/*
- * Video capture interface for Linux version 2
+ * Video capture interface for Linux
*
- * A generic video device interface for the LINUX operating system
- * using a set of device structures/vectors for low level operations.
+ * A generic video device interface for the LINUX operating system
+ * using a set of device structures/vectors for low level operations.
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
*
- * Authors: Alan Cox, <alan@redhat.com> (version 1)
- * Mauro Carvalho Chehab <mchehab@infradead.org> (version 2)
+ * Author: Alan Cox, <alan@redhat.com>
*
* Fixes: 20000516 Claudio Matsuoka <claudio@conectiva.com>
* - Added procfs support
*/
-#define dbgarg(cmd, fmt, arg...) \
- if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \
- printk (KERN_DEBUG "%s: ", vfd->name); \
- v4l_printk_ioctl(cmd); \
- printk (KERN_DEBUG "%s: " fmt, vfd->name, ## arg);
-
-#define dbgarg2(fmt, arg...) \
- if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \
- printk (KERN_DEBUG "%s: " fmt, vfd->name, ## arg);
-
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/kmod.h>
#include <linux/slab.h>
+#include <linux/devfs_fs_kernel.h>
#include <asm/uaccess.h>
#include <asm/system.h>
-#define __OLD_VIDIOC_ /* To allow fixing old calls*/
-#include <linux/videodev2.h>
-
-#ifdef CONFIG_VIDEO_V4L1
#include <linux/videodev.h>
-#endif
-#include <media/v4l2-common.h>
#define VIDEO_NUM_DEVICES 256
#define VIDEO_NAME "video4linux"
static ssize_t show_name(struct class_device *cd, char *buf)
{
- struct video_device *vfd = container_of(cd, struct video_device,
- class_dev);
+ struct video_device *vfd = container_of(cd, struct video_device, class_dev);
return sprintf(buf,"%.*s\n",(int)sizeof(vfd->name),vfd->name);
}
static void video_release(struct class_device *cd)
{
- struct video_device *vfd = container_of(cd, struct video_device,
- class_dev);
+ struct video_device *vfd = container_of(cd, struct video_device, class_dev);
#if 1
/* needed until all drivers are fixed */
}
/*
- * Open a video device - FIXME: Obsoleted
+ * Open a video device.
*/
static int video_open(struct inode *inode, struct file *file)
{
unsigned int minor = iminor(inode);
int err = 0;
struct video_device *vfl;
- const struct file_operations *old_fops;
+ struct file_operations *old_fops;
if(minor>=VIDEO_NUM_DEVICES)
return -ENODEV;
* helper function -- handles userspace copying for ioctl arguments
*/
-#ifdef __OLD_VIDIOC_
static unsigned int
video_fix_command(unsigned int cmd)
{
}
return cmd;
}
-#endif
-/*
- * Obsolete usercopy function - Should be removed soon
- */
int
video_usercopy(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg,
void *mbuf = NULL;
void *parg = NULL;
int err = -EINVAL;
- int is_ext_ctrl;
- size_t ctrls_size = 0;
- void __user *user_ptr = NULL;
-#ifdef __OLD_VIDIOC_
cmd = video_fix_command(cmd);
-#endif
- is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS ||
- cmd == VIDIOC_TRY_EXT_CTRLS);
/* Copy arguments into temp kernel buffer */
switch (_IOC_DIR(cmd)) {
goto out;
break;
}
- if (is_ext_ctrl) {
- struct v4l2_ext_controls *p = parg;
-
- /* In case of an error, tell the caller that it wasn't
- a specific control that caused it. */
- p->error_idx = p->count;
- user_ptr = (void __user *)p->controls;
- if (p->count) {
- ctrls_size = sizeof(struct v4l2_ext_control) * p->count;
- /* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */
- mbuf = kmalloc(ctrls_size, GFP_KERNEL);
- err = -ENOMEM;
- if (NULL == mbuf)
- goto out_ext_ctrl;
- err = -EFAULT;
- if (copy_from_user(mbuf, user_ptr, ctrls_size))
- goto out_ext_ctrl;
- p->controls = mbuf;
- }
- }
/* call driver */
err = func(inode, file, cmd, parg);
if (err == -ENOIOCTLCMD)
err = -EINVAL;
- if (is_ext_ctrl) {
- struct v4l2_ext_controls *p = parg;
-
- p->controls = (void *)user_ptr;
- if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size))
- err = -EFAULT;
- goto out_ext_ctrl;
- }
if (err < 0)
goto out;
-out_ext_ctrl:
/* Copy results into user buffer */
switch (_IOC_DIR(cmd))
{
/*
* open/release helper functions -- handle exclusive opens
- * Should be removed soon
*/
int video_exclusive_open(struct inode *inode, struct file *file)
{
struct video_device *vfl = video_devdata(file);
int retval = 0;
- mutex_lock(&vfl->lock);
+ down(&vfl->lock);
if (vfl->users) {
retval = -EBUSY;
} else {
vfl->users++;
}
- mutex_unlock(&vfl->lock);
+ up(&vfl->lock);
return retval;
}
return 0;
}
-static char *v4l2_memory_names[] = {
- [V4L2_MEMORY_MMAP] = "mmap",
- [V4L2_MEMORY_USERPTR] = "userptr",
- [V4L2_MEMORY_OVERLAY] = "overlay",
-};
-
-
-/* FIXME: Those stuff are replicated also on v4l2-common.c */
-static char *v4l2_type_names_FIXME[] = {
- [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "video-cap",
- [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "video-over",
- [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "video-out",
- [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap",
- [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out",
- [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out",
