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);
2160	serge	502	dev->mode_config.num_connector--;
1179	serge	503	mutex_unlock(&dev->mode_config.mutex);
1123	serge	504	}
		505	EXPORT_SYMBOL(drm_connector_cleanup);
		506
		507	void drm_encoder_init(struct drm_device *dev,
		508	struct drm_encoder *encoder,
		509	const struct drm_encoder_funcs *funcs,
		510	int encoder_type)
		511	{
1179	serge	512	mutex_lock(&dev->mode_config.mutex);
1123	serge	513
		514	encoder->dev = dev;
		515
		516	drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
		517	encoder->encoder_type = encoder_type;
		518	encoder->funcs = funcs;
		519
		520	list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
		521	dev->mode_config.num_encoder++;
		522
1179	serge	523	mutex_unlock(&dev->mode_config.mutex);
1123	serge	524	}
		525	EXPORT_SYMBOL(drm_encoder_init);
		526
		527	void drm_encoder_cleanup(struct drm_encoder *encoder)
		528	{
		529	struct drm_device *dev = encoder->dev;
1179	serge	530	mutex_lock(&dev->mode_config.mutex);
1123	serge	531	drm_mode_object_put(dev, &encoder->base);
		532	list_del(&encoder->head);
2160	serge	533	dev->mode_config.num_encoder--;
1179	serge	534	mutex_unlock(&dev->mode_config.mutex);
1123	serge	535	}
		536	EXPORT_SYMBOL(drm_encoder_cleanup);
		537
		538	/**
		539	* drm_mode_create - create a new display mode
		540	* @dev: DRM device
		541	*
		542	* LOCKING:
		543	* Caller must hold DRM mode_config lock.
		544	*
		545	* Create a new drm_display_mode, give it an ID, and return it.
		546	*
		547	* RETURNS:
		548	* Pointer to new mode on success, NULL on error.
		549	*/
		550	struct drm_display_mode drm_mode_create(struct drm_device dev)
		551	{
		552	struct drm_display_mode *nmode;
		553
		554	nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
		555	if (!nmode)
		556	return NULL;
		557
		558	drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
		559	return nmode;
		560	}
		561	EXPORT_SYMBOL(drm_mode_create);
		562
		563	/**
		564	* drm_mode_destroy - remove a mode
		565	* @dev: DRM device
		566	* @mode: mode to remove
		567	*
		568	* LOCKING:
		569	* Caller must hold mode config lock.
		570	*
		571	* Free @mode's unique identifier, then free it.
		572	*/
		573	void drm_mode_destroy(struct drm_device dev, struct drm_display_mode mode)
		574	{
		575	drm_mode_object_put(dev, &mode->base);
		576
		577	kfree(mode);
		578	}
		579	EXPORT_SYMBOL(drm_mode_destroy);
		580
		581	static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
		582	{
		583	struct drm_property *edid;
		584	struct drm_property *dpms;
		585	int i;
		586
		587	/*
		588	* Standard properties (apply to all connectors)
		589	*/
		590	edid = drm_property_create(dev, DRM_MODE_PROP_BLOB \|
		591	DRM_MODE_PROP_IMMUTABLE,
		592	"EDID", 0);
		593	dev->mode_config.edid_property = edid;
		594
		595	dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
		596	"DPMS", ARRAY_SIZE(drm_dpms_enum_list));
		597	for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
		598	drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
		599	drm_dpms_enum_list[i].name);
		600	dev->mode_config.dpms_property = dpms;
		601
		602	return 0;
		603	}
		604
		605	/**
		606	* drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
		607	* @dev: DRM device
		608	*
		609	* Called by a driver the first time a DVI-I connector is made.
		610	*/
		611	int drm_mode_create_dvi_i_properties(struct drm_device *dev)
		612	{
		613	struct drm_property *dvi_i_selector;
		614	struct drm_property *dvi_i_subconnector;
		615	int i;
		616
		617	if (dev->mode_config.dvi_i_select_subconnector_property)
		618	return 0;
		619
		620	dvi_i_selector =
		621	drm_property_create(dev, DRM_MODE_PROP_ENUM,
		622	"select subconnector",
		623	ARRAY_SIZE(drm_dvi_i_select_enum_list));
		624	for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
		625	drm_property_add_enum(dvi_i_selector, i,
		626	drm_dvi_i_select_enum_list[i].type,
		627	drm_dvi_i_select_enum_list[i].name);
		628	dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
		629
		630	dvi_i_subconnector =
		631	drm_property_create(dev, DRM_MODE_PROP_ENUM \|
		632	DRM_MODE_PROP_IMMUTABLE,
		633	"subconnector",
		634	ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
		635	for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
		636	drm_property_add_enum(dvi_i_subconnector, i,
		637	drm_dvi_i_subconnector_enum_list[i].type,
		638	drm_dvi_i_subconnector_enum_list[i].name);
		639	dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
		640
		641	return 0;
		642	}
		643	EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
		644
		645	/**
		646	* drm_create_tv_properties - create TV specific connector properties
		647	* @dev: DRM device
		648	* @num_modes: number of different TV formats (modes) supported
		649	* @modes: array of pointers to strings containing name of each format
		650	*
		651	* Called by a driver's TV initialization routine, this function creates
		652	* the TV specific connector properties for a given device. Caller is
		653	* responsible for allocating a list of format names and passing them to
		654	* this routine.
		655	*/
		656	int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
		657	char *modes[])
		658	{
		659	struct drm_property *tv_selector;
		660	struct drm_property *tv_subconnector;
		661	int i;
		662
		663	if (dev->mode_config.tv_select_subconnector_property)
		664	return 0;
		665
		666	/*
		667	* Basic connector properties
		668	*/
		669	tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
		670	"select subconnector",
		671	ARRAY_SIZE(drm_tv_select_enum_list));
		672	for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
		673	drm_property_add_enum(tv_selector, i,
		674	drm_tv_select_enum_list[i].type,
		675	drm_tv_select_enum_list[i].name);
		676	dev->mode_config.tv_select_subconnector_property = tv_selector;
		677
		678	tv_subconnector =
		679	drm_property_create(dev, DRM_MODE_PROP_ENUM \|
		680	DRM_MODE_PROP_IMMUTABLE, "subconnector",
		681	ARRAY_SIZE(drm_tv_subconnector_enum_list));
		682	for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
		683	drm_property_add_enum(tv_subconnector, i,
		684	drm_tv_subconnector_enum_list[i].type,
		685	drm_tv_subconnector_enum_list[i].name);
		686	dev->mode_config.tv_subconnector_property = tv_subconnector;
		687
		688	/*
		689	* Other, TV specific properties: margins & TV modes.
		690	*/
		691	dev->mode_config.tv_left_margin_property =
		692	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		693	"left margin", 2);
		694	dev->mode_config.tv_left_margin_property->values[0] = 0;
		695	dev->mode_config.tv_left_margin_property->values[1] = 100;
		696
		697	dev->mode_config.tv_right_margin_property =
		698	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		699	"right margin", 2);
		700	dev->mode_config.tv_right_margin_property->values[0] = 0;
		701	dev->mode_config.tv_right_margin_property->values[1] = 100;
		702
		703	dev->mode_config.tv_top_margin_property =
		704	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		705	"top margin", 2);
		706	dev->mode_config.tv_top_margin_property->values[0] = 0;
		707	dev->mode_config.tv_top_margin_property->values[1] = 100;
		708
		709	dev->mode_config.tv_bottom_margin_property =
		710	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		711	"bottom margin", 2);
		712	dev->mode_config.tv_bottom_margin_property->values[0] = 0;
		713	dev->mode_config.tv_bottom_margin_property->values[1] = 100;
		714
		715	dev->mode_config.tv_mode_property =
		716	drm_property_create(dev, DRM_MODE_PROP_ENUM,
		717	"mode", num_modes);
		718	for (i = 0; i < num_modes; i++)
		719	drm_property_add_enum(dev->mode_config.tv_mode_property, i,
		720	i, modes[i]);
		721
1179	serge	722	dev->mode_config.tv_brightness_property =
		723	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		724	"brightness", 2);
		725	dev->mode_config.tv_brightness_property->values[0] = 0;
		726	dev->mode_config.tv_brightness_property->values[1] = 100;
		727
		728	dev->mode_config.tv_contrast_property =
		729	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		730	"contrast", 2);
		731	dev->mode_config.tv_contrast_property->values[0] = 0;
		732	dev->mode_config.tv_contrast_property->values[1] = 100;
		733
		734	dev->mode_config.tv_flicker_reduction_property =
		735	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		736	"flicker reduction", 2);
		737	dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
		738	dev->mode_config.tv_flicker_reduction_property->values[1] = 100;
		739
		740	dev->mode_config.tv_overscan_property =
		741	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		742	"overscan", 2);
		743	dev->mode_config.tv_overscan_property->values[0] = 0;
		744	dev->mode_config.tv_overscan_property->values[1] = 100;
		745
		746	dev->mode_config.tv_saturation_property =
		747	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		748	"saturation", 2);
		749	dev->mode_config.tv_saturation_property->values[0] = 0;
		750	dev->mode_config.tv_saturation_property->values[1] = 100;
		751
		752	dev->mode_config.tv_hue_property =
		753	drm_property_create(dev, DRM_MODE_PROP_RANGE,
		754	"hue", 2);
		755	dev->mode_config.tv_hue_property->values[0] = 0;
		756	dev->mode_config.tv_hue_property->values[1] = 100;
		757
1123	serge	758	return 0;
		759	}
		760	EXPORT_SYMBOL(drm_mode_create_tv_properties);
		761
		762	/**
		763	* drm_mode_create_scaling_mode_property - create scaling mode property
		764	* @dev: DRM device
		765	*
		766	* Called by a driver the first time it's needed, must be attached to desired
		767	* connectors.
