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path: root/drivers/gpu/drm/i915/intel_sdvo.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_sdvo.c')
-rw-r--r--drivers/gpu/drm/i915/intel_sdvo.c137
1 files changed, 114 insertions, 23 deletions
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 9913651c1e1..f3ef6bfd8ff 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -69,6 +69,10 @@ struct intel_sdvo_priv {
* This is set if we treat the device as HDMI, instead of DVI.
*/
bool is_hdmi;
+ /**
+ * This is set if we detect output of sdvo device as LVDS.
+ */
+ bool is_lvds;
/**
* Returned SDTV resolutions allowed for the current format, if the
@@ -1398,10 +1402,8 @@ static enum drm_connector_status intel_sdvo_detect(struct drm_connector *connect
static void intel_sdvo_get_ddc_modes(struct drm_connector *connector)
{
struct intel_output *intel_output = to_intel_output(connector);
- struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
/* set the bus switch and get the modes */
- intel_sdvo_set_control_bus_switch(intel_output, sdvo_priv->ddc_bus);
intel_ddc_get_modes(intel_output);
#if 0
@@ -1543,6 +1545,37 @@ static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
}
}
+static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
+{
+ struct intel_output *intel_output = to_intel_output(connector);
+ struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+ struct drm_i915_private *dev_priv = connector->dev->dev_private;
+
+ /*
+ * Attempt to get the mode list from DDC.
+ * Assume that the preferred modes are
+ * arranged in priority order.
+ */
+ /* set the bus switch and get the modes */
+ intel_sdvo_set_control_bus_switch(intel_output, sdvo_priv->ddc_bus);
+ intel_ddc_get_modes(intel_output);
+ if (list_empty(&connector->probed_modes) == false)
+ return;
+
+ /* Fetch modes from VBT */
+ if (dev_priv->sdvo_lvds_vbt_mode != NULL) {
+ struct drm_display_mode *newmode;
+ newmode = drm_mode_duplicate(connector->dev,
+ dev_priv->sdvo_lvds_vbt_mode);
+ if (newmode != NULL) {
+ /* Guarantee the mode is preferred */
+ newmode->type = (DRM_MODE_TYPE_PREFERRED |
+ DRM_MODE_TYPE_DRIVER);
+ drm_mode_probed_add(connector, newmode);
+ }
+ }
+}
+
static int intel_sdvo_get_modes(struct drm_connector *connector)
{
struct intel_output *output = to_intel_output(connector);
@@ -1550,6 +1583,8 @@ static int intel_sdvo_get_modes(struct drm_connector *connector)
if (sdvo_priv->is_tv)
intel_sdvo_get_tv_modes(connector);
+ else if (sdvo_priv->is_lvds == true)
+ intel_sdvo_get_lvds_modes(connector);
else
intel_sdvo_get_ddc_modes(connector);
@@ -1564,6 +1599,9 @@ static void intel_sdvo_destroy(struct drm_connector *connector)
if (intel_output->i2c_bus)
intel_i2c_destroy(intel_output->i2c_bus);
+ if (intel_output->ddc_bus)
+ intel_i2c_destroy(intel_output->ddc_bus);
+
drm_sysfs_connector_remove(connector);
drm_connector_cleanup(connector);
kfree(intel_output);
@@ -1660,12 +1698,56 @@ intel_sdvo_get_digital_encoding_mode(struct intel_output *output)
return true;
}
+static struct intel_output *
+intel_sdvo_chan_to_intel_output(struct intel_i2c_chan *chan)
+{
+ struct drm_device *dev = chan->drm_dev;
+ struct drm_connector *connector;
+ struct intel_output *intel_output = NULL;
+
+ list_for_each_entry(connector,
+ &dev->mode_config.connector_list, head) {
+ if (to_intel_output(connector)->ddc_bus == chan) {
+ intel_output = to_intel_output(connector);
+ break;
+ }
+ }
+ return intel_output;
+}
+
+static int intel_sdvo_master_xfer(struct i2c_adapter *i2c_adap,
+ struct i2c_msg msgs[], int num)
+{
+ struct intel_output *intel_output;
+ struct intel_sdvo_priv *sdvo_priv;
+ struct i2c_algo_bit_data *algo_data;
+ struct i2c_algorithm *algo;
+
+ algo_data = (struct i2c_algo_bit_data *)i2c_adap->algo_data;
+ intel_output =
+ intel_sdvo_chan_to_intel_output(
+ (struct intel_i2c_chan *)(algo_data->data));
+ if (intel_output == NULL)
+ return -EINVAL;
+
+ sdvo_priv = intel_output->dev_priv;
+ algo = (struct i2c_algorithm *)intel_output->i2c_bus->adapter.algo;
+
+ intel_sdvo_set_control_bus_switch(intel_output, sdvo_priv->ddc_bus);
+ return algo->master_xfer(i2c_adap, msgs, num);
+}
+
+static struct i2c_algorithm intel_sdvo_i2c_bit_algo = {
+ .master_xfer = intel_sdvo_master_xfer,
+};
+
bool intel_sdvo_init(struct drm_device *dev, int output_device)
{
struct drm_connector *connector;
struct intel_output *intel_output;
struct intel_sdvo_priv *sdvo_priv;
struct intel_i2c_chan *i2cbus = NULL;
+ struct intel_i2c_chan *ddcbus = NULL;
int connector_type;
u8 ch[0x40];
int i;
@@ -1676,17 +1758,9 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
return false;
}
- connector = &intel_output->base;
