static enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder)
{
+ struct drm_encoder *encoder = &intel_encoder->base;
int type = intel_encoder->type;
- if (type == INTEL_OUTPUT_HDMI) {
- struct intel_hdmi *intel_hdmi =
- enc_to_intel_hdmi(&intel_encoder->base);
- return intel_hdmi->ddi_port;
+ if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP ||
+ type == INTEL_OUTPUT_HDMI || type == INTEL_OUTPUT_UNKNOWN) {
+ struct intel_digital_port *intel_dig_port =
+ enc_to_dig_port(encoder);
+ return intel_dig_port->port;
+
} else if (type == INTEL_OUTPUT_ANALOG) {
return PORT_E;
+
} else {
DRM_ERROR("Invalid DDI encoder type %d\n", type);
BUG();
* in either FDI or DP modes only, as HDMI connections will work with both
* of those
*/
-void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port, bool use_fdi_mode)
+static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port,
+ bool use_fdi_mode)
{
struct drm_i915_private *dev_priv = dev->dev_private;
u32 reg;
{
int port;
- if (IS_HASWELL(dev)) {
+ if (HAS_DDI(dev)) {
for (port = PORT_A; port < PORT_E; port++)
intel_prepare_ddi_buffers(dev, port, false);
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- int pipe = intel_crtc->pipe;
- u32 reg, temp, i;
+ u32 temp, i, rx_ctl_val;
- /* Start the training iterating through available voltages and emphasis */
- for (i=0; i < ARRAY_SIZE(hsw_ddi_buf_ctl_values); i++) {
+ /* Set the FDI_RX_MISC pwrdn lanes and the 2 workarounds listed at the
+ * mode set "sequence for CRT port" document:
+ * - TP1 to TP2 time with the default value
+ * - FDI delay to 90h
+ */
+ I915_WRITE(_FDI_RXA_MISC, FDI_RX_PWRDN_LANE1_VAL(2) |
+ FDI_RX_PWRDN_LANE0_VAL(2) |
+ FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
+
+ /* Enable the PCH Receiver FDI PLL */
+ rx_ctl_val = FDI_RX_PLL_ENABLE | FDI_RX_ENHANCE_FRAME_ENABLE |
+ ((intel_crtc->fdi_lanes - 1) << 19);
+ I915_WRITE(_FDI_RXA_CTL, rx_ctl_val);
+ POSTING_READ(_FDI_RXA_CTL);
+ udelay(220);
+
+ /* Switch from Rawclk to PCDclk */
+ rx_ctl_val |= FDI_PCDCLK;
+ I915_WRITE(_FDI_RXA_CTL, rx_ctl_val);
+
+ /* Configure Port Clock Select */
+ I915_WRITE(PORT_CLK_SEL(PORT_E), intel_crtc->ddi_pll_sel);
+
+ /* Start the training iterating through available voltages and emphasis,
+ * testing each value twice. */
+ for (i = 0; i < ARRAY_SIZE(hsw_ddi_buf_ctl_values) * 2; i++) {
/* Configure DP_TP_CTL with auto-training */
I915_WRITE(DP_TP_CTL(PORT_E),
DP_TP_CTL_FDI_AUTOTRAIN |
DP_TP_CTL_ENABLE);
/* Configure and enable DDI_BUF_CTL for DDI E with next voltage */
- temp = I915_READ(DDI_BUF_CTL(PORT_E));
- temp = (temp & ~DDI_BUF_EMP_MASK);
I915_WRITE(DDI_BUF_CTL(PORT_E),
- temp |
- DDI_BUF_CTL_ENABLE |
- DDI_PORT_WIDTH_X2 |
- hsw_ddi_buf_ctl_values[i]);
+ DDI_BUF_CTL_ENABLE |
+ ((intel_crtc->fdi_lanes - 1) << 1) |
+ hsw_ddi_buf_ctl_values[i / 2]);
+ POSTING_READ(DDI_BUF_CTL(PORT_E));
udelay(600);
- /* We need to program FDI_RX_MISC with the default TP1 to TP2
- * values before enabling the receiver, and configure the delay
- * for the FDI timing generator to 90h. Luckily, all the other
- * bits are supposed to be zeroed, so we can write those values
- * directly.
