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

/*
 *  Driver for the Conexant CX25821 PCIe bridge
 *
 *  Copyright (C) 2009 Conexant Systems Inc.
 *  Authors  <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
 *  Based on Steven Toth <stoth@linuxtv.org> cx23885 driver
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef CX25821_VIDEO_H_
#define CX25821_VIDEO_H_

#include <linux/init.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kmod.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/kthread.h>
#include <asm/div64.h>

#include "cx25821.h"
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>

#define VIDEO_DEBUG 0

#define dprintk(level, fmt, arg...)					\
do {									\
	if (VIDEO_DEBUG >= level)					\
		printk(KERN_DEBUG "%s/0: " fmt, dev->name, ##arg);	\
} while (0)

/* For IOCTL to identify running upstream */
#define UPSTREAM_START_VIDEO        700
#define UPSTREAM_STOP_VIDEO         701
#define UPSTREAM_START_AUDIO        702
#define UPSTREAM_STOP_AUDIO         703
#define UPSTREAM_DUMP_REGISTERS     702
#define SET_VIDEO_STD               800
#define SET_PIXEL_FORMAT            1000
#define ENABLE_CIF_RESOLUTION       1001

#define REG_READ		    900
#define REG_WRITE		    901
#define MEDUSA_READ		    910
#define MEDUSA_WRITE		    911

extern unsigned int vid_limit;

#define FORMAT_FLAGS_PACKED       0x01
extern struct cx25821_fmt formats[];
extern struct cx25821_fmt *cx25821_format_by_fourcc(unsigned int fourcc);
extern struct cx25821_data timeout_data[MAX_VID_CHANNEL_NUM];

extern void cx25821_video_wakeup(struct cx25821_dev *dev,
				 struct cx25821_dmaqueue *q, u32 count);

extern int cx25821_set_tvnorm(struct cx25821_dev *dev, v4l2_std_id norm);

extern int cx25821_res_get(struct cx25821_dev *dev, struct cx25821_fh *fh,
			   unsigned int bit);
extern int cx25821_res_check(struct cx25821_fh *fh, unsigned int bit);
extern int cx25821_res_locked(struct cx25821_fh *fh, unsigned int bit);
extern void cx25821_res_free(struct cx25821_dev *dev, struct cx25821_fh *fh,
			     unsigned int bits);
extern int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input);
extern int cx25821_start_video_dma(struct cx25821_dev *dev,
				   struct cx25821_dmaqueue *q,
				   struct cx25821_buffer *buf,
				   const struct sram_channel *channel);

extern int cx25821_set_scale(struct cx25821_dev *dev, unsigned int width,
			     unsigned int height, enum v4l2_field field);
extern int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status);
extern void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num);
extern int cx25821_video_register(struct cx25821_dev *dev);
extern int cx25821_get_format_size(void);

extern int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count,
				unsigned int *size);
extern int cx25821_buffer_prepare(struct videobuf_queue *q,
				  struct videobuf_buffer *vb,
				  enum v4l2_field field);
extern void cx25821_buffer_release(struct videobuf_queue *q,
				   struct videobuf_buffer *vb);
extern struct videobuf_queue *get_queue(struct cx25821_fh *fh);
extern int cx25821_get_resource(struct cx25821_fh *fh, int resource);
extern int cx25821_video_mmap(struct file *file, struct vm_area_struct *vma);
extern int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv,
					  struct v4l2_format *f);
extern int cx25821_vidioc_querycap(struct file *file, void *priv,
				   struct v4l2_capability *cap);
extern int cx25821_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
					   struct v4l2_fmtdesc *f);
extern int cx25821_vidioc_reqbufs(struct file *file, void *priv,
				  struct v4l2_requestbuffers *p);
extern int cx25821_vidioc_querybuf(struct file *file, void *priv,
				   struct v4l2_buffer *p);
extern int cx25821_vidioc_qbuf(struct file *file, void *priv,
			       struct v4l2_buffer *p);
extern int cx25821_vidioc_s_std(struct file *file, void *priv,
				v4l2_std_id tvnorms);
extern int cx25821_enum_input(struct cx25821_dev *dev, struct v4l2_input *i);
extern int cx25821_vidioc_enum_input(struct file *file, void *priv,
				     struct v4l2_input *i);
extern int cx25821_vidioc_g_input(struct file *file, void *priv,
				  unsigned int *i);
extern int cx25821_vidioc_s_input(struct file *file, void *priv,
				  unsigned int i);
extern int cx25821_vidioc_g_ctrl(struct file *file, void *priv,
				 struct v4l2_control *ctl);
extern int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv,
					struct v4l2_format *f);
extern int cx25821_vidioc_g_register(struct file *file, void *fh,
				     struct v4l2_dbg_register *reg);
extern int cx25821_vidioc_s_register(struct file *file, void *fh,
				     const struct v4l2_dbg_register *reg);

extern int cx25821_is_valid_width(u32 width, v4l2_std_id tvnorm);
extern int cx25821_is_valid_height(u32 height, v4l2_std_id tvnorm);

extern int cx25821_vidioc_g_priority(struct file *file, void *f,
				     enum v4l2_priority *p);
extern int cx25821_vidioc_s_priority(struct file *file, void *f,
				     enum v4l2_priority prio);

extern int cx25821_vidioc_queryctrl(struct file *file, void *priv,
				    struct v4l2_queryctrl *qctrl);
extern int cx25821_set_control(struct cx25821_dev *dev,
			       struct v4l2_control *ctrl, int chan_num);

extern int cx25821_vidioc_cropcap(struct file *file, void *fh,
				  struct v4l2_cropcap *cropcap);
extern int cx25821_vidioc_s_crop(struct file *file, void *priv,
				 const struct v4l2_crop *crop);
extern int cx25821_vidioc_g_crop(struct file *file, void *priv,
				 struct v4l2_crop *crop);

extern int cx25821_vidioc_querystd(struct file *file, void *priv,
				   v4l2_std_id *norm);
#endif