0,0 → 1,2477 |
/* |
* Copyright (c) 2006-2008 Intel Corporation |
* Copyright (c) 2007 Dave Airlie <airlied@linux.ie> |
* Copyright (c) 2008 Red Hat Inc. |
* |
* DRM core CRTC related functions |
* |
* Permission to use, copy, modify, distribute, and sell this software and its |
* documentation for any purpose is hereby granted without fee, provided that |
* the above copyright notice appear in all copies and that both that copyright |
* notice and this permission notice appear in supporting documentation, and |
* that the name of the copyright holders not be used in advertising or |
* publicity pertaining to distribution of the software without specific, |
* written prior permission. The copyright holders make no representations |
* about the suitability of this software for any purpose. It is provided "as |
* is" without express or implied warranty. |
* |
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
* OF THIS SOFTWARE. |
* |
* Authors: |
* Keith Packard |
* Eric Anholt <eric@anholt.net> |
* Dave Airlie <airlied@linux.ie> |
* Jesse Barnes <jesse.barnes@intel.com> |
*/ |
#include <list.h> |
#include "drm.h" |
#include "drmP.h" |
#include "drm_crtc.h" |
|
struct drm_prop_enum_list { |
int type; |
char *name; |
}; |
|
/* Avoid boilerplate. I'm tired of typing. */ |
#define DRM_ENUM_NAME_FN(fnname, list) \ |
char *fnname(int val) \ |
{ \ |
int i; \ |
for (i = 0; i < ARRAY_SIZE(list); i++) { \ |
if (list[i].type == val) \ |
return list[i].name; \ |
} \ |
return "(unknown)"; \ |
} |
|
/* |
* Global properties |
*/ |
static struct drm_prop_enum_list drm_dpms_enum_list[] = |
{ { DRM_MODE_DPMS_ON, "On" }, |
{ DRM_MODE_DPMS_STANDBY, "Standby" }, |
{ DRM_MODE_DPMS_SUSPEND, "Suspend" }, |
{ DRM_MODE_DPMS_OFF, "Off" } |
}; |
|
DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) |
|
/* |
* Optional properties |
*/ |
static struct drm_prop_enum_list drm_scaling_mode_enum_list[] = |
{ |
{ DRM_MODE_SCALE_NON_GPU, "Non-GPU" }, |
{ DRM_MODE_SCALE_FULLSCREEN, "Fullscreen" }, |
{ DRM_MODE_SCALE_NO_SCALE, "No scale" }, |
{ DRM_MODE_SCALE_ASPECT, "Aspect" }, |
}; |
|
static struct drm_prop_enum_list drm_dithering_mode_enum_list[] = |
{ |
{ DRM_MODE_DITHERING_OFF, "Off" }, |
{ DRM_MODE_DITHERING_ON, "On" }, |
}; |
|
/* |
* Non-global properties, but "required" for certain connectors. |
*/ |
static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = |
{ |
{ DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
{ DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ |
{ DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ |
}; |
|
DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) |
|
static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = |
{ |
{ DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
{ DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ |
{ DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ |
}; |
|
DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, |
drm_dvi_i_subconnector_enum_list) |
|
static struct drm_prop_enum_list drm_tv_select_enum_list[] = |
{ |
{ DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
{ DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ |
{ DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ |
{ DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ |
}; |
|
DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) |
|
static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = |
{ |
{ DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
{ DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ |
{ DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ |
{ DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ |
}; |
|
DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, |
drm_tv_subconnector_enum_list) |
|
struct drm_conn_prop_enum_list { |
int type; |
char *name; |
int count; |
}; |
|
/* |
* Connector and encoder types. |
*/ |
static struct drm_conn_prop_enum_list drm_connector_enum_list[] = |
{ { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 }, |
{ DRM_MODE_CONNECTOR_VGA, "VGA", 0 }, |
{ DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 }, |
{ DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 }, |
{ DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 }, |
{ DRM_MODE_CONNECTOR_Composite, "Composite", 0 }, |
{ DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 }, |
{ DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 }, |
{ DRM_MODE_CONNECTOR_Component, "Component", 0 }, |
{ DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN", 0 }, |
{ DRM_MODE_CONNECTOR_DisplayPort, "DisplayPort", 0 }, |
{ DRM_MODE_CONNECTOR_HDMIA, "HDMI Type A", 0 }, |
{ DRM_MODE_CONNECTOR_HDMIB, "HDMI Type B", 0 }, |
}; |
|
static struct drm_prop_enum_list drm_encoder_enum_list[] = |
{ { DRM_MODE_ENCODER_NONE, "None" }, |
{ DRM_MODE_ENCODER_DAC, "DAC" }, |
{ DRM_MODE_ENCODER_TMDS, "TMDS" }, |
{ DRM_MODE_ENCODER_LVDS, "LVDS" }, |
{ DRM_MODE_ENCODER_TVDAC, "TV" }, |
}; |
|
char *drm_get_encoder_name(struct drm_encoder *encoder) |
{ |
static char buf[32]; |
|
snprintf(buf, 32, "%s-%d", |
drm_encoder_enum_list[encoder->encoder_type].name, |
encoder->base.id); |
return buf; |
} |
|
char *drm_get_connector_name(struct drm_connector *connector) |
{ |
static char buf[32]; |
|
snprintf(buf, 32, "%s-%d", |
drm_connector_enum_list[connector->connector_type].name, |
connector->connector_type_id); |
return buf; |
} |
EXPORT_SYMBOL(drm_get_connector_name); |
|
char *drm_get_connector_status_name(enum drm_connector_status status) |
{ |
if (status == connector_status_connected) |
return "connected"; |
else if (status == connector_status_disconnected) |
return "disconnected"; |
else |
return "unknown"; |
} |
|
/** |
* drm_mode_object_get - allocate a new identifier |
* @dev: DRM device |
* @ptr: object pointer, used to generate unique ID |
* @type: object type |
* |
* LOCKING: |
* |
* Create a unique identifier based on @ptr in @dev's identifier space. Used |
* for tracking modes, CRTCs and connectors. |
* |
* RETURNS: |
* New unique (relative to other objects in @dev) integer identifier for the |
* object. |
*/ |
static int drm_mode_object_get(struct drm_device *dev, |
struct drm_mode_object *obj, uint32_t obj_type) |
{ |
int new_id = 0; |
int ret; |
|
again: |
if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) { |
DRM_ERROR("Ran out memory getting a mode number\n"); |
return -EINVAL; |
} |
|
// mutex_lock(&dev->mode_config.idr_mutex); |
ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id); |
// mutex_unlock(&dev->mode_config.idr_mutex); |
if (ret == -EAGAIN) |
goto again; |
|
obj->id = new_id; |
obj->type = obj_type; |
return 0; |
} |
|
/** |
* drm_mode_object_put - free an identifer |
* @dev: DRM device |
* @id: ID to free |
* |
* LOCKING: |
* Caller must hold DRM mode_config lock. |
* |
* Free @id from @dev's unique identifier pool. |
*/ |
static void drm_mode_object_put(struct drm_device *dev, |
struct drm_mode_object *object) |
{ |
// mutex_lock(&dev->mode_config.idr_mutex); |
idr_remove(&dev->mode_config.crtc_idr, object->id); |
// mutex_unlock(&dev->mode_config.idr_mutex); |
} |
|
void *drm_mode_object_find(struct drm_device *dev, uint32_t id, uint32_t type) |
{ |
struct drm_mode_object *obj = NULL; |
|
// mutex_lock(&dev->mode_config.idr_mutex); |
obj = idr_find(&dev->mode_config.crtc_idr, id); |
if (!obj || (obj->type != type) || (obj->id != id)) |
obj = NULL; |
// mutex_unlock(&dev->mode_config.idr_mutex); |
|
return obj; |
} |
EXPORT_SYMBOL(drm_mode_object_find); |
|
|
#if 0 |
|
/** |
* drm_crtc_from_fb - find the CRTC structure associated with an fb |
* @dev: DRM device |
* @fb: framebuffer in question |
* |
* LOCKING: |
* Caller must hold mode_config lock. |
* |
* Find CRTC in the mode_config structure that matches @fb. |
* |
* RETURNS: |
* Pointer to the CRTC or NULL if it wasn't found. |
*/ |
struct drm_crtc *drm_crtc_from_fb(struct drm_device *dev, |
struct drm_framebuffer *fb) |
{ |
struct drm_crtc *crtc; |
|