- */
- I915_WRITE(FDI_RX_MISC(pipe), FDI_RX_TP1_TO_TP2_48 |
- FDI_RX_FDI_DELAY_90);
-
- /* Enable CPU FDI Receiver with auto-training */
- reg = FDI_RX_CTL(pipe);
- I915_WRITE(reg,
- I915_READ(reg) |
- FDI_LINK_TRAIN_AUTO |
- FDI_RX_ENABLE |
- FDI_LINK_TRAIN_PATTERN_1_CPT |
- FDI_RX_ENHANCE_FRAME_ENABLE |
- FDI_PORT_WIDTH_2X_LPT |
- FDI_RX_PLL_ENABLE);
- POSTING_READ(reg);
- udelay(100);
+ /* Program PCH FDI Receiver TU */
+ I915_WRITE(_FDI_RXA_TUSIZE1, TU_SIZE(64));
+
+ /* Enable PCH FDI Receiver with auto-training */
+ rx_ctl_val |= FDI_RX_ENABLE | FDI_LINK_TRAIN_AUTO;
+ I915_WRITE(_FDI_RXA_CTL, rx_ctl_val);
+ POSTING_READ(_FDI_RXA_CTL);
+
+ /* Wait for FDI receiver lane calibration */
+ udelay(30);
+
+ /* Unset FDI_RX_MISC pwrdn lanes */
+ temp = I915_READ(_FDI_RXA_MISC);
+ temp &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK);
+ I915_WRITE(_FDI_RXA_MISC, temp);
+ POSTING_READ(_FDI_RXA_MISC);
+
+ /* Wait for FDI auto training time */
+ udelay(5);
temp = I915_READ(DP_TP_STATUS(PORT_E));
if (temp & DP_TP_STATUS_AUTOTRAIN_DONE) {
- DRM_DEBUG_DRIVER("BUF_CTL training done on %d step\n", i);
+ DRM_DEBUG_KMS("FDI link training done on step %d\n", i);
/* Enable normal pixel sending for FDI */
I915_WRITE(DP_TP_CTL(PORT_E),
- DP_TP_CTL_FDI_AUTOTRAIN |
- DP_TP_CTL_LINK_TRAIN_NORMAL |
- DP_TP_CTL_ENHANCED_FRAME_ENABLE |
- DP_TP_CTL_ENABLE);
-
- break;
- } else {
- DRM_ERROR("Error training BUF_CTL %d\n", i);
+ DP_TP_CTL_FDI_AUTOTRAIN |
+ DP_TP_CTL_LINK_TRAIN_NORMAL |
+ DP_TP_CTL_ENHANCED_FRAME_ENABLE |
+ DP_TP_CTL_ENABLE);
- /* Disable DP_TP_CTL and FDI_RX_CTL) and retry */
- I915_WRITE(DP_TP_CTL(PORT_E),
- I915_READ(DP_TP_CTL(PORT_E)) &
- ~DP_TP_CTL_ENABLE);
- I915_WRITE(FDI_RX_CTL(pipe),
- I915_READ(FDI_RX_CTL(pipe)) &
- ~FDI_RX_PLL_ENABLE);
- continue;
+ return;
}
- }
- DRM_DEBUG_KMS("FDI train done.\n");
-}
+ /* Disable DP_TP_CTL and FDI_RX_CTL and retry */
+ I915_WRITE(DP_TP_CTL(PORT_E),
+ I915_READ(DP_TP_CTL(PORT_E)) & ~DP_TP_CTL_ENABLE);
-/* For DDI connections, it is possible to support different outputs over the
- * same DDI port, such as HDMI or DP or even VGA via FDI. So we don't know by
- * the time the output is detected what exactly is on the other end of it. This
- * function aims at providing support for this detection and proper output
- * configuration.
- */
-void intel_ddi_init(struct drm_device *dev, enum port port)
-{
- /* For now, we don't do any proper output detection and assume that we
- * handle HDMI only */
+ rx_ctl_val &= ~FDI_RX_ENABLE;
+ I915_WRITE(_FDI_RXA_CTL, rx_ctl_val);
- switch(port){
- case PORT_A:
- /* We don't handle eDP and DP yet */
- DRM_DEBUG_DRIVER("Found digital output on DDI port A\n");
- break;
- /* Assume that the ports B, C and D are working in HDMI mode for now */
- case PORT_B:
- case PORT_C:
- case PORT_D:
- intel_hdmi_init(dev, DDI_BUF_CTL(port), port);
- break;
- default:
- DRM_DEBUG_DRIVER("No handlers defined for port %d, skipping DDI initialization\n",
- port);
- break;
+ /* Reset FDI_RX_MISC pwrdn lanes */
+ temp = I915_READ(_FDI_RXA_MISC);
+ temp &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK);
+ temp |= FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2);
+ I915_WRITE(_FDI_RXA_MISC, temp);
}
+
+ DRM_ERROR("FDI link training failed!\n");
}
/* WRPLL clock dividers */
{298000, 2, 21, 19},
};
-void intel_ddi_mode_set(struct drm_encoder *encoder,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
+static void intel_ddi_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
{
struct drm_crtc *crtc = encoder->crtc;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
- int port = intel_hdmi->ddi_port;
+ struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
+ int port = intel_ddi_get_encoder_port(intel_encoder);
int pipe = intel_crtc->pipe;
+ int type = intel_encoder->type;
- /* On Haswell, we need to enable the clocks and prepare DDI function to
- * work in HDMI mode for this pipe.