		768	*/
		769	int drm_mode_create_scaling_mode_property(struct drm_device *dev)
		770	{
		771	struct drm_property *scaling_mode;
		772	int i;
		773
		774	if (dev->mode_config.scaling_mode_property)
		775	return 0;
		776
		777	scaling_mode =
		778	drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
		779	ARRAY_SIZE(drm_scaling_mode_enum_list));
		780	for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
		781	drm_property_add_enum(scaling_mode, i,
		782	drm_scaling_mode_enum_list[i].type,
		783	drm_scaling_mode_enum_list[i].name);
		784
		785	dev->mode_config.scaling_mode_property = scaling_mode;
		786
		787	return 0;
		788	}
		789	EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
		790
		791	/**
		792	* drm_mode_create_dithering_property - create dithering property
		793	* @dev: DRM device
		794	*
		795	* Called by a driver the first time it's needed, must be attached to desired
		796	* connectors.
		797	*/
		798	int drm_mode_create_dithering_property(struct drm_device *dev)
		799	{
		800	struct drm_property *dithering_mode;
		801	int i;
		802
		803	if (dev->mode_config.dithering_mode_property)
		804	return 0;
		805
		806	dithering_mode =
		807	drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
		808	ARRAY_SIZE(drm_dithering_mode_enum_list));
		809	for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
		810	drm_property_add_enum(dithering_mode, i,
		811	drm_dithering_mode_enum_list[i].type,
		812	drm_dithering_mode_enum_list[i].name);
		813	dev->mode_config.dithering_mode_property = dithering_mode;
		814
		815	return 0;
		816	}
		817	EXPORT_SYMBOL(drm_mode_create_dithering_property);
		818
		819	/**
1321	serge	820	* drm_mode_create_dirty_property - create dirty property
		821	* @dev: DRM device
		822	*
		823	* Called by a driver the first time it's needed, must be attached to desired
		824	* connectors.
		825	*/
		826	int drm_mode_create_dirty_info_property(struct drm_device *dev)
		827	{
		828	struct drm_property *dirty_info;
		829	int i;
		830
		831	if (dev->mode_config.dirty_info_property)
		832	return 0;
		833
		834	dirty_info =
		835	drm_property_create(dev, DRM_MODE_PROP_ENUM \|
		836	DRM_MODE_PROP_IMMUTABLE,
		837	"dirty",
		838	ARRAY_SIZE(drm_dirty_info_enum_list));
		839	for (i = 0; i < ARRAY_SIZE(drm_dirty_info_enum_list); i++)
		840	drm_property_add_enum(dirty_info, i,
		841	drm_dirty_info_enum_list[i].type,
		842	drm_dirty_info_enum_list[i].name);
		843	dev->mode_config.dirty_info_property = dirty_info;
		844
		845	return 0;
		846	}
		847	EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
		848
		849	/**
1123	serge	850	* drm_mode_config_init - initialize DRM mode_configuration structure
		851	* @dev: DRM device
		852	*
		853	* LOCKING:
		854	* None, should happen single threaded at init time.
		855	*
		856	* Initialize @dev's mode_config structure, used for tracking the graphics
		857	* configuration of @dev.
		858	*/
		859	void drm_mode_config_init(struct drm_device *dev)
		860	{
1630	serge	861	mutex_init(&dev->mode_config.mutex);
		862	mutex_init(&dev->mode_config.idr_mutex);
1123	serge	863	INIT_LIST_HEAD(&dev->mode_config.fb_list);
		864	INIT_LIST_HEAD(&dev->mode_config.crtc_list);
		865	INIT_LIST_HEAD(&dev->mode_config.connector_list);
		866	INIT_LIST_HEAD(&dev->mode_config.encoder_list);
		867	INIT_LIST_HEAD(&dev->mode_config.property_list);
		868	INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
		869	idr_init(&dev->mode_config.crtc_idr);
		870
1179	serge	871	mutex_lock(&dev->mode_config.mutex);
1123	serge	872	drm_mode_create_standard_connector_properties(dev);
1179	serge	873	mutex_unlock(&dev->mode_config.mutex);
1123	serge	874
		875	/* Just to be sure */
		876	dev->mode_config.num_fb = 0;
		877	dev->mode_config.num_connector = 0;
		878	dev->mode_config.num_crtc = 0;
		879	dev->mode_config.num_encoder = 0;
		880	}
		881	EXPORT_SYMBOL(drm_mode_config_init);
		882
		883	int drm_mode_group_init(struct drm_device dev, struct drm_mode_group group)
		884	{
		885	uint32_t total_objects = 0;
		886
		887	total_objects += dev->mode_config.num_crtc;
		888	total_objects += dev->mode_config.num_connector;
		889	total_objects += dev->mode_config.num_encoder;
		890
		891	group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
		892	if (!group->id_list)
		893	return -ENOMEM;
		894
		895	group->num_crtcs = 0;
		896	group->num_connectors = 0;
		897	group->num_encoders = 0;
		898	return 0;
		899	}
		900
		901	int drm_mode_group_init_legacy_group(struct drm_device *dev,
		902	struct drm_mode_group *group)
		903	{
		904	struct drm_crtc *crtc;
		905	struct drm_encoder *encoder;
		906	struct drm_connector *connector;
		907	int ret;
		908
		909	if ((ret = drm_mode_group_init(dev, group)))
		910	return ret;
		911
		912	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
		913	group->id_list[group->num_crtcs++] = crtc->base.id;
		914
		915	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
		916	group->id_list[group->num_crtcs + group->num_encoders++] =
		917	encoder->base.id;
		918
		919	list_for_each_entry(connector, &dev->mode_config.connector_list, head)
		920	group->id_list[group->num_crtcs + group->num_encoders +
		921	group->num_connectors++] = connector->base.id;
		922
		923	return 0;
		924	}
		925
		926	/**
		927	* drm_mode_config_cleanup - free up DRM mode_config info
		928	* @dev: DRM device
		929	*
		930	* LOCKING:
		931	* Caller must hold mode config lock.
		932	*
		933	* Free up all the connectors and CRTCs associated with this DRM device, then
		934	* free up the framebuffers and associated buffer objects.
		935	*
		936	* FIXME: cleanup any dangling user buffer objects too
		937	*/
		938	void drm_mode_config_cleanup(struct drm_device *dev)
		939	{
		940	struct drm_connector connector, ot;
		941	struct drm_crtc crtc, ct;
		942	struct drm_encoder encoder, enct;
		943	struct drm_framebuffer fb, fbt;
		944	struct drm_property property, pt;
		945
		946	list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
		947	head) {
		948	encoder->funcs->destroy(encoder);
		949	}
		950
		951	list_for_each_entry_safe(connector, ot,
		952	&dev->mode_config.connector_list, head) {
		953	connector->funcs->destroy(connector);
		954	}
		955
		956	list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
		957	head) {
		958	drm_property_destroy(dev, property);
		959	}
		960
		961	list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
		962	fb->funcs->destroy(fb);
		963	}
		964
		965	list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
		966	crtc->funcs->destroy(crtc);
		967	}
		968
		969	}
		970	EXPORT_SYMBOL(drm_mode_config_cleanup);
		971
		972	/**
		973	* drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
		974	* @out: drm_mode_modeinfo struct to return to the user
		975	* @in: drm_display_mode to use
		976	*
		977	* LOCKING:
		978	* None.
		979	*
		980	* Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
		981	* the user.
		982	*/
		983	void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
		984	struct drm_display_mode *in)
		985	{
		986	out->clock = in->clock;
		987	out->hdisplay = in->hdisplay;
		988	out->hsync_start = in->hsync_start;
		989	out->hsync_end = in->hsync_end;
		990	out->htotal = in->htotal;
		991	out->hskew = in->hskew;
		992	out->vdisplay = in->vdisplay;
		993	out->vsync_start = in->vsync_start;
		994	out->vsync_end = in->vsync_end;
		995	out->vtotal = in->vtotal;
		996	out->vscan = in->vscan;
		997	out->vrefresh = in->vrefresh;
		998	out->flags = in->flags;
		999	out->type = in->type;
		1000	strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
		1001	out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
		1002	}
		1003
		1004	/**
		1005	* drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
		1006	* @out: drm_display_mode to return to the user
		1007	* @in: drm_mode_modeinfo to use
		1008	*
		1009	* LOCKING:
		1010	* None.
		1011	*
		1012	* Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
		1013	* the caller.