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
if (crtc->fb == fb) |
return crtc; |
} |
return NULL; |
} |
|
/** |
* drm_framebuffer_init - initialize a framebuffer |
* @dev: DRM device |
* |
* LOCKING: |
* Caller must hold mode config lock. |
* |
* Allocates an ID for the framebuffer's parent mode object, sets its mode |
* functions & device file and adds it to the master fd list. |
* |
* RETURNS: |
* Zero on success, error code on falure. |
*/ |
int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, |
const struct drm_framebuffer_funcs *funcs) |
{ |
int ret; |
|
ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
if (ret) { |
return ret; |
} |
|
fb->dev = dev; |
fb->funcs = funcs; |
dev->mode_config.num_fb++; |
list_add(&fb->head, &dev->mode_config.fb_list); |
|
return 0; |
} |
EXPORT_SYMBOL(drm_framebuffer_init); |
|
/** |
* drm_framebuffer_cleanup - remove a framebuffer object |
* @fb: framebuffer to remove |
* |
* LOCKING: |
* Caller must hold mode config lock. |
* |
* Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes |
* it, setting it to NULL. |
*/ |
void drm_framebuffer_cleanup(struct drm_framebuffer *fb) |
{ |
struct drm_device *dev = fb->dev; |
struct drm_crtc *crtc; |
|
/* remove from any CRTC */ |
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
if (crtc->fb == fb) |
crtc->fb = NULL; |
} |
|
drm_mode_object_put(dev, &fb->base); |
list_del(&fb->head); |
dev->mode_config.num_fb--; |
} |
EXPORT_SYMBOL(drm_framebuffer_cleanup); |
|
|
#endif |
|
/** |
* drm_crtc_init - Initialise a new CRTC object |
* @dev: DRM device |
* @crtc: CRTC object to init |
* @funcs: callbacks for the new CRTC |
* |
* LOCKING: |
* Caller must hold mode config lock. |
* |
* Inits a new object created as base part of an driver crtc object. |
*/ |
void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc, |
const struct drm_crtc_funcs *funcs) |
{ |
crtc->dev = dev; |
crtc->funcs = funcs; |
|
// mutex_lock(&dev->mode_config.mutex); |
drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
|
list_add_tail(&crtc->head, &dev->mode_config.crtc_list); |
dev->mode_config.num_crtc++; |
// mutex_unlock(&dev->mode_config.mutex); |
} |
EXPORT_SYMBOL(drm_crtc_init); |
|
/** |
* drm_crtc_cleanup - Cleans up the core crtc usage. |
* @crtc: CRTC to cleanup |
* |
* LOCKING: |
* Caller must hold mode config lock. |
* |
* Cleanup @crtc. Removes from drm modesetting space |
* does NOT free object, caller does that. |
*/ |
void drm_crtc_cleanup(struct drm_crtc *crtc) |
{ |
struct drm_device *dev = crtc->dev; |
|
if (crtc->gamma_store) { |
kfree(crtc->gamma_store); |
crtc->gamma_store = NULL; |
} |
|
drm_mode_object_put(dev, &crtc->base); |
list_del(&crtc->head); |
dev->mode_config.num_crtc--; |
} |
EXPORT_SYMBOL(drm_crtc_cleanup); |
|
/** |
* drm_mode_probed_add - add a mode to a connector's probed mode list |
* @connector: connector the new mode |
* @mode: mode data |
* |
* LOCKING: |
* Caller must hold mode config lock. |
* |
* Add @mode to @connector's mode list for later use. |
*/ |
void drm_mode_probed_add(struct drm_connector *connector, |
struct drm_display_mode *mode) |
{ |
list_add(&mode->head, &connector->probed_modes); |
} |
EXPORT_SYMBOL(drm_mode_probed_add); |
|
/** |
* drm_mode_remove - remove and free a mode |
* @connector: connector list to modify |
* @mode: mode to remove |
* |
* LOCKING: |
* Caller must hold mode config lock. |
* |
* Remove @mode from @connector's mode list, then free it. |
*/ |
void drm_mode_remove(struct drm_connector *connector, |
struct drm_display_mode *mode) |
{ |
list_del(&mode->head); |
kfree(mode); |
} |
EXPORT_SYMBOL(drm_mode_remove); |
|
/** |
* drm_connector_init - Init a preallocated connector |
* @dev: DRM device |
* @connector: the connector to init |
* @funcs: callbacks for this connector |
* @name: user visible name of the connector |
* |
* LOCKING: |
* Caller must hold @dev's mode_config lock. |
* |
* Initialises a preallocated connector. Connectors should be |
* subclassed as part of driver connector objects. |
*/ |
void drm_connector_init(struct drm_device *dev, |
struct drm_connector *connector, |
const struct drm_connector_funcs *funcs, |
int connector_type) |
{ |
// mutex_lock(&dev->mode_config.mutex); |
|
connector->dev = dev; |
connector->funcs = funcs; |
drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR); |
connector->connector_type = connector_type; |
connector->connector_type_id = |
++drm_connector_enum_list[connector_type].count; /* TODO */ |
INIT_LIST_HEAD(&connector->user_modes); |
INIT_LIST_HEAD(&connector->probed_modes); |
INIT_LIST_HEAD(&connector->modes); |
connector->edid_blob_ptr = NULL; |
|
list_add_tail(&connector->head, &dev->mode_config.connector_list); |
dev->mode_config.num_connector++; |
|
drm_connector_attach_property(connector, |
dev->mode_config.edid_property, 0); |
|
drm_connector_attach_property(connector, |
dev->mode_config.dpms_property, 0); |
|
// mutex_unlock(&dev->mode_config.mutex); |
} |
EXPORT_SYMBOL(drm_connector_init); |
|
/** |
* drm_connector_cleanup - cleans up an initialised connector |
* @connector: connector to cleanup |
* |
* LOCKING: |
* Caller must hold @dev's mode_config lock. |
* |
* Cleans up the connector but doesn't free the object. |
*/ |
void drm_connector_cleanup(struct drm_connector *connector) |
{ |
struct drm_device *dev = connector->dev; |
struct drm_display_mode *mode, *t; |
|
list_for_each_entry_safe(mode, t, &connector->probed_modes, head) |
drm_mode_remove(connector, mode); |
|
list_for_each_entry_safe(mode, t, &connector->modes, head) |
drm_mode_remove(connector, mode); |
|
list_for_each_entry_safe(mode, t, &connector->user_modes, head) |
drm_mode_remove(connector, mode); |
|
// mutex_lock(&dev->mode_config.mutex); |
drm_mode_object_put(dev, &connector->base); |
list_del(&connector->head); |
// mutex_unlock(&dev->mode_config.mutex); |
} |
EXPORT_SYMBOL(drm_connector_cleanup); |
|
void drm_encoder_init(struct drm_device *dev, |
struct drm_encoder *encoder, |
const struct drm_encoder_funcs *funcs, |
int encoder_type) |
{ |
// mutex_lock(&dev->mode_config.mutex); |
|
encoder->dev = dev; |
|
drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
encoder->encoder_type = encoder_type; |
encoder->funcs = funcs; |
|
list_add_tail(&encoder->head, &dev->mode_config.encoder_list); |
dev->mode_config.num_encoder++; |
|
// mutex_unlock(&dev->mode_config.mutex); |
} |
EXPORT_SYMBOL(drm_encoder_init); |
|
void drm_encoder_cleanup(struct drm_encoder *encoder) |
{ |
struct drm_device *dev = encoder->dev; |
// mutex_lock(&dev->mode_config.mutex); |
drm_mode_object_put(dev, &encoder->base); |
list_del(&encoder->head); |
// mutex_unlock(&dev->mode_config.mutex); |
} |
EXPORT_SYMBOL(drm_encoder_cleanup); |
|
/** |
* drm_mode_create - create a new display mode |
* @dev: DRM device |
* |
* LOCKING: |
* Caller must hold DRM mode_config lock. |
* |
* Create a new drm_display_mode, give it an ID, and return it. |
* |
* RETURNS: |
* Pointer to new mode on success, NULL on error. |
*/ |
struct drm_display_mode *drm_mode_create(struct drm_device *dev) |
{ |
struct drm_display_mode *nmode; |
|
nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL); |
if (!nmode) |
return NULL; |
|
drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE); |
return nmode; |
} |
EXPORT_SYMBOL(drm_mode_create); |
|
/** |
* drm_mode_destroy - remove a mode |
* @dev: DRM device |
* @mode: mode to remove |
* |
* LOCKING: |
* Caller must hold mode config lock. |
* |
* Free @mode's unique identifier, then free it. |
*/ |
void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode) |
{ |
drm_mode_object_put(dev, &mode->base); |
|
kfree(mode); |
} |
EXPORT_SYMBOL(drm_mode_destroy); |
|
static int drm_mode_create_standard_connector_properties(struct drm_device *dev) |
{ |
struct drm_property *edid; |
struct drm_property *dpms; |
int i; |
|
/* |
* Standard properties (apply to all connectors) |
*/ |
edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | |
DRM_MODE_PROP_IMMUTABLE, |
"EDID", 0); |
dev->mode_config.edid_property = edid; |
|
dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM, |
"DPMS", ARRAY_SIZE(drm_dpms_enum_list)); |
for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++) |
drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type, |
drm_dpms_enum_list[i].name); |
dev->mode_config.dpms_property = dpms; |
|
return 0; |
} |
|
/** |
* drm_mode_create_dvi_i_properties - create DVI-I specific connector properties |
* @dev: DRM device |
* |
* Called by a driver the first time a DVI-I connector is made. |
*/ |
int drm_mode_create_dvi_i_properties(struct drm_device *dev) |
{ |
struct drm_property *dvi_i_selector; |
struct drm_property *dvi_i_subconnector; |
int i; |
|
if (dev->mode_config.dvi_i_select_subconnector_property) |
return 0; |
|
dvi_i_selector = |
drm_property_create(dev, DRM_MODE_PROP_ENUM, |
"select subconnector", |
ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++) |
drm_property_add_enum(dvi_i_selector, i, |
drm_dvi_i_select_enum_list[i].type, |
drm_dvi_i_select_enum_list[i].name); |
dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
|
dvi_i_subconnector = |
drm_property_create(dev, DRM_MODE_PROP_ENUM | |
DRM_MODE_PROP_IMMUTABLE, |
"subconnector", |
ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++) |
drm_property_add_enum(dvi_i_subconnector, i, |
drm_dvi_i_subconnector_enum_list[i].type, |
drm_dvi_i_subconnector_enum_list[i].name); |
dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
|
return 0; |
} |
EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); |
|
/** |
* drm_create_tv_properties - create TV specific connector properties |
* @dev: DRM device |
* @num_modes: number of different TV formats (modes) supported |
* @modes: array of pointers to strings containing name of each format |
* |
* Called by a driver's TV initialization routine, this function creates |
* the TV specific connector properties for a given device. Caller is |
* responsible for allocating a list of format names and passing them to |
* this routine. |
*/ |
int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, |
char *modes[]) |
{ |
struct drm_property *tv_selector; |
struct drm_property *tv_subconnector; |
int i; |
|
if (dev->mode_config.tv_select_subconnector_property) |
return 0; |
|
/* |
* Basic connector properties |
*/ |
tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM, |
"select subconnector", |
ARRAY_SIZE(drm_tv_select_enum_list)); |
for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++) |
drm_property_add_enum(tv_selector, i, |
drm_tv_select_enum_list[i].type, |
drm_tv_select_enum_list[i].name); |
dev->mode_config.tv_select_subconnector_property = tv_selector; |
|
tv_subconnector = |
drm_property_create(dev, DRM_MODE_PROP_ENUM | |
DRM_MODE_PROP_IMMUTABLE, "subconnector", |
ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++) |
drm_property_add_enum(tv_subconnector, i, |
drm_tv_subconnector_enum_list[i].type, |
drm_tv_subconnector_enum_list[i].name); |
dev->mode_config.tv_subconnector_property = tv_subconnector; |
|
/* |
* Other, TV specific properties: margins & TV modes. |
*/ |
dev->mode_config.tv_left_margin_property = |
drm_property_create(dev, DRM_MODE_PROP_RANGE, |
"left margin", 2); |
dev->mode_config.tv_left_margin_property->values[0] = 0; |
dev->mode_config.tv_left_margin_property->values[1] = 100; |
|
dev->mode_config.tv_right_margin_property = |
drm_property_create(dev, DRM_MODE_PROP_RANGE, |
"right margin", 2); |
dev->mode_config.tv_right_margin_property->values[0] = 0; |
dev->mode_config.tv_right_margin_property->values[1] = 100; |
|
dev->mode_config.tv_top_margin_property = |
drm_property_create(dev, DRM_MODE_PROP_RANGE, |
"top margin", 2); |
dev->mode_config.tv_top_margin_property->values[0] = 0; |
dev->mode_config.tv_top_margin_property->values[1] = 100; |
|
dev->mode_config.tv_bottom_margin_property = |
drm_property_create(dev, DRM_MODE_PROP_RANGE, |
"bottom margin", 2); |
dev->mode_config.tv_bottom_margin_property->values[0] = 0; |
dev->mode_config.tv_bottom_margin_property->values[1] = 100; |
|
dev->mode_config.tv_mode_property = |
drm_property_create(dev, DRM_MODE_PROP_ENUM, |
"mode", num_modes); |
for (i = 0; i < num_modes; i++) |
drm_property_add_enum(dev->mode_config.tv_mode_property, i, |
i, modes[i]); |
|
return 0; |
} |
EXPORT_SYMBOL(drm_mode_create_tv_properties); |
|
/** |
* drm_mode_create_scaling_mode_property - create scaling mode property |
* @dev: DRM device |
* |
* Called by a driver the first time it's needed, must be attached to desired |
* connectors. |
*/ |
int drm_mode_create_scaling_mode_property(struct drm_device *dev) |
{ |
struct drm_property *scaling_mode; |
int i; |
|
if (dev->mode_config.scaling_mode_property) |
return 0; |
|
scaling_mode = |
drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode", |
ARRAY_SIZE(drm_scaling_mode_enum_list)); |
for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++) |
drm_property_add_enum(scaling_mode, i, |
drm_scaling_mode_enum_list[i].type, |
drm_scaling_mode_enum_list[i].name); |
|
dev->mode_config.scaling_mode_property = scaling_mode; |
|
return 0; |
} |
EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); |
|
/** |
* drm_mode_create_dithering_property - create dithering property |
* @dev: DRM device |
* |
* Called by a driver the first time it's needed, must be attached to desired |
* connectors. |
*/ |
int drm_mode_create_dithering_property(struct drm_device *dev) |
{ |
struct drm_property *dithering_mode; |
int i; |
|
if (dev->mode_config.dithering_mode_property) |
return 0; |
|
dithering_mode = |
drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering", |
ARRAY_SIZE(drm_dithering_mode_enum_list)); |
for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++) |
drm_property_add_enum(dithering_mode, i, |
drm_dithering_mode_enum_list[i].type, |
drm_dithering_mode_enum_list[i].name); |
dev->mode_config.dithering_mode_property = dithering_mode; |
|
return 0; |
} |
EXPORT_SYMBOL(drm_mode_create_dithering_property); |
|
/** |
* drm_mode_config_init - initialize DRM mode_configuration structure |
* @dev: DRM device |
* |
* LOCKING: |
* None, should happen single threaded at init time. |
* |
* Initialize @dev's mode_config structure, used for tracking the graphics |
* configuration of @dev. |
*/ |
void drm_mode_config_init(struct drm_device *dev) |
{ |
// mutex_init(&dev->mode_config.mutex); |
// mutex_init(&dev->mode_config.idr_mutex); |
INIT_LIST_HEAD(&dev->mode_config.fb_list); |
INIT_LIST_HEAD(&dev->mode_config.fb_kernel_list); |
INIT_LIST_HEAD(&dev->mode_config.crtc_list); |
INIT_LIST_HEAD(&dev->mode_config.connector_list); |
INIT_LIST_HEAD(&dev->mode_config.encoder_list); |
INIT_LIST_HEAD(&dev->mode_config.property_list); |
INIT_LIST_HEAD(&dev->mode_config.property_blob_list); |
idr_init(&dev->mode_config.crtc_idr); |
|
// mutex_lock(&dev->mode_config.mutex); |
drm_mode_create_standard_connector_properties(dev); |
// mutex_unlock(&dev->mode_config.mutex); |
|
/* Just to be sure */ |
dev->mode_config.num_fb = 0; |
dev->mode_config.num_connector = 0; |
dev->mode_config.num_crtc = 0; |
dev->mode_config.num_encoder = 0; |
} |
EXPORT_SYMBOL(drm_mode_config_init); |
|
int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) |
{ |
uint32_t total_objects = 0; |
|
total_objects += dev->mode_config.num_crtc; |
total_objects += dev->mode_config.num_connector; |
total_objects += dev->mode_config.num_encoder; |
|
if (total_objects == 0) |
return -EINVAL; |
|
group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); |
if (!group->id_list) |
return -ENOMEM; |
|
group->num_crtcs = 0; |
group->num_connectors = 0; |
group->num_encoders = 0; |
return 0; |
} |
|
int drm_mode_group_init_legacy_group(struct drm_device *dev, |
struct drm_mode_group *group) |
{ |
struct drm_crtc *crtc; |
struct drm_encoder *encoder; |
struct drm_connector *connector; |
int ret; |
|
if ((ret = drm_mode_group_init(dev, group))) |