- */
- DRM_DEBUG_KMS("Preparing HDMI DDI mode for Haswell on port %c, pipe %c\n", port_name(port), pipe_name(pipe));
+ DRM_DEBUG_KMS("Preparing DDI mode for Haswell on port %c, pipe %c\n",
+ port_name(port), pipe_name(pipe));
- if (intel_hdmi->has_audio) {
- /* Proper support for digital audio needs a new logic and a new set
- * of registers, so we leave it for future patch bombing.
- */
- DRM_DEBUG_DRIVER("HDMI audio on pipe %c on DDI\n",
- pipe_name(intel_crtc->pipe));
+ if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) {
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
- /* write eld */
- DRM_DEBUG_DRIVER("HDMI audio: write eld information\n");
- intel_write_eld(encoder, adjusted_mode);
- }
+ intel_dp->DP = DDI_BUF_CTL_ENABLE | DDI_BUF_EMP_400MV_0DB_HSW;
+ switch (intel_dp->lane_count) {
+ case 1:
+ intel_dp->DP |= DDI_PORT_WIDTH_X1;
+ break;
+ case 2:
+ intel_dp->DP |= DDI_PORT_WIDTH_X2;
+ break;
+ case 4:
+ intel_dp->DP |= DDI_PORT_WIDTH_X4;
+ break;
+ default:
+ intel_dp->DP |= DDI_PORT_WIDTH_X4;
+ WARN(1, "Unexpected DP lane count %d\n",
+ intel_dp->lane_count);
+ break;
+ }
+
+ if (intel_dp->has_audio) {
+ DRM_DEBUG_DRIVER("DP audio on pipe %c on DDI\n",
+ pipe_name(intel_crtc->pipe));
+
+ /* write eld */
+ DRM_DEBUG_DRIVER("DP audio: write eld information\n");
+ intel_write_eld(encoder, adjusted_mode);
+ }
- intel_hdmi->set_infoframes(encoder, adjusted_mode);
+ intel_dp_init_link_config(intel_dp);
+
+ } else if (type == INTEL_OUTPUT_HDMI) {
+ struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
+
+ if (intel_hdmi->has_audio) {
+ /* Proper support for digital audio needs a new logic
+ * and a new set of registers, so we leave it for future
+ * patch bombing.
+ */
+ DRM_DEBUG_DRIVER("HDMI audio on pipe %c on DDI\n",
+ pipe_name(intel_crtc->pipe));
+
+ /* write eld */
+ DRM_DEBUG_DRIVER("HDMI audio: write eld information\n");
+ intel_write_eld(encoder, adjusted_mode);
+ }
+
+ intel_hdmi->set_infoframes(encoder, adjusted_mode);
+ }
}
static struct intel_encoder *
{
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc);
+ struct drm_encoder *encoder = &intel_encoder->base;
struct drm_i915_private *dev_priv = crtc->dev->dev_private;
struct intel_ddi_plls *plls = &dev_priv->ddi_plls;
int type = intel_encoder->type;
intel_ddi_put_crtc_pll(crtc);
- if (type == INTEL_OUTPUT_HDMI) {
+ if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) {
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+ switch (intel_dp->link_bw) {
+ case DP_LINK_BW_1_62:
+ intel_crtc->ddi_pll_sel = PORT_CLK_SEL_LCPLL_810;
+ break;
+ case DP_LINK_BW_2_7:
+ intel_crtc->ddi_pll_sel = PORT_CLK_SEL_LCPLL_1350;
+ break;
+ case DP_LINK_BW_5_4:
+ intel_crtc->ddi_pll_sel = PORT_CLK_SEL_LCPLL_2700;
+ break;
+ default:
+ DRM_ERROR("Link bandwidth %d unsupported\n",
+ intel_dp->link_bw);
+ return false;
+ }
+
+ /* We don't need to turn any PLL on because we'll use LCPLL. */
+ return true;
+
+ } else if (type == INTEL_OUTPUT_HDMI) {
int p, n2, r2;
if (plls->wrpll1_refcount == 0) {
return true;
}
+void intel_ddi_set_pipe_settings(struct drm_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = crtc->dev->dev_private;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc);
+ enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder;
+ int type = intel_encoder->type;
+ uint32_t temp;
+
+ if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) {
+
+ temp = TRANS_MSA_SYNC_CLK;
+ switch (intel_crtc->bpp) {
+ case 18:
+ temp |= TRANS_MSA_6_BPC;
+ break;
+ case 24:
