WebSVN – Kolibri OS – Blame – /drivers/video/drm/drm_crtc.c

Rev	Author	Line No.	Line
1123	serge	1	/*
		2	* Copyright (c) 2006-2008 Intel Corporation
		3	* Copyright (c) 2007 Dave Airlie
		4	* Copyright (c) 2008 Red Hat Inc.
		5	*
		6	* DRM core CRTC related functions
		7	*
		8	* Permission to use, copy, modify, distribute, and sell this software and its
		9	* documentation for any purpose is hereby granted without fee, provided that
		10	* the above copyright notice appear in all copies and that both that copyright
		11	* notice and this permission notice appear in supporting documentation, and
		12	* that the name of the copyright holders not be used in advertising or
		13	* publicity pertaining to distribution of the software without specific,
		14	* written prior permission. The copyright holders make no representations
		15	* about the suitability of this software for any purpose. It is provided "as
		16	* is" without express or implied warranty.
		17	*
		18	* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
		19	* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
		20	* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
		21	* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
		22	* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
		23	* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
		24	* OF THIS SOFTWARE.
		25	*
		26	* Authors:
		27	* Keith Packard
		28	* Eric Anholt
		29	* Dave Airlie
		30	* Jesse Barnes
		31	*/
1179	serge	32	#include
1963	serge	33	#include
1123	serge	34	#include "drm.h"
		35	#include "drmP.h"
		36	#include "drm_crtc.h"
1963	serge	37	#include "drm_edid.h"
1123	serge	38
		39	struct drm_prop_enum_list {
		40	int type;
		41	char *name;
		42	};
		43
		44	/* Avoid boilerplate. I'm tired of typing. */
		45	#define DRM_ENUM_NAME_FN(fnname, list) \
		46	char *fnname(int val) \
		47	{ \
		48	int i; \
		49	for (i = 0; i < ARRAY_SIZE(list); i++) { \
		50	if (list[i].type == val) \
		51	return list[i].name; \
		52	} \
		53	return "(unknown)"; \
		54	}
		55
		56	/*
		57	* Global properties
		58	*/
		59	static struct drm_prop_enum_list drm_dpms_enum_list[] =
		60	{ { DRM_MODE_DPMS_ON, "On" },
		61	{ DRM_MODE_DPMS_STANDBY, "Standby" },
		62	{ DRM_MODE_DPMS_SUSPEND, "Suspend" },
		63	{ DRM_MODE_DPMS_OFF, "Off" }
		64	};
		65
		66	DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
		67
		68	/*
		69	* Optional properties
		70	*/
		71	static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
		72	{
1179	serge	73	{ DRM_MODE_SCALE_NONE, "None" },
		74	{ DRM_MODE_SCALE_FULLSCREEN, "Full" },
		75	{ DRM_MODE_SCALE_CENTER, "Center" },
		76	{ DRM_MODE_SCALE_ASPECT, "Full aspect" },
1123	serge	77	};
		78
		79	static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
		80	{
		81	{ DRM_MODE_DITHERING_OFF, "Off" },
		82	{ DRM_MODE_DITHERING_ON, "On" },
1963	serge	83	{ DRM_MODE_DITHERING_AUTO, "Automatic" },
1123	serge	84	};
		85
		86	/*
		87	* Non-global properties, but "required" for certain connectors.
		88	*/
		89	static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
		90	{
		91	{ DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
		92	{ DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
		93	{ DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
		94	};
		95
		96	DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
		97
		98	static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
		99	{
		100	{ DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
		101	{ DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
		102	{ DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
		103	};
		104
		105	DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
		106	drm_dvi_i_subconnector_enum_list)
		107
		108	static struct drm_prop_enum_list drm_tv_select_enum_list[] =
		109	{
		110	{ DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
		111	{ DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
		112	{ DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
		113	{ DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
1179	serge	114	{ DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
1123	serge	115	};
		116
		117	DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
		118
		119	static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
		120	{
		121	{ DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
		122	{ DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
		123	{ DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
		124	{ DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
1179	serge	125	{ DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
1123	serge	126	};
		127
		128	DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
		129	drm_tv_subconnector_enum_list)
		130
1321	serge	131	static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
		132	{ DRM_MODE_DIRTY_OFF, "Off" },
		133	{ DRM_MODE_DIRTY_ON, "On" },
		134	{ DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
		135	};
		136
		137	DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
		138	drm_dirty_info_enum_list)
		139
1123	serge	140	struct drm_conn_prop_enum_list {
		141	int type;
		142	char *name;
		143	int count;
		144	};
		145
		146	/*
		147	* Connector and encoder types.
		148	*/
		149	static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
		150	{ { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
		151	{ DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
		152	{ DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
		153	{ DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
		154	{ DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
		155	{ DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
		156	{ DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
		157	{ DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
		158	{ DRM_MODE_CONNECTOR_Component, "Component", 0 },
1963	serge	159	{ DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
		160	{ DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
		161	{ DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
		162	{ DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
1179	serge	163	{ DRM_MODE_CONNECTOR_TV, "TV", 0 },
1963	serge	164	{ DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
1123	serge	165	};
		166
		167	static struct drm_prop_enum_list drm_encoder_enum_list[] =
		168	{ { DRM_MODE_ENCODER_NONE, "None" },
		169	{ DRM_MODE_ENCODER_DAC, "DAC" },
		170	{ DRM_MODE_ENCODER_TMDS, "TMDS" },
		171	{ DRM_MODE_ENCODER_LVDS, "LVDS" },
		172	{ DRM_MODE_ENCODER_TVDAC, "TV" },
		173	};
		174
		175	char drm_get_encoder_name(struct drm_encoder encoder)
		176	{
		177	static char buf[32];
		178
		179	snprintf(buf, 32, "%s-%d",
		180	drm_encoder_enum_list[encoder->encoder_type].name,
		181	encoder->base.id);
		182	return buf;
		183	}
1179	serge	184	EXPORT_SYMBOL(drm_get_encoder_name);
1123	serge	185
		186	char drm_get_connector_name(struct drm_connector connector)
		187	{
		188	static char buf[32];
		189
		190	snprintf(buf, 32, "%s-%d",
		191	drm_connector_enum_list[connector->connector_type].name,
		192	connector->connector_type_id);
		193	return buf;
		194	}
		195	EXPORT_SYMBOL(drm_get_connector_name);
		196
		197	char *drm_get_connector_status_name(enum drm_connector_status status)
		198	{
		199	if (status == connector_status_connected)
		200	return "connected";
		201	else if (status == connector_status_disconnected)
		202	return "disconnected";
		203	else
		204	return "unknown";
		205	}
		206
		207	/**
		208	* drm_mode_object_get - allocate a new identifier
		209	* @dev: DRM device
		210	* @ptr: object pointer, used to generate unique ID
		211	* @type: object type
		212	*
		213	* LOCKING:
		214	*
		215	* Create a unique identifier based on @ptr in @dev's identifier space. Used
		216	* for tracking modes, CRTCs and connectors.
		217	*
		218	* RETURNS:
		219	* New unique (relative to other objects in @dev) integer identifier for the
		220	* object.
		221	*/
		222	static int drm_mode_object_get(struct drm_device *dev,
		223	struct drm_mode_object *obj, uint32_t obj_type)
		224	{
		225	int new_id = 0;
		226	int ret;
		227
		228	again:
		229	if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
		230	DRM_ERROR("Ran out memory getting a mode number\n");
		231	return -EINVAL;
		232	}
		233
1179	serge	234	mutex_lock(&dev->mode_config.idr_mutex);
1123	serge	235	ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
1179	serge	236	mutex_unlock(&dev->mode_config.idr_mutex);
1123	serge	237	if (ret == -EAGAIN)
1179	serge	238	goto again;
1123	serge	239
		240	obj->id = new_id;
		241	obj->type = obj_type;
1179	serge	242	return 0;
1123	serge	243	}
		244
		245	/**
		246	* drm_mode_object_put - free an identifer
		247	* @dev: DRM device
		248	* @id: ID to free
		249	*
		250	* LOCKING:
		251	* Caller must hold DRM mode_config lock.
		252	*
		253	* Free @id from @dev's unique identifier pool.
		254	*/
		255	static void drm_mode_object_put(struct drm_device *dev,
		256	struct drm_mode_object *object)
		257	{
1179	serge	258	mutex_lock(&dev->mode_config.idr_mutex);
1123	serge	259	idr_remove(&dev->mode_config.crtc_idr, object->id);
1179	serge	260	mutex_unlock(&dev->mode_config.idr_mutex);
1123	serge	261	}
		262
1321	serge	263	struct drm_mode_object drm_mode_object_find(struct drm_device dev,
		264	uint32_t id, uint32_t type)
1123	serge	265	{
		266	struct drm_mode_object *obj = NULL;
		267
1179	serge	268	mutex_lock(&dev->mode_config.idr_mutex);
1123	serge	269	obj = idr_find(&dev->mode_config.crtc_idr, id);
		270	if (!obj \|\| (obj->type != type) \|\| (obj->id != id))
		271	obj = NULL;
1179	serge	272	mutex_unlock(&dev->mode_config.idr_mutex);
1123	serge	273
		274	return obj;
		275	}
		276	EXPORT_SYMBOL(drm_mode_object_find);
		277
		278	/**
		279	* drm_framebuffer_init - initialize a framebuffer
		280	* @dev: DRM device
		281	*
		282	* LOCKING:
		283	* Caller must hold mode config lock.
		284	*
		285	* Allocates an ID for the framebuffer's parent mode object, sets its mode
		286	* functions & device file and adds it to the master fd list.
		287	*
		288	* RETURNS:
1321	serge	289	* Zero on success, error code on failure.
1123	serge	290	*/
		291	int drm_framebuffer_init(struct drm_device dev, struct drm_framebuffer fb,
		292	const struct drm_framebuffer_funcs *funcs)
		293	{
		294	int ret;
1963	serge	295
1123	serge	296	ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
		297	if (ret) {
		298	return ret;
		299	}
		300
		301	fb->dev = dev;
		302	fb->funcs = funcs;
		303	dev->mode_config.num_fb++;
		304	list_add(&fb->head, &dev->mode_config.fb_list);
		305
		306	return 0;
		307	}
		308	EXPORT_SYMBOL(drm_framebuffer_init);
		309
		310	/**
		311	* drm_framebuffer_cleanup - remove a framebuffer object
		312	* @fb: framebuffer to remove
		313	*
		314	* LOCKING:
		315	* Caller must hold mode config lock.
		316	*
		317	* Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
		318	* it, setting it to NULL.
		319	*/
		320	void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
		321	{
		322	struct drm_device *dev = fb->dev;
		323	struct drm_crtc *crtc;
1179	serge	324	struct drm_mode_set set;
		325	int ret;
1123	serge	326
		327	/* remove from any CRTC */
		328	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1179	serge	329	if (crtc->fb == fb) {
		330	/* should turn off the crtc */
		331	memset(&set, 0, sizeof(struct drm_mode_set));
		332	set.crtc = crtc;
		333	set.fb = NULL;
		334	ret = crtc->funcs->set_config(&set);
		335	if (ret)
		336	DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
		337	}
1123	serge	338	}
		339
		340	drm_mode_object_put(dev, &fb->base);
		341	list_del(&fb->head);
		342	dev->mode_config.num_fb--;
		343	}
		344	EXPORT_SYMBOL(drm_framebuffer_cleanup);
		345
		346	/**
		347	* drm_crtc_init - Initialise a new CRTC object
		348	* @dev: DRM device
		349	* @crtc: CRTC object to init
		350	* @funcs: callbacks for the new CRTC
		351	*
		352	* LOCKING:
		353	* Caller must hold mode config lock.
