C++ (Cpp) gsc_set_prefbuf Examples

Example #1

File: gsc-m2m.c Project: AlexShiLucky/linux

static void gsc_m2m_device_run(void *priv)
{
	struct gsc_ctx *ctx = priv;
	struct gsc_dev *gsc;
	unsigned long flags;
	int ret;
	bool is_set = false;

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

	gsc = ctx->gsc_dev;
	spin_lock_irqsave(&gsc->slock, flags);

	set_bit(ST_M2M_PEND, &gsc->state);

	/* Reconfigure hardware if the context has changed. */
	if (gsc->m2m.ctx != ctx) {
		pr_debug("gsc->m2m.ctx = 0x%p, current_ctx = 0x%p",
				gsc->m2m.ctx, ctx);
		ctx->state |= GSC_PARAMS;
		gsc->m2m.ctx = ctx;
	}

	is_set = ctx->state & GSC_CTX_STOP_REQ;
	if (is_set) {
		ctx->state &= ~GSC_CTX_STOP_REQ;
		ctx->state |= GSC_CTX_ABORT;
		wake_up(&gsc->irq_queue);
		goto put_device;
	}

	ret = gsc_get_bufs(ctx);
	if (ret) {
		pr_err("Wrong address");
		goto put_device;
	}

	gsc_set_prefbuf(gsc, &ctx->s_frame);
	gsc_hw_set_input_addr(gsc, &ctx->s_frame.addr, GSC_M2M_BUF_NUM);
	gsc_hw_set_output_addr(gsc, &ctx->d_frame.addr, GSC_M2M_BUF_NUM);

	if (ctx->state & GSC_PARAMS) {
		gsc_hw_set_input_buf_masking(gsc, GSC_M2M_BUF_NUM, false);
		gsc_hw_set_output_buf_masking(gsc, GSC_M2M_BUF_NUM, false);
		gsc_hw_set_frm_done_irq_mask(gsc, false);
		gsc_hw_set_gsc_irq_enable(gsc, true);

		if (gsc_set_scaler_info(ctx)) {
			pr_err("Scaler setup error");
			goto put_device;
		}

		gsc_hw_set_input_path(ctx);
		gsc_hw_set_in_size(ctx);
		gsc_hw_set_in_image_format(ctx);

		gsc_hw_set_output_path(ctx);
		gsc_hw_set_out_size(ctx);
		gsc_hw_set_out_image_format(ctx);

		gsc_hw_set_prescaler(ctx);
		gsc_hw_set_mainscaler(ctx);
		gsc_hw_set_rotation(ctx);
		gsc_hw_set_global_alpha(ctx);
	}

	/* update shadow registers */
	gsc_hw_set_sfr_update(ctx);

	ctx->state &= ~GSC_PARAMS;
	gsc_hw_enable_control(gsc, true);

	spin_unlock_irqrestore(&gsc->slock, flags);
	return;

put_device:
	ctx->state &= ~GSC_PARAMS;
	spin_unlock_irqrestore(&gsc->slock, flags);
}

Example #2

File: gsc-m2m.c Project: ArthySundaram/chromeos-kvm

static void gsc_m2m_device_run(void *priv)
{
	struct gsc_ctx *ctx = priv;
	struct gsc_dev *gsc;
	unsigned long flags;
	int ret = 0;
	bool is_set = false;

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

	gsc = ctx->gsc_dev;

	spin_lock_irqsave(&ctx->slock, flags);
	/* Reconfigure hardware if the context has changed. */
	if (gsc->m2m.ctx != ctx) {
		gsc_dbg("gsc->m2m.ctx = 0x%p, current_ctx = 0x%p",
			  gsc->m2m.ctx, ctx);
		ctx->state |= GSC_PARAMS;
		gsc->m2m.ctx = ctx;
	}

	is_set = (ctx->state & GSC_CTX_STOP_REQ) ? 1 : 0;
	ctx->state &= ~GSC_CTX_STOP_REQ;
	if (is_set) {
		wake_up(&gsc->irq_queue);
		goto put_device;
	}

	ret = gsc_get_bufs(ctx);
	if (ret) {
		gsc_err("Wrong address");
		goto put_device;
	}

	gsc_set_prefbuf(gsc, ctx->s_frame);
	gsc_hw_set_input_addr(gsc, &ctx->s_frame.addr, GSC_M2M_BUF_NUM);
	gsc_hw_set_output_addr(gsc, &ctx->d_frame.addr, GSC_M2M_BUF_NUM);

	if (ctx->state & GSC_PARAMS) {
		gsc_hw_set_input_buf_masking(gsc, GSC_M2M_BUF_NUM, false);
		gsc_hw_set_output_buf_masking(gsc, GSC_M2M_BUF_NUM, false);
		gsc_hw_set_frm_done_irq_mask(gsc, false);
		gsc_hw_set_gsc_irq_enable(gsc, true);

		if (gsc_set_scaler_info(ctx)) {
			gsc_err("Scaler setup error");
			goto put_device;
		}

		gsc_hw_set_input_path(ctx);
		gsc_hw_set_in_size(ctx);
		gsc_hw_set_in_image_format(ctx);

		gsc_hw_set_output_path(ctx);
		gsc_hw_set_out_size(ctx);
		gsc_hw_set_out_image_format(ctx);

		gsc_hw_set_prescaler(ctx);
		gsc_hw_set_mainscaler(ctx);
		gsc_hw_set_rotation(ctx);
		gsc_hw_set_global_alpha(ctx);
	}
	/* When you update SFRs in the middle of operating
	gsc_hw_set_sfr_update(ctx);
	*/

	ctx->state &= ~GSC_PARAMS;

	if (!test_and_set_bit(ST_M2M_RUN, &gsc->state)) {
		/* One frame mode sequence
		 GSCALER_ON on -> GSCALER_OP_STATUS is operating ->
		 GSCALER_ON off */
		gsc_hw_enable_control(gsc, true);
		ret = gsc_wait_operating(gsc);
		if (ret < 0) {
			gsc_err("gscaler wait operating timeout");
			goto put_device;
		}
		gsc_hw_enable_control(gsc, false);
	}

	spin_unlock_irqrestore(&ctx->slock, flags);
	return;

put_device:
	ctx->state &= ~GSC_PARAMS;
	spin_unlock_irqrestore(&ctx->slock, flags);
}