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path: root/drivers/media/video/videodev.c
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Diffstat (limited to 'drivers/media/video/videodev.c')
-rw-r--r--drivers/media/video/videodev.c735
1 files changed, 466 insertions, 269 deletions
diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c
index 7649860a388d..6616e6570557 100644
--- a/drivers/media/video/videodev.c
+++ b/drivers/media/video/videodev.c
@@ -17,15 +17,19 @@
*/
#define dbgarg(cmd, fmt, arg...) \
- if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \
+ do { \
+ if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \
printk(KERN_DEBUG "%s: ", vfd->name); \
v4l_printk_ioctl(cmd); \
printk(" " fmt, ## arg); \
- }
+ } \
+ } while (0)
#define dbgarg2(fmt, arg...) \
- if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \
- printk(KERN_DEBUG "%s: " fmt, vfd->name, ## arg);
+ do { \
+ if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \
+ printk(KERN_DEBUG "%s: " fmt, vfd->name, ## arg);\
+ } while (0)
#include <linux/module.h>
#include <linux/types.h>
@@ -138,7 +142,7 @@ EXPORT_SYMBOL(v4l2_video_std_construct);
/* ----------------------------------------------------------------- */
/* some arrays for pretty-printing debug messages of enum types */
-char *v4l2_field_names[] = {
+const char *v4l2_field_names[] = {
[V4L2_FIELD_ANY] = "any",
[V4L2_FIELD_NONE] = "none",
[V4L2_FIELD_TOP] = "top",
@@ -152,19 +156,19 @@ char *v4l2_field_names[] = {
};
EXPORT_SYMBOL(v4l2_field_names);
-char *v4l2_type_names[] = {
- [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "video-cap",
- [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "video-over",
- [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "video-out",
+const char *v4l2_type_names[] = {
+ [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap",
+ [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay",
+ [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out",
[V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap",
[V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out",
[V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap",
[V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out",
- [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "video-out-over",
+ [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay",
};
EXPORT_SYMBOL(v4l2_type_names);
-static char *v4l2_memory_names[] = {
+static const char *v4l2_memory_names[] = {
[V4L2_MEMORY_MMAP] = "mmap",
[V4L2_MEMORY_USERPTR] = "userptr",
[V4L2_MEMORY_OVERLAY] = "overlay",
@@ -278,6 +282,7 @@ static const char *v4l2_ioctls[] = {
[_IOC_NR(VIDIOC_DBG_G_REGISTER)] = "VIDIOC_DBG_G_REGISTER",
[_IOC_NR(VIDIOC_G_CHIP_IDENT)] = "VIDIOC_G_CHIP_IDENT",
+ [_IOC_NR(VIDIOC_S_HW_FREQ_SEEK)] = "VIDIOC_S_HW_FREQ_SEEK",
#endif
};
#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
@@ -371,6 +376,14 @@ EXPORT_SYMBOL(v4l_printk_ioctl);
* sysfs stuff
*/
+static ssize_t show_index(struct device *cd,
+ struct device_attribute *attr, char *buf)
+{
+ struct video_device *vfd = container_of(cd, struct video_device,
+ class_dev);
+ return sprintf(buf, "%i\n", vfd->index);
+}
+
static ssize_t show_name(struct device *cd,
struct device_attribute *attr, char *buf)
{
@@ -379,6 +392,12 @@ static ssize_t show_name(struct device *cd,
return sprintf(buf, "%.*s\n", (int)sizeof(vfd->name), vfd->name);
}
+static struct device_attribute video_device_attrs[] = {
+ __ATTR(name, S_IRUGO, show_name, NULL),
+ __ATTR(index, S_IRUGO, show_index, NULL),
+ __ATTR_NULL
+};
+
struct video_device *video_device_alloc(void)
{