+ temp |= TRANS_MSA_8_BPC;
+ break;
+ case 30:
+ temp |= TRANS_MSA_10_BPC;
+ break;
+ case 36:
+ temp |= TRANS_MSA_12_BPC;
+ break;
+ default:
+ temp |= TRANS_MSA_8_BPC;
+ WARN(1, "%d bpp unsupported by DDI function\n",
+ intel_crtc->bpp);
+ }
+ I915_WRITE(TRANS_MSA_MISC(cpu_transcoder), temp);
+ }
+}
+
void intel_ddi_enable_pipe_func(struct drm_crtc *crtc)
{
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc);
+ struct drm_encoder *encoder = &intel_encoder->base;
struct drm_i915_private *dev_priv = crtc->dev->dev_private;
enum pipe pipe = intel_crtc->pipe;
+ enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder;
+ enum port port = intel_ddi_get_encoder_port(intel_encoder);
+ int type = intel_encoder->type;
uint32_t temp;
- /* Enable PIPE_DDI_FUNC_CTL for the pipe to work in HDMI mode */
- temp = PIPE_DDI_FUNC_ENABLE;
+ /* Enable TRANS_DDI_FUNC_CTL for the pipe to work in HDMI mode */
+ temp = TRANS_DDI_FUNC_ENABLE;
+ temp |= TRANS_DDI_SELECT_PORT(port);
switch (intel_crtc->bpp) {
case 18:
- temp |= PIPE_DDI_BPC_6;
+ temp |= TRANS_DDI_BPC_6;
break;
case 24:
- temp |= PIPE_DDI_BPC_8;
+ temp |= TRANS_DDI_BPC_8;
break;
case 30:
- temp |= PIPE_DDI_BPC_10;
+ temp |= TRANS_DDI_BPC_10;
break;
case 36:
- temp |= PIPE_DDI_BPC_12;
+ temp |= TRANS_DDI_BPC_12;
break;
default:
- WARN(1, "%d bpp unsupported by pipe DDI function\n",
+ WARN(1, "%d bpp unsupported by transcoder DDI function\n",
intel_crtc->bpp);
}
if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC)
- temp |= PIPE_DDI_PVSYNC;
+ temp |= TRANS_DDI_PVSYNC;
if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC)
- temp |= PIPE_DDI_PHSYNC;
+ temp |= TRANS_DDI_PHSYNC;
+
+ if (cpu_transcoder == TRANSCODER_EDP) {
+ switch (pipe) {
+ case PIPE_A:
+ temp |= TRANS_DDI_EDP_INPUT_A_ONOFF;
+ break;
+ case PIPE_B:
+ temp |= TRANS_DDI_EDP_INPUT_B_ONOFF;
+ break;
+ case PIPE_C:
+ temp |= TRANS_DDI_EDP_INPUT_C_ONOFF;
+ break;
+ default:
+ BUG();
+ break;
+ }
+ }
- if (intel_encoder->type == INTEL_OUTPUT_HDMI) {
- struct intel_hdmi *intel_hdmi =
- enc_to_intel_hdmi(&intel_encoder->base);
+ if (type == INTEL_OUTPUT_HDMI) {
+ struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
if (intel_hdmi->has_hdmi_sink)
- temp |= PIPE_DDI_MODE_SELECT_HDMI;
+ temp |= TRANS_DDI_MODE_SELECT_HDMI;
else
- temp |= PIPE_DDI_MODE_SELECT_DVI;
+ temp |= TRANS_DDI_MODE_SELECT_DVI;
+
+ } else if (type == INTEL_OUTPUT_ANALOG) {
+ temp |= TRANS_DDI_MODE_SELECT_FDI;
+ temp |= (intel_crtc->fdi_lanes - 1) << 1;
+
+ } else if (type == INTEL_OUTPUT_DISPLAYPORT ||
+ type == INTEL_OUTPUT_EDP) {
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+ temp |= TRANS_DDI_MODE_SELECT_DP_SST;
+
+ switch (intel_dp->lane_count) {
+ case 1:
+ temp |= TRANS_DDI_PORT_WIDTH_X1;
+ break;
+ case 2:
+ temp |= TRANS_DDI_PORT_WIDTH_X2;
+ break;
+ case 4:
+ temp |= TRANS_DDI_PORT_WIDTH_X4;
+ break;
+ default:
+ temp |= TRANS_DDI_PORT_WIDTH_X4;
+ WARN(1, "Unsupported lane count %d\n",
+ intel_dp->lane_count);
+ }
- temp |= PIPE_DDI_SELECT_PORT(intel_hdmi->ddi_port);
- } else if (intel_encoder->type == INTEL_OUTPUT_ANALOG) {
- temp |= PIPE_DDI_MODE_SELECT_FDI;
- temp |= PIPE_DDI_SELECT_PORT(PORT_E);
} else {
WARN(1, "Invalid encoder type %d for pipe %d\n",
intel_encoder->type, pipe);
}
- I915_WRITE(DDI_FUNC_CTL(pipe), temp);
+ I915_WRITE(TRANS_DDI_FUNC_CTL(cpu_transcoder), temp);
}
-void intel_ddi_disable_pipe_func(struct drm_i915_private *dev_priv,
- enum pipe pipe)
+void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
