vbox_mode.c@ 60919

Last change on this file since 60919 was 60919, checked in by vboxsync, 9 years ago
bugref:8087: Additions/x11: support non-root X server: work around a problem with wrong cursor hot-spot positions in the kernel video driver after a host save and restore.
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1	/* $Id: vbox_mode.c 60919 2016-05-10 10:33:28Z vboxsync $ */
2	/** @file
3	* VirtualBox Additions Linux kernel video driver
4	*/
5
6	/*
7	* Copyright (C) 2013 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	* --------------------------------------------------------------------
17	*
18	* This code is based on
19	* ast_mode.c
20	* with the following copyright and permission notice:
21	*
22	* Copyright 2012 Red Hat Inc.
23	* Parts based on xf86-video-ast
24	* Copyright (c) 2005 ASPEED Technology Inc.
25	*
26	* Permission is hereby granted, free of charge, to any person obtaining a
27	* copy of this software and associated documentation files (the
28	* "Software"), to deal in the Software without restriction, including
29	* without limitation the rights to use, copy, modify, merge, publish,
30	* distribute, sub license, and/or sell copies of the Software, and to
31	* permit persons to whom the Software is furnished to do so, subject to
32	* the following conditions:
33	*
34	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
35	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
36	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
37	* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
38	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
39	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
40	* USE OR OTHER DEALINGS IN THE SOFTWARE.
41	*
42	* The above copyright notice and this permission notice (including the
43	* next paragraph) shall be included in all copies or substantial portions
44	* of the Software.
45	*
46	*/
47	/*
48	* Authors: Dave Airlie <[email protected]>
49	*/
50	#include "vbox_drv.h"
51
52	#include <VBox/VBoxVideo.h>
53
54	#include <linux/export.h>
55	#include <drm/drm_crtc_helper.h>
56	#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 18, 0)
57	# include <drm/drm_plane_helper.h>
58	#endif
59
60	static int vbox_cursor_set2(struct drm_crtc crtc, struct drm_file file_priv,
61	uint32_t handle, uint32_t width, uint32_t height,
62	int32_t hot_x, int32_t hot_y);
63	static int vbox_cursor_move(struct drm_crtc *crtc, int x, int y);
64
65	/** Set a graphics mode. Poke any required values into registers, do an HGSMI
66	* mode set and tell the host we support advanced graphics functions.
67	*/
68	static void vbox_do_modeset(struct drm_crtc *crtc,
69	const struct drm_display_mode *mode)
70	{
71	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
72	struct vbox_private *vbox;
73	int width, height, bpp, pitch;
74	unsigned crtc_id;
75	uint16_t flags;
76
77	LogFunc(("vboxvideo: %d: vbox_crtc=%p, CRTC_FB(crtc)=%p\n", __LINE__,
78	vbox_crtc, CRTC_FB(crtc)));
79	vbox = crtc->dev->dev_private;
80	width = mode->hdisplay ? mode->hdisplay : 640;
81	height = mode->vdisplay ? mode->vdisplay : 480;
82	crtc_id = vbox_crtc->crtc_id;
83	bpp = crtc->enabled ? CRTC_FB(crtc)->bits_per_pixel : 32;
84	#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 3, 0)
85	pitch = crtc->enabled ? CRTC_FB(crtc)->pitch : width * bpp / 8;
86	#else
87	pitch = crtc->enabled ? CRTC_FB(crtc)->pitches[0] : width * bpp / 8;
88	#endif
89	/* This is the old way of setting graphics modes. It assumed one screen