return ret; |
|
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) |
group->id_list[group->num_crtcs++] = crtc->base.id; |
|
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) |
group->id_list[group->num_crtcs + group->num_encoders++] = |
encoder->base.id; |
|
list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
group->id_list[group->num_crtcs + group->num_encoders + |
group->num_connectors++] = connector->base.id; |
|
return 0; |
} |
|
/** |
* drm_mode_config_cleanup - free up DRM mode_config info |
* @dev: DRM device |
* |
* LOCKING: |
* Caller must hold mode config lock. |
* |
* Free up all the connectors and CRTCs associated with this DRM device, then |
* free up the framebuffers and associated buffer objects. |
* |
* FIXME: cleanup any dangling user buffer objects too |
*/ |
void drm_mode_config_cleanup(struct drm_device *dev) |
{ |
struct drm_connector *connector, *ot; |
struct drm_crtc *crtc, *ct; |
struct drm_encoder *encoder, *enct; |
struct drm_framebuffer *fb, *fbt; |
struct drm_property *property, *pt; |
|
list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, |
head) { |
encoder->funcs->destroy(encoder); |
} |
|
list_for_each_entry_safe(connector, ot, |
&dev->mode_config.connector_list, head) { |
connector->funcs->destroy(connector); |
} |
|
list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, |
head) { |
drm_property_destroy(dev, property); |
} |
|
list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { |
fb->funcs->destroy(fb); |
} |
|
list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { |
crtc->funcs->destroy(crtc); |
} |
|
} |
EXPORT_SYMBOL(drm_mode_config_cleanup); |
|
/** |
* drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo |
* @out: drm_mode_modeinfo struct to return to the user |
* @in: drm_display_mode to use |
* |
* LOCKING: |
* None. |
* |
* Convert a drm_display_mode into a drm_mode_modeinfo structure to return to |
* the user. |
*/ |
void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, |
struct drm_display_mode *in) |
{ |
out->clock = in->clock; |
out->hdisplay = in->hdisplay; |
out->hsync_start = in->hsync_start; |
out->hsync_end = in->hsync_end; |
out->htotal = in->htotal; |
out->hskew = in->hskew; |
out->vdisplay = in->vdisplay; |
out->vsync_start = in->vsync_start; |
out->vsync_end = in->vsync_end; |
out->vtotal = in->vtotal; |
out->vscan = in->vscan; |
out->vrefresh = in->vrefresh; |
out->flags = in->flags; |
out->type = in->type; |
strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); |
out->name[DRM_DISPLAY_MODE_LEN-1] = 0; |
} |
|
/** |
* drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode |
* @out: drm_display_mode to return to the user |
* @in: drm_mode_modeinfo to use |
* |
* LOCKING: |
* None. |
* |
* Convert a drm_mode_modeinfo into a drm_display_mode structure to return to |
* the caller. |
*/ |
void drm_crtc_convert_umode(struct drm_display_mode *out, |
struct drm_mode_modeinfo *in) |
{ |
out->clock = in->clock; |
out->hdisplay = in->hdisplay; |
out->hsync_start = in->hsync_start; |
out->hsync_end = in->hsync_end; |
out->htotal = in->htotal; |
out->hskew = in->hskew; |
out->vdisplay = in->vdisplay; |
out->vsync_start = in->vsync_start; |
out->vsync_end = in->vsync_end; |
out->vtotal = in->vtotal; |
out->vscan = in->vscan; |
out->vrefresh = in->vrefresh; |
out->flags = in->flags; |
out->type = in->type; |
strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); |
out->name[DRM_DISPLAY_MODE_LEN-1] = 0; |
} |
|
|
#if 0 |
/** |
* drm_mode_getresources - get graphics configuration |
* @inode: inode from the ioctl |
* @filp: file * from the ioctl |
* @cmd: cmd from ioctl |
* @arg: arg from ioctl |
* |
* LOCKING: |
* Takes mode config lock. |
* |
* Construct a set of configuration description structures and return |
* them to the user, including CRTC, connector and framebuffer configuration. |
* |
* Called by the user via ioctl. |
* |
* RETURNS: |
* Zero on success, errno on failure. |
*/ |
int drm_mode_getresources(struct drm_device *dev, void *data, |
struct drm_file *file_priv) |
{ |
struct drm_mode_card_res *card_res = data; |
struct list_head *lh; |
struct drm_framebuffer *fb; |
struct drm_connector *connector; |
struct drm_crtc *crtc; |
struct drm_encoder *encoder; |
int ret = 0; |
int connector_count = 0; |
int crtc_count = 0; |
int fb_count = 0; |
int encoder_count = 0; |
int copied = 0, i; |
uint32_t __user *fb_id; |
uint32_t __user *crtc_id; |
uint32_t __user *connector_id; |
uint32_t __user *encoder_id; |
struct drm_mode_group *mode_group; |
|
mutex_lock(&dev->mode_config.mutex); |
|
/* |
* For the non-control nodes we need to limit the list of resources |
* by IDs in the group list for this node |
*/ |
list_for_each(lh, &file_priv->fbs) |
fb_count++; |
|
mode_group = &file_priv->master->minor->mode_group; |
if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { |
|
list_for_each(lh, &dev->mode_config.crtc_list) |
crtc_count++; |
|
list_for_each(lh, &dev->mode_config.connector_list) |
connector_count++; |
|
list_for_each(lh, &dev->mode_config.encoder_list) |
encoder_count++; |
} else { |
|
crtc_count = mode_group->num_crtcs; |
connector_count = mode_group->num_connectors; |
encoder_count = mode_group->num_encoders; |
} |
|
card_res->max_height = dev->mode_config.max_height; |
card_res->min_height = dev->mode_config.min_height; |
card_res->max_width = dev->mode_config.max_width; |
card_res->min_width = dev->mode_config.min_width; |
|
/* handle this in 4 parts */ |
/* FBs */ |
if (card_res->count_fbs >= fb_count) { |
copied = 0; |
fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; |
list_for_each_entry(fb, &file_priv->fbs, head) { |
if (put_user(fb->base.id, fb_id + copied)) { |
ret = -EFAULT; |
goto out; |
} |
copied++; |
} |
} |
card_res->count_fbs = fb_count; |
|
/* CRTCs */ |
if (card_res->count_crtcs >= crtc_count) { |
copied = 0; |
crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; |
if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { |
list_for_each_entry(crtc, &dev->mode_config.crtc_list, |
head) { |
DRM_DEBUG("CRTC ID is %d\n", crtc->base.id); |
if (put_user(crtc->base.id, crtc_id + copied)) { |
ret = -EFAULT; |
goto out; |
} |
copied++; |
} |
} else { |
for (i = 0; i < mode_group->num_crtcs; i++) { |
if (put_user(mode_group->id_list[i], |
crtc_id + copied)) { |
ret = -EFAULT; |
goto out; |
} |
copied++; |
} |
} |
} |
card_res->count_crtcs = crtc_count; |
|
/* Encoders */ |
if (card_res->count_encoders >= encoder_count) { |
copied = 0; |
encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; |
if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { |
list_for_each_entry(encoder, |
&dev->mode_config.encoder_list, |
head) { |
DRM_DEBUG("ENCODER ID is %d\n", |
encoder->base.id); |
if (put_user(encoder->base.id, encoder_id + |
copied)) { |
ret = -EFAULT; |
goto out; |
} |
copied++; |
} |
} else { |
for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { |
if (put_user(mode_group->id_list[i], |
encoder_id + copied)) { |
ret = -EFAULT; |
goto out; |
} |
copied++; |
} |
|
} |
} |
card_res->count_encoders = encoder_count; |
|
/* Connectors */ |
if (card_res->count_connectors >= connector_count) { |
copied = 0; |
connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; |
if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { |
list_for_each_entry(connector, |
&dev->mode_config.connector_list, |
head) { |
DRM_DEBUG("CONNECTOR ID is %d\n", |
connector->base.id); |
if (put_user(connector->base.id, |
connector_id + copied)) { |
ret = -EFAULT; |
goto out; |
} |
copied++; |
} |
} else { |
int start = mode_group->num_crtcs + |
mode_group->num_encoders; |
for (i = start; i < start + mode_group->num_connectors; i++) { |
if (put_user(mode_group->id_list[i], |
connector_id + copied)) { |
ret = -EFAULT; |
goto out; |
} |
copied++; |
} |
} |
} |
card_res->count_connectors = connector_count; |
|
DRM_DEBUG("Counted %d %d %d\n", card_res->count_crtcs, |