		354	*
		355	* Inits a new object created as base part of an driver crtc object.
		356	*/
		357	void drm_crtc_init(struct drm_device dev, struct drm_crtc crtc,
		358	const struct drm_crtc_funcs *funcs)
		359	{
		360	crtc->dev = dev;
		361	crtc->funcs = funcs;
		362
1179	serge	363	mutex_lock(&dev->mode_config.mutex);
1123	serge	364	drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
		365
		366	list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
		367	dev->mode_config.num_crtc++;
1179	serge	368	mutex_unlock(&dev->mode_config.mutex);
1123	serge	369	}
		370	EXPORT_SYMBOL(drm_crtc_init);
		371
		372	/**
		373	* drm_crtc_cleanup - Cleans up the core crtc usage.
		374	* @crtc: CRTC to cleanup
		375	*
		376	* LOCKING:
		377	* Caller must hold mode config lock.
		378	*
		379	* Cleanup @crtc. Removes from drm modesetting space
		380	* does NOT free object, caller does that.
		381	*/
		382	void drm_crtc_cleanup(struct drm_crtc *crtc)
		383	{
		384	struct drm_device *dev = crtc->dev;
		385
		386	if (crtc->gamma_store) {
		387	kfree(crtc->gamma_store);
		388	crtc->gamma_store = NULL;
		389	}
		390
		391	drm_mode_object_put(dev, &crtc->base);
		392	list_del(&crtc->head);
		393	dev->mode_config.num_crtc--;
		394	}
		395	EXPORT_SYMBOL(drm_crtc_cleanup);
		396
		397	/**
		398	* drm_mode_probed_add - add a mode to a connector's probed mode list
		399	* @connector: connector the new mode
		400	* @mode: mode data
		401	*
		402	* LOCKING:
		403	* Caller must hold mode config lock.
		404	*
		405	* Add @mode to @connector's mode list for later use.
		406	*/
		407	void drm_mode_probed_add(struct drm_connector *connector,
		408	struct drm_display_mode *mode)
		409	{
		410	list_add(&mode->head, &connector->probed_modes);
		411	}
		412	EXPORT_SYMBOL(drm_mode_probed_add);
		413
		414	/**
		415	* drm_mode_remove - remove and free a mode
		416	* @connector: connector list to modify
		417	* @mode: mode to remove
		418	*
		419	* LOCKING:
		420	* Caller must hold mode config lock.
		421	*
		422	* Remove @mode from @connector's mode list, then free it.
		423	*/
		424	void drm_mode_remove(struct drm_connector *connector,
		425	struct drm_display_mode *mode)
		426	{
		427	list_del(&mode->head);
		428	kfree(mode);
		429	}
		430	EXPORT_SYMBOL(drm_mode_remove);
		431
		432	/**
		433	* drm_connector_init - Init a preallocated connector
		434	* @dev: DRM device
		435	* @connector: the connector to init
		436	* @funcs: callbacks for this connector
		437	* @name: user visible name of the connector
		438	*
		439	* LOCKING:
		440	* Caller must hold @dev's mode_config lock.
		441	*
		442	* Initialises a preallocated connector. Connectors should be
		443	* subclassed as part of driver connector objects.
		444	*/
		445	void drm_connector_init(struct drm_device *dev,
		446	struct drm_connector *connector,
		447	const struct drm_connector_funcs *funcs,
		448	int connector_type)
		449	{
1179	serge	450	mutex_lock(&dev->mode_config.mutex);
1123	serge	451
		452	connector->dev = dev;
		453	connector->funcs = funcs;
		454	drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
		455	connector->connector_type = connector_type;
		456	connector->connector_type_id =
		457	++drm_connector_enum_list[connector_type].count; /* TODO */
		458	INIT_LIST_HEAD(&connector->user_modes);
		459	INIT_LIST_HEAD(&connector->probed_modes);
		460	INIT_LIST_HEAD(&connector->modes);
		461	connector->edid_blob_ptr = NULL;
		462
		463	list_add_tail(&connector->head, &dev->mode_config.connector_list);
		464	dev->mode_config.num_connector++;
		465
		466	drm_connector_attach_property(connector,
		467	dev->mode_config.edid_property, 0);
		468
		469	drm_connector_attach_property(connector,
		470	dev->mode_config.dpms_property, 0);
		471
1179	serge	472	mutex_unlock(&dev->mode_config.mutex);
1123	serge	473	}
		474	EXPORT_SYMBOL(drm_connector_init);
		475
		476	/**
		477	* drm_connector_cleanup - cleans up an initialised connector
		478	* @connector: connector to cleanup
		479	*
		480	* LOCKING:
		481	* Caller must hold @dev's mode_config lock.
		482	*
		483	* Cleans up the connector but doesn't free the object.
		484	*/
		485	void drm_connector_cleanup(struct drm_connector *connector)
		486	{
		487	struct drm_device *dev = connector->dev;
		488	struct drm_display_mode mode, t;
		489
		490	list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
		491	drm_mode_remove(connector, mode);
		492
		493	list_for_each_entry_safe(mode, t, &connector->modes, head)
		494	drm_mode_remove(connector, mode);
		495
		496	list_for_each_entry_safe(mode, t, &connector->user_modes, head)
		497	drm_mode_remove(connector, mode);
		498
1179	serge	499	mutex_lock(&dev->mode_config.mutex);
1123	serge	500	drm_mode_object_put(dev, &connector->base);
		501	list_del(&connector->head);
1179	serge	502	mutex_unlock(&dev->mode_config.mutex);
1123	serge	503	}
		504	EXPORT_SYMBOL(drm_connector_cleanup);
		505
		506	void drm_encoder_init(struct drm_device *dev,
		507	struct drm_encoder *encoder,
		508	const struct drm_encoder_funcs *funcs,
		509	int encoder_type)
		510	{
1179	serge	511	mutex_lock(&dev->mode_config.mutex);
1123	serge	512
		513	encoder->dev = dev;
		514
		515	drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
		516	encoder->encoder_type = encoder_type;
		517	encoder->funcs = funcs;
		518
		519	list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
		520	dev->mode_config.num_encoder++;
		521
1179	serge	522	mutex_unlock(&dev->mode_config.mutex);
1123	serge	523	}
		524	EXPORT_SYMBOL(drm_encoder_init);
		525
		526	void drm_encoder_cleanup(struct drm_encoder *encoder)
		527	{
		528	struct drm_device *dev = encoder->dev;
1179	serge	529	mutex_lock(&dev->mode_config.mutex);
1123	serge	530	drm_mode_object_put(dev, &encoder->base);
		531	list_del(&encoder->head);
1179	serge	532	mutex_unlock(&dev->mode_config.mutex);
1123	serge	533	}
		534	EXPORT_SYMBOL(drm_encoder_cleanup);
		535
		536	/**
		537	* drm_mode_create - create a new display mode
		538	* @dev: DRM device
		539	*
		540	* LOCKING:
		541	* Caller must hold DRM mode_config lock.
		542	*
		543	* Create a new drm_display_mode, give it an ID, and return it.
		544	*
		545	* RETURNS:
		546	* Pointer to new mode on success, NULL on error.
		547	*/
		548	struct drm_display_mode drm_mode_create(struct drm_device dev)
		549	{
		550	struct drm_display_mode *nmode;
		551
		552	nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
		553	if (!nmode)
		554	return NULL;
		555
		556	drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
		557	return nmode;
		558	}
		559	EXPORT_SYMBOL(drm_mode_create);
		560
		561	/**
		562	* drm_mode_destroy - remove a mode
		563	* @dev: DRM device
		564	* @mode: mode to remove
		565	*
		566	* LOCKING:
		567	* Caller must hold mode config lock.
		568	*
		569	* Free @mode's unique identifier, then free it.
		570	*/
		571	void drm_mode_destroy(struct drm_device dev, struct drm_display_mode mode)
		572	{
		573	drm_mode_object_put(dev, &mode->base);
		574
		575	kfree(mode);
		576	}
		577	EXPORT_SYMBOL(drm_mode_destroy);
		578
		579	static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
		580	{
		581	struct drm_property *edid;
		582	struct drm_property *dpms;
		583	int i;
		584
		585	/*
		586	* Standard properties (apply to all connectors)
		587	*/
		588	edid = drm_property_create(dev, DRM_MODE_PROP_BLOB \|
		589	DRM_MODE_PROP_IMMUTABLE,
		590	"EDID", 0);
		591	dev->mode_config.edid_property = edid;
		592
		593	dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
		594	"DPMS", ARRAY_SIZE(drm_dpms_enum_list));
		595	for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
		596	drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
		597	drm_dpms_enum_list[i].name);
		598	dev->mode_config.dpms_property = dpms;
		599
		600	return 0;
		601	}
		602
		603	/**
		604	* drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
		605	* @dev: DRM device
		606	*
		607	* Called by a driver the first time a DVI-I connector is made.
		608	*/
		609	int drm_mode_create_dvi_i_properties(struct drm_device *dev)
		610	{
		611	struct drm_property *dvi_i_selector;
		612	struct drm_property *dvi_i_subconnector;
		613	int i;
		614
		615	if (dev->mode_config.dvi_i_select_subconnector_property)
		616	return 0;
		617
		618	dvi_i_selector =
		619	drm_property_create(dev, DRM_MODE_PROP_ENUM,
		620	"select subconnector",
		621	ARRAY_SIZE(drm_dvi_i_select_enum_list));
		622	for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
		623	drm_property_add_enum(dvi_i_selector, i,
		624	drm_dvi_i_select_enum_list[i].type,
		625	drm_dvi_i_select_enum_list[i].name);
		626	dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
		627
		628	dvi_i_subconnector =
		629	drm_property_create(dev, DRM_MODE_PROP_ENUM \|
		630	DRM_MODE_PROP_IMMUTABLE,
		631	"subconnector",
		632	ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
		633	for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
		634	drm_property_add_enum(dvi_i_subconnector, i,
		635	drm_dvi_i_subconnector_enum_list[i].type,
		636	drm_dvi_i_subconnector_enum_list[i].name);
		637	dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
		638
		639	return 0;
		640	}
		641	EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
		642
		643	/**
		644	* drm_create_tv_properties - create TV specific connector properties
		645	* @dev: DRM device
		646	* @num_modes: number of different TV formats (modes) supported
		647	* @modes: array of pointers to strings containing name of each format
		648	*
		649	* Called by a driver's TV initialization routine, this function creates
		650	* the TV specific connector properties for a given device. Caller is
		651	* responsible for allocating a list of format names and passing them to
		652	* this routine.