90	* and a frame-buffer at the start of video RAM. On older versions of
91	* VirtualBox, certain parts of the code still assume that the first
92	* screen is programmed this way, so try to fake it. */
93	if ( vbox_crtc->crtc_id == 0
94	&& crtc->enabled
95	&& vbox_crtc->fb_offset / pitch < 0xffff - crtc->y
96	&& vbox_crtc->fb_offset % (bpp / 8) == 0)
97	VBoxVideoSetModeRegisters(width, height, pitch * 8 / bpp,
98	CRTC_FB(crtc)->bits_per_pixel, 0,
99	vbox_crtc->fb_offset % pitch / bpp * 8 + crtc->x,
100	vbox_crtc->fb_offset / pitch + crtc->y);
101	flags = VBVA_SCREEN_F_ACTIVE;
102	flags \|= (crtc->enabled && !vbox_crtc->blanked ? 0 : VBVA_SCREEN_F_BLANK);
103	flags \|= (vbox_crtc->disconnected ? VBVA_SCREEN_F_DISABLED : 0);
104	VBoxHGSMIProcessDisplayInfo(&vbox->submit_info, vbox_crtc->crtc_id,
105	crtc->x, crtc->y,
106	crtc->x * bpp / 8 + crtc->y * pitch,
107	pitch, width, height,
108	vbox_crtc->blanked ? 0 : bpp, flags);
109	VBoxHGSMIReportFlagsLocation(&vbox->submit_info, vbox->host_flags_offset);
110	LogFunc(("vboxvideo: %d\n", __LINE__));
111	}
112
113	static int vbox_set_view(struct drm_crtc *crtc)
114	{
115	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
116	struct vbox_private *vbox = crtc->dev->dev_private;
117	void *p;
118
119	LogFunc(("vboxvideo: %d: vbox_crtc=%p\n", __LINE__, vbox_crtc));
120	/* Tell the host about the view. This design originally targeted the
121	* Windows XP driver architecture and assumed that each screen would have
122	* a dedicated frame buffer with the command buffer following it, the whole
123	* being a "view". The host works out which screen a command buffer belongs
124	* to by checking whether it is in the first view, then whether it is in the
125	* second and so on. The first match wins. We cheat around this by making
126	* the first view be the managed memory plus the first command buffer, the
127	* second the same plus the second buffer and so on. */
128	p = VBoxHGSMIBufferAlloc(&vbox->submit_info, sizeof(VBVAINFOVIEW), HGSMI_CH_VBVA,
129	VBVA_INFO_VIEW);
130	if (p)
131	{
132	VBVAINFOVIEW pInfo = (VBVAINFOVIEW )p;
133	pInfo->u32ViewIndex = vbox_crtc->crtc_id;
134	pInfo->u32ViewOffset = vbox_crtc->fb_offset;
135	pInfo->u32ViewSize = vbox->vram_size - vbox_crtc->fb_offset
136	+ vbox_crtc->crtc_id * VBVA_MIN_BUFFER_SIZE;
137	pInfo->u32MaxScreenSize = vbox->vram_size - vbox_crtc->fb_offset;
138	VBoxHGSMIBufferSubmit(&vbox->submit_info, p);
139	VBoxHGSMIBufferFree(&vbox->submit_info, p);
140	}
141	else
142	return -ENOMEM;
143	LogFunc(("vboxvideo: %d: p=%p\n", __LINE__, p));
144	return 0;
145	}
146
147	static void vbox_crtc_load_lut(struct drm_crtc *crtc)
148	{
149
150	}
151
152	static void vbox_crtc_dpms(struct drm_crtc *crtc, int mode)
153	{
154	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
155	struct vbox_private *vbox = crtc->dev->dev_private;
156
157	LogFunc(("vboxvideo: %d: vbox_crtc=%p, mode=%d\n", __LINE__, vbox_crtc,
158	mode));
159	switch (mode) {
160	case DRM_MODE_DPMS_ON:
161	vbox_crtc->blanked = false;
162	break;
163	case DRM_MODE_DPMS_STANDBY:
164	case DRM_MODE_DPMS_SUSPEND:
165	case DRM_MODE_DPMS_OFF:
166	vbox_crtc->blanked = true;
167	break;
168	}
169	mutex_lock(&vbox->hw_mutex);
170	vbox_do_modeset(crtc, &crtc->hwmode);
171	mutex_unlock(&vbox->hw_mutex);
172	LogFunc(("vboxvideo: %d\n", __LINE__));
173	}
174
175	static bool vbox_crtc_mode_fixup(struct drm_crtc *crtc,
176	const struct drm_display_mode *mode,