- [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-capture",
- [V4L2_BUF_TYPE_PRIVATE] = "private",
-};
-
-static char *v4l2_field_names_FIXME[] = {
- [V4L2_FIELD_ANY] = "any",
- [V4L2_FIELD_NONE] = "none",
- [V4L2_FIELD_TOP] = "top",
- [V4L2_FIELD_BOTTOM] = "bottom",
- [V4L2_FIELD_INTERLACED] = "interlaced",
- [V4L2_FIELD_SEQ_TB] = "seq-tb",
- [V4L2_FIELD_SEQ_BT] = "seq-bt",
- [V4L2_FIELD_ALTERNATE] = "alternate",
-};
-
-#define prt_names(a,arr) (((a)>=0)&&((a)<ARRAY_SIZE(arr)))?arr[a]:"unknown"
-
-static void dbgbuf(unsigned int cmd, struct video_device *vfd,
- struct v4l2_buffer *p)
-{
- struct v4l2_timecode *tc=&p->timecode;
-
- dbgarg (cmd, "%02ld:%02d:%02d.%08ld index=%d, type=%s, "
- "bytesused=%d, flags=0x%08d, "
- "field=%0d, sequence=%d, memory=%s, offset/userptr=0x%08lx\n",
- (p->timestamp.tv_sec/3600),
- (int)(p->timestamp.tv_sec/60)%60,
- (int)(p->timestamp.tv_sec%60),
- p->timestamp.tv_usec,
- p->index,
- prt_names(p->type,v4l2_type_names_FIXME),
- p->bytesused,p->flags,
- p->field,p->sequence,
- prt_names(p->memory,v4l2_memory_names),
- p->m.userptr);
- dbgarg2 ("timecode= %02d:%02d:%02d type=%d, "
- "flags=0x%08d, frames=%d, userbits=0x%08x\n",
- tc->hours,tc->minutes,tc->seconds,
- tc->type, tc->flags, tc->frames, *(__u32 *) tc->userbits);
-}
-
-static inline void dbgrect(struct video_device *vfd, char *s,
- struct v4l2_rect *r)
-{
- dbgarg2 ("%sRect start at %dx%d, size= %dx%d\n", s, r->left, r->top,
- r->width, r->height);
-};
-
-static inline void v4l_print_pix_fmt (struct video_device *vfd,
- struct v4l2_pix_format *fmt)
-{
- dbgarg2 ("width=%d, height=%d, format=0x%08x, field=%s, "
- "bytesperline=%d sizeimage=%d, colorspace=%d\n",
- fmt->width,fmt->height,fmt->pixelformat,
- prt_names(fmt->field,v4l2_field_names_FIXME),
- fmt->bytesperline,fmt->sizeimage,fmt->colorspace);
-};
-
-
-static int check_fmt (struct video_device *vfd, enum v4l2_buf_type type)
-{
- switch (type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- if (vfd->vidioc_try_fmt_cap)
- return (0);
- break;
- case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- if (vfd->vidioc_try_fmt_overlay)
- return (0);
- break;
- case V4L2_BUF_TYPE_VBI_CAPTURE:
- if (vfd->vidioc_try_fmt_vbi)
- return (0);
- break;
- case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
- if (vfd->vidioc_try_fmt_vbi_output)
- return (0);
- break;
- case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
- if (vfd->vidioc_try_fmt_vbi_capture)
- return (0);
- break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- if (vfd->vidioc_try_fmt_video_output)
- return (0);
- break;
- case V4L2_BUF_TYPE_VBI_OUTPUT:
- if (vfd->vidioc_try_fmt_vbi_output)
- return (0);
- break;
- case V4L2_BUF_TYPE_PRIVATE:
- if (vfd->vidioc_try_fmt_type_private)
- return (0);
- break;
- }
- return (-EINVAL);
-}
-
-static int __video_do_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, void *arg)
-{
- struct video_device *vfd = video_devdata(file);
- void *fh = file->private_data;
- int ret = -EINVAL;
-
- if ( (vfd->debug & V4L2_DEBUG_IOCTL) &&
- !(vfd->debug | V4L2_DEBUG_IOCTL_ARG)) {
- v4l_print_ioctl(vfd->name, cmd);
- }
-
- switch(cmd) {
- /* --- capabilities ------------------------------------------ */
- case VIDIOC_QUERYCAP:
- {
- struct v4l2_capability *cap = (struct v4l2_capability*)arg;
- memset(cap, 0, sizeof(*cap));
-
- if (!vfd->vidioc_querycap)
- break;
-
- ret=vfd->vidioc_querycap(file, fh, cap);
- if (!ret)
- dbgarg (cmd, "driver=%s, card=%s, bus=%s, "
- "version=0x%08x, "
- "capabilities=0x%08x\n",
- cap->driver,cap->card,cap->bus_info,
- cap->version,
- cap->capabilities);
- break;
- }
-
- /* --- priority ------------------------------------------ */
- case VIDIOC_G_PRIORITY:
- {
- enum v4l2_priority *p=arg;
-
- if (!vfd->vidioc_g_priority)
- break;
- ret=vfd->vidioc_g_priority(file, fh, p);
- if (!ret)
- dbgarg(cmd, "priority is %d\n", *p);
- break;
- }
- case VIDIOC_S_PRIORITY:
- {
- enum v4l2_priority *p=arg;
-
- if (!vfd->vidioc_s_priority)
- break;
- dbgarg(cmd, "setting priority to %d\n", *p);
- ret=vfd->vidioc_s_priority(file, fh, *p);
- break;
- }
-
- /* --- capture ioctls ---------------------------------------- */
- case VIDIOC_ENUM_FMT:
- {
- struct v4l2_fmtdesc *f = arg;
- enum v4l2_buf_type type;
- unsigned int index;
-
- index = f->index;
- type = f->type;
- memset(f,0,sizeof(*f));
- f->index = index;
- f->type = type;
-
- switch (type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- if (vfd->vidioc_enum_fmt_cap)
- ret=vfd->vidioc_enum_fmt_cap(file, fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- if (vfd->vidioc_enum_fmt_overlay)
- ret=vfd->vidioc_enum_fmt_overlay(file, fh, f);
- break;
- case V4L2_BUF_TYPE_VBI_CAPTURE:
- if (vfd->vidioc_enum_fmt_vbi)
- ret=vfd->vidioc_enum_fmt_vbi(file, fh, f);
- break;
- case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
- if (vfd->vidioc_enum_fmt_vbi_output)
- ret=vfd->vidioc_enum_fmt_vbi_output(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
- if (vfd->vidioc_enum_fmt_vbi_capture)