card_res->count_connectors, card_res->count_encoders); |
|
out: |
mutex_unlock(&dev->mode_config.mutex); |
return ret; |
} |
|
|
/** |
* drm_mode_getcrtc - get CRTC configuration |
* @inode: inode from the ioctl |
* @filp: file * from the ioctl |
* @cmd: cmd from ioctl |
* @arg: arg from ioctl |
* |
* LOCKING: |
* Caller? (FIXME) |
* |
* Construct a CRTC configuration structure to return to the user. |
* |
* Called by the user via ioctl. |
* |
* RETURNS: |
* Zero on success, errno on failure. |
*/ |
int drm_mode_getcrtc(struct drm_device *dev, |
void *data, struct drm_file *file_priv) |
{ |
struct drm_mode_crtc *crtc_resp = data; |
struct drm_crtc *crtc; |
struct drm_mode_object *obj; |
int ret = 0; |
|
mutex_lock(&dev->mode_config.mutex); |
|
obj = drm_mode_object_find(dev, crtc_resp->crtc_id, |
DRM_MODE_OBJECT_CRTC); |
if (!obj) { |
ret = -EINVAL; |
goto out; |
} |
crtc = obj_to_crtc(obj); |
|
crtc_resp->x = crtc->x; |
crtc_resp->y = crtc->y; |
crtc_resp->gamma_size = crtc->gamma_size; |
if (crtc->fb) |
crtc_resp->fb_id = crtc->fb->base.id; |
else |
crtc_resp->fb_id = 0; |
|
if (crtc->enabled) { |
|
drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); |
crtc_resp->mode_valid = 1; |
|
} else { |
crtc_resp->mode_valid = 0; |
} |
|
out: |
mutex_unlock(&dev->mode_config.mutex); |
return ret; |
} |
|
/** |
* drm_mode_getconnector - get connector configuration |
* @inode: inode from the ioctl |
* @filp: file * from the ioctl |
* @cmd: cmd from ioctl |
* @arg: arg from ioctl |
* |
* LOCKING: |
* Caller? (FIXME) |
* |
* Construct a connector configuration structure to return to the user. |
* |
* Called by the user via ioctl. |
* |
* RETURNS: |
* Zero on success, errno on failure. |
*/ |
int drm_mode_getconnector(struct drm_device *dev, void *data, |
struct drm_file *file_priv) |
{ |
struct drm_mode_get_connector *out_resp = data; |
struct drm_mode_object *obj; |
struct drm_connector *connector; |
struct drm_display_mode *mode; |
int mode_count = 0; |
int props_count = 0; |
int encoders_count = 0; |
int ret = 0; |
int copied = 0; |
int i; |
struct drm_mode_modeinfo u_mode; |
struct drm_mode_modeinfo __user *mode_ptr; |
uint32_t __user *prop_ptr; |
uint64_t __user *prop_values; |
uint32_t __user *encoder_ptr; |
|
memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
|
DRM_DEBUG("connector id %d:\n", out_resp->connector_id); |
|
mutex_lock(&dev->mode_config.mutex); |
|
obj = drm_mode_object_find(dev, out_resp->connector_id, |
DRM_MODE_OBJECT_CONNECTOR); |
if (!obj) { |
ret = -EINVAL; |
goto out; |
} |
connector = obj_to_connector(obj); |
|
for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { |
if (connector->property_ids[i] != 0) { |
props_count++; |
} |
} |
|
for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
if (connector->encoder_ids[i] != 0) { |
encoders_count++; |
} |
} |
|
if (out_resp->count_modes == 0) { |
connector->funcs->fill_modes(connector, |
dev->mode_config.max_width, |
dev->mode_config.max_height); |
} |
|
/* delayed so we get modes regardless of pre-fill_modes state */ |
list_for_each_entry(mode, &connector->modes, head) |
mode_count++; |
|
out_resp->connector_id = connector->base.id; |
out_resp->connector_type = connector->connector_type; |
out_resp->connector_type_id = connector->connector_type_id; |
out_resp->mm_width = connector->display_info.width_mm; |
out_resp->mm_height = connector->display_info.height_mm; |
out_resp->subpixel = connector->display_info.subpixel_order; |
out_resp->connection = connector->status; |
if (connector->encoder) |
out_resp->encoder_id = connector->encoder->base.id; |
else |
out_resp->encoder_id = 0; |
|
/* |
* This ioctl is called twice, once to determine how much space is |
* needed, and the 2nd time to fill it. |
*/ |
if ((out_resp->count_modes >= mode_count) && mode_count) { |
copied = 0; |
mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr; |
list_for_each_entry(mode, &connector->modes, head) { |
drm_crtc_convert_to_umode(&u_mode, mode); |
if (copy_to_user(mode_ptr + copied, |
&u_mode, sizeof(u_mode))) { |
ret = -EFAULT; |
goto out; |
} |
copied++; |
} |
} |
out_resp->count_modes = mode_count; |
|
if ((out_resp->count_props >= props_count) && props_count) { |
copied = 0; |
prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr); |
prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr); |
for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { |
if (connector->property_ids[i] != 0) { |
if (put_user(connector->property_ids[i], |
prop_ptr + copied)) { |
ret = -EFAULT; |
goto out; |
} |
|
if (put_user(connector->property_values[i], |
prop_values + copied)) { |
ret = -EFAULT; |
goto out; |
} |
copied++; |
} |
} |
} |
out_resp->count_props = props_count; |
|
if ((out_resp->count_encoders >= encoders_count) && encoders_count) { |
copied = 0; |
encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr); |
for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
if (connector->encoder_ids[i] != 0) { |
if (put_user(connector->encoder_ids[i], |
encoder_ptr + copied)) { |
ret = -EFAULT; |
goto out; |
} |
copied++; |
} |
} |
} |
out_resp->count_encoders = encoders_count; |
|
out: |
mutex_unlock(&dev->mode_config.mutex); |
return ret; |
} |
|
int drm_mode_getencoder(struct drm_device *dev, void *data, |
struct drm_file *file_priv) |
{ |
struct drm_mode_get_encoder *enc_resp = data; |
struct drm_mode_object *obj; |
struct drm_encoder *encoder; |
int ret = 0; |
|
mutex_lock(&dev->mode_config.mutex); |
obj = drm_mode_object_find(dev, enc_resp->encoder_id, |
DRM_MODE_OBJECT_ENCODER); |
if (!obj) { |
ret = -EINVAL; |
goto out; |
} |
encoder = obj_to_encoder(obj); |
|
if (encoder->crtc) |
enc_resp->crtc_id = encoder->crtc->base.id; |
else |
enc_resp->crtc_id = 0; |
enc_resp->encoder_type = encoder->encoder_type; |
enc_resp->encoder_id = encoder->base.id; |
enc_resp->possible_crtcs = encoder->possible_crtcs; |
enc_resp->possible_clones = encoder->possible_clones; |
|
out: |
mutex_unlock(&dev->mode_config.mutex); |
return ret; |
} |
|
/** |
* drm_mode_setcrtc - set CRTC configuration |
* @inode: inode from the ioctl |
* @filp: file * from the ioctl |
* @cmd: cmd from ioctl |
* @arg: arg from ioctl |
* |
* LOCKING: |
* Caller? (FIXME) |
* |
* Build a new CRTC configuration based on user request. |
* |
* Called by the user via ioctl. |
* |
* RETURNS: |
* Zero on success, errno on failure. |
*/ |
int drm_mode_setcrtc(struct drm_device *dev, void *data, |
struct drm_file *file_priv) |
{ |
struct drm_mode_config *config = &dev->mode_config; |
struct drm_mode_crtc *crtc_req = data; |
struct drm_mode_object *obj; |
struct drm_crtc *crtc, *crtcfb; |
struct drm_connector **connector_set = NULL, *connector; |
struct drm_framebuffer *fb = NULL; |
struct drm_display_mode *mode = NULL; |
struct drm_mode_set set; |
uint32_t __user *set_connectors_ptr; |
int ret = 0; |
int i; |
|
mutex_lock(&dev->mode_config.mutex); |
obj = drm_mode_object_find(dev, crtc_req->crtc_id, |
DRM_MODE_OBJECT_CRTC); |
if (!obj) { |
DRM_DEBUG("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
ret = -EINVAL; |
goto out; |
} |
crtc = obj_to_crtc(obj); |
|
if (crtc_req->mode_valid) { |
/* If we have a mode we need a framebuffer. */ |
/* If we pass -1, set the mode with the currently bound fb */ |
if (crtc_req->fb_id == -1) { |
list_for_each_entry(crtcfb, |
&dev->mode_config.crtc_list, head) { |
if (crtcfb == crtc) { |
DRM_DEBUG("Using current fb for setmode\n"); |
fb = crtc->fb; |
} |
} |
} else { |
obj = drm_mode_object_find(dev, crtc_req->fb_id, |
DRM_MODE_OBJECT_FB); |
if (!obj) { |
DRM_DEBUG("Unknown FB ID%d\n", crtc_req->fb_id); |
ret = -EINVAL; |
goto out; |
} |
fb = obj_to_fb(obj); |
} |
|
mode = drm_mode_create(dev); |
drm_crtc_convert_umode(mode, &crtc_req->mode); |
drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
} |
|
if (crtc_req->count_connectors == 0 && mode) { |
DRM_DEBUG("Count connectors is 0 but mode set\n"); |
ret = -EINVAL; |
goto out; |
} |
|