		1014	*/
		1015	void drm_crtc_convert_umode(struct drm_display_mode *out,
		1016	struct drm_mode_modeinfo *in)
		1017	{
		1018	out->clock = in->clock;
		1019	out->hdisplay = in->hdisplay;
		1020	out->hsync_start = in->hsync_start;
		1021	out->hsync_end = in->hsync_end;
		1022	out->htotal = in->htotal;
		1023	out->hskew = in->hskew;
		1024	out->vdisplay = in->vdisplay;
		1025	out->vsync_start = in->vsync_start;
		1026	out->vsync_end = in->vsync_end;
		1027	out->vtotal = in->vtotal;
		1028	out->vscan = in->vscan;
		1029	out->vrefresh = in->vrefresh;
		1030	out->flags = in->flags;
		1031	out->type = in->type;
		1032	strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
		1033	out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
		1034	}
		1035
		1036
		1037	#if 0
		1038	/**
		1039	* drm_mode_getresources - get graphics configuration
		1040	* @inode: inode from the ioctl
		1041	* @filp: file * from the ioctl
		1042	* @cmd: cmd from ioctl
		1043	* @arg: arg from ioctl
		1044	*
		1045	* LOCKING:
		1046	* Takes mode config lock.
		1047	*
		1048	* Construct a set of configuration description structures and return
		1049	* them to the user, including CRTC, connector and framebuffer configuration.
		1050	*
		1051	* Called by the user via ioctl.
		1052	*
		1053	* RETURNS:
		1054	* Zero on success, errno on failure.
		1055	*/
		1056	int drm_mode_getresources(struct drm_device dev, void data,
		1057	struct drm_file *file_priv)
		1058	{
		1059	struct drm_mode_card_res *card_res = data;
		1060	struct list_head *lh;
		1061	struct drm_framebuffer *fb;
		1062	struct drm_connector *connector;
		1063	struct drm_crtc *crtc;
		1064	struct drm_encoder *encoder;
		1065	int ret = 0;
		1066	int connector_count = 0;
		1067	int crtc_count = 0;
		1068	int fb_count = 0;
		1069	int encoder_count = 0;
		1070	int copied = 0, i;
		1071	uint32_t __user *fb_id;
		1072	uint32_t __user *crtc_id;
		1073	uint32_t __user *connector_id;
		1074	uint32_t __user *encoder_id;
		1075	struct drm_mode_group *mode_group;
		1076
1963	serge	1077	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1078	return -EINVAL;
		1079
1123	serge	1080	mutex_lock(&dev->mode_config.mutex);
		1081
		1082	/*
		1083	* For the non-control nodes we need to limit the list of resources
		1084	* by IDs in the group list for this node
		1085	*/
		1086	list_for_each(lh, &file_priv->fbs)
		1087	fb_count++;
		1088
		1089	mode_group = &file_priv->master->minor->mode_group;
		1090	if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
		1091
		1092	list_for_each(lh, &dev->mode_config.crtc_list)
		1093	crtc_count++;
		1094
		1095	list_for_each(lh, &dev->mode_config.connector_list)
		1096	connector_count++;
		1097
		1098	list_for_each(lh, &dev->mode_config.encoder_list)
		1099	encoder_count++;
		1100	} else {
		1101
		1102	crtc_count = mode_group->num_crtcs;
		1103	connector_count = mode_group->num_connectors;
		1104	encoder_count = mode_group->num_encoders;
		1105	}
		1106
		1107	card_res->max_height = dev->mode_config.max_height;
		1108	card_res->min_height = dev->mode_config.min_height;
		1109	card_res->max_width = dev->mode_config.max_width;
		1110	card_res->min_width = dev->mode_config.min_width;
		1111
		1112	/* handle this in 4 parts */
		1113	/* FBs */
		1114	if (card_res->count_fbs >= fb_count) {
		1115	copied = 0;
		1116	fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1963	serge	1117	list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1123	serge	1118	if (put_user(fb->base.id, fb_id + copied)) {
		1119	ret = -EFAULT;
		1120	goto out;
		1121	}
		1122	copied++;
		1123	}
		1124	}
		1125	card_res->count_fbs = fb_count;
		1126
		1127	/* CRTCs */
		1128	if (card_res->count_crtcs >= crtc_count) {
		1129	copied = 0;
		1130	crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
		1131	if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
		1132	list_for_each_entry(crtc, &dev->mode_config.crtc_list,
		1133	head) {
1963	serge	1134	DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1123	serge	1135	if (put_user(crtc->base.id, crtc_id + copied)) {
		1136	ret = -EFAULT;
		1137	goto out;
		1138	}
		1139	copied++;
		1140	}
		1141	} else {
		1142	for (i = 0; i < mode_group->num_crtcs; i++) {
		1143	if (put_user(mode_group->id_list[i],
		1144	crtc_id + copied)) {
		1145	ret = -EFAULT;
		1146	goto out;
		1147	}
		1148	copied++;
		1149	}
		1150	}
		1151	}
		1152	card_res->count_crtcs = crtc_count;
		1153
		1154	/* Encoders */
		1155	if (card_res->count_encoders >= encoder_count) {
		1156	copied = 0;
		1157	encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
		1158	if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
		1159	list_for_each_entry(encoder,
		1160	&dev->mode_config.encoder_list,
		1161	head) {
1963	serge	1162	DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
		1163	drm_get_encoder_name(encoder));
1123	serge	1164	if (put_user(encoder->base.id, encoder_id +
		1165	copied)) {
		1166	ret = -EFAULT;
		1167	goto out;
		1168	}
		1169	copied++;
		1170	}
		1171	} else {
		1172	for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
		1173	if (put_user(mode_group->id_list[i],
		1174	encoder_id + copied)) {
		1175	ret = -EFAULT;
		1176	goto out;
		1177	}
		1178	copied++;
		1179	}
		1180
		1181	}
		1182	}
		1183	card_res->count_encoders = encoder_count;
		1184
		1185	/* Connectors */
		1186	if (card_res->count_connectors >= connector_count) {
		1187	copied = 0;
		1188	connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
		1189	if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
		1190	list_for_each_entry(connector,
		1191	&dev->mode_config.connector_list,
		1192	head) {
1963	serge	1193	DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
		1194	connector->base.id,
		1195	drm_get_connector_name(connector));
1123	serge	1196	if (put_user(connector->base.id,
		1197	connector_id + copied)) {
		1198	ret = -EFAULT;
		1199	goto out;
		1200	}
		1201	copied++;
		1202	}
		1203	} else {
		1204	int start = mode_group->num_crtcs +
		1205	mode_group->num_encoders;
		1206	for (i = start; i < start + mode_group->num_connectors; i++) {
		1207	if (put_user(mode_group->id_list[i],
		1208	connector_id + copied)) {
		1209	ret = -EFAULT;
		1210	goto out;
		1211	}
		1212	copied++;
		1213	}
		1214	}
		1215	}
		1216	card_res->count_connectors = connector_count;
		1217
1963	serge	1218	DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
1123	serge	1219	card_res->count_connectors, card_res->count_encoders);
		1220
		1221	out:
		1222	mutex_unlock(&dev->mode_config.mutex);
		1223	return ret;
		1224	}
		1225
		1226	/**
		1227	* drm_mode_getcrtc - get CRTC configuration
		1228	* @inode: inode from the ioctl
		1229	* @filp: file * from the ioctl
		1230	* @cmd: cmd from ioctl
		1231	* @arg: arg from ioctl
		1232	*
		1233	* LOCKING:
		1234	* Caller? (FIXME)
		1235	*
		1236	* Construct a CRTC configuration structure to return to the user.
		1237	*
		1238	* Called by the user via ioctl.
		1239	*
		1240	* RETURNS:
		1241	* Zero on success, errno on failure.
		1242	*/
		1243	int drm_mode_getcrtc(struct drm_device *dev,
		1244	void data, struct drm_file file_priv)
		1245	{
		1246	struct drm_mode_crtc *crtc_resp = data;
		1247	struct drm_crtc *crtc;
		1248	struct drm_mode_object *obj;
		1249	int ret = 0;
		1250
1963	serge	1251	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1252	return -EINVAL;
		1253
1123	serge	1254	mutex_lock(&dev->mode_config.mutex);
		1255
		1256	obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
		1257	DRM_MODE_OBJECT_CRTC);
		1258	if (!obj) {
		1259	ret = -EINVAL;
		1260	goto out;
		1261	}
		1262	crtc = obj_to_crtc(obj);
		1263
		1264	crtc_resp->x = crtc->x;
		1265	crtc_resp->y = crtc->y;
		1266	crtc_resp->gamma_size = crtc->gamma_size;
		1267	if (crtc->fb)
		1268	crtc_resp->fb_id = crtc->fb->base.id;
		1269	else
		1270	crtc_resp->fb_id = 0;
		1271
		1272	if (crtc->enabled) {
		1273
		1274	drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
		1275	crtc_resp->mode_valid = 1;
		1276
		1277	} else {
		1278	crtc_resp->mode_valid = 0;
		1279	}
		1280
		1281	out:
		1282	mutex_unlock(&dev->mode_config.mutex);
		1283	return ret;
		1284	}
		1285
		1286	/**
		1287	* drm_mode_getconnector - get connector configuration
		1288	* @inode: inode from the ioctl
		1289	* @filp: file * from the ioctl
		1290	* @cmd: cmd from ioctl
		1291	* @arg: arg from ioctl
		1292	*
		1293	* LOCKING:
		1294	* Caller? (FIXME)
		1295	*
		1296	* Construct a connector configuration structure to return to the user.
		1297	*
		1298	* Called by the user via ioctl.