+ enum transcoder cpu_transcoder)
{
- uint32_t reg = DDI_FUNC_CTL(pipe);
+ uint32_t reg = TRANS_DDI_FUNC_CTL(cpu_transcoder);
uint32_t val = I915_READ(reg);
- val &= ~(PIPE_DDI_FUNC_ENABLE | PIPE_DDI_PORT_MASK);
- val |= PIPE_DDI_PORT_NONE;
+ val &= ~(TRANS_DDI_FUNC_ENABLE | TRANS_DDI_PORT_MASK);
+ val |= TRANS_DDI_PORT_NONE;
I915_WRITE(reg, val);
}
+bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector)
+{
+ struct drm_device *dev = intel_connector->base.dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_encoder *intel_encoder = intel_connector->encoder;
+ int type = intel_connector->base.connector_type;
+ enum port port = intel_ddi_get_encoder_port(intel_encoder);
+ enum pipe pipe = 0;
+ enum transcoder cpu_transcoder;
+ uint32_t tmp;
+
+ if (!intel_encoder->get_hw_state(intel_encoder, &pipe))
+ return false;
+
+ if (port == PORT_A)
+ cpu_transcoder = TRANSCODER_EDP;
+ else
+ cpu_transcoder = pipe;
+
+ tmp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder));
+
+ switch (tmp & TRANS_DDI_MODE_SELECT_MASK) {
+ case TRANS_DDI_MODE_SELECT_HDMI:
+ case TRANS_DDI_MODE_SELECT_DVI:
+ return (type == DRM_MODE_CONNECTOR_HDMIA);
+
+ case TRANS_DDI_MODE_SELECT_DP_SST:
+ if (type == DRM_MODE_CONNECTOR_eDP)
+ return true;
+ case TRANS_DDI_MODE_SELECT_DP_MST:
+ return (type == DRM_MODE_CONNECTOR_DisplayPort);
+
+ case TRANS_DDI_MODE_SELECT_FDI:
+ return (type == DRM_MODE_CONNECTOR_VGA);
+
+ default:
+ return false;
+ }
+}
+
bool intel_ddi_get_hw_state(struct intel_encoder *encoder,
enum pipe *pipe)
{
struct drm_device *dev = encoder->base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
+ enum port port = intel_ddi_get_encoder_port(encoder);
u32 tmp;
int i;
- tmp = I915_READ(DDI_BUF_CTL(intel_hdmi->ddi_port));
+ tmp = I915_READ(DDI_BUF_CTL(port));
if (!(tmp & DDI_BUF_CTL_ENABLE))
return false;
- for_each_pipe(i) {
- tmp = I915_READ(DDI_FUNC_CTL(i));
+ if (port == PORT_A) {
+ tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
- if ((tmp & PIPE_DDI_PORT_MASK)
- == PIPE_DDI_SELECT_PORT(intel_hdmi->ddi_port)) {
- *pipe = i;
- return true;
+ switch (tmp & TRANS_DDI_EDP_INPUT_MASK) {
+ case TRANS_DDI_EDP_INPUT_A_ON:
+ case TRANS_DDI_EDP_INPUT_A_ONOFF:
+ *pipe = PIPE_A;
+ break;
+ case TRANS_DDI_EDP_INPUT_B_ONOFF:
+ *pipe = PIPE_B;
+ break;
+ case TRANS_DDI_EDP_INPUT_C_ONOFF:
+ *pipe = PIPE_C;
+ break;
+ }
+
+ return true;
+ } else {
+ for (i = TRANSCODER_A; i <= TRANSCODER_C; i++) {
+ tmp = I915_READ(TRANS_DDI_FUNC_CTL(i));
+
+ if ((tmp & TRANS_DDI_PORT_MASK)
+ == TRANS_DDI_SELECT_PORT(port)) {
+ *pipe = i;
+ return true;
+ }
}
}
- DRM_DEBUG_KMS("No pipe for ddi port %i found\n", intel_hdmi->ddi_port);
+ DRM_DEBUG_KMS("No pipe for ddi port %i found\n", port);
return true;
}
{
uint32_t temp, ret;
enum port port;
+ enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
+ pipe);
int i;
- temp = I915_READ(DDI_FUNC_CTL(pipe));
- temp &= PIPE_DDI_PORT_MASK;
- for (i = PORT_A; i <= PORT_E; i++)
- if (temp == PIPE_DDI_SELECT_PORT(i))
- port = i;
+ if (cpu_transcoder == TRANSCODER_EDP) {
+ port = PORT_A;
+ } else {
+ temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder));
+ temp &= TRANS_DDI_PORT_MASK;
+
+ for (i = PORT_B; i <= PORT_E; i++)
+ if (temp == TRANS_DDI_SELECT_PORT(i))
+ port = i;
+ }
ret = I915_READ(PORT_CLK_SEL(port));
struct drm_i915_private *dev_priv = crtc->dev->dev_private;
struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc);
enum port port = intel_ddi_get_encoder_port(intel_encoder);
+ enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder;
