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4f996594ce
Write-only ioctls should have a const argument in the ioctl op. Do this conversion for vidioc_s_crop. Adding const for write-only ioctls was decided during the 2012 Media Workshop. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
187 lines
7.2 KiB
C
187 lines
7.2 KiB
C
/*
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* Driver for the Conexant CX25821 PCIe bridge
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*
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* Copyright (C) 2009 Conexant Systems Inc.
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* Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
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* Based on Steven Toth <stoth@linuxtv.org> cx23885 driver
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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*
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef CX25821_VIDEO_H_
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#define CX25821_VIDEO_H_
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#include <linux/init.h>
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#include <linux/list.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kmod.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <linux/kthread.h>
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#include <asm/div64.h>
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#include "cx25821.h"
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#include <media/v4l2-common.h>
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#include <media/v4l2-ioctl.h>
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#define TUNER_FLAG
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#define VIDEO_DEBUG 0
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#define dprintk(level, fmt, arg...) \
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do { \
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if (VIDEO_DEBUG >= level) \
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printk(KERN_DEBUG "%s/0: " fmt, dev->name, ##arg); \
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} while (0)
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/* For IOCTL to identify running upstream */
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#define UPSTREAM_START_VIDEO 700
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#define UPSTREAM_STOP_VIDEO 701
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#define UPSTREAM_START_AUDIO 702
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#define UPSTREAM_STOP_AUDIO 703
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#define UPSTREAM_DUMP_REGISTERS 702
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#define SET_VIDEO_STD 800
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#define SET_PIXEL_FORMAT 1000
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#define ENABLE_CIF_RESOLUTION 1001
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#define REG_READ 900
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#define REG_WRITE 901
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#define MEDUSA_READ 910
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#define MEDUSA_WRITE 911
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extern struct sram_channel *channel0;
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extern struct sram_channel *channel1;
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extern struct sram_channel *channel2;
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extern struct sram_channel *channel3;
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extern struct sram_channel *channel4;
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extern struct sram_channel *channel5;
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extern struct sram_channel *channel6;
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extern struct sram_channel *channel7;
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extern struct sram_channel *channel9;
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extern struct sram_channel *channel10;
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extern struct sram_channel *channel11;
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extern struct video_device cx25821_videoioctl_template;
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/* extern const u32 *ctrl_classes[]; */
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extern unsigned int vid_limit;
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#define FORMAT_FLAGS_PACKED 0x01
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extern struct cx25821_fmt formats[];
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extern struct cx25821_fmt *cx25821_format_by_fourcc(unsigned int fourcc);
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extern struct cx25821_data timeout_data[MAX_VID_CHANNEL_NUM];
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extern void cx25821_video_wakeup(struct cx25821_dev *dev,
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struct cx25821_dmaqueue *q, u32 count);
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#ifdef TUNER_FLAG
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extern int cx25821_set_tvnorm(struct cx25821_dev *dev, v4l2_std_id norm);
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#endif
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extern int cx25821_res_get(struct cx25821_dev *dev, struct cx25821_fh *fh,
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unsigned int bit);
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extern int cx25821_res_check(struct cx25821_fh *fh, unsigned int bit);
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extern int cx25821_res_locked(struct cx25821_fh *fh, unsigned int bit);
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extern void cx25821_res_free(struct cx25821_dev *dev, struct cx25821_fh *fh,
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unsigned int bits);
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extern int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input);
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extern int cx25821_start_video_dma(struct cx25821_dev *dev,
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struct cx25821_dmaqueue *q,
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struct cx25821_buffer *buf,
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struct sram_channel *channel);
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extern int cx25821_set_scale(struct cx25821_dev *dev, unsigned int width,
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unsigned int height, enum v4l2_field field);
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extern int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status);
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extern void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num);
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extern int cx25821_video_register(struct cx25821_dev *dev);
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extern int cx25821_get_format_size(void);
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extern int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count,
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unsigned int *size);
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extern int cx25821_buffer_prepare(struct videobuf_queue *q,
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struct videobuf_buffer *vb,
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enum v4l2_field field);
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extern void cx25821_buffer_release(struct videobuf_queue *q,
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struct videobuf_buffer *vb);
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extern struct videobuf_queue *get_queue(struct cx25821_fh *fh);
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extern int cx25821_get_resource(struct cx25821_fh *fh, int resource);
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extern int cx25821_video_mmap(struct file *file, struct vm_area_struct *vma);
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extern int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv,
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struct v4l2_format *f);
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extern int cx25821_vidioc_querycap(struct file *file, void *priv,
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struct v4l2_capability *cap);
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extern int cx25821_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
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struct v4l2_fmtdesc *f);
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extern int cx25821_vidioc_reqbufs(struct file *file, void *priv,
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struct v4l2_requestbuffers *p);
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extern int cx25821_vidioc_querybuf(struct file *file, void *priv,
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struct v4l2_buffer *p);
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extern int cx25821_vidioc_qbuf(struct file *file, void *priv,
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struct v4l2_buffer *p);
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extern int cx25821_vidioc_s_std(struct file *file, void *priv,
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v4l2_std_id *tvnorms);
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extern int cx25821_enum_input(struct cx25821_dev *dev, struct v4l2_input *i);
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extern int cx25821_vidioc_enum_input(struct file *file, void *priv,
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struct v4l2_input *i);
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extern int cx25821_vidioc_g_input(struct file *file, void *priv,
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unsigned int *i);
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extern int cx25821_vidioc_s_input(struct file *file, void *priv,
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unsigned int i);
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extern int cx25821_vidioc_g_ctrl(struct file *file, void *priv,
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struct v4l2_control *ctl);
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extern int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv,
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struct v4l2_format *f);
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extern int cx25821_vidioc_g_frequency(struct file *file, void *priv,
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struct v4l2_frequency *f);
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extern int cx25821_set_freq(struct cx25821_dev *dev, struct v4l2_frequency *f);
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extern int cx25821_vidioc_s_frequency(struct file *file, void *priv,
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struct v4l2_frequency *f);
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extern int cx25821_vidioc_g_register(struct file *file, void *fh,
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struct v4l2_dbg_register *reg);
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extern int cx25821_vidioc_s_register(struct file *file, void *fh,
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struct v4l2_dbg_register *reg);
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extern int cx25821_vidioc_g_tuner(struct file *file, void *priv,
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struct v4l2_tuner *t);
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extern int cx25821_vidioc_s_tuner(struct file *file, void *priv,
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struct v4l2_tuner *t);
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extern int cx25821_is_valid_width(u32 width, v4l2_std_id tvnorm);
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extern int cx25821_is_valid_height(u32 height, v4l2_std_id tvnorm);
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extern int cx25821_vidioc_g_priority(struct file *file, void *f,
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enum v4l2_priority *p);
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extern int cx25821_vidioc_s_priority(struct file *file, void *f,
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enum v4l2_priority prio);
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extern int cx25821_vidioc_queryctrl(struct file *file, void *priv,
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struct v4l2_queryctrl *qctrl);
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extern int cx25821_set_control(struct cx25821_dev *dev,
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struct v4l2_control *ctrl, int chan_num);
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extern int cx25821_vidioc_cropcap(struct file *file, void *fh,
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struct v4l2_cropcap *cropcap);
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extern int cx25821_vidioc_s_crop(struct file *file, void *priv,
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const struct v4l2_crop *crop);
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extern int cx25821_vidioc_g_crop(struct file *file, void *priv,
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struct v4l2_crop *crop);
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extern int cx25821_vidioc_querystd(struct file *file, void *priv,
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v4l2_std_id *norm);
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#endif
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