-
- drm_connector_init(dev, connector, &intel_sdvo_connector_funcs,
- DRM_MODE_CONNECTOR_Unknown);
- drm_connector_helper_add(connector, &intel_sdvo_connector_helper_funcs);
sdvo_priv = (struct intel_sdvo_priv *)(intel_output + 1);
intel_output->type = INTEL_OUTPUT_SDVO;
- connector->interlace_allowed = 0;
- connector->doublescan_allowed = 0;
-
/* setup the DDC bus. */
if (output_device == SDVOB)
i2cbus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOB");
@@ -1694,7 +1768,7 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
i2cbus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOC");
if (!i2cbus)
- goto err_connector;
+ goto err_inteloutput;
sdvo_priv->i2c_bus = i2cbus;
@@ -1710,7 +1784,6 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
intel_output->i2c_bus = i2cbus;
intel_output->dev_priv = sdvo_priv;
-
/* Read the regs to test if we can talk to the device */
for (i = 0; i < 0x40; i++) {
if (!intel_sdvo_read_byte(intel_output, i, &ch[i])) {
@@ -1720,6 +1793,22 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
}
}
+ /* setup the DDC bus. */
+ if (output_device == SDVOB)
+ ddcbus = intel_i2c_create(dev, GPIOE, "SDVOB DDC BUS");
+ else
+ ddcbus = intel_i2c_create(dev, GPIOE, "SDVOC DDC BUS");
+
+ if (ddcbus == NULL)
+ goto err_i2c;
+
+ intel_sdvo_i2c_bit_algo.functionality =
+ intel_output->i2c_bus->adapter.algo->functionality;
+ ddcbus->adapter.algo = &intel_sdvo_i2c_bit_algo;
+ intel_output->ddc_bus = ddcbus;
+
+ /* In defaut case sdvo lvds is false */
+ sdvo_priv->is_lvds = false;
intel_sdvo_get_capabilities(intel_output, &sdvo_priv->caps);
if (sdvo_priv->caps.output_flags &
@@ -1729,7 +1818,6 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
else
sdvo_priv->controlled_output = SDVO_OUTPUT_TMDS1;
- connector->display_info.subpixel_order = SubPixelHorizontalRGB;
encoder_type = DRM_MODE_ENCODER_TMDS;
connector_type = DRM_MODE_CONNECTOR_DVID;
@@ -1747,7 +1835,6 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
else if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_SVID0)
{
sdvo_priv->controlled_output = SDVO_OUTPUT_SVID0;
- connector->display_info.subpixel_order = SubPixelHorizontalRGB;
encoder_type = DRM_MODE_ENCODER_TVDAC;
connector_type = DRM_MODE_CONNECTOR_SVIDEO;
sdvo_priv->is_tv = true;
@@ -1756,30 +1843,28 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
else if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_RGB0)
{
sdvo_priv->controlled_output = SDVO_OUTPUT_RGB0;
- connector->display_info.subpixel_order = SubPixelHorizontalRGB;
encoder_type = DRM_MODE_ENCODER_DAC;
connector_type = DRM_MODE_CONNECTOR_VGA;
}
else if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_RGB1)
{
sdvo_priv->controlled_output = SDVO_OUTPUT_RGB1;
- connector->display_info.subpixel_order = SubPixelHorizontalRGB;
encoder_type = DRM_MODE_ENCODER_DAC;
connector_type = DRM_MODE_CONNECTOR_VGA;
}
else if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_LVDS0)
{
sdvo_priv->controlled_output = SDVO_OUTPUT_LVDS0;
- connector->display_info.subpixel_order = SubPixelHorizontalRGB;
encoder_type = DRM_MODE_ENCODER_LVDS;
connector_type = DRM_MODE_CONNECTOR_LVDS;
+ sdvo_priv->is_lvds = true;
}
else if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_LVDS1)
{
sdvo_priv->controlled_output = SDVO_OUTPUT_LVDS1;
- connector->display_info.subpixel_order = SubPixelHorizontalRGB;
encoder_type = DRM_MODE_ENCODER_LVDS;
connector_type = DRM_MODE_CONNECTOR_LVDS;
+ sdvo_priv->is_lvds = true;
}
else
{
@@ -1795,9 +1880,16 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
goto err_i2c;
}
+ connector = &intel_output->base;
+ drm_connector_init(dev, connector, &intel_sdvo_connector_funcs,
+ connector_type);
+ drm_connector_helper_add(connector, &intel_sdvo_connector_helper_funcs);
+ connector->interlace_allowed = 0;
+ connector->doublescan_allowed = 0;
+ connector->display_info.subpixel_order = SubPixelHorizontalRGB;
+
drm_encoder_init(dev, &intel_output->enc, &intel_sdvo_enc_funcs, encoder_type);
drm_encoder_helper_add(&intel_output->enc, &intel_sdvo_helper_funcs);
- connector->connector_type = connector_type;
drm_mode_connector_attach_encoder(&intel_output->base, &intel_output->enc);
drm_sysfs_connector_add(connector);
@@ -1829,14 +1921,13 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
sdvo_priv->caps.output_flags &
(SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
- intel_output->ddc_bus = i2cbus;
-
return true;
err_i2c:
+ if (ddcbus != NULL)
+ intel_i2c_destroy(intel_output->ddc_bus);
intel_i2c_destroy(intel_output->i2c_bus);
-err_connector:
- drm_connector_cleanup(connector);
+err_inteloutput:
kfree(intel_output);
return false;