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

Subversion Repositories Kolibri OS

(root)/drivers/video/drm/drm_crtc.c – Rev 1125