30 	struct gsc_dev *gsc = ctx->gsc_dev;  in gsc_m2m_ctx_stop_req()  local
33 	curr_ctx = v4l2_m2m_get_curr_priv(gsc->m2m.m2m_dev);  in gsc_m2m_ctx_stop_req()
34 	if (!gsc_m2m_pending(gsc) || (curr_ctx != ctx))  in gsc_m2m_ctx_stop_req()
38 	ret = wait_event_timeout(gsc->irq_queue,  in gsc_m2m_ctx_stop_req()
149 	struct gsc_dev *gsc;  in gsc_m2m_device_run()  local
157 	gsc = ctx->gsc_dev;  in gsc_m2m_device_run()
158 	spin_lock_irqsave(&gsc->slock, flags);  in gsc_m2m_device_run()
160 	set_bit(ST_M2M_PEND, &gsc->state);  in gsc_m2m_device_run()
163 	if (gsc->m2m.ctx != ctx) {  in gsc_m2m_device_run()
165 				gsc->m2m.ctx, ctx);  in gsc_m2m_device_run()
167 		gsc->m2m.ctx = ctx;  in gsc_m2m_device_run()
174 		wake_up(&gsc->irq_queue);  in gsc_m2m_device_run()
184 	gsc_set_prefbuf(gsc, &ctx->s_frame);  in gsc_m2m_device_run()
185 	gsc_hw_set_input_addr(gsc, &ctx->s_frame.addr, GSC_M2M_BUF_NUM);  in gsc_m2m_device_run()
186 	gsc_hw_set_output_addr(gsc, &ctx->d_frame.addr, GSC_M2M_BUF_NUM);  in gsc_m2m_device_run()
189 		gsc_hw_set_input_buf_masking(gsc, GSC_M2M_BUF_NUM, false);  in gsc_m2m_device_run()
190 		gsc_hw_set_output_buf_masking(gsc, GSC_M2M_BUF_NUM, false);  in gsc_m2m_device_run()
191 		gsc_hw_set_frm_done_irq_mask(gsc, false);  in gsc_m2m_device_run()
192 		gsc_hw_set_gsc_irq_enable(gsc, true);  in gsc_m2m_device_run()
217 	gsc_hw_enable_control(gsc, true);  in gsc_m2m_device_run()
219 	spin_unlock_irqrestore(&gsc->slock, flags);  in gsc_m2m_device_run()
224 	spin_unlock_irqrestore(&gsc->slock, flags);  in gsc_m2m_device_run()
291 	struct gsc_dev *gsc = ctx->gsc_dev;  in gsc_m2m_querycap()  local
296 		 dev_name(&gsc->pdev->dev));  in gsc_m2m_querycap()
372 	struct gsc_dev *gsc = ctx->gsc_dev;  in gsc_m2m_reqbufs()  local
376 		gsc->variant->in_buf_cnt : gsc->variant->out_buf_cnt;  in gsc_m2m_reqbufs()
615 	struct gsc_dev *gsc = video_drvdata(file);  in gsc_m2m_open()  local
619 	pr_debug("pid: %d, state: 0x%lx", task_pid_nr(current), gsc->state);  in gsc_m2m_open()
621 	if (mutex_lock_interruptible(&gsc->lock))  in gsc_m2m_open()
630 	v4l2_fh_init(&ctx->fh, gsc->m2m.vfd);  in gsc_m2m_open()
640 	ctx->gsc_dev = gsc;  in gsc_m2m_open()
650 	ctx->m2m_ctx = v4l2_m2m_ctx_init(gsc->m2m.m2m_dev, ctx, queue_init);  in gsc_m2m_open()
657 	if (gsc->m2m.refcnt++ == 0)  in gsc_m2m_open()
658 		set_bit(ST_M2M_OPEN, &gsc->state);  in gsc_m2m_open()
662 	mutex_unlock(&gsc->lock);  in gsc_m2m_open()
672 	mutex_unlock(&gsc->lock);  in gsc_m2m_open()