struct video_device *vfd;
@@ -407,11 +426,6 @@ static void video_release(struct device *cd)
vfd->release(vfd);
}
-static struct device_attribute video_device_attrs[] = {
- __ATTR(name, S_IRUGO, show_name, NULL),
- __ATTR_NULL
-};
-
static struct class video_class = {
.name = VIDEO_NAME,
.dev_attrs = video_device_attrs,
@@ -650,7 +664,7 @@ static void dbgbuf(unsigned int cmd, struct video_device *vfd,
p->field, p->sequence,
prt_names(p->memory, v4l2_memory_names),
p->m.userptr, p->length);
- dbgarg2 ("timecode= %02d:%02d:%02d type=%d, "
+ 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);
@@ -659,7 +673,7 @@ static void dbgbuf(unsigned int cmd, struct video_device *vfd,
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,
+ dbgarg2("%sRect start at %dx%d, size=%dx%d\n", s, r->left, r->top,
r->width, r->height);
};
@@ -677,40 +691,85 @@ static inline void v4l_print_pix_fmt (struct video_device *vfd,
fmt->bytesperline, fmt->sizeimage, fmt->colorspace);
};
+static inline void v4l_print_ext_ctrls(unsigned int cmd,
+ struct video_device *vfd, struct v4l2_ext_controls *c, int show_vals)
+{
+ __u32 i;
+
+ if (!(vfd->debug & V4L2_DEBUG_IOCTL_ARG))
+ return;
+ dbgarg(cmd, "");
+ printk(KERN_CONT "class=0x%x", c->ctrl_class);
+ for (i = 0; i < c->count; i++) {
+ if (show_vals)
+ printk(KERN_CONT " id/val=0x%x/0x%x",
+ c->controls[i].id, c->controls[i].value);
+ else
+ printk(KERN_CONT " id=0x%x", c->controls[i].id);
+ }
+ printk(KERN_CONT "\n");
+};
+
+static inline int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
+{
+ __u32 i;
+
+ /* zero the reserved fields */
+ c->reserved[0] = c->reserved[1] = 0;
+ for (i = 0; i < c->count; i++) {
+ c->controls[i].reserved2[0] = 0;
+ c->controls[i].reserved2[1] = 0;
+ }
+ /* V4L2_CID_PRIVATE_BASE cannot be used as control class
+ when using extended controls.
+ Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL
+ is it allowed for backwards compatibility.
+ */
+ if (!allow_priv && c->ctrl_class == V4L2_CID_PRIVATE_BASE)
+ return 0;
+ /* Check that all controls are from the same control class. */
+ for (i = 0; i < c->count; i++) {
+ if (V4L2_CTRL_ID2CLASS(c->controls[i].id) != c->ctrl_class) {
+ c->error_idx = i;
+ return 0;
+ }
+ }
+ return 1;
+}
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)
+ if (vfd->vidioc_try_fmt_vid_cap)
return (0);
break;
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- if (vfd->vidioc_try_fmt_overlay)
+ if (vfd->vidioc_try_fmt_vid_overlay)
return (0);
break;
- case V4L2_BUF_TYPE_VBI_CAPTURE:
- if (vfd->vidioc_try_fmt_vbi)
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+ if (vfd->vidioc_try_fmt_vid_out)
return (0);
break;
- case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
- if (vfd->vidioc_try_fmt_vbi_output)
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
+ if (vfd->vidioc_try_fmt_vid_out_overlay)
return (0);
break;
- case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
- if (vfd->vidioc_try_fmt_vbi_capture)
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ if (vfd->vidioc_try_fmt_vbi_cap)
return (0);
break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- if (vfd->vidioc_try_fmt_video_output)
+ case V4L2_BUF_TYPE_VBI_OUTPUT:
+ if (vfd->vidioc_try_fmt_vbi_out)
return (0);
break;
- case V4L2_BUF_TYPE_VBI_OUTPUT:
- if (vfd->vidioc_try_fmt_vbi_output)
+ case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
+ if (vfd->vidioc_try_fmt_sliced_vbi_cap)
return (0);
break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
- if (vfd->vidioc_try_fmt_output_overlay)
+ case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
