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62 |
marcus.erl |
/*
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* Video capture interface for Linux version 2
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*
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* A generic video device interface for the LINUX operating system
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* using a set of device structures/vectors for low level operations.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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* Authors: Alan Cox, <alan@redhat.com> (version 1)
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* Mauro Carvalho Chehab <mchehab@infradead.org> (version 2)
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*
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* Fixes: 20000516 Claudio Matsuoka <claudio@conectiva.com>
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* - Added procfs support
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*/
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#define dbgarg(cmd, fmt, arg...) \
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if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \
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printk (KERN_DEBUG "%s: ", vfd->name); \
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v4l_printk_ioctl(cmd); \
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printk (KERN_DEBUG "%s: " fmt, vfd->name, ## arg); \
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}
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#define dbgarg2(fmt, arg...) \
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if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \
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printk (KERN_DEBUG "%s: " fmt, vfd->name, ## arg);
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/kmod.h>
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#include <linux/slab.h>
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#include <asm/uaccess.h>
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#include <asm/system.h>
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#define __OLD_VIDIOC_ /* To allow fixing old calls*/
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#include <linux/videodev2.h>
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#ifdef CONFIG_VIDEO_V4L1
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#include <linux/videodev.h>
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| 47 |
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#endif
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#include <media/v4l2-common.h>
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| 50 |
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#define VIDEO_NUM_DEVICES 256
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#define VIDEO_NAME "video4linux"
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/*
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* sysfs stuff
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*/
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| 57 |
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static ssize_t show_name(struct device *cd,
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struct device_attribute *attr, char *buf)
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| 59 |
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{
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| 60 |
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struct video_device *vfd = container_of(cd, struct video_device,
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| 61 |
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class_dev);
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| 62 |
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return sprintf(buf, "%.*s\n", (int)sizeof(vfd->name), vfd->name);
|
| 63 |
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}
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| 65 |
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struct video_device *video_device_alloc(void)
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{
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| 67 |
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struct video_device *vfd;
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| 69 |
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vfd = kzalloc(sizeof(*vfd),GFP_KERNEL);
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return vfd;
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}
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void video_device_release(struct video_device *vfd)
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{
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| 75 |
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kfree(vfd);
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}
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| 78 |
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static void video_release(struct device *cd)
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| 79 |
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{
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| 80 |
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struct video_device *vfd = container_of(cd, struct video_device,
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| 81 |
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class_dev);
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| 83 |
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#if 1
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/* needed until all drivers are fixed */
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if (!vfd->release)
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return;
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#endif
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| 88 |
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vfd->release(vfd);
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| 89 |
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}
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| 91 |
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static struct device_attribute video_device_attrs[] = {
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| 92 |
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__ATTR(name, S_IRUGO, show_name, NULL),
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__ATTR_NULL
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};
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| 96 |
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static struct class video_class = {
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| 97 |
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.name = VIDEO_NAME,
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| 98 |
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.dev_attrs = video_device_attrs,
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.dev_release = video_release,
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| 100 |
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};
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/*
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| 103 |
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* Active devices
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*/
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| 106 |
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static struct video_device *video_device[VIDEO_NUM_DEVICES];
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| 107 |
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static DEFINE_MUTEX(videodev_lock);
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| 109 |
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struct video_device* video_devdata(struct file *file)
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| 110 |
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{
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| 111 |
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return video_device[iminor(file->f_path.dentry->d_inode)];
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}
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/*
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* Open a video device - FIXME: Obsoleted
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*/
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static int video_open(struct inode *inode, struct file *file)
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{
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| 119 |
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unsigned int minor = iminor(inode);
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| 120 |
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int err = 0;
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struct video_device *vfl;
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| 122 |
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const struct file_operations *old_fops;
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| 124 |
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if(minor>=VIDEO_NUM_DEVICES)
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return -ENODEV;
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| 126 |
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mutex_lock(&videodev_lock);
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vfl=video_device[minor];
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if(vfl==NULL) {
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| 129 |
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mutex_unlock(&videodev_lock);
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request_module("char-major-%d-%d", VIDEO_MAJOR, minor);
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mutex_lock(&videodev_lock);
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vfl=video_device[minor];
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| 133 |
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if (vfl==NULL) {
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mutex_unlock(&videodev_lock);
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return -ENODEV;
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| 136 |
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}
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}
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| 138 |
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old_fops = file->f_op;
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file->f_op = fops_get(vfl->fops);
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if(file->f_op->open)
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err = file->f_op->open(inode,file);
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| 142 |
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if (err) {
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| 143 |
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fops_put(file->f_op);
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file->f_op = fops_get(old_fops);
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| 145 |
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}
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| 146 |
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fops_put(old_fops);
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| 147 |
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mutex_unlock(&videodev_lock);
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| 148 |
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return err;
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| 149 |
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}
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| 150 |
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| 151 |
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/*
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| 152 |
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* helper function -- handles userspace copying for ioctl arguments
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*/
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| 155 |
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#ifdef __OLD_VIDIOC_
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static unsigned int
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video_fix_command(unsigned int cmd)
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| 158 |
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{
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| 159 |
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switch (cmd) {
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| 160 |
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case VIDIOC_OVERLAY_OLD:
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cmd = VIDIOC_OVERLAY;
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break;
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| 163 |
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case VIDIOC_S_PARM_OLD:
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cmd = VIDIOC_S_PARM;
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break;
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case VIDIOC_S_CTRL_OLD:
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cmd = VIDIOC_S_CTRL;
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break;
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| 169 |
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case VIDIOC_G_AUDIO_OLD:
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cmd = VIDIOC_G_AUDIO;
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break;
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case VIDIOC_G_AUDOUT_OLD:
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cmd = VIDIOC_G_AUDOUT;
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break;
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case VIDIOC_CROPCAP_OLD:
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cmd = VIDIOC_CROPCAP;
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break;
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| 178 |
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}
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return cmd;
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| 180 |
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}
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#endif
