147 lines
4.0 KiB
C
147 lines
4.0 KiB
C
/*
|
|
* Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
|
|
* Copyright (c) 2007, 2010 Intel Corporation
|
|
* Jesse Barnes <jesse.barnes@intel.com>
|
|
*
|
|
* 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 AUTHORS OR COPYRIGHT HOLDERS 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 <linux/slab.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/fb.h>
|
|
#include <drm/drm_edid.h>
|
|
#include "drmP.h"
|
|
#include "intel_drv.h"
|
|
#include "i915_drv.h"
|
|
|
|
/**
|
|
* intel_ddc_probe
|
|
*
|
|
*/
|
|
bool intel_ddc_probe(struct intel_encoder *intel_encoder, int ddc_bus)
|
|
{
|
|
struct drm_i915_private *dev_priv = intel_encoder->base.dev->dev_private;
|
|
u8 out_buf[] = { 0x0, 0x0};
|
|
u8 buf[2];
|
|
struct i2c_msg msgs[] = {
|
|
{
|
|
.addr = 0x50,
|
|
.flags = 0,
|
|
.len = 1,
|
|
.buf = out_buf,
|
|
},
|
|
{
|
|
.addr = 0x50,
|
|
.flags = I2C_M_RD,
|
|
.len = 1,
|
|
.buf = buf,
|
|
}
|
|
};
|
|
|
|
return i2c_transfer(&dev_priv->gmbus[ddc_bus].adapter, msgs, 2) == 2;
|
|
}
|
|
|
|
/**
|
|
* intel_ddc_get_modes - get modelist from monitor
|
|
* @connector: DRM connector device to use
|
|
* @adapter: i2c adapter
|
|
*
|
|
* Fetch the EDID information from @connector using the DDC bus.
|
|
*/
|
|
int intel_ddc_get_modes(struct drm_connector *connector,
|
|
struct i2c_adapter *adapter)
|
|
{
|
|
struct edid *edid;
|
|
int ret = 0;
|
|
|
|
edid = drm_get_edid(connector, adapter);
|
|
if (edid) {
|
|
drm_mode_connector_update_edid_property(connector, edid);
|
|
ret = drm_add_edid_modes(connector, edid);
|
|
drm_edid_to_eld(connector, edid);
|
|
connector->display_info.raw_edid = NULL;
|
|
kfree(edid);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const char *force_audio_names[] = {
|
|
"off",
|
|
"auto",
|
|
"on",
|
|
};
|
|
|
|
void
|
|
intel_attach_force_audio_property(struct drm_connector *connector)
|
|
{
|
|
struct drm_device *dev = connector->dev;
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
struct drm_property *prop;
|
|
int i;
|
|
#if 0
|
|
prop = dev_priv->force_audio_property;
|
|
if (prop == NULL) {
|
|
prop = drm_property_create(dev, DRM_MODE_PROP_ENUM,
|
|
"audio",
|
|
ARRAY_SIZE(force_audio_names));
|
|
if (prop == NULL)
|
|
return;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(force_audio_names); i++)
|
|
drm_property_add_enum(prop, i, i-1, force_audio_names[i]);
|
|
|
|
dev_priv->force_audio_property = prop;
|
|
}
|
|
drm_connector_attach_property(connector, prop, 0);
|
|
#endif
|
|
}
|
|
|
|
static const char *broadcast_rgb_names[] = {
|
|
"Full",
|
|
"Limited 16:235",
|
|
};
|
|
|
|
void
|
|
intel_attach_broadcast_rgb_property(struct drm_connector *connector)
|
|
{
|
|
struct drm_device *dev = connector->dev;
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
struct drm_property *prop;
|
|
int i;
|
|
#if 0
|
|
prop = dev_priv->broadcast_rgb_property;
|
|
if (prop == NULL) {
|
|
prop = drm_property_create(dev, DRM_MODE_PROP_ENUM,
|
|
"Broadcast RGB",
|
|
ARRAY_SIZE(broadcast_rgb_names));
|
|
if (prop == NULL)
|
|
return;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(broadcast_rgb_names); i++)
|
|
drm_property_add_enum(prop, i, i, broadcast_rgb_names[i]);
|
|
|
|
dev_priv->broadcast_rgb_property = prop;
|
|
}
|
|
|
|
drm_connector_attach_property(connector, prop, 0);
|
|
#endif
|
|
}
|