+ if (vfd->vidioc_try_fmt_sliced_vbi_out)
return (0);
break;
case V4L2_BUF_TYPE_PRIVATE:
@@ -827,46 +886,37 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
switch (type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- if (vfd->vidioc_enum_fmt_cap)
- ret=vfd->vidioc_enum_fmt_cap(file, fh, f);
+ if (vfd->vidioc_enum_fmt_vid_cap)
+ ret = vfd->vidioc_enum_fmt_vid_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);
+ if (vfd->vidioc_enum_fmt_vid_overlay)
+ ret = vfd->vidioc_enum_fmt_vid_overlay(file,
+ fh, f);
break;
+#if 1
+ /* V4L2_BUF_TYPE_VBI_CAPTURE should not support VIDIOC_ENUM_FMT
+ * according to the spec. The bttv and saa7134 drivers support
+ * it though, so just warn that this is deprecated and will be
+ * removed in the near future. */
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);
+ if (vfd->vidioc_enum_fmt_vbi_cap) {
+ printk(KERN_WARNING "vidioc_enum_fmt_vbi_cap will be removed in 2.6.28!\n");
+ ret = vfd->vidioc_enum_fmt_vbi_cap(file, fh, f);
+ }
break;
+#endif
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_VIDEO_OUTPUT_OVERLAY:
- if (vfd->vidioc_enum_fmt_output_overlay)
- ret=vfd->vidioc_enum_fmt_output_overlay(file, fh, f);
+ if (vfd->vidioc_enum_fmt_vid_out)
+ ret = vfd->vidioc_enum_fmt_vid_out(file, fh, f);
break;
case V4L2_BUF_TYPE_PRIVATE:
if (vfd->vidioc_enum_fmt_type_private)
- ret=vfd->vidioc_enum_fmt_type_private(file,
+ ret = vfd->vidioc_enum_fmt_type_private(file,
fh, f);
break;
+ default:
+ break;
}
if (!ret)
dbgarg (cmd, "index=%d, type=%d, flags=%d, "
@@ -882,54 +932,56 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
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;
+ memset(f->fmt.raw_data, 0, sizeof(f->fmt.raw_data));
/* FIXME: Should be one dump per type */
- dbgarg (cmd, "type=%s\n", prt_names(type,
- v4l2_type_names));
+ dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names));
- switch (type) {
+ switch (f->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- if (vfd->vidioc_g_fmt_cap)
- ret=vfd->vidioc_g_fmt_cap(file, fh, f);
+ if (vfd->vidioc_g_fmt_vid_cap)
+ ret = vfd->vidioc_g_fmt_vid_cap(file, fh, f);
if (!ret)
- v4l_print_pix_fmt(vfd,&f->fmt.pix);
+ 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);
+ if (vfd->vidioc_g_fmt_vid_overlay)
+ ret = vfd->vidioc_g_fmt_vid_overlay(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);
+ if (vfd->vidioc_g_fmt_vid_out)
+ ret = vfd->vidioc_g_fmt_vid_out(file, fh, f);
+ if (!ret)
+ v4l_print_pix_fmt(vfd, &f->fmt.pix);
break;
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
- if (vfd->vidioc_g_fmt_output_overlay)
- ret=vfd->vidioc_g_fmt_output_overlay(file, fh, f);
+ if (vfd->vidioc_g_fmt_vid_out_overlay)
+ ret = vfd->vidioc_g_fmt_vid_out_overlay(file,
+ fh, f);
+ break;
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ if (vfd->vidioc_g_fmt_vbi_cap)
+ ret = vfd->vidioc_g_fmt_vbi_cap(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);
+ if (vfd->vidioc_g_fmt_vbi_out)
+ ret = vfd->vidioc_g_fmt_vbi_out(file, fh, f);
+ break;
+ case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
+ if (vfd->vidioc_g_fmt_sliced_vbi_cap)
+ ret = vfd->vidioc_g_fmt_sliced_vbi_cap(file,
+ fh, f);
+ break;
+ case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
+ if (vfd->vidioc_g_fmt_sliced_vbi_out)
+ ret = vfd->vidioc_g_fmt_sliced_vbi_out(file,
+ fh, f);
break;
case V4L2_BUF_TYPE_PRIVATE:
if (vfd->vidioc_g_fmt_type_private)
- ret=vfd->vidioc_g_fmt_type_private(file,
+ ret = vfd->vidioc_g_fmt_type_private(file,
fh, f);
break;
}
@@ -941,48 +993,50 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
