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

   1 /*
   2  *  Driver for the Conexant CX25821 PCIe bridge
   3  *
   4  *  Copyright (C) 2009 Conexant Systems Inc.
   5  *  Authors  <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
   6  *  Based on Steven Toth <stoth@linuxtv.org> cx23885 driver
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the Free Software
  21  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  */
  23
  24 #ifndef CX25821_VIDEO_H_
  25 #define CX25821_VIDEO_H_
  26
  27 #include <linux/init.h>
  28 #include <linux/list.h>
  29 #include <linux/module.h>
  30 #include <linux/moduleparam.h>
  31 #include <linux/kmod.h>
  32 #include <linux/kernel.h>
  33 #include <linux/slab.h>
  34 #include <linux/interrupt.h>
  35 #include <linux/delay.h>
  36 #include <linux/kthread.h>
  37 #include <asm/div64.h>
  38
  39 #include "cx25821.h"
  40 #include <media/v4l2-common.h>
  41 #include <media/v4l2-ioctl.h>
  42 #include <media/v4l2-event.h>
  43
  44 #define VIDEO_DEBUG 0
  45
  46 #define dprintk(level, fmt, arg...)                                     \
  47 do {                                                                    \
  48         if (VIDEO_DEBUG >= level)                                       \
  49                 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ##arg);      \
  50 } while (0)
  51
  52 #define FORMAT_FLAGS_PACKED       0x01
  53 extern void cx25821_video_wakeup(struct cx25821_dev *dev,
  54                                  struct cx25821_dmaqueue *q, u32 count);
  55
  56 extern int cx25821_start_video_dma(struct cx25821_dev *dev,
  57                                    struct cx25821_dmaqueue *q,
  58                                    struct cx25821_buffer *buf,
  59                                    const struct sram_channel *channel);
  60
  61 extern int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status);
  62 extern void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num);
  63 extern int cx25821_video_register(struct cx25821_dev *dev);
  64
  65 #endif