		653	*/
		654	int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
		655	char *modes[])
		656	{
		657	struct drm_property *tv_selector;
		658	struct drm_property *tv_subconnector;
		659	int i;
		660
		661	if (dev->mode_config.tv_select_subconnector_property)
		662	return 0;
		663
		664	/*
		665	* Basic connector properties
		666	*/
		667	tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
		668	"select subconnector",
		669	ARRAY_SIZE(drm_tv_select_enum_list));
		670	for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
		671	drm_property_add_enum(tv_selector, i,
		672	drm_tv_select_enum_list[i].type,
		673	drm_tv_select_enum_list[i].name);
		674	dev->mode_config.tv_select_subconnector_property = tv_selector;
		675
		676	tv_subconnector =
		677	drm_property_create(dev, DRM_MODE_PROP_ENUM \|
		678	DRM_MODE_PROP_IMMUTABLE, "subconnector",
		679	ARRAY_SIZE(drm_tv_subconnector_enum_list));
		680	for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
		681	drm_property_add_enum(tv_subconnector, i,
		682	drm_tv_subconnector_enum_list[i].type,
		683	drm_tv_subconnector_enum_list[i].name);
		684	dev->mode_config.tv_subconnector_property = tv_subconnector;
		685
		686	/*
		687	* Other, TV specific properties: margins & TV modes.
		688	*/
		689	dev->mode_config.tv_left_margin_property =
		690	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		691	"left margin", 2);
		692	dev->mode_config.tv_left_margin_property->values[0] = 0;
		693	dev->mode_config.tv_left_margin_property->values[1] = 100;
		694
		695	dev->mode_config.tv_right_margin_property =
		696	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		697	"right margin", 2);
		698	dev->mode_config.tv_right_margin_property->values[0] = 0;
		699	dev->mode_config.tv_right_margin_property->values[1] = 100;
		700
		701	dev->mode_config.tv_top_margin_property =
		702	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		703	"top margin", 2);
		704	dev->mode_config.tv_top_margin_property->values[0] = 0;
		705	dev->mode_config.tv_top_margin_property->values[1] = 100;
		706
		707	dev->mode_config.tv_bottom_margin_property =
		708	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		709	"bottom margin", 2);
		710	dev->mode_config.tv_bottom_margin_property->values[0] = 0;
		711	dev->mode_config.tv_bottom_margin_property->values[1] = 100;
		712
		713	dev->mode_config.tv_mode_property =
		714	drm_property_create(dev, DRM_MODE_PROP_ENUM,
		715	"mode", num_modes);
		716	for (i = 0; i < num_modes; i++)
		717	drm_property_add_enum(dev->mode_config.tv_mode_property, i,
		718	i, modes[i]);
		719
1179	serge	720	dev->mode_config.tv_brightness_property =
		721	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		722	"brightness", 2);
		723	dev->mode_config.tv_brightness_property->values[0] = 0;
		724	dev->mode_config.tv_brightness_property->values[1] = 100;
		725
		726	dev->mode_config.tv_contrast_property =
		727	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		728	"contrast", 2);
		729	dev->mode_config.tv_contrast_property->values[0] = 0;
		730	dev->mode_config.tv_contrast_property->values[1] = 100;
		731
		732	dev->mode_config.tv_flicker_reduction_property =
		733	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		734	"flicker reduction", 2);
		735	dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
		736	dev->mode_config.tv_flicker_reduction_property->values[1] = 100;
		737
		738	dev->mode_config.tv_overscan_property =
		739	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		740	"overscan", 2);
		741	dev->mode_config.tv_overscan_property->values[0] = 0;
		742	dev->mode_config.tv_overscan_property->values[1] = 100;
		743
		744	dev->mode_config.tv_saturation_property =
		745	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		746	"saturation", 2);
		747	dev->mode_config.tv_saturation_property->values[0] = 0;
		748	dev->mode_config.tv_saturation_property->values[1] = 100;
		749
		750	dev->mode_config.tv_hue_property =
		751	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		752	"hue", 2);
		753	dev->mode_config.tv_hue_property->values[0] = 0;
		754	dev->mode_config.tv_hue_property->values[1] = 100;
		755
1123	serge	756	return 0;
		757	}
		758	EXPORT_SYMBOL(drm_mode_create_tv_properties);
		759
		760	/**
		761	* drm_mode_create_scaling_mode_property - create scaling mode property
		762	* @dev: DRM device
		763	*
		764	* Called by a driver the first time it's needed, must be attached to desired
		765	* connectors.
		766	*/
		767	int drm_mode_create_scaling_mode_property(struct drm_device *dev)
		768	{
		769	struct drm_property *scaling_mode;
		770	int i;
		771
		772	if (dev->mode_config.scaling_mode_property)
		773	return 0;
		774
		775	scaling_mode =
		776	drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
		777	ARRAY_SIZE(drm_scaling_mode_enum_list));
		778	for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
		779	drm_property_add_enum(scaling_mode, i,
		780	drm_scaling_mode_enum_list[i].type,
		781	drm_scaling_mode_enum_list[i].name);
		782
		783	dev->mode_config.scaling_mode_property = scaling_mode;
		784
		785	return 0;
		786	}
		787	EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
		788
		789	/**
		790	* drm_mode_create_dithering_property - create dithering property
		791	* @dev: DRM device
		792	*
		793	* Called by a driver the first time it's needed, must be attached to desired
		794	* connectors.
		795	*/
		796	int drm_mode_create_dithering_property(struct drm_device *dev)
		797	{
		798	struct drm_property *dithering_mode;
		799	int i;
		800
		801	if (dev->mode_config.dithering_mode_property)
		802	return 0;
		803
		804	dithering_mode =
		805	drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
		806	ARRAY_SIZE(drm_dithering_mode_enum_list));
		807	for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
		808	drm_property_add_enum(dithering_mode, i,
		809	drm_dithering_mode_enum_list[i].type,
		810	drm_dithering_mode_enum_list[i].name);
		811	dev->mode_config.dithering_mode_property = dithering_mode;
		812
		813	return 0;
		814	}
		815	EXPORT_SYMBOL(drm_mode_create_dithering_property);
		816
		817	/**
1321	serge	818	* drm_mode_create_dirty_property - create dirty property
		819	* @dev: DRM device
		820	*
		821	* Called by a driver the first time it's needed, must be attached to desired
		822	* connectors.
		823	*/
		824	int drm_mode_create_dirty_info_property(struct drm_device *dev)
		825	{
		826	struct drm_property *dirty_info;
		827	int i;
		828
		829	if (dev->mode_config.dirty_info_property)
		830	return 0;
		831
		832	dirty_info =
		833	drm_property_create(dev, DRM_MODE_PROP_ENUM \|
		834	DRM_MODE_PROP_IMMUTABLE,
		835	"dirty",
		836	ARRAY_SIZE(drm_dirty_info_enum_list));
		837	for (i = 0; i < ARRAY_SIZE(drm_dirty_info_enum_list); i++)
		838	drm_property_add_enum(dirty_info, i,
		839	drm_dirty_info_enum_list[i].type,
		840	drm_dirty_info_enum_list[i].name);
		841	dev->mode_config.dirty_info_property = dirty_info;
		842
		843	return 0;
		844	}
		845	EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
		846
		847	/**
1123	serge	848	* drm_mode_config_init - initialize DRM mode_configuration structure
		849	* @dev: DRM device
		850	*
		851	* LOCKING:
		852	* None, should happen single threaded at init time.
		853	*
		854	* Initialize @dev's mode_config structure, used for tracking the graphics
		855	* configuration of @dev.
		856	*/
		857	void drm_mode_config_init(struct drm_device *dev)
		858	{
1630	serge	859	mutex_init(&dev->mode_config.mutex);
		860	mutex_init(&dev->mode_config.idr_mutex);
1123	serge	861	INIT_LIST_HEAD(&dev->mode_config.fb_list);
		862	INIT_LIST_HEAD(&dev->mode_config.crtc_list);
		863	INIT_LIST_HEAD(&dev->mode_config.connector_list);
		864	INIT_LIST_HEAD(&dev->mode_config.encoder_list);
		865	INIT_LIST_HEAD(&dev->mode_config.property_list);
		866	INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
		867	idr_init(&dev->mode_config.crtc_idr);
		868
1179	serge	869	mutex_lock(&dev->mode_config.mutex);
1123	serge	870	drm_mode_create_standard_connector_properties(dev);
1179	serge	871	mutex_unlock(&dev->mode_config.mutex);
1123	serge	872
		873	/* Just to be sure */
		874	dev->mode_config.num_fb = 0;
		875	dev->mode_config.num_connector = 0;
		876	dev->mode_config.num_crtc = 0;
		877	dev->mode_config.num_encoder = 0;
		878	}
		879	EXPORT_SYMBOL(drm_mode_config_init);
		880
		881	int drm_mode_group_init(struct drm_device dev, struct drm_mode_group group)
		882	{
		883	uint32_t total_objects = 0;
		884
		885	total_objects += dev->mode_config.num_crtc;
		886	total_objects += dev->mode_config.num_connector;
		887	total_objects += dev->mode_config.num_encoder;
		888
		889	group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
		890	if (!group->id_list)
		891	return -ENOMEM;
		892
		893	group->num_crtcs = 0;
		894	group->num_connectors = 0;
		895	group->num_encoders = 0;
		896	return 0;
		897	}
		898
		899	int drm_mode_group_init_legacy_group(struct drm_device *dev,
		900	struct drm_mode_group *group)
		901	{
		902	struct drm_crtc *crtc;
		903	struct drm_encoder *encoder;
		904	struct drm_connector *connector;
		905	int ret;
		906
		907	if ((ret = drm_mode_group_init(dev, group)))
		908	return ret;
		909
		910	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
		911	group->id_list[group->num_crtcs++] = crtc->base.id;
		912
		913	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
		914	group->id_list[group->num_crtcs + group->num_encoders++] =
		915	encoder->base.id;
		916
		917	list_for_each_entry(connector, &dev->mode_config.connector_list, head)
		918	group->id_list[group->num_crtcs + group->num_encoders +
		919	group->num_connectors++] = connector->base.id;
		920
		921	return 0;
		922	}
		923
		924	/**
		925	* drm_mode_config_cleanup - free up DRM mode_config info
		926	* @dev: DRM device
		927	*
		928	* LOCKING:
		929	* Caller must hold mode config lock.
		930	*
		931	* Free up all the connectors and CRTCs associated with this DRM device, then
		932	* free up the framebuffers and associated buffer objects.
		933	*
		934	* FIXME: cleanup any dangling user buffer objects too
		935	*/
		936	void drm_mode_config_cleanup(struct drm_device *dev)
		937	{
		938	struct drm_connector connector, ot;
		939	struct drm_crtc crtc, ct;
		940	struct drm_encoder encoder, enct;
		941	struct drm_framebuffer fb, fbt;
		942	struct drm_property property, pt;
		943
		944	list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
		945	head) {
		946	encoder->funcs->destroy(encoder);
		947	}
		948
		949	list_for_each_entry_safe(connector, ot,
		950	&dev->mode_config.connector_list, head) {
		951	connector->funcs->destroy(connector);
		952	}
		953
		954	list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
		955	head) {
		956	drm_property_destroy(dev, property);
		957	}
		958
		959	list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
		960	fb->funcs->destroy(fb);
		961	}
		962
		963	list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
		964	crtc->funcs->destroy(crtc);
		965	}
		966
		967	}
		968	EXPORT_SYMBOL(drm_mode_config_cleanup);
		969
		970	/**
		971	* drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
		972	* @out: drm_mode_modeinfo struct to return to the user
		973	* @in: drm_display_mode to use
		974	*
		975	* LOCKING:
		976	* None.
		977	*
		978	* Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
		979	* the user.