if (crtc_req->count_connectors > 0 && !mode && !fb) { |
DRM_DEBUG("Count connectors is %d but no mode or fb set\n", |
crtc_req->count_connectors); |
ret = -EINVAL; |
goto out; |
} |
|
if (crtc_req->count_connectors > 0) { |
u32 out_id; |
|
/* Avoid unbounded kernel memory allocation */ |
if (crtc_req->count_connectors > config->num_connector) { |
ret = -EINVAL; |
goto out; |
} |
|
connector_set = kmalloc(crtc_req->count_connectors * |
sizeof(struct drm_connector *), |
GFP_KERNEL); |
if (!connector_set) { |
ret = -ENOMEM; |
goto out; |
} |
|
for (i = 0; i < crtc_req->count_connectors; i++) { |
set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr; |
if (get_user(out_id, &set_connectors_ptr[i])) { |
ret = -EFAULT; |
goto out; |
} |
|
obj = drm_mode_object_find(dev, out_id, |
DRM_MODE_OBJECT_CONNECTOR); |
if (!obj) { |
DRM_DEBUG("Connector id %d unknown\n", out_id); |
ret = -EINVAL; |
goto out; |
} |
connector = obj_to_connector(obj); |
|
connector_set[i] = connector; |
} |
} |
|
set.crtc = crtc; |
set.x = crtc_req->x; |
set.y = crtc_req->y; |
set.mode = mode; |
set.connectors = connector_set; |
set.num_connectors = crtc_req->count_connectors; |
set.fb =fb; |
ret = crtc->funcs->set_config(&set); |
|
out: |
kfree(connector_set); |
mutex_unlock(&dev->mode_config.mutex); |
return ret; |
} |
|
int drm_mode_cursor_ioctl(struct drm_device *dev, |
void *data, struct drm_file *file_priv) |
{ |
struct drm_mode_cursor *req = data; |
struct drm_mode_object *obj; |
struct drm_crtc *crtc; |
int ret = 0; |
|
DRM_DEBUG("\n"); |
|
if (!req->flags) { |
DRM_ERROR("no operation set\n"); |
return -EINVAL; |
} |
|
mutex_lock(&dev->mode_config.mutex); |
obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC); |
if (!obj) { |
DRM_DEBUG("Unknown CRTC ID %d\n", req->crtc_id); |
ret = -EINVAL; |
goto out; |
} |
crtc = obj_to_crtc(obj); |
|
if (req->flags & DRM_MODE_CURSOR_BO) { |
if (!crtc->funcs->cursor_set) { |
DRM_ERROR("crtc does not support cursor\n"); |
ret = -ENXIO; |
goto out; |
} |
/* Turns off the cursor if handle is 0 */ |
ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, |
req->width, req->height); |
} |
|
if (req->flags & DRM_MODE_CURSOR_MOVE) { |
if (crtc->funcs->cursor_move) { |
ret = crtc->funcs->cursor_move(crtc, req->x, req->y); |
} else { |
DRM_ERROR("crtc does not support cursor\n"); |
ret = -EFAULT; |
goto out; |
} |
} |
out: |
mutex_unlock(&dev->mode_config.mutex); |
return ret; |
} |
|
/** |
* drm_mode_addfb - add an FB to the graphics configuration |
* @inode: inode from the ioctl |
* @filp: file * from the ioctl |
* @cmd: cmd from ioctl |
* @arg: arg from ioctl |
* |
* LOCKING: |
* Takes mode config lock. |
* |
* Add a new FB to the specified CRTC, given a user request. |
* |
* Called by the user via ioctl. |
* |
* RETURNS: |
* Zero on success, errno on failure. |
*/ |
int drm_mode_addfb(struct drm_device *dev, |
void *data, struct drm_file *file_priv) |
{ |
struct drm_mode_fb_cmd *r = data; |
struct drm_mode_config *config = &dev->mode_config; |
struct drm_framebuffer *fb; |
int ret = 0; |
|
if ((config->min_width > r->width) || (r->width > config->max_width)) { |
DRM_ERROR("mode new framebuffer width not within limits\n"); |
return -EINVAL; |
} |
if ((config->min_height > r->height) || (r->height > config->max_height)) { |
DRM_ERROR("mode new framebuffer height not within limits\n"); |
return -EINVAL; |
} |
|
mutex_lock(&dev->mode_config.mutex); |
|
/* TODO check buffer is sufficently large */ |
/* TODO setup destructor callback */ |
|
fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
if (!fb) { |
DRM_ERROR("could not create framebuffer\n"); |
ret = -EINVAL; |
goto out; |
} |
|
r->fb_id = fb->base.id; |
list_add(&fb->filp_head, &file_priv->fbs); |
|
out: |
mutex_unlock(&dev->mode_config.mutex); |
return ret; |
} |
|
/** |
* drm_mode_rmfb - remove an FB from the configuration |
* @inode: inode from the ioctl |
* @filp: file * from the ioctl |
* @cmd: cmd from ioctl |
* @arg: arg from ioctl |
* |
* LOCKING: |
* Takes mode config lock. |
* |
* Remove the FB specified by the user. |
* |
* Called by the user via ioctl. |
* |
* RETURNS: |
* Zero on success, errno on failure. |
*/ |
int drm_mode_rmfb(struct drm_device *dev, |
void *data, struct drm_file *file_priv) |
{ |
struct drm_mode_object *obj; |
struct drm_framebuffer *fb = NULL; |
struct drm_framebuffer *fbl = NULL; |
uint32_t *id = data; |
int ret = 0; |
int found = 0; |
|
mutex_lock(&dev->mode_config.mutex); |
obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB); |
/* TODO check that we realy get a framebuffer back. */ |
if (!obj) { |
DRM_ERROR("mode invalid framebuffer id\n"); |
ret = -EINVAL; |
goto out; |
} |
fb = obj_to_fb(obj); |
|
list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
if (fb == fbl) |
found = 1; |
|
if (!found) { |
DRM_ERROR("tried to remove a fb that we didn't own\n"); |
ret = -EINVAL; |
goto out; |
} |
|
/* TODO release all crtc connected to the framebuffer */ |
/* TODO unhock the destructor from the buffer object */ |
|
list_del(&fb->filp_head); |
fb->funcs->destroy(fb); |
|
out: |
mutex_unlock(&dev->mode_config.mutex); |
return ret; |
} |
|
/** |
* drm_mode_getfb - get FB info |
* @inode: inode from the ioctl |
* @filp: file * from the ioctl |
* @cmd: cmd from ioctl |
* @arg: arg from ioctl |
* |
* LOCKING: |
* Caller? (FIXME) |
* |
* Lookup the FB given its ID and return info about it. |
* |
* Called by the user via ioctl. |
* |
* RETURNS: |
* Zero on success, errno on failure. |
*/ |
int drm_mode_getfb(struct drm_device *dev, |
void *data, struct drm_file *file_priv) |
{ |
struct drm_mode_fb_cmd *r = data; |
struct drm_mode_object *obj; |
struct drm_framebuffer *fb; |
int ret = 0; |
|
mutex_lock(&dev->mode_config.mutex); |
obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB); |
if (!obj) { |
DRM_ERROR("invalid framebuffer id\n"); |
ret = -EINVAL; |
goto out; |
} |
fb = obj_to_fb(obj); |
|
r->height = fb->height; |
r->width = fb->width; |
r->depth = fb->depth; |
r->bpp = fb->bits_per_pixel; |
r->pitch = fb->pitch; |
fb->funcs->create_handle(fb, file_priv, &r->handle); |
|
out: |
mutex_unlock(&dev->mode_config.mutex); |
return ret; |
} |
|
/** |
* drm_fb_release - remove and free the FBs on this file |
* @filp: file * from the ioctl |
* |
* LOCKING: |
* Takes mode config lock. |
* |
* Destroy all the FBs associated with @filp. |
* |
* Called by the user via ioctl. |
* |
* RETURNS: |
* Zero on success, errno on failure. |
*/ |
void drm_fb_release(struct drm_file *priv) |
{ |
struct drm_device *dev = priv->minor->dev; |
struct drm_framebuffer *fb, *tfb; |
|
mutex_lock(&dev->mode_config.mutex); |
list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
list_del(&fb->filp_head); |
fb->funcs->destroy(fb); |
} |
mutex_unlock(&dev->mode_config.mutex); |
} |
#endif |
|
|
/** |
* drm_mode_attachmode - add a mode to the user mode list |
* @dev: DRM device |
* @connector: connector to add the mode to |
* @mode: mode to add |
* |
* Add @mode to @connector's user mode list. |
*/ |
static int drm_mode_attachmode(struct drm_device *dev, |
struct drm_connector *connector, |
struct drm_display_mode *mode) |
{ |
int ret = 0; |
|
list_add_tail(&mode->head, &connector->user_modes); |
return ret; |
} |
|
int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc, |
struct drm_display_mode *mode) |
{ |
struct drm_connector *connector; |
int ret = 0; |
struct drm_display_mode *dup_mode; |
int need_dup = 0; |
list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
if (!connector->encoder) |
break; |
if (connector->encoder->crtc == crtc) { |
if (need_dup) |
dup_mode = drm_mode_duplicate(dev, mode); |
else |
dup_mode = mode; |
ret = drm_mode_attachmode(dev, connector, dup_mode); |
if (ret) |
return ret; |
need_dup = 1; |
} |
} |
return 0; |
} |
EXPORT_SYMBOL(drm_mode_attachmode_crtc); |
|
static int drm_mode_detachmode(struct drm_device *dev, |
struct drm_connector *connector, |
struct drm_display_mode *mode) |
{ |
int found = 0; |