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| 183 |
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/*
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* Obsolete usercopy function - Should be removed soon
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*/
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int
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video_usercopy(struct inode *inode, struct file *file,
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unsigned int cmd, unsigned long arg,
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| 189 |
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int (*func)(struct inode *inode, struct file *file,
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| 190 |
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unsigned int cmd, void *arg))
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{
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| 192 |
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char sbuf[128];
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| 193 |
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void *mbuf = NULL;
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| 194 |
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void *parg = NULL;
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| 195 |
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int err = -EINVAL;
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| 196 |
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int is_ext_ctrl;
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| 197 |
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size_t ctrls_size = 0;
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| 198 |
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void __user *user_ptr = NULL;
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| 199 |
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| 200 |
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#ifdef __OLD_VIDIOC_
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cmd = video_fix_command(cmd);
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#endif
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| 203 |
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is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS ||
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cmd == VIDIOC_TRY_EXT_CTRLS);
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| 205 |
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| 206 |
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/* Copy arguments into temp kernel buffer */
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| 207 |
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switch (_IOC_DIR(cmd)) {
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| 208 |
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case _IOC_NONE:
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| 209 |
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parg = NULL;
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| 210 |
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break;
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| 211 |
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case _IOC_READ:
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| 212 |
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case _IOC_WRITE:
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| 213 |
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case (_IOC_WRITE | _IOC_READ):
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| 214 |
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if (_IOC_SIZE(cmd) <= sizeof(sbuf)) {
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| 215 |
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parg = sbuf;
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| 216 |
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} else {
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| 217 |
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/* too big to allocate from stack */
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| 218 |
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mbuf = kmalloc(_IOC_SIZE(cmd),GFP_KERNEL);
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| 219 |
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if (NULL == mbuf)
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| 220 |
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return -ENOMEM;
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| 221 |
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parg = mbuf;
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| 222 |
|
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}
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| 223 |
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| 224 |
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err = -EFAULT;
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| 225 |
|
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if (_IOC_DIR(cmd) & _IOC_WRITE)
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| 226 |
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if (copy_from_user(parg, (void __user *)arg, _IOC_SIZE(cmd)))
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| 227 |
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goto out;
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| 228 |
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break;
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| 229 |
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}
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| 230 |
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if (is_ext_ctrl) {
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| 231 |
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struct v4l2_ext_controls *p = parg;
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| 232 |
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| 233 |
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/* In case of an error, tell the caller that it wasn't
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| 234 |
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a specific control that caused it. */
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| 235 |
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p->error_idx = p->count;
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| 236 |
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user_ptr = (void __user *)p->controls;
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| 237 |
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if (p->count) {
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| 238 |
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ctrls_size = sizeof(struct v4l2_ext_control) * p->count;
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| 239 |
|
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/* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */
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| 240 |
|
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mbuf = kmalloc(ctrls_size, GFP_KERNEL);
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| 241 |
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err = -ENOMEM;
|
| 242 |
|
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if (NULL == mbuf)
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| 243 |
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goto out_ext_ctrl;
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| 244 |
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err = -EFAULT;
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| 245 |
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if (copy_from_user(mbuf, user_ptr, ctrls_size))
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| 246 |
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goto out_ext_ctrl;
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| 247 |
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p->controls = mbuf;
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| 248 |
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}
|
| 249 |
|
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}
|
| 250 |
|
|
|
| 251 |
|
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/* call driver */
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| 252 |
|
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err = func(inode, file, cmd, parg);
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| 253 |
|
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if (err == -ENOIOCTLCMD)
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| 254 |
|
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err = -EINVAL;
|
| 255 |
|
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if (is_ext_ctrl) {
|
| 256 |
|
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struct v4l2_ext_controls *p = parg;
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| 257 |
|
|
|
| 258 |
|
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p->controls = (void *)user_ptr;
|
| 259 |
|
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if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size))
|
| 260 |
|
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err = -EFAULT;
|
| 261 |
|
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goto out_ext_ctrl;
|
| 262 |
|
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}
|
| 263 |
|
|
if (err < 0)
|
| 264 |
|
|
goto out;
|
| 265 |
|
|
|
| 266 |
|
|
out_ext_ctrl:
|
| 267 |
|
|
/* Copy results into user buffer */
|
| 268 |
|
|
switch (_IOC_DIR(cmd))
|
| 269 |
|
|
{
|
| 270 |
|
|
case _IOC_READ:
|
| 271 |
|
|
case (_IOC_WRITE | _IOC_READ):
|
| 272 |
|
|
if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd)))
|
| 273 |
|
|
err = -EFAULT;
|
| 274 |
|
|
break;
|
| 275 |
|
|
}
|
| 276 |
|
|
|
| 277 |
|
|
out:
|
| 278 |
|
|
kfree(mbuf);
|
| 279 |
|
|
return err;
|
| 280 |
|
|
}
|
| 281 |
|
|
|
| 282 |
|
|
/*
|
| 283 |
|
|
* open/release helper functions -- handle exclusive opens
|
| 284 |
|
|
* Should be removed soon
|
| 285 |
|
|
*/
|
| 286 |
|
|
int video_exclusive_open(struct inode *inode, struct file *file)
|
| 287 |
|
|
{
|
| 288 |
|
|
struct video_device *vfl = video_devdata(file);
|
| 289 |
|
|
int retval = 0;
|
| 290 |
|
|
|
| 291 |
|
|
mutex_lock(&vfl->lock);
|
| 292 |
|
|
if (vfl->users) {
|
| 293 |
|
|
retval = -EBUSY;
|
| 294 |
|
|
} else {
|
| 295 |
|
|
vfl->users++;
|
| 296 |
|
|
}
|
| 297 |
|
|
mutex_unlock(&vfl->lock);
|
| 298 |
|
|
return retval;
|
| 299 |
|
|
}
|
| 300 |
|
|
|
| 301 |
|
|
int video_exclusive_release(struct inode *inode, struct file *file)
|
| 302 |
|
|
{
|
| 303 |
|
|
struct video_device *vfl = video_devdata(file);
|
| 304 |
|
|
|
| 305 |
|
|
vfl->users--;
|
| 306 |
|
|
return 0;
|
| 307 |
|
|
}
|
| 308 |
|
|
|
| 309 |
|
|
static char *v4l2_memory_names[] = {
|
| 310 |
|
|
[V4L2_MEMORY_MMAP] = "mmap",
|
| 311 |
|
|
[V4L2_MEMORY_USERPTR] = "userptr",
|
| 312 |
|
|
[V4L2_MEMORY_OVERLAY] = "overlay",
|
| 313 |
|
|
};
|
| 314 |
|
|
|
| 315 |
|
|
|
| 316 |
|
|
/* FIXME: Those stuff are replicated also on v4l2-common.c */
|
| 317 |
|
|
static char *v4l2_type_names_FIXME[] = {
|
| 318 |
|
|
[V4L2_BUF_TYPE_VIDEO_CAPTURE] = "video-cap",
|
| 319 |
|
|
[V4L2_BUF_TYPE_VIDEO_OVERLAY] = "video-over",
|
| 320 |
|
|
[V4L2_BUF_TYPE_VIDEO_OUTPUT] = "video-out",
|
| 321 |
|
|
[V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap",
|
| 322 |
|
|
[V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out",
|
| 323 |
|
|
[V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out",
|
| 324 |
|
|
[V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-capture",
|
| 325 |
|
|
[V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "video-out-over",
|
| 326 |
|
|
[V4L2_BUF_TYPE_PRIVATE] = "private",
|
| 327 |
|
|
};
|
| 328 |
|
|
|
| 329 |
|
|
static char *v4l2_field_names_FIXME[] = {
|
| 330 |
|
|
[V4L2_FIELD_ANY] = "any",
|
| 331 |
|
|
[V4L2_FIELD_NONE] = "none",
|
| 332 |
|
|
[V4L2_FIELD_TOP] = "top",
|
| 333 |
|
|
[V4L2_FIELD_BOTTOM] = "bottom",
|
| 334 |
|
|
[V4L2_FIELD_INTERLACED] = "interlaced",
|
| 335 |
|
|
[V4L2_FIELD_SEQ_TB] = "seq-tb",
|
| 336 |
|
|
[V4L2_FIELD_SEQ_BT] = "seq-bt",
|
| 337 |
|
|
[V4L2_FIELD_ALTERNATE] = "alternate",
|
| 338 |
|
|
[V4L2_FIELD_INTERLACED_TB] = "interlaced-tb",
|
| 339 |
|
|
[V4L2_FIELD_INTERLACED_BT] = "interlaced-bt",
|
| 340 |
|
|
};
|
| 341 |
|
|
|
| 342 |
|
|
#define prt_names(a,arr) (((a)>=0)&&((a)<ARRAY_SIZE(arr)))?arr[a]:"unknown"
|
| 343 |
|
|
|
| 344 |
|
|
static void dbgbuf(unsigned int cmd, struct video_device *vfd,
|
| 345 |
|
|
struct v4l2_buffer *p)
|
| 346 |
|
|
{
|
| 347 |
|
|
struct v4l2_timecode *tc=&p->timecode;
|
| 348 |
|
|
|
| 349 |
|
|
dbgarg (cmd, "%02ld:%02d:%02d.%08ld index=%d, type=%s, "
|
| 350 |
|
|
"bytesused=%d, flags=0x%08d, "
|
| 351 |
|
|
"field=%0d, sequence=%d, memory=%s, offset/userptr=0x%08lx, length=%d\n",
|
| 352 |
|
|
(p->timestamp.tv_sec/3600),
|
| 353 |
|
|
(int)(p->timestamp.tv_sec/60)%60,
|
| 354 |
|
|
(int)(p->timestamp.tv_sec%60),
|
| 355 |
|
|
p->timestamp.tv_usec,
|
| 356 |
|
|
p->index,
|
| 357 |
|
|
prt_names(p->type,v4l2_type_names_FIXME),
|
| 358 |
|
|
p->bytesused,p->flags,
|
| 359 |
|
|
p->field,p->sequence,
|
| 360 |
|
|
prt_names(p->memory,v4l2_memory_names),
|
| 361 |
|
|
p->m.userptr, p->length);
|
| 362 |
|
|
dbgarg2 ("timecode= %02d:%02d:%02d type=%d, "
|
| 363 |
|
|
"flags=0x%08d, frames=%d, userbits=0x%08x\n",
|
| 364 |
|
|
tc->hours,tc->minutes,tc->seconds,
|
| 365 |
|
|
tc->type, tc->flags, tc->frames, *(__u32 *) tc->userbits);
|
| 366 |
|
|
}
|
| 367 |
|
|
|
| 368 |
|
|
static inline void dbgrect(struct video_device *vfd, char *s,
|
| 369 |
|
|
struct v4l2_rect *r)
|
| 370 |
|
|
{
|
| 371 |
|
|
dbgarg2 ("%sRect start at %dx%d, size= %dx%d\n", s, r->left, r->top,
|
| 372 |
|
|
r->width, r->height);
|
| 373 |
|
|
};
|
| 374 |
|
|
|
| 375 |
|
|
static inline void v4l_print_pix_fmt (struct video_device *vfd,
|
| 376 |
|
|
struct v4l2_pix_format *fmt)
|
| 377 |
|
|
{
|
| 378 |
|
|
dbgarg2 ("width=%d, height=%d, format=%c%c%c%c, field=%s, "
|
| 379 |
|
|
"bytesperline=%d sizeimage=%d, colorspace=%d\n",
|
| 380 |
|
|
fmt->width,fmt->height,
|
| 381 |
|
|
(fmt->pixelformat & 0xff),
|
| 382 |
|
|
(fmt->pixelformat >> 8) & 0xff,
|
| 383 |
|
|
(fmt->pixelformat >> 16) & 0xff,
|
| 384 |
|
|
(fmt->pixelformat >> 24) & 0xff,
|
| 385 |
|
|
prt_names(fmt->field,v4l2_field_names_FIXME),
|
| 386 |
|
|
fmt->bytesperline,fmt->sizeimage,fmt->colorspace);
|
| 387 |
|
|
};
|
| 388 |
|
|
|
| 389 |
|
|
|
| 390 |
|
|
static int check_fmt (struct video_device *vfd, enum v4l2_buf_type type)