		980	*/
		981	void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
		982	struct drm_display_mode *in)
		983	{
		984	out->clock = in->clock;
		985	out->hdisplay = in->hdisplay;
		986	out->hsync_start = in->hsync_start;
		987	out->hsync_end = in->hsync_end;
		988	out->htotal = in->htotal;
		989	out->hskew = in->hskew;
		990	out->vdisplay = in->vdisplay;
		991	out->vsync_start = in->vsync_start;
		992	out->vsync_end = in->vsync_end;
		993	out->vtotal = in->vtotal;
		994	out->vscan = in->vscan;
		995	out->vrefresh = in->vrefresh;
		996	out->flags = in->flags;
		997	out->type = in->type;
		998	strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
		999	out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
		1000	}
		1001
		1002	/**
		1003	* drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
		1004	* @out: drm_display_mode to return to the user
		1005	* @in: drm_mode_modeinfo to use
		1006	*
		1007	* LOCKING:
		1008	* None.
		1009	*
		1010	* Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
		1011	* the caller.
		1012	*/
		1013	void drm_crtc_convert_umode(struct drm_display_mode *out,
		1014	struct drm_mode_modeinfo *in)
		1015	{
		1016	out->clock = in->clock;
		1017	out->hdisplay = in->hdisplay;
		1018	out->hsync_start = in->hsync_start;
		1019	out->hsync_end = in->hsync_end;
		1020	out->htotal = in->htotal;
		1021	out->hskew = in->hskew;
		1022	out->vdisplay = in->vdisplay;
		1023	out->vsync_start = in->vsync_start;
		1024	out->vsync_end = in->vsync_end;
		1025	out->vtotal = in->vtotal;
		1026	out->vscan = in->vscan;
		1027	out->vrefresh = in->vrefresh;
		1028	out->flags = in->flags;
		1029	out->type = in->type;
		1030	strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
		1031	out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
		1032	}
		1033
		1034
		1035	#if 0
		1036	/**
		1037	* drm_mode_getresources - get graphics configuration
		1038	* @inode: inode from the ioctl
		1039	* @filp: file * from the ioctl
		1040	* @cmd: cmd from ioctl
		1041	* @arg: arg from ioctl
		1042	*
		1043	* LOCKING:
		1044	* Takes mode config lock.
		1045	*
		1046	* Construct a set of configuration description structures and return
		1047	* them to the user, including CRTC, connector and framebuffer configuration.
		1048	*
		1049	* Called by the user via ioctl.
		1050	*
		1051	* RETURNS:
		1052	* Zero on success, errno on failure.
		1053	*/
		1054	int drm_mode_getresources(struct drm_device dev, void data,
		1055	struct drm_file *file_priv)
		1056	{
		1057	struct drm_mode_card_res *card_res = data;
		1058	struct list_head *lh;
		1059	struct drm_framebuffer *fb;
		1060	struct drm_connector *connector;
		1061	struct drm_crtc *crtc;
		1062	struct drm_encoder *encoder;
		1063	int ret = 0;
		1064	int connector_count = 0;
		1065	int crtc_count = 0;
		1066	int fb_count = 0;
		1067	int encoder_count = 0;
		1068	int copied = 0, i;
		1069	uint32_t __user *fb_id;
		1070	uint32_t __user *crtc_id;
		1071	uint32_t __user *connector_id;
		1072	uint32_t __user *encoder_id;
		1073	struct drm_mode_group *mode_group;
		1074
1963	serge	1075	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1076	return -EINVAL;
		1077
1123	serge	1078	mutex_lock(&dev->mode_config.mutex);
		1079
		1080	/*
		1081	* For the non-control nodes we need to limit the list of resources
		1082	* by IDs in the group list for this node
		1083	*/
		1084	list_for_each(lh, &file_priv->fbs)
		1085	fb_count++;
		1086
		1087	mode_group = &file_priv->master->minor->mode_group;
		1088	if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
		1089
		1090	list_for_each(lh, &dev->mode_config.crtc_list)
		1091	crtc_count++;
		1092
		1093	list_for_each(lh, &dev->mode_config.connector_list)
		1094	connector_count++;
		1095
		1096	list_for_each(lh, &dev->mode_config.encoder_list)
		1097	encoder_count++;
		1098	} else {
		1099
		1100	crtc_count = mode_group->num_crtcs;
		1101	connector_count = mode_group->num_connectors;
		1102	encoder_count = mode_group->num_encoders;
		1103	}
		1104
		1105	card_res->max_height = dev->mode_config.max_height;
		1106	card_res->min_height = dev->mode_config.min_height;
		1107	card_res->max_width = dev->mode_config.max_width;
		1108	card_res->min_width = dev->mode_config.min_width;
		1109
		1110	/* handle this in 4 parts */
		1111	/* FBs */
		1112	if (card_res->count_fbs >= fb_count) {
		1113	copied = 0;
		1114	fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1963	serge	1115	list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1123	serge	1116	if (put_user(fb->base.id, fb_id + copied)) {
		1117	ret = -EFAULT;
		1118	goto out;
		1119	}
		1120	copied++;
		1121	}
		1122	}
		1123	card_res->count_fbs = fb_count;
		1124
		1125	/* CRTCs */
		1126	if (card_res->count_crtcs >= crtc_count) {
		1127	copied = 0;
		1128	crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
		1129	if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
		1130	list_for_each_entry(crtc, &dev->mode_config.crtc_list,
		1131	head) {
1963	serge	1132	DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1123	serge	1133	if (put_user(crtc->base.id, crtc_id + copied)) {
		1134	ret = -EFAULT;
		1135	goto out;
		1136	}
		1137	copied++;
		1138	}
		1139	} else {
		1140	for (i = 0; i < mode_group->num_crtcs; i++) {
		1141	if (put_user(mode_group->id_list[i],
		1142	crtc_id + copied)) {
		1143	ret = -EFAULT;
		1144	goto out;
		1145	}
		1146	copied++;
		1147	}
		1148	}
		1149	}
		1150	card_res->count_crtcs = crtc_count;
		1151
		1152	/* Encoders */
		1153	if (card_res->count_encoders >= encoder_count) {
		1154	copied = 0;
		1155	encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
		1156	if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
		1157	list_for_each_entry(encoder,
		1158	&dev->mode_config.encoder_list,
		1159	head) {
1963	serge	1160	DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
		1161	drm_get_encoder_name(encoder));
1123	serge	1162	if (put_user(encoder->base.id, encoder_id +
		1163	copied)) {
		1164	ret = -EFAULT;
		1165	goto out;
		1166	}
		1167	copied++;
		1168	}
		1169	} else {
		1170	for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
		1171	if (put_user(mode_group->id_list[i],
		1172	encoder_id + copied)) {
		1173	ret = -EFAULT;
		1174	goto out;
		1175	}
		1176	copied++;
		1177	}
		1178
		1179	}
		1180	}
		1181	card_res->count_encoders = encoder_count;
		1182
		1183	/* Connectors */
		1184	if (card_res->count_connectors >= connector_count) {
		1185	copied = 0;
		1186	connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
		1187	if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
		1188	list_for_each_entry(connector,
		1189	&dev->mode_config.connector_list,
		1190	head) {
1963	serge	1191	DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
		1192	connector->base.id,
		1193	drm_get_connector_name(connector));
1123	serge	1194	if (put_user(connector->base.id,
		1195	connector_id + copied)) {
		1196	ret = -EFAULT;
		1197	goto out;
		1198	}
		1199	copied++;
		1200	}
		1201	} else {
		1202	int start = mode_group->num_crtcs +
		1203	mode_group->num_encoders;
		1204	for (i = start; i < start + mode_group->num_connectors; i++) {
		1205	if (put_user(mode_group->id_list[i],
		1206	connector_id + copied)) {
		1207	ret = -EFAULT;
		1208	goto out;
		1209	}
		1210	copied++;
		1211	}
		1212	}
		1213	}
		1214	card_res->count_connectors = connector_count;
		1215
1963	serge	1216	DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
1123	serge	1217	card_res->count_connectors, card_res->count_encoders);
		1218
		1219	out:
		1220	mutex_unlock(&dev->mode_config.mutex);
		1221	return ret;
		1222	}
		1223
		1224	/**
		1225	* drm_mode_getcrtc - get CRTC configuration
		1226	* @inode: inode from the ioctl
		1227	* @filp: file * from the ioctl
		1228	* @cmd: cmd from ioctl
		1229	* @arg: arg from ioctl
		1230	*
		1231	* LOCKING:
		1232	* Caller? (FIXME)
		1233	*
		1234	* Construct a CRTC configuration structure to return to the user.
		1235	*
		1236	* Called by the user via ioctl.
		1237	*
		1238	* RETURNS:
		1239	* Zero on success, errno on failure.
		1240	*/
		1241	int drm_mode_getcrtc(struct drm_device *dev,
		1242	void data, struct drm_file file_priv)
		1243	{
		1244	struct drm_mode_crtc *crtc_resp = data;
		1245	struct drm_crtc *crtc;
		1246	struct drm_mode_object *obj;
		1247	int ret = 0;
		1248
1963	serge	1249	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1250	return -EINVAL;
		1251
1123	serge	1252	mutex_lock(&dev->mode_config.mutex);
		1253
		1254	obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
		1255	DRM_MODE_OBJECT_CRTC);
		1256	if (!obj) {
		1257	ret = -EINVAL;
		1258	goto out;
		1259	}
		1260	crtc = obj_to_crtc(obj);
		1261
		1262	crtc_resp->x = crtc->x;
		1263	crtc_resp->y = crtc->y;
		1264	crtc_resp->gamma_size = crtc->gamma_size;
		1265	if (crtc->fb)
		1266	crtc_resp->fb_id = crtc->fb->base.id;
		1267	else
		1268	crtc_resp->fb_id = 0;
		1269
		1270	if (crtc->enabled) {
		1271
		1272	drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
		1273	crtc_resp->mode_valid = 1;
		1274
		1275	} else {
		1276	crtc_resp->mode_valid = 0;
		1277	}
		1278
		1279	out:
		1280	mutex_unlock(&dev->mode_config.mutex);
		1281	return ret;
		1282	}
		1283
		1284	/**
		1285	* drm_mode_getconnector - get connector configuration
		1286	* @inode: inode from the ioctl
		1287	* @filp: file * from the ioctl
		1288	* @cmd: cmd from ioctl
		1289	* @arg: arg from ioctl
		1290	*
		1291	* LOCKING:
		1292	* Caller? (FIXME)
		1293	*
		1294	* Construct a connector configuration structure to return to the user.
		1295	*
		1296	* Called by the user via ioctl.
		1297	*
		1298	* RETURNS:
		1299	* Zero on success, errno on failure.