679 	struct gsc_dev *gsc = ctx->gsc_dev;  in gsc_m2m_release()  local
682 		task_pid_nr(current), gsc->state, gsc->m2m.refcnt);  in gsc_m2m_release()
684 	mutex_lock(&gsc->lock);  in gsc_m2m_release()
691 	if (--gsc->m2m.refcnt <= 0)  in gsc_m2m_release()
692 		clear_bit(ST_M2M_OPEN, &gsc->state);  in gsc_m2m_release()
695 	mutex_unlock(&gsc->lock);  in gsc_m2m_release()
703 	struct gsc_dev *gsc = ctx->gsc_dev;  in gsc_m2m_poll()  local
706 	if (mutex_lock_interruptible(&gsc->lock))  in gsc_m2m_poll()
710 	mutex_unlock(&gsc->lock);  in gsc_m2m_poll()
718 	struct gsc_dev *gsc = ctx->gsc_dev;  in gsc_m2m_mmap()  local
721 	if (mutex_lock_interruptible(&gsc->lock))  in gsc_m2m_mmap()
725 	mutex_unlock(&gsc->lock);  in gsc_m2m_mmap()
744 int gsc_register_m2m_device(struct gsc_dev *gsc)  in gsc_register_m2m_device()  argument
749 	if (!gsc)  in gsc_register_m2m_device()
752 	pdev = gsc->pdev;  in gsc_register_m2m_device()
754 	gsc->vdev.fops		= &gsc_m2m_fops;  in gsc_register_m2m_device()
755 	gsc->vdev.ioctl_ops	= &gsc_m2m_ioctl_ops;  in gsc_register_m2m_device()
756 	gsc->vdev.release	= video_device_release_empty;  in gsc_register_m2m_device()
757 	gsc->vdev.lock		= &gsc->lock;  in gsc_register_m2m_device()
758 	gsc->vdev.vfl_dir	= VFL_DIR_M2M;  in gsc_register_m2m_device()
759 	gsc->vdev.v4l2_dev	= &gsc->v4l2_dev;  in gsc_register_m2m_device()
760 	gsc->vdev.device_caps	= V4L2_CAP_STREAMING |  in gsc_register_m2m_device()
762 	snprintf(gsc->vdev.name, sizeof(gsc->vdev.name), "%s.%d:m2m",  in gsc_register_m2m_device()
763 					GSC_MODULE_NAME, gsc->id);  in gsc_register_m2m_device()
765 	video_set_drvdata(&gsc->vdev, gsc);  in gsc_register_m2m_device()
767 	gsc->m2m.vfd = &gsc->vdev;  in gsc_register_m2m_device()
768 	gsc->m2m.m2m_dev = v4l2_m2m_init(&gsc_m2m_ops);  in gsc_register_m2m_device()
769 	if (IS_ERR(gsc->m2m.m2m_dev)) {  in gsc_register_m2m_device()
771 		return PTR_ERR(gsc->m2m.m2m_dev);  in gsc_register_m2m_device()
774 	ret = video_register_device(&gsc->vdev, VFL_TYPE_GRABBER, -1);  in gsc_register_m2m_device()
781 	pr_debug("gsc m2m driver registered as /dev/video%d", gsc->vdev.num);  in gsc_register_m2m_device()
785 	v4l2_m2m_release(gsc->m2m.m2m_dev);  in gsc_register_m2m_device()
790 void gsc_unregister_m2m_device(struct gsc_dev *gsc)  in gsc_unregister_m2m_device()  argument
792 	if (gsc) {  in gsc_unregister_m2m_device()
793 		v4l2_m2m_release(gsc->m2m.m2m_dev);  in gsc_unregister_m2m_device()
794 		video_unregister_device(&gsc->vdev);  in gsc_unregister_m2m_device()