|
| 391 |
|
|
{
|
| 392 |
|
|
switch (type) {
|
| 393 |
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
| 394 |
|
|
if (vfd->vidioc_try_fmt_cap)
|
| 395 |
|
|
return (0);
|
| 396 |
|
|
break;
|
| 397 |
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
| 398 |
|
|
if (vfd->vidioc_try_fmt_overlay)
|
| 399 |
|
|
return (0);
|
| 400 |
|
|
break;
|
| 401 |
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
| 402 |
|
|
if (vfd->vidioc_try_fmt_vbi)
|
| 403 |
|
|
return (0);
|
| 404 |
|
|
break;
|
| 405 |
|
|
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
|
| 406 |
|
|
if (vfd->vidioc_try_fmt_vbi_output)
|
| 407 |
|
|
return (0);
|
| 408 |
|
|
break;
|
| 409 |
|
|
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
|
| 410 |
|
|
if (vfd->vidioc_try_fmt_vbi_capture)
|
| 411 |
|
|
return (0);
|
| 412 |
|
|
break;
|
| 413 |
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
|
| 414 |
|
|
if (vfd->vidioc_try_fmt_video_output)
|
| 415 |
|
|
return (0);
|
| 416 |
|
|
break;
|
| 417 |
|
|
case V4L2_BUF_TYPE_VBI_OUTPUT:
|
| 418 |
|
|
if (vfd->vidioc_try_fmt_vbi_output)
|
| 419 |
|
|
return (0);
|
| 420 |
|
|
break;
|
| 421 |
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
|
| 422 |
|
|
if (vfd->vidioc_try_fmt_output_overlay)
|
| 423 |
|
|
return (0);
|
| 424 |
|
|
break;
|
| 425 |
|
|
case V4L2_BUF_TYPE_PRIVATE:
|
| 426 |
|
|
if (vfd->vidioc_try_fmt_type_private)
|
| 427 |
|
|
return (0);
|
| 428 |
|
|
break;
|
| 429 |
|
|
}
|
| 430 |
|
|
return (-EINVAL);
|
| 431 |
|
|
}
|
| 432 |
|
|
|
| 433 |
|
|
static int __video_do_ioctl(struct inode *inode, struct file *file,
|
| 434 |
|
|
unsigned int cmd, void *arg)
|
| 435 |
|
|
{
|
| 436 |
|
|
struct video_device *vfd = video_devdata(file);
|
| 437 |
|
|
void *fh = file->private_data;
|
| 438 |
|
|
int ret = -EINVAL;
|
| 439 |
|
|
|
| 440 |
|
|
if ( (vfd->debug & V4L2_DEBUG_IOCTL) &&
|
| 441 |
|
|
!(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) {
|
| 442 |
|
|
v4l_print_ioctl(vfd->name, cmd);
|
| 443 |
|
|
}
|
| 444 |
|
|
|
| 445 |
|
|
#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
| 446 |
|
|
/***********************************************************
|
| 447 |
|
|
Handles calls to the obsoleted V4L1 API
|
| 448 |
|
|
Due to the nature of VIDIOCGMBUF, each driver that supports
|
| 449 |
|
|
V4L1 should implement its own handler for this ioctl.
|
| 450 |
|
|
***********************************************************/
|
| 451 |
|
|
|
| 452 |
|
|
/* --- streaming capture ------------------------------------- */
|
| 453 |
|
|
if (cmd == VIDIOCGMBUF) {
|
| 454 |
|
|
struct video_mbuf *p=arg;
|
| 455 |
|
|
|
| 456 |
|
|
memset(p, 0, sizeof(*p));
|
| 457 |
|
|
|
| 458 |
|
|
if (!vfd->vidiocgmbuf)
|
| 459 |
|
|
return ret;
|
| 460 |
|
|
ret=vfd->vidiocgmbuf(file, fh, p);
|
| 461 |
|
|
if (!ret)
|
| 462 |
|
|
dbgarg (cmd, "size=%d, frames=%d, offsets=0x%08lx\n",
|
| 463 |
|
|
p->size, p->frames,
|
| 464 |
|
|
(unsigned long)p->offsets);
|
| 465 |
|
|
return ret;
|
| 466 |
|
|
}
|
| 467 |
|
|
|
| 468 |
|
|
/********************************************************
|
| 469 |
|
|
All other V4L1 calls are handled by v4l1_compat module.
|
| 470 |
|
|
Those calls will be translated into V4L2 calls, and
|
| 471 |
|
|
__video_do_ioctl will be called again, with one or more
|
| 472 |
|
|
V4L2 ioctls.
|
| 473 |
|
|
********************************************************/
|
| 474 |
|
|
if (_IOC_TYPE(cmd)=='v')
|
| 475 |
|
|
return v4l_compat_translate_ioctl(inode,file,cmd,arg,
|
| 476 |
|
|
__video_do_ioctl);
|
| 477 |
|
|
#endif
|
| 478 |
|
|
|
| 479 |
|
|
switch(cmd) {
|
| 480 |
|
|
/* --- capabilities ------------------------------------------ */
|
| 481 |
|
|
case VIDIOC_QUERYCAP:
|
| 482 |
|
|
{
|
| 483 |
|
|
struct v4l2_capability *cap = (struct v4l2_capability*)arg;
|
| 484 |
|
|
memset(cap, 0, sizeof(*cap));
|
| 485 |
|
|
|
| 486 |
|
|
if (!vfd->vidioc_querycap)
|
| 487 |
|
|
break;
|
| 488 |
|
|
|
| 489 |
|
|
ret=vfd->vidioc_querycap(file, fh, cap);
|
| 490 |
|
|
if (!ret)
|
| 491 |
|
|
dbgarg (cmd, "driver=%s, card=%s, bus=%s, "
|
| 492 |
|
|
"version=0x%08x, "
|
| 493 |
|
|
"capabilities=0x%08x\n",
|
| 494 |
|
|
cap->driver,cap->card,cap->bus_info,
|
| 495 |
|
|
cap->version,
|
| 496 |
|
|
cap->capabilities);
|
| 497 |
|
|
break;
|
| 498 |
|
|
}
|
| 499 |
|
|
|
| 500 |
|
|
/* --- priority ------------------------------------------ */
|
| 501 |
|
|
case VIDIOC_G_PRIORITY:
|
| 502 |
|
|
{
|
| 503 |
|
|
enum v4l2_priority *p=arg;
|
| 504 |
|
|
|
| 505 |
|
|
if (!vfd->vidioc_g_priority)
|
| 506 |
|
|
break;
|
| 507 |
|
|
ret=vfd->vidioc_g_priority(file, fh, p);
|
| 508 |
|
|
if (!ret)
|
| 509 |
|
|
dbgarg(cmd, "priority is %d\n", *p);
|
| 510 |
|
|
break;
|
| 511 |
|
|
}
|
| 512 |
|
|
case VIDIOC_S_PRIORITY:
|
| 513 |
|
|
{
|
| 514 |
|
|
enum v4l2_priority *p=arg;
|
| 515 |
|
|
|
| 516 |
|
|
if (!vfd->vidioc_s_priority)
|
| 517 |
|
|
break;
|
| 518 |
|
|
dbgarg(cmd, "setting priority to %d\n", *p);
|
| 519 |
|
|
ret=vfd->vidioc_s_priority(file, fh, *p);
|
| 520 |
|
|
break;
|
| 521 |
|
|
}
|
| 522 |
|
|
|
| 523 |
|
|
/* --- capture ioctls ---------------------------------------- */
|
| 524 |
|
|
case VIDIOC_ENUM_FMT:
|
| 525 |
|
|
{
|
| 526 |
|
|
struct v4l2_fmtdesc *f = arg;
|
| 527 |
|
|
enum v4l2_buf_type type;
|
| 528 |
|
|
unsigned int index;
|
| 529 |
|
|
|
| 530 |
|
|
index = f->index;
|
| 531 |
|
|
type = f->type;
|
| 532 |
|
|
memset(f,0,sizeof(*f));
|
| 533 |
|
|
f->index = index;
|
| 534 |
|
|
f->type = type;
|
| 535 |
|
|
|
| 536 |
|
|
switch (type) {
|
| 537 |
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
| 538 |
|
|
if (vfd->vidioc_enum_fmt_cap)
|
| 539 |
|
|
ret=vfd->vidioc_enum_fmt_cap(file, fh, f);
|
| 540 |
|
|
break;
|
| 541 |
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
| 542 |
|
|
if (vfd->vidioc_enum_fmt_overlay)
|
| 543 |
|
|
ret=vfd->vidioc_enum_fmt_overlay(file, fh, f);
|
| 544 |
|
|
break;
|
| 545 |
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
| 546 |
|
|
if (vfd->vidioc_enum_fmt_vbi)
|
| 547 |
|
|
ret=vfd->vidioc_enum_fmt_vbi(file, fh, f);
|
| 548 |
|
|
break;
|
| 549 |
|
|
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
|
| 550 |
|
|
if (vfd->vidioc_enum_fmt_vbi_output)
|
| 551 |
|
|
ret=vfd->vidioc_enum_fmt_vbi_output(file,
|
| 552 |
|
|
fh, f);
|
| 553 |
|
|
break;
|
| 554 |
|
|
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
|
| 555 |
|
|
if (vfd->vidioc_enum_fmt_vbi_capture)
|
| 556 |
|
|
ret=vfd->vidioc_enum_fmt_vbi_capture(file,
|
| 557 |
|
|
fh, f);
|
| 558 |
|
|
break;
|
| 559 |
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
|
| 560 |
|
|
if (vfd->vidioc_enum_fmt_video_output)
|
| 561 |
|
|
ret=vfd->vidioc_enum_fmt_video_output(file,
|
| 562 |
|
|
fh, f);
|
| 563 |
|
|
break;
|
| 564 |
|
|
case V4L2_BUF_TYPE_VBI_OUTPUT:
|
| 565 |
|
|
if (vfd->vidioc_enum_fmt_vbi_output)
|
| 566 |
|
|
ret=vfd->vidioc_enum_fmt_vbi_output(file,
|
| 567 |
|
|
fh, f);
|
| 568 |
|
|
break;
|
| 569 |
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
|
| 570 |
|
|
if (vfd->vidioc_enum_fmt_output_overlay)
|
| 571 |
|
|
ret=vfd->vidioc_enum_fmt_output_overlay(file, fh, f);
|
| 572 |
|
|
break;
|
| 573 |
|
|
case V4L2_BUF_TYPE_PRIVATE:
|
| 574 |
|
|
if (vfd->vidioc_enum_fmt_type_private)
|
| 575 |
|
|
ret=vfd->vidioc_enum_fmt_type_private(file,
|
| 576 |
|
|
fh, f);
|
| 577 |
|
|
break;
|
| 578 |
|
|
}
|
| 579 |
|
|
if (!ret)
|
| 580 |
|
|
dbgarg (cmd, "index=%d, type=%d, flags=%d, "
|
| 581 |
|
|
"pixelformat=%c%c%c%c, description='%s'\n",
|
| 582 |
|
|
f->index, f->type, f->flags,
|
| 583 |
|
|
(f->pixelformat & 0xff),
|
| 584 |
|
|
(f->pixelformat >> 8) & 0xff,
|
| 585 |
|
|
(f->pixelformat >> 16) & 0xff,
|
| 586 |
|
|
(f->pixelformat >> 24) & 0xff,
|
| 587 |
|
|
f->description);
|
| 588 |
|
|
break;
|
| 589 |
|
|
}
|
| 590 |
|
|
case VIDIOC_G_FMT:
|
| 591 |
|
|
{
|
| 592 |
|
|
struct v4l2_format *f = (struct v4l2_format *)arg;
|
| 593 |
|
|
enum v4l2_buf_type type=f->type;
|
| 594 |
|
|
|
| 595 |
|
|
memset(&f->fmt.pix,0,sizeof(f->fmt.pix));
|
| 596 |
|
|
f->type=type;
|
| 597 |
|
|
|
| 598 |
|
|
/* FIXME: Should be one dump per type */
|
| 599 |
|
|
dbgarg (cmd, "type=%s\n", prt_names(type,
|
| 600 |
|
|
v4l2_type_names_FIXME));
|
| 601 |
|
|
|
| 602 |
|
|
switch (type) {
|
| 603 |
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
| 604 |
|
|
if (vfd->vidioc_g_fmt_cap)
|
| 605 |
|
|
ret=vfd->vidioc_g_fmt_cap(file, fh, f);
|
| 606 |
|
|
if (!ret)
|
| 607 |
|
|
v4l_print_pix_fmt(vfd,&f->fmt.pix);
|
| 608 |
|
|
break;
|
| 609 |
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
| 610 |
|
|
if (vfd->vidioc_g_fmt_overlay)
|
| 611 |
|
|
ret=vfd->vidioc_g_fmt_overlay(file, fh, f);
|
| 612 |
|
|
break;
|
| 613 |
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
| 614 |
|
|
if (vfd->vidioc_g_fmt_vbi)
|
| 615 |
|
|
ret=vfd->vidioc_g_fmt_vbi(file, fh, f);
|
| 616 |
|
|
break;
|
| 617 |
|
|
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
|
| 618 |
|
|
if (vfd->vidioc_g_fmt_vbi_output)
|
| 619 |
|
|
ret=vfd->vidioc_g_fmt_vbi_output(file, fh, f);
|
| 620 |
|
|
break;
|
| 621 |
|
|
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
|
| 622 |
|
|
if (vfd->vidioc_g_fmt_vbi_capture)
|
| 623 |
|
|
ret=vfd->vidioc_g_fmt_vbi_capture(file, fh, f);
|
| 624 |
|
|
break;
|
| 625 |
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
|
| 626 |
|
|
if (vfd->vidioc_g_fmt_video_output)
|
| 627 |
|
|
ret=vfd->vidioc_g_fmt_video_output(file,
|
| 628 |
|
|
fh, f);
|
| 629 |
|
|
break;
|
| 630 |
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
|
| 631 |
|
|
if (vfd->vidioc_g_fmt_output_overlay)
|
| 632 |
|
|
ret=vfd->vidioc_g_fmt_output_overlay(file, fh, f);
|
| 633 |
|
|
break;
|
| 634 |
|
|
case V4L2_BUF_TYPE_VBI_OUTPUT:
|
| 635 |
|
|
if (vfd->vidioc_g_fmt_vbi_output)
|
| 636 |
|
|
ret=vfd->vidioc_g_fmt_vbi_output(file, fh, f);
|
| 637 |
|
|
break;
|
| 638 |
|
|
case V4L2_BUF_TYPE_PRIVATE:
|
| 639 |
|
|
if (vfd->vidioc_g_fmt_type_private)
|
| 640 |
|
|
ret=vfd->vidioc_g_fmt_type_private(file,
|
| 641 |
|
|
fh, f);
|
| 642 |
|
|
break;
|
| 643 |
|
|
}
|
| 644 |
|
|
|
| 645 |
|
|
break;
|
| 646 |
|
|
}
|
| 647 |
|
|
case VIDIOC_S_FMT:
|
| 648 |
|
|
{
|
| 649 |
|
|
struct v4l2_format *f = (struct v4l2_format *)arg;
|
| 650 |
|
|
|
| 651 |
|
|
/* FIXME: Should be one dump per type */
|
| 652 |
|
|
dbgarg (cmd, "type=%s\n", prt_names(f->type,
|
| 653 |
|
|
v4l2_type_names_FIXME));
|
| 654 |
|
|
|
| 655 |
|
|
switch (f->type) {
|
| 656 |
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
| 657 |
|
|
v4l_print_pix_fmt(vfd,&f->fmt.pix);
|
| 658 |
|
|
if (vfd->vidioc_s_fmt_cap)
|
| 659 |
|
|
ret=vfd->vidioc_s_fmt_cap(file, fh, f);
|
| 660 |
|
|
break;
|
| 661 |
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
| 662 |
|
|
if (vfd->vidioc_s_fmt_overlay)
|
| 663 |
|
|
ret=vfd->vidioc_s_fmt_overlay(file, fh, f);
|
| 664 |
|
|
break;
|
| 665 |
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
| 666 |
|
|
if (vfd->vidioc_s_fmt_vbi)
|
| 667 |
|
|
ret=vfd->vidioc_s_fmt_vbi(file, fh, f);
|
| 668 |
|
|
break;
|
| 669 |
|
|
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
|
| 670 |
|
|
if (vfd->vidioc_s_fmt_vbi_output)
|
| 671 |
|
|
ret=vfd->vidioc_s_fmt_vbi_output(file, fh, f);
|
| 672 |
|
|
break;
|
| 673 |
|
|
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
|
| 674 |
|
|
if (vfd->vidioc_s_fmt_vbi_capture)
|
| 675 |
|
|
ret=vfd->vidioc_s_fmt_vbi_capture(file, fh, f);
|
| 676 |
|
|
break;
|
| 677 |
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
|
| 678 |
|
|
if (vfd->vidioc_s_fmt_video_output)
|
| 679 |
|
|
ret=vfd->vidioc_s_fmt_video_output(file,
|
| 680 |
|
|
fh, f);
|
| 681 |
|
|
break;
|
| 682 |
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
|
| 683 |
|
|
if (vfd->vidioc_s_fmt_output_overlay)
|
| 684 |
|
|
ret=vfd->vidioc_s_fmt_output_overlay(file, fh, f);
|
| 685 |
|
|
break;
|
| 686 |
|
|
case V4L2_BUF_TYPE_VBI_OUTPUT:
|
| 687 |
|
|
if (vfd->vidioc_s_fmt_vbi_output)
|
| 688 |
|
|
ret=vfd->vidioc_s_fmt_vbi_output(file,
|
| 689 |
|
|
fh, f);
|
| 690 |
|
|
break;
|
| 691 |
|
|
case V4L2_BUF_TYPE_PRIVATE:
|
| 692 |
|
|
if (vfd->vidioc_s_fmt_type_private)
|
| 693 |
|
|
ret=vfd->vidioc_s_fmt_type_private(file,
|
| 694 |
|
|
fh, f);
|
| 695 |
|
|
break;
|
| 696 |
|
|
}
|
| 697 |
|
|
break;
|
| 698 |
|
|
}
|
| 699 |
|
|
case VIDIOC_TRY_FMT:
|
| 700 |
|
|
{
|
| 701 |
|
|
struct v4l2_format *f = (struct v4l2_format *)arg;
|
| 702 |
|
|
|
| 703 |
|
|
/* FIXME: Should be one dump per type */
|
| 704 |
|
|
dbgarg (cmd, "type=%s\n", prt_names(f->type,
|
| 705 |
|
|
v4l2_type_names_FIXME));
|
| 706 |
|
|
switch (f->type) {
|
| 707 |
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
| 708 |
|
|
if (vfd->vidioc_try_fmt_cap)
|
| 709 |
|
|
ret=vfd->vidioc_try_fmt_cap(file, fh, f);
|
| 710 |
|
|
if (!ret)
|
| 711 |
|
|
v4l_print_pix_fmt(vfd,&f->fmt.pix);
|
| 712 |
|
|
break;
|
| 713 |
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
| 714 |
|
|
if (vfd->vidioc_try_fmt_overlay)
|
| 715 |
|
|
ret=vfd->vidioc_try_fmt_overlay(file, fh, f);
|
| 716 |
|
|
break;
|
| 717 |
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
| 718 |
|
|
if (vfd->vidioc_try_fmt_vbi)
|
| 719 |
|
|
ret=vfd->vidioc_try_fmt_vbi(file, fh, f);
|
| 720 |
|
|
break;
|
| 721 |
|
|
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
|
| 722 |
|
|
if (vfd->vidioc_try_fmt_vbi_output)
|
| 723 |
|
|
ret=vfd->vidioc_try_fmt_vbi_output(file,
|
| 724 |
|
|
fh, f);
|
| 725 |
|
|
break;
|
| 726 |
|
|
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
|
| 727 |
|
|
if (vfd->vidioc_try_fmt_vbi_capture)
|
| 728 |
|
|
ret=vfd->vidioc_try_fmt_vbi_capture(file,
|
| 729 |
|
|
fh, f);
|
| 730 |
|
|
break;
|
| 731 |
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
|
| 732 |
|
|
if (vfd->vidioc_try_fmt_video_output)
|
| 733 |
|
|
ret=vfd->vidioc_try_fmt_video_output(file,
|
| 734 |
|
|
fh, f);
|
| 735 |
|
|
break;
|
| 736 |
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
|
| 737 |
|
|
if (vfd->vidioc_try_fmt_output_overlay)
|
| 738 |
|
|
ret=vfd->vidioc_try_fmt_output_overlay(file, fh, f);
|
| 739 |
|
|
break;
|
| 740 |
|
|
case V4L2_BUF_TYPE_VBI_OUTPUT:
|
| 741 |
|
|
if (vfd->vidioc_try_fmt_vbi_output)
|
| 742 |
|
|
ret=vfd->vidioc_try_fmt_vbi_output(file,
|
| 743 |
|
|
fh, f);
|
| 744 |
|
|
break;
|
| 745 |
|
|
case V4L2_BUF_TYPE_PRIVATE:
|
| 746 |
|
|
if (vfd->vidioc_try_fmt_type_private)
|
| 747 |
|
|
ret=vfd->vidioc_try_fmt_type_private(file,
|
| 748 |
|
|
fh, f);
|
| 749 |
|
|
break;
|
| 750 |
|
|
}
|
| 751 |
|
|
|
| 752 |
|
|
break;
|
| 753 |
|
|
}
|
| 754 |
|
|
/* FIXME: Those buf reqs could be handled here,
|
| 755 |
|
|
with some changes on videobuf to allow its header to be included at
|
| 756 |
|
|
videodev2.h or being merged at videodev2.
