drivers/media/pci/cx25821/cx25821-video.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *  Driver for the Conexant CX25821 PCIe bridge
   4  *
   5  *  Copyright (C) 2009 Conexant Systems Inc.
   6  *  Authors  <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
   7  *  Based on Steven Toth <stoth@linuxtv.org> cx23885 driver
   8  */
   9
  10 #ifndef CX25821_VIDEO_H_
  11 #define CX25821_VIDEO_H_
  12
  13 #include <linux/init.h>
  14 #include <linux/list.h>
  15 #include <linux/module.h>
  16 #include <linux/moduleparam.h>
  17 #include <linux/kmod.h>
  18 #include <linux/kernel.h>
  19 #include <linux/slab.h>
  20 #include <linux/interrupt.h>
  21 #include <linux/delay.h>
  22 #include <linux/kthread.h>
  23 #include <asm/div64.h>
  24
  25 #include "cx25821.h"
  26 #include <media/v4l2-common.h>
  27 #include <media/v4l2-ioctl.h>
  28 #include <media/v4l2-event.h>
  29
  30 #define VIDEO_DEBUG 0
  31
  32 #define dprintk(level, fmt, arg...)                                     \
  33 do {                                                                    \
  34         if (VIDEO_DEBUG >= level)                                       \
  35                 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ##arg);      \
  36 } while (0)
  37
  38 #define FORMAT_FLAGS_PACKED       0x01
  39 extern void cx25821_video_wakeup(struct cx25821_dev *dev,
  40                                  struct cx25821_dmaqueue *q, u32 count);
  41
  42 extern int cx25821_start_video_dma(struct cx25821_dev *dev,
  43                                    struct cx25821_dmaqueue *q,
  44                                    struct cx25821_buffer *buf,
  45                                    const struct sram_channel *channel);
  46
  47 extern int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status);
  48 extern void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num);
  49 extern int cx25821_video_register(struct cx25821_dev *dev);
  50
  51 #endif