int solo_v4l2_init(struct solo6010_dev *solo_dev)
{
int ret;
int i;
init_waitqueue_head(&solo_dev->disp_thread_wait);
solo_dev->vfd = video_device_alloc();
if (!solo_dev->vfd)
return -ENOMEM;
*solo_dev->vfd = solo_v4l2_template;
solo_dev->vfd->parent = &solo_dev->pdev->dev;
ret = video_register_device(solo_dev->vfd, VFL_TYPE_GRABBER, video_nr);
if (ret < 0) {
video_device_release(solo_dev->vfd);
solo_dev->vfd = NULL;
return ret;
}
video_set_drvdata(solo_dev->vfd, solo_dev);
snprintf(solo_dev->vfd->name, sizeof(solo_dev->vfd->name), "%s (%i)",
SOLO6010_NAME, solo_dev->vfd->num);
if (video_nr != -1)
video_nr++;
dev_info(&solo_dev->pdev->dev, "Display as /dev/video%d with "
"%d inputs (%d extended)\n", solo_dev->vfd->num,
solo_dev->nr_chans, solo_dev->nr_ext);
/* Cycle all the channels and clear */
for (i = 0; i < solo_dev->nr_chans; i++) {
solo_v4l2_set_ch(solo_dev, i);
while (erase_off(solo_dev))
;// Do nothing
}
/* Set the default display channel */
solo_v4l2_set_ch(solo_dev, 0);
while (erase_off(solo_dev))
;// Do nothing
solo6010_irq_on(solo_dev, SOLO_IRQ_VIDEO_IN);
return 0;
}
static int solo_set_input(struct file *file, void *priv, unsigned int index)
{
struct solo_filehandle *fh = priv;
int ret = solo_v4l2_set_ch(fh->solo_dev, index);
if (!ret) {
while (erase_off(fh->solo_dev))
/* Do nothing */;
}
return ret;
}
static int solo_set_input(struct file *file, void *priv, unsigned int index)
{
struct solo_dev *solo_dev = video_drvdata(file);
int ret = solo_v4l2_set_ch(solo_dev, index);
if (!ret) {
while (erase_off(solo_dev))
/* Do nothing */;
}
return ret;
}
int solo_set_video_type(struct solo_dev *solo_dev, bool is_50hz)
{
int i;
/* Make sure all video nodes are idle */
if (vb2_is_busy(&solo_dev->vidq))
return -EBUSY;
for (i = 0; i < solo_dev->nr_chans; i++)
if (vb2_is_busy(&solo_dev->v4l2_enc[i]->vidq))
return -EBUSY;
solo_dev->video_type = is_50hz ? SOLO_VO_FMT_TYPE_PAL :
SOLO_VO_FMT_TYPE_NTSC;
/* Reconfigure for the new standard */
solo_disp_init(solo_dev);
solo_enc_init(solo_dev);
solo_tw28_init(solo_dev);
for (i = 0; i < solo_dev->nr_chans; i++)
solo_update_mode(solo_dev->v4l2_enc[i]);
return solo_v4l2_set_ch(solo_dev, solo_dev->cur_disp_ch);
}
static int solo_set_input(struct file *file, void *priv, unsigned int index)
{
struct solo_filehandle *fh = priv;
return solo_v4l2_set_ch(fh->solo_dev, index);
}
int solo_v4l2_init(struct solo_dev *solo_dev, unsigned nr)
{
int ret;
int i;
init_waitqueue_head(&solo_dev->disp_thread_wait);
spin_lock_init(&solo_dev->slock);
mutex_init(&solo_dev->lock);
INIT_LIST_HEAD(&solo_dev->vidq_active);
solo_dev->vfd = video_device_alloc();
if (!solo_dev->vfd)
return -ENOMEM;
*solo_dev->vfd = solo_v4l2_template;
solo_dev->vfd->v4l2_dev = &solo_dev->v4l2_dev;
solo_dev->vfd->queue = &solo_dev->vidq;
solo_dev->vfd->lock = &solo_dev->lock;
v4l2_ctrl_handler_init(&solo_dev->disp_hdl, 1);
v4l2_ctrl_new_custom(&solo_dev->disp_hdl, &solo_motion_trace_ctrl, NULL);
if (solo_dev->disp_hdl.error) {
ret = solo_dev->disp_hdl.error;
goto fail;
}
solo_dev->vfd->ctrl_handler = &solo_dev->disp_hdl;
video_set_drvdata(solo_dev->vfd, solo_dev);
solo_dev->vidq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
solo_dev->vidq.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
solo_dev->vidq.ops = &solo_video_qops;
solo_dev->vidq.mem_ops = &vb2_dma_contig_memops;
solo_dev->vidq.drv_priv = solo_dev;
solo_dev->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
solo_dev->vidq.gfp_flags = __GFP_DMA32;
solo_dev->vidq.buf_struct_size = sizeof(struct solo_vb2_buf);
solo_dev->vidq.lock = &solo_dev->lock;
ret = vb2_queue_init(&solo_dev->vidq);
if (ret < 0)
goto fail;
solo_dev->alloc_ctx = vb2_dma_contig_init_ctx(&solo_dev->pdev->dev);
if (IS_ERR(solo_dev->alloc_ctx)) {
dev_err(&solo_dev->pdev->dev, "Can't allocate buffer context");
return PTR_ERR(solo_dev->alloc_ctx);
}
/* Cycle all the channels and clear */
for (i = 0; i < solo_dev->nr_chans; i++) {
solo_v4l2_set_ch(solo_dev, i);
while (erase_off(solo_dev))
/* Do nothing */;
}
/* Set the default display channel */
solo_v4l2_set_ch(solo_dev, 0);
while (erase_off(solo_dev))
/* Do nothing */;
ret = video_register_device(solo_dev->vfd, VFL_TYPE_GRABBER, nr);
if (ret < 0)
goto fail;
snprintf(solo_dev->vfd->name, sizeof(solo_dev->vfd->name), "%s (%i)",
SOLO6X10_NAME, solo_dev->vfd->num);
dev_info(&solo_dev->pdev->dev, "Display as /dev/video%d with "
"%d inputs (%d extended)\n", solo_dev->vfd->num,
solo_dev->nr_chans, solo_dev->nr_ext);
return 0;
fail:
video_device_release(solo_dev->vfd);
vb2_dma_contig_cleanup_ctx(solo_dev->alloc_ctx);
v4l2_ctrl_handler_free(&solo_dev->disp_hdl);
solo_dev->vfd = NULL;
return ret;
}