		1299	*
		1300	* RETURNS:
		1301	* Zero on success, errno on failure.
		1302	*/
		1303	int drm_mode_getconnector(struct drm_device dev, void data,
		1304	struct drm_file *file_priv)
		1305	{
		1306	struct drm_mode_get_connector *out_resp = data;
		1307	struct drm_mode_object *obj;
		1308	struct drm_connector *connector;
		1309	struct drm_display_mode *mode;
		1310	int mode_count = 0;
		1311	int props_count = 0;
		1312	int encoders_count = 0;
		1313	int ret = 0;
		1314	int copied = 0;
		1315	int i;
		1316	struct drm_mode_modeinfo u_mode;
		1317	struct drm_mode_modeinfo __user *mode_ptr;
		1318	uint32_t __user *prop_ptr;
		1319	uint64_t __user *prop_values;
		1320	uint32_t __user *encoder_ptr;
		1321
1963	serge	1322	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1323	return -EINVAL;
		1324
1123	serge	1325	memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
		1326
1963	serge	1327	DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
1123	serge	1328
		1329	mutex_lock(&dev->mode_config.mutex);
		1330
		1331	obj = drm_mode_object_find(dev, out_resp->connector_id,
		1332	DRM_MODE_OBJECT_CONNECTOR);
		1333	if (!obj) {
		1334	ret = -EINVAL;
		1335	goto out;
		1336	}
		1337	connector = obj_to_connector(obj);
		1338
		1339	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		1340	if (connector->property_ids[i] != 0) {
		1341	props_count++;
		1342	}
		1343	}
		1344
		1345	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		1346	if (connector->encoder_ids[i] != 0) {
		1347	encoders_count++;
		1348	}
		1349	}
		1350
		1351	if (out_resp->count_modes == 0) {
		1352	connector->funcs->fill_modes(connector,
		1353	dev->mode_config.max_width,
		1354	dev->mode_config.max_height);
		1355	}
		1356
		1357	/* delayed so we get modes regardless of pre-fill_modes state */
		1358	list_for_each_entry(mode, &connector->modes, head)
		1359	mode_count++;
		1360
		1361	out_resp->connector_id = connector->base.id;
		1362	out_resp->connector_type = connector->connector_type;
		1363	out_resp->connector_type_id = connector->connector_type_id;
		1364	out_resp->mm_width = connector->display_info.width_mm;
		1365	out_resp->mm_height = connector->display_info.height_mm;
		1366	out_resp->subpixel = connector->display_info.subpixel_order;
		1367	out_resp->connection = connector->status;
		1368	if (connector->encoder)
		1369	out_resp->encoder_id = connector->encoder->base.id;
		1370	else
		1371	out_resp->encoder_id = 0;
		1372
		1373	/*
		1374	* This ioctl is called twice, once to determine how much space is
		1375	* needed, and the 2nd time to fill it.
		1376	*/
		1377	if ((out_resp->count_modes >= mode_count) && mode_count) {
		1378	copied = 0;
		1379	mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
		1380	list_for_each_entry(mode, &connector->modes, head) {
		1381	drm_crtc_convert_to_umode(&u_mode, mode);
		1382	if (copy_to_user(mode_ptr + copied,
		1383	&u_mode, sizeof(u_mode))) {
		1384	ret = -EFAULT;
		1385	goto out;
		1386	}
		1387	copied++;
		1388	}
		1389	}
		1390	out_resp->count_modes = mode_count;
		1391
		1392	if ((out_resp->count_props >= props_count) && props_count) {
		1393	copied = 0;
		1394	prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
		1395	prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
		1396	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		1397	if (connector->property_ids[i] != 0) {
		1398	if (put_user(connector->property_ids[i],
		1399	prop_ptr + copied)) {
		1400	ret = -EFAULT;
		1401	goto out;
		1402	}
		1403
		1404	if (put_user(connector->property_values[i],
		1405	prop_values + copied)) {
		1406	ret = -EFAULT;
		1407	goto out;
		1408	}
		1409	copied++;
		1410	}
		1411	}
		1412	}
		1413	out_resp->count_props = props_count;
		1414
		1415	if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
		1416	copied = 0;
		1417	encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
		1418	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		1419	if (connector->encoder_ids[i] != 0) {
		1420	if (put_user(connector->encoder_ids[i],
		1421	encoder_ptr + copied)) {
		1422	ret = -EFAULT;
		1423	goto out;
		1424	}
		1425	copied++;
		1426	}
		1427	}
		1428	}
		1429	out_resp->count_encoders = encoders_count;
		1430
		1431	out:
		1432	mutex_unlock(&dev->mode_config.mutex);
		1433	return ret;
		1434	}
		1435
		1436	int drm_mode_getencoder(struct drm_device dev, void data,
		1437	struct drm_file *file_priv)
		1438	{
		1439	struct drm_mode_get_encoder *enc_resp = data;
		1440	struct drm_mode_object *obj;
		1441	struct drm_encoder *encoder;
		1442	int ret = 0;
		1443
1963	serge	1444	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1445	return -EINVAL;
		1446
1123	serge	1447	mutex_lock(&dev->mode_config.mutex);
		1448	obj = drm_mode_object_find(dev, enc_resp->encoder_id,
		1449	DRM_MODE_OBJECT_ENCODER);
		1450	if (!obj) {
		1451	ret = -EINVAL;
		1452	goto out;
		1453	}
		1454	encoder = obj_to_encoder(obj);
		1455
		1456	if (encoder->crtc)
		1457	enc_resp->crtc_id = encoder->crtc->base.id;
		1458	else
		1459	enc_resp->crtc_id = 0;
		1460	enc_resp->encoder_type = encoder->encoder_type;
		1461	enc_resp->encoder_id = encoder->base.id;
		1462	enc_resp->possible_crtcs = encoder->possible_crtcs;
		1463	enc_resp->possible_clones = encoder->possible_clones;
		1464
		1465	out:
		1466	mutex_unlock(&dev->mode_config.mutex);
		1467	return ret;
		1468	}
		1469
		1470	/**
		1471	* drm_mode_setcrtc - set CRTC configuration
		1472	* @inode: inode from the ioctl
		1473	* @filp: file * from the ioctl
		1474	* @cmd: cmd from ioctl
		1475	* @arg: arg from ioctl
		1476	*
		1477	* LOCKING:
		1478	* Caller? (FIXME)
		1479	*
		1480	* Build a new CRTC configuration based on user request.
		1481	*
		1482	* Called by the user via ioctl.
		1483	*
		1484	* RETURNS:
		1485	* Zero on success, errno on failure.
		1486	*/
		1487	int drm_mode_setcrtc(struct drm_device dev, void data,
		1488	struct drm_file *file_priv)
		1489	{
		1490	struct drm_mode_config *config = &dev->mode_config;
		1491	struct drm_mode_crtc *crtc_req = data;
		1492	struct drm_mode_object *obj;
		1493	struct drm_crtc crtc, crtcfb;
		1494	struct drm_connector *connector_set = NULL, connector;
		1495	struct drm_framebuffer *fb = NULL;
		1496	struct drm_display_mode *mode = NULL;
		1497	struct drm_mode_set set;
		1498	uint32_t __user *set_connectors_ptr;
		1499	int ret = 0;
		1500	int i;
		1501
1963	serge	1502	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1503	return -EINVAL;
		1504
1123	serge	1505	mutex_lock(&dev->mode_config.mutex);
		1506	obj = drm_mode_object_find(dev, crtc_req->crtc_id,
		1507	DRM_MODE_OBJECT_CRTC);
		1508	if (!obj) {
1179	serge	1509	DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1123	serge	1510	ret = -EINVAL;
		1511	goto out;
		1512	}
		1513	crtc = obj_to_crtc(obj);
1963	serge	1514	DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1123	serge	1515
		1516	if (crtc_req->mode_valid) {
		1517	/* If we have a mode we need a framebuffer. */
		1518	/* If we pass -1, set the mode with the currently bound fb */
		1519	if (crtc_req->fb_id == -1) {
		1520	list_for_each_entry(crtcfb,
		1521	&dev->mode_config.crtc_list, head) {
		1522	if (crtcfb == crtc) {
1179	serge	1523	DRM_DEBUG_KMS("Using current fb for "
		1524	"setmode\n");
1123	serge	1525	fb = crtc->fb;
		1526	}
		1527	}
		1528	} else {
		1529	obj = drm_mode_object_find(dev, crtc_req->fb_id,
		1530	DRM_MODE_OBJECT_FB);
		1531	if (!obj) {
1179	serge	1532	DRM_DEBUG_KMS("Unknown FB ID%d\n",
		1533	crtc_req->fb_id);
1123	serge	1534	ret = -EINVAL;
		1535	goto out;
		1536	}
		1537	fb = obj_to_fb(obj);
		1538	}
		1539
		1540	mode = drm_mode_create(dev);