177	struct drm_display_mode *adjusted_mode)
178	{
179	return true;
180	}
181
182	/* We move buffers which are not in active use out of VRAM to save memory. */
183	static int vbox_crtc_do_set_base(struct drm_crtc *crtc,
184	struct drm_framebuffer *fb,
185	int x, int y, int atomic)
186	{
187	struct vbox_private *vbox = crtc->dev->dev_private;
188	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
189	struct drm_gem_object *obj;
190	struct vbox_framebuffer *vbox_fb;
191	struct vbox_bo *bo;
192	int ret;
193	u64 gpu_addr;
194
195	LogFunc(("vboxvideo: %d: fb=%p, vbox_crtc=%p\n", __LINE__, fb, vbox_crtc));
196	/* push the previous fb to system ram */
197	if (!atomic && fb) {
198	vbox_fb = to_vbox_framebuffer(fb);
199	obj = vbox_fb->obj;
200	bo = gem_to_vbox_bo(obj);
201	ret = vbox_bo_reserve(bo, false);
202	if (ret)
203	return ret;
204	vbox_bo_push_sysram(bo);
205	vbox_bo_unreserve(bo);
206	}
207
208	vbox_fb = to_vbox_framebuffer(CRTC_FB(crtc));
209	obj = vbox_fb->obj;
210	bo = gem_to_vbox_bo(obj);
211
212	ret = vbox_bo_reserve(bo, false);
213	if (ret)
214	return ret;
215
216	ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
217	if (ret) {
218	vbox_bo_unreserve(bo);
219	return ret;
220	}
221
222	if (&vbox->fbdev->afb == vbox_fb) {
223	/* if pushing console in kmap it */
224	ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
225	if (ret)
226	DRM_ERROR("failed to kmap fbcon\n");
227	}
228	vbox_bo_unreserve(bo);
229
230	/* vbox_set_start_address_crt1(crtc, (u32)gpu_addr); */
231	vbox_crtc->fb_offset = gpu_addr;
232	if (vbox_crtc->crtc_id == 0) {
233	vbox->input_mapping_width = CRTC_FB(crtc)->width;
234	vbox->input_mapping_height = CRTC_FB(crtc)->height;
235	}
236	LogFunc(("vboxvideo: %d: vbox_fb=%p, obj=%p, bo=%p, gpu_addr=%u\n",
237	__LINE__, vbox_fb, obj, bo, (unsigned)gpu_addr));
238	return 0;
239	}
240
241	static int vbox_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
242	struct drm_framebuffer *old_fb)
243	{
244	LogFunc(("vboxvideo: %d\n", __LINE__));
245	return vbox_crtc_do_set_base(crtc, old_fb, x, y, 0);
246	}
247
248	static int vbox_crtc_mode_set(struct drm_crtc *crtc,
249	struct drm_display_mode *mode,
250	struct drm_display_mode *adjusted_mode,
251	int x, int y,
252	struct drm_framebuffer *old_fb)
253	{
254	struct vbox_private *vbox = crtc->dev->dev_private;
255	int rc = 0;
256
257	LogFunc(("vboxvideo: %d: vbox=%p\n", __LINE__, vbox));
258	vbox_crtc_mode_set_base(crtc, x, y, old_fb);
259	mutex_lock(&vbox->hw_mutex);
260	rc = vbox_set_view(crtc);
261	if (!rc)
262	vbox_do_modeset(crtc, mode);
263	/* Note that the input mapping is always relative to the first screen. */
264	VBoxHGSMIUpdateInputMapping(&vbox->submit_info, 0, 0,
265	vbox->input_mapping_width,
266	vbox->input_mapping_height);
267	mutex_unlock(&vbox->hw_mutex);
268	LogFunc(("vboxvideo: %d\n", __LINE__));
269	return rc;
270	}
271
272	static void vbox_crtc_disable(struct drm_crtc *crtc)
273	{
274
275	}
276
277	static void vbox_crtc_prepare(struct drm_crtc *crtc)
278	{
279
280	}
281
282	static void vbox_crtc_commit(struct drm_crtc *crtc)
283	{
284
285	}
286
287
288	static const struct drm_crtc_helper_funcs vbox_crtc_helper_funcs = {
289	.dpms = vbox_crtc_dpms,
290	.mode_fixup = vbox_crtc_mode_fixup,
291	.mode_set = vbox_crtc_mode_set,
292	/* .mode_set_base = vbox_crtc_mode_set_base, */
293	.disable = vbox_crtc_disable,
294	.load_lut = vbox_crtc_load_lut,
295	.prepare = vbox_crtc_prepare,