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));
+ dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names));
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);
+ v4l_print_pix_fmt(vfd, &f->fmt.pix);
+ if (vfd->vidioc_s_fmt_vid_cap)
+ ret = vfd->vidioc_s_fmt_vid_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);
+ if (vfd->vidioc_s_fmt_vid_overlay)
+ ret = vfd->vidioc_s_fmt_vid_overlay(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);
+ v4l_print_pix_fmt(vfd, &f->fmt.pix);
+ if (vfd->vidioc_s_fmt_vid_out)
+ ret = vfd->vidioc_s_fmt_vid_out(file, fh, f);
break;
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
- if (vfd->vidioc_s_fmt_output_overlay)
- ret=vfd->vidioc_s_fmt_output_overlay(file, fh, f);
+ if (vfd->vidioc_s_fmt_vid_out_overlay)
+ ret = vfd->vidioc_s_fmt_vid_out_overlay(file,
+ fh, f);
+ break;
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ if (vfd->vidioc_s_fmt_vbi_cap)
+ ret = vfd->vidioc_s_fmt_vbi_cap(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);
+ if (vfd->vidioc_s_fmt_vbi_out)
+ ret = vfd->vidioc_s_fmt_vbi_out(file, fh, f);
+ break;
+ case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
+ if (vfd->vidioc_s_fmt_sliced_vbi_cap)
+ ret = vfd->vidioc_s_fmt_sliced_vbi_cap(file,
+ fh, f);
+ break;
+ case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
+ if (vfd->vidioc_s_fmt_sliced_vbi_out)
+ ret = vfd->vidioc_s_fmt_sliced_vbi_out(file,
+ fh, f);
break;
case V4L2_BUF_TYPE_PRIVATE:
if (vfd->vidioc_s_fmt_type_private)
- ret=vfd->vidioc_s_fmt_type_private(file,
+ ret = vfd->vidioc_s_fmt_type_private(file,
fh, f);
break;
}
@@ -997,46 +1051,48 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
v4l2_type_names));
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 (vfd->vidioc_try_fmt_vid_cap)
+ ret = vfd->vidioc_try_fmt_vid_cap(file, fh, f);
if (!ret)
- v4l_print_pix_fmt(vfd,&f->fmt.pix);
+ 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);
+ if (vfd->vidioc_try_fmt_vid_overlay)
+ ret = vfd->vidioc_try_fmt_vid_overlay(file,
+ fh, f);
+ break;
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+ if (vfd->vidioc_try_fmt_vid_out)
+ ret = vfd->vidioc_try_fmt_vid_out(file, fh, f);
+ if (!ret)
+ v4l_print_pix_fmt(vfd, &f->fmt.pix);
+ break;
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
+ if (vfd->vidioc_try_fmt_vid_out_overlay)
+ ret = vfd->vidioc_try_fmt_vid_out_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);
+ if (vfd->vidioc_try_fmt_vbi_cap)
+ ret = vfd->vidioc_try_fmt_vbi_cap(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);
+ case V4L2_BUF_TYPE_VBI_OUTPUT:
+ if (vfd->vidioc_try_fmt_vbi_out)
+ ret = vfd->vidioc_try_fmt_vbi_out(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,
+ if (vfd->vidioc_try_fmt_sliced_vbi_cap)
+ ret = vfd->vidioc_try_fmt_sliced_vbi_cap(file,
fh, f);
break;
- case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
- if (vfd->vidioc_try_fmt_output_overlay)
- ret=vfd->vidioc_try_fmt_output_overlay(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,
+ case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
+ if (vfd->vidioc_try_fmt_sliced_vbi_out)
+ ret = vfd->vidioc_try_fmt_sliced_vbi_out(file,
fh, f);
break;
case V4L2_BUF_TYPE_PRIVATE:
if (vfd->vidioc_try_fmt_type_private)
- ret=vfd->vidioc_try_fmt_type_private(file,
+ ret = vfd->vidioc_try_fmt_type_private(file,
fh, f);
break;
}
@@ -1120,29 +1176,29 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
}
case VIDIOC_G_FBUF:
{
- struct v4l2_framebuffer *p=arg;
+ struct v4l2_framebuffer *p = arg;
+
if (!vfd->vidioc_g_fbuf)
break;
- ret=vfd->vidioc_g_fbuf(file, fh, arg);
