Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
[deliverable/linux.git] / drivers / gpu / drm / i915 / intel_sdvo.c
index 9913651c1e1703d78dba7eb34ab3fdd82135a3e3..9a00adb3a50896033302bb70b6d715de72408dce 100644 (file)
@@ -36,7 +36,7 @@
 #include "intel_sdvo_regs.h"
 
 #undef SDVO_DEBUG
-
+#define I915_SDVO      "i915_sdvo"
 struct intel_sdvo_priv {
        struct intel_i2c_chan *i2c_bus;
        int slaveaddr;
@@ -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
@@ -273,20 +277,21 @@ static void intel_sdvo_debug_write(struct intel_output *intel_output, u8 cmd,
        struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
        int i;
 
-       printk(KERN_DEBUG "%s: W: %02X ", SDVO_NAME(sdvo_priv), cmd);
+       DRM_DEBUG_KMS(I915_SDVO, "%s: W: %02X ",
+                               SDVO_NAME(sdvo_priv), cmd);
        for (i = 0; i < args_len; i++)
-               printk(KERN_DEBUG "%02X ", ((u8 *)args)[i]);
+               DRM_LOG_KMS("%02X ", ((u8 *)args)[i]);
        for (; i < 8; i++)
-               printk(KERN_DEBUG "   ");
+               DRM_LOG_KMS("   ");
        for (i = 0; i < sizeof(sdvo_cmd_names) / sizeof(sdvo_cmd_names[0]); i++) {
                if (cmd == sdvo_cmd_names[i].cmd) {
-                       printk(KERN_DEBUG "(%s)", sdvo_cmd_names[i].name);
+                       DRM_LOG_KMS("(%s)", sdvo_cmd_names[i].name);
                        break;
                }
        }
        if (i == sizeof(sdvo_cmd_names)/ sizeof(sdvo_cmd_names[0]))
-               printk(KERN_DEBUG "(%02X)", cmd);
-       printk(KERN_DEBUG "\n");
+               DRM_LOG_KMS("(%02X)", cmd);
+       DRM_LOG_KMS("\n");
 }
 #else
 #define intel_sdvo_debug_write(o, c, a, l)
@@ -325,16 +330,16 @@ static void intel_sdvo_debug_response(struct intel_output *intel_output,
        struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
        int i;
 
-       printk(KERN_DEBUG "%s: R: ", SDVO_NAME(sdvo_priv));
+       DRM_DEBUG_KMS(I915_SDVO, "%s: R: ", SDVO_NAME(sdvo_priv));
        for (i = 0; i < response_len; i++)
-               printk(KERN_DEBUG "%02X ", ((u8 *)response)[i]);
+               DRM_LOG_KMS("%02X ", ((u8 *)response)[i]);
        for (; i < 8; i++)
-               printk(KERN_DEBUG "   ");
+               DRM_LOG_KMS("   ");
        if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP)
-               printk(KERN_DEBUG "(%s)", cmd_status_names[status]);
+               DRM_LOG_KMS("(%s)", cmd_status_names[status]);
        else
-               printk(KERN_DEBUG "(??? %d)", status);
-       printk(KERN_DEBUG "\n");
+               DRM_LOG_KMS("(??? %d)", status);
+       DRM_LOG_KMS("\n");
 }
 #else
 #define intel_sdvo_debug_response(o, r, l, s)
@@ -1398,10 +1403,8 @@ 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 +1546,37 @@ 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 +1584,8 @@ 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 +1600,9 @@ 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);
@@ -1578,6 +1617,7 @@ static const struct drm_encoder_helper_funcs intel_sdvo_helper_funcs = {
 };
 
 static const struct drm_connector_funcs intel_sdvo_connector_funcs = {
+       .dpms = drm_helper_connector_dpms,
        .save = intel_sdvo_save,
        .restore = intel_sdvo_restore,
        .detect = intel_sdvo_detect,
@@ -1660,33 +1700,107 @@ 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,
+};
+
+static u8
+intel_sdvo_get_slave_addr(struct drm_device *dev, int output_device)
+{
+       struct drm_i915_private *dev_priv = dev->dev_private;
+       struct sdvo_device_mapping *my_mapping, *other_mapping;
+
+       if (output_device == SDVOB) {
+               my_mapping = &dev_priv->sdvo_mappings[0];
+               other_mapping = &dev_priv->sdvo_mappings[1];
+       } else {
+               my_mapping = &dev_priv->sdvo_mappings[1];
+               other_mapping = &dev_priv->sdvo_mappings[0];
+       }
+
+       /* If the BIOS described our SDVO device, take advantage of it. */
+       if (my_mapping->slave_addr)
+               return my_mapping->slave_addr;
+
+       /* If the BIOS only described a different SDVO device, use the
+        * address that it isn't using.
+        */
+       if (other_mapping->slave_addr) {
+               if (other_mapping->slave_addr == 0x70)
+                       return 0x72;
+               else
+                       return 0x70;
+       }
+
+       /* No SDVO device info is found for another DVO port,
+        * so use mapping assumption we had before BIOS parsing.
+        */
+       if (output_device == SDVOB)
+               return 0x70;
+       else
+               return 0x72;
+}
+
 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;
        int encoder_type, output_id;
+       u8 slave_addr;
 