296	.commit = vbox_crtc_commit,
297
298	};
299
300	static void vbox_crtc_reset(struct drm_crtc *crtc)
301	{
302
303	}
304
305
306	static void vbox_crtc_destroy(struct drm_crtc *crtc)
307	{
308	drm_crtc_cleanup(crtc);
309	kfree(crtc);
310	}
311
312	static const struct drm_crtc_funcs vbox_crtc_funcs = {
313	.cursor_move = vbox_cursor_move,
314	.cursor_set2 = vbox_cursor_set2,
315	.reset = vbox_crtc_reset,
316	.set_config = drm_crtc_helper_set_config,
317	/* .gamma_set = vbox_crtc_gamma_set, */
318	.destroy = vbox_crtc_destroy,
319	};
320
321	static struct vbox_crtc vbox_crtc_init(struct drm_device dev, unsigned i)
322	{
323	struct vbox_crtc *vbox_crtc;
324
325	LogFunc(("vboxvideo: %d\n", __LINE__));
326	vbox_crtc = kzalloc(sizeof(struct vbox_crtc), GFP_KERNEL);
327	if (!vbox_crtc)
328	return NULL;
329	vbox_crtc->crtc_id = i;
330
331	drm_crtc_init(dev, &vbox_crtc->base, &vbox_crtc_funcs);
332	drm_mode_crtc_set_gamma_size(&vbox_crtc->base, 256);
333	drm_crtc_helper_add(&vbox_crtc->base, &vbox_crtc_helper_funcs);
334	LogFunc(("vboxvideo: %d: crtc=%p\n", __LINE__, vbox_crtc));
335
336	return vbox_crtc;
337	}
338
339	static void vbox_encoder_destroy(struct drm_encoder *encoder)
340	{
341	LogFunc(("vboxvideo: %d: encoder=%p\n", __LINE__, encoder));
342	drm_encoder_cleanup(encoder);
343	kfree(encoder);
344	}
345
346	#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0)
347	static struct drm_encoder drm_encoder_find(struct drm_device dev, uint32_t id)
348	{
349	struct drm_mode_object *mo;
350	mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
351	return mo ? obj_to_encoder(mo) : NULL;
352	}
353	#endif
354
355	static struct drm_encoder vbox_best_single_encoder(struct drm_connector connector)
356	{
357	int enc_id = connector->encoder_ids[0];
358
359	LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, connector));
360	/* pick the encoder ids */
361	if (enc_id)
362	return drm_encoder_find(connector->dev, enc_id);
363	LogFunc(("vboxvideo: %d\n", __LINE__));
364	return NULL;
365	}
366
367
368	static const struct drm_encoder_funcs vbox_enc_funcs = {
369	.destroy = vbox_encoder_destroy,
370	};
371
372	static void vbox_encoder_dpms(struct drm_encoder *encoder, int mode)
373	{
374
375	}
376
377	static bool vbox_mode_fixup(struct drm_encoder *encoder,
378	const struct drm_display_mode *mode,
379	struct drm_display_mode *adjusted_mode)
380	{
381	return true;
382	}
383
384	static void vbox_encoder_mode_set(struct drm_encoder *encoder,
385	struct drm_display_mode *mode,
386	struct drm_display_mode *adjusted_mode)
387	{
388	}
389
390	static void vbox_encoder_prepare(struct drm_encoder *encoder)
391	{
392
393	}
394
395	static void vbox_encoder_commit(struct drm_encoder *encoder)
396	{
397
398	}
399
400
401	static const struct drm_encoder_helper_funcs vbox_enc_helper_funcs = {
402	.dpms = vbox_encoder_dpms,
403	.mode_fixup = vbox_mode_fixup,
404	.prepare = vbox_encoder_prepare,
405	.commit = vbox_encoder_commit,
406	.mode_set = vbox_encoder_mode_set,
407	};
408
409	static struct drm_encoder vbox_encoder_init(struct drm_device dev, unsigned i)
410	{
411	struct vbox_encoder *vbox_encoder;
412
413	LogFunc(("vboxvideo: %d: dev=%d\n", __LINE__));
414	vbox_encoder = kzalloc(sizeof(struct vbox_encoder), GFP_KERNEL);
415	if (!vbox_encoder)
416	return NULL;
417
418	drm_encoder_init(dev, &vbox_encoder->base, &vbox_enc_funcs,
419	DRM_MODE_ENCODER_DAC
420	#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 5, 0)
421	, NULL