+ ret = vfd->vidioc_g_fbuf(file, fh, arg);
if (!ret) {
- dbgarg (cmd, "capability=%d, flags=%d, base=0x%08lx\n",
- p->capability,p->flags,
+ dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n",
+ p->capability, p->flags,
(unsigned long)p->base);
- v4l_print_pix_fmt (vfd, &p->fmt);
+ v4l_print_pix_fmt(vfd, &p->fmt);
}
break;
}
case VIDIOC_S_FBUF:
{
- struct v4l2_framebuffer *p=arg;
+ 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);
-
+ dbgarg(cmd, "capability=0x%x, 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:
@@ -1194,7 +1250,7 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
v4l2_video_std_construct(p, curr_id, descr);
p->index = index;
- dbgarg(cmd, "index=%d, id=%Ld, name=%s, fps=%d/%d, "
+ dbgarg(cmd, "index=%d, id=0x%Lx, name=%s, fps=%d/%d, "
"framelines=%d\n", p->index,
(unsigned long long)p->id, p->name,
p->frameperiod.numerator,
@@ -1208,18 +1264,22 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
{
v4l2_std_id *id = arg;
- *id = vfd->current_norm;
-
- dbgarg (cmd, "value=%08Lx\n", (long long unsigned) *id);
+ ret = 0;
+ /* Calls the specific handler */
+ if (vfd->vidioc_g_std)
+ ret = vfd->vidioc_g_std(file, fh, id);
+ else
+ *id = vfd->current_norm;
- ret=0;
+ if (!ret)
+ dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id);
break;
}
case VIDIOC_S_STD:
{
v4l2_std_id *id = arg,norm;
- dbgarg (cmd, "value=%08Lx\n", (long long unsigned) *id);
+ dbgarg(cmd, "std=%08Lx\n", (long long unsigned)*id);
norm = (*id) & vfd->tvnorms;
if ( vfd->tvnorms && !norm) /* Check if std is supported */
@@ -1295,6 +1355,25 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
}
/* ------ output switching ---------- */
+ case VIDIOC_ENUMOUTPUT:
+ {
+ struct v4l2_output *p = arg;
+ int i = p->index;
+
+ if (!vfd->vidioc_enum_output)
+ break;
+ memset(p, 0, sizeof(*p));
+ p->index = i;
+
+ ret = vfd->vidioc_enum_output(file, fh, p);
+ if (!ret)
+ dbgarg(cmd, "index=%d, name=%s, type=%d, "
+ "audioset=0x%x, "
+ "modulator=%d, std=0x%08Lx\n",
+ p->index, p->name, p->type, p->audioset,
+ p->modulator, (unsigned long long)p->std);
+ break;
+ }
case VIDIOC_G_OUTPUT:
{
unsigned int *i = arg;
@@ -1320,132 +1399,172 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
/* --- controls ---------------------------------------------- */
case VIDIOC_QUERYCTRL:
{
- struct v4l2_queryctrl *p=arg;
+ struct v4l2_queryctrl *p = arg;
if (!vfd->vidioc_queryctrl)
break;
- ret=vfd->vidioc_queryctrl(file, fh, p);
-
+ 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);
+ dbgarg(cmd, "id=0x%x, 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);
+ else
+ dbgarg(cmd, "id=0x%x\n", p->id);
break;
}
case VIDIOC_G_CTRL:
{
struct v4l2_control *p = arg;
- if (!vfd->vidioc_g_ctrl)
+ if (vfd->vidioc_g_ctrl)
+ ret = vfd->vidioc_g_ctrl(file, fh, p);
+ else if (vfd->vidioc_g_ext_ctrls) {
+ struct v4l2_ext_controls ctrls;
+ struct v4l2_ext_control ctrl;
+
+ ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id);
+ ctrls.count = 1;
+ ctrls.controls = &ctrl;
+ ctrl.id = p->id;
+ ctrl.value = p->value;
+ if (check_ext_ctrls(&ctrls, 1)) {
+ ret = vfd->vidioc_g_ext_ctrls(file, fh, &ctrls);
+ if (ret == 0)
+ p->value = ctrl.value;
+ }
+ } else
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);
+ dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value);
+ else
+ dbgarg(cmd, "id=0x%x\n", p->id);
break;
}
case VIDIOC_S_CTRL:
{
struct v4l2_control *p = arg;
+ struct v4l2_ext_controls ctrls;
+ struct v4l2_ext_control ctrl;
+
+ if (!vfd->vidioc_s_ctrl && !vfd->vidioc_s_ext_ctrls)
+ break;
- if (!vfd->vidioc_s_ctrl)
+ dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value);