		1300	*/
		1301	int drm_mode_getconnector(struct drm_device dev, void data,
		1302	struct drm_file *file_priv)
		1303	{
		1304	struct drm_mode_get_connector *out_resp = data;
		1305	struct drm_mode_object *obj;
		1306	struct drm_connector *connector;
		1307	struct drm_display_mode *mode;
		1308	int mode_count = 0;
		1309	int props_count = 0;
		1310	int encoders_count = 0;
		1311	int ret = 0;
		1312	int copied = 0;
		1313	int i;
		1314	struct drm_mode_modeinfo u_mode;
		1315	struct drm_mode_modeinfo __user *mode_ptr;
		1316	uint32_t __user *prop_ptr;
		1317	uint64_t __user *prop_values;
		1318	uint32_t __user *encoder_ptr;
		1319
1963	serge	1320	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1321	return -EINVAL;
		1322
1123	serge	1323	memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
		1324
1963	serge	1325	DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
1123	serge	1326
		1327	mutex_lock(&dev->mode_config.mutex);
		1328
		1329	obj = drm_mode_object_find(dev, out_resp->connector_id,
		1330	DRM_MODE_OBJECT_CONNECTOR);
		1331	if (!obj) {
		1332	ret = -EINVAL;
		1333	goto out;
		1334	}
		1335	connector = obj_to_connector(obj);
		1336
		1337	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		1338	if (connector->property_ids[i] != 0) {
		1339	props_count++;
		1340	}
		1341	}
		1342
		1343	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		1344	if (connector->encoder_ids[i] != 0) {
		1345	encoders_count++;
		1346	}
		1347	}
		1348
		1349	if (out_resp->count_modes == 0) {
		1350	connector->funcs->fill_modes(connector,
		1351	dev->mode_config.max_width,
		1352	dev->mode_config.max_height);
		1353	}
		1354
		1355	/* delayed so we get modes regardless of pre-fill_modes state */
		1356	list_for_each_entry(mode, &connector->modes, head)
		1357	mode_count++;
		1358
		1359	out_resp->connector_id = connector->base.id;
		1360	out_resp->connector_type = connector->connector_type;
		1361	out_resp->connector_type_id = connector->connector_type_id;
		1362	out_resp->mm_width = connector->display_info.width_mm;
		1363	out_resp->mm_height = connector->display_info.height_mm;
		1364	out_resp->subpixel = connector->display_info.subpixel_order;
		1365	out_resp->connection = connector->status;
		1366	if (connector->encoder)
		1367	out_resp->encoder_id = connector->encoder->base.id;
		1368	else
		1369	out_resp->encoder_id = 0;
		1370
		1371	/*
		1372	* This ioctl is called twice, once to determine how much space is
		1373	* needed, and the 2nd time to fill it.
		1374	*/
		1375	if ((out_resp->count_modes >= mode_count) && mode_count) {
		1376	copied = 0;
		1377	mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
		1378	list_for_each_entry(mode, &connector->modes, head) {
		1379	drm_crtc_convert_to_umode(&u_mode, mode);
		1380	if (copy_to_user(mode_ptr + copied,
		1381	&u_mode, sizeof(u_mode))) {
		1382	ret = -EFAULT;
		1383	goto out;
		1384	}
		1385	copied++;
		1386	}
		1387	}
		1388	out_resp->count_modes = mode_count;
		1389
		1390	if ((out_resp->count_props >= props_count) && props_count) {
		1391	copied = 0;
		1392	prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
		1393	prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
		1394	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		1395	if (connector->property_ids[i] != 0) {
		1396	if (put_user(connector->property_ids[i],
		1397	prop_ptr + copied)) {
		1398	ret = -EFAULT;
		1399	goto out;
		1400	}
		1401
		1402	if (put_user(connector->property_values[i],
		1403	prop_values + copied)) {
		1404	ret = -EFAULT;
		1405	goto out;
		1406	}
		1407	copied++;
		1408	}
		1409	}
		1410	}
		1411	out_resp->count_props = props_count;
		1412
		1413	if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
		1414	copied = 0;
		1415	encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
		1416	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		1417	if (connector->encoder_ids[i] != 0) {
		1418	if (put_user(connector->encoder_ids[i],
		1419	encoder_ptr + copied)) {
		1420	ret = -EFAULT;
		1421	goto out;
		1422	}
		1423	copied++;
		1424	}
		1425	}
		1426	}
		1427	out_resp->count_encoders = encoders_count;
		1428
		1429	out:
		1430	mutex_unlock(&dev->mode_config.mutex);
		1431	return ret;
		1432	}
		1433
		1434	int drm_mode_getencoder(struct drm_device dev, void data,
		1435	struct drm_file *file_priv)
		1436	{
		1437	struct drm_mode_get_encoder *enc_resp = data;
		1438	struct drm_mode_object *obj;
		1439	struct drm_encoder *encoder;
		1440	int ret = 0;
		1441
1963	serge	1442	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1443	return -EINVAL;
		1444
1123	serge	1445	mutex_lock(&dev->mode_config.mutex);
		1446	obj = drm_mode_object_find(dev, enc_resp->encoder_id,
		1447	DRM_MODE_OBJECT_ENCODER);
		1448	if (!obj) {
		1449	ret = -EINVAL;
		1450	goto out;
		1451	}
		1452	encoder = obj_to_encoder(obj);
		1453
		1454	if (encoder->crtc)
		1455	enc_resp->crtc_id = encoder->crtc->base.id;
		1456	else
		1457	enc_resp->crtc_id = 0;
		1458	enc_resp->encoder_type = encoder->encoder_type;
		1459	enc_resp->encoder_id = encoder->base.id;
		1460	enc_resp->possible_crtcs = encoder->possible_crtcs;
		1461	enc_resp->possible_clones = encoder->possible_clones;
		1462
		1463	out:
		1464	mutex_unlock(&dev->mode_config.mutex);
		1465	return ret;
		1466	}
		1467
		1468	/**
		1469	* drm_mode_setcrtc - set CRTC configuration
		1470	* @inode: inode from the ioctl
		1471	* @filp: file * from the ioctl
		1472	* @cmd: cmd from ioctl
		1473	* @arg: arg from ioctl
		1474	*
		1475	* LOCKING:
		1476	* Caller? (FIXME)
		1477	*
		1478	* Build a new CRTC configuration based on user request.
		1479	*
		1480	* Called by the user via ioctl.
		1481	*
		1482	* RETURNS:
		1483	* Zero on success, errno on failure.
		1484	*/
		1485	int drm_mode_setcrtc(struct drm_device dev, void data,
		1486	struct drm_file *file_priv)
		1487	{
		1488	struct drm_mode_config *config = &dev->mode_config;
		1489	struct drm_mode_crtc *crtc_req = data;
		1490	struct drm_mode_object *obj;
		1491	struct drm_crtc crtc, crtcfb;
		1492	struct drm_connector *connector_set = NULL, connector;
		1493	struct drm_framebuffer *fb = NULL;
		1494	struct drm_display_mode *mode = NULL;
		1495	struct drm_mode_set set;
		1496	uint32_t __user *set_connectors_ptr;
		1497	int ret = 0;
		1498	int i;
		1499
1963	serge	1500	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1501	return -EINVAL;
		1502
1123	serge	1503	mutex_lock(&dev->mode_config.mutex);
		1504	obj = drm_mode_object_find(dev, crtc_req->crtc_id,
		1505	DRM_MODE_OBJECT_CRTC);
		1506	if (!obj) {
1179	serge	1507	DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1123	serge	1508	ret = -EINVAL;
		1509	goto out;
		1510	}
		1511	crtc = obj_to_crtc(obj);
1963	serge	1512	DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1123	serge	1513
		1514	if (crtc_req->mode_valid) {
		1515	/* If we have a mode we need a framebuffer. */
		1516	/* If we pass -1, set the mode with the currently bound fb */
		1517	if (crtc_req->fb_id == -1) {
		1518	list_for_each_entry(crtcfb,
		1519	&dev->mode_config.crtc_list, head) {
		1520	if (crtcfb == crtc) {
1179	serge	1521	DRM_DEBUG_KMS("Using current fb for "
		1522	"setmode\n");
1123	serge	1523	fb = crtc->fb;
		1524	}
		1525	}
		1526	} else {
		1527	obj = drm_mode_object_find(dev, crtc_req->fb_id,
		1528	DRM_MODE_OBJECT_FB);
		1529	if (!obj) {
1179	serge	1530	DRM_DEBUG_KMS("Unknown FB ID%d\n",
		1531	crtc_req->fb_id);
1123	serge	1532	ret = -EINVAL;
		1533	goto out;
		1534	}
		1535	fb = obj_to_fb(obj);
		1536	}
		1537
		1538	mode = drm_mode_create(dev);
		1539	drm_crtc_convert_umode(mode, &crtc_req->mode);
		1540	drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
		1541	}
		1542
		1543	if (crtc_req->count_connectors == 0 && mode) {
1179	serge	1544	DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
1123	serge	1545	ret = -EINVAL;
		1546	goto out;
		1547	}
		1548
1179	serge	1549	if (crtc_req->count_connectors > 0 && (!mode \|\| !fb)) {
		1550	DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
1123	serge	1551	crtc_req->count_connectors);
		1552	ret = -EINVAL;
		1553	goto out;
		1554	}
		1555
		1556	if (crtc_req->count_connectors > 0) {
		1557	u32 out_id;
		1558
		1559	/* Avoid unbounded kernel memory allocation */
		1560	if (crtc_req->count_connectors > config->num_connector) {
		1561	ret = -EINVAL;
		1562	goto out;
		1563	}
		1564
		1565	connector_set = kmalloc(crtc_req->count_connectors *
		1566	sizeof(struct drm_connector *),
		1567	GFP_KERNEL);
		1568	if (!connector_set) {
		1569	ret = -ENOMEM;
		1570	goto out;
		1571	}
		1572
		1573	for (i = 0; i < crtc_req->count_connectors; i++) {
		1574	set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
		1575	if (get_user(out_id, &set_connectors_ptr[i])) {
		1576	ret = -EFAULT;
		1577	goto out;
		1578	}
		1579
		1580	obj = drm_mode_object_find(dev, out_id,
		1581	DRM_MODE_OBJECT_CONNECTOR);
		1582	if (!obj) {
1179	serge	1583	DRM_DEBUG_KMS("Connector id %d unknown\n",
		1584	out_id);
1123	serge	1585	ret = -EINVAL;
		1586	goto out;
		1587	}
		1588	connector = obj_to_connector(obj);
1963	serge	1589	DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
		1590	connector->base.id,
		1591	drm_get_connector_name(connector));
1123	serge	1592
		1593	connector_set[i] = connector;
		1594	}
		1595	}
		1596
		1597	set.crtc = crtc;
		1598	set.x = crtc_req->x;
		1599	set.y = crtc_req->y;
		1600	set.mode = mode;
		1601	set.connectors = connector_set;
		1602	set.num_connectors = crtc_req->count_connectors;
1179	serge	1603	set.fb = fb;
1123	serge	1604	ret = crtc->funcs->set_config(&set);
		1605
		1606	out:
		1607	kfree(connector_set);
		1608	mutex_unlock(&dev->mode_config.mutex);
		1609	return ret;
		1610	}
		1611
		1612	int drm_mode_cursor_ioctl(struct drm_device *dev,
		1613	void data, struct drm_file file_priv)
		1614	{
		1615	struct drm_mode_cursor *req = data;
		1616	struct drm_mode_object *obj;
		1617	struct drm_crtc *crtc;
		1618	int ret = 0;
		1619
1963	serge	1620	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1621	return -EINVAL;
		1622
1123	serge	1623	if (!req->flags) {
		1624	DRM_ERROR("no operation set\n");
		1625	return -EINVAL;
		1626	}
		1627
		1628	mutex_lock(&dev->mode_config.mutex);
		1629	obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
		1630	if (!obj) {
1179	serge	1631	DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
1123	serge	1632	ret = -EINVAL;
		1633	goto out;
		1634	}
		1635	crtc = obj_to_crtc(obj);
		1636
		1637	if (req->flags & DRM_MODE_CURSOR_BO) {
		1638	if (!crtc->funcs->cursor_set) {
		1639	DRM_ERROR("crtc does not support cursor\n");
		1640	ret = -ENXIO;
		1641	goto out;
		1642	}
		1643	/* Turns off the cursor if handle is 0 */
		1644	ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
		1645	req->width, req->height);
		1646	}
		1647
		1648	if (req->flags & DRM_MODE_CURSOR_MOVE) {
		1649	if (crtc->funcs->cursor_move) {
		1650	ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
		1651	} else {
		1652	DRM_ERROR("crtc does not support cursor\n");
		1653	ret = -EFAULT;
		1654	goto out;
		1655	}
		1656	}
		1657	out:
		1658	mutex_unlock(&dev->mode_config.mutex);
		1659	return ret;
		1660	}
		1661
		1662	/**
		1663	* drm_mode_addfb - add an FB to the graphics configuration
		1664	* @inode: inode from the ioctl
		1665	* @filp: file * from the ioctl
		1666	* @cmd: cmd from ioctl
		1667	* @arg: arg from ioctl
		1668	*
		1669	* LOCKING:
		1670	* Takes mode config lock.