422	#endif
423	);
424	drm_encoder_helper_add(&vbox_encoder->base, &vbox_enc_helper_funcs);
425
426	vbox_encoder->base.possible_crtcs = 1 << i;
427	LogFunc(("vboxvideo: %d: vbox_encoder=%p\n", __LINE__, vbox_encoder));
428	return &vbox_encoder->base;
429	}
430
431	/** Generate EDID data with a mode-unique serial number for the virtual
432	* monitor to try to persuade Unity that different modes correspond to
433	* different monitors and it should not try to force the same resolution on
434	* them. */
435	static void vbox_set_edid(struct drm_connector *connector, int width,
436	int height)
437	{
438	enum { EDID_SIZE = 128 };
439	unsigned char edid[EDID_SIZE] = {
440	0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, /* header */
441	0x58, 0x58, /* manufacturer (VBX) */
442	0x00, 0x00, /* product code */
443	0x00, 0x00,0x00, 0x00, /* serial number goes here */
444	0x01, /* week of manufacture */
445	0x00, /* year of manufacture */
446	0x01, 0x03, /* EDID version */
447	0x80, /* capabilities - digital */
448	0x00, /* horiz. res in cm, zero for projectors */
449	0x00, /* vert. res in cm */
450	0x78, /* display gamma (120 == 2.2). */
451	0xEE, /* features (standby, suspend, off, RGB, standard colour space,
452	* preferred timing mode) */
453	0xEE, 0x91, 0xA3, 0x54, 0x4C, 0x99, 0x26, 0x0F, 0x50, 0x54,
454	/* chromaticity for standard colour space. */
455	0x00, 0x00, 0x00, /* no default timings */
456	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
457	0x01, 0x01, 0x01, 0x01, /* no standard timings */
458	0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x00, 0x02, 0x02, 0x02, 0x02,
459	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* descriptor block 1 goes here */
460	0x00, 0x00, 0x00, 0xFD, 0x00, /* descriptor block 2, monitor ranges */
461	0x00, 0xC8, 0x00, 0xC8, 0x64, 0x00, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20,
462	0x20, /* 0-200Hz vertical, 0-200KHz horizontal, 1000MHz pixel clock */
463	0x00, 0x00, 0x00, 0xFC, 0x00, /* descriptor block 3, monitor name */
464	'V', 'B', 'O', 'X', ' ', 'm', 'o', 'n', 'i', 't', 'o', 'r', '\n',
465	0x00, 0x00, 0x00, 0x10, 0x00, /* descriptor block 4: dummy data */
466	0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
467	0x20,
468	0x00, /* number of extensions */
469	0x00 /* checksum goes here */
470	};
471	int clock = (width + 6) * (height + 6) * 60 / 10000;
472	unsigned i;
473	unsigned sum = 0;
474
475	edid[12] = width & 0xff;
476	edid[13] = width >> 8;
477	edid[14] = height & 0xff;
478	edid[15] = height >> 8;
479	edid[54] = clock & 0xff;
480	edid[55] = clock >> 8;
481	edid[56] = width & 0xff;
482	edid[58] = (width >> 4) & 0xf0;
483	edid[59] = height & 0xff;
484	edid[61] = (height >> 4) & 0xf0;
485	for (i = 0; i < EDID_SIZE - 1; ++i)
486	sum += edid[i];
487	edid[EDID_SIZE - 1] = (0x100 - (sum & 0xFF)) & 0xFF;
488	drm_mode_connector_update_edid_property(connector, (struct edid *)edid);
489	}
490
491	static int vbox_get_modes(struct drm_connector *connector)
492	{
493	struct vbox_connector *vbox_connector = NULL;
494	struct drm_display_mode *mode = NULL;
495	struct vbox_private *vbox = NULL;
496	unsigned num_modes = 0;
497	int preferred_width, preferred_height;
498
499	LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, connector));
500	vbox_connector = to_vbox_connector(connector);
501	vbox = connector->dev->dev_private;
502	if (vbox_connector->vbox_crtc->crtc_id == 0)
503	vbox_enable_caps(vbox);
504	if (!vbox->initial_mode_queried) {