- ret=vfd->vidioc_enum_fmt_vbi_capture(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- if (vfd->vidioc_enum_fmt_video_output)
- ret=vfd->vidioc_enum_fmt_video_output(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_VBI_OUTPUT:
- if (vfd->vidioc_enum_fmt_vbi_output)
- ret=vfd->vidioc_enum_fmt_vbi_output(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_PRIVATE:
- if (vfd->vidioc_enum_fmt_type_private)
- ret=vfd->vidioc_enum_fmt_type_private(file,
- fh, f);
- break;
- }
- if (!ret)
- dbgarg (cmd, "index=%d, type=%d, flags=%d, "
- "description=%s,"
- " pixelformat=0x%8x\n",
- f->index, f->type, f->flags,
- f->description,
- f->pixelformat);
-
- break;
- }
- case VIDIOC_G_FMT:
- {
- struct v4l2_format *f = (struct v4l2_format *)arg;
- enum v4l2_buf_type type=f->type;
-
- memset(&f->fmt.pix,0,sizeof(f->fmt.pix));
- f->type=type;
-
- /* FIXME: Should be one dump per type */
- dbgarg (cmd, "type=%s\n", prt_names(type,
- v4l2_type_names_FIXME));
-
- switch (type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- if (vfd->vidioc_g_fmt_cap)
- ret=vfd->vidioc_g_fmt_cap(file, fh, f);
- if (!ret)
- v4l_print_pix_fmt(vfd,&f->fmt.pix);
- break;
- case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- if (vfd->vidioc_g_fmt_overlay)
- ret=vfd->vidioc_g_fmt_overlay(file, fh, f);
- break;
- case V4L2_BUF_TYPE_VBI_CAPTURE:
- if (vfd->vidioc_g_fmt_vbi)
- ret=vfd->vidioc_g_fmt_vbi(file, fh, f);
- break;
- case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
- if (vfd->vidioc_g_fmt_vbi_output)
- ret=vfd->vidioc_g_fmt_vbi_output(file, fh, f);
- break;
- case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
- if (vfd->vidioc_g_fmt_vbi_capture)
- ret=vfd->vidioc_g_fmt_vbi_capture(file, fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- if (vfd->vidioc_g_fmt_video_output)
- ret=vfd->vidioc_g_fmt_video_output(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_VBI_OUTPUT:
- if (vfd->vidioc_g_fmt_vbi_output)
- ret=vfd->vidioc_g_fmt_vbi_output(file, fh, f);
- break;
- case V4L2_BUF_TYPE_PRIVATE:
- if (vfd->vidioc_g_fmt_type_private)
- ret=vfd->vidioc_g_fmt_type_private(file,
- fh, f);
- break;
- }
-
- break;
- }
- case VIDIOC_S_FMT:
- {
- struct v4l2_format *f = (struct v4l2_format *)arg;
-
- /* FIXME: Should be one dump per type */
- dbgarg (cmd, "type=%s\n", prt_names(f->type,
- v4l2_type_names_FIXME));
-
- switch (f->type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- v4l_print_pix_fmt(vfd,&f->fmt.pix);
- if (vfd->vidioc_s_fmt_cap)
- ret=vfd->vidioc_s_fmt_cap(file, fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- if (vfd->vidioc_s_fmt_overlay)
- ret=vfd->vidioc_s_fmt_overlay(file, fh, f);
- break;
- case V4L2_BUF_TYPE_VBI_CAPTURE:
- if (vfd->vidioc_s_fmt_vbi)
- ret=vfd->vidioc_s_fmt_vbi(file, fh, f);
- break;
- case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
- if (vfd->vidioc_s_fmt_vbi_output)
- ret=vfd->vidioc_s_fmt_vbi_output(file, fh, f);
- break;
- case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
- if (vfd->vidioc_s_fmt_vbi_capture)
- ret=vfd->vidioc_s_fmt_vbi_capture(file, fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- if (vfd->vidioc_s_fmt_video_output)
- ret=vfd->vidioc_s_fmt_video_output(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_VBI_OUTPUT:
- if (vfd->vidioc_s_fmt_vbi_output)
- ret=vfd->vidioc_s_fmt_vbi_output(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_PRIVATE:
- if (vfd->vidioc_s_fmt_type_private)
- ret=vfd->vidioc_s_fmt_type_private(file,
- fh, f);
- break;
- }
- break;
- }
- case VIDIOC_TRY_FMT:
- {
- struct v4l2_format *f = (struct v4l2_format *)arg;
-
- /* FIXME: Should be one dump per type */
- dbgarg (cmd, "type=%s\n", prt_names(f->type,
- v4l2_type_names_FIXME));
- switch (f->type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- if (vfd->vidioc_try_fmt_cap)
- ret=vfd->vidioc_try_fmt_cap(file, fh, f);
- if (!ret)
- v4l_print_pix_fmt(vfd,&f->fmt.pix);
- break;
- case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- if (vfd->vidioc_try_fmt_overlay)
- ret=vfd->vidioc_try_fmt_overlay(file, fh, f);
- break;
- case V4L2_BUF_TYPE_VBI_CAPTURE:
- if (vfd->vidioc_try_fmt_vbi)
- ret=vfd->vidioc_try_fmt_vbi(file, fh, f);
- break;
- case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
- if (vfd->vidioc_try_fmt_vbi_output)
- ret=vfd->vidioc_try_fmt_vbi_output(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
- if (vfd->vidioc_try_fmt_vbi_capture)
- ret=vfd->vidioc_try_fmt_vbi_capture(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- if (vfd->vidioc_try_fmt_video_output)
- ret=vfd->vidioc_try_fmt_video_output(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_VBI_OUTPUT:
- if (vfd->vidioc_try_fmt_vbi_output)
- ret=vfd->vidioc_try_fmt_vbi_output(file,
- fh, f);
- break;
- case V4L2_BUF_TYPE_PRIVATE:
- if (vfd->vidioc_try_fmt_type_private)
- ret=vfd->vidioc_try_fmt_type_private(file,
- fh, f);
- break;
- }
-
- break;
- }
- /* FIXME: Those buf reqs could be handled here,
- with some changes on videobuf to allow its header to be included at
- videodev2.h or being merged at videodev2.