		1671	*
		1672	* Add a new FB to the specified CRTC, given a user request.
		1673	*
		1674	* Called by the user via ioctl.
		1675	*
		1676	* RETURNS:
		1677	* Zero on success, errno on failure.
		1678	*/
		1679	int drm_mode_addfb(struct drm_device *dev,
		1680	void data, struct drm_file file_priv)
		1681	{
		1682	struct drm_mode_fb_cmd *r = data;
		1683	struct drm_mode_config *config = &dev->mode_config;
		1684	struct drm_framebuffer *fb;
		1685	int ret = 0;
		1686
1963	serge	1687	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1688	return -EINVAL;
		1689
1123	serge	1690	if ((config->min_width > r->width) \|\| (r->width > config->max_width)) {
		1691	DRM_ERROR("mode new framebuffer width not within limits\n");
		1692	return -EINVAL;
		1693	}
		1694	if ((config->min_height > r->height) \|\| (r->height > config->max_height)) {
		1695	DRM_ERROR("mode new framebuffer height not within limits\n");
		1696	return -EINVAL;
		1697	}
		1698
		1699	mutex_lock(&dev->mode_config.mutex);
		1700
1963	serge	1701	/* TODO check buffer is sufficiently large */
1123	serge	1702	/* TODO setup destructor callback */
		1703
		1704	fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
1963	serge	1705	if (IS_ERR(fb)) {
1123	serge	1706	DRM_ERROR("could not create framebuffer\n");
1963	serge	1707	ret = PTR_ERR(fb);
1123	serge	1708	goto out;
		1709	}
		1710
		1711	r->fb_id = fb->base.id;
		1712	list_add(&fb->filp_head, &file_priv->fbs);
1963	serge	1713	DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
1123	serge	1714
		1715	out:
		1716	mutex_unlock(&dev->mode_config.mutex);
		1717	return ret;
		1718	}
		1719
		1720	/**
		1721	* drm_mode_rmfb - remove an FB from the configuration
		1722	* @inode: inode from the ioctl
		1723	* @filp: file * from the ioctl
		1724	* @cmd: cmd from ioctl
		1725	* @arg: arg from ioctl
		1726	*
		1727	* LOCKING:
		1728	* Takes mode config lock.
		1729	*
		1730	* Remove the FB specified by the user.
		1731	*
		1732	* Called by the user via ioctl.
		1733	*
		1734	* RETURNS:
		1735	* Zero on success, errno on failure.
		1736	*/
		1737	int drm_mode_rmfb(struct drm_device *dev,
		1738	void data, struct drm_file file_priv)
		1739	{
		1740	struct drm_mode_object *obj;
		1741	struct drm_framebuffer *fb = NULL;
		1742	struct drm_framebuffer *fbl = NULL;
		1743	uint32_t *id = data;
		1744	int ret = 0;
		1745	int found = 0;
		1746
1963	serge	1747	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1748	return -EINVAL;
		1749
1123	serge	1750	mutex_lock(&dev->mode_config.mutex);
		1751	obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
1963	serge	1752	/* TODO check that we really get a framebuffer back. */
1123	serge	1753	if (!obj) {
		1754	DRM_ERROR("mode invalid framebuffer id\n");
		1755	ret = -EINVAL;
		1756	goto out;
		1757	}
		1758	fb = obj_to_fb(obj);
		1759
		1760	list_for_each_entry(fbl, &file_priv->fbs, filp_head)
		1761	if (fb == fbl)
		1762	found = 1;
		1763
		1764	if (!found) {
		1765	DRM_ERROR("tried to remove a fb that we didn't own\n");
		1766	ret = -EINVAL;
		1767	goto out;
		1768	}
		1769
		1770	/* TODO release all crtc connected to the framebuffer */
		1771	/* TODO unhock the destructor from the buffer object */
		1772
		1773	list_del(&fb->filp_head);
		1774	fb->funcs->destroy(fb);
		1775
		1776	out:
		1777	mutex_unlock(&dev->mode_config.mutex);
		1778	return ret;
		1779	}
		1780
		1781	/**
		1782	* drm_mode_getfb - get FB info
		1783	* @inode: inode from the ioctl
		1784	* @filp: file * from the ioctl
		1785	* @cmd: cmd from ioctl
		1786	* @arg: arg from ioctl
		1787	*
		1788	* LOCKING:
		1789	* Caller? (FIXME)
		1790	*
		1791	* Lookup the FB given its ID and return info about it.
		1792	*
		1793	* Called by the user via ioctl.
		1794	*
		1795	* RETURNS:
		1796	* Zero on success, errno on failure.
		1797	*/
		1798	int drm_mode_getfb(struct drm_device *dev,
		1799	void data, struct drm_file file_priv)
		1800	{
		1801	struct drm_mode_fb_cmd *r = data;
		1802	struct drm_mode_object *obj;
		1803	struct drm_framebuffer *fb;
		1804	int ret = 0;
		1805
1963	serge	1806	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1807	return -EINVAL;
		1808
1123	serge	1809	mutex_lock(&dev->mode_config.mutex);
		1810	obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
		1811	if (!obj) {
		1812	DRM_ERROR("invalid framebuffer id\n");
		1813	ret = -EINVAL;
		1814	goto out;
		1815	}
		1816	fb = obj_to_fb(obj);
		1817
		1818	r->height = fb->height;
		1819	r->width = fb->width;
		1820	r->depth = fb->depth;
		1821	r->bpp = fb->bits_per_pixel;
		1822	r->pitch = fb->pitch;
		1823	fb->funcs->create_handle(fb, file_priv, &r->handle);
		1824
		1825	out:
		1826	mutex_unlock(&dev->mode_config.mutex);
		1827	return ret;
		1828	}
		1829
1412	serge	1830	int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
		1831	void data, struct drm_file file_priv)
		1832	{
		1833	struct drm_clip_rect __user *clips_ptr;
		1834	struct drm_clip_rect *clips = NULL;
		1835	struct drm_mode_fb_dirty_cmd *r = data;
		1836	struct drm_mode_object *obj;
		1837	struct drm_framebuffer *fb;
		1838	unsigned flags;
		1839	int num_clips;
		1840	int ret = 0;
		1841
1963	serge	1842	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1843	return -EINVAL;
		1844
1412	serge	1845	mutex_lock(&dev->mode_config.mutex);
		1846	obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
		1847	if (!obj) {
		1848	DRM_ERROR("invalid framebuffer id\n");
		1849	ret = -EINVAL;
		1850	goto out_err1;
		1851	}
		1852	fb = obj_to_fb(obj);
		1853
		1854	num_clips = r->num_clips;
		1855	clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr;
		1856
		1857	if (!num_clips != !clips_ptr) {
		1858	ret = -EINVAL;
		1859	goto out_err1;
		1860	}
		1861
		1862	flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
		1863
		1864	/* If userspace annotates copy, clips must come in pairs */
		1865	if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
		1866	ret = -EINVAL;
		1867	goto out_err1;
		1868	}
		1869
		1870	if (num_clips && clips_ptr) {
		1871	clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
		1872	if (!clips) {
		1873	ret = -ENOMEM;
		1874	goto out_err1;
		1875	}
		1876
		1877	ret = copy_from_user(clips, clips_ptr,
		1878	num_clips * sizeof(*clips));
1963	serge	1879	if (ret) {
		1880	ret = -EFAULT;
1412	serge	1881	goto out_err2;
		1882	}
1963	serge	1883	}
1412	serge	1884
		1885	if (fb->funcs->dirty) {
1963	serge	1886	ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
		1887	clips, num_clips);
1412	serge	1888	} else {
		1889	ret = -ENOSYS;
		1890	goto out_err2;
		1891	}
		1892
		1893	out_err2:
		1894	kfree(clips);
		1895	out_err1:
		1896	mutex_unlock(&dev->mode_config.mutex);
		1897	return ret;
		1898	}
		1899
		1900
1123	serge	1901	/**
		1902	* drm_fb_release - remove and free the FBs on this file
		1903	* @filp: file * from the ioctl
		1904	*
		1905	* LOCKING:
		1906	* Takes mode config lock.
		1907	*
		1908	* Destroy all the FBs associated with @filp.
		1909	*
		1910	* Called by the user via ioctl.
		1911	*
		1912	* RETURNS:
		1913	* Zero on success, errno on failure.
		1914	*/
		1915	void drm_fb_release(struct drm_file *priv)
		1916	{
		1917	struct drm_device *dev = priv->minor->dev;
		1918	struct drm_framebuffer fb, tfb;
		1919
		1920	mutex_lock(&dev->mode_config.mutex);
		1921	list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
		1922	list_del(&fb->filp_head);
		1923	fb->funcs->destroy(fb);
		1924	}
		1925	mutex_unlock(&dev->mode_config.mutex);
		1926	}
		1927	#endif
		1928
		1929	/**
		1930	* drm_mode_attachmode - add a mode to the user mode list
		1931	* @dev: DRM device
		1932	* @connector: connector to add the mode to
		1933	* @mode: mode to add
		1934	*
		1935	* Add @mode to @connector's user mode list.