505	if (vbox_connector->vbox_crtc->crtc_id == 0) {
506	vbox->initial_mode_queried = true;
507	vbox_report_hotplug(vbox);
508	}
509	return drm_add_modes_noedid(connector, 800, 600);
510	}
511	num_modes = drm_add_modes_noedid(connector, 2560, 1600);
512	preferred_width = vbox_connector->mode_hint.width ? vbox_connector->mode_hint.width : 1024;
513	preferred_height = vbox_connector->mode_hint.height ? vbox_connector->mode_hint.height : 768;
514	mode = drm_cvt_mode(connector->dev, preferred_width, preferred_height, 60, false,
515	false, false);
516	if (mode)
517	{
518	mode->type \|= DRM_MODE_TYPE_PREFERRED;
519	drm_mode_probed_add(connector, mode);
520	++num_modes;
521	}
522	vbox_set_edid(connector, preferred_width, preferred_height);
523	return num_modes;
524	}
525
526	static int vbox_mode_valid(struct drm_connector *connector,
527	struct drm_display_mode *mode)
528	{
529	return MODE_OK;
530	}
531
532	static void vbox_connector_destroy(struct drm_connector *connector)
533	{
534	struct vbox_connector *vbox_connector = NULL;
535
536	LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, connector));
537	vbox_connector = to_vbox_connector(connector);
538	#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 17, 0)
539	drm_sysfs_connector_remove(connector);
540	#else
541	drm_connector_unregister(connector);
542	#endif
543	drm_connector_cleanup(connector);
544	kfree(connector);
545	}
546
547	static enum drm_connector_status
548	vbox_connector_detect(struct drm_connector *connector, bool force)
549	{
550	struct vbox_connector *vbox_connector = NULL;
551
552	(void) force;
553	LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, connector));
554	vbox_connector = to_vbox_connector(connector);
555	return vbox_connector->mode_hint.disconnected ?
556	connector_status_disconnected : connector_status_connected;
557	}
558
559	static int vbox_fill_modes(struct drm_connector *connector, uint32_t max_x, uint32_t max_y)
560	{
561	struct vbox_connector *vbox_connector;
562	struct drm_device *dev;
563	struct drm_display_mode mode, iterator;
564
565	LogFunc(("vboxvideo: %d: connector=%p, max_x=%lu, max_y = %lu\n", __LINE__,
566	connector, (unsigned long)max_x, (unsigned long)max_y));
567	vbox_connector = to_vbox_connector(connector);
568	dev = vbox_connector->base.dev;
569	list_for_each_entry_safe(mode, iterator, &connector->modes, head)
570	{
571	list_del(&mode->head);
572	drm_mode_destroy(dev, mode);
573	}
574	return drm_helper_probe_single_connector_modes(connector, max_x, max_y);
575	}
576
577	static const struct drm_connector_helper_funcs vbox_connector_helper_funcs = {
578	.mode_valid = vbox_mode_valid,
579	.get_modes = vbox_get_modes,
580	.best_encoder = vbox_best_single_encoder,
581	};
582
583	static const struct drm_connector_funcs vbox_connector_funcs = {
584	.dpms = drm_helper_connector_dpms,
585	.detect = vbox_connector_detect,
586	.fill_modes = vbox_fill_modes,
587	.destroy = vbox_connector_destroy,
588	};
589
590	static int vbox_connector_init(struct drm_device *dev,
591	struct vbox_crtc *vbox_crtc,
592	struct drm_encoder *encoder)
593	{
594	struct vbox_connector *vbox_connector;
595	struct drm_connector *connector;
596
597	LogFunc(("vboxvideo: %d: dev=%p, encoder=%p\n", __LINE__, dev,
598	encoder));
599	vbox_connector = kzalloc(sizeof(struct vbox_connector), GFP_KERNEL);
600	if (!vbox_connector)
601	return -ENOMEM;
602
603	connector = &vbox_connector->base;
