}
/* -----------------------------------------------------------------------------
+ * Controls
+ */
+
+static int wpf_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct vsp1_rwpf *wpf =
+ container_of(ctrl->handler, struct vsp1_rwpf, ctrls);
+ u32 value;
+
+ if (!vsp1_entity_is_streaming(&wpf->entity))
+ return 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_ALPHA_COMPONENT:
+ value = vsp1_wpf_read(wpf, VI6_WPF_OUTFMT);
+ value &= ~VI6_WPF_OUTFMT_PDV_MASK;
+ value |= ctrl->val << VI6_WPF_OUTFMT_PDV_SHIFT;
+ vsp1_wpf_write(wpf, VI6_WPF_OUTFMT, value);
+ break;
+ }
+
+ return 0;
+}
+
+static const struct v4l2_ctrl_ops wpf_ctrl_ops = {
+ .s_ctrl = wpf_s_ctrl,
+};
+
+/* -----------------------------------------------------------------------------
* V4L2 Subdevice Core Operations
*/
static int wpf_s_stream(struct v4l2_subdev *subdev, int enable)
{
+ struct vsp1_pipeline *pipe = to_vsp1_pipeline(&subdev->entity);
struct vsp1_rwpf *wpf = to_rwpf(subdev);
- struct vsp1_pipeline *pipe =
- to_vsp1_pipeline(&wpf->entity.subdev.entity);
struct vsp1_device *vsp1 = wpf->entity.vsp1;
const struct v4l2_rect *crop = &wpf->crop;
unsigned int i;
u32 srcrpf = 0;
u32 outfmt = 0;
+ int ret;
+
+ ret = vsp1_entity_set_streaming(&wpf->entity, enable);
+ if (ret < 0)
+ return ret;
if (!enable) {
vsp1_write(vsp1, VI6_WPF_IRQ_ENB(wpf->entity.index), 0);
+ vsp1_wpf_write(wpf, VI6_WPF_SRCRPF, 0);
return 0;
}
outfmt = fmtinfo->hwfmt << VI6_WPF_OUTFMT_WRFMT_SHIFT;
+ if (fmtinfo->alpha)
+ outfmt |= VI6_WPF_OUTFMT_PXA;
if (fmtinfo->swap_yc)
outfmt |= VI6_WPF_OUTFMT_SPYCS;
if (fmtinfo->swap_uv)
wpf->entity.formats[RWPF_PAD_SOURCE].code)
outfmt |= VI6_WPF_OUTFMT_CSC;
+ /* Take the control handler lock to ensure that the PDV value won't be
+ * changed behind our back by a set control operation.
+ */
+ mutex_lock(wpf->ctrls.lock);
+ outfmt |= vsp1_wpf_read(wpf, VI6_WPF_OUTFMT) & VI6_WPF_OUTFMT_PDV_MASK;
vsp1_wpf_write(wpf, VI6_WPF_OUTFMT, outfmt);
+ mutex_unlock(wpf->ctrls.lock);
vsp1_write(vsp1, VI6_DPR_WPF_FPORCH(wpf->entity.index),
VI6_DPR_WPF_FPORCH_FP_WPFN);
vsp1_entity_init_formats(subdev, NULL);
+ /* Initialize the control handler. */
+ v4l2_ctrl_handler_init(&wpf->ctrls, 1);
+ v4l2_ctrl_new_std(&wpf->ctrls, &wpf_ctrl_ops, V4L2_CID_ALPHA_COMPONENT,
+ 0, 255, 1, 255);
+
+ wpf->entity.subdev.ctrl_handler = &wpf->ctrls;
+
+ if (wpf->ctrls.error) {
+ dev_err(vsp1->dev, "wpf%u: failed to initialize controls\n",
+ index);
+ ret = wpf->ctrls.error;
+ goto error;
+ }
+
/* Initialize the video device. */
video = &wpf->video;