- */
- case VIDIOC_REQBUFS:
- {
- struct v4l2_requestbuffers *p=arg;
-
- if (!vfd->vidioc_reqbufs)
- break;
- ret = check_fmt (vfd, p->type);
- if (ret)
- break;
-
- ret=vfd->vidioc_reqbufs(file, fh, p);
- dbgarg (cmd, "count=%d, type=%s, memory=%s\n",
- p->count,
- prt_names(p->type,v4l2_type_names_FIXME),
- prt_names(p->memory,v4l2_memory_names));
- break;
- }
- case VIDIOC_QUERYBUF:
- {
- struct v4l2_buffer *p=arg;
-
- if (!vfd->vidioc_querybuf)
- break;
- ret = check_fmt (vfd, p->type);
- if (ret)
- break;
-
- ret=vfd->vidioc_querybuf(file, fh, p);
- if (!ret)
- dbgbuf(cmd,vfd,p);
- break;
- }
- case VIDIOC_QBUF:
- {
- struct v4l2_buffer *p=arg;
-
- if (!vfd->vidioc_qbuf)
- break;
- ret = check_fmt (vfd, p->type);
- if (ret)
- break;
-
- ret=vfd->vidioc_qbuf(file, fh, p);
- if (!ret)
- dbgbuf(cmd,vfd,p);
- break;
- }
- case VIDIOC_DQBUF:
- {
- struct v4l2_buffer *p=arg;
- if (!vfd->vidioc_dqbuf)
- break;
- ret = check_fmt (vfd, p->type);
- if (ret)
- break;
-
- ret=vfd->vidioc_dqbuf(file, fh, p);
- if (!ret)
- dbgbuf(cmd,vfd,p);
- break;
- }
- case VIDIOC_OVERLAY:
- {
- int *i = arg;
-
- if (!vfd->vidioc_overlay)
- break;
- dbgarg (cmd, "value=%d\n",*i);
- ret=vfd->vidioc_overlay(file, fh, *i);
- break;
- }
-#ifdef CONFIG_VIDEO_V4L1_COMPAT
- /* --- streaming capture ------------------------------------- */
- case VIDIOCGMBUF:
- {
- struct video_mbuf *p=arg;
-
- memset(p,0,sizeof(p));
-
- if (!vfd->vidiocgmbuf)
- break;
- ret=vfd->vidiocgmbuf(file, fh, p);
- if (!ret)
- dbgarg (cmd, "size=%d, frames=%d, offsets=0x%08lx\n",
- p->size, p->frames,
- (unsigned long)p->offsets);
- break;
- }
-#endif
- case VIDIOC_G_FBUF:
- {
- struct v4l2_framebuffer *p=arg;
- if (!vfd->vidioc_g_fbuf)
- break;
- ret=vfd->vidioc_g_fbuf(file, fh, arg);
- if (!ret) {
- dbgarg (cmd, "capability=%d, flags=%d, base=0x%08lx\n",
- p->capability,p->flags,
- (unsigned long)p->base);
- v4l_print_pix_fmt (vfd, &p->fmt);
- }
- break;
- }
- case VIDIOC_S_FBUF:
- {
- struct v4l2_framebuffer *p=arg;
- if (!vfd->vidioc_s_fbuf)
- break;
-
- dbgarg (cmd, "capability=%d, flags=%d, base=0x%08lx\n",
- p->capability,p->flags,(unsigned long)p->base);
- v4l_print_pix_fmt (vfd, &p->fmt);
- ret=vfd->vidioc_s_fbuf(file, fh, arg);
-
- break;
- }
- case VIDIOC_STREAMON:
- {
- enum v4l2_buf_type i = *(int *)arg;
- if (!vfd->vidioc_streamon)
- break;
- dbgarg (cmd, "type=%s\n", prt_names(i,v4l2_type_names_FIXME));
- ret=vfd->vidioc_streamon(file, fh,i);
- break;
- }
- case VIDIOC_STREAMOFF:
- {
- enum v4l2_buf_type i = *(int *)arg;
-
- if (!vfd->vidioc_streamoff)
- break;
- dbgarg (cmd, "type=%s\n", prt_names(i,v4l2_type_names_FIXME));
- ret=vfd->vidioc_streamoff(file, fh, i);
- break;
- }
- /* ---------- tv norms ---------- */
- case VIDIOC_ENUMSTD:
- {
- struct v4l2_standard *p = arg;
- unsigned int index = p->index;
-
- if (!vfd->tvnormsize) {
- printk (KERN_WARNING "%s: no TV norms defined!\n",
- vfd->name);
- break;
- }
-
- if (index < 0 || index >= vfd->tvnormsize) {
- ret=-EINVAL;
- break;
- }
- v4l2_video_std_construct(p, vfd->tvnorms[p->index].id,
- vfd->tvnorms[p->index].name);
- p->index = index;
-
- dbgarg (cmd, "index=%d, id=%Ld, name=%s, fps=%d/%d, "
- "framelines=%d\n", p->index,
- (unsigned long long)p->id, p->name,
- p->frameperiod.numerator,
- p->frameperiod.denominator,
- p->framelines);
-
- ret=0;
- break;
- }
- case VIDIOC_G_STD:
- {
- v4l2_std_id *id = arg;
-
- *id = vfd->current_norm;
-
- dbgarg (cmd, "value=%Lu\n", (long long unsigned) *id);
-
- ret=0;
- break;
- }
- case VIDIOC_S_STD:
- {
- v4l2_std_id *id = arg;
- unsigned int i;
-
- if (!vfd->tvnormsize) {
- printk (KERN_WARNING "%s: no TV norms defined!\n",
- vfd->name);
- break;
- }
-
- dbgarg (cmd, "value=%Lu\n", (long long unsigned) *id);
-
- /* First search for exact match */
- for (i = 0; i < vfd->tvnormsize; i++)
- if (*id == vfd->tvnorms[i].id)
- break;
- /* Then for a generic video std that contains desired std */
- if (i == vfd->tvnormsize)
- for (i = 0; i < vfd->tvnormsize; i++)
- if (*id & vfd->tvnorms[i].id)
- break;
- if (i == vfd->tvnormsize) {
- break;
- }
-
- /* Calls the specific handler */
- if (vfd->vidioc_s_std)