604	vbox_connector->vbox_crtc = vbox_crtc;
605
606	drm_connector_init(dev, connector, &vbox_connector_funcs,
607	DRM_MODE_CONNECTOR_VGA);
608	drm_connector_helper_add(connector, &vbox_connector_helper_funcs);
609
610	connector->interlace_allowed = 0;
611	connector->doublescan_allowed = 0;
612
613	#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0)
614	drm_mode_create_suggested_offset_properties(dev);
615	drm_object_attach_property(&connector->base,
616	dev->mode_config.suggested_x_property, 0);
617	drm_object_attach_property(&connector->base,
618	dev->mode_config.suggested_y_property, 0);
619	#endif
620	#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 17, 0)
621	drm_sysfs_connector_add(connector);
622	#else
623	drm_connector_register(connector);
624	#endif
625
626	drm_mode_connector_attach_encoder(connector, encoder);
627
628	LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, connector));
629	return 0;
630	}
631
632	int vbox_mode_init(struct drm_device *dev)
633	{
634	struct vbox_private *vbox = dev->dev_private;
635	struct drm_encoder *encoder;
636	struct vbox_crtc *vbox_crtc;
637	unsigned i;
638	/* vbox_cursor_init(dev); */
639	LogFunc(("vboxvideo: %d: dev=%p\n", __LINE__, dev));
640	for (i = 0; i < vbox->num_crtcs; ++i)
641	{
642	vbox_crtc = vbox_crtc_init(dev, i);
643	if (!vbox_crtc)
644	return -ENOMEM;
645	encoder = vbox_encoder_init(dev, i);
646	if (!encoder)
647	return -ENOMEM;
648	vbox_connector_init(dev, vbox_crtc, encoder);
649	}
650	return 0;
651	}
652
653	void vbox_mode_fini(struct drm_device *dev)
654	{
655	/* vbox_cursor_fini(dev); */
656	}
657
658
659	/** Copy the ARGB image and generate the mask, which is needed in case the host
660	* does not support ARGB cursors. The mask is a 1BPP bitmap with the bit set
661	* if the corresponding alpha value in the ARGB image is greater than 0xF0. */
662	static void copy_cursor_image(u8 src, u8 dst, int width, int height,
663	size_t mask_size)
664	{
665	unsigned i, j;
666	size_t line_size = (width + 7) / 8;
667
668	memcpy(dst + mask_size, src, width * height * 4);
669	for (i = 0; i < height; ++i)
670	for (j = 0; j < width; ++j)
671	if (((uint32_t )src)[i width + j] > 0xf0000000)
672	dst[i * line_size + j / 8] \|= (0x80 >> (j % 8));
673	}
674
675	static int vbox_cursor_set2(struct drm_crtc crtc, struct drm_file file_priv,
676	uint32_t handle, uint32_t width, uint32_t height,
677	int32_t hot_x, int32_t hot_y)
678	{
679	struct vbox_private *vbox = crtc->dev->dev_private;
680	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
681	struct drm_gem_object *obj;
682	struct vbox_bo *bo;
683	int ret, rc;
684	struct ttm_bo_kmap_obj uobj_map;
685	u8 *src;
686	u8 *dst = NULL;
687	u32 caps = 0;
688	size_t data_size, mask_size;
689	bool src_isiomem;
690
691	/* Re-set this regularly as in 5.0.20 and earlier the information was lost
692	* on save and restore. */
693	VBoxHGSMIUpdateInputMapping(&vbox->submit_info, 0, 0,
694	vbox->input_mapping_width,
695	vbox->input_mapping_height);
696	if (!handle) {
697	bool cursor_enabled = false;
698	struct drm_crtc *crtci;
699
700	/* Hide cursor. */
701	vbox_crtc->cursor_enabled = false;
702	list_for_each_entry(crtci, &vbox->dev->mode_config.crtc_list, head)
703	if (to_vbox_crtc(crtci)->cursor_enabled)
704	cursor_enabled = true;
705	if (!cursor_enabled)
706	VBoxHGSMIUpdatePointerShape(&vbox->submit_info, 0, 0, 0, 0, 0, NULL, 0);
707	return 0;
708	}
709	vbox_crtc->cursor_enabled = true;
