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[media] v4l2-compat-ioctl32: add VIDIOC_DQEVENT support 

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2011-06-07 11:43:57 -03:00 committed by Mauro Carvalho Chehab
parent 5138870d68
commit 2330fb8242
2 changed files with 38 additions and 0 deletions
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37
drivers/media/video/v4l2-compat-ioctl32.c
View File

@ -662,6 +662,32 @@ static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext
return 0;
}
struct v4l2_event32 {
__u32 type;
union {
__u8 data[64];
} u;
__u32 pending;
__u32 sequence;
struct compat_timespec timestamp;
__u32 id;
__u32 reserved[8];
};
static int put_v4l2_event32(struct v4l2_event *kp, struct v4l2_event32 __user *up)
{
if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_event32)) ||
put_user(kp->type, &up->type) ||
copy_to_user(&up->u, &kp->u, sizeof(kp->u)) ||
put_user(kp->pending, &up->pending) ||
put_user(kp->sequence, &up->sequence) ||
put_compat_timespec(&kp->timestamp, &up->timestamp) ||
put_user(kp->id, &up->id) ||
copy_to_user(up->reserved, kp->reserved, 8 * sizeof(__u32)))
return -EFAULT;
return 0;
}
#define VIDIOC_G_FMT32 _IOWR('V', 4, struct v4l2_format32)
#define VIDIOC_S_FMT32 _IOWR('V', 5, struct v4l2_format32)
#define VIDIOC_QUERYBUF32 _IOWR('V', 9, struct v4l2_buffer32)
@ -675,6 +701,7 @@ static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext
#define VIDIOC_G_EXT_CTRLS32 _IOWR('V', 71, struct v4l2_ext_controls32)
#define VIDIOC_S_EXT_CTRLS32 _IOWR('V', 72, struct v4l2_ext_controls32)
#define VIDIOC_TRY_EXT_CTRLS32 _IOWR('V', 73, struct v4l2_ext_controls32)
#define VIDIOC_DQEVENT32 _IOR ('V', 89, struct v4l2_event32)
#define VIDIOC_OVERLAY32 _IOW ('V', 14, s32)
#define VIDIOC_STREAMON32 _IOW ('V', 18, s32)
@ -693,6 +720,7 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
struct v4l2_input v2i;
struct v4l2_standard v2s;
struct v4l2_ext_controls v2ecs;
struct v4l2_event v2ev;
unsigned long vx;
int vi;
} karg;
@ -715,6 +743,7 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
case VIDIOC_G_EXT_CTRLS32: cmd = VIDIOC_G_EXT_CTRLS; break;
case VIDIOC_S_EXT_CTRLS32: cmd = VIDIOC_S_EXT_CTRLS; break;
case VIDIOC_TRY_EXT_CTRLS32: cmd = VIDIOC_TRY_EXT_CTRLS; break;
case VIDIOC_DQEVENT32: cmd = VIDIOC_DQEVENT; break;
case VIDIOC_OVERLAY32: cmd = VIDIOC_OVERLAY; break;
case VIDIOC_STREAMON32: cmd = VIDIOC_STREAMON; break;
case VIDIOC_STREAMOFF32: cmd = VIDIOC_STREAMOFF; break;
@ -778,6 +807,9 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
err = get_v4l2_ext_controls32(&karg.v2ecs, up);
compatible_arg = 0;
break;
case VIDIOC_DQEVENT:
compatible_arg = 0;
break;
}
if (err)
return err;
@ -818,6 +850,10 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
err = put_v4l2_framebuffer32(&karg.v2fb, up);
break;
case VIDIOC_DQEVENT:
err = put_v4l2_event32(&karg.v2ev, up);
break;
case VIDIOC_G_FMT:
case VIDIOC_S_FMT:
case VIDIOC_TRY_FMT:
@ -920,6 +956,7 @@ long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
case VIDIOC_S_DV_TIMINGS:
case VIDIOC_G_DV_TIMINGS:
case VIDIOC_DQEVENT:
case VIDIOC_DQEVENT32:
case VIDIOC_SUBSCRIBE_EVENT:
case VIDIOC_UNSUBSCRIBE_EVENT:
ret = do_video_ioctl(file, cmd, arg);

1
kernel/compat.c
View File

@ -158,6 +158,7 @@ int put_compat_timespec(const struct timespec *ts, struct compat_timespec __user
__put_user(ts->tv_sec, &cts->tv_sec) ||
__put_user(ts->tv_nsec, &cts->tv_nsec)) ? -EFAULT : 0;
}
EXPORT_SYMBOL_GPL(put_compat_timespec);
static long compat_nanosleep_restart(struct restart_block *restart)
{