int ret = 0; |
struct drm_display_mode *match_mode, *t; |
|
list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) { |
if (drm_mode_equal(match_mode, mode)) { |
list_del(&match_mode->head); |
drm_mode_destroy(dev, match_mode); |
found = 1; |
break; |
} |
} |
|
if (!found) |
ret = -EINVAL; |
|
return ret; |
} |
|
int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode) |
{ |
struct drm_connector *connector; |
|
list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
drm_mode_detachmode(dev, connector, mode); |
} |
return 0; |
} |
EXPORT_SYMBOL(drm_mode_detachmode_crtc); |
|
#if 0 |
|
/** |
* drm_fb_attachmode - Attach a user mode to an connector |
* @inode: inode from the ioctl |
* @filp: file * from the ioctl |
* @cmd: cmd from ioctl |
* @arg: arg from ioctl |
* |
* This attaches a user specified mode to an connector. |
* Called by the user via ioctl. |
* |
* RETURNS: |
* Zero on success, errno on failure. |
*/ |
int drm_mode_attachmode_ioctl(struct drm_device *dev, |
void *data, struct drm_file *file_priv) |
{ |
struct drm_mode_mode_cmd *mode_cmd = data; |
struct drm_connector *connector; |
struct drm_display_mode *mode; |
struct drm_mode_object *obj; |
struct drm_mode_modeinfo *umode = &mode_cmd->mode; |
int ret = 0; |
|
mutex_lock(&dev->mode_config.mutex); |
|
obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); |
if (!obj) { |
ret = -EINVAL; |
goto out; |
} |
connector = obj_to_connector(obj); |
|
mode = drm_mode_create(dev); |
if (!mode) { |
ret = -ENOMEM; |
goto out; |
} |
|
drm_crtc_convert_umode(mode, umode); |
|
ret = drm_mode_attachmode(dev, connector, mode); |
out: |
mutex_unlock(&dev->mode_config.mutex); |
return ret; |
} |
|
|
/** |
* drm_fb_detachmode - Detach a user specified mode from an connector |
* @inode: inode from the ioctl |
* @filp: file * from the ioctl |
* @cmd: cmd from ioctl |
* @arg: arg from ioctl |
* |
* Called by the user via ioctl. |
* |
* RETURNS: |
* Zero on success, errno on failure. |
*/ |
int drm_mode_detachmode_ioctl(struct drm_device *dev, |
void *data, struct drm_file *file_priv) |
{ |
struct drm_mode_object *obj; |
struct drm_mode_mode_cmd *mode_cmd = data; |
struct drm_connector *connector; |
struct drm_display_mode mode; |
struct drm_mode_modeinfo *umode = &mode_cmd->mode; |
int ret = 0; |
|
mutex_lock(&dev->mode_config.mutex); |
|
obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); |
if (!obj) { |
ret = -EINVAL; |
goto out; |
} |
connector = obj_to_connector(obj); |
|
drm_crtc_convert_umode(&mode, umode); |
ret = drm_mode_detachmode(dev, connector, &mode); |
out: |
mutex_unlock(&dev->mode_config.mutex); |
return ret; |
} |
#endif |
|
struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
const char *name, int num_values) |
{ |
struct drm_property *property = NULL; |
|
property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); |
if (!property) |
return NULL; |
|
if (num_values) { |
property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); |
if (!property->values) |
goto fail; |
} |
|
drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
property->flags = flags; |
property->num_values = num_values; |
INIT_LIST_HEAD(&property->enum_blob_list); |
|
if (name) |
strncpy(property->name, name, DRM_PROP_NAME_LEN); |
|
list_add_tail(&property->head, &dev->mode_config.property_list); |
return property; |
fail: |
kfree(property); |
return NULL; |
} |
EXPORT_SYMBOL(drm_property_create); |
|
int drm_property_add_enum(struct drm_property *property, int index, |
uint64_t value, const char *name) |
{ |
struct drm_property_enum *prop_enum; |
|
if (!(property->flags & DRM_MODE_PROP_ENUM)) |
return -EINVAL; |
|
if (!list_empty(&property->enum_blob_list)) { |
list_for_each_entry(prop_enum, &property->enum_blob_list, head) { |
if (prop_enum->value == value) { |
strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); |
prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; |
return 0; |
} |
} |
} |
|
prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); |
if (!prop_enum) |
return -ENOMEM; |
|
strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); |
prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; |
prop_enum->value = value; |
|
property->values[index] = value; |
list_add_tail(&prop_enum->head, &property->enum_blob_list); |
return 0; |
} |
EXPORT_SYMBOL(drm_property_add_enum); |
|
void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
{ |
struct drm_property_enum *prop_enum, *pt; |
|
list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { |
list_del(&prop_enum->head); |
kfree(prop_enum); |
} |
|
if (property->num_values) |
kfree(property->values); |
drm_mode_object_put(dev, &property->base); |
list_del(&property->head); |
kfree(property); |
} |
EXPORT_SYMBOL(drm_property_destroy); |
|
int drm_connector_attach_property(struct drm_connector *connector, |
struct drm_property *property, uint64_t init_val) |
{ |
int i; |
|
for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { |
if (connector->property_ids[i] == 0) { |
connector->property_ids[i] = property->base.id; |
connector->property_values[i] = init_val; |
break; |
} |
} |
|
if (i == DRM_CONNECTOR_MAX_PROPERTY) |
return -EINVAL; |
return 0; |
} |
EXPORT_SYMBOL(drm_connector_attach_property); |
|
int drm_connector_property_set_value(struct drm_connector *connector, |
struct drm_property *property, uint64_t value) |
{ |
int i; |
|
for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { |
if (connector->property_ids[i] == property->base.id) { |
connector->property_values[i] = value; |
break; |
} |
} |
|
if (i == DRM_CONNECTOR_MAX_PROPERTY) |
return -EINVAL; |
return 0; |
} |
EXPORT_SYMBOL(drm_connector_property_set_value); |
|
int drm_connector_property_get_value(struct drm_connector *connector, |
struct drm_property *property, uint64_t *val) |
{ |
int i; |
|
for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { |
if (connector->property_ids[i] == property->base.id) { |
*val = connector->property_values[i]; |
break; |
} |
} |
|
if (i == DRM_CONNECTOR_MAX_PROPERTY) |
return -EINVAL; |
return 0; |
} |
EXPORT_SYMBOL(drm_connector_property_get_value); |
|
#if 0 |
int drm_mode_getproperty_ioctl(struct drm_device *dev, |
void *data, struct drm_file *file_priv) |
{ |
struct drm_mode_object *obj; |
struct drm_mode_get_property *out_resp = data; |
struct drm_property *property; |
int enum_count = 0; |
int blob_count = 0; |
int value_count = 0; |
int ret = 0, i; |
int copied; |
struct drm_property_enum *prop_enum; |
struct drm_mode_property_enum __user *enum_ptr; |
struct drm_property_blob *prop_blob; |
uint32_t *blob_id_ptr; |
uint64_t __user *values_ptr; |
uint32_t __user *blob_length_ptr; |
|
// mutex_lock(&dev->mode_config.mutex); |
obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); |
if (!obj) { |
ret = -EINVAL; |
goto done; |
} |
property = obj_to_property(obj); |
|
if (property->flags & DRM_MODE_PROP_ENUM) { |
list_for_each_entry(prop_enum, &property->enum_blob_list, head) |
enum_count++; |
} else if (property->flags & DRM_MODE_PROP_BLOB) { |
list_for_each_entry(prop_blob, &property->enum_blob_list, head) |
blob_count++; |
} |
|
value_count = property->num_values; |
|
strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); |
out_resp->name[DRM_PROP_NAME_LEN-1] = 0; |
out_resp->flags = property->flags; |
|
if ((out_resp->count_values >= value_count) && value_count) { |
values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr; |
for (i = 0; i < value_count; i++) { |
if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { |
ret = -EFAULT; |
goto done; |
} |
} |
} |
out_resp->count_values = value_count; |
|
if (property->flags & DRM_MODE_PROP_ENUM) { |
if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
copied = 0; |
enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr; |
list_for_each_entry(prop_enum, &property->enum_blob_list, head) { |
|
if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { |
ret = -EFAULT; |
goto done; |
} |
|