		1541	drm_crtc_convert_umode(mode, &crtc_req->mode);
		1542	drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
		1543	}
		1544
		1545	if (crtc_req->count_connectors == 0 && mode) {
1179	serge	1546	DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
1123	serge	1547	ret = -EINVAL;
		1548	goto out;
		1549	}
		1550
1179	serge	1551	if (crtc_req->count_connectors > 0 && (!mode \|\| !fb)) {
		1552	DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
1123	serge	1553	crtc_req->count_connectors);
		1554	ret = -EINVAL;
		1555	goto out;
		1556	}
		1557
		1558	if (crtc_req->count_connectors > 0) {
		1559	u32 out_id;
		1560
		1561	/* Avoid unbounded kernel memory allocation */
		1562	if (crtc_req->count_connectors > config->num_connector) {
		1563	ret = -EINVAL;
		1564	goto out;
		1565	}
		1566
		1567	connector_set = kmalloc(crtc_req->count_connectors *
		1568	sizeof(struct drm_connector *),
		1569	GFP_KERNEL);
		1570	if (!connector_set) {
		1571	ret = -ENOMEM;
		1572	goto out;
		1573	}
		1574
		1575	for (i = 0; i < crtc_req->count_connectors; i++) {
		1576	set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
		1577	if (get_user(out_id, &set_connectors_ptr[i])) {
		1578	ret = -EFAULT;
		1579	goto out;
		1580	}
		1581
		1582	obj = drm_mode_object_find(dev, out_id,
		1583	DRM_MODE_OBJECT_CONNECTOR);
		1584	if (!obj) {
1179	serge	1585	DRM_DEBUG_KMS("Connector id %d unknown\n",
		1586	out_id);
1123	serge	1587	ret = -EINVAL;
		1588	goto out;
		1589	}
		1590	connector = obj_to_connector(obj);
1963	serge	1591	DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
		1592	connector->base.id,
		1593	drm_get_connector_name(connector));
1123	serge	1594
		1595	connector_set[i] = connector;
		1596	}
		1597	}
		1598
		1599	set.crtc = crtc;
		1600	set.x = crtc_req->x;
		1601	set.y = crtc_req->y;
		1602	set.mode = mode;
		1603	set.connectors = connector_set;
		1604	set.num_connectors = crtc_req->count_connectors;
1179	serge	1605	set.fb = fb;
1123	serge	1606	ret = crtc->funcs->set_config(&set);
		1607
		1608	out:
		1609	kfree(connector_set);
		1610	mutex_unlock(&dev->mode_config.mutex);
		1611	return ret;
		1612	}
		1613
		1614	int drm_mode_cursor_ioctl(struct drm_device *dev,
		1615	void data, struct drm_file file_priv)
		1616	{
		1617	struct drm_mode_cursor *req = data;
		1618	struct drm_mode_object *obj;
		1619	struct drm_crtc *crtc;
		1620	int ret = 0;
		1621
1963	serge	1622	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1623	return -EINVAL;
		1624
1123	serge	1625	if (!req->flags) {
		1626	DRM_ERROR("no operation set\n");
		1627	return -EINVAL;
		1628	}
		1629
		1630	mutex_lock(&dev->mode_config.mutex);
		1631	obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
		1632	if (!obj) {
1179	serge	1633	DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
1123	serge	1634	ret = -EINVAL;
		1635	goto out;
		1636	}
		1637	crtc = obj_to_crtc(obj);
		1638
		1639	if (req->flags & DRM_MODE_CURSOR_BO) {
		1640	if (!crtc->funcs->cursor_set) {
		1641	DRM_ERROR("crtc does not support cursor\n");
		1642	ret = -ENXIO;
		1643	goto out;
		1644	}
		1645	/* Turns off the cursor if handle is 0 */
		1646	ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
		1647	req->width, req->height);
		1648	}
		1649
		1650	if (req->flags & DRM_MODE_CURSOR_MOVE) {
		1651	if (crtc->funcs->cursor_move) {
		1652	ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
		1653	} else {
		1654	DRM_ERROR("crtc does not support cursor\n");
		1655	ret = -EFAULT;
		1656	goto out;
		1657	}
		1658	}
		1659	out:
		1660	mutex_unlock(&dev->mode_config.mutex);
		1661	return ret;
		1662	}
		1663
		1664	/**
		1665	* drm_mode_addfb - add an FB to the graphics configuration
		1666	* @inode: inode from the ioctl
		1667	* @filp: file * from the ioctl
		1668	* @cmd: cmd from ioctl
		1669	* @arg: arg from ioctl
		1670	*
		1671	* LOCKING:
		1672	* Takes mode config lock.
		1673	*
		1674	* Add a new FB to the specified CRTC, given a user request.
		1675	*
		1676	* Called by the user via ioctl.
		1677	*
		1678	* RETURNS:
		1679	* Zero on success, errno on failure.
		1680	*/
		1681	int drm_mode_addfb(struct drm_device *dev,
		1682	void data, struct drm_file file_priv)
		1683	{
		1684	struct drm_mode_fb_cmd *r = data;
		1685	struct drm_mode_config *config = &dev->mode_config;
		1686	struct drm_framebuffer *fb;
		1687	int ret = 0;
		1688
1963	serge	1689	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1690	return -EINVAL;
		1691
1123	serge	1692	if ((config->min_width > r->width) \|\| (r->width > config->max_width)) {
		1693	DRM_ERROR("mode new framebuffer width not within limits\n");
		1694	return -EINVAL;
		1695	}
		1696	if ((config->min_height > r->height) \|\| (r->height > config->max_height)) {
		1697	DRM_ERROR("mode new framebuffer height not within limits\n");
		1698	return -EINVAL;
		1699	}
		1700
		1701	mutex_lock(&dev->mode_config.mutex);
		1702
1963	serge	1703	/* TODO check buffer is sufficiently large */
1123	serge	1704	/* TODO setup destructor callback */
		1705
		1706	fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
1963	serge	1707	if (IS_ERR(fb)) {
1123	serge	1708	DRM_ERROR("could not create framebuffer\n");
1963	serge	1709	ret = PTR_ERR(fb);
1123	serge	1710	goto out;
		1711	}
		1712
		1713	r->fb_id = fb->base.id;
		1714	list_add(&fb->filp_head, &file_priv->fbs);
1963	serge	1715	DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
1123	serge	1716
		1717	out:
		1718	mutex_unlock(&dev->mode_config.mutex);
		1719	return ret;
		1720	}
		1721
		1722	/**
		1723	* drm_mode_rmfb - remove an FB from the configuration
		1724	* @inode: inode from the ioctl
		1725	* @filp: file * from the ioctl
		1726	* @cmd: cmd from ioctl
		1727	* @arg: arg from ioctl
		1728	*
		1729	* LOCKING:
		1730	* Takes mode config lock.
		1731	*
		1732	* Remove the FB specified by the user.
		1733	*
		1734	* Called by the user via ioctl.
		1735	*
		1736	* RETURNS:
		1737	* Zero on success, errno on failure.
		1738	*/
		1739	int drm_mode_rmfb(struct drm_device *dev,
		1740	void data, struct drm_file file_priv)
		1741	{
		1742	struct drm_mode_object *obj;
		1743	struct drm_framebuffer *fb = NULL;
		1744	struct drm_framebuffer *fbl = NULL;
		1745	uint32_t *id = data;
		1746	int ret = 0;
		1747	int found = 0;
		1748
1963	serge	1749	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1750	return -EINVAL;
		1751
1123	serge	1752	mutex_lock(&dev->mode_config.mutex);
		1753	obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
1963	serge	1754	/* TODO check that we really get a framebuffer back. */
1123	serge	1755	if (!obj) {
		1756	DRM_ERROR("mode invalid framebuffer id\n");
		1757	ret = -EINVAL;
		1758	goto out;
		1759	}
		1760	fb = obj_to_fb(obj);
		1761
		1762	list_for_each_entry(fbl, &file_priv->fbs, filp_head)
		1763	if (fb == fbl)
		1764	found = 1;
		1765
		1766	if (!found) {
		1767	DRM_ERROR("tried to remove a fb that we didn't own\n");
		1768	ret = -EINVAL;
		1769	goto out;
		1770	}
		1771
		1772	/* TODO release all crtc connected to the framebuffer */
		1773	/* TODO unhock the destructor from the buffer object */
		1774
		1775	list_del(&fb->filp_head);
		1776	fb->funcs->destroy(fb);
		1777
		1778	out:
		1779	mutex_unlock(&dev->mode_config.mutex);
		1780	return ret;
		1781	}
		1782
		1783	/**
		1784	* drm_mode_getfb - get FB info
		1785	* @inode: inode from the ioctl
		1786	* @filp: file * from the ioctl
		1787	* @cmd: cmd from ioctl
		1788	* @arg: arg from ioctl
		1789	*
		1790	* LOCKING:
		1791	* Caller? (FIXME)
		1792	*
		1793	* Lookup the FB given its ID and return info about it.
		1794	*
		1795	* Called by the user via ioctl.
		1796	*
		1797	* RETURNS:
		1798	* Zero on success, errno on failure.
