Commit 11c1a9ec authored by Maarten Lankhorst's avatar Maarten Lankhorst

drm/i915: Add plumbing for digital connector state, v3.

Some atomic properties are common between the various kinds of
connectors, for example a lot of them use panel fitting mode.
It makes sense to put a lot of it in a common place, so each
connector can use it while they're being converted.

Implement the properties required for the connectors:
- scaling mode property
- force audio property
- broadcast rgb
- aspect ratio

While at it, make clear that intel_digital_connector_atomic_get_property
is a hack that has to be removed when all connector properties
are converted to atomic.

Changes since v1:
- Scaling mode and aspect ratio are partly handled in core now.
Changes since v2:
- Split out the scaling mode / aspect ratio changes to a preparation
  patch.
- Use mode_changed for panel fitter, changes to this property
  are checked by fastset.
- Allowed_scaling_modes is removed, handled through core now.
Signed-off-by: default avatarMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-6-maarten.lankhorst@linux.intel.com
parent 8b45330a
......@@ -36,7 +36,7 @@
#include "intel_drv.h"
/**
* intel_connector_atomic_get_property - fetch connector property value
* intel_connector_atomic_get_property - fetch legacy connector property value
* @connector: connector to fetch property for
* @state: state containing the property value
* @property: property to look up
......@@ -45,9 +45,11 @@
* The DRM core does not store shadow copies of properties for
* atomic-capable drivers. This entrypoint is used to fetch
* the current value of a driver-specific connector property.
*
* This is a intermediary solution until all connectors are
* converted to support full atomic properties.
*/
int
intel_connector_atomic_get_property(struct drm_connector *connector,
int intel_connector_atomic_get_property(struct drm_connector *connector,
const struct drm_connector_state *state,
struct drm_property *property,
uint64_t *val)
......@@ -73,7 +75,122 @@ intel_connector_atomic_get_property(struct drm_connector *connector,
return -EINVAL;
}
/*
/**
* intel_digital_connector_atomic_get_property - hook for connector->atomic_get_property.
* @connector: Connector to get the property for.
* @state: Connector state to retrieve the property from.
* @property: Property to retrieve.
* @val: Return value for the property.
*
* Returns the atomic property value for a digital connector.
*/
int intel_digital_connector_atomic_get_property(struct drm_connector *connector,
const struct drm_connector_state *state,
struct drm_property *property,
uint64_t *val)
{
struct drm_device *dev = connector->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_digital_connector_state *intel_conn_state =
to_intel_digital_connector_state(state);
if (property == dev_priv->force_audio_property)
*val = intel_conn_state->force_audio;
else if (property == dev_priv->broadcast_rgb_property)
*val = intel_conn_state->broadcast_rgb;
else {
DRM_DEBUG_ATOMIC("Unknown property %s\n", property->name);
return -EINVAL;
}
return 0;
}
/**
* intel_digital_connector_atomic_set_property - hook for connector->atomic_set_property.
* @connector: Connector to set the property for.
* @state: Connector state to set the property on.
* @property: Property to set.
* @val: New value for the property.
*
* Sets the atomic property value for a digital connector.
*/
int intel_digital_connector_atomic_set_property(struct drm_connector *connector,
struct drm_connector_state *state,
struct drm_property *property,
uint64_t val)
{
struct drm_device *dev = connector->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_digital_connector_state *intel_conn_state =
to_intel_digital_connector_state(state);
if (property == dev_priv->force_audio_property) {
intel_conn_state->force_audio = val;
return 0;
}
if (property == dev_priv->broadcast_rgb_property) {
intel_conn_state->broadcast_rgb = val;
return 0;
}
DRM_DEBUG_ATOMIC("Unknown property %s\n", property->name);
return -EINVAL;
}
int intel_digital_connector_atomic_check(struct drm_connector *conn,
struct drm_connector_state *new_state)
{
struct intel_digital_connector_state *new_conn_state =
to_intel_digital_connector_state(new_state);
struct drm_connector_state *old_state =
drm_atomic_get_old_connector_state(new_state->state, conn);
struct intel_digital_connector_state *old_conn_state =
to_intel_digital_connector_state(old_state);
struct drm_crtc_state *crtc_state;
if (!new_state->crtc)
return 0;
crtc_state = drm_atomic_get_new_crtc_state(new_state->state, new_state->crtc);
/*
* These properties are handled by fastset, and might not end
* up in a modeset.
*/
if (new_conn_state->force_audio != old_conn_state->force_audio ||
new_conn_state->broadcast_rgb != old_conn_state->broadcast_rgb ||
new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio ||
new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode)
crtc_state->mode_changed = true;
return 0;
}
/**
* intel_digital_connector_duplicate_state - duplicate connector state
* @connector: digital connector
*
* Allocates and returns a copy of the connector state (both common and
* digital connector specific) for the specified connector.
*
* Returns: The newly allocated connector state, or NULL on failure.
*/
struct drm_connector_state *
intel_digital_connector_duplicate_state(struct drm_connector *connector)
{
struct intel_digital_connector_state *state;
state = kmemdup(connector->state, sizeof(*state), GFP_KERNEL);
if (!state)
return NULL;
__drm_atomic_helper_connector_duplicate_state(connector, &state->base);
return &state->base;
}
/**
* intel_crtc_duplicate_state - duplicate crtc state
* @crtc: drm crtc
*
......
......@@ -5974,11 +5974,21 @@ static void intel_connector_verify_state(struct drm_crtc_state *crtc_state,
int intel_connector_init(struct intel_connector *connector)
{
drm_atomic_helper_connector_reset(&connector->base);
struct intel_digital_connector_state *conn_state;
if (!connector->base.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
* succesful 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;
}
......
......@@ -330,6 +330,15 @@ struct intel_connector {
struct work_struct modeset_retry_work;
};
struct intel_digital_connector_state {
struct drm_connector_state base;
enum hdmi_force_audio force_audio;
int broadcast_rgb;
};
#define to_intel_digital_connector_state(x) container_of(x, struct intel_digital_connector_state, base)
struct dpll {
/* given values */
int n;
......@@ -1912,6 +1921,20 @@ int intel_connector_atomic_get_property(struct drm_connector *connector,
const struct drm_connector_state *state,
struct drm_property *property,
uint64_t *val);
int intel_digital_connector_atomic_get_property(struct drm_connector *connector,
const struct drm_connector_state *state,
struct drm_property *property,
uint64_t *val);
int intel_digital_connector_atomic_set_property(struct drm_connector *connector,
struct drm_connector_state *state,
struct drm_property *property,
uint64_t val);
int intel_digital_connector_atomic_check(struct drm_connector *conn,
struct drm_connector_state *new_state);
struct drm_connector_state *
intel_digital_connector_duplicate_state(struct drm_connector *connector);
struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc);
void intel_crtc_destroy_state(struct drm_crtc *crtc,
struct drm_crtc_state *state);
......
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