if (copy_to_user(&enum_ptr[copied].name, |
&prop_enum->name, DRM_PROP_NAME_LEN)) { |
ret = -EFAULT; |
goto done; |
} |
copied++; |
} |
} |
out_resp->count_enum_blobs = enum_count; |
} |
|
if (property->flags & DRM_MODE_PROP_BLOB) { |
if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { |
copied = 0; |
blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr; |
blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr; |
|
list_for_each_entry(prop_blob, &property->enum_blob_list, head) { |
if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { |
ret = -EFAULT; |
goto done; |
} |
|
if (put_user(prop_blob->length, blob_length_ptr + copied)) { |
ret = -EFAULT; |
goto done; |
} |
|
copied++; |
} |
} |
out_resp->count_enum_blobs = blob_count; |
} |
done: |
// mutex_unlock(&dev->mode_config.mutex); |
return ret; |
} |
#endif |
|
static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, |
void *data) |
{ |
struct drm_property_blob *blob; |
|
if (!length || !data) |
return NULL; |
|
blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); |
if (!blob) |
return NULL; |
|
blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob)); |
blob->length = length; |
|
memcpy(blob->data, data, length); |
|
drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
|
list_add_tail(&blob->head, &dev->mode_config.property_blob_list); |
return blob; |
} |
|
static void drm_property_destroy_blob(struct drm_device *dev, |
struct drm_property_blob *blob) |
{ |
drm_mode_object_put(dev, &blob->base); |
list_del(&blob->head); |
kfree(blob); |
} |
|
#if 0 |
int drm_mode_getblob_ioctl(struct drm_device *dev, |
void *data, struct drm_file *file_priv) |
{ |
struct drm_mode_object *obj; |
struct drm_mode_get_blob *out_resp = data; |
struct drm_property_blob *blob; |
int ret = 0; |
void *blob_ptr; |
|
mutex_lock(&dev->mode_config.mutex); |
obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB); |
if (!obj) { |
ret = -EINVAL; |
goto done; |
} |
blob = obj_to_blob(obj); |
|
if (out_resp->length == blob->length) { |
blob_ptr = (void *)(unsigned long)out_resp->data; |
if (copy_to_user(blob_ptr, blob->data, blob->length)){ |
ret = -EFAULT; |
goto done; |
} |
} |
out_resp->length = blob->length; |
|
done: |
mutex_unlock(&dev->mode_config.mutex); |
return ret; |
} |
#endif |
|
int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
struct edid *edid) |
{ |
struct drm_device *dev = connector->dev; |
int ret = 0; |
|
if (connector->edid_blob_ptr) |
drm_property_destroy_blob(dev, connector->edid_blob_ptr); |
|
/* Delete edid, when there is none. */ |
if (!edid) { |
connector->edid_blob_ptr = NULL; |
ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0); |
return ret; |
} |
|
connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 128, edid); |
|
ret = drm_connector_property_set_value(connector, |
dev->mode_config.edid_property, |
connector->edid_blob_ptr->base.id); |
|
return ret; |
} |
EXPORT_SYMBOL(drm_mode_connector_update_edid_property); |
|
#if 0 |
int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
void *data, struct drm_file *file_priv) |
{ |
struct drm_mode_connector_set_property *out_resp = data; |
struct drm_mode_object *obj; |
struct drm_property *property; |
struct drm_connector *connector; |
int ret = -EINVAL; |
int i; |
|
// mutex_lock(&dev->mode_config.mutex); |
|
obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR); |
if (!obj) { |
goto out; |
} |
connector = obj_to_connector(obj); |
|
for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { |
if (connector->property_ids[i] == out_resp->prop_id) |
break; |
} |
|
if (i == DRM_CONNECTOR_MAX_PROPERTY) { |
goto out; |
} |
|
obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); |
if (!obj) { |
goto out; |
} |
property = obj_to_property(obj); |
|
if (property->flags & DRM_MODE_PROP_IMMUTABLE) |
goto out; |
|
if (property->flags & DRM_MODE_PROP_RANGE) { |
if (out_resp->value < property->values[0]) |
goto out; |
|
if (out_resp->value > property->values[1]) |
goto out; |
} else { |
int found = 0; |
for (i = 0; i < property->num_values; i++) { |
if (property->values[i] == out_resp->value) { |
found = 1; |
break; |
} |
} |
if (!found) { |
goto out; |
} |
} |
|
/* Do DPMS ourselves */ |
if (property == connector->dev->mode_config.dpms_property) { |
if (connector->funcs->dpms) |
(*connector->funcs->dpms)(connector, (int) out_resp->value); |
ret = 0; |
} else if (connector->funcs->set_property) |
ret = connector->funcs->set_property(connector, property, out_resp->value); |
|
/* store the property value if succesful */ |
if (!ret) |
drm_connector_property_set_value(connector, property, out_resp->value); |
out: |
// mutex_unlock(&dev->mode_config.mutex); |
return ret; |
} |
#endif |
|
int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
struct drm_encoder *encoder) |
{ |
int i; |
|
for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
if (connector->encoder_ids[i] == 0) { |
connector->encoder_ids[i] = encoder->base.id; |
return 0; |
} |
} |
return -ENOMEM; |
} |
EXPORT_SYMBOL(drm_mode_connector_attach_encoder); |
|
void drm_mode_connector_detach_encoder(struct drm_connector *connector, |
struct drm_encoder *encoder) |
{ |
int i; |
for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
if (connector->encoder_ids[i] == encoder->base.id) { |
connector->encoder_ids[i] = 0; |
if (connector->encoder == encoder) |
connector->encoder = NULL; |
break; |
} |
} |
} |
EXPORT_SYMBOL(drm_mode_connector_detach_encoder); |
|
bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
int gamma_size) |
{ |
crtc->gamma_size = gamma_size; |
|
crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); |
if (!crtc->gamma_store) { |
crtc->gamma_size = 0; |
return false; |
} |
|
return true; |
} |
EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); |
|
#if 0 |
int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
void *data, struct drm_file *file_priv) |
{ |
struct drm_mode_crtc_lut *crtc_lut = data; |
struct drm_mode_object *obj; |
struct drm_crtc *crtc; |
void *r_base, *g_base, *b_base; |
int size; |
int ret = 0; |
|
// mutex_lock(&dev->mode_config.mutex); |
obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); |
if (!obj) { |
ret = -EINVAL; |
goto out; |
} |
crtc = obj_to_crtc(obj); |
|
/* memcpy into gamma store */ |
if (crtc_lut->gamma_size != crtc->gamma_size) { |
ret = -EINVAL; |
goto out; |
} |
|
size = crtc_lut->gamma_size * (sizeof(uint16_t)); |
r_base = crtc->gamma_store; |
if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { |
ret = -EFAULT; |
goto out; |
} |
|
g_base = r_base + size; |
if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { |
ret = -EFAULT; |
goto out; |
} |
|
b_base = g_base + size; |
if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { |
ret = -EFAULT; |
goto out; |
} |
|
crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size); |
|
out: |
// mutex_unlock(&dev->mode_config.mutex); |
return ret; |
|
} |
|
int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
void *data, struct drm_file *file_priv) |
{ |
struct drm_mode_crtc_lut *crtc_lut = data; |
struct drm_mode_object *obj; |
struct drm_crtc *crtc; |
void *r_base, *g_base, *b_base; |
int size; |
int ret = 0; |
|
// mutex_lock(&dev->mode_config.mutex); |
obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); |
if (!obj) { |
ret = -EINVAL; |
goto out; |
} |
crtc = obj_to_crtc(obj); |
|
/* memcpy into gamma store */ |
if (crtc_lut->gamma_size != crtc->gamma_size) { |
ret = -EINVAL; |
goto out; |
} |
|
size = crtc_lut->gamma_size * (sizeof(uint16_t)); |
r_base = crtc->gamma_store; |
if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { |
ret = -EFAULT; |
goto out; |
} |
|
g_base = r_base + size; |
if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { |
ret = -EFAULT; |
goto out; |
} |
|
b_base = g_base + size; |
if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { |
ret = -EFAULT; |
goto out; |
} |
out: |
// mutex_unlock(&dev->mode_config.mutex); |
return ret; |
} |
|
#endif |