|
| 757 |
|
|
*/
|
| 758 |
|
|
case VIDIOC_REQBUFS:
|
| 759 |
|
|
{
|
| 760 |
|
|
struct v4l2_requestbuffers *p=arg;
|
| 761 |
|
|
|
| 762 |
|
|
if (!vfd->vidioc_reqbufs)
|
| 763 |
|
|
break;
|
| 764 |
|
|
ret = check_fmt (vfd, p->type);
|
| 765 |
|
|
if (ret)
|
| 766 |
|
|
break;
|
| 767 |
|
|
|
| 768 |
|
|
ret=vfd->vidioc_reqbufs(file, fh, p);
|
| 769 |
|
|
dbgarg (cmd, "count=%d, type=%s, memory=%s\n",
|
| 770 |
|
|
p->count,
|
| 771 |
|
|
prt_names(p->type,v4l2_type_names_FIXME),
|
| 772 |
|
|
prt_names(p->memory,v4l2_memory_names));
|
| 773 |
|
|
break;
|
| 774 |
|
|
}
|
| 775 |
|
|
case VIDIOC_QUERYBUF:
|
| 776 |
|
|
{
|
| 777 |
|
|
struct v4l2_buffer *p=arg;
|
| 778 |
|
|
|
| 779 |
|
|
if (!vfd->vidioc_querybuf)
|
| 780 |
|
|
break;
|
| 781 |
|
|
ret = check_fmt (vfd, p->type);
|
| 782 |
|
|
if (ret)
|
| 783 |
|
|
break;
|
| 784 |
|
|
|
| 785 |
|
|
ret=vfd->vidioc_querybuf(file, fh, p);
|
| 786 |
|
|
if (!ret)
|
| 787 |
|
|
dbgbuf(cmd,vfd,p);
|
| 788 |
|
|
break;
|
| 789 |
|
|
}
|
| 790 |
|
|
case VIDIOC_QBUF:
|
| 791 |
|
|
{
|
| 792 |
|
|
struct v4l2_buffer *p=arg;
|
| 793 |
|
|
|
| 794 |
|
|
if (!vfd->vidioc_qbuf)
|
| 795 |
|
|
break;
|
| 796 |
|
|
ret = check_fmt (vfd, p->type);
|
| 797 |
|
|
if (ret)
|
| 798 |
|
|
break;
|
| 799 |
|
|
|
| 800 |
|
|
ret=vfd->vidioc_qbuf(file, fh, p);
|
| 801 |
|
|
if (!ret)
|
| 802 |
|
|
dbgbuf(cmd,vfd,p);
|
| 803 |
|
|
break;
|
| 804 |
|
|
}
|
| 805 |
|
|
case VIDIOC_DQBUF:
|
| 806 |
|
|
{
|
| 807 |
|
|
struct v4l2_buffer *p=arg;
|
| 808 |
|
|
if (!vfd->vidioc_dqbuf)
|
| 809 |
|
|
break;
|
| 810 |
|
|
ret = check_fmt (vfd, p->type);
|
| 811 |
|
|
if (ret)
|
| 812 |
|
|
break;
|
| 813 |
|
|
|
| 814 |
|
|
ret=vfd->vidioc_dqbuf(file, fh, p);
|
| 815 |
|
|
if (!ret)
|
| 816 |
|
|
dbgbuf(cmd,vfd,p);
|
| 817 |
|
|
break;
|
| 818 |
|
|
}
|
| 819 |
|
|
case VIDIOC_OVERLAY:
|
| 820 |
|
|
{
|
| 821 |
|
|
int *i = arg;
|
| 822 |
|
|
|
| 823 |
|
|
if (!vfd->vidioc_overlay)
|
| 824 |
|
|
break;
|
| 825 |
|
|
dbgarg (cmd, "value=%d\n",*i);
|
| 826 |
|
|
ret=vfd->vidioc_overlay(file, fh, *i);
|
| 827 |
|
|
break;
|
| 828 |
|
|
}
|
| 829 |
|
|
case VIDIOC_G_FBUF:
|
| 830 |
|
|
{
|
| 831 |
|
|
struct v4l2_framebuffer *p=arg;
|
| 832 |
|
|
if (!vfd->vidioc_g_fbuf)
|
| 833 |
|
|
break;
|
| 834 |
|
|
ret=vfd->vidioc_g_fbuf(file, fh, arg);
|
| 835 |
|
|
if (!ret) {
|
| 836 |
|
|
dbgarg (cmd, "capability=%d, flags=%d, base=0x%08lx\n",
|
| 837 |
|
|
p->capability,p->flags,
|
| 838 |
|
|
(unsigned long)p->base);
|
| 839 |
|
|
v4l_print_pix_fmt (vfd, &p->fmt);
|
| 840 |
|
|
}
|
| 841 |
|
|
break;
|
| 842 |
|
|
}
|
| 843 |
|
|
case VIDIOC_S_FBUF:
|
| 844 |
|
|
{
|
| 845 |
|
|
struct v4l2_framebuffer *p=arg;
|
| 846 |
|
|
if (!vfd->vidioc_s_fbuf)
|
| 847 |
|
|
break;
|
| 848 |
|
|
|
| 849 |
|
|
dbgarg (cmd, "capability=%d, flags=%d, base=0x%08lx\n",
|
| 850 |
|
|
p->capability,p->flags,(unsigned long)p->base);
|
| 851 |
|
|
v4l_print_pix_fmt (vfd, &p->fmt);
|
| 852 |
|
|
ret=vfd->vidioc_s_fbuf(file, fh, arg);
|
| 853 |
|
|
|
| 854 |
|
|
break;
|
| 855 |
|
|
}
|
| 856 |
|
|
case VIDIOC_STREAMON:
|
| 857 |
|
|
{
|
| 858 |
|
|
enum v4l2_buf_type i = *(int *)arg;
|
| 859 |
|
|
if (!vfd->vidioc_streamon)
|
| 860 |
|
|
break;
|
| 861 |
|
|
dbgarg (cmd, "type=%s\n", prt_names(i,v4l2_type_names_FIXME));
|
| 862 |
|
|
ret=vfd->vidioc_streamon(file, fh,i);
|
| 863 |
|
|
break;
|
| 864 |
|
|
}
|
| 865 |
|
|
case VIDIOC_STREAMOFF:
|
| 866 |
|
|
{
|
| 867 |
|
|
enum v4l2_buf_type i = *(int *)arg;
|
| 868 |
|
|
|
| 869 |
|
|
if (!vfd->vidioc_streamoff)
|
| 870 |
|
|
break;
|
| 871 |
|
|
dbgarg (cmd, "type=%s\n", prt_names(i,v4l2_type_names_FIXME));
|
| 872 |
|
|
ret=vfd->vidioc_streamoff(file, fh, i);
|
| 873 |
|
|
break;
|
| 874 |
|
|
}
|
| 875 |
|
|
/* ---------- tv norms ---------- */
|
| 876 |
|
|
case VIDIOC_ENUMSTD:
|
| 877 |
|
|
{
|
| 878 |
|
|
struct v4l2_standard *p = arg;
|
| 879 |
|
|
v4l2_std_id id = vfd->tvnorms,curr_id=0;
|
| 880 |
|
|
unsigned int index = p->index,i;
|
| 881 |
|
|
|
| 882 |
|
|
if (index<0) {
|
| 883 |
|
|
ret=-EINVAL;
|
| 884 |
|
|
break;
|
| 885 |
|
|
}
|
| 886 |
|
|
|
| 887 |
|
|
/* Return norm array on a canonical way */
|
| 888 |
|
|
for (i=0;i<= index && id; i++) {
|
| 889 |
|
|
if ( (id & V4L2_STD_PAL) == V4L2_STD_PAL) {
|
| 890 |
|
|
curr_id = V4L2_STD_PAL;
|
| 891 |
|
|
} else if ( (id & V4L2_STD_PAL_BG) == V4L2_STD_PAL_BG) {
|
| 892 |
|
|
curr_id = V4L2_STD_PAL_BG;
|
| 893 |
|
|
} else if ( (id & V4L2_STD_PAL_DK) == V4L2_STD_PAL_DK) {
|
| 894 |
|
|
curr_id = V4L2_STD_PAL_DK;
|
| 895 |
|
|
} else if ( (id & V4L2_STD_PAL_B) == V4L2_STD_PAL_B) {
|
| 896 |
|
|
curr_id = V4L2_STD_PAL_B;
|
| 897 |
|
|
} else if ( (id & V4L2_STD_PAL_B1) == V4L2_STD_PAL_B1) {
|
| 898 |
|
|
curr_id = V4L2_STD_PAL_B1;
|
| 899 |
|
|
} else if ( (id & V4L2_STD_PAL_G) == V4L2_STD_PAL_G) {
|
| 900 |
|
|
curr_id = V4L2_STD_PAL_G;
|
| 901 |
|
|
} else if ( (id & V4L2_STD_PAL_H) == V4L2_STD_PAL_H) {
|
| 902 |
|
|
curr_id = V4L2_STD_PAL_H;
|
| 903 |
|
|
} else if ( (id & V4L2_STD_PAL_I) == V4L2_STD_PAL_I) {
|
| 904 |
|
|
curr_id = V4L2_STD_PAL_I;
|
| 905 |
|
|
} else if ( (id & V4L2_STD_PAL_D) == V4L2_STD_PAL_D) {
|
| 906 |
|
|
curr_id = V4L2_STD_PAL_D;
|
| 907 |
|
|
} else if ( (id & V4L2_STD_PAL_D1) == V4L2_STD_PAL_D1) {
|
| 908 |
|
|
curr_id = V4L2_STD_PAL_D1;
|
| 909 |
|
|
} else if ( (id & V4L2_STD_PAL_K) == V4L2_STD_PAL_K) {
|
| 910 |
|
|
curr_id = V4L2_STD_PAL_K;
|
| 911 |
|
|
} else if ( (id & V4L2_STD_PAL_M) == V4L2_STD_PAL_M) {
|
| 912 |
|
|
curr_id = V4L2_STD_PAL_M;
|
| 913 |
|
|
} else if ( (id & V4L2_STD_PAL_N) == V4L2_STD_PAL_N) {
|
| 914 |
|
|
curr_id = V4L2_STD_PAL_N;
|
| 915 |
|
|
} else if ( (id & V4L2_STD_PAL_Nc) == V4L2_STD_PAL_Nc) {
|
| 916 |
|
|
curr_id = V4L2_STD_PAL_Nc;
|
| 917 |
|
|
} else if ( (id & V4L2_STD_PAL_60) == V4L2_STD_PAL_60) {
|
| 918 |
|
|
curr_id = V4L2_STD_PAL_60;
|
| 919 |
|
|
} else if ( (id & V4L2_STD_NTSC) == V4L2_STD_NTSC) {
|
| 920 |
|
|
curr_id = V4L2_STD_NTSC;
|
| 921 |
|
|
} else if ( (id & V4L2_STD_NTSC_M) == V4L2_STD_NTSC_M) {
|
| 922 |
|
|
curr_id = V4L2_STD_NTSC_M;
|
| 923 |
|
|
} else if ( (id & V4L2_STD_NTSC_M_JP) == V4L2_STD_NTSC_M_JP) {
|
| 924 |
|
|
curr_id = V4L2_STD_NTSC_M_JP;
|
| 925 |
|
|
} else if ( (id & V4L2_STD_NTSC_443) == V4L2_STD_NTSC_443) {
|
| 926 |
|
|
curr_id = V4L2_STD_NTSC_443;
|
| 927 |
|
|
} else if ( (id & V4L2_STD_NTSC_M_KR) == V4L2_STD_NTSC_M_KR) {
|
| 928 |
|
|
curr_id = V4L2_STD_NTSC_M_KR;
|
| 929 |
|
|
} else if ( (id & V4L2_STD_SECAM) == V4L2_STD_SECAM) {
|
| 930 |
|
|
curr_id = V4L2_STD_SECAM;
|
| 931 |
|
|
} else if ( (id & V4L2_STD_SECAM_DK) == V4L2_STD_SECAM_DK) {
|
| 932 |
|
|
curr_id = V4L2_STD_SECAM_DK;
|
| 933 |
|
|
} else if ( (id & V4L2_STD_SECAM_B) == V4L2_STD_SECAM_B) {
|
| 934 |
|
|
curr_id = V4L2_STD_SECAM_B;
|
| 935 |
|
|
} else if ( (id & V4L2_STD_SECAM_D) == V4L2_STD_SECAM_D) {
|
| 936 |
|
|
curr_id = V4L2_STD_SECAM_D;
|
| 937 |
|
|
} else if ( (id & V4L2_STD_SECAM_G) == V4L2_STD_SECAM_G) {
|
| 938 |
|
|
curr_id = V4L2_STD_SECAM_G;
|
| 939 |
|
|
} else if ( (id & V4L2_STD_SECAM_H) == V4L2_STD_SECAM_H) {
|
| 940 |
|
|
curr_id = V4L2_STD_SECAM_H;
|
| 941 |
|
|
} else if ( (id & V4L2_STD_SECAM_K) == V4L2_STD_SECAM_K) {
|
| 942 |
|
|
curr_id = V4L2_STD_SECAM_K;
|
| 943 |
|
|
} else if ( (id & V4L2_STD_SECAM_K1) == V4L2_STD_SECAM_K1) {
|
| 944 |
|
|
curr_id = V4L2_STD_SECAM_K1;
|
| 945 |
|
|
} else if ( (id & V4L2_STD_SECAM_L) == V4L2_STD_SECAM_L) {
|
| 946 |
|
|
curr_id = V4L2_STD_SECAM_L;
|
| 947 |
|
|
} else if ( (id & V4L2_STD_SECAM_LC) == V4L2_STD_SECAM_LC) {
|
| 948 |
|
|
curr_id = V4L2_STD_SECAM_LC;
|
| 949 |
|
|
} else {
|
| 950 |
|
|
break;
|
| 951 |
|
|
}
|
| 952 |
|
|
id &= ~curr_id;
|
| 953 |
|
|
}
|
| 954 |
|
|
if (i<=index)
|
| 955 |
|
|
return -EINVAL;
|
| 956 |
|
|
|
| 957 |
|
|
v4l2_video_std_construct(p, curr_id,v4l2_norm_to_name(curr_id));
|
| 958 |
|
|
