forked from Minki/linux
drm/i915: Choose real sdvo output according to result from detection
Baed on Eric's idea in order to handle multiple sdvo encoders we implement another approach to dynamically chose real one encoder after detection, which is contrasted with patch - drm/i915:Construct all possible sdvo outputs for sdvo encoder. Signed-off-by: Ma Ling <ling.ma@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
ling.ma@intel.com
Eric Anholt
parent
bcae2ca81c
commit
fb7a46f3cc
@ -55,6 +55,12 @@ struct intel_sdvo_priv {
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/* Pixel clock limitations reported by the SDVO device, in kHz */
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int pixel_clock_min, pixel_clock_max;
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/*
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* For multiple function SDVO device,
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* this is for current attached outputs.
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*/
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uint16_t attached_output;
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/**
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* This is set if we're going to treat the device as TV-out.
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*
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@ -114,6 +120,9 @@ struct intel_sdvo_priv {
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u32 save_SDVOX;
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};
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static bool
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intel_sdvo_output_setup(struct intel_output *intel_output, uint16_t flags);
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/**
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* Writes the SDVOB or SDVOC with the given value, but always writes both
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* SDVOB and SDVOC to work around apparent hardware issues (according to
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@ -1435,6 +1444,39 @@ void intel_sdvo_set_hotplug(struct drm_connector *connector, int on)
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intel_sdvo_read_response(intel_output, &response, 2);
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}
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static bool
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intel_sdvo_multifunc_encoder(struct intel_output *intel_output)
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{
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struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
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int caps = 0;
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if (sdvo_priv->caps.output_flags &
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(SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1))
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caps++;
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if (sdvo_priv->caps.output_flags &
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(SDVO_OUTPUT_RGB0 | SDVO_OUTPUT_RGB1))
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caps++;
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if (sdvo_priv->caps.output_flags &
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(SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_SVID0))
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caps++;
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if (sdvo_priv->caps.output_flags &
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(SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_CVBS1))
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caps++;
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if (sdvo_priv->caps.output_flags &
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(SDVO_OUTPUT_YPRPB0 | SDVO_OUTPUT_YPRPB1))
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caps++;
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if (sdvo_priv->caps.output_flags &
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(SDVO_OUTPUT_SCART0 | SDVO_OUTPUT_SCART1))
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caps++;
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if (sdvo_priv->caps.output_flags &
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(SDVO_OUTPUT_LVDS0 | SDVO_OUTPUT_LVDS1))
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caps++;
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return (caps > 1);
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}
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static void
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intel_sdvo_hdmi_sink_detect(struct drm_connector *connector)
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{
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@ -1453,23 +1495,31 @@ intel_sdvo_hdmi_sink_detect(struct drm_connector *connector)
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static enum drm_connector_status intel_sdvo_detect(struct drm_connector *connector)
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{
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u8 response[2];
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uint16_t response;
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u8 status;
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struct intel_output *intel_output = to_intel_output(connector);
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struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
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intel_sdvo_write_cmd(intel_output, SDVO_CMD_GET_ATTACHED_DISPLAYS, NULL, 0);
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status = intel_sdvo_read_response(intel_output, &response, 2);
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DRM_DEBUG("SDVO response %d %d\n", response[0], response[1]);
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DRM_DEBUG("SDVO response %d %d\n", response & 0xff, response >> 8);
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if (status != SDVO_CMD_STATUS_SUCCESS)
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return connector_status_unknown;
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if ((response[0] != 0) || (response[1] != 0)) {
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intel_sdvo_hdmi_sink_detect(connector);
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return connector_status_connected;
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} else
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if (response == 0)
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return connector_status_disconnected;
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if (intel_sdvo_multifunc_encoder(intel_output) &&
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sdvo_priv->attached_output != response) {
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if (sdvo_priv->controlled_output != response &&
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intel_sdvo_output_setup(intel_output, response) != true)
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return connector_status_unknown;
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sdvo_priv->attached_output = response;
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}
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intel_sdvo_hdmi_sink_detect(connector);
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return connector_status_connected;
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}
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static void intel_sdvo_get_ddc_modes(struct drm_connector *connector)
