C++ (Cpp) fimc_prepare_addr Examples

Example #1

File: fimc-m2m.c Project: 168519/linux

static void fimc_device_run(void *priv)
{
	struct vb2_buffer *src_vb, *dst_vb;
	struct fimc_ctx *ctx = priv;
	struct fimc_frame *sf, *df;
	struct fimc_dev *fimc;
	unsigned long flags;
	int ret;

	if (WARN(!ctx, "Null context\n"))
		return;

	fimc = ctx->fimc_dev;
	spin_lock_irqsave(&fimc->slock, flags);

	set_bit(ST_M2M_PEND, &fimc->state);
	sf = &ctx->s_frame;
	df = &ctx->d_frame;

	if (ctx->state & FIMC_PARAMS) {
		/* Prepare the DMA offsets for scaler */
		fimc_prepare_dma_offset(ctx, sf);
		fimc_prepare_dma_offset(ctx, df);
	}

	src_vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
	ret = fimc_prepare_addr(ctx, src_vb, sf, &sf->paddr);
	if (ret)
		goto dma_unlock;

	dst_vb = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
	ret = fimc_prepare_addr(ctx, dst_vb, df, &df->paddr);
	if (ret)
		goto dma_unlock;

	dst_vb->v4l2_buf.timestamp = src_vb->v4l2_buf.timestamp;
	dst_vb->v4l2_buf.flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
	dst_vb->v4l2_buf.flags |=
		src_vb->v4l2_buf.flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK;

	/* Reconfigure hardware if the context has changed. */
	if (fimc->m2m.ctx != ctx) {
		ctx->state |= FIMC_PARAMS;
		fimc->m2m.ctx = ctx;
	}

	if (ctx->state & FIMC_PARAMS) {
		fimc_set_yuv_order(ctx);
		fimc_hw_set_input_path(ctx);
		fimc_hw_set_in_dma(ctx);
		ret = fimc_set_scaler_info(ctx);
		if (ret)
			goto dma_unlock;
		fimc_hw_set_prescaler(ctx);
		fimc_hw_set_mainscaler(ctx);
		fimc_hw_set_target_format(ctx);
		fimc_hw_set_rotation(ctx);
		fimc_hw_set_effect(ctx);
		fimc_hw_set_out_dma(ctx);
		if (fimc->drv_data->alpha_color)
			fimc_hw_set_rgb_alpha(ctx);
		fimc_hw_set_output_path(ctx);
	}
	fimc_hw_set_input_addr(fimc, &sf->paddr);
	fimc_hw_set_output_addr(fimc, &df->paddr, -1);

	fimc_activate_capture(ctx);
	ctx->state &= (FIMC_CTX_M2M | FIMC_CTX_CAP);
	fimc_hw_activate_input_dma(fimc, true);

dma_unlock:
	spin_unlock_irqrestore(&fimc->slock, flags);
}

Example #2

File: fimc-m2m.c Project: ARMWorks/FA_2451_Linux_Kernel

static void fimc_device_run(void *priv)
{
	struct vb2_buffer *vb = NULL;
	struct fimc_ctx *ctx = priv;
	struct fimc_frame *sf, *df;
	struct fimc_dev *fimc;
	unsigned long flags;
	u32 ret;

	if (WARN(!ctx, "Null context\n"))
		return;

	fimc = ctx->fimc_dev;
	spin_lock_irqsave(&fimc->slock, flags);

	set_bit(ST_M2M_PEND, &fimc->state);
	sf = &ctx->s_frame;
	df = &ctx->d_frame;

	if (ctx->state & FIMC_PARAMS) {
		/* Prepare the DMA offsets for scaler */
		fimc_prepare_dma_offset(ctx, sf);
		fimc_prepare_dma_offset(ctx, df);
	}

	vb = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
	ret = fimc_prepare_addr(ctx, vb, sf, &sf->paddr);
	if (ret)
		goto dma_unlock;

	vb = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
	ret = fimc_prepare_addr(ctx, vb, df, &df->paddr);
	if (ret)
		goto dma_unlock;

	/* Reconfigure hardware if the context has changed. */
	if (fimc->m2m.ctx != ctx) {
		ctx->state |= FIMC_PARAMS;
		fimc->m2m.ctx = ctx;
	}

	if (ctx->state & FIMC_PARAMS) {
		fimc_set_yuv_order(ctx);
		fimc_hw_set_input_path(ctx);
		fimc_hw_set_in_dma(ctx);
		ret = fimc_set_scaler_info(ctx);
		if (ret)
			goto dma_unlock;
		fimc_hw_set_prescaler(ctx);
		fimc_hw_set_mainscaler(ctx);
		fimc_hw_set_target_format(ctx);
		fimc_hw_set_rotation(ctx);
		fimc_hw_set_effect(ctx);
		fimc_hw_set_out_dma(ctx);
		if (fimc->variant->has_alpha)
			fimc_hw_set_rgb_alpha(ctx);
		fimc_hw_set_output_path(ctx);
	}
	fimc_hw_set_input_addr(fimc, &sf->paddr);
	fimc_hw_set_output_addr(fimc, &df->paddr, -1);

	fimc_activate_capture(ctx);
	ctx->state &= (FIMC_CTX_M2M | FIMC_CTX_CAP |
		       FIMC_SRC_FMT | FIMC_DST_FMT);
	fimc_hw_activate_input_dma(fimc, true);

dma_unlock:
	spin_unlock_irqrestore(&fimc->slock, flags);
}