diff options
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-ioctl.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-ioctl.c | 50 |
1 files changed, 36 insertions, 14 deletions
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 7de041bae84f..c63746968fa3 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -474,13 +474,13 @@ static void v4l_print_buffer(const void *arg, bool write_only) const struct v4l2_plane *plane; int i; - pr_cont("%02ld:%02d:%02d.%08ld index=%d, type=%s, flags=0x%08x, field=%s, sequence=%d, memory=%s", + pr_cont("%02ld:%02d:%02d.%08ld index=%d, type=%s, request_fd=%d, flags=0x%08x, field=%s, sequence=%d, memory=%s", p->timestamp.tv_sec / 3600, (int)(p->timestamp.tv_sec / 60) % 60, (int)(p->timestamp.tv_sec % 60), (long)p->timestamp.tv_usec, p->index, - prt_names(p->type, v4l2_type_names), + prt_names(p->type, v4l2_type_names), p->request_fd, p->flags, prt_names(p->field, v4l2_field_names), p->sequence, prt_names(p->memory, v4l2_memory_names)); @@ -590,8 +590,8 @@ static void v4l_print_ext_controls(const void *arg, bool write_only) const struct v4l2_ext_controls *p = arg; int i; - pr_cont("which=0x%x, count=%d, error_idx=%d", - p->which, p->count, p->error_idx); + pr_cont("which=0x%x, count=%d, error_idx=%d, request_fd=%d", + p->which, p->count, p->error_idx, p->request_fd); for (i = 0; i < p->count; i++) { if (!p->controls[i].size) pr_cont(", id/val=0x%x/0x%x", @@ -907,7 +907,7 @@ static 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; + c->reserved[0] = 0; for (i = 0; i < c->count; i++) c->controls[i].reserved2[0] = 0; @@ -1309,6 +1309,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_PIX_FMT_H263: descr = "H.263"; break; case V4L2_PIX_FMT_MPEG1: descr = "MPEG-1 ES"; break; case V4L2_PIX_FMT_MPEG2: descr = "MPEG-2 ES"; break; + case V4L2_PIX_FMT_MPEG2_SLICE: descr = "MPEG-2 Parsed Slice Data"; break; case V4L2_PIX_FMT_MPEG4: descr = "MPEG-4 part 2 ES"; break; case V4L2_PIX_FMT_XVID: descr = "Xvid"; break; case V4L2_PIX_FMT_VC1_ANNEX_G: descr = "VC-1 (SMPTE 412M Annex G)"; break; @@ -1336,6 +1337,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_PIX_FMT_SE401: descr = "GSPCA SE401"; break; case V4L2_PIX_FMT_S5C_UYVY_JPG: descr = "S5C73MX interleaved UYVY/JPEG"; break; case V4L2_PIX_FMT_MT21C: descr = "Mediatek Compressed Format"; break; + case V4L2_PIX_FMT_SUNXI_TILED_NV12: descr = "Sunxi Tiled NV12 Format"; break; default: WARN(1, "Unknown pixelformat 0x%08x\n", fmt->pixelformat); if (fmt->description[0]) @@ -1877,7 +1879,7 @@ static int v4l_reqbufs(const struct v4l2_ioctl_ops *ops, if (ret) return ret; - CLEAR_AFTER_FIELD(p, memory); + CLEAR_AFTER_FIELD(p, capabilities); return ops->vidioc_reqbufs(file, fh, p); } @@ -1918,7 +1920,7 @@ static int v4l_create_bufs(const struct v4l2_ioctl_ops *ops, if (ret) return ret; - CLEAR_AFTER_FIELD(create, format); + CLEAR_AFTER_FIELD(create, capabilities); v4l_sanitize_format(&create->format); @@ -2109,9 +2111,9 @@ static int v4l_g_ext_ctrls(const struct v4l2_ioctl_ops *ops, p->error_idx = p->count; if (vfh && vfh->ctrl_handler) - return v4l2_g_ext_ctrls(vfh->ctrl_handler, p); + return v4l2_g_ext_ctrls(vfh->ctrl_handler, vfd->v4l2_dev->mdev, p); if (vfd->ctrl_handler) - return v4l2_g_ext_ctrls(vfd->ctrl_handler, p); + return v4l2_g_ext_ctrls(vfd->ctrl_handler, vfd->v4l2_dev->mdev, p); if (ops->vidioc_g_ext_ctrls == NULL) return -ENOTTY; return check_ext_ctrls(p, 0) ? ops->vidioc_g_ext_ctrls(file, fh, p) : @@ -2128,9 +2130,9 @@ static int v4l_s_ext_ctrls(const struct v4l2_ioctl_ops *ops, p->error_idx = p->count; if (vfh && vfh->ctrl_handler) - return v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p); + return v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, vfd->v4l2_dev->mdev, p); if (vfd->ctrl_handler) - return v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p); + return v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, vfd->v4l2_dev->mdev, p); if (ops->vidioc_s_ext_ctrls == NULL) return -ENOTTY; return check_ext_ctrls(p, 0) ? ops->vidioc_s_ext_ctrls(file, fh, p) : @@ -2147,9 +2149,9 @@ static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops, p->error_idx = p->count; if (vfh && vfh->ctrl_handler) - return v4l2_try_ext_ctrls(vfh->ctrl_handler, p); + return v4l2_try_ext_ctrls(vfh->ctrl_handler, vfd->v4l2_dev->mdev, p); if (vfd->ctrl_handler) - return v4l2_try_ext_ctrls(vfd->ctrl_handler, p); + return v4l2_try_ext_ctrls(vfd->ctrl_handler, vfd->v4l2_dev->mdev, p); if (ops->vidioc_try_ext_ctrls == NULL) return -ENOTTY; return check_ext_ctrls(p, 0) ? ops->vidioc_try_ext_ctrls(file, fh, p) : @@ -2780,6 +2782,7 @@ static long __video_do_ioctl(struct file *file, unsigned int cmd, void *arg) { struct video_device *vfd = video_devdata(file); + struct mutex *req_queue_lock = NULL; struct mutex *lock; /* ioctl serialization mutex */ const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; bool write_only = false; @@ -2799,10 +2802,27 @@ static long __video_do_ioctl(struct file *file, if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) vfh = file->private_data; + /* + * We need to serialize streamon/off with queueing new requests. + * These ioctls may trigger the cancellation of a streaming + * operation, and that should not be mixed with queueing a new + * request at the same time. + */ + if (v4l2_device_supports_requests(vfd->v4l2_dev) && + (cmd == VIDIOC_STREAMON || cmd == VIDIOC_STREAMOFF)) { + req_queue_lock = &vfd->v4l2_dev->mdev->req_queue_mutex; + + if (mutex_lock_interruptible(req_queue_lock)) + return -ERESTARTSYS; + } + lock = v4l2_ioctl_get_lock(vfd, vfh, cmd, arg); - if (lock && mutex_lock_interruptible(lock)) + if (lock && mutex_lock_interruptible(lock)) { + if (req_queue_lock) + mutex_unlock(req_queue_lock); return -ERESTARTSYS; + } if (!video_is_registered(vfd)) { ret = -ENODEV; @@ -2861,6 +2881,8 @@ done: unlock: if (lock) mutex_unlock(lock); + if (req_queue_lock) + mutex_unlock(req_queue_lock); return ret; } |