C++ (Cpp) hsw_infoframe_data_regの例

コード例 #1

ファイル: intel_hdmi.c プロジェクト: 2asoft/freebsd

static void hsw_write_infoframe(struct drm_encoder *encoder,
				struct dip_infoframe *frame)
{
	uint32_t *data = (uint32_t *)frame;
	struct drm_device *dev = encoder->dev;
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
	u32 ctl_reg = HSW_TVIDEO_DIP_CTL(intel_crtc->pipe);
	u32 data_reg = hsw_infoframe_data_reg(frame, intel_crtc->pipe);
	unsigned int i, len = DIP_HEADER_SIZE + frame->len;
	u32 val = I915_READ(ctl_reg);

	if (data_reg == 0)
		return;

	val &= ~hsw_infoframe_enable(frame);
	I915_WRITE(ctl_reg, val);

	mmiowb();
	for (i = 0; i < len; i += 4) {
		I915_WRITE(data_reg + i, *data);
		data++;
	}
	/* Write every possible data byte to force correct ECC calculation. */
	for (; i < VIDEO_DIP_DATA_SIZE; i += 4)
		I915_WRITE(data_reg + i, 0);
	mmiowb();

	val |= hsw_infoframe_enable(frame);
	I915_WRITE(ctl_reg, val);
	POSTING_READ(ctl_reg);
}

コード例 #2

static void hsw_write_infoframe(struct drm_encoder *encoder,
				struct dip_infoframe *frame)
{
	uint32_t *data = (uint32_t *)frame;
	struct drm_device *dev = encoder->dev;
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
	u32 ctl_reg = HSW_TVIDEO_DIP_CTL(intel_crtc->pipe);
	u32 data_reg = hsw_infoframe_data_reg(frame, intel_crtc->pipe);
	unsigned int i, len = DIP_HEADER_SIZE + frame->len;
	u32 val = I915_READ(ctl_reg);

	if (data_reg == 0)
		return;

	intel_wait_for_vblank(dev, intel_crtc->pipe);

	val &= ~hsw_infoframe_enable(frame);
	I915_WRITE(ctl_reg, val);

	for (i = 0; i < len; i += 4) {
		I915_WRITE(data_reg + i, *data);
		data++;
	}

	val |= hsw_infoframe_enable(frame);
	I915_WRITE(ctl_reg, val);
}

コード例 #3

ファイル: intel_hdmi.c プロジェクト: Astralix/mainline-dss11

static void hsw_write_infoframe(struct drm_encoder *encoder,
				enum hdmi_infoframe_type type,
				const void *frame, ssize_t len)
{
	const uint32_t *data = frame;
	struct drm_device *dev = encoder->dev;
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
	u32 ctl_reg = HSW_TVIDEO_DIP_CTL(intel_crtc->config.cpu_transcoder);
	u32 data_reg;
	int i;
	u32 val = I915_READ(ctl_reg);

	data_reg = hsw_infoframe_data_reg(type,
					  intel_crtc->config.cpu_transcoder);
	if (data_reg == 0)
		return;

	val &= ~hsw_infoframe_enable(type);
	I915_WRITE(ctl_reg, val);

	mmiowb();
	for (i = 0; i < len; i += 4) {
		I915_WRITE(data_reg + i, *data);
		data++;
	}
	/* Write every possible data byte to force correct ECC calculation. */
	for (; i < VIDEO_DIP_DATA_SIZE; i += 4)
		I915_WRITE(data_reg + i, 0);
	mmiowb();

	val |= hsw_infoframe_enable(type);
	I915_WRITE(ctl_reg, val);
	POSTING_READ(ctl_reg);
}