diff options
Diffstat (limited to 'drivers/media/video/vivi.c')
| -rw-r--r-- | drivers/media/video/vivi.c | 194 |
1 files changed, 28 insertions, 166 deletions
diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c index 08c10240e70..1e8c4f3ab60 100644 --- a/drivers/media/video/vivi.c +++ b/drivers/media/video/vivi.c @@ -188,6 +188,7 @@ struct vivi_dev { struct list_head vivi_devlist; struct v4l2_device v4l2_dev; struct v4l2_ctrl_handler ctrl_handler; + struct video_device vdev; /* controls */ struct v4l2_ctrl *brightness; @@ -213,9 +214,6 @@ struct vivi_dev { spinlock_t slock; struct mutex mutex; - /* various device info */ - struct video_device *vfd; - struct vivi_dmaqueue vidq; /* Several counters */ @@ -769,7 +767,13 @@ static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, struct vivi_dev *dev = vb2_get_drv_priv(vq); unsigned long size; - size = dev->width * dev->height * dev->pixelsize; + if (fmt) + size = fmt->fmt.pix.sizeimage; + else + size = dev->width * dev->height * dev->pixelsize; + + if (size == 0) + return -EINVAL; if (0 == *nbuffers) *nbuffers = 32; @@ -792,27 +796,6 @@ static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, return 0; } -static int buffer_init(struct vb2_buffer *vb) -{ - struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue); - - BUG_ON(NULL == dev->fmt); - - /* - * This callback is called once per buffer, after its allocation. - * - * Vivi does not allow changing format during streaming, but it is - * possible to do so when streaming is paused (i.e. in streamoff state). - * Buffers however are not freed when going into streamoff and so - * buffer size verification has to be done in buffer_prepare, on each - * qbuf. - * It would be best to move verification code here to buf_init and - * s_fmt though. - */ - - return 0; -} - static int buffer_prepare(struct vb2_buffer *vb) { struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue); @@ -850,20 +833,6 @@ static int buffer_prepare(struct vb2_buffer *vb) return 0; } -static int buffer_finish(struct vb2_buffer *vb) -{ - struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue); - dprintk(dev, 1, "%s\n", __func__); - return 0; -} - -static void buffer_cleanup(struct vb2_buffer *vb) -{ - struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue); - dprintk(dev, 1, "%s\n", __func__); - -} - static void buffer_queue(struct vb2_buffer *vb) { struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue); @@ -909,10 +878,7 @@ static void vivi_unlock(struct vb2_queue *vq) static struct vb2_ops vivi_video_qops = { .queue_setup = queue_setup, - .buf_init = buffer_init, .buf_prepare = buffer_prepare, - .buf_finish = buffer_finish, - .buf_cleanup = buffer_cleanup, .buf_queue = buffer_queue, .start_streaming = start_streaming, .stop_streaming = stop_streaming, @@ -1021,7 +987,7 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, if (ret < 0) return ret; - if (vb2_is_streaming(q)) { + if (vb2_is_busy(q)) { dprintk(dev, 1, "%s device busy\n", __func__); return -EBUSY; } @@ -1035,48 +1001,6 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, return 0; } -static int vidioc_reqbufs(struct file *file, void *priv, - struct v4l2_requestbuffers *p) -{ - struct vivi_dev *dev = video_drvdata(file); - return vb2_reqbufs(&dev->vb_vidq, p); -} - -static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p) -{ - struct vivi_dev *dev = video_drvdata(file); - return vb2_querybuf(&dev->vb_vidq, p); -} - -static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p) -{ - struct vivi_dev *dev = video_drvdata(file); - return vb2_qbuf(&dev->vb_vidq, p); -} - -static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p) -{ - struct vivi_dev *dev = video_drvdata(file); - return vb2_dqbuf(&dev->vb_vidq, p, file->f_flags & O_NONBLOCK); -} - -static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) -{ - struct vivi_dev *dev = video_drvdata(file); - return vb2_streamon(&dev->vb_vidq, i); -} - -static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) -{ - struct vivi_dev *dev = video_drvdata(file); - return vb2_streamoff(&dev->vb_vidq, i); -} - -static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *i) -{ - return 0; -} - /* only one input in this sample driver */ static int vidioc_enum_input(struct file *file, void *priv, struct v4l2_input *inp) @@ -1085,7 +1009,6 @@ static int vidioc_enum_input(struct file *file, void *priv, return -EINVAL; inp->type = V4L2_INPUT_TYPE_CAMERA; - inp->std = V4L2_STD_525_60; sprintf(inp->name, "Camera %u", inp->index); return 0; } @@ -1145,58 +1068,6 @@ static int vivi_s_ctrl(struct v4l2_ctrl *ctrl) File operations for the device ------------------------------------------------------------------*/ -static ssize_t -vivi_read(struct