		1936	*/
		1937	static int drm_mode_attachmode(struct drm_device *dev,
		1938	struct drm_connector *connector,
		1939	struct drm_display_mode *mode)
		1940	{
		1941	int ret = 0;
		1942
		1943	list_add_tail(&mode->head, &connector->user_modes);
		1944	return ret;
		1945	}
		1946
		1947	int drm_mode_attachmode_crtc(struct drm_device dev, struct drm_crtc crtc,
		1948	struct drm_display_mode *mode)
		1949	{
		1950	struct drm_connector *connector;
		1951	int ret = 0;
		1952	struct drm_display_mode *dup_mode;
		1953	int need_dup = 0;
		1954	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		1955	if (!connector->encoder)
		1956	break;
		1957	if (connector->encoder->crtc == crtc) {
		1958	if (need_dup)
		1959	dup_mode = drm_mode_duplicate(dev, mode);
		1960	else
		1961	dup_mode = mode;
		1962	ret = drm_mode_attachmode(dev, connector, dup_mode);
		1963	if (ret)
		1964	return ret;
		1965	need_dup = 1;
		1966	}
		1967	}
		1968	return 0;
		1969	}
		1970	EXPORT_SYMBOL(drm_mode_attachmode_crtc);
		1971
		1972	static int drm_mode_detachmode(struct drm_device *dev,
		1973	struct drm_connector *connector,
		1974	struct drm_display_mode *mode)
		1975	{
		1976	int found = 0;
		1977	int ret = 0;
		1978	struct drm_display_mode match_mode, t;
		1979
		1980	list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
		1981	if (drm_mode_equal(match_mode, mode)) {
		1982	list_del(&match_mode->head);
		1983	drm_mode_destroy(dev, match_mode);
		1984	found = 1;
		1985	break;
		1986	}
		1987	}
		1988
		1989	if (!found)
		1990	ret = -EINVAL;
		1991
		1992	return ret;
		1993	}
		1994
		1995	int drm_mode_detachmode_crtc(struct drm_device dev, struct drm_display_mode mode)
		1996	{
		1997	struct drm_connector *connector;
		1998
		1999	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		2000	drm_mode_detachmode(dev, connector, mode);
		2001	}
		2002	return 0;
		2003	}
		2004	EXPORT_SYMBOL(drm_mode_detachmode_crtc);
		2005
		2006	#if 0
		2007
		2008	/**
		2009	* drm_fb_attachmode - Attach a user mode to an connector
		2010	* @inode: inode from the ioctl
		2011	* @filp: file * from the ioctl
		2012	* @cmd: cmd from ioctl
		2013	* @arg: arg from ioctl
		2014	*
		2015	* This attaches a user specified mode to an connector.
		2016	* Called by the user via ioctl.
		2017	*
		2018	* RETURNS:
		2019	* Zero on success, errno on failure.
		2020	*/
		2021	int drm_mode_attachmode_ioctl(struct drm_device *dev,
		2022	void data, struct drm_file file_priv)
		2023	{
		2024	struct drm_mode_mode_cmd *mode_cmd = data;
		2025	struct drm_connector *connector;
		2026	struct drm_display_mode *mode;
		2027	struct drm_mode_object *obj;
		2028	struct drm_mode_modeinfo *umode = &mode_cmd->mode;
		2029	int ret = 0;
		2030
1963	serge	2031	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		2032	return -EINVAL;
		2033
1123	serge	2034	mutex_lock(&dev->mode_config.mutex);
		2035
		2036	obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
		2037	if (!obj) {
		2038	ret = -EINVAL;
		2039	goto out;
		2040	}
		2041	connector = obj_to_connector(obj);
		2042
		2043	mode = drm_mode_create(dev);
		2044	if (!mode) {
		2045	ret = -ENOMEM;
		2046	goto out;
		2047	}
		2048
		2049	drm_crtc_convert_umode(mode, umode);
		2050
		2051	ret = drm_mode_attachmode(dev, connector, mode);
		2052	out:
		2053	mutex_unlock(&dev->mode_config.mutex);
		2054	return ret;
		2055	}
		2056
		2057
		2058	/**
		2059	* drm_fb_detachmode - Detach a user specified mode from an connector
		2060	* @inode: inode from the ioctl
		2061	* @filp: file * from the ioctl
		2062	* @cmd: cmd from ioctl
		2063	* @arg: arg from ioctl
		2064	*
		2065	* Called by the user via ioctl.
		2066	*
		2067	* RETURNS:
		2068	* Zero on success, errno on failure.
		2069	*/
		2070	int drm_mode_detachmode_ioctl(struct drm_device *dev,
		2071	void data, struct drm_file file_priv)
		2072	{
		2073	struct drm_mode_object *obj;
		2074	struct drm_mode_mode_cmd *mode_cmd = data;
		2075	struct drm_connector *connector;
		2076	struct drm_display_mode mode;
		2077	struct drm_mode_modeinfo *umode = &mode_cmd->mode;
		2078	int ret = 0;
		2079
1963	serge	2080	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		2081	return -EINVAL;
		2082
1123	serge	2083	mutex_lock(&dev->mode_config.mutex);
		2084
		2085	obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
		2086	if (!obj) {
		2087	ret = -EINVAL;
		2088	goto out;
		2089	}
		2090	connector = obj_to_connector(obj);
		2091
		2092	drm_crtc_convert_umode(&mode, umode);
		2093	ret = drm_mode_detachmode(dev, connector, &mode);
		2094	out:
		2095	mutex_unlock(&dev->mode_config.mutex);
		2096	return ret;
		2097	}
		2098	#endif
		2099
		2100	struct drm_property drm_property_create(struct drm_device dev, int flags,
		2101	const char *name, int num_values)
		2102	{
		2103	struct drm_property *property = NULL;
		2104
		2105	property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
		2106	if (!property)
		2107	return NULL;
		2108
		2109	if (num_values) {
		2110	property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
		2111	if (!property->values)
		2112	goto fail;
		2113	}
		2114
		2115	drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
		2116	property->flags = flags;
		2117	property->num_values = num_values;
		2118	INIT_LIST_HEAD(&property->enum_blob_list);
		2119
		2120	if (name)
		2121	strncpy(property->name, name, DRM_PROP_NAME_LEN);
		2122
		2123	list_add_tail(&property->head, &dev->mode_config.property_list);
		2124	return property;
		2125	fail:
		2126	kfree(property);
		2127	return NULL;
		2128	}
		2129	EXPORT_SYMBOL(drm_property_create);
		2130
		2131	int drm_property_add_enum(struct drm_property *property, int index,
		2132	uint64_t value, const char *name)
		2133	{
		2134	struct drm_property_enum *prop_enum;
		2135
		2136	if (!(property->flags & DRM_MODE_PROP_ENUM))
		2137	return -EINVAL;
		2138
		2139	if (!list_empty(&property->enum_blob_list)) {
		2140	list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
		2141	if (prop_enum->value == value) {
		2142	strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
		2143	prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
		2144	return 0;
		2145	}
		2146	}
		2147	}
		2148
		2149	prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
		2150	if (!prop_enum)
		2151	return -ENOMEM;
		2152
		2153	strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
		2154	prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
		2155	prop_enum->value = value;
		2156
		2157	property->values[index] = value;
		2158	list_add_tail(&prop_enum->head, &property->enum_blob_list);
		2159	return 0;
		2160	}
		2161	EXPORT_SYMBOL(drm_property_add_enum);
		2162
		2163	void drm_property_destroy(struct drm_device dev, struct drm_property property)
		2164	{
		2165	struct drm_property_enum prop_enum, pt;
		2166
		2167	list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
		2168	list_del(&prop_enum->head);
		2169	kfree(prop_enum);
		2170	}
		2171
		2172	if (property->num_values)
		2173	kfree(property->values);
		2174	drm_mode_object_put(dev, &property->base);
		2175	list_del(&property->head);
		2176	kfree(property);
		2177	}
		2178	EXPORT_SYMBOL(drm_property_destroy);
		2179
		2180	int drm_connector_attach_property(struct drm_connector *connector,
		2181	struct drm_property *property, uint64_t init_val)
		2182	{
		2183	int i;
		2184
		2185	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		2186	if (connector->property_ids[i] == 0) {
		2187	connector->property_ids[i] = property->base.id;
		2188	connector->property_values[i] = init_val;
		2189	break;
		2190	}
		2191	}
		2192
		2193	if (i == DRM_CONNECTOR_MAX_PROPERTY)
		2194	return -EINVAL;
		2195	return 0;
		2196	}
		2197	EXPORT_SYMBOL(drm_connector_attach_property);
		2198
		2199	int drm_connector_property_set_value(struct drm_connector *connector,
		2200	struct drm_property *property, uint64_t value)
		2201	{
		2202	int i;
		2203
		2204	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		2205	if (connector->property_ids[i] == property->base.id) {
		2206	connector->property_values[i] = value;
		2207	break;
		2208	}
		2209	}
		2210
		2211	if (i == DRM_CONNECTOR_MAX_PROPERTY)
		2212	return -EINVAL;
		2213	return 0;
		2214	}
		2215	EXPORT_SYMBOL(drm_connector_property_set_value);
		2216
		2217	int drm_connector_property_get_value(struct drm_connector *connector,
		2218	struct drm_property property, uint64_t val)
		2219	{
		2220	int i;
		2221
		2222	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		2223	if (connector->property_ids[i] == property->base.id) {
		2224	*val = connector->property_values[i];
		2225	break;
		2226	}
		2227	}
		2228
		2229	if (i == DRM_CONNECTOR_MAX_PROPERTY)
		2230	return -EINVAL;
		2231	return 0;
		2232	}
		2233	EXPORT_SYMBOL(drm_connector_property_get_value);
		2234
		2235	#if 0
		2236	int drm_mode_getproperty_ioctl(struct drm_device *dev,
		2237	void data, struct drm_file file_priv)
		2238	{
		2239	struct drm_mode_object *obj;
		2240	struct drm_mode_get_property *out_resp = data;
		2241	struct drm_property *property;
		2242	int enum_count = 0;
		2243	int blob_count = 0;
		2244	int value_count = 0;
		2245	int ret = 0, i;
		2246	int copied;
		2247	struct drm_property_enum *prop_enum;
		2248	struct drm_mode_property_enum __user *enum_ptr;
		2249	struct drm_property_blob *prop_blob;
		2250	uint32_t *blob_id_ptr;
		2251	uint64_t __user *values_ptr;
		2252	uint32_t __user *blob_length_ptr;
		2253
1963	serge	2254	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		2255	return -EINVAL;
		2256
1179	serge	2257	mutex_lock(&dev->mode_config.mutex);
1123	serge	2258	obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
		2259	if (!obj) {
		2260	ret = -EINVAL;
		2261	goto done;
		2262	}
		2263	property = obj_to_property(obj);
		2264
		2265	if (property->flags & DRM_MODE_PROP_ENUM) {
		2266	list_for_each_entry(prop_enum, &property->enum_blob_list, head)
		2267	enum_count++;
		2268	} else if (property->flags & DRM_MODE_PROP_BLOB) {
		2269	list_for_each_entry(prop_blob, &property->enum_blob_list, head)
		2270	blob_count++;
		2271	}
		2272
		2273	value_count = property->num_values;
		2274
		2275	strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
		2276	out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
		2277	out_resp->flags = property->flags;
		2278
		2279	if ((out_resp->count_values >= value_count) && value_count) {
		2280	values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
		2281	for (i = 0; i < value_count; i++) {
		2282	if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
		2283	ret = -EFAULT;
		2284	goto done;
		2285	}
		2286	}
		2287	}
		2288	out_resp->count_values = value_count;
		2289
		2290	if (property->flags & DRM_MODE_PROP_ENUM) {
		2291	if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
		2292	copied = 0;
		2293	enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
		2294	list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
		2295
		2296	if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
		2297	ret = -EFAULT;
		2298	goto done;
		2299	}
		2300
		2301	if (copy_to_user(&enum_ptr[copied].name,
