3  * Samsung S5P/EXYNOS4 SoC series FIMC (video postprocessor) driver
27 #include "fimc-core.h"
28 #include "fimc-reg.h"
61 	struct fimc_dev *fimc = ctx->fimc_dev;  in fimc_m2m_shutdown()  local
63 	if (!fimc_m2m_pending(fimc))  in fimc_m2m_shutdown()
68 	wait_event_timeout(fimc->irq_queue,  in fimc_m2m_shutdown()
94 	struct fimc_dev *fimc;  in fimc_device_run()  local
101 	fimc = ctx->fimc_dev;  in fimc_device_run()
102 	spin_lock_irqsave(&fimc->slock, flags);  in fimc_device_run()
104 	set_bit(ST_M2M_PEND, &fimc->state);  in fimc_device_run()
130 	if (fimc->m2m.ctx != ctx) {  in fimc_device_run()
132 		fimc->m2m.ctx = ctx;  in fimc_device_run()
148 		if (fimc->drv_data->alpha_color)  in fimc_device_run()
152 	fimc_hw_set_input_addr(fimc, &sf->addr);  in fimc_device_run()
153 	fimc_hw_set_output_addr(fimc, &df->addr, -1);  in fimc_device_run()
157 	fimc_hw_activate_input_dma(fimc, true);  in fimc_device_run()
160 	spin_unlock_irqrestore(&fimc->slock, flags);  in fimc_device_run()
231 	struct fimc_dev *fimc = video_drvdata(file);  in fimc_m2m_querycap()  local
233 	__fimc_vidioc_querycap(&fimc->pdev->dev, cap);  in fimc_m2m_querycap()
266 	struct fimc_dev *fimc = ctx->fimc_dev;  in fimc_try_fmt_mplane()  local
267 	const struct fimc_variant *variant = fimc->variant;  in fimc_try_fmt_mplane()
343 	struct fimc_dev *fimc = ctx->fimc_dev;  in fimc_m2m_s_fmt_mplane()  local
356 		v4l2_err(&fimc->m2m.vfd, "queue (%d) busy\n", f->type);  in fimc_m2m_s_fmt_mplane()
431 	struct fimc_dev *fimc = ctx->fimc_dev;  in fimc_m2m_try_selection()  local
437 		v4l2_err(&fimc->m2m.vfd,  in fimc_m2m_try_selection()
454 		fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize;  in fimc_m2m_try_selection()
457 	if (fimc->variant->min_vsize_align == 1)  in fimc_m2m_try_selection()
460 		halign = ffs(fimc->variant->min_vsize_align) - 1;  in fimc_m2m_try_selection()
477 	s->r.top  = round_down(s->r.top, fimc->variant->hor_offs_align);  in fimc_m2m_try_selection()
490 	struct fimc_dev *fimc = ctx->fimc_dev;  in fimc_m2m_s_selection()  local
512 		v4l2_err(&fimc->m2m.vfd, "Out of scaler range\n");  in fimc_m2m_s_selection()
606 	struct fimc_dev *fimc = video_drvdata(file);  in fimc_m2m_open()  local
610 	pr_debug("pid: %d, state: %#lx\n", task_pid_nr(current), fimc->state);  in fimc_m2m_open()
612 	if (mutex_lock_interruptible(&fimc->lock))  in fimc_m2m_open()
616 	 * capture video node that belong to same FIMC IP instance.  in fimc_m2m_open()
618 	if (test_bit(ST_CAPT_BUSY, &fimc->state))  in fimc_m2m_open()
626 	v4l2_fh_init(&ctx->fh, &fimc->m2m.vfd);  in fimc_m2m_open()
627 	ctx->fimc_dev = fimc;  in fimc_m2m_open()
649 	ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(fimc->m2m.m2m_dev, ctx, queue_init);  in fimc_m2m_open()
655 	if (fimc->m2m.refcnt++ == 0)  in fimc_m2m_open()
656 		set_bit(ST_M2M_RUN, &fimc->state);  in fimc_m2m_open()
662 	mutex_unlock(&fimc->lock);  in fimc_m2m_open()
674 	mutex_unlock(&fimc->lock);  in fimc_m2m_open()
681 	struct fimc_dev *fimc = ctx->fimc_dev;  in fimc_m2m_release()  local
684 		task_pid_nr(current), fimc->state, fimc->m2m.refcnt);  in fimc_m2m_release()
686 	mutex_lock(&fimc->lock);  in fimc_m2m_release()
693 	if (--fimc->m2m.refcnt <= 0)  in fimc_m2m_release()
694 		clear_bit(ST_M2M_RUN, &fimc->state);  in fimc_m2m_release()
697 	mutex_unlock(&fimc->lock);  in fimc_m2m_release()
715 int fimc_register_m2m_device(struct fimc_dev *fimc,  in fimc_register_m2m_device()  argument
718 	struct video_device *vfd = &fimc->m2m.vfd;  in fimc_register_m2m_device()
721 	fimc->v4l2_dev = v4l2_dev;  in fimc_register_m2m_device()
729 	vfd->lock = &fimc->lock;  in fimc_register_m2m_device()
734 	snprintf(vfd->name, sizeof(vfd->name), "fimc.%d.m2m", fimc->id);  in fimc_register_m2m_device()
735 	video_set_drvdata(vfd, fimc);  in fimc_register_m2m_device()
737 	fimc->m2m.m2m_dev = v4l2_m2m_init(&m2m_ops);  in fimc_register_m2m_device()
738 	if (IS_ERR(fimc->m2m.m2m_dev)) {  in fimc_register_m2m_device()
740 		return PTR_ERR(fimc->m2m.m2m_dev);  in fimc_register_m2m_device()
758 	v4l2_m2m_release(fimc->m2m.m2m_dev);  in fimc_register_m2m_device()
762 void fimc_unregister_m2m_device(struct fimc_dev *fimc)  in fimc_unregister_m2m_device()  argument
764 	if (!fimc)  in fimc_unregister_m2m_device()
767 	if (fimc->m2m.m2m_dev)  in fimc_unregister_m2m_device()
768 		v4l2_m2m_release(fimc->m2m.m2m_dev);  in fimc_unregister_m2m_device()
770 	if (video_is_registered(&fimc->m2m.vfd)) {  in fimc_unregister_m2m_device()
771 		video_unregister_device(&fimc->m2m.vfd);  in fimc_unregister_m2m_device()
772 		media_entity_cleanup(&fimc->m2m.vfd.entity);  in fimc_unregister_m2m_device()