+
+ if (vfd->vidioc_s_ctrl) {
+ ret = vfd->vidioc_s_ctrl(file, fh, p);
+ break;
+ }
+ if (!vfd->vidioc_s_ext_ctrls)
break;
- dbgarg (cmd, "id=%d, value=%d\n", p->id, p->value);
- ret=vfd->vidioc_s_ctrl(file, fh, p);
+ ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id);
+ ctrls.count = 1;
+ ctrls.controls = &ctrl;
+ ctrl.id = p->id;
+ ctrl.value = p->value;
+ if (check_ext_ctrls(&ctrls, 1))
+ ret = vfd->vidioc_s_ext_ctrls(file, fh, &ctrls);
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);
- }
+ p->error_idx = p->count;
+ if (!vfd->vidioc_g_ext_ctrls)
+ break;
+ if (check_ext_ctrls(p, 0))
+ ret = vfd->vidioc_g_ext_ctrls(file, fh, p);
+ v4l_print_ext_ctrls(cmd, vfd, p, !ret);
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);
- }
+ p->error_idx = p->count;
+ if (!vfd->vidioc_s_ext_ctrls)
+ break;
+ v4l_print_ext_ctrls(cmd, vfd, p, 1);
+ if (check_ext_ctrls(p, 0))
+ 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);
- }
+ p->error_idx = p->count;
+ if (!vfd->vidioc_try_ext_ctrls)
+ break;
+ v4l_print_ext_ctrls(cmd, vfd, p, 1);
+ if (check_ext_ctrls(p, 0))
+ ret = vfd->vidioc_try_ext_ctrls(file, fh, p);
break;
}
case VIDIOC_QUERYMENU:
{
- struct v4l2_querymenu *p=arg;
+ struct v4l2_querymenu *p = arg;
+
if (!vfd->vidioc_querymenu)
break;
- ret=vfd->vidioc_querymenu(file, fh, p);
+ ret = vfd->vidioc_querymenu(file, fh, p);
if (!ret)
- dbgarg (cmd, "id=%d, index=%d, name=%s\n",
- p->id,p->index,p->name);
+ dbgarg(cmd, "id=0x%x, index=%d, name=%s\n",
+ p->id, p->index, p->name);
+ else
+ dbgarg(cmd, "id=0x%x, index=%d\n",
+ p->id, p->index);
break;
}
/* --- audio ---------------------------------------------- */
case VIDIOC_ENUMAUDIO:
{
- struct v4l2_audio *p=arg;
+ 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);
+ ret = vfd->vidioc_enumaudio(file, fh, p);
if (!ret)
- dbgarg2("index=%d, name=%s, capability=%d, "
- "mode=%d\n",p->index,p->name,
+ dbgarg(cmd, "index=%d, name=%s, capability=0x%x, "
+ "mode=0x%x\n", p->index, p->name,
p->capability, p->mode);
+ else
+ dbgarg(cmd, "index=%d\n", p->index);
break;
}
case VIDIOC_G_AUDIO:
{
- struct v4l2_audio *p=arg;
- __u32 index=p->index;
+ struct v4l2_audio *p = arg;
+ __u32 index = p->index;
if (!vfd->vidioc_g_audio)
break;
- memset(p,0,sizeof(*p));
- p->index=index;
- dbgarg(cmd, "Get for index=%d\n", p->index);
- ret=vfd->vidioc_g_audio(file, fh, p);
+ memset(p, 0, sizeof(*p));
+ p->index = 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);
+ dbgarg(cmd, "index=%d, name=%s, capability=0x%x, "
+ "mode=0x%x\n", p->index,
+ p->name, p->capability, p->mode);
+ else
+ dbgarg(cmd, "index=%d\n", p->index);
break;
}
case VIDIOC_S_AUDIO:
{
- struct v4l2_audio *p=arg;
+ 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,
+ dbgarg(cmd, "index=%d, name=%s, capability=0x%x, "
+ "mode=0x%x\n", p->index, p->name,
p->capability, p->mode);
- ret=vfd->vidioc_s_audio(file, fh, p);
+ ret = vfd->vidioc_s_audio(file, fh, p);
break;
}
case VIDIOC_ENUMAUDOUT:
@@ -1521,9 +1640,9 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
struct v4l2_crop *p=arg;
if (!vfd->vidioc_g_crop)
break;
+ dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names));
ret=vfd->vidioc_g_crop(file, fh, p);
if (!ret) {
- dbgarg(cmd, "type=%d\n", p->type);
dbgrect(vfd, "", &p->c);
}
break;
@@ -1533,21 +1652,24 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
struct v4l2_crop *p=arg;
if (!vfd->vidioc_s_crop)
break;
- dbgarg(cmd, "type=%d\n", p->type);
+ dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names));
dbgrect(vfd, "", &p->c);
ret=vfd->vidioc_s_crop(file, fh, p);
