DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 14:24:08 -08:00
/*
* Copyright ( c ) 2007 Dave Airlie < airlied @ linux . ie >
2010-07-20 15:44:45 -07:00
* Copyright ( c ) 2007 , 2010 Intel Corporation
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 14:24:08 -08:00
* 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/i2c.h>
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# include <linux/slab.h>
2018-10-10 10:52:05 +03:00
# include <drm/drm_atomic_helper.h>
drm/i915: pass ELD to HDMI/DP audio driver
Add ELD support for Intel Eaglelake, IbexPeak/Ironlake,
SandyBridge/CougarPoint and IvyBridge/PantherPoint chips.
ELD (EDID-Like Data) describes to the HDMI/DP audio driver the audio
capabilities of the plugged monitor. It's built and passed to audio
driver in 2 steps:
(1) at get_modes time, parse EDID and save ELD to drm_connector.eld[]
(2) at mode_set time, write drm_connector.eld[] to the Transcoder's hw
ELD buffer and set the ELD_valid bit to inform HDMI/DP audio driver
This patch is tested OK on G45/HDMI, IbexPeak/HDMI and IvyBridge/HDMI+DP.
Test scheme: plug in the HDMI/DP monitor, and run
cat /proc/asound/card0/eld*
to check if the monitor name, HDMI/DP type, etc. show up correctly.
Minor imperfection: the GEN5_AUD_CNTL_ST/DIP_Port_Select field always
reads 0 (reserved). Without knowing the port number, I worked it around
by setting the ELD_valid bit for ALL the three ports. It's tested to not
be a problem, because the audio driver will find invalid ELD data and
hence rightfully abort, even when it sees the ELD_valid indicator.
Thanks to Zhenyu and Pierre-Louis for a lot of valuable help and testing.
CC: Zhao Yakui <yakui.zhao@intel.com>
CC: Wang Zhenyu <zhenyu.z.wang@intel.com>
CC: Jeremy Bush <contractfrombelow@gmail.com>
CC: Christopher White <c.white@pulseforce.com>
CC: Pierre-Louis Bossart <pierre-louis.bossart@intel.com>
CC: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-09-05 14:25:34 +08:00
# include <drm/drm_edid.h>
2019-04-05 14:00:06 +03:00
2009-04-07 11:02:28 +08:00
# include "i915_drv.h"
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# include "intel_connector.h"
# include "intel_drv.h"
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 14:24:08 -08:00
2018-10-10 10:52:05 +03:00
int intel_connector_init ( struct intel_connector * connector )
{
struct intel_digital_connector_state * conn_state ;
/*
* Allocate enough memory to hold intel_digital_connector_state ,
* This might be a few bytes too many , but for connectors that don ' t
* need it we ' ll free the state and allocate a smaller one on the first
* successful commit anyway .
*/
conn_state = kzalloc ( sizeof ( * conn_state ) , GFP_KERNEL ) ;
if ( ! conn_state )
return - ENOMEM ;
__drm_atomic_helper_connector_reset ( & connector - > base ,
& conn_state - > base ) ;
return 0 ;
}
struct intel_connector * intel_connector_alloc ( void )
{
struct intel_connector * connector ;
connector = kzalloc ( sizeof ( * connector ) , GFP_KERNEL ) ;
if ( ! connector )
return NULL ;
if ( intel_connector_init ( connector ) < 0 ) {
kfree ( connector ) ;
return NULL ;
}
return connector ;
}
/*
* Free the bits allocated by intel_connector_alloc .
* This should only be used after intel_connector_alloc has returned
* successfully , and before drm_connector_init returns successfully .
* Otherwise the destroy callbacks for the connector and the state should
* take care of proper cleanup / free ( see intel_connector_destroy ) .
*/
void intel_connector_free ( struct intel_connector * connector )
{
kfree ( to_intel_digital_connector_state ( connector - > base . state ) ) ;
kfree ( connector ) ;
}
/*
* Connector type independent destroy hook for drm_connector_funcs .
*/
void intel_connector_destroy ( struct drm_connector * connector )
{
struct intel_connector * intel_connector = to_intel_connector ( connector ) ;
kfree ( intel_connector - > detect_edid ) ;
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intel_hdcp_cleanup ( intel_connector ) ;
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if ( ! IS_ERR_OR_NULL ( intel_connector - > edid ) )
kfree ( intel_connector - > edid ) ;
intel_panel_fini ( & intel_connector - > panel ) ;
drm_connector_cleanup ( connector ) ;
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if ( intel_connector - > port )
drm_dp_mst_put_port_malloc ( intel_connector - > port ) ;
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kfree ( connector ) ;
}
int intel_connector_register ( struct drm_connector * connector )
{
struct intel_connector * intel_connector = to_intel_connector ( connector ) ;
int ret ;
ret = intel_backlight_device_register ( intel_connector ) ;
if ( ret )
goto err ;
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if ( i915_inject_load_failure ( ) ) {
ret = - EFAULT ;
goto err_backlight ;
}
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return 0 ;
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err_backlight :
intel_backlight_device_unregister ( intel_connector ) ;
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err :
return ret ;
}
void intel_connector_unregister ( struct drm_connector * connector )
{
struct intel_connector * intel_connector = to_intel_connector ( connector ) ;
intel_backlight_device_unregister ( intel_connector ) ;
}
void intel_connector_attach_encoder ( struct intel_connector * connector ,
struct intel_encoder * encoder )
{
connector - > encoder = encoder ;
drm_connector_attach_encoder ( & connector - > base , & encoder - > base ) ;
}
/*
* Simple connector - > get_hw_state implementation for encoders that support only
* one connector and no cloning and hence the encoder state determines the state
* of the connector .
