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authorDave Airlie <airlied@redhat.com>2008-07-09 14:53:47 +1000
committerDave Airlie <airlied@redhat.com>2008-07-09 14:53:47 +1000
commit2556341f8baf0e0b7b5f7843135e43e662751af0 (patch)
tree84b591787aa036959e56c490b38dbf9e191c76dd /linux-core/nv50_connector.c
parent38a5f6686cd38d5204e240f30006538bcf70f5ac (diff)
parent0b7d9a97bd2383fe4382fc1b1b266542020f0c4e (diff)
Merge remote branch 'origin/modesetting-101' into modesetting-gem
Diffstat (limited to 'linux-core/nv50_connector.c')
-rw-r--r--linux-core/nv50_connector.c207
1 files changed, 207 insertions, 0 deletions
diff --git a/linux-core/nv50_connector.c b/linux-core/nv50_connector.c
new file mode 100644
index 00000000..ac5194c0
--- /dev/null
+++ b/linux-core/nv50_connector.c
@@ -0,0 +1,207 @@
+/*
+ * Copyright (C) 2008 Maarten Maathuis.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include "nv50_connector.h"
+
+static struct nv50_output *nv50_connector_to_output(struct nv50_connector *connector, bool digital)
+{
+ struct nv50_display *display = nv50_get_display(connector->dev);
+ struct nv50_output *output = NULL;
+ bool digital_possible = false;
+ bool analog_possible = false;
+
+ switch (connector->type) {
+ case CONNECTOR_VGA:
+ case CONNECTOR_TV:
+ analog_possible = true;
+ break;
+ case CONNECTOR_DVI_I:
+ analog_possible = true;
+ digital_possible = true;
+ break;
+ case CONNECTOR_DVI_D:
+ case CONNECTOR_LVDS:
+ digital_possible = true;
+ break;
+ default:
+ break;
+ }
+
+ /* Return early on bad situations. */
+ if (!analog_possible && !digital_possible)
+ return NULL;
+
+ if (!analog_possible && !digital)
+ return NULL;
+
+ if (!digital_possible && digital)
+ return NULL;
+
+ list_for_each_entry(output, &display->outputs, item) {
+ if (connector->bus != output->bus)
+ continue;
+ if (digital && output->type == OUTPUT_TMDS)
+ return output;
+ if (digital && output->type == OUTPUT_LVDS)
+ return output;
+ if (!digital && output->type == OUTPUT_DAC)
+ return output;
+ if (!digital && output->type == OUTPUT_TV)
+ return output;
+ }
+
+ return NULL;
+}
+
+static bool nv50_connector_detect(struct nv50_connector *connector)
+{
+ /* kindly borrrowed from the intel driver, hope it works. */
+ uint8_t out_buf[] = { 0x0, 0x0};
+ uint8_t buf[2];
+ int ret;
+ struct i2c_msg msgs[] = {
+ {
+ .addr = 0x50,
+ .flags = 0,
+ .len = 1,
+ .buf = out_buf,
+ },
+ {
+ .addr = 0x50,
+ .flags = I2C_M_RD,
+ .len = 1,
+ .buf = buf,
+ }
+ };
+
+ NV50_DEBUG("\n");
+
+ if (!connector->i2c_chan)
+ return false;
+
+ ret = i2c_transfer(&connector->i2c_chan->adapter, msgs, 2);
+ DRM_INFO("I2C detect returned %d\n", ret);
+
+ if (ret == 2)
+ return true;
+
+ return false;
+}
+
+static int nv50_connector_destroy(struct nv50_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nv50_display *display = nv50_get_display(dev);
+
+ NV50_DEBUG("\n");
+
+ if (!display || !connector)
+ return -EINVAL;
+
+ list_del(&connector->item);
+
+ if (connector->i2c_chan)
+ nv50_i2c_channel_destroy(connector->i2c_chan);
+
+ if (dev_priv->free_connector)
+ dev_priv->free_connector(connector);
+
+ return 0;
+}
+
+int nv50_connector_create(struct drm_device *dev, int bus, int i2c_index, int type)
+{
+ struct nv50_connector *connector = NULL;
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nv50_display *display = NULL;
+
+ NV50_DEBUG("\n");
+
+ /* This allows the public layer to do it's thing. */
+ if (dev_priv->alloc_connector)
+ connector = dev_priv->alloc_connector(dev);
+
+ if (!connector)
+ return -ENOMEM;
+
+ connector->dev = dev;
+
+ display = nv50_get_display(dev);
+ if (!display)
+ goto out;
+
+ if (type == CONNECTOR_UNKNOWN)
+ goto out;
+
+ list_add_tail(&connector->item, &display->connectors);
+
+ connector->bus = bus;
+ connector->type = type;
+
+ switch (type) {
+ case CONNECTOR_VGA:
+ DRM_INFO("Detected a VGA connector\n");
+ break;
+ case CONNECTOR_DVI_D:
+ DRM_INFO("Detected a DVI-D connector\n");
+ break;
+ case CONNECTOR_DVI_I:
+ DRM_INFO("Detected a DVI-I connector\n");
+ break;
+ case CONNECTOR_LVDS:
+ DRM_INFO("Detected a LVDS connector\n");
+ break;
+ case CONNECTOR_TV:
+ DRM_INFO("Detected a TV connector\n");
+ break;
+ default:
+ DRM_ERROR("Unknown connector, this is not good.\n");
+ break;
+ }
+
+ /* some reasonable defaults */
+ if (type == CONNECTOR_DVI_D || type == CONNECTOR_DVI_I || type == CONNECTOR_LVDS)
+ connector->scaling_mode = SCALE_FULLSCREEN;
+ else
+ connector->scaling_mode = SCALE_PANEL;
+
+ if (i2c_index < 0xf)
+ connector->i2c_chan = nv50_i2c_channel_create(dev, i2c_index);
+
+ /* set function pointers */
+ connector->detect = nv50_connector_detect;
+ connector->destroy = nv50_connector_destroy;
+ connector->to_output = nv50_connector_to_output;
+
+ return 0;
+
+out:
+ if (dev_priv->free_connector)
+ dev_priv->free_connector(connector);
+
+ return -EINVAL;
+}