- ret=vfd->vidioc_s_std(file, fh, i);
- else
- ret=-EINVAL;
-
- /* Updates standard information */
- if (!ret)
- vfd->current_norm=*id;
-
- break;
- }
- case VIDIOC_QUERYSTD:
- {
- v4l2_std_id *p=arg;
-
- if (!vfd->vidioc_querystd)
- break;
- ret=vfd->vidioc_querystd(file, fh, arg);
- if (!ret)
- dbgarg (cmd, "detected std=%Lu\n",
- (unsigned long long)*p);
- break;
- }
- /* ------ input switching ---------- */
- /* FIXME: Inputs can be handled inside videodev2 */
- case VIDIOC_ENUMINPUT:
- {
- struct v4l2_input *p=arg;
- int i=p->index;
-
- if (!vfd->vidioc_enum_input)
- break;
- memset(p, 0, sizeof(*p));
- p->index=i;
-
- ret=vfd->vidioc_enum_input(file, fh, p);
- if (!ret)
- dbgarg (cmd, "index=%d, name=%s, type=%d, "
- "audioset=%d, "
- "tuner=%d, std=%Ld, status=%d\n",
- p->index,p->name,p->type,p->audioset,
- p->tuner,
- (unsigned long long)p->std,
- p->status);
- break;
- }
- case VIDIOC_G_INPUT:
- {
- unsigned int *i = arg;
-
- if (!vfd->vidioc_g_input)
- break;
- ret=vfd->vidioc_g_input(file, fh, i);
- if (!ret)
- dbgarg (cmd, "value=%d\n",*i);
- break;
- }
- case VIDIOC_S_INPUT:
- {
- unsigned int *i = arg;
-
- if (!vfd->vidioc_s_input)
- break;
- dbgarg (cmd, "value=%d\n",*i);
- ret=vfd->vidioc_s_input(file, fh, *i);
- break;
- }
-
- /* ------ output switching ---------- */
- case VIDIOC_G_OUTPUT:
- {
- unsigned int *i = arg;
-
- if (!vfd->vidioc_g_output)
- break;
- ret=vfd->vidioc_g_output(file, fh, i);
- if (!ret)
- dbgarg (cmd, "value=%d\n",*i);
- break;
- }
- case VIDIOC_S_OUTPUT:
- {
- unsigned int *i = arg;
-
- if (!vfd->vidioc_s_output)
- break;
- dbgarg (cmd, "value=%d\n",*i);
- ret=vfd->vidioc_s_output(file, fh, *i);
- break;
- }
-
- /* --- controls ---------------------------------------------- */
- case VIDIOC_QUERYCTRL:
- {
- struct v4l2_queryctrl *p=arg;
-
- if (!vfd->vidioc_queryctrl)
- break;
- ret=vfd->vidioc_queryctrl(file, fh, p);
-
- if (!ret)
- dbgarg (cmd, "id=%d, type=%d, name=%s, "
- "min/max=%d/%d,"
- " step=%d, default=%d, flags=0x%08x\n",
- p->id,p->type,p->name,p->minimum,
- p->maximum,p->step,p->default_value,
- p->flags);
- break;
- }
- case VIDIOC_G_CTRL:
- {
- struct v4l2_control *p = arg;
-
- if (!vfd->vidioc_g_ctrl)
- break;
- dbgarg(cmd, "Enum for index=%d\n", p->id);
-
- ret=vfd->vidioc_g_ctrl(file, fh, p);
- if (!ret)
- dbgarg2 ( "id=%d, value=%d\n", p->id, p->value);
- break;
- }
- case VIDIOC_S_CTRL:
- {
- struct v4l2_control *p = arg;
-
- if (!vfd->vidioc_s_ctrl)
- break;
- dbgarg (cmd, "id=%d, value=%d\n", p->id, p->value);
-
- ret=vfd->vidioc_s_ctrl(file, fh, p);
- break;
- }
- case VIDIOC_G_EXT_CTRLS:
- {
- struct v4l2_ext_controls *p = arg;
-
- if (vfd->vidioc_g_ext_ctrls) {
- dbgarg(cmd, "count=%d\n", p->count);
-
- ret=vfd->vidioc_g_ext_ctrls(file, fh, p);
- }
- break;
- }
- case VIDIOC_S_EXT_CTRLS:
- {
- struct v4l2_ext_controls *p = arg;
-
- if (vfd->vidioc_s_ext_ctrls) {
- dbgarg(cmd, "count=%d\n", p->count);
-
- ret=vfd->vidioc_s_ext_ctrls(file, fh, p);
- }
- break;
- }
- case VIDIOC_TRY_EXT_CTRLS:
- {
- struct v4l2_ext_controls *p = arg;
-
- if (vfd->vidioc_try_ext_ctrls) {
- dbgarg(cmd, "count=%d\n", p->count);
-
- ret=vfd->vidioc_try_ext_ctrls(file, fh, p);
- }
- break;
- }
- case VIDIOC_QUERYMENU:
- {
- struct v4l2_querymenu *p=arg;
- if (!vfd->vidioc_querymenu)
- break;
- ret=vfd->vidioc_querymenu(file, fh, p);
- if (!ret)
- dbgarg (cmd, "id=%d, index=%d, name=%s\n",
- p->id,p->index,p->name);
- break;
- }
- /* --- audio ---------------------------------------------- */
- case VIDIOC_ENUMAUDIO:
- {
- struct v4l2_audio *p=arg;
-
- if (!vfd->vidioc_enumaudio)
- break;
- dbgarg(cmd, "Enum for index=%d\n", p->index);
- ret=vfd->vidioc_enumaudio(file, fh, p);
- if (!ret)
- dbgarg2("index=%d, name=%s, capability=%d, "
- "mode=%d\n",p->index,p->name,
- p->capability, p->mode);
- break;
- }
- case VIDIOC_G_AUDIO:
- {
- struct v4l2_audio *p=arg;
-
- if (!vfd->vidioc_g_audio)
- break;
- dbgarg(cmd, "Get for index=%d\n", p->index);
- ret=vfd->vidioc_g_audio(file, fh, p);
- if (!ret)
- dbgarg2("index=%d, name=%s, capability=%d, "
- "mode=%d\n",p->index,
- p->name,p->capability, p->mode);