        intel_output = kcalloc(sizeof(struct intel_output)+sizeof(struct intel_sdvo_priv), 1, GFP_KERNEL);
        if (!intel_output) {
                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");
@@ -1694,32 +1808,47 @@ 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;
 
+       slave_addr = intel_sdvo_get_slave_addr(dev, output_device);
        sdvo_priv->i2c_bus = i2cbus;
 
        if (output_device == SDVOB) {
                output_id = 1;
-               sdvo_priv->i2c_bus->slave_addr = 0x38;
        } else {
                output_id = 2;
-               sdvo_priv->i2c_bus->slave_addr = 0x39;
        }
-
+       sdvo_priv->i2c_bus->slave_addr = slave_addr >> 1;
        sdvo_priv->output_device = 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])) {
-                       DRM_DEBUG("No SDVO device found on SDVO%c\n",
-                                 output_device == SDVOB ? 'B' : 'C');
+                       DRM_DEBUG_KMS(I915_SDVO,
+                                       "No SDVO device found on SDVO%c\n",
+                                       output_device == SDVOB ? 'B' : 'C');
                        goto err_i2c;
                }
        }
 
+       /* 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 +1858,6 @@ 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 +1875,6 @@ 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 +1883,28 @@ 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
        {
@@ -1787,17 +1912,25 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
 
                sdvo_priv->controlled_output = 0;
                memcpy (bytes, &sdvo_priv->caps.output_flags, 2);
-               DRM_DEBUG("%s: Unknown SDVO output type (0x%02x%02x)\n",
-                         SDVO_NAME(sdvo_priv),
-                         bytes[0], bytes[1]);
+               DRM_DEBUG_KMS(I915_SDVO,
+                               "%s: Unknown SDVO output type (0x%02x%02x)\n",
+                                 SDVO_NAME(sdvo_priv),
+                                 bytes[0], bytes[1]);
                encoder_type = DRM_MODE_ENCODER_NONE;
                connector_type = DRM_MODE_CONNECTOR_Unknown;
                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);
@@ -1812,31 +1945,30 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
                                               &sdvo_priv->pixel_clock_max);
 
 
-       DRM_DEBUG("%s device VID/DID: %02X:%02X.%02X, "
-                 "clock range %dMHz - %dMHz, "
-                 "input 1: %c, input 2: %c, "
-                 "output 1: %c, output 2: %c\n",
-                 SDVO_NAME(sdvo_priv),
-                 sdvo_priv->caps.vendor_id, sdvo_priv->caps.device_id,
-                 sdvo_priv->caps.device_rev_id,
-                 sdvo_priv->pixel_clock_min / 1000,
-                 sdvo_priv->pixel_clock_max / 1000,
-                 (sdvo_priv->caps.sdvo_inputs_mask & 0x1) ? 'Y' : 'N',
-                 (sdvo_priv->caps.sdvo_inputs_mask & 0x2) ? 'Y' : 'N',
-                 /* check currently supported outputs */
-                 sdvo_priv->caps.output_flags &
+       DRM_DEBUG_KMS(I915_SDVO, "%s device VID/DID: %02X:%02X.%02X, "
+                       "clock range %dMHz - %dMHz, "
+                       "input 1: %c, input 2: %c, "
+                       "output 1: %c, output 2: %c\n",
+                       SDVO_NAME(sdvo_priv),
+                       sdvo_priv->caps.vendor_id, sdvo_priv->caps.device_id,
+                       sdvo_priv->caps.device_rev_id,
+                       sdvo_priv->pixel_clock_min / 1000,
+                       sdvo_priv->pixel_clock_max / 1000,
+                       (sdvo_priv->caps.sdvo_inputs_mask & 0x1) ? 'Y' : 'N',
+                       (sdvo_priv->caps.sdvo_inputs_mask & 0x2) ? 'Y' : 'N',
+                       /* check currently supported outputs */
+                       sdvo_priv->caps.output_flags &
                        (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_RGB0) ? 'Y' : 'N',
-                 sdvo_priv->caps.output_flags &
+                       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;
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