- I915_WRITE(PIPE_CLK_SEL(intel_crtc->pipe), PIPE_CLK_SEL_PORT(port));
+ if (cpu_transcoder != TRANSCODER_EDP)
+ I915_WRITE(TRANS_CLK_SEL(cpu_transcoder),
+ TRANS_CLK_SEL_PORT(port));
}
void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc)
{
struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private;
+ enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder;
- I915_WRITE(PIPE_CLK_SEL(intel_crtc->pipe), PIPE_CLK_SEL_DISABLED);
+ if (cpu_transcoder != TRANSCODER_EDP)
+ I915_WRITE(TRANS_CLK_SEL(cpu_transcoder),
+ TRANS_CLK_SEL_DISABLED);
}
-void intel_ddi_pre_enable(struct intel_encoder *intel_encoder)
+static void intel_ddi_pre_enable(struct intel_encoder *intel_encoder)
{
- struct drm_crtc *crtc = intel_encoder->base.crtc;
- struct drm_i915_private *dev_priv = crtc->dev->dev_private;
+ struct drm_encoder *encoder = &intel_encoder->base;
+ struct drm_crtc *crtc = encoder->crtc;
+ struct drm_i915_private *dev_priv = encoder->dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
enum port port = intel_ddi_get_encoder_port(intel_encoder);
+ int type = intel_encoder->type;
- WARN_ON(intel_crtc->ddi_pll_sel == PORT_CLK_SEL_NONE);
+ if (type == INTEL_OUTPUT_EDP) {
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+ ironlake_edp_panel_vdd_on(intel_dp);
+ ironlake_edp_panel_on(intel_dp);
+ ironlake_edp_panel_vdd_off(intel_dp, true);
+ }
+ WARN_ON(intel_crtc->ddi_pll_sel == PORT_CLK_SEL_NONE);
I915_WRITE(PORT_CLK_SEL(port), intel_crtc->ddi_pll_sel);
+
+ if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) {
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+ intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
+ intel_dp_start_link_train(intel_dp);
+ intel_dp_complete_link_train(intel_dp);
+ }
}
static void intel_wait_ddi_buf_idle(struct drm_i915_private *dev_priv,
DRM_ERROR("Timeout waiting for DDI BUF %c idle bit\n", port_name(port));
}
-void intel_ddi_post_disable(struct intel_encoder *intel_encoder)
+static void intel_ddi_post_disable(struct intel_encoder *intel_encoder)
{
struct drm_encoder *encoder = &intel_encoder->base;
struct drm_i915_private *dev_priv = encoder->dev->dev_private;
enum port port = intel_ddi_get_encoder_port(intel_encoder);
+ int type = intel_encoder->type;
uint32_t val;
+ bool wait = false;
val = I915_READ(DDI_BUF_CTL(port));
if (val & DDI_BUF_CTL_ENABLE) {
val &= ~DDI_BUF_CTL_ENABLE;
I915_WRITE(DDI_BUF_CTL(port), val);
+ wait = true;
+ }
+
+ val = I915_READ(DP_TP_CTL(port));
+ val &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK);
+ val |= DP_TP_CTL_LINK_TRAIN_PAT1;
+ I915_WRITE(DP_TP_CTL(port), val);
+
+ if (wait)
intel_wait_ddi_buf_idle(dev_priv, port);
+
+ if (type == INTEL_OUTPUT_EDP) {
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+ ironlake_edp_panel_vdd_on(intel_dp);
+ ironlake_edp_panel_off(intel_dp);
}
I915_WRITE(PORT_CLK_SEL(port), PORT_CLK_SEL_NONE);
}
-void intel_enable_ddi(struct intel_encoder *encoder)
+static void intel_enable_ddi(struct intel_encoder *intel_encoder)
{
- struct drm_device *dev = encoder->base.dev;
+ struct drm_encoder *encoder = &intel_encoder->base;
+ struct drm_device *dev = encoder->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
- int port = intel_hdmi->ddi_port;
+ enum port port = intel_ddi_get_encoder_port(intel_encoder);
+ int type = intel_encoder->type;
- /* Enable DDI_BUF_CTL. In HDMI/DVI mode, the port width,
- * and swing/emphasis values are ignored so nothing special needs
- * to be done besides enabling the port.