break;
}
case VIDIOC_CROPCAP:
{
- struct v4l2_cropcap *p=arg;
+ 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);
+ dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names));
+ ret = vfd->vidioc_cropcap(file, fh, p);
+ if (!ret) {
+ dbgrect(vfd, "bounds ", &p->bounds);
+ dbgrect(vfd, "defrect ", &p->defrect);
+ }
break;
}
case VIDIOC_G_JPEGCOMP:
@@ -1590,26 +1712,26 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
}
case VIDIOC_ENCODER_CMD:
{
- struct v4l2_encoder_cmd *p=arg;
+ struct v4l2_encoder_cmd *p = arg;
if (!vfd->vidioc_encoder_cmd)
break;
- ret=vfd->vidioc_encoder_cmd(file, fh, p);
+ memset(&p->raw, 0, sizeof(p->raw));
+ ret = vfd->vidioc_encoder_cmd(file, fh, p);
if (!ret)
- dbgarg (cmd, "cmd=%d, flags=%d\n",
- p->cmd,p->flags);
+ dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags);
break;
}
case VIDIOC_TRY_ENCODER_CMD:
{
- struct v4l2_encoder_cmd *p=arg;
+ struct v4l2_encoder_cmd *p = arg;
if (!vfd->vidioc_try_encoder_cmd)
break;
- ret=vfd->vidioc_try_encoder_cmd(file, fh, p);
+ memset(&p->raw, 0, sizeof(p->raw));
+ ret = vfd->vidioc_try_encoder_cmd(file, fh, p);
if (!ret)
- dbgarg (cmd, "cmd=%d, flags=%d\n",
- p->cmd,p->flags);
+ dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags);
break;
}
case VIDIOC_G_PARM:
@@ -1649,54 +1771,57 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
}
case VIDIOC_G_TUNER:
{
- struct v4l2_tuner *p=arg;
- __u32 index=p->index;
+ struct v4l2_tuner *p = arg;
+ __u32 index = p->index;
if (!vfd->vidioc_g_tuner)
break;
- memset(p,0,sizeof(*p));
- p->index=index;
+ memset(p, 0, sizeof(*p));
+ p->index = index;
- ret=vfd->vidioc_g_tuner(file, fh, p);
+ ret = vfd->vidioc_g_tuner(file, fh, p);
if (!ret)
- dbgarg (cmd, "index=%d, name=%s, type=%d, "
- "capability=%d, rangelow=%d, "
+ dbgarg(cmd, "index=%d, name=%s, type=%d, "
+ "capability=0x%x, rangelow=%d, "
"rangehigh=%d, signal=%d, afc=%d, "
- "rxsubchans=%d, audmode=%d\n",
+ "rxsubchans=0x%x, audmode=%d\n",
p->index, p->name, p->type,
p->capability, p->rangelow,
- p->rangehigh, p->rxsubchans,
- p->audmode, p->signal, p->afc);
+ p->rangehigh, p->signal, p->afc,
+ p->rxsubchans, p->audmode);
break;
}
case VIDIOC_S_TUNER:
{
- struct v4l2_tuner *p=arg;
+ 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);
+ dbgarg(cmd, "index=%d, name=%s, type=%d, "
+ "capability=0x%x, rangelow=%d, "
+ "rangehigh=%d, signal=%d, afc=%d, "
+ "rxsubchans=0x%x, audmode=%d\n",
+ p->index, p->name, p->type,
+ p->capability, p->rangelow,
+ p->rangehigh, p->signal, p->afc,
+ p->rxsubchans, p->audmode);
+ ret = vfd->vidioc_s_tuner(file, fh, p);
break;
}
case VIDIOC_G_FREQUENCY:
{
- struct v4l2_frequency *p=arg;
+ struct v4l2_frequency *p = arg;
+
if (!vfd->vidioc_g_frequency)
break;
- memset(p,0,sizeof(*p));
+ memset(p->reserved, 0, sizeof(p->reserved));
- ret=vfd->vidioc_g_frequency(file, fh, p);
+ 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);
+ dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n",
+ p->tuner, p->type, p->frequency);
break;
}
case VIDIOC_S_FREQUENCY:
@@ -1711,12 +1836,17 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
}
case VIDIOC_G_SLICED_VBI_CAP:
{
- struct v4l2_sliced_vbi_cap *p=arg;
+ struct v4l2_sliced_vbi_cap *p = arg;
+ __u32 type = p->type;
+
if (!vfd->vidioc_g_sliced_vbi_cap)
break;
- ret=vfd->vidioc_g_sliced_vbi_cap(file, fh, p);
+ memset(p, 0, sizeof(*p));
+ p->type = type;
+ dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names));
+ ret = vfd->vidioc_g_sliced_vbi_cap(file, fh, p);
if (!ret)
- dbgarg (cmd, "service_set=%d\n", p->service_set);
+ dbgarg2("service_set=%d\n", p->service_set);