p->index = index;
|
| 959 |
|
|
|
| 960 |
|
|
dbgarg (cmd, "index=%d, id=%Ld, name=%s, fps=%d/%d, "
|
| 961 |
|
|
"framelines=%d\n", p->index,
|
| 962 |
|
|
(unsigned long long)p->id, p->name,
|
| 963 |
|
|
p->frameperiod.numerator,
|
| 964 |
|
|
p->frameperiod.denominator,
|
| 965 |
|
|
p->framelines);
|
| 966 |
|
|
|
| 967 |
|
|
ret=0;
|
| 968 |
|
|
break;
|
| 969 |
|
|
}
|
| 970 |
|
|
case VIDIOC_G_STD:
|
| 971 |
|
|
{
|
| 972 |
|
|
v4l2_std_id *id = arg;
|
| 973 |
|
|
|
| 974 |
|
|
*id = vfd->current_norm;
|
| 975 |
|
|
|
| 976 |
|
|
dbgarg (cmd, "value=%Lu\n", (long long unsigned) *id);
|
| 977 |
|
|
|
| 978 |
|
|
ret=0;
|
| 979 |
|
|
break;
|
| 980 |
|
|
}
|
| 981 |
|
|
case VIDIOC_S_STD:
|
| 982 |
|
|
{
|
| 983 |
|
|
v4l2_std_id *id = arg,norm;
|
| 984 |
|
|
|
| 985 |
|
|
dbgarg (cmd, "value=%Lu\n", (long long unsigned) *id);
|
| 986 |
|
|
|
| 987 |
|
|
norm = (*id) & vfd->tvnorms;
|
| 988 |
|
|
if ( vfd->tvnorms && !norm) /* Check if std is supported */
|
| 989 |
|
|
break;
|
| 990 |
|
|
|
| 991 |
|
|
/* Calls the specific handler */
|
| 992 |
|
|
if (vfd->vidioc_s_std)
|
| 993 |
|
|
ret=vfd->vidioc_s_std(file, fh, &norm);
|
| 994 |
|
|
else
|
| 995 |
|
|
ret=-EINVAL;
|
| 996 |
|
|
|
| 997 |
|
|
/* Updates standard information */
|
| 998 |
|
|
if (ret>=0)
|
| 999 |
|
|
vfd->current_norm=norm;
|
| 1000 |
|
|
|
| 1001 |
|
|
break;
|
| 1002 |
|
|
}
|
| 1003 |
|
|
case VIDIOC_QUERYSTD:
|
| 1004 |
|
|
{
|
| 1005 |
|
|
v4l2_std_id *p=arg;
|
| 1006 |
|
|
|
| 1007 |
|
|
if (!vfd->vidioc_querystd)
|
| 1008 |
|
|
break;
|
| 1009 |
|
|
ret=vfd->vidioc_querystd(file, fh, arg);
|
| 1010 |
|
|
if (!ret)
|
| 1011 |
|
|
dbgarg (cmd, "detected std=%Lu\n",
|
| 1012 |
|
|
(unsigned long long)*p);
|
| 1013 |
|
|
break;
|
| 1014 |
|
|
}
|
| 1015 |
|
|
/* ------ input switching ---------- */
|
| 1016 |
|
|
/* FIXME: Inputs can be handled inside videodev2 */
|
| 1017 |
|
|
case VIDIOC_ENUMINPUT:
|
| 1018 |
|
|
{
|
| 1019 |
|
|
struct v4l2_input *p=arg;
|
| 1020 |
|
|
int i=p->index;
|
| 1021 |
|
|
|
| 1022 |
|
|
if (!vfd->vidioc_enum_input)
|
| 1023 |
|
|
break;
|
| 1024 |
|
|
memset(p, 0, sizeof(*p));
|
| 1025 |
|
|
p->index=i;
|
| 1026 |
|
|
|
| 1027 |
|
|
ret=vfd->vidioc_enum_input(file, fh, p);
|
| 1028 |
|
|
if (!ret)
|
| 1029 |
|
|
dbgarg (cmd, "index=%d, name=%s, type=%d, "
|
| 1030 |
|
|
"audioset=%d, "
|
| 1031 |
|
|
"tuner=%d, std=%Ld, status=%d\n",
|
| 1032 |
|
|
p->index,p->name,p->type,p->audioset,
|
| 1033 |
|
|
p->tuner,
|
| 1034 |
|
|
(unsigned long long)p->std,
|
| 1035 |
|
|
p->status);
|
| 1036 |
|
|
break;
|
| 1037 |
|
|
}
|
| 1038 |
|
|
case VIDIOC_G_INPUT:
|
| 1039 |
|
|
{
|
| 1040 |
|
|
unsigned int *i = arg;
|
| 1041 |
|
|
|
| 1042 |
|
|
if (!vfd->vidioc_g_input)
|
| 1043 |
|
|
break;
|
| 1044 |
|
|
ret=vfd->vidioc_g_input(file, fh, i);
|
| 1045 |
|
|
if (!ret)
|
| 1046 |
|
|
dbgarg (cmd, "value=%d\n",*i);
|
| 1047 |
|
|
break;
|
| 1048 |
|
|
}
|
| 1049 |
|
|
case VIDIOC_S_INPUT:
|
| 1050 |
|
|
{
|
| 1051 |
|
|
unsigned int *i = arg;
|
| 1052 |
|
|
|
| 1053 |
|
|
if (!vfd->vidioc_s_input)
|
| 1054 |
|
|
break;
|
| 1055 |
|
|
dbgarg (cmd, "value=%d\n",*i);
|
| 1056 |
|
|
ret=vfd->vidioc_s_input(file, fh, *i);
|
| 1057 |
|
|
break;
|
| 1058 |
|
|
}
|
| 1059 |
|
|
|
| 1060 |
|
|
/* ------ output switching ---------- */
|
| 1061 |
|
|
case VIDIOC_G_OUTPUT:
|
| 1062 |
|
|
{
|
| 1063 |
|
|
unsigned int *i = arg;
|
| 1064 |
|
|
|
| 1065 |
|
|
if (!vfd->vidioc_g_output)
|
| 1066 |
|
|
break;
|
| 1067 |
|
|
ret=vfd->vidioc_g_output(file, fh, i);
|
| 1068 |
|
|
if (!ret)
|
| 1069 |
|
|
dbgarg (cmd, "value=%d\n",*i);
|
| 1070 |
|
|
break;
|
| 1071 |
|
|
}
|
| 1072 |
|
|
case VIDIOC_S_OUTPUT:
|
| 1073 |
|
|
{
|
| 1074 |
|
|
unsigned int *i = arg;
|
| 1075 |
|
|
|
| 1076 |
|
|
if (!vfd->vidioc_s_output)
|
| 1077 |
|
|
break;
|
| 1078 |
|
|
dbgarg (cmd, "value=%d\n",*i);
|
| 1079 |
|
|
ret=vfd->vidioc_s_output(file, fh, *i);
|
| 1080 |
|
|
break;
|
| 1081 |
|
|
}
|
| 1082 |
|
|
|
| 1083 |
|
|
/* --- controls ---------------------------------------------- */
|
| 1084 |
|
|
case VIDIOC_QUERYCTRL:
|
| 1085 |
|
|
{
|
| 1086 |
|
|
struct v4l2_queryctrl *p=arg;
|
| 1087 |
|
|
|
| 1088 |
|
|
if (!vfd->vidioc_queryctrl)
|
| 1089 |
|
|
break;
|
| 1090 |
|
|
ret=vfd->vidioc_queryctrl(file, fh, p);
|
| 1091 |
|
|
|
| 1092 |
|
|
if (!ret)
|
| 1093 |
|
|
dbgarg (cmd, "id=%d, type=%d, name=%s, "
|
| 1094 |
|
|
"min/max=%d/%d,"
|
| 1095 |
|
|
" step=%d, default=%d, flags=0x%08x\n",
|
| 1096 |
|
|
p->id,p->type,p->name,p->minimum,
|
| 1097 |
|
|
p->maximum,p->step,p->default_value,
|
| 1098 |
|
|
p->flags);
|
| 1099 |
|
|
break;
|
| 1100 |
|
|
}
|
| 1101 |
|
|
case VIDIOC_G_CTRL:
|
| 1102 |
|
|
{
|
| 1103 |
|
|
struct v4l2_control *p = arg;
|
| 1104 |
|
|
|
| 1105 |
|
|
if (!vfd->vidioc_g_ctrl)
|
| 1106 |
|
|
break;
|
| 1107 |
|
|
dbgarg(cmd, "Enum for index=%d\n", p->id);
|
| 1108 |
|
|
|
| 1109 |
|
|
ret=vfd->vidioc_g_ctrl(file, fh, p);
|
| 1110 |
|
|
if (!ret)
|
| 1111 |
|
|
dbgarg2 ( "id=%d, value=%d\n", p->id, p->value);
|
| 1112 |
|
|
break;
|
| 1113 |
|
|
}
|
| 1114 |
|
|
case VIDIOC_S_CTRL:
|
| 1115 |
|
|
{
|
| 1116 |
|
|
struct v4l2_control *p = arg;
|
| 1117 |
|
|
|
| 1118 |
|
|
if (!vfd->vidioc_s_ctrl)
|
| 1119 |
|
|
break;
|
| 1120 |
|
|
dbgarg (cmd, "id=%d, value=%d\n", p->id, p->value);
|
| 1121 |
|
|
|
| 1122 |
|
|
ret=vfd->vidioc_s_ctrl(file, fh, p);
|
| 1123 |
|
|
break;
|
| 1124 |
|
|
}
|
| 1125 |
|
|
case VIDIOC_G_EXT_CTRLS:
|
| 1126 |
|
|
{
|
| 1127 |
|
|
struct v4l2_ext_controls *p = arg;
|
| 1128 |
|
|
|
| 1129 |
|
|
if (vfd->vidioc_g_ext_ctrls) {
|
| 1130 |
|
|
dbgarg(cmd, "count=%d\n", p->count);
|
| 1131 |
|
|
|
| 1132 |
|
|
ret=vfd->vidioc_g_ext_ctrls(file, fh, p);
|
| 1133 |
|
|
}
|
| 1134 |
|
|
break;
|
| 1135 |
|
|
}
|
| 1136 |
|
|
case VIDIOC_S_EXT_CTRLS:
|
| 1137 |
|
|
{
|
| 1138 |
|
|
struct v4l2_ext_controls *p = arg;
|
| 1139 |
|
|
|
| 1140 |
|
|
if (vfd->vidioc_s_ext_ctrls) {
|
| 1141 |
|
|
dbgarg(cmd, "count=%d\n", p->count);
|
| 1142 |
|
|
|
| 1143 |
|
|
ret=vfd->vidioc_s_ext_ctrls(file, fh, p);
|
| 1144 |
|
|
}
|
| 1145 |
|
|
break;
|
| 1146 |
|
|
}
|
| 1147 |
|
|
case VIDIOC_TRY_EXT_CTRLS:
|
| 1148 |
|
|
{
|
| 1149 |
|
|
struct v4l2_ext_controls *p = arg;
|
| 1150 |
|
|
|
| 1151 |
|
|
if (vfd->vidioc_try_ext_ctrls) {
|
| 1152 |
|
|
dbgarg(cmd, "count=%d\n", p->count);
|
| 1153 |
|
|
|
| 1154 |
|
|
ret=vfd->vidioc_try_ext_ctrls(file, fh, p);
|
| 1155 |
|
|
}
|
| 1156 |
|
|
break;
|
| 1157 |
|
|
}
|
| 1158 |
|
|
case VIDIOC_QUERYMENU:
|
| 1159 |
|
|
{
|
| 1160 |
|
|
struct v4l2_querymenu *p=arg;
|
| 1161 |
|
|
if (!vfd->vidioc_querymenu)
|
| 1162 |
|
|
break;
|
| 1163 |
|
|
ret=vfd->vidioc_querymenu(file, fh, p);
|
| 1164 |
|
|
if (!ret)
|
| 1165 |
|
|
dbgarg (cmd, "id=%d, index=%d, name=%s\n",
|
| 1166 |
|
|
p->id,p->index,p->name);
|
| 1167 |
|
|
break;
|
| 1168 |
|
|
}
|
| 1169 |
|
|
/* --- audio ---------------------------------------------- */
|
| 1170 |
|
|
case VIDIOC_ENUMAUDIO:
|
| 1171 |
|
|
{
|
| 1172 |
|
|
struct v4l2_audio *p=arg;
|
| 1173 |
|
|
|
| 1174 |
|
|
if (!vfd->vidioc_enumaudio)
|
| 1175 |
|
|
break;
|
| 1176 |
|
|
dbgarg(cmd, "Enum for index=%d\n", p->index);
|
| 1177 |
|
|
ret=vfd->vidioc_enumaudio(file, fh, p);
|
| 1178 |
|
|
if (!ret)
|
| 1179 |
|
|
dbgarg2("index=%d, name=%s, capability=%d, "
|
| 1180 |
|
|
"mode=%d\n",p->index,p->name,
|
| 1181 |
|
|
p->capability, p->mode);
|
| 1182 |
|
|
break;
|
| 1183 |
|
|
}
|
| 1184 |
|
|
case VIDIOC_G_AUDIO:
|
| 1185 |
|
|
{
|
| 1186 |
|
|
struct v4l2_audio *p=arg;
|
| 1187 |
|
|
__u32 index=p->index;
|
| 1188 |
|
|
|
| 1189 |
|
|
if (!vfd->vidioc_g_audio)
|
| 1190 |
|
|
break;
|
| 1191 |
|
|
|
| 1192 |
|
|
memset(p,0,sizeof(*p));
|
| 1193 |
|
|
p->index=index;
|
| 1194 |
|
|
dbgarg(cmd, "Get for index=%d\n", p->index);
|
| 1195 |
|
|
ret=vfd->vidioc_g_audio(file, fh, p);
|
| 1196 |
|
|
if (!ret)
|
| 1197 |
|
|