		1799	*/
		1800	int drm_mode_getfb(struct drm_device *dev,
		1801	void data, struct drm_file file_priv)
		1802	{
		1803	struct drm_mode_fb_cmd *r = data;
		1804	struct drm_mode_object *obj;
		1805	struct drm_framebuffer *fb;
		1806	int ret = 0;
		1807
1963	serge	1808	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1809	return -EINVAL;
		1810
1123	serge	1811	mutex_lock(&dev->mode_config.mutex);
		1812	obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
		1813	if (!obj) {
		1814	DRM_ERROR("invalid framebuffer id\n");
		1815	ret = -EINVAL;
		1816	goto out;
		1817	}
		1818	fb = obj_to_fb(obj);
		1819
		1820	r->height = fb->height;
		1821	r->width = fb->width;
		1822	r->depth = fb->depth;
		1823	r->bpp = fb->bits_per_pixel;
		1824	r->pitch = fb->pitch;
		1825	fb->funcs->create_handle(fb, file_priv, &r->handle);
		1826
		1827	out:
		1828	mutex_unlock(&dev->mode_config.mutex);
		1829	return ret;
		1830	}
		1831
1412	serge	1832	int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
		1833	void data, struct drm_file file_priv)
		1834	{
		1835	struct drm_clip_rect __user *clips_ptr;
		1836	struct drm_clip_rect *clips = NULL;
		1837	struct drm_mode_fb_dirty_cmd *r = data;
		1838	struct drm_mode_object *obj;
		1839	struct drm_framebuffer *fb;
		1840	unsigned flags;
		1841	int num_clips;
		1842	int ret = 0;
		1843
1963	serge	1844	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		1845	return -EINVAL;
		1846
1412	serge	1847	mutex_lock(&dev->mode_config.mutex);
		1848	obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
		1849	if (!obj) {
		1850	DRM_ERROR("invalid framebuffer id\n");
		1851	ret = -EINVAL;
		1852	goto out_err1;
		1853	}
		1854	fb = obj_to_fb(obj);
		1855
		1856	num_clips = r->num_clips;
		1857	clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr;
		1858
		1859	if (!num_clips != !clips_ptr) {
		1860	ret = -EINVAL;
		1861	goto out_err1;
		1862	}
		1863
		1864	flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
		1865
		1866	/* If userspace annotates copy, clips must come in pairs */
		1867	if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
		1868	ret = -EINVAL;
		1869	goto out_err1;
		1870	}
		1871
		1872	if (num_clips && clips_ptr) {
		1873	clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
		1874	if (!clips) {
		1875	ret = -ENOMEM;
		1876	goto out_err1;
		1877	}
		1878
		1879	ret = copy_from_user(clips, clips_ptr,
		1880	num_clips * sizeof(*clips));
1963	serge	1881	if (ret) {
		1882	ret = -EFAULT;
1412	serge	1883	goto out_err2;
		1884	}
1963	serge	1885	}
1412	serge	1886
		1887	if (fb->funcs->dirty) {
1963	serge	1888	ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
		1889	clips, num_clips);
1412	serge	1890	} else {
		1891	ret = -ENOSYS;
		1892	goto out_err2;
		1893	}
		1894
		1895	out_err2:
		1896	kfree(clips);
		1897	out_err1:
		1898	mutex_unlock(&dev->mode_config.mutex);
		1899	return ret;
		1900	}
		1901
		1902
1123	serge	1903	/**
		1904	* drm_fb_release - remove and free the FBs on this file
		1905	* @filp: file * from the ioctl
		1906	*
		1907	* LOCKING:
		1908	* Takes mode config lock.
		1909	*
		1910	* Destroy all the FBs associated with @filp.
		1911	*
		1912	* Called by the user via ioctl.
		1913	*
		1914	* RETURNS:
		1915	* Zero on success, errno on failure.
		1916	*/
		1917	void drm_fb_release(struct drm_file *priv)
		1918	{
		1919	struct drm_device *dev = priv->minor->dev;
		1920	struct drm_framebuffer fb, tfb;
		1921
		1922	mutex_lock(&dev->mode_config.mutex);
		1923	list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
		1924	list_del(&fb->filp_head);
		1925	fb->funcs->destroy(fb);
		1926	}
		1927	mutex_unlock(&dev->mode_config.mutex);
		1928	}
		1929	#endif
		1930
		1931	/**
		1932	* drm_mode_attachmode - add a mode to the user mode list
		1933	* @dev: DRM device
		1934	* @connector: connector to add the mode to
		1935	* @mode: mode to add
		1936	*
		1937	* Add @mode to @connector's user mode list.
		1938	*/
		1939	static int drm_mode_attachmode(struct drm_device *dev,
		1940	struct drm_connector *connector,
		1941	struct drm_display_mode *mode)
		1942	{
		1943	int ret = 0;
		1944
		1945	list_add_tail(&mode->head, &connector->user_modes);
		1946	return ret;
		1947	}
		1948
		1949	int drm_mode_attachmode_crtc(struct drm_device dev, struct drm_crtc crtc,
		1950	struct drm_display_mode *mode)
		1951	{
		1952	struct drm_connector *connector;
		1953	int ret = 0;
		1954	struct drm_display_mode *dup_mode;
		1955	int need_dup = 0;
		1956	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		1957	if (!connector->encoder)
		1958	break;
		1959	if (connector->encoder->crtc == crtc) {
		1960	if (need_dup)
		1961	dup_mode = drm_mode_duplicate(dev, mode);
		1962	else
		1963	dup_mode = mode;
		1964	ret = drm_mode_attachmode(dev, connector, dup_mode);
		1965	if (ret)
		1966	return ret;
		1967	need_dup = 1;
		1968	}
		1969	}
		1970	return 0;
		1971	}
		1972	EXPORT_SYMBOL(drm_mode_attachmode_crtc);
		1973
		1974	static int drm_mode_detachmode(struct drm_device *dev,
		1975	struct drm_connector *connector,
		1976	struct drm_display_mode *mode)
		1977	{
		1978	int found = 0;
		1979	int ret = 0;
		1980	struct drm_display_mode match_mode, t;
		1981
		1982	list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
		1983	if (drm_mode_equal(match_mode, mode)) {
		1984	list_del(&match_mode->head);
		1985	drm_mode_destroy(dev, match_mode);
		1986	found = 1;
		1987	break;
		1988	}
		1989	}
		1990
		1991	if (!found)
		1992	ret = -EINVAL;
		1993
		1994	return ret;
		1995	}
		1996
		1997	int drm_mode_detachmode_crtc(struct drm_device dev, struct drm_display_mode mode)
		1998	{
		1999	struct drm_connector *connector;
		2000
		2001	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		2002	drm_mode_detachmode(dev, connector, mode);
		2003	}
		2004	return 0;
		2005	}
		2006	EXPORT_SYMBOL(drm_mode_detachmode_crtc);
		2007
		2008	#if 0
		2009
		2010	/**
		2011	* drm_fb_attachmode - Attach a user mode to an connector
		2012	* @inode: inode from the ioctl
		2013	* @filp: file * from the ioctl
		2014	* @cmd: cmd from ioctl
		2015	* @arg: arg from ioctl
		2016	*
		2017	* This attaches a user specified mode to an connector.
		2018	* Called by the user via ioctl.
		2019	*
		2020	* RETURNS:
		2021	* Zero on success, errno on failure.
		2022	*/
		2023	int drm_mode_attachmode_ioctl(struct drm_device *dev,
		2024	void data, struct drm_file file_priv)
		2025	{
		2026	struct drm_mode_mode_cmd *mode_cmd = data;
		2027	struct drm_connector *connector;
		2028	struct drm_display_mode *mode;
		2029	struct drm_mode_object *obj;
		2030	struct drm_mode_modeinfo *umode = &mode_cmd->mode;
		2031	int ret = 0;
		2032
1963	serge	2033	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		2034	return -EINVAL;
		2035
1123	serge	2036	mutex_lock(&dev->mode_config.mutex);
		2037
		2038	obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
		2039	if (!obj) {
		2040	ret = -EINVAL;
		2041	goto out;
		2042	}
		2043	connector = obj_to_connector(obj);
		2044
		2045	mode = drm_mode_create(dev);
		2046	if (!mode) {
		2047	ret = -ENOMEM;
		2048	goto out;
		2049	}
		2050
		2051	drm_crtc_convert_umode(mode, umode);
		2052
		2053	ret = drm_mode_attachmode(dev, connector, mode);
		2054	out:
		2055	mutex_unlock(&dev->mode_config.mutex);
		2056	return ret;
		2057	}
		2058
		2059
		2060	/**
		2061	* drm_fb_detachmode - Detach a user specified mode from an connector
		2062	* @inode: inode from the ioctl
		2063	* @filp: file * from the ioctl
		2064	* @cmd: cmd from ioctl
		2065	* @arg: arg from ioctl
		2066	*
		2067	* Called by the user via ioctl.
		2068	*
		2069	* RETURNS:
		2070	* Zero on success, errno on failure.