break;
}
case VIDIOC_LOG_STATUS:
@@ -1763,13 +1893,23 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
ret = vfd->vidioc_default(file, fh, cmd, arg);
break;
}
+ case VIDIOC_S_HW_FREQ_SEEK:
+ {
+ struct v4l2_hw_freq_seek *p = arg;
+ if (!vfd->vidioc_s_hw_freq_seek)
+ break;
+ dbgarg(cmd,
+ "tuner=%d, type=%d, seek_upward=%d, wrap_around=%d\n",
+ p->tuner, p->type, p->seek_upward, p->wrap_around);
+ ret = vfd->vidioc_s_hw_freq_seek(file, fh, p);
+ break;
+ }
} /* switch */
if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) {
- if (ret<0) {
- printk("%s: err: on ", vfd->name);
+ if (ret < 0) {
v4l_print_ioctl(vfd->name, cmd);
- printk("\n");
+ printk(KERN_CONT " error %d\n", ret);
}
}
@@ -1871,8 +2011,55 @@ out:
}
EXPORT_SYMBOL(video_ioctl2);
+/**
+ * get_index - assign stream number based on parent device
+ * @vdev: video_device to assign index number to, vdev->dev should be assigned
+ * @num: -1 if auto assign, requested number otherwise
+ *
+ *
+ * returns -ENFILE if num is already in use, a free index number if
+ * successful.
+ */
+static int get_index(struct video_device *vdev, int num)
+{
+ u32 used = 0;
+ const int max_index = sizeof(used) * 8 - 1;
+ int i;
+
+ /* Currently a single v4l driver instance cannot create more than
+ 32 devices.
+ Increase to u64 or an array of u32 if more are needed. */
+ if (num > max_index) {
+ printk(KERN_ERR "videodev: %s num is too large\n", __func__);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < VIDEO_NUM_DEVICES; i++) {
+ if (video_device[i] != NULL &&
+ video_device[i] != vdev &&
+ video_device[i]->dev == vdev->dev) {
+ used |= 1 << video_device[i]->index;
+ }
+ }
+
+ if (num >= 0) {
+ if (used & (1 << num))
+ return -ENFILE;
+ return num;
+ }
+
+ i = ffz(used);
+ return i > max_index ? -ENFILE : i;
+}
+
static const struct file_operations video_fops;
+int video_register_device(struct video_device *vfd, int type, int nr)
+{
+ return video_register_device_index(vfd, type, nr, -1);
+}
+EXPORT_SYMBOL(video_register_device);
+
/**
* video_register_device - register video4linux devices
* @vfd: video device structure we want to register
@@ -1898,7 +2085,8 @@ static const struct file_operations video_fops;
* %VFL_TYPE_RADIO - A radio card
*/
-int video_register_device(struct video_device *vfd, int type, int nr)
+int video_register_device_index(struct video_device *vfd, int type, int nr,
+ int index)
{
int i=0;
int base;
@@ -1955,20 +2143,29 @@ int video_register_device(struct video_device *vfd, int type, int nr)
}
video_device[i]=vfd;
vfd->minor=i;
+
+ ret = get_index(vfd, index);
+ vfd->index = ret;
+
mutex_unlock(&videodev_lock);
+
+ if (ret < 0) {
+ printk(KERN_ERR "%s: get_index failed\n", __func__);
+ goto fail_minor;
+ }
+
mutex_init(&vfd->lock);
/* sysfs class */
memset(&vfd->class_dev, 0x00, sizeof(vfd->class_dev));
- if (vfd->dev)
- vfd->class_dev.parent = vfd->dev;
vfd->class_dev.class = &video_class;
vfd->class_dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor);
+ if (vfd->dev)
+ vfd->class_dev.parent = vfd->dev;
sprintf(vfd->class_dev.bus_id, "%s%d", name_base, i - base);
ret = device_register(&vfd->class_dev);
if (ret < 0) {
- printk(KERN_ERR "%s: device_register failed\n",
- __func__);
+ printk(KERN_ERR "%s: device_register failed\n", __func__);
goto fail_minor;
}
@@ -1988,7 +2185,7 @@ fail_minor:
mutex_unlock(&videodev_lock);
return ret;
}
-EXPORT_SYMBOL(video_register_device);
+EXPORT_SYMBOL(video_register_device_index);
/**
* video_unregister_device - unregister a video4linux device
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-02 08:40:56 +0300