- break;
- }
- case VIDIOC_S_AUDIO:
- {
- struct v4l2_audio *p=arg;
-
- if (!vfd->vidioc_s_audio)
- break;
- dbgarg(cmd, "index=%d, name=%s, capability=%d, "
- "mode=%d\n", p->index, p->name,
- p->capability, p->mode);
- ret=vfd->vidioc_s_audio(file, fh, p);
- break;
- }
- case VIDIOC_ENUMAUDOUT:
- {
- struct v4l2_audioout *p=arg;
-
- if (!vfd->vidioc_enumaudout)
- break;
- dbgarg(cmd, "Enum for index=%d\n", p->index);
- ret=vfd->vidioc_enumaudout(file, fh, p);
- if (!ret)
- dbgarg2("index=%d, name=%s, capability=%d, "
- "mode=%d\n", p->index, p->name,
- p->capability,p->mode);
- break;
- }
- case VIDIOC_G_AUDOUT:
- {
- struct v4l2_audioout *p=arg;
-
- if (!vfd->vidioc_g_audout)
- break;
- dbgarg(cmd, "Enum for index=%d\n", p->index);
- ret=vfd->vidioc_g_audout(file, fh, p);
- if (!ret)
- dbgarg2("index=%d, name=%s, capability=%d, "
- "mode=%d\n", p->index, p->name,
- p->capability,p->mode);
- break;
- }
- case VIDIOC_S_AUDOUT:
- {
- struct v4l2_audioout *p=arg;
-
- if (!vfd->vidioc_s_audout)
- break;
- dbgarg(cmd, "index=%d, name=%s, capability=%d, "
- "mode=%d\n", p->index, p->name,
- p->capability,p->mode);
-
- ret=vfd->vidioc_s_audout(file, fh, p);
- break;
- }
- case VIDIOC_G_MODULATOR:
- {
- struct v4l2_modulator *p=arg;
- if (!vfd->vidioc_g_modulator)
- break;
- ret=vfd->vidioc_g_modulator(file, fh, p);
- if (!ret)
- dbgarg(cmd, "index=%d, name=%s, "
- "capability=%d, rangelow=%d,"
- " rangehigh=%d, txsubchans=%d\n",
- p->index, p->name,p->capability,
- p->rangelow, p->rangehigh,
- p->txsubchans);
- break;
- }
- case VIDIOC_S_MODULATOR:
- {
- struct v4l2_modulator *p=arg;
- if (!vfd->vidioc_s_modulator)
- break;
- dbgarg(cmd, "index=%d, name=%s, capability=%d, "
- "rangelow=%d, rangehigh=%d, txsubchans=%d\n",
- p->index, p->name,p->capability,p->rangelow,
- p->rangehigh,p->txsubchans);
- ret=vfd->vidioc_s_modulator(file, fh, p);
- break;
- }
- case VIDIOC_G_CROP:
- {
- struct v4l2_crop *p=arg;
- if (!vfd->vidioc_g_crop)
- break;
- ret=vfd->vidioc_g_crop(file, fh, p);
- if (!ret) {
- dbgarg(cmd, "type=%d\n", p->type);
- dbgrect(vfd, "", &p->c);
- }
- break;
- }
- case VIDIOC_S_CROP:
- {
- struct v4l2_crop *p=arg;
- if (!vfd->vidioc_s_crop)
- break;
- dbgarg(cmd, "type=%d\n", p->type);
- dbgrect(vfd, "", &p->c);
- ret=vfd->vidioc_s_crop(file, fh, p);
- break;
- }
- case VIDIOC_CROPCAP:
- {
- struct v4l2_cropcap *p=arg;
- /*FIXME: Should also show v4l2_fract pixelaspect */
- if (!vfd->vidioc_cropcap)
- break;
- dbgarg(cmd, "type=%d\n", p->type);
- dbgrect(vfd, "bounds ", &p->bounds);
- dbgrect(vfd, "defrect ", &p->defrect);
- ret=vfd->vidioc_cropcap(file, fh, p);
- break;
- }
- case VIDIOC_G_MPEGCOMP:
- {
- struct v4l2_mpeg_compression *p=arg;
-
- /*FIXME: Several fields not shown */
- if (!vfd->vidioc_g_mpegcomp)
- break;
- ret=vfd->vidioc_g_mpegcomp(file, fh, p);
- if (!ret)
- dbgarg (cmd, "ts_pid_pmt=%d, ts_pid_audio=%d,"
- " ts_pid_video=%d, ts_pid_pcr=%d, "
- "ps_size=%d, au_sample_rate=%d, "
- "au_pesid=%c, vi_frame_rate=%d, "
- "vi_frames_per_gop=%d, "
- "vi_bframes_count=%d, vi_pesid=%c\n",
- p->ts_pid_pmt,p->ts_pid_audio,
- p->ts_pid_video,p->ts_pid_pcr,
- p->ps_size, p->au_sample_rate,
- p->au_pesid, p->vi_frame_rate,
- p->vi_frames_per_gop,
- p->vi_bframes_count, p->vi_pesid);
- break;
- }
- case VIDIOC_S_MPEGCOMP:
- {
- struct v4l2_mpeg_compression *p=arg;
- /*FIXME: Several fields not shown */
- if (!vfd->vidioc_s_mpegcomp)
- break;
- dbgarg (cmd, "ts_pid_pmt=%d, ts_pid_audio=%d, "
- "ts_pid_video=%d, ts_pid_pcr=%d, ps_size=%d, "
- "au_sample_rate=%d, au_pesid=%c, "
- "vi_frame_rate=%d, vi_frames_per_gop=%d, "
- "vi_bframes_count=%d, vi_pesid=%c\n",
- p->ts_pid_pmt,p->ts_pid_audio, p->ts_pid_video,
- p->ts_pid_pcr, p->ps_size, p->au_sample_rate,
- p->au_pesid, p->vi_frame_rate,
- p->vi_frames_per_gop, p->vi_bframes_count,
- p->vi_pesid);
- ret=vfd->vidioc_s_mpegcomp(file, fh, p);
- break;
- }
- case VIDIOC_G_JPEGCOMP:
- {
- struct v4l2_jpegcompression *p=arg;
- if (!vfd->vidioc_g_jpegcomp)
- break;
- ret=vfd->vidioc_g_jpegcomp(file, fh, p);
- if (!ret)
- dbgarg (cmd, "quality=%d, APPn=%d, "
- "APP_len=%d, COM_len=%d, "