dbgarg2("index=%d, name=%s, capability=%d, "
|
| 1198 |
|
|
"mode=%d\n",p->index,
|
| 1199 |
|
|
p->name,p->capability, p->mode);
|
| 1200 |
|
|
break;
|
| 1201 |
|
|
}
|
| 1202 |
|
|
case VIDIOC_S_AUDIO:
|
| 1203 |
|
|
{
|
| 1204 |
|
|
struct v4l2_audio *p=arg;
|
| 1205 |
|
|
|
| 1206 |
|
|
if (!vfd->vidioc_s_audio)
|
| 1207 |
|
|
break;
|
| 1208 |
|
|
dbgarg(cmd, "index=%d, name=%s, capability=%d, "
|
| 1209 |
|
|
"mode=%d\n", p->index, p->name,
|
| 1210 |
|
|
p->capability, p->mode);
|
| 1211 |
|
|
ret=vfd->vidioc_s_audio(file, fh, p);
|
| 1212 |
|
|
break;
|
| 1213 |
|
|
}
|
| 1214 |
|
|
case VIDIOC_ENUMAUDOUT:
|
| 1215 |
|
|
{
|
| 1216 |
|
|
struct v4l2_audioout *p=arg;
|
| 1217 |
|
|
|
| 1218 |
|
|
if (!vfd->vidioc_enumaudout)
|
| 1219 |
|
|
break;
|
| 1220 |
|
|
dbgarg(cmd, "Enum for index=%d\n", p->index);
|
| 1221 |
|
|
ret=vfd->vidioc_enumaudout(file, fh, p);
|
| 1222 |
|
|
if (!ret)
|
| 1223 |
|
|
dbgarg2("index=%d, name=%s, capability=%d, "
|
| 1224 |
|
|
"mode=%d\n", p->index, p->name,
|
| 1225 |
|
|
p->capability,p->mode);
|
| 1226 |
|
|
break;
|
| 1227 |
|
|
}
|
| 1228 |
|
|
case VIDIOC_G_AUDOUT:
|
| 1229 |
|
|
{
|
| 1230 |
|
|
struct v4l2_audioout *p=arg;
|
| 1231 |
|
|
|
| 1232 |
|
|
if (!vfd->vidioc_g_audout)
|
| 1233 |
|
|
break;
|
| 1234 |
|
|
dbgarg(cmd, "Enum for index=%d\n", p->index);
|
| 1235 |
|
|
ret=vfd->vidioc_g_audout(file, fh, p);
|
| 1236 |
|
|
if (!ret)
|
| 1237 |
|
|
dbgarg2("index=%d, name=%s, capability=%d, "
|
| 1238 |
|
|
"mode=%d\n", p->index, p->name,
|
| 1239 |
|
|
p->capability,p->mode);
|
| 1240 |
|
|
break;
|
| 1241 |
|
|
}
|
| 1242 |
|
|
case VIDIOC_S_AUDOUT:
|
| 1243 |
|
|
{
|
| 1244 |
|
|
struct v4l2_audioout *p=arg;
|
| 1245 |
|
|
|
| 1246 |
|
|
if (!vfd->vidioc_s_audout)
|
| 1247 |
|
|
break;
|
| 1248 |
|
|
dbgarg(cmd, "index=%d, name=%s, capability=%d, "
|
| 1249 |
|
|
"mode=%d\n", p->index, p->name,
|
| 1250 |
|
|
p->capability,p->mode);
|
| 1251 |
|
|
|
| 1252 |
|
|
ret=vfd->vidioc_s_audout(file, fh, p);
|
| 1253 |
|
|
break;
|
| 1254 |
|
|
}
|
| 1255 |
|
|
case VIDIOC_G_MODULATOR:
|
| 1256 |
|
|
{
|
| 1257 |
|
|
struct v4l2_modulator *p=arg;
|
| 1258 |
|
|
if (!vfd->vidioc_g_modulator)
|
| 1259 |
|
|
break;
|
| 1260 |
|
|
ret=vfd->vidioc_g_modulator(file, fh, p);
|
| 1261 |
|
|
if (!ret)
|
| 1262 |
|
|
dbgarg(cmd, "index=%d, name=%s, "
|
| 1263 |
|
|
"capability=%d, rangelow=%d,"
|
| 1264 |
|
|
" rangehigh=%d, txsubchans=%d\n",
|
| 1265 |
|
|
p->index, p->name,p->capability,
|
| 1266 |
|
|
p->rangelow, p->rangehigh,
|
| 1267 |
|
|
p->txsubchans);
|
| 1268 |
|
|
break;
|
| 1269 |
|
|
}
|
| 1270 |
|
|
case VIDIOC_S_MODULATOR:
|
| 1271 |
|
|
{
|
| 1272 |
|
|
struct v4l2_modulator *p=arg;
|
| 1273 |
|
|
if (!vfd->vidioc_s_modulator)
|
| 1274 |
|
|
break;
|
| 1275 |
|
|
dbgarg(cmd, "index=%d, name=%s, capability=%d, "
|
| 1276 |
|
|
"rangelow=%d, rangehigh=%d, txsubchans=%d\n",
|
| 1277 |
|
|
p->index, p->name,p->capability,p->rangelow,
|
| 1278 |
|
|
p->rangehigh,p->txsubchans);
|
| 1279 |
|
|
ret=vfd->vidioc_s_modulator(file, fh, p);
|
| 1280 |
|
|
break;
|
| 1281 |
|
|
}
|
| 1282 |
|
|
case VIDIOC_G_CROP:
|
| 1283 |
|
|
{
|
| 1284 |
|
|
struct v4l2_crop *p=arg;
|
| 1285 |
|
|
if (!vfd->vidioc_g_crop)
|
| 1286 |
|
|
break;
|
| 1287 |
|
|
ret=vfd->vidioc_g_crop(file, fh, p);
|
| 1288 |
|
|
if (!ret) {
|
| 1289 |
|
|
dbgarg(cmd, "type=%d\n", p->type);
|
| 1290 |
|
|
dbgrect(vfd, "", &p->c);
|
| 1291 |
|
|
}
|
| 1292 |
|
|
break;
|
| 1293 |
|
|
}
|
| 1294 |
|
|
case VIDIOC_S_CROP:
|
| 1295 |
|
|
{
|
| 1296 |
|
|
struct v4l2_crop *p=arg;
|
| 1297 |
|
|
if (!vfd->vidioc_s_crop)
|
| 1298 |
|
|
break;
|
| 1299 |
|
|
dbgarg(cmd, "type=%d\n", p->type);
|
| 1300 |
|
|
dbgrect(vfd, "", &p->c);
|
| 1301 |
|
|
ret=vfd->vidioc_s_crop(file, fh, p);
|
| 1302 |
|
|
break;
|
| 1303 |
|
|
}
|
| 1304 |
|
|
case VIDIOC_CROPCAP:
|
| 1305 |
|
|
{
|
| 1306 |
|
|
struct v4l2_cropcap *p=arg;
|
| 1307 |
|
|
/*FIXME: Should also show v4l2_fract pixelaspect */
|
| 1308 |
|
|
if (!vfd->vidioc_cropcap)
|
| 1309 |
|
|
break;
|
| 1310 |
|
|
dbgarg(cmd, "type=%d\n", p->type);
|
| 1311 |
|
|
dbgrect(vfd, "bounds ", &p->bounds);
|
| 1312 |
|
|
dbgrect(vfd, "defrect ", &p->defrect);
|
| 1313 |
|
|
ret=vfd->vidioc_cropcap(file, fh, p);
|
| 1314 |
|
|
break;
|
| 1315 |
|
|
}
|
| 1316 |
|
|
case VIDIOC_G_JPEGCOMP:
|
| 1317 |
|
|
{
|
| 1318 |
|
|
struct v4l2_jpegcompression *p=arg;
|
| 1319 |
|
|
if (!vfd->vidioc_g_jpegcomp)
|
| 1320 |
|
|
break;
|
| 1321 |
|
|
ret=vfd->vidioc_g_jpegcomp(file, fh, p);
|
| 1322 |
|
|
if (!ret)
|
| 1323 |
|
|
dbgarg (cmd, "quality=%d, APPn=%d, "
|
| 1324 |
|
|
"APP_len=%d, COM_len=%d, "
|
| 1325 |
|
|
"jpeg_markers=%d\n",
|
| 1326 |
|
|
p->quality,p->APPn,p->APP_len,
|
| 1327 |
|
|
p->COM_len,p->jpeg_markers);
|
| 1328 |
|
|
break;
|
| 1329 |
|
|
}
|
| 1330 |
|
|
case VIDIOC_S_JPEGCOMP:
|
| 1331 |
|
|
{
|
| 1332 |
|
|
struct v4l2_jpegcompression *p=arg;
|
| 1333 |
|
|
if (!vfd->vidioc_g_jpegcomp)
|
| 1334 |
|
|
break;
|
| 1335 |
|
|
dbgarg (cmd, "quality=%d, APPn=%d, APP_len=%d, "
|
| 1336 |
|
|
"COM_len=%d, jpeg_markers=%d\n",
|
| 1337 |
|
|
p->quality,p->APPn,p->APP_len,
|
| 1338 |
|
|
p->COM_len,p->jpeg_markers);
|
| 1339 |
|
|
ret=vfd->vidioc_s_jpegcomp(file, fh, p);
|
| 1340 |
|
|
break;
|
| 1341 |
|
|
}
|
| 1342 |
|
|
case VIDIOC_G_ENC_INDEX:
|
| 1343 |
|
|
{
|
| 1344 |
|
|
struct v4l2_enc_idx *p=arg;
|
| 1345 |
|
|
|
| 1346 |
|
|
if (!vfd->vidioc_g_enc_index)
|
| 1347 |
|
|
break;
|
| 1348 |
|
|
ret=vfd->vidioc_g_enc_index(file, fh, p);
|
| 1349 |
|
|
if (!ret)
|
| 1350 |
|
|
dbgarg (cmd, "entries=%d, entries_cap=%d\n",
|
| 1351 |
|
|
p->entries,p->entries_cap);
|
| 1352 |
|
|
break;
|
| 1353 |
|
|
}
|
| 1354 |
|
|
case VIDIOC_ENCODER_CMD:
|
| 1355 |
|
|
{
|
| 1356 |
|
|
struct v4l2_encoder_cmd *p=arg;
|
| 1357 |
|
|
|
| 1358 |
|
|
if (!vfd->vidioc_encoder_cmd)
|
| 1359 |
|
|
break;
|
| 1360 |
|
|
ret=vfd->vidioc_encoder_cmd(file, fh, p);
|
| 1361 |
|
|
if (!ret)
|
| 1362 |
|
|
dbgarg (cmd, "cmd=%d, flags=%d\n",
|
| 1363 |
|
|
p->cmd,p->flags);
|
| 1364 |
|
|
break;
|
| 1365 |
|
|
}
|
| 1366 |
|
|
case VIDIOC_TRY_ENCODER_CMD:
|
| 1367 |
|
|
{
|
| 1368 |
|
|
struct v4l2_encoder_cmd *p=arg;
|
| 1369 |
|
|
|
| 1370 |
|
|
if (!vfd->vidioc_try_encoder_cmd)
|
| 1371 |
|
|
break;
|
| 1372 |
|
|
ret=vfd->vidioc_try_encoder_cmd(file, fh, p);
|
| 1373 |
|
|
if (!ret)
|
| 1374 |
|
|
dbgarg (cmd, "cmd=%d, flags=%d\n",
|
| 1375 |
|
|
p->cmd,p->flags);
|
| 1376 |
|
|
break;
|
| 1377 |
|
|
}
|
| 1378 |
|
|
case VIDIOC_G_PARM:
|
| 1379 |
|
|
{
|
| 1380 |
|
|
struct v4l2_streamparm *p=arg;
|
| 1381 |
|
|
__u32 type=p->type;
|
| 1382 |
|
|
|
| 1383 |
|
|
memset(p,0,sizeof(*p));
|
| 1384 |
|
|
p->type=type;
|
| 1385 |
|
|
|
| 1386 |
|
|
if (vfd->vidioc_g_parm) {
|
| 1387 |
|
|
ret=vfd->vidioc_g_parm(file, fh, p);
|
| 1388 |
|
|
} else {
|
| 1389 |
|
|
struct v4l2_standard s;
|
| 1390 |
|
|
|
| 1391 |
|
|
if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
| 1392 |
|
|
return -EINVAL;
|
| 1393 |
|
|
|
| 1394 |
|
|
v4l2_video_std_construct(&s, vfd->current_norm,
|
| 1395 |
|
|
v4l2_norm_to_name(vfd->current_norm));
|
| 1396 |
|
|
|
| 1397 |
|
|
p->parm.capture.timeperframe = s.frameperiod;
|
| 1398 |
|
|
ret=0;
|
| 1399 |
|
|
}
|
| 1400 |
|
|
|
| 1401 |
|
|
dbgarg (cmd, "type=%d\n", p->type);
|
| 1402 |
|
|
break;
|
| 1403 |
|
|
}
|
| 1404 |
|
|
case VIDIOC_S_PARM:
|
| 1405 |
|
|
{
|
| 1406 |
|
|
struct v4l2_streamparm *p=arg;
|
| 1407 |
|
|
if (!vfd->vidioc_s_parm)
|
| 1408 |
|
|
break;
|
| 1409 |
|
|
dbgarg (cmd, "type=%d\n", p->type);
|
| 1410 |
|
|
ret=vfd->vidioc_s_parm(file, fh, p);
|
| 1411 |
|
|
break;
|
| 1412 |
|
|
}
|
| 1413 |
|
|
case VIDIOC_G_TUNER:
|
| 1414 |
|
|
{
|
| 1415 |
|
|
struct v4l2_tuner *p=arg;
|
| 1416 |
|
|
__u32 index=p->index;
|
| 1417 |
|
|
|
| 1418 |
|
|
if (!vfd->vidioc_g_tuner)
|
| 1419 |
|
|
break;
|
| 1420 |
|
|
|
| 1421 |