- */
- I915_WRITE(DDI_BUF_CTL(port), DDI_BUF_CTL_ENABLE);
+ if (type == INTEL_OUTPUT_HDMI) {
+ /* In HDMI/DVI mode, the port width, and swing/emphasis values
+ * are ignored so nothing special needs to be done besides
+ * enabling the port.
+ */
+ I915_WRITE(DDI_BUF_CTL(port), DDI_BUF_CTL_ENABLE);
+ } else if (type == INTEL_OUTPUT_EDP) {
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+ ironlake_edp_backlight_on(intel_dp);
+ }
}
-void intel_disable_ddi(struct intel_encoder *encoder)
+static void intel_disable_ddi(struct intel_encoder *intel_encoder)
{
- /* This will be needed in the future, so leave it here for now */
+ struct drm_encoder *encoder = &intel_encoder->base;
+ int type = intel_encoder->type;
+
+ if (type == INTEL_OUTPUT_EDP) {
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+ ironlake_edp_backlight_off(intel_dp);
+ }
}
-static int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv)
+int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv)
{
if (I915_READ(HSW_FUSE_STRAP) & HSW_CDCLK_LIMIT)
return 450;
else if ((I915_READ(LCPLL_CTL) & LCPLL_CLK_FREQ_MASK) ==
LCPLL_CLK_FREQ_450)
return 450;
+ else if (IS_ULT(dev_priv->dev))
+ return 338;
else
return 540;
}
if (val & LCPLL_PLL_DISABLE)
DRM_ERROR("LCPLL is disabled\n");
}
+
+void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder)
+{
+ struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
+ struct intel_dp *intel_dp = &intel_dig_port->dp;
+ struct drm_i915_private *dev_priv = encoder->dev->dev_private;
+ enum port port = intel_dig_port->port;
+ bool wait;
+ uint32_t val;
+
+ if (I915_READ(DP_TP_CTL(port)) & DP_TP_CTL_ENABLE) {
+ val = I915_READ(DDI_BUF_CTL(port));
+ if (val & DDI_BUF_CTL_ENABLE) {
+ val &= ~DDI_BUF_CTL_ENABLE;
+ I915_WRITE(DDI_BUF_CTL(port), val);
+ wait = true;
+ }
+
+ val = I915_READ(DP_TP_CTL(port));
+ val &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK);
+ val |= DP_TP_CTL_LINK_TRAIN_PAT1;
+ I915_WRITE(DP_TP_CTL(port), val);
+ POSTING_READ(DP_TP_CTL(port));
+
+ if (wait)
+ intel_wait_ddi_buf_idle(dev_priv, port);
+ }
+
+ val = DP_TP_CTL_ENABLE | DP_TP_CTL_MODE_SST |
+ DP_TP_CTL_LINK_TRAIN_PAT1 | DP_TP_CTL_SCRAMBLE_DISABLE;
+ if (intel_dp->link_configuration[1] & DP_LANE_COUNT_ENHANCED_FRAME_EN)
+ val |= DP_TP_CTL_ENHANCED_FRAME_ENABLE;
+ I915_WRITE(DP_TP_CTL(port), val);
+ POSTING_READ(DP_TP_CTL(port));
+
+ intel_dp->DP |= DDI_BUF_CTL_ENABLE;
+ I915_WRITE(DDI_BUF_CTL(port), intel_dp->DP);
+ POSTING_READ(DDI_BUF_CTL(port));
+
+ udelay(600);
+}
+
+void intel_ddi_fdi_disable(struct drm_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = crtc->dev->dev_private;
+ struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc);
+ uint32_t val;
+
+ intel_ddi_post_disable(intel_encoder);
+
+ val = I915_READ(_FDI_RXA_CTL);
+ val &= ~FDI_RX_ENABLE;
+ I915_WRITE(_FDI_RXA_CTL, val);
+
+ val = I915_READ(_FDI_RXA_MISC);
+ val &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK);
+ val |= FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2);
+ I915_WRITE(_FDI_RXA_MISC, val);
+
