nxp/imx8-isi/imx8-isi-m2m.c

50 	struct mxc_isi_m2m *m2m;
52 	/* Protects the m2m vb2 queues */
96 	struct mxc_isi_m2m *m2m = &pipe->isi->m2m;
100 	ctx = v4l2_m2m_get_curr_priv(m2m->m2m_dev);
102 		dev_err(m2m->isi->dev,
118 	v4l2_m2m_job_finish(m2m->m2m_dev, ctx->fh.m2m_ctx);
124 	struct mxc_isi_m2m *m2m = ctx->m2m;
128 	mxc_isi_channel_disable(m2m->pipe);
130 	mutex_lock(&m2m->lock);
133 	if (m2m->last_ctx != ctx) {
147 		mxc_isi_channel_config(m2m->pipe, MXC_ISI_INPUT_MEM,
151 		mxc_isi_channel_set_input_format(m2m->pipe,
154 		mxc_isi_channel_set_output_format(m2m->pipe,
158 		m2m->last_ctx = ctx;
161 	mutex_unlock(&m2m->lock);
164 	mxc_isi_channel_set_alpha(m2m->pipe, ctx->ctrls.alpha);
165 	mxc_isi_channel_set_flip(m2m->pipe, ctx->ctrls.hflip, ctx->ctrls.vflip);
174 	mxc_isi_channel_set_inbuf(m2m->pipe, src_buf->dma_addrs[0]);
175 	mxc_isi_channel_set_outbuf(m2m->pipe, dst_buf->dma_addrs, MXC_ISI_BUF1);
176 	mxc_isi_channel_set_outbuf(m2m->pipe, dst_buf->dma_addrs, MXC_ISI_BUF2);
178 	mxc_isi_channel_enable(m2m->pipe);
180 	mxc_isi_channel_m2m_start(m2m->pipe);
226 	return mxc_isi_video_buffer_prepare(ctx->m2m->isi, vb2, qdata->info,
282 	struct mxc_isi_m2m *m2m = ctx->m2m;
293 	src_vq->dev = m2m->isi->dev;
307 	dst_vq->dev = m2m->isi->dev;
422 	return mxc_isi_format_try(ctx->m2m->pipe, pix, type);
493 	struct mxc_isi_m2m *m2m = ctx->m2m;
498 	mutex_lock(&m2m->lock);
500 	if (m2m->usage_count == INT_MAX) {
513 	if (m2m->usage_count == 0) {
514 		ret = mxc_isi_channel_acquire(m2m->pipe,
520 		mxc_isi_channel_get(m2m->pipe);
523 	m2m->usage_count++;
530 		ret = mxc_isi_channel_chain(m2m->pipe, bypass);
534 		m2m->chained_count++;
542 	mutex_unlock(&m2m->lock);
546 		mutex_lock(&m2m->lock);
553 	if (ctx->chained && --m2m->chained_count == 0)
554 		mxc_isi_channel_unchain(m2m->pipe);
558 	if (--m2m->usage_count == 0) {
559 		mxc_isi_channel_put(m2m->pipe);
560 		mxc_isi_channel_release(m2m->pipe);
564 	mutex_unlock(&m2m->lock);
572 	struct mxc_isi_m2m *m2m = ctx->m2m;
576 	mutex_lock(&m2m->lock);
582 	if (m2m->last_ctx == ctx)
583 		m2m->last_ctx = NULL;
586 	if (ctx->chained && --m2m->chained_count == 0)
587 		mxc_isi_channel_unchain(m2m->pipe);
591 	if (--m2m->usage_count == 0) {
592 		mxc_isi_channel_disable(m2m->pipe);
593 		mxc_isi_channel_put(m2m->pipe);
594 		mxc_isi_channel_release(m2m->pipe);
597 	WARN_ON(m2m->usage_count < 0);
599 	mutex_unlock(&m2m->lock);
643 	qdata->info = mxc_isi_format_try(ctx->m2m->pipe, &qdata->format, type);
649 	struct mxc_isi_m2m *m2m = video_drvdata(file);
657 	ctx->m2m = m2m;
663 	ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(m2m->m2m_dev, ctx,
678 	ret = pm_runtime_resume_and_get(m2m->isi->dev);
699 	struct mxc_isi_m2m *m2m = video_drvdata(file);
711 	pm_runtime_put(m2m->isi->dev);
731 	struct mxc_isi_m2m *m2m = &isi->m2m;
732 	struct video_device *vdev = &m2m->vdev;
736 	m2m->isi = isi;
737 	m2m->pipe = &isi->pipes[0];
739 	mutex_init(&m2m->lock);
742 	snprintf(vdev->name, sizeof(vdev->name), "mxc_isi.m2m");
752 	video_set_drvdata(vdev, m2m);
755 	m2m->m2m_dev = v4l2_m2m_init(&mxc_isi_m2m_ops);
756 	if (IS_ERR(m2m->m2m_dev)) {
757 		dev_err(isi->dev, "failed to initialize m2m device\n");
758 		ret = PTR_ERR(m2m->m2m_dev);
765 		dev_err(isi->dev, "failed to register m2m device\n");
785 	m2m->pad.flags = MEDIA_PAD_FL_SOURCE;
788 	ret = media_entity_pads_init(&vdev->entity, 1, &m2m->pad);
797 				    &m2m->isi->crossbar.sd.entity,
798 				    m2m->isi->crossbar.num_sinks - 1,
804 	m2m->intf = media_devnode_create(v4l2_dev->mdev, MEDIA_INTF_T_V4L_VIDEO,
806 	if (!m2m->intf) {
811 	link = media_create_intf_link(&vdev->entity, &m2m->intf->intf,
819 	link = media_create_intf_link(&m2m->pipe->video.vdev.entity,
820 				      &m2m->intf->intf,
831 	media_devnode_remove(m2m->intf);
839 	v4l2_m2m_release(m2m->m2m_dev);
841 	mutex_destroy(&m2m->lock);
847 	struct mxc_isi_m2m *m2m = &isi->m2m;
848 	struct video_device *vdev = &m2m->vdev;
852 	v4l2_m2m_release(m2m->m2m_dev);
853 	media_devnode_remove(m2m->intf);
855 	mutex_destroy(&m2m->lock);