		2071	*/
		2072	int drm_mode_detachmode_ioctl(struct drm_device *dev,
		2073	void data, struct drm_file file_priv)
		2074	{
		2075	struct drm_mode_object *obj;
		2076	struct drm_mode_mode_cmd *mode_cmd = data;
		2077	struct drm_connector *connector;
		2078	struct drm_display_mode mode;
		2079	struct drm_mode_modeinfo *umode = &mode_cmd->mode;
		2080	int ret = 0;
		2081
1963	serge	2082	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		2083	return -EINVAL;
		2084
1123	serge	2085	mutex_lock(&dev->mode_config.mutex);
		2086
		2087	obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
		2088	if (!obj) {
		2089	ret = -EINVAL;
		2090	goto out;
		2091	}
		2092	connector = obj_to_connector(obj);
		2093
		2094	drm_crtc_convert_umode(&mode, umode);
		2095	ret = drm_mode_detachmode(dev, connector, &mode);
		2096	out:
		2097	mutex_unlock(&dev->mode_config.mutex);
		2098	return ret;
		2099	}
		2100	#endif
		2101
		2102	struct drm_property drm_property_create(struct drm_device dev, int flags,
		2103	const char *name, int num_values)
		2104	{
		2105	struct drm_property *property = NULL;
		2106
		2107	property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
		2108	if (!property)
		2109	return NULL;
		2110
		2111	if (num_values) {
		2112	property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
		2113	if (!property->values)
		2114	goto fail;
		2115	}
		2116
		2117	drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
		2118	property->flags = flags;
		2119	property->num_values = num_values;
		2120	INIT_LIST_HEAD(&property->enum_blob_list);
		2121
		2122	if (name)
		2123	strncpy(property->name, name, DRM_PROP_NAME_LEN);
		2124
		2125	list_add_tail(&property->head, &dev->mode_config.property_list);
		2126	return property;
		2127	fail:
		2128	kfree(property);
		2129	return NULL;
		2130	}
		2131	EXPORT_SYMBOL(drm_property_create);
		2132
		2133	int drm_property_add_enum(struct drm_property *property, int index,
		2134	uint64_t value, const char *name)
		2135	{
		2136	struct drm_property_enum *prop_enum;
		2137
		2138	if (!(property->flags & DRM_MODE_PROP_ENUM))
		2139	return -EINVAL;
		2140
		2141	if (!list_empty(&property->enum_blob_list)) {
		2142	list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
		2143	if (prop_enum->value == value) {
		2144	strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
		2145	prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
		2146	return 0;
		2147	}
		2148	}
		2149	}
		2150
		2151	prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
		2152	if (!prop_enum)
		2153	return -ENOMEM;
		2154
		2155	strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
		2156	prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
		2157	prop_enum->value = value;
		2158
		2159	property->values[index] = value;
		2160	list_add_tail(&prop_enum->head, &property->enum_blob_list);
		2161	return 0;
		2162	}
		2163	EXPORT_SYMBOL(drm_property_add_enum);
		2164
		2165	void drm_property_destroy(struct drm_device dev, struct drm_property property)
		2166	{
		2167	struct drm_property_enum prop_enum, pt;
		2168
		2169	list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
		2170	list_del(&prop_enum->head);
		2171	kfree(prop_enum);
		2172	}
		2173
		2174	if (property->num_values)
		2175	kfree(property->values);
		2176	drm_mode_object_put(dev, &property->base);
		2177	list_del(&property->head);
		2178	kfree(property);
		2179	}
		2180	EXPORT_SYMBOL(drm_property_destroy);
		2181
		2182	int drm_connector_attach_property(struct drm_connector *connector,
		2183	struct drm_property *property, uint64_t init_val)
		2184	{
		2185	int i;
		2186
		2187	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		2188	if (connector->property_ids[i] == 0) {
		2189	connector->property_ids[i] = property->base.id;
		2190	connector->property_values[i] = init_val;
		2191	break;
		2192	}
		2193	}
		2194
		2195	if (i == DRM_CONNECTOR_MAX_PROPERTY)
		2196	return -EINVAL;
		2197	return 0;
		2198	}
		2199	EXPORT_SYMBOL(drm_connector_attach_property);
		2200
		2201	int drm_connector_property_set_value(struct drm_connector *connector,
		2202	struct drm_property *property, uint64_t value)
		2203	{
		2204	int i;
		2205
		2206	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		2207	if (connector->property_ids[i] == property->base.id) {
		2208	connector->property_values[i] = value;
		2209	break;
		2210	}
		2211	}
		2212
		2213	if (i == DRM_CONNECTOR_MAX_PROPERTY)
		2214	return -EINVAL;
		2215	return 0;
		2216	}
		2217	EXPORT_SYMBOL(drm_connector_property_set_value);
		2218
		2219	int drm_connector_property_get_value(struct drm_connector *connector,
		2220	struct drm_property property, uint64_t val)
		2221	{
		2222	int i;
		2223
		2224	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		2225	if (connector->property_ids[i] == property->base.id) {
		2226	*val = connector->property_values[i];
		2227	break;
		2228	}
		2229	}
		2230
		2231	if (i == DRM_CONNECTOR_MAX_PROPERTY)
		2232	return -EINVAL;
		2233	return 0;
		2234	}
		2235	EXPORT_SYMBOL(drm_connector_property_get_value);
		2236
		2237	#if 0
		2238	int drm_mode_getproperty_ioctl(struct drm_device *dev,
		2239	void data, struct drm_file file_priv)
		2240	{
		2241	struct drm_mode_object *obj;
		2242	struct drm_mode_get_property *out_resp = data;
		2243	struct drm_property *property;
		2244	int enum_count = 0;
		2245	int blob_count = 0;
		2246	int value_count = 0;
		2247	int ret = 0, i;
		2248	int copied;
		2249	struct drm_property_enum *prop_enum;
		2250	struct drm_mode_property_enum __user *enum_ptr;
		2251	struct drm_property_blob *prop_blob;
		2252	uint32_t *blob_id_ptr;
		2253	uint64_t __user *values_ptr;
		2254	uint32_t __user *blob_length_ptr;
		2255
1963	serge	2256	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		2257	return -EINVAL;
		2258
1179	serge	2259	mutex_lock(&dev->mode_config.mutex);
1123	serge	2260	obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
		2261	if (!obj) {
		2262	ret = -EINVAL;
		2263	goto done;
		2264	}
		2265	property = obj_to_property(obj);
		2266
		2267	if (property->flags & DRM_MODE_PROP_ENUM) {
		2268	list_for_each_entry(prop_enum, &property->enum_blob_list, head)
		2269	enum_count++;
		2270	} else if (property->flags & DRM_MODE_PROP_BLOB) {
		2271	list_for_each_entry(prop_blob, &property->enum_blob_list, head)
		2272	blob_count++;
		2273	}
		2274
		2275	value_count = property->num_values;
		2276
		2277	strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
		2278	out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
		2279	out_resp->flags = property->flags;
		2280
		2281	if ((out_resp->count_values >= value_count) && value_count) {
		2282	values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
		2283	for (i = 0; i < value_count; i++) {
		2284	if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
		2285	ret = -EFAULT;
		2286	goto done;
		2287	}
		2288	}
		2289	}
		2290	out_resp->count_values = value_count;
		2291
		2292	if (property->flags & DRM_MODE_PROP_ENUM) {
		2293	if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
		2294	copied = 0;
		2295	enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
		2296	list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
		2297
		2298	if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
		2299	ret = -EFAULT;
		2300	goto done;
		2301	}
		2302
		2303	if (copy_to_user(&enum_ptr[copied].name,
		2304	&prop_enum->name, DRM_PROP_NAME_LEN)) {
		2305	ret = -EFAULT;
		2306	goto done;
		2307	}
		2308	copied++;
		2309	}
		2310	}
		2311	out_resp->count_enum_blobs = enum_count;
		2312	}
		2313
		2314	if (property->flags & DRM_MODE_PROP_BLOB) {
		2315	if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
		2316	copied = 0;
		2317	blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
		2318	blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
		2319
		2320	list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
		2321	if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
		2322	ret = -EFAULT;
		2323	goto done;
		2324	}
		2325
		2326	if (put_user(prop_blob->length, blob_length_ptr + copied)) {
		2327	ret = -EFAULT;
		2328	goto done;
		2329	}
		2330
		2331	copied++;
		2332	}
		2333	}
		2334	out_resp->count_enum_blobs = blob_count;
		2335	}
		2336	done:
1179	serge	2337	mutex_unlock(&dev->mode_config.mutex);
1123	serge	2338	return ret;
		2339	}
		2340	#endif
		2341
		2342	static struct drm_property_blob drm_property_create_blob(struct drm_device dev, int length,
		2343	void *data)
		2344	{
		2345	struct drm_property_blob *blob;
		2346
		2347	if (!length \|\| !data)
		2348	return NULL;
		2349
		2350	blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
		2351	if (!blob)
		2352	return NULL;
		2353
		2354	blob->data = (void )((char )blob + sizeof(struct drm_property_blob));
		2355	blob->length = length;
		2356
		2357	memcpy(blob->data, data, length);
		2358
		2359	drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
		2360
		2361	list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
		2362	return blob;
		2363	}
		2364
		2365	static void drm_property_destroy_blob(struct drm_device *dev,
		2366	struct drm_property_blob *blob)
		2367	{
		2368	drm_mode_object_put(dev, &blob->base);
		2369	list_del(&blob->head);
		2370	kfree(blob);