+ val = I915_READ(_FDI_RXA_CTL);
+ val &= ~FDI_PCDCLK;
+ I915_WRITE(_FDI_RXA_CTL, val);
+
+ val = I915_READ(_FDI_RXA_CTL);
+ val &= ~FDI_RX_PLL_ENABLE;
+ I915_WRITE(_FDI_RXA_CTL, val);
+}
+
+static void intel_ddi_hot_plug(struct intel_encoder *intel_encoder)
+{
+ struct intel_dp *intel_dp = enc_to_intel_dp(&intel_encoder->base);
+ int type = intel_encoder->type;
+
+ if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP)
+ intel_dp_check_link_status(intel_dp);
+}
+
+static void intel_ddi_destroy(struct drm_encoder *encoder)
+{
+ /* HDMI has nothing special to destroy, so we can go with this. */
+ intel_dp_encoder_destroy(encoder);
+}
+
+static bool intel_ddi_mode_fixup(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
+ int type = intel_encoder->type;
+
+ WARN(type == INTEL_OUTPUT_UNKNOWN, "mode_fixup() on unknown output!\n");
+
+ if (type == INTEL_OUTPUT_HDMI)
+ return intel_hdmi_mode_fixup(encoder, mode, adjusted_mode);
+ else
+ return intel_dp_mode_fixup(encoder, mode, adjusted_mode);
+}
+
+static const struct drm_encoder_funcs intel_ddi_funcs = {
+ .destroy = intel_ddi_destroy,
+};
+
+static const struct drm_encoder_helper_funcs intel_ddi_helper_funcs = {
+ .mode_fixup = intel_ddi_mode_fixup,
+ .mode_set = intel_ddi_mode_set,
+ .disable = intel_encoder_noop,
+};
+
+void intel_ddi_init(struct drm_device *dev, enum port port)
+{
+ struct intel_digital_port *intel_dig_port;
+ struct intel_encoder *intel_encoder;
+ struct drm_encoder *encoder;
+ struct intel_connector *hdmi_connector = NULL;
+ struct intel_connector *dp_connector = NULL;
+
+ intel_dig_port = kzalloc(sizeof(struct intel_digital_port), GFP_KERNEL);
+ if (!intel_dig_port)
+ return;
+
+ dp_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL);
+ if (!dp_connector) {
+ kfree(intel_dig_port);
+ return;
+ }
+
+ if (port != PORT_A) {
+ hdmi_connector = kzalloc(sizeof(struct intel_connector),
+ GFP_KERNEL);
+ if (!hdmi_connector) {
+ kfree(dp_connector);
+ kfree(intel_dig_port);
+ return;
+ }
+ }
+
+ intel_encoder = &intel_dig_port->base;
+ encoder = &intel_encoder->base;
+
+ drm_encoder_init(dev, encoder, &intel_ddi_funcs,
+ DRM_MODE_ENCODER_TMDS);
+ drm_encoder_helper_add(encoder, &intel_ddi_helper_funcs);
+
+ intel_encoder->enable = intel_enable_ddi;
+ intel_encoder->pre_enable = intel_ddi_pre_enable;
+ intel_encoder->disable = intel_disable_ddi;
+ intel_encoder->post_disable = intel_ddi_post_disable;
+ intel_encoder->get_hw_state = intel_ddi_get_hw_state;
+
+ intel_dig_port->port = port;
+ if (hdmi_connector)
+ intel_dig_port->hdmi.sdvox_reg = DDI_BUF_CTL(port);
+ else
+ intel_dig_port->hdmi.sdvox_reg = 0;
+ intel_dig_port->dp.output_reg = DDI_BUF_CTL(port);
+
+ intel_encoder->type = INTEL_OUTPUT_UNKNOWN;
+ intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
+ intel_encoder->cloneable = false;
+ intel_encoder->hot_plug = intel_ddi_hot_plug;
+
+ if (hdmi_connector)
+ intel_hdmi_init_connector(intel_dig_port, hdmi_connector);
+ intel_dp_init_connector(intel_dig_port, dp_connector);
+}
projects / linux-imx.git / blobdiff