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@ -1866,16 +1916,101 @@ intel_sdvo_get_slave_addr(struct drm_device *dev, int output_device)
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return 0x72;
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}
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static bool
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intel_sdvo_output_setup(struct intel_output *intel_output, uint16_t flags)
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{
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struct drm_connector *connector = &intel_output->base;
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struct drm_encoder *encoder = &intel_output->enc;
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struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
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bool ret = true, registered = false;
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sdvo_priv->is_tv = false;
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intel_output->needs_tv_clock = false;
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sdvo_priv->is_lvds = false;
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if (device_is_registered(&connector->kdev)) {
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drm_sysfs_connector_remove(connector);
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registered = true;
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}
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if (flags &
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(SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)) {
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if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_TMDS0)
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sdvo_priv->controlled_output = SDVO_OUTPUT_TMDS0;
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else
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sdvo_priv->controlled_output = SDVO_OUTPUT_TMDS1;
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encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
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connector->connector_type = DRM_MODE_CONNECTOR_DVID;
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if (intel_sdvo_get_supp_encode(intel_output,
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&sdvo_priv->encode) &&
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intel_sdvo_get_digital_encoding_mode(intel_output) &&
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sdvo_priv->is_hdmi) {
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/* enable hdmi encoding mode if supported */
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intel_sdvo_set_encode(intel_output, SDVO_ENCODE_HDMI);
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intel_sdvo_set_colorimetry(intel_output,
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SDVO_COLORIMETRY_RGB256);
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connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
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}
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} else if (flags & SDVO_OUTPUT_SVID0) {
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sdvo_priv->controlled_output = SDVO_OUTPUT_SVID0;
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encoder->encoder_type = DRM_MODE_ENCODER_TVDAC;
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connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO;
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sdvo_priv->is_tv = true;
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intel_output->needs_tv_clock = true;
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} else if (flags & SDVO_OUTPUT_RGB0) {
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sdvo_priv->controlled_output = SDVO_OUTPUT_RGB0;
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encoder->encoder_type = DRM_MODE_ENCODER_DAC;
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connector->connector_type = DRM_MODE_CONNECTOR_VGA;
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} else if (flags & SDVO_OUTPUT_RGB1) {
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sdvo_priv->controlled_output = SDVO_OUTPUT_RGB1;
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encoder->encoder_type = DRM_MODE_ENCODER_DAC;
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connector->connector_type = DRM_MODE_CONNECTOR_VGA;
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} else if (flags & SDVO_OUTPUT_LVDS0) {
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sdvo_priv->controlled_output = SDVO_OUTPUT_LVDS0;
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encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
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connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
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sdvo_priv->is_lvds = true;
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} else if (flags & SDVO_OUTPUT_LVDS1) {
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sdvo_priv->controlled_output = SDVO_OUTPUT_LVDS1;
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encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
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connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
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sdvo_priv->is_lvds = true;
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} else {
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unsigned char bytes[2];
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sdvo_priv->controlled_output = 0;
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memcpy(bytes, &sdvo_priv->caps.output_flags, 2);
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DRM_DEBUG_KMS(I915_SDVO,
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"%s: Unknown SDVO output type (0x%02x%02x)\n",
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SDVO_NAME(sdvo_priv),
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bytes[0], bytes[1]);
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ret = false;
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}
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if (ret && registered)
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ret = drm_sysfs_connector_add(connector) == 0 ? true : false;
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return ret;
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}
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bool intel_sdvo_init(struct drm_device *dev, int output_device)
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{
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struct drm_connector *connector;
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struct intel_output *intel_output;
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struct intel_sdvo_priv *sdvo_priv;
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int connector_type;
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u8 ch[0x40];
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int i;
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int encoder_type;
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intel_output = kcalloc(sizeof(struct intel_output)+sizeof(struct intel_sdvo_priv), 1, GFP_KERNEL);
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if (!intel_output) {
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@ -1925,88 +2060,28 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