		2302	&prop_enum->name, DRM_PROP_NAME_LEN)) {
		2303	ret = -EFAULT;
		2304	goto done;
		2305	}
		2306	copied++;
		2307	}
		2308	}
		2309	out_resp->count_enum_blobs = enum_count;
		2310	}
		2311
		2312	if (property->flags & DRM_MODE_PROP_BLOB) {
		2313	if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
		2314	copied = 0;
		2315	blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
		2316	blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
		2317
		2318	list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
		2319	if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
		2320	ret = -EFAULT;
		2321	goto done;
		2322	}
		2323
		2324	if (put_user(prop_blob->length, blob_length_ptr + copied)) {
		2325	ret = -EFAULT;
		2326	goto done;
		2327	}
		2328
		2329	copied++;
		2330	}
		2331	}
		2332	out_resp->count_enum_blobs = blob_count;
		2333	}
		2334	done:
1179	serge	2335	mutex_unlock(&dev->mode_config.mutex);
1123	serge	2336	return ret;
		2337	}
		2338	#endif
		2339
		2340	static struct drm_property_blob drm_property_create_blob(struct drm_device dev, int length,
		2341	void *data)
		2342	{
		2343	struct drm_property_blob *blob;
		2344
		2345	if (!length \|\| !data)
		2346	return NULL;
		2347
		2348	blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
		2349	if (!blob)
		2350	return NULL;
		2351
		2352	blob->data = (void )((char )blob + sizeof(struct drm_property_blob));
		2353	blob->length = length;
		2354
		2355	memcpy(blob->data, data, length);
		2356
		2357	drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
		2358
		2359	list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
		2360	return blob;
		2361	}
		2362
		2363	static void drm_property_destroy_blob(struct drm_device *dev,
		2364	struct drm_property_blob *blob)
		2365	{
		2366	drm_mode_object_put(dev, &blob->base);
		2367	list_del(&blob->head);
		2368	kfree(blob);
		2369	}
		2370
		2371	#if 0
		2372	int drm_mode_getblob_ioctl(struct drm_device *dev,
		2373	void data, struct drm_file file_priv)
		2374	{
		2375	struct drm_mode_object *obj;
		2376	struct drm_mode_get_blob *out_resp = data;
		2377	struct drm_property_blob *blob;
		2378	int ret = 0;
		2379	void *blob_ptr;
		2380
1963	serge	2381	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		2382	return -EINVAL;
		2383
1123	serge	2384	mutex_lock(&dev->mode_config.mutex);
		2385	obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
		2386	if (!obj) {
		2387	ret = -EINVAL;
		2388	goto done;
		2389	}
		2390	blob = obj_to_blob(obj);
		2391
		2392	if (out_resp->length == blob->length) {
		2393	blob_ptr = (void *)(unsigned long)out_resp->data;
		2394	if (copy_to_user(blob_ptr, blob->data, blob->length)){
		2395	ret = -EFAULT;
		2396	goto done;
		2397	}
		2398	}
		2399	out_resp->length = blob->length;
		2400
		2401	done:
		2402	mutex_unlock(&dev->mode_config.mutex);
		2403	return ret;
		2404	}
		2405	#endif
		2406
		2407	int drm_mode_connector_update_edid_property(struct drm_connector *connector,
		2408	struct edid *edid)
		2409	{
		2410	struct drm_device *dev = connector->dev;
1963	serge	2411	int ret = 0, size;
1123	serge	2412
		2413	if (connector->edid_blob_ptr)
		2414	drm_property_destroy_blob(dev, connector->edid_blob_ptr);
		2415
		2416	/* Delete edid, when there is none. */
		2417	if (!edid) {
		2418	connector->edid_blob_ptr = NULL;
		2419	ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
		2420	return ret;
		2421	}
		2422
1963	serge	2423	size = EDID_LENGTH * (1 + edid->extensions);
		2424	connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
		2425	size, edid);
1123	serge	2426
		2427	ret = drm_connector_property_set_value(connector,
		2428	dev->mode_config.edid_property,
		2429	connector->edid_blob_ptr->base.id);
		2430
		2431	return ret;
		2432	}
		2433	EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
		2434
		2435	#if 0
		2436	int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
		2437	void data, struct drm_file file_priv)
		2438	{
		2439	struct drm_mode_connector_set_property *out_resp = data;
		2440	struct drm_mode_object *obj;
		2441	struct drm_property *property;
		2442	struct drm_connector *connector;
		2443	int ret = -EINVAL;
		2444	int i;
		2445
1963	serge	2446	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		2447	return -EINVAL;
		2448
1179	serge	2449	mutex_lock(&dev->mode_config.mutex);
1123	serge	2450
		2451	obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
		2452	if (!obj) {
		2453	goto out;
		2454	}
		2455	connector = obj_to_connector(obj);
		2456
		2457	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		2458	if (connector->property_ids[i] == out_resp->prop_id)
		2459	break;
		2460	}
		2461
		2462	if (i == DRM_CONNECTOR_MAX_PROPERTY) {
		2463	goto out;
		2464	}
		2465
		2466	obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
		2467	if (!obj) {
		2468	goto out;
		2469	}
		2470	property = obj_to_property(obj);
		2471
		2472	if (property->flags & DRM_MODE_PROP_IMMUTABLE)
		2473	goto out;
		2474
		2475	if (property->flags & DRM_MODE_PROP_RANGE) {
		2476	if (out_resp->value < property->values[0])
		2477	goto out;
		2478
		2479	if (out_resp->value > property->values[1])
		2480	goto out;
		2481	} else {
		2482	int found = 0;
		2483	for (i = 0; i < property->num_values; i++) {
		2484	if (property->values[i] == out_resp->value) {
		2485	found = 1;
		2486	break;
		2487	}
		2488	}
		2489	if (!found) {
		2490	goto out;
		2491	}
		2492	}
		2493
		2494	/* Do DPMS ourselves */
		2495	if (property == connector->dev->mode_config.dpms_property) {
		2496	if (connector->funcs->dpms)
		2497	(*connector->funcs->dpms)(connector, (int) out_resp->value);
		2498	ret = 0;
		2499	} else if (connector->funcs->set_property)
		2500	ret = connector->funcs->set_property(connector, property, out_resp->value);
		2501
1321	serge	2502	/* store the property value if successful */
1123	serge	2503	if (!ret)
		2504	drm_connector_property_set_value(connector, property, out_resp->value);
		2505	out:
1179	serge	2506	mutex_unlock(&dev->mode_config.mutex);
1123	serge	2507	return ret;
		2508	}
		2509	#endif
		2510
		2511	int drm_mode_connector_attach_encoder(struct drm_connector *connector,
		2512	struct drm_encoder *encoder)
		2513	{
		2514	int i;
		2515
		2516	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		2517	if (connector->encoder_ids[i] == 0) {
		2518	connector->encoder_ids[i] = encoder->base.id;
		2519	return 0;
		2520	}
		2521	}
		2522	return -ENOMEM;
		2523	}
		2524	EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
		2525
		2526	void drm_mode_connector_detach_encoder(struct drm_connector *connector,
		2527	struct drm_encoder *encoder)
		2528	{
		2529	int i;
		2530	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		2531	if (connector->encoder_ids[i] == encoder->base.id) {
		2532	connector->encoder_ids[i] = 0;
		2533	if (connector->encoder == encoder)
		2534	connector->encoder = NULL;
		2535	break;
		2536	}
		2537	}
		2538	}
		2539	EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
		2540
		2541	bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
		2542	int gamma_size)
		2543	{
		2544	crtc->gamma_size = gamma_size;
		2545
		2546	crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
		2547	if (!crtc->gamma_store) {
		2548	crtc->gamma_size = 0;
		2549	return false;
		2550	}
		2551
		2552	return true;
		2553	}
		2554	EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
		2555
		2556	#if 0
		2557	int drm_mode_gamma_set_ioctl(struct drm_device *dev,
		2558	void data, struct drm_file file_priv)
		2559	{
		2560	struct drm_mode_crtc_lut *crtc_lut = data;
		2561	struct drm_mode_object *obj;
		2562	struct drm_crtc *crtc;
		2563	void r_base, g_base, *b_base;
		2564	int size;
		2565	int ret = 0;
		2566
1963	serge	2567	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		2568	return -EINVAL;
		2569
1179	serge	2570	mutex_lock(&dev->mode_config.mutex);
1123	serge	2571	obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
		2572	if (!obj) {
		2573	ret = -EINVAL;
		2574	goto out;
		2575	}
		2576	crtc = obj_to_crtc(obj);
		2577
		2578	/* memcpy into gamma store */
		2579	if (crtc_lut->gamma_size != crtc->gamma_size) {
		2580	ret = -EINVAL;
		2581	goto out;
		2582	}
		2583
		2584	size = crtc_lut->gamma_size * (sizeof(uint16_t));
		2585	r_base = crtc->gamma_store;
		2586	if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
		2587	ret = -EFAULT;
		2588	goto out;
		2589	}
		2590
		2591	g_base = r_base + size;
		2592	if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
		2593	ret = -EFAULT;
		2594	goto out;
		2595	}
		2596
		2597	b_base = g_base + size;
		2598	if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
		2599	ret = -EFAULT;
		2600	goto out;
		2601	}
		2602
1963	serge	2603	crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
1123	serge	2604
		2605	out:
1179	serge	2606	mutex_unlock(&dev->mode_config.mutex);
1123	serge	2607	return ret;
		2608
		2609	}
		2610
		2611	int drm_mode_gamma_get_ioctl(struct drm_device *dev,
		2612	void data, struct drm_file file_priv)
		2613	{
		2614	struct drm_mode_crtc_lut *crtc_lut = data;
		2615	struct drm_mode_object *obj;
		2616	struct drm_crtc *crtc;
		2617	void r_base, g_base, *b_base;
		2618	int size;
		2619	int ret = 0;
		2620
1963	serge	2621	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		2622	return -EINVAL;
		2623
1179	serge	2624	mutex_lock(&dev->mode_config.mutex);
1123	serge	2625	obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
		2626	if (!obj) {
		2627	ret = -EINVAL;
		2628	goto out;
		2629	}
		2630	crtc = obj_to_crtc(obj);
		2631
		2632	/* memcpy into gamma store */
		2633	if (crtc_lut->gamma_size != crtc->gamma_size) {
		2634	ret = -EINVAL;
		2635	goto out;
		2636	}
		2637
		2638	size = crtc_lut->gamma_size * (sizeof(uint16_t));
		2639	r_base = crtc->gamma_store;
		2640	if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
		2641	ret = -EFAULT;
		2642	goto out;
		2643	}
		2644
		2645	g_base = r_base + size;
		2646	if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
		2647	ret = -EFAULT;
		2648	goto out;
		2649	}
		2650
		2651	b_base = g_base + size;
		2652	if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
		2653	ret = -EFAULT;
		2654	goto out;
		2655	}
		2656	out:
1179	serge	2657	mutex_unlock(&dev->mode_config.mutex);
1123	serge	2658	return ret;
		2659	}
		2660
		2661	#endif
1179	serge	2662
		2663
1963	serge	2664	void drm_mode_config_reset(struct drm_device *dev)
		2665	{
		2666	struct drm_crtc *crtc;
		2667	struct drm_encoder *encoder;
		2668	struct drm_connector *connector;
		2669
		2670	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
		2671	if (crtc->funcs->reset)
		2672	crtc->funcs->reset(crtc);
		2673
		2674	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
		2675	if (encoder->funcs->reset)
		2676	encoder->funcs->reset(encoder);
		2677
		2678	list_for_each_entry(connector, &dev->mode_config.connector_list, head)
		2679	if (connector->funcs->reset)
		2680	connector->funcs->reset(connector);
		2681	}
		2682	EXPORT_SYMBOL(drm_mode_config_reset);

Subversion Repositories Kolibri OS

(root)/drivers/video/drm/drm_crtc.c – Rev 2004