710	if ( width > VBOX_MAX_CURSOR_WIDTH \|\| height > VBOX_MAX_CURSOR_HEIGHT
711	\|\| width == 0 \|\| height == 0)
712	return -EINVAL;
713	rc = VBoxQueryConfHGSMI(&vbox->submit_info,
714	VBOX_VBVA_CONF32_CURSOR_CAPABILITIES, &caps);
715	ret = -RTErrConvertToErrno(rc);
716	if (ret)
717	return ret;
718	if ( caps & VMMDEV_MOUSE_HOST_CANNOT_HWPOINTER
719	\|\| !(caps & VMMDEV_MOUSE_HOST_WANTS_ABSOLUTE))
720	return -EINVAL;
721
722	obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
723	if (obj)
724	{
725	bo = gem_to_vbox_bo(obj);
726	ret = vbox_bo_reserve(bo, false);
727	if (!ret)
728	{
729	/* The mask must be calculated based on the alpha channel, one bit
730	* per ARGB word, and must be 32-bit padded. */
731	mask_size = ((width + 7) / 8 * height + 3) & ~3;
732	data_size = width * height * 4 + mask_size;
733	vbox->cursor_hot_x = min((uint32_t)max(hot_x, 0), width);
734	vbox->cursor_hot_y = min((uint32_t)max(hot_y, 0), height);
735	vbox->cursor_width = width;
736	vbox->cursor_height = height;
737	vbox->cursor_data_size = data_size;
738	dst = vbox->cursor_data;
739	ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &uobj_map);
740	if (!ret)
741	{
742	src = ttm_kmap_obj_virtual(&uobj_map, &src_isiomem);
743	if (!src_isiomem)
744	{
745	uint32_t flags = VBOX_MOUSE_POINTER_VISIBLE
746	\| VBOX_MOUSE_POINTER_SHAPE
747	\| VBOX_MOUSE_POINTER_ALPHA;
748	copy_cursor_image(src, dst, width, height, mask_size);
749	rc = VBoxHGSMIUpdatePointerShape(&vbox->submit_info, flags,
750	vbox->cursor_hot_x,
751	vbox->cursor_hot_y,
752	width, height, dst,
753	data_size);
754	ret = -RTErrConvertToErrno(rc);
755	}
756	else
757	DRM_ERROR("src cursor bo should be in main memory\n");
758	ttm_bo_kunmap(&uobj_map);
759	}
760	else
761	vbox->cursor_data_size = 0;
762	vbox_bo_unreserve(bo);
763	}
764	drm_gem_object_unreference_unlocked(obj);
765	}
766	else
767	{
768	DRM_ERROR("Cannot find cursor object %x for crtc\n", handle);
769	ret = -ENOENT;
770	}
771	return ret;
772	}
773
774	static int vbox_cursor_move(struct drm_crtc *crtc,
775	int x, int y)
776	{
777	struct vbox_private *vbox = crtc->dev->dev_private;
778	uint32_t flags = VBOX_MOUSE_POINTER_VISIBLE
779	\| VBOX_MOUSE_POINTER_SHAPE
780	\| VBOX_MOUSE_POINTER_ALPHA;
781	uint32_t host_x, host_y;
782	uint32_t hot_x = 0;
783	uint32_t hot_y = 0;
784	int rc;
785
786	/* We compare these to unsigned later and don't need to handle negative. */
787	if (x + crtc->x < 0 \|\| y + crtc->y < 0 \|\| vbox->cursor_data_size == 0)
788	return 0;
789	rc = VBoxHGSMICursorPosition(&vbox->submit_info, true, x + crtc->x,
790	y + crtc->y, &host_x, &host_y);
791	/* Work around a bug after save and restore in 5.0.20 and earlier. */
792	if (RT_FAILURE(rc) \|\| (host_x == 0 && host_y == 0))
793	return -RTErrConvertToErrno(rc);
794	if (x + crtc->x < host_x)
795	hot_x = min(host_x - x - crtc->x, vbox->cursor_width);
796	if (y + crtc->y < host_y)
797	hot_y = min(host_y - y - crtc->y, vbox->cursor_height);
798	if (hot_x == vbox->cursor_hot_x && hot_y == vbox->cursor_hot_y)
799	return 0;
800	vbox->cursor_hot_x = hot_x;
801	vbox->cursor_hot_y = hot_y;
802	rc = VBoxHGSMIUpdatePointerShape(&vbox->submit_info, flags, hot_x, hot_y,
803	vbox->cursor_width, vbox->cursor_height,
804	vbox->cursor_data,
805	vbox->cursor_data_size);
806	return -RTErrConvertToErrno(rc);
807	}

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source: vbox/trunk/src/VBox/Additions/linux/drm/vbox_mode.c@ 60919

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