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intel_output->ddc_bus->algo = &intel_sdvo_i2c_bit_algo;
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/* In defaut case sdvo lvds is false */
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sdvo_priv->is_lvds = false;
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intel_sdvo_get_capabilities(intel_output, &sdvo_priv->caps);
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if (sdvo_priv->caps.output_flags &
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(SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)) {
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if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_TMDS0)
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sdvo_priv->controlled_output = SDVO_OUTPUT_TMDS0;
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else
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sdvo_priv->controlled_output = SDVO_OUTPUT_TMDS1;
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encoder_type = DRM_MODE_ENCODER_TMDS;
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connector_type = DRM_MODE_CONNECTOR_DVID;
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if (intel_sdvo_get_supp_encode(intel_output,
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&sdvo_priv->encode) &&
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intel_sdvo_get_digital_encoding_mode(intel_output) &&
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sdvo_priv->is_hdmi) {
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/* enable hdmi encoding mode if supported */
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intel_sdvo_set_encode(intel_output, SDVO_ENCODE_HDMI);
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intel_sdvo_set_colorimetry(intel_output,
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SDVO_COLORIMETRY_RGB256);
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connector_type = DRM_MODE_CONNECTOR_HDMIA;
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}
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}
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else if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_SVID0)
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{
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sdvo_priv->controlled_output = SDVO_OUTPUT_SVID0;
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encoder_type = DRM_MODE_ENCODER_TVDAC;
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connector_type = DRM_MODE_CONNECTOR_SVIDEO;
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sdvo_priv->is_tv = true;
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intel_output->needs_tv_clock = true;
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}
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else if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_RGB0)
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{
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sdvo_priv->controlled_output = SDVO_OUTPUT_RGB0;
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encoder_type = DRM_MODE_ENCODER_DAC;
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connector_type = DRM_MODE_CONNECTOR_VGA;
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}
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else if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_RGB1)
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{
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sdvo_priv->controlled_output = SDVO_OUTPUT_RGB1;
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encoder_type = DRM_MODE_ENCODER_DAC;
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connector_type = DRM_MODE_CONNECTOR_VGA;
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}
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else if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_LVDS0)
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{
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sdvo_priv->controlled_output = SDVO_OUTPUT_LVDS0;
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encoder_type = DRM_MODE_ENCODER_LVDS;
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connector_type = DRM_MODE_CONNECTOR_LVDS;
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sdvo_priv->is_lvds = true;
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}
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else if (sdvo_priv->caps.output_flags & SDVO_OUTPUT_LVDS1)
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{
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sdvo_priv->controlled_output = SDVO_OUTPUT_LVDS1;
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encoder_type = DRM_MODE_ENCODER_LVDS;
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connector_type = DRM_MODE_CONNECTOR_LVDS;
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sdvo_priv->is_lvds = true;
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}
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else
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{
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unsigned char bytes[2];
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sdvo_priv->controlled_output = 0;
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memcpy (bytes, &sdvo_priv->caps.output_flags, 2);
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DRM_DEBUG_KMS(I915_SDVO,
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"%s: Unknown SDVO output type (0x%02x%02x)\n",
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SDVO_NAME(sdvo_priv),
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bytes[0], bytes[1]);
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encoder_type = DRM_MODE_ENCODER_NONE;
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connector_type = DRM_MODE_CONNECTOR_Unknown;
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if (intel_sdvo_output_setup(intel_output,
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sdvo_priv->caps.output_flags) != true) {
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DRM_DEBUG("SDVO output failed to setup on SDVO%c\n",
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output_device == SDVOB ? 'B' : 'C');
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goto err_i2c;
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}
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connector = &intel_output->base;
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drm_connector_init(dev, connector, &intel_sdvo_connector_funcs,
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connector_type);
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connector->connector_type);
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drm_connector_helper_add(connector, &intel_sdvo_connector_helper_funcs);
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connector->interlace_allowed = 0;
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connector->doublescan_allowed = 0;
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connector->display_info.subpixel_order = SubPixelHorizontalRGB;
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drm_encoder_init(dev, &intel_output->enc, &intel_sdvo_enc_funcs, encoder_type);
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drm_encoder_init(dev, &intel_output->enc,
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&intel_sdvo_enc_funcs, intel_output->enc.encoder_type);
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drm_encoder_helper_add(&intel_output->enc, &intel_sdvo_helper_funcs);
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drm_mode_connector_attach_encoder(&intel_output->base, &intel_output->enc);
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