file *file, char __user *data, size_t count, loff_t *ppos) -{ - struct vivi_dev *dev = video_drvdata(file); - int err; - - dprintk(dev, 1, "read called\n"); - mutex_lock(&dev->mutex); - err = vb2_read(&dev->vb_vidq, data, count, ppos, - file->f_flags & O_NONBLOCK); - mutex_unlock(&dev->mutex); - return err; -} - -static unsigned int -vivi_poll(struct file *file, struct poll_table_struct *wait) -{ - struct vivi_dev *dev = video_drvdata(file); - struct vb2_queue *q = &dev->vb_vidq; - - dprintk(dev, 1, "%s\n", __func__); - return vb2_poll(q, file, wait); -} - -static int vivi_close(struct file *file) -{ - struct video_device *vdev = video_devdata(file); - struct vivi_dev *dev = video_drvdata(file); - - dprintk(dev, 1, "close called (dev=%s), file %p\n", - video_device_node_name(vdev), file); - - if (v4l2_fh_is_singular_file(file)) - vb2_queue_release(&dev->vb_vidq); - return v4l2_fh_release(file); -} - -static int vivi_mmap(struct file *file, struct vm_area_struct *vma) -{ - struct vivi_dev *dev = video_drvdata(file); - int ret; - - dprintk(dev, 1, "mmap called, vma=0x%08lx\n", (unsigned long)vma); - - ret = vb2_mmap(&dev->vb_vidq, vma); - dprintk(dev, 1, "vma start=0x%08lx, size=%ld, ret=%d\n", - (unsigned long)vma->vm_start, - (unsigned long)vma->vm_end - (unsigned long)vma->vm_start, - ret); - return ret; -} - static const struct v4l2_ctrl_ops vivi_ctrl_ops = { .g_volatile_ctrl = vivi_g_volatile_ctrl, .s_ctrl = vivi_s_ctrl, @@ -1301,11 +1172,11 @@ static const struct v4l2_ctrl_config vivi_ctrl_int_menu = { static const struct v4l2_file_operations vivi_fops = { .owner = THIS_MODULE, .open = v4l2_fh_open, - .release = vivi_close, - .read = vivi_read, - .poll = vivi_poll, + .release = vb2_fop_release, + .read = vb2_fop_read, + .poll = vb2_fop_poll, .unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */ - .mmap = vivi_mmap, + .mmap = vb2_fop_mmap, }; static const struct v4l2_ioctl_ops vivi_ioctl_ops = { @@ -1314,16 +1185,17 @@ static const struct v4l2_ioctl_ops vivi_ioctl_ops = { .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, - .vidioc_reqbufs = vidioc_reqbufs, - .vidioc_querybuf = vidioc_querybuf, - .vidioc_qbuf = vidioc_qbuf, - .vidioc_dqbuf = vidioc_dqbuf, - .vidioc_s_std = vidioc_s_std, + .vidioc_reqbufs = vb2_ioctl_reqbufs, + .vidioc_create_bufs = vb2_ioctl_create_bufs, + .vidioc_prepare_buf = vb2_ioctl_prepare_buf, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, .vidioc_enum_input = vidioc_enum_input, .vidioc_g_input = vidioc_g_input, .vidioc_s_input = vidioc_s_input, - .vidioc_streamon = vidioc_streamon, - .vidioc_streamoff = vidioc_streamoff, + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, .vidioc_log_status = v4l2_ctrl_log_status, .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, .vidioc_unsubscribe_event = v4l2_event_unsubscribe, @@ -1333,10 +1205,7 @@ static struct video_device vivi_template = { .name = "vivi", .fops = &vivi_fops, .ioctl_ops = &vivi_ioctl_ops, - .release = video_device_release, - - .tvnorms = V4L2_STD_525_60, - .current_norm = V4L2_STD_NTSC_M, + .release = video_device_release_empty, }; /* ----------------------------------------------------------------- @@ -1354,8 +1223,8 @@ static int vivi_release(void) dev = list_entry(list, struct vivi_dev, vivi_devlist); v4l2_info(&dev->v4l2_dev, "unregistering %s\n", - video_device_node_name(dev->vfd)); - video_unregister_device(dev->vfd); + video_device_node_name(&dev->vdev)); + video_unregister_device(&dev->vdev); v4l2_device_unregister(&dev->v4l2_dev); v4l2_ctrl_handler_free(&dev->ctrl_handler); kfree(dev); @@ -1440,14 +1309,11 @@ static int __init vivi_create_instance(int inst) INIT_LIST_HEAD(&dev->vidq.active); init_waitqueue_head(&dev->vidq.wq); - ret = -ENOMEM; - vfd = video_device_alloc(); - if (!vfd) - goto unreg_dev; - + vfd = &dev->vdev; *vfd = vivi_template; vfd->debug = debug; vfd->v4l2_dev = &dev->v4l2_dev; + vfd->queue = q; set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags); /* @@ -1455,12 +1321,11 @@ static int __init vivi_create_instance(int inst) * all fops and v4l2 ioctls. */ vfd->lock = &dev->mutex; + video_set_drvdata(vfd, dev); ret = video_register_device(vfd, VFL_TYPE_GRABBER, video_nr); if (ret < 0) - goto rel_vdev; - - video_set_drvdata(vfd, dev); + goto unreg_dev; /* Now that everything is fine, let's add it to device list */ list_add_tail(&dev->vivi_devlist, &vivi_devlist); @@ -1468,13 +1333,10 @@ static int __init vivi_create_instance(int inst) if (video_nr != -1) video_nr++; - dev->vfd = vfd; v4l2_info(&dev->v4l2_dev, "V4L2 device registered as %s\n", video_device_node_name(vfd)); return 0; -rel_vdev: - video_device_release(vfd); unreg_dev: v4l2_ctrl_handler_free(hdl); v4l2_device_unregister(&dev->v4l2_dev); |