		2371	}
		2372
		2373	#if 0
		2374	int drm_mode_getblob_ioctl(struct drm_device *dev,
		2375	void data, struct drm_file file_priv)
		2376	{
		2377	struct drm_mode_object *obj;
		2378	struct drm_mode_get_blob *out_resp = data;
		2379	struct drm_property_blob *blob;
		2380	int ret = 0;
		2381	void *blob_ptr;
		2382
1963	serge	2383	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		2384	return -EINVAL;
		2385
1123	serge	2386	mutex_lock(&dev->mode_config.mutex);
		2387	obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
		2388	if (!obj) {
		2389	ret = -EINVAL;
		2390	goto done;
		2391	}
		2392	blob = obj_to_blob(obj);
		2393
		2394	if (out_resp->length == blob->length) {
		2395	blob_ptr = (void *)(unsigned long)out_resp->data;
		2396	if (copy_to_user(blob_ptr, blob->data, blob->length)){
		2397	ret = -EFAULT;
		2398	goto done;
		2399	}
		2400	}
		2401	out_resp->length = blob->length;
		2402
		2403	done:
		2404	mutex_unlock(&dev->mode_config.mutex);
		2405	return ret;
		2406	}
		2407	#endif
		2408
		2409	int drm_mode_connector_update_edid_property(struct drm_connector *connector,
		2410	struct edid *edid)
		2411	{
		2412	struct drm_device *dev = connector->dev;
1963	serge	2413	int ret = 0, size;
1123	serge	2414
		2415	if (connector->edid_blob_ptr)
		2416	drm_property_destroy_blob(dev, connector->edid_blob_ptr);
		2417
		2418	/* Delete edid, when there is none. */
		2419	if (!edid) {
		2420	connector->edid_blob_ptr = NULL;
		2421	ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
		2422	return ret;
		2423	}
		2424
1963	serge	2425	size = EDID_LENGTH * (1 + edid->extensions);
		2426	connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
		2427	size, edid);
1123	serge	2428
		2429	ret = drm_connector_property_set_value(connector,
		2430	dev->mode_config.edid_property,
		2431	connector->edid_blob_ptr->base.id);
		2432
		2433	return ret;
		2434	}
		2435	EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
		2436
		2437	#if 0
		2438	int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
		2439	void data, struct drm_file file_priv)
		2440	{
		2441	struct drm_mode_connector_set_property *out_resp = data;
		2442	struct drm_mode_object *obj;
		2443	struct drm_property *property;
		2444	struct drm_connector *connector;
		2445	int ret = -EINVAL;
		2446	int i;
		2447
1963	serge	2448	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		2449	return -EINVAL;
		2450
1179	serge	2451	mutex_lock(&dev->mode_config.mutex);
1123	serge	2452
		2453	obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
		2454	if (!obj) {
		2455	goto out;
		2456	}
		2457	connector = obj_to_connector(obj);
		2458
		2459	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
		2460	if (connector->property_ids[i] == out_resp->prop_id)
		2461	break;
		2462	}
		2463
		2464	if (i == DRM_CONNECTOR_MAX_PROPERTY) {
		2465	goto out;
		2466	}
		2467
		2468	obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
		2469	if (!obj) {
		2470	goto out;
		2471	}
		2472	property = obj_to_property(obj);
		2473
		2474	if (property->flags & DRM_MODE_PROP_IMMUTABLE)
		2475	goto out;
		2476
		2477	if (property->flags & DRM_MODE_PROP_RANGE) {
		2478	if (out_resp->value < property->values[0])
		2479	goto out;
		2480
		2481	if (out_resp->value > property->values[1])
		2482	goto out;
		2483	} else {
		2484	int found = 0;
		2485	for (i = 0; i < property->num_values; i++) {
		2486	if (property->values[i] == out_resp->value) {
		2487	found = 1;
		2488	break;
		2489	}
		2490	}
		2491	if (!found) {
		2492	goto out;
		2493	}
		2494	}
		2495
		2496	/* Do DPMS ourselves */
		2497	if (property == connector->dev->mode_config.dpms_property) {
		2498	if (connector->funcs->dpms)
		2499	(*connector->funcs->dpms)(connector, (int) out_resp->value);
		2500	ret = 0;
		2501	} else if (connector->funcs->set_property)
		2502	ret = connector->funcs->set_property(connector, property, out_resp->value);
		2503
1321	serge	2504	/* store the property value if successful */
1123	serge	2505	if (!ret)
		2506	drm_connector_property_set_value(connector, property, out_resp->value);
		2507	out:
1179	serge	2508	mutex_unlock(&dev->mode_config.mutex);
1123	serge	2509	return ret;
		2510	}
		2511	#endif
		2512
		2513	int drm_mode_connector_attach_encoder(struct drm_connector *connector,
		2514	struct drm_encoder *encoder)
		2515	{
		2516	int i;
		2517
		2518	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		2519	if (connector->encoder_ids[i] == 0) {
		2520	connector->encoder_ids[i] = encoder->base.id;
		2521	return 0;
		2522	}
		2523	}
		2524	return -ENOMEM;
		2525	}
		2526	EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
		2527
		2528	void drm_mode_connector_detach_encoder(struct drm_connector *connector,
		2529	struct drm_encoder *encoder)
		2530	{
		2531	int i;
		2532	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		2533	if (connector->encoder_ids[i] == encoder->base.id) {
		2534	connector->encoder_ids[i] = 0;
		2535	if (connector->encoder == encoder)
		2536	connector->encoder = NULL;
		2537	break;
		2538	}
		2539	}
		2540	}
		2541	EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
		2542
		2543	bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
		2544	int gamma_size)
		2545	{
		2546	crtc->gamma_size = gamma_size;
		2547
		2548	crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
		2549	if (!crtc->gamma_store) {
		2550	crtc->gamma_size = 0;
		2551	return false;
		2552	}
		2553
		2554	return true;
		2555	}
		2556	EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
		2557
		2558	#if 0
		2559	int drm_mode_gamma_set_ioctl(struct drm_device *dev,
		2560	void data, struct drm_file file_priv)
		2561	{
		2562	struct drm_mode_crtc_lut *crtc_lut = data;
		2563	struct drm_mode_object *obj;
		2564	struct drm_crtc *crtc;
		2565	void r_base, g_base, *b_base;
		2566	int size;
		2567	int ret = 0;
		2568
1963	serge	2569	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		2570	return -EINVAL;
		2571
1179	serge	2572	mutex_lock(&dev->mode_config.mutex);
1123	serge	2573	obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
		2574	if (!obj) {
		2575	ret = -EINVAL;
		2576	goto out;
		2577	}
		2578	crtc = obj_to_crtc(obj);
		2579
		2580	/* memcpy into gamma store */
		2581	if (crtc_lut->gamma_size != crtc->gamma_size) {
		2582	ret = -EINVAL;
		2583	goto out;
		2584	}
		2585
		2586	size = crtc_lut->gamma_size * (sizeof(uint16_t));
		2587	r_base = crtc->gamma_store;
		2588	if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
		2589	ret = -EFAULT;
		2590	goto out;
		2591	}
		2592
		2593	g_base = r_base + size;
		2594	if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
		2595	ret = -EFAULT;
		2596	goto out;
		2597	}
		2598
		2599	b_base = g_base + size;
		2600	if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
		2601	ret = -EFAULT;
		2602	goto out;
		2603	}
		2604
1963	serge	2605	crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
1123	serge	2606
		2607	out:
1179	serge	2608	mutex_unlock(&dev->mode_config.mutex);
1123	serge	2609	return ret;
		2610
		2611	}
		2612
		2613	int drm_mode_gamma_get_ioctl(struct drm_device *dev,
		2614	void data, struct drm_file file_priv)
		2615	{
		2616	struct drm_mode_crtc_lut *crtc_lut = data;
		2617	struct drm_mode_object *obj;
		2618	struct drm_crtc *crtc;
		2619	void r_base, g_base, *b_base;
		2620	int size;
		2621	int ret = 0;
		2622
1963	serge	2623	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		2624	return -EINVAL;
		2625
1179	serge	2626	mutex_lock(&dev->mode_config.mutex);
1123	serge	2627	obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
		2628	if (!obj) {
		2629	ret = -EINVAL;
		2630	goto out;
		2631	}
		2632	crtc = obj_to_crtc(obj);
		2633
		2634	/* memcpy into gamma store */
		2635	if (crtc_lut->gamma_size != crtc->gamma_size) {
		2636	ret = -EINVAL;
		2637	goto out;
		2638	}
		2639
		2640	size = crtc_lut->gamma_size * (sizeof(uint16_t));
		2641	r_base = crtc->gamma_store;
		2642	if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
		2643	ret = -EFAULT;
		2644	goto out;
		2645	}
		2646
		2647	g_base = r_base + size;
		2648	if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
		2649	ret = -EFAULT;
		2650	goto out;
		2651	}
		2652
		2653	b_base = g_base + size;
		2654	if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
		2655	ret = -EFAULT;
		2656	goto out;
		2657	}
		2658	out:
1179	serge	2659	mutex_unlock(&dev->mode_config.mutex);
1123	serge	2660	return ret;
		2661	}
		2662
		2663	#endif
1179	serge	2664
		2665
1963	serge	2666	void drm_mode_config_reset(struct drm_device *dev)
		2667	{
		2668	struct drm_crtc *crtc;
		2669	struct drm_encoder *encoder;
		2670	struct drm_connector *connector;
		2671
		2672	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
		2673	if (crtc->funcs->reset)
		2674	crtc->funcs->reset(crtc);
		2675
		2676	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
		2677	if (encoder->funcs->reset)
		2678	encoder->funcs->reset(encoder);
		2679
		2680	list_for_each_entry(connector, &dev->mode_config.connector_list, head)
		2681	if (connector->funcs->reset)
		2682	connector->funcs->reset(connector);
		2683	}
		2684	EXPORT_SYMBOL(drm_mode_config_reset);

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(root)/drivers/video/drm/drm_crtc.c – Rev 2160