*/
bool intel_connector_get_hw_state ( struct intel_connector * connector )
{
enum pipe pipe = 0 ;
struct intel_encoder * encoder = connector - > encoder ;
return encoder - > get_hw_state ( encoder , & pipe ) ;
}
2018-10-16 17:50:44 +03:00
enum pipe intel_connector_get_pipe ( struct intel_connector * connector )
{
struct drm_device * dev = connector - > base . dev ;
WARN_ON ( ! drm_modeset_is_locked ( & dev - > mode_config . connection_mutex ) ) ;
if ( ! connector - > base . state - > crtc )
return INVALID_PIPE ;
return to_intel_crtc ( connector - > base . state - > crtc ) - > pipe ;
}
2012-08-13 13:22:34 +03:00
/**
* intel_connector_update_modes - update connector from edid
* @ connector : DRM connector device to use
* @ edid : previously read EDID information
*/
int intel_connector_update_modes ( struct drm_connector * connector ,
struct edid * edid )
{
int ret ;
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drm_connector_update_edid_property ( connector , edid ) ;
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ret = drm_add_edid_modes ( connector , edid ) ;
return ret ;
}
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 14:24:08 -08:00
/**
* intel_ddc_get_modes - get modelist from monitor
* @ connector : DRM connector device to use
2010-03-30 14:39:31 +08:00
* @ adapter : i2c adapter
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 14:24:08 -08:00
*
* Fetch the EDID information from @ connector using the DDC bus .
*/
2010-03-30 14:39:31 +08:00
int intel_ddc_get_modes ( struct drm_connector * connector ,
struct i2c_adapter * adapter )
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 14:24:08 -08:00
{
struct edid * edid ;
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int ret ;
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 14:24:08 -08:00
2010-03-30 14:39:31 +08:00
edid = drm_get_edid ( connector , adapter ) ;
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if ( ! edid )
return 0 ;
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 14:24:08 -08:00
2012-10-19 14:51:51 +03:00
ret = intel_connector_update_modes ( connector , edid ) ;
kfree ( edid ) ;
return ret ;
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 14:24:08 -08:00
}
2011-02-21 22:23:52 +00:00
2012-02-06 10:58:17 +01:00
static const struct drm_prop_enum_list force_audio_names [ ] = {
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{ HDMI_AUDIO_OFF_DVI , " force-dvi " } ,
{ HDMI_AUDIO_OFF , " off " } ,
{ HDMI_AUDIO_AUTO , " auto " } ,
{ HDMI_AUDIO_ON , " on " } ,
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} ;
void
intel_attach_force_audio_property ( struct drm_connector * connector )
{
struct drm_device * dev = connector - > dev ;
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struct drm_i915_private * dev_priv = to_i915 ( dev ) ;
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struct drm_property * prop ;
prop = dev_priv - > force_audio_property ;
if ( prop = = NULL ) {
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prop = drm_property_create_enum ( dev , 0 ,
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" audio " ,
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force_audio_names ,
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ARRAY_SIZE ( force_audio_names ) ) ;
if ( prop = = NULL )
return ;
dev_priv - > force_audio_property = prop ;
}
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drm_object_attach_property ( & connector - > base , prop , 0 ) ;
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}
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static const struct drm_prop_enum_list broadcast_rgb_names [ ] = {
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{ INTEL_BROADCAST_RGB_AUTO , " Automatic " } ,
{ INTEL_BROADCAST_RGB_FULL , " Full " } ,
{ INTEL_BROADCAST_RGB_LIMITED , " Limited 16:235 " } ,
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} ;
void
intel_attach_broadcast_rgb_property ( struct drm_connector * connector )
{
struct drm_device * dev = connector - > dev ;
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struct drm_i915_private * dev_priv = to_i915 ( dev ) ;
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struct drm_property * prop ;
prop = dev_priv - > broadcast_rgb_property ;
if ( prop = = NULL ) {
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prop = drm_property_create_enum ( dev , DRM_MODE_PROP_ENUM ,
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" Broadcast RGB " ,
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broadcast_rgb_names ,
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ARRAY_SIZE ( broadcast_rgb_names ) ) ;
if ( prop = = NULL )
return ;
dev_priv - > broadcast_rgb_property = prop ;
}
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drm_object_attach_property ( & connector - > base , prop , 0 ) ;
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}
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void
intel_attach_aspect_ratio_property ( struct drm_connector * connector )
{
if ( ! drm_mode_create_aspect_ratio_property ( connector - > dev ) )
drm_object_attach_property ( & connector - > base ,
connector - > dev - > mode_config . aspect_ratio_property ,
DRM_MODE_PICTURE_ASPECT_NONE ) ;
}
2019-02-19 22:43:01 +05:30
void
intel_attach_colorspace_property ( struct drm_connector * connector )
{
if ( ! drm_mode_create_colorspace_property ( connector ) )
drm_object_attach_property ( & connector - > base ,
connector - > colorspace_property , 0 ) ;
}