|
|
memset(p,0,sizeof(*p));
|
| 1422 |
|
|
p->index=index;
|
| 1423 |
|
|
|
| 1424 |
|
|
ret=vfd->vidioc_g_tuner(file, fh, p);
|
| 1425 |
|
|
if (!ret)
|
| 1426 |
|
|
dbgarg (cmd, "index=%d, name=%s, type=%d, "
|
| 1427 |
|
|
"capability=%d, rangelow=%d, "
|
| 1428 |
|
|
"rangehigh=%d, signal=%d, afc=%d, "
|
| 1429 |
|
|
"rxsubchans=%d, audmode=%d\n",
|
| 1430 |
|
|
p->index, p->name, p->type,
|
| 1431 |
|
|
p->capability, p->rangelow,
|
| 1432 |
|
|
p->rangehigh, p->rxsubchans,
|
| 1433 |
|
|
p->audmode, p->signal, p->afc);
|
| 1434 |
|
|
break;
|
| 1435 |
|
|
}
|
| 1436 |
|
|
case VIDIOC_S_TUNER:
|
| 1437 |
|
|
{
|
| 1438 |
|
|
struct v4l2_tuner *p=arg;
|
| 1439 |
|
|
if (!vfd->vidioc_s_tuner)
|
| 1440 |
|
|
break;
|
| 1441 |
|
|
dbgarg (cmd, "index=%d, name=%s, type=%d, "
|
| 1442 |
|
|
"capability=%d, rangelow=%d, rangehigh=%d, "
|
| 1443 |
|
|
"signal=%d, afc=%d, rxsubchans=%d, "
|
| 1444 |
|
|
"audmode=%d\n",p->index, p->name, p->type,
|
| 1445 |
|
|
p->capability, p->rangelow,p->rangehigh,
|
| 1446 |
|
|
p->rxsubchans, p->audmode, p->signal,
|
| 1447 |
|
|
p->afc);
|
| 1448 |
|
|
ret=vfd->vidioc_s_tuner(file, fh, p);
|
| 1449 |
|
|
break;
|
| 1450 |
|
|
}
|
| 1451 |
|
|
case VIDIOC_G_FREQUENCY:
|
| 1452 |
|
|
{
|
| 1453 |
|
|
struct v4l2_frequency *p=arg;
|
| 1454 |
|
|
if (!vfd->vidioc_g_frequency)
|
| 1455 |
|
|
break;
|
| 1456 |
|
|
|
| 1457 |
|
|
memset(p,0,sizeof(*p));
|
| 1458 |
|
|
|
| 1459 |
|
|
ret=vfd->vidioc_g_frequency(file, fh, p);
|
| 1460 |
|
|
if (!ret)
|
| 1461 |
|
|
dbgarg (cmd, "tuner=%d, type=%d, frequency=%d\n",
|
| 1462 |
|
|
p->tuner,p->type,p->frequency);
|
| 1463 |
|
|
break;
|
| 1464 |
|
|
}
|
| 1465 |
|
|
case VIDIOC_S_FREQUENCY:
|
| 1466 |
|
|
{
|
| 1467 |
|
|
struct v4l2_frequency *p=arg;
|
| 1468 |
|
|
if (!vfd->vidioc_s_frequency)
|
| 1469 |
|
|
break;
|
| 1470 |
|
|
dbgarg (cmd, "tuner=%d, type=%d, frequency=%d\n",
|
| 1471 |
|
|
p->tuner,p->type,p->frequency);
|
| 1472 |
|
|
ret=vfd->vidioc_s_frequency(file, fh, p);
|
| 1473 |
|
|
break;
|
| 1474 |
|
|
}
|
| 1475 |
|
|
case VIDIOC_G_SLICED_VBI_CAP:
|
| 1476 |
|
|
{
|
| 1477 |
|
|
struct v4l2_sliced_vbi_cap *p=arg;
|
| 1478 |
|
|
if (!vfd->vidioc_g_sliced_vbi_cap)
|
| 1479 |
|
|
break;
|
| 1480 |
|
|
ret=vfd->vidioc_g_sliced_vbi_cap(file, fh, p);
|
| 1481 |
|
|
if (!ret)
|
| 1482 |
|
|
dbgarg (cmd, "service_set=%d\n", p->service_set);
|
| 1483 |
|
|
break;
|
| 1484 |
|
|
}
|
| 1485 |
|
|
case VIDIOC_LOG_STATUS:
|
| 1486 |
|
|
{
|
| 1487 |
|
|
if (!vfd->vidioc_log_status)
|
| 1488 |
|
|
break;
|
| 1489 |
|
|
ret=vfd->vidioc_log_status(file, fh);
|
| 1490 |
|
|
break;
|
| 1491 |
|
|
}
|
| 1492 |
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
| 1493 |
|
|
case VIDIOC_DBG_G_REGISTER:
|
| 1494 |
|
|
{
|
| 1495 |
|
|
struct v4l2_register *p=arg;
|
| 1496 |
|
|
if (!capable(CAP_SYS_ADMIN))
|
| 1497 |
|
|
ret=-EPERM;
|
| 1498 |
|
|
else if (vfd->vidioc_g_register)
|
| 1499 |
|
|
ret=vfd->vidioc_g_register(file, fh, p);
|
| 1500 |
|
|
break;
|
| 1501 |
|
|
}
|
| 1502 |
|
|
case VIDIOC_DBG_S_REGISTER:
|
| 1503 |
|
|
{
|
| 1504 |
|
|
struct v4l2_register *p=arg;
|
| 1505 |
|
|
if (!capable(CAP_SYS_ADMIN))
|
| 1506 |
|
|
ret=-EPERM;
|
| 1507 |
|
|
else if (vfd->vidioc_s_register)
|
| 1508 |
|
|
ret=vfd->vidioc_s_register(file, fh, p);
|
| 1509 |
|
|
break;
|
| 1510 |
|
|
}
|
| 1511 |
|
|
#endif
|
| 1512 |
|
|
case VIDIOC_G_CHIP_IDENT:
|
| 1513 |
|
|
{
|
| 1514 |
|
|
struct v4l2_chip_ident *p=arg;
|
| 1515 |
|
|
if (!vfd->vidioc_g_chip_ident)
|
| 1516 |
|
|
break;
|
| 1517 |
|
|
ret=vfd->vidioc_g_chip_ident(file, fh, p);
|
| 1518 |
|
|
if (!ret)
|
| 1519 |
|
|
dbgarg (cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision);
|
| 1520 |
|
|
break;
|
| 1521 |
|
|
}
|
| 1522 |
|
|
} /* switch */
|
| 1523 |
|
|
|
| 1524 |
|
|
if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) {
|
| 1525 |
|
|
if (ret<0) {
|
| 1526 |
|
|
printk ("%s: err:\n", vfd->name);
|
| 1527 |
|
|
v4l_print_ioctl(vfd->name, cmd);
|
| 1528 |
|
|
}
|
| 1529 |
|
|
}
|
| 1530 |
|
|
|
| 1531 |
|
|
return ret;
|
| 1532 |
|
|
}
|
| 1533 |
|
|
|
| 1534 |
|
|
int video_ioctl2 (struct inode *inode, struct file *file,
|
| 1535 |
|
|
unsigned int cmd, unsigned long arg)
|
| 1536 |
|
|
{
|
| 1537 |
|
|
char sbuf[128];
|
| 1538 |
|
|
void *mbuf = NULL;
|
| 1539 |
|
|
void *parg = NULL;
|
| 1540 |
|
|
int err = -EINVAL;
|
| 1541 |
|
|
int is_ext_ctrl;
|
| 1542 |
|
|
size_t ctrls_size = 0;
|
| 1543 |
|
|
void __user *user_ptr = NULL;
|
| 1544 |
|
|
|
| 1545 |
|
|
#ifdef __OLD_VIDIOC_
|
| 1546 |
|
|
cmd = video_fix_command(cmd);
|
| 1547 |
|
|
#endif
|
| 1548 |
|
|
is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS ||
|
| 1549 |
|
|
cmd == VIDIOC_TRY_EXT_CTRLS);
|
| 1550 |
|
|
|
| 1551 |
|
|
/* Copy arguments into temp kernel buffer */
|
| 1552 |
|
|
switch (_IOC_DIR(cmd)) {
|
| 1553 |
|
|
case _IOC_NONE:
|
| 1554 |
|
|
parg = NULL;
|
| 1555 |
|
|
break;
|
| 1556 |
|
|
case _IOC_READ:
|
| 1557 |
|
|
case _IOC_WRITE:
|
| 1558 |
|
|
case (_IOC_WRITE | _IOC_READ):
|
| 1559 |
|
|
if (_IOC_SIZE(cmd) <= sizeof(sbuf)) {
|
| 1560 |
|
|
parg = sbuf;
|
| 1561 |
|
|
} else {
|
| 1562 |
|
|
/* too big to allocate from stack */
|
| 1563 |
|
|
mbuf = kmalloc(_IOC_SIZE(cmd),GFP_KERNEL);
|
| 1564 |
|
|
if (NULL == mbuf)
|
| 1565 |
|
|
return -ENOMEM;
|
| 1566 |
|
|
parg = mbuf;
|
| 1567 |
|
|
}
|
| 1568 |
|
|
|
| 1569 |
|
|
err = -EFAULT;
|
| 1570 |
|
|
if (_IOC_DIR(cmd) & _IOC_WRITE)
|
| 1571 |
|
|
if (copy_from_user(parg, (void __user *)arg, _IOC_SIZE(cmd)))
|
| 1572 |
|
|
goto out;
|
| 1573 |
|
|
break;
|
| 1574 |
|
|
}
|
| 1575 |
|
|
|
| 1576 |
|
|
if (is_ext_ctrl) {
|
| 1577 |
|
|
struct v4l2_ext_controls *p = parg;
|
| 1578 |
|
|
|
| 1579 |
|
|
/* In case of an error, tell the caller that it wasn't
|
| 1580 |
|
|
a specific control that caused it. */
|
| 1581 |
|
|
p->error_idx = p->count;
|
| 1582 |
|
|
user_ptr = (void __user *)p->controls;
|
| 1583 |
|
|
if (p->count) {
|
| 1584 |
|
|
ctrls_size = sizeof(struct v4l2_ext_control) * p->count;
|
| 1585 |
|
|
/* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */
|
| 1586 |
|
|
mbuf = kmalloc(ctrls_size, GFP_KERNEL);
|
| 1587 |
|
|
err = -ENOMEM;
|
| 1588 |
|
|
if (NULL == mbuf)
|
| 1589 |
|
|
goto out_ext_ctrl;
|
| 1590 |
|
|
err = -EFAULT;
|
| 1591 |
|
|
if (copy_from_user(mbuf, user_ptr, ctrls_size))
|
| 1592 |
|
|
goto out_ext_ctrl;
|
| 1593 |
|
|
p->controls = mbuf;
|
| 1594 |
|
|
}
|
| 1595 |
|
|
}
|
| 1596 |
|
|
|
| 1597 |
|
|
/* Handles IOCTL */
|
| 1598 |
|
|
err = __video_do_ioctl(inode, file, cmd, parg);
|
| 1599 |
|
|
if (err == -ENOIOCTLCMD)
|
| 1600 |
|
|
err = -EINVAL;
|
| 1601 |
|
|
if (is_ext_ctrl) {
|
| 1602 |
|
|
struct v4l2_ext_controls *p = parg;
|
| 1603 |
|
|
|
| 1604 |
|
|
p->controls = (void *)user_ptr;
|
| 1605 |
|
|
if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size))
|
| 1606 |
|
|
err = -EFAULT;
|
| 1607 |
|
|
goto out_ext_ctrl;
|
| 1608 |
|
|
}
|
| 1609 |
|
|
if (err < 0)
|
| 1610 |
|
|
goto out;
|
| 1611 |
|
|
|
| 1612 |
|
|
out_ext_ctrl:
|
| 1613 |
|
|
/* Copy results into user buffer */
|
| 1614 |
|
|
switch (_IOC_DIR(cmd))
|
| 1615 |
|
|
{
|
| 1616 |
|
|
case _IOC_READ:
|
| 1617 |
|
|
case (_IOC_WRITE | _IOC_READ):
|
| 1618 |
|
|
if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd)))
|
| 1619 |
|
|
err = -EFAULT;
|
| 1620 |
|
|
break;
|
| 1621 |
|
|
}
|
| 1622 |
|
|
|
| 1623 |
|
|
out:
|
| 1624 |
|
|
kfree(mbuf);
|
| 1625 |
|
|
return err;
|
| 1626 |
|
|
}
|
| 1627 |
|
|
|
| 1628 |
|
|
|
| 1629 |
|
|
static const struct file_operations video_fops;
|
| 1630 |
|
|
|
| 1631 |
|
|
/**
|
| 1632 |
|
|
* video_register_device - register video4linux devices
|
| 1633 |
|
|
* @vfd: video device structure we want to register
|
| 1634 |
|
|
* @type: type of device to register
|
| 1635 |
|
|
* @nr: which device number (0 == /dev/video0, 1 == /dev/video1, ...
