  27         u32 padding;
  28         u32 timer;
  29 };
  30
  31 struct mgb4_vin_config {
  32         int id;
  33         int dma_channel;
  34         int vin_irq;
  35         int err_irq;
  36         struct mgb4_vin_regs regs;
  37 };
  38
  39 struct mgb4_vin_dev {
  40         struct mgb4_dev *mgbdev;
  41         struct v4l2_device v4l2dev;
  42         struct video_device vdev;
  43         struct vb2_queue queue;
  44         struct mutex lock; /* vdev lock */
  45
  46         spinlock_t qlock; /* video buffer queue lock */
  47         struct list_head buf_list;
  48         struct work_struct dma_work, err_work;
  49
  50         unsigned int sequence;
  51
  52         struct v4l2_dv_timings timings;
  53         u32 freq_range;
  54         u32 padding;
  55
  56         struct mgb4_i2c_client deser;
  57
  58         const struct mgb4_vin_config *config;
  59
  60 #ifdef CONFIG_DEBUG_FS
  61         struct debugfs_regset32 regset;
  62         struct debugfs_reg32 regs[sizeof(struct mgb4_vin_regs) / 4];
  63 #endif
  64 };
  65
  66 struct mgb4_vin_dev *mgb4_vin_create(struct mgb4_dev *mgbdev, int id);
  67 void mgb4_vin_free(struct mgb4_vin_dev *vindev);
  68
  69 #endif