- "jpeg_markers=%d\n",
- p->quality,p->APPn,p->APP_len,
- p->COM_len,p->jpeg_markers);
- break;
- }
- case VIDIOC_S_JPEGCOMP:
- {
- struct v4l2_jpegcompression *p=arg;
- if (!vfd->vidioc_g_jpegcomp)
- break;
- dbgarg (cmd, "quality=%d, APPn=%d, APP_len=%d, "
- "COM_len=%d, jpeg_markers=%d\n",
- p->quality,p->APPn,p->APP_len,
- p->COM_len,p->jpeg_markers);
- ret=vfd->vidioc_s_jpegcomp(file, fh, p);
- break;
- }
- case VIDIOC_G_PARM:
- {
- struct v4l2_streamparm *p=arg;
- if (!vfd->vidioc_g_parm)
- break;
- ret=vfd->vidioc_g_parm(file, fh, p);
- dbgarg (cmd, "type=%d\n", p->type);
- break;
- }
- case VIDIOC_S_PARM:
- {
- struct v4l2_streamparm *p=arg;
- if (!vfd->vidioc_s_parm)
- break;
- dbgarg (cmd, "type=%d\n", p->type);
- ret=vfd->vidioc_s_parm(file, fh, p);
- break;
- }
- case VIDIOC_G_TUNER:
- {
- struct v4l2_tuner *p=arg;
- if (!vfd->vidioc_g_tuner)
- break;
- ret=vfd->vidioc_g_tuner(file, fh, p);
- if (!ret)
- dbgarg (cmd, "index=%d, name=%s, type=%d, "
- "capability=%d, rangelow=%d, "
- "rangehigh=%d, signal=%d, afc=%d, "
- "rxsubchans=%d, audmode=%d\n",
- p->index, p->name, p->type,
- p->capability, p->rangelow,
- p->rangehigh, p->rxsubchans,
- p->audmode, p->signal, p->afc);
- break;
- }
- case VIDIOC_S_TUNER:
- {
- struct v4l2_tuner *p=arg;
- if (!vfd->vidioc_s_tuner)
- break;
- dbgarg (cmd, "index=%d, name=%s, type=%d, "
- "capability=%d, rangelow=%d, rangehigh=%d, "
- "signal=%d, afc=%d, rxsubchans=%d, "
- "audmode=%d\n",p->index, p->name, p->type,
- p->capability, p->rangelow,p->rangehigh,
- p->rxsubchans, p->audmode, p->signal,
- p->afc);
- ret=vfd->vidioc_s_tuner(file, fh, p);
- break;
- }
- case VIDIOC_G_FREQUENCY:
- {
- struct v4l2_frequency *p=arg;
- if (!vfd->vidioc_g_frequency)
- break;
- ret=vfd->vidioc_g_frequency(file, fh, p);
- if (!ret)
- dbgarg (cmd, "tuner=%d, type=%d, frequency=%d\n",
- p->tuner,p->type,p->frequency);
- break;
- }
- case VIDIOC_S_FREQUENCY:
- {
- struct v4l2_frequency *p=arg;
- if (!vfd->vidioc_s_frequency)
- break;
- dbgarg (cmd, "tuner=%d, type=%d, frequency=%d\n",
- p->tuner,p->type,p->frequency);
- ret=vfd->vidioc_s_frequency(file, fh, p);
- break;
- }
- case VIDIOC_G_SLICED_VBI_CAP:
- {
- struct v4l2_sliced_vbi_cap *p=arg;
- if (!vfd->vidioc_g_sliced_vbi_cap)
- break;
- ret=vfd->vidioc_g_sliced_vbi_cap(file, fh, p);
- if (!ret)
- dbgarg (cmd, "service_set=%d\n", p->service_set);
- break;
- }
- case VIDIOC_LOG_STATUS:
- {
- if (!vfd->vidioc_log_status)
- break;
- ret=vfd->vidioc_log_status(file, fh);
- break;
- }
-
- /* --- Others --------------------------------------------- */
-
- default:
- ret=v4l_compat_translate_ioctl(inode,file,cmd,arg,__video_do_ioctl);
- }
-
- if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) {
- if (ret<0) {
- printk ("%s: err:\n", vfd->name);
- v4l_print_ioctl(vfd->name, cmd);
- }
- }
-
- return ret;
-}
-
-int video_ioctl2 (struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- char sbuf[128];
- void *mbuf = NULL;
- void *parg = NULL;
- int err = -EINVAL;
- int is_ext_ctrl;
- size_t ctrls_size = 0;
- void __user *user_ptr = NULL;
-
-#ifdef __OLD_VIDIOC_
- cmd = video_fix_command(cmd);
-#endif
- is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS ||
- cmd == VIDIOC_TRY_EXT_CTRLS);
-
- /* Copy arguments into temp kernel buffer */
- switch (_IOC_DIR(cmd)) {
- case _IOC_NONE:
- parg = NULL;
- break;
- case _IOC_READ:
- case _IOC_WRITE:
- case (_IOC_WRITE | _IOC_READ):
- if (_IOC_SIZE(cmd) <= sizeof(sbuf)) {
- parg = sbuf;
- } else {
- /* too big to allocate from stack */
- mbuf = kmalloc(_IOC_SIZE(cmd),GFP_KERNEL);
- if (NULL == mbuf)
- return -ENOMEM;
- parg = mbuf;
- }
-
- err = -EFAULT;
- if (_IOC_DIR(cmd) & _IOC_WRITE)
- if (copy_from_user(parg, (void __user *)arg, _IOC_SIZE(cmd)))
- goto out;
- break;
- }
-
- if (is_ext_ctrl) {
- struct v4l2_ext_controls *p = parg;
-
- /* In case of an error, tell the caller that it wasn't
- a specific control that caused it. */
- p->error_idx = p->count;
- user_ptr = (void __user *)p->controls;
- if (p->count) {
- ctrls_size = sizeof(struct v4l2_ext_control) * p->count;
- /* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */
- mbuf = kmalloc(ctrls_size, GFP_KERNEL);
- err = -ENOMEM;
- if (NULL == mbuf)
- goto out_ext_ctrl;
- err = -EFAULT;
- if (copy_from_user(mbuf, user_ptr, ctrls_size))
- goto out_ext_ctrl;
- p->controls = mbuf;
- }
- }
-
- /* Handles IOCTL */
- err = __video_do_ioctl(inode, file, cmd, parg);
- if (err == -ENOIOCTLCMD)
- err = -EINVAL;
- if (is_ext_ctrl) {
- struct v4l2_ext_controls *p = parg;
-
- p->controls = (void *)user_ptr;
- if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size))
- err = -EFAULT;
- goto out_ext_ctrl;
- }
- if (err < 0)
- goto out;
-
-out_ext_ctrl:
- /* Copy results into user buffer */
- switch (_IOC_DIR(cmd))
- {
- case _IOC_READ:
- case (_IOC_WRITE | _IOC_READ):
- if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd)))
- err = -EFAULT;
- break;
- }
-
-out:
- kfree(mbuf);
- return err;
-}
-
-
static struct file_operations video_fops;
/**
int i=0;
int base;
int end;
- int ret;
char *name_base;
switch(type)
{
case VFL_TYPE_GRABBER:
- base=MINOR_VFL_TYPE_GRABBER_MIN;
- end=MINOR_VFL_TYPE_GRABBER_MAX+1;
+ base=0;
+ end=64;
name_base = "video";
break;
case VFL_TYPE_VTX:
- base=MINOR_VFL_TYPE_VTX_MIN;
- end=MINOR_VFL_TYPE_VTX_MAX+1;
+ base=192;
+ end=224;
name_base = "vtx";
break;
case VFL_TYPE_VBI:
- base=MINOR_VFL_TYPE_VBI_MIN;
- end=MINOR_VFL_TYPE_VBI_MAX+1;
+ base=224;
+ end=256;
name_base = "vbi";
break;
case VFL_TYPE_RADIO:
- base=MINOR_VFL_TYPE_RADIO_MIN;
- end=MINOR_VFL_TYPE_RADIO_MAX+1;
+ base=64;
+ end=128;
name_base = "radio";
break;
default:
- printk(KERN_ERR "%s called with unknown type: %d\n",
- __FUNCTION__, type);
return -1;
}
video_device[i]=vfd;
vfd->minor=i;
mutex_unlock(&videodev_lock);
- mutex_init(&vfd->lock);
+
+ sprintf(vfd->devfs_name, "v4l/%s%d", name_base, i - base);
+ devfs_mk_cdev(MKDEV(VIDEO_MAJOR, vfd->minor),
+ S_IFCHR | S_IRUSR | S_IWUSR, vfd->devfs_name);
+ init_MUTEX(&vfd->lock);
/* sysfs class */
memset(&vfd->class_dev, 0x00, sizeof(vfd->class_dev));
vfd->class_dev.dev = vfd->dev;
vfd->class_dev.class = &video_class;
vfd->class_dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor);
- sprintf(vfd->class_dev.class_id, "%s%d", name_base, i - base);
- ret = class_device_register(&vfd->class_dev);
- if (ret < 0) {
- printk(KERN_ERR "%s: class_device_register failed\n",
- __FUNCTION__);
- goto fail_minor;
- }
- ret = class_device_create_file(&vfd->class_dev, &class_device_attr_name);
- if (ret < 0) {
- printk(KERN_ERR "%s: class_device_create_file 'name' failed\n",
- __FUNCTION__);
- goto fail_classdev;
- }
+ strlcpy(vfd->class_dev.class_id, vfd->devfs_name + 4, BUS_ID_SIZE);
+ class_device_register(&vfd->class_dev);
+ class_device_create_file(&vfd->class_dev,
+ &class_device_attr_name);
#if 1
/* needed until all drivers are fixed */
"http://lwn.net/Articles/36850/\n", vfd->name);
#endif
return 0;
-
-fail_classdev:
- class_device_unregister(&vfd->class_dev);
-fail_minor:
- mutex_lock(&videodev_lock);
- video_device[vfd->minor] = NULL;
- vfd->minor = -1;
- mutex_unlock(&videodev_lock);
- return ret;
}
/**
if(video_device[vfd->minor]!=vfd)
panic("videodev: bad unregister");
+ devfs_remove(vfd->devfs_name);
video_device[vfd->minor]=NULL;
class_device_unregister(&vfd->class_dev);
mutex_unlock(&videodev_lock);
}
-/*
- * Video fs operations
- */
+
static struct file_operations video_fops=
{
.owner = THIS_MODULE,
{
int ret;
- printk(KERN_INFO "Linux video capture interface: v2.00\n");
+ printk(KERN_INFO "Linux video capture interface: v1.00\n");
if (register_chrdev(VIDEO_MAJOR, VIDEO_NAME, &video_fops)) {
printk(KERN_WARNING "video_dev: unable to get major %d\n", VIDEO_MAJOR);
return -EIO;
EXPORT_SYMBOL(video_usercopy);
EXPORT_SYMBOL(video_exclusive_open);
EXPORT_SYMBOL(video_exclusive_release);
-EXPORT_SYMBOL(video_ioctl2);
EXPORT_SYMBOL(video_device_alloc);
EXPORT_SYMBOL(video_device_release);
-MODULE_AUTHOR("Alan Cox, Mauro Carvalho Chehab <mchehab@infradead.org>");
-MODULE_DESCRIPTION("Device registrar for Video4Linux drivers v2");
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("Device registrar for Video4Linux drivers");
MODULE_LICENSE("GPL");
git://git.onelab.eu / linux-2.6.git / blobdiff