|
| 1636 |
|
|
* -1 == first free)
|
| 1637 |
|
|
*
|
| 1638 |
|
|
* The registration code assigns minor numbers based on the type
|
| 1639 |
|
|
* requested. -ENFILE is returned in all the device slots for this
|
| 1640 |
|
|
* category are full. If not then the minor field is set and the
|
| 1641 |
|
|
* driver initialize function is called (if non %NULL).
|
| 1642 |
|
|
*
|
| 1643 |
|
|
* Zero is returned on success.
|
| 1644 |
|
|
*
|
| 1645 |
|
|
* Valid types are
|
| 1646 |
|
|
*
|
| 1647 |
|
|
* %VFL_TYPE_GRABBER - A frame grabber
|
| 1648 |
|
|
*
|
| 1649 |
|
|
* %VFL_TYPE_VTX - A teletext device
|
| 1650 |
|
|
*
|
| 1651 |
|
|
* %VFL_TYPE_VBI - Vertical blank data (undecoded)
|
| 1652 |
|
|
*
|
| 1653 |
|
|
* %VFL_TYPE_RADIO - A radio card
|
| 1654 |
|
|
*/
|
| 1655 |
|
|
|
| 1656 |
|
|
int video_register_device(struct video_device *vfd, int type, int nr)
|
| 1657 |
|
|
{
|
| 1658 |
|
|
int i=0;
|
| 1659 |
|
|
int base;
|
| 1660 |
|
|
int end;
|
| 1661 |
|
|
int ret;
|
| 1662 |
|
|
char *name_base;
|
| 1663 |
|
|
|
| 1664 |
|
|
switch(type)
|
| 1665 |
|
|
{
|
| 1666 |
|
|
case VFL_TYPE_GRABBER:
|
| 1667 |
|
|
base=MINOR_VFL_TYPE_GRABBER_MIN;
|
| 1668 |
|
|
end=MINOR_VFL_TYPE_GRABBER_MAX+1;
|
| 1669 |
|
|
name_base = "video";
|
| 1670 |
|
|
break;
|
| 1671 |
|
|
case VFL_TYPE_VTX:
|
| 1672 |
|
|
base=MINOR_VFL_TYPE_VTX_MIN;
|
| 1673 |
|
|
end=MINOR_VFL_TYPE_VTX_MAX+1;
|
| 1674 |
|
|
name_base = "vtx";
|
| 1675 |
|
|
break;
|
| 1676 |
|
|
case VFL_TYPE_VBI:
|
| 1677 |
|
|
base=MINOR_VFL_TYPE_VBI_MIN;
|
| 1678 |
|
|
end=MINOR_VFL_TYPE_VBI_MAX+1;
|
| 1679 |
|
|
name_base = "vbi";
|
| 1680 |
|
|
break;
|
| 1681 |
|
|
case VFL_TYPE_RADIO:
|
| 1682 |
|
|
base=MINOR_VFL_TYPE_RADIO_MIN;
|
| 1683 |
|
|
end=MINOR_VFL_TYPE_RADIO_MAX+1;
|
| 1684 |
|
|
name_base = "radio";
|
| 1685 |
|
|
break;
|
| 1686 |
|
|
default:
|
| 1687 |
|
|
printk(KERN_ERR "%s called with unknown type: %d\n",
|
| 1688 |
|
|
__FUNCTION__, type);
|
| 1689 |
|
|
return -1;
|
| 1690 |
|
|
}
|
| 1691 |
|
|
|
| 1692 |
|
|
/* pick a minor number */
|
| 1693 |
|
|
mutex_lock(&videodev_lock);
|
| 1694 |
|
|
if (nr >= 0 && nr < end-base) {
|
| 1695 |
|
|
/* use the one the driver asked for */
|
| 1696 |
|
|
i = base+nr;
|
| 1697 |
|
|
if (NULL != video_device[i]) {
|
| 1698 |
|
|
mutex_unlock(&videodev_lock);
|
| 1699 |
|
|
return -ENFILE;
|
| 1700 |
|
|
}
|
| 1701 |
|
|
} else {
|
| 1702 |
|
|
/* use first free */
|
| 1703 |
|
|
for(i=base;i<end;i++)
|
| 1704 |
|
|
if (NULL == video_device[i])
|
| 1705 |
|
|
break;
|
| 1706 |
|
|
if (i == end) {
|
| 1707 |
|
|
mutex_unlock(&videodev_lock);
|
| 1708 |
|
|
return -ENFILE;
|
| 1709 |
|
|
}
|
| 1710 |
|
|
}
|
| 1711 |
|
|
video_device[i]=vfd;
|
| 1712 |
|
|
vfd->minor=i;
|
| 1713 |
|
|
mutex_unlock(&videodev_lock);
|
| 1714 |
|
|
mutex_init(&vfd->lock);
|
| 1715 |
|
|
|
| 1716 |
|
|
/* sysfs class */
|
| 1717 |
|
|
memset(&vfd->class_dev, 0x00, sizeof(vfd->class_dev));
|
| 1718 |
|
|
if (vfd->dev)
|
| 1719 |
|
|
vfd->class_dev.parent = vfd->dev;
|
| 1720 |
|
|
vfd->class_dev.class = &video_class;
|
| 1721 |
|
|
vfd->class_dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor);
|
| 1722 |
|
|
sprintf(vfd->class_dev.bus_id, "%s%d", name_base, i - base);
|
| 1723 |
|
|
ret = device_register(&vfd->class_dev);
|
| 1724 |
|
|
if (ret < 0) {
|
| 1725 |
|
|
printk(KERN_ERR "%s: device_register failed\n",
|
| 1726 |
|
|
__FUNCTION__);
|
| 1727 |
|
|
goto fail_minor;
|
| 1728 |
|
|
}
|
| 1729 |
|
|
|
| 1730 |
|
|
#if 1
|
| 1731 |
|
|
/* needed until all drivers are fixed */
|
| 1732 |
|
|
if (!vfd->release)
|
| 1733 |
|
|
printk(KERN_WARNING "videodev: \"%s\" has no release callback. "
|
| 1734 |
|
|
"Please fix your driver for proper sysfs support, see "
|
| 1735 |
|
|
"http://lwn.net/Articles/36850/\n", vfd->name);
|
| 1736 |
|
|
#endif
|
| 1737 |
|
|
return 0;
|
| 1738 |
|
|
|
| 1739 |
|
|
fail_minor:
|
| 1740 |
|
|
mutex_lock(&videodev_lock);
|
| 1741 |
|
|
video_device[vfd->minor] = NULL;
|
| 1742 |
|
|
vfd->minor = -1;
|
| 1743 |
|
|
mutex_unlock(&videodev_lock);
|
| 1744 |
|
|
return ret;
|
| 1745 |
|
|
}
|
| 1746 |
|
|
|
| 1747 |
|
|
/**
|
| 1748 |
|
|
* video_unregister_device - unregister a video4linux device
|
| 1749 |
|
|
* @vfd: the device to unregister
|
| 1750 |
|
|
*
|
| 1751 |
|
|
* This unregisters the passed device and deassigns the minor
|
| 1752 |
|
|
* number. Future open calls will be met with errors.
|
| 1753 |
|
|
*/
|
| 1754 |
|
|
|
| 1755 |
|
|
void video_unregister_device(struct video_device *vfd)
|
| 1756 |
|
|
{
|
| 1757 |
|
|
mutex_lock(&videodev_lock);
|
| 1758 |
|
|
if(video_device[vfd->minor]!=vfd)
|
| 1759 |
|
|
panic("videodev: bad unregister");
|
| 1760 |
|
|
|
| 1761 |
|
|
video_device[vfd->minor]=NULL;
|
| 1762 |
|
|
device_unregister(&vfd->class_dev);
|
| 1763 |
|
|
mutex_unlock(&videodev_lock);
|
| 1764 |
|
|
}
|
| 1765 |
|
|
|
| 1766 |
|
|
/*
|
| 1767 |
|
|
* Video fs operations
|
| 1768 |
|
|
*/
|
| 1769 |
|
|
static const struct file_operations video_fops=
|
| 1770 |
|
|
{
|
| 1771 |
|
|
.owner = THIS_MODULE,
|
| 1772 |
|
|
.llseek = no_llseek,
|
| 1773 |
|
|
.open = video_open,
|
| 1774 |
|
|
};
|
| 1775 |
|
|
|
| 1776 |
|
|
/*
|
| 1777 |
|
|
* Initialise video for linux
|
| 1778 |
|
|
*/
|
| 1779 |
|
|
|
| 1780 |
|
|
static int __init videodev_init(void)
|
| 1781 |
|
|
{
|
| 1782 |
|
|
int ret;
|
| 1783 |
|
|
|
| 1784 |
|
|
printk(KERN_INFO "Linux video capture interface: v2.00\n");
|
| 1785 |
|
|
if (register_chrdev(VIDEO_MAJOR, VIDEO_NAME, &video_fops)) {
|
| 1786 |
|
|
printk(KERN_WARNING "video_dev: unable to get major %d\n", VIDEO_MAJOR);
|
| 1787 |
|
|
return -EIO;
|
| 1788 |
|
|
}
|
| 1789 |
|
|
|
| 1790 |
|
|
ret = class_register(&video_class);
|
| 1791 |
|
|
if (ret < 0) {
|
| 1792 |
|
|
unregister_chrdev(VIDEO_MAJOR, VIDEO_NAME);
|
| 1793 |
|
|
printk(KERN_WARNING "video_dev: class_register failed\n");
|
| 1794 |
|
|
return -EIO;
|
| 1795 |
|
|
}
|
| 1796 |
|
|
|
| 1797 |
|
|
return 0;
|
| 1798 |
|
|
}
|
| 1799 |
|
|
|
| 1800 |
|
|
static void __exit videodev_exit(void)
|
| 1801 |
|
|
{
|
| 1802 |
|
|
class_unregister(&video_class);
|
| 1803 |
|
|
unregister_chrdev(VIDEO_MAJOR, VIDEO_NAME);
|
| 1804 |
|
|
}
|
| 1805 |
|
|
|
| 1806 |
|
|
module_init(videodev_init)
|
| 1807 |
|
|
module_exit(videodev_exit)
|
| 1808 |
|
|
|
| 1809 |
|
|
EXPORT_SYMBOL(video_register_device);
|
| 1810 |
|
|
EXPORT_SYMBOL(video_unregister_device);
|
| 1811 |
|
|
EXPORT_SYMBOL(video_devdata);
|
| 1812 |
|
|
EXPORT_SYMBOL(video_usercopy);
|
| 1813 |
|
|
EXPORT_SYMBOL(video_exclusive_open);
|
| 1814 |
|
|
EXPORT_SYMBOL(video_exclusive_release);
|
| 1815 |
|
|
EXPORT_SYMBOL(video_ioctl2);
|
| 1816 |
|
|
EXPORT_SYMBOL(video_device_alloc);
|
| 1817 |
|
|
EXPORT_SYMBOL(video_device_release);
|
| 1818 |
|
|
|
| 1819 |
|
|
MODULE_AUTHOR("Alan Cox, Mauro Carvalho Chehab <mchehab@infradead.org>");
|
| 1820 |
|
|
MODULE_DESCRIPTION("Device registrar for Video4Linux drivers v2");
|
| 1821 |
|
|
MODULE_LICENSE("GPL");
|
| 1822 |
|
|
|
| 1823 |
|
|
|
| 1824 |
|
|
/*
|
| 1825 |
|
|
* Local variables:
|
| 1826 |
|
|
* c-basic-offset: 8
|
| 1827 |
|
|
* End:
|
| 1828 |
|
|
*/
|
