VirtualBox

source: vbox/trunk/src/VBox/Additions/linux/drm/vbox_mode.c@ 54558

Last change on this file since 54558 was 53793, checked in by vboxsync, 10 years ago

Additions/linux/drm: forgotten to export some files.
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File size: 22.7 KB
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1/** @file $Id: vbox_mode.c 53793 2015-01-13 20:06:32Z vboxsync $
2 *
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-vbox
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 <airlied@redhat.com>
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
57static int vbox_cursor_set2(struct drm_crtc *crtc, struct drm_file *file_priv,
58 uint32_t handle, uint32_t width, uint32_t height,
59 int32_t hot_x, int32_t hot_y);
60static int vbox_cursor_move(struct drm_crtc *crtc, int x, int y);
61
62/** Set a graphics mode. Poke any required values into registers, do an HGSMI
63 * mode set and tell the host we support advanced graphics functions.
64 */
65static void vbox_do_modeset(struct drm_crtc *crtc,
66 const struct drm_display_mode *mode)
67{
68 struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
69 struct vbox_private *vbox;
70 int width, height, cBPP, pitch;
71 unsigned iCrtc;
72 uint16_t fFlags;
73
74 LogFunc(("vboxvideo: %d: vbox_crtc=%p, CRTC_FB(crtc)=%p\n", __LINE__,
75 vbox_crtc, CRTC_FB(crtc)));
76 vbox = crtc->dev->dev_private;
77 width = mode->hdisplay ? mode->hdisplay : 640;
78 height = mode->vdisplay ? mode->vdisplay : 480;
79 iCrtc = vbox_crtc->crtc_id;
80 cBPP = crtc->enabled ? CRTC_FB(crtc)->bits_per_pixel : 32;
81#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 3, 0)
82 pitch = crtc->enabled ? CRTC_FB(crtc)->pitch : width * cBPP / 8;
83#else
84 pitch = crtc->enabled ? CRTC_FB(crtc)->pitches[0] : width * cBPP / 8;
85#endif
86 /* if (vbox_crtc->crtc_id == 0 && crtc->enabled)
87 VBoxVideoSetModeRegisters(width, height, pitch * 8 / cBPP,
88 CRTC_FB(crtc)->bits_per_pixel, 0,
89 crtc->x, crtc->y); */
90 fFlags = VBVA_SCREEN_F_ACTIVE;
91 fFlags |= (crtc->enabled ? 0 : VBVA_SCREEN_F_DISABLED);
92 VBoxHGSMIProcessDisplayInfo(&vbox->Ctx, vbox_crtc->crtc_id,
93 crtc->x, crtc->y,
94 crtc->x * cBPP / 8 + crtc->y * pitch,
95 pitch, width, height,
96 vbox_crtc->fBlanked ? 0 : cBPP, fFlags);
97 LogFunc(("vboxvideo: %d\n", __LINE__));
98}
99
100static int vbox_set_view(struct drm_crtc *crtc)
101{
102 struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
103 struct vbox_private *vbox = crtc->dev->dev_private;
104 void *p;
105
106 LogFunc(("vboxvideo: %d: vbox_crtc=%p\n", __LINE__, vbox_crtc));
107 /* Tell the host about the view. This design originally targeted the
108 * Windows XP driver architecture and assumed that each screen would have
109 * a dedicated frame buffer with the command buffer following it, the whole
110 * being a "view". The host works out which screen a command buffer belongs
111 * to by checking whether it is in the first view, then whether it is in the
112 * second and so on. The first match wins. We cheat around this by making
113 * the first view be the managed memory plus the first command buffer, the
114 * second the same plus the second buffer and so on. */
115 p = VBoxHGSMIBufferAlloc(&vbox->Ctx, sizeof(VBVAINFOVIEW), HGSMI_CH_VBVA,
116 VBVA_INFO_VIEW);
117 if (p)
118 {
119 VBVAINFOVIEW *pInfo = (VBVAINFOVIEW *)p;
120 pInfo->u32ViewIndex = vbox_crtc->crtc_id;
121 pInfo->u32ViewOffset = vbox_crtc->offFB;
122 pInfo->u32ViewSize = vbox->vram_size - vbox_crtc->offFB
123 + vbox_crtc->crtc_id * VBVA_MIN_BUFFER_SIZE;
124 pInfo->u32MaxScreenSize = vbox->vram_size - vbox_crtc->offFB;
125 VBoxHGSMIBufferSubmit(&vbox->Ctx, p);
126 VBoxHGSMIBufferFree(&vbox->Ctx, p);
127 }
128 else
129 return -ENOMEM;
130 LogFunc(("vboxvideo: %d: p=%p\n", __LINE__, p));
131 return 0;
132}
133
134static void vbox_crtc_load_lut(struct drm_crtc *crtc)
135{
136
137}
138
139static void vbox_crtc_dpms(struct drm_crtc *crtc, int mode)
140{
141 struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
142 struct vbox_private *vbox = crtc->dev->dev_private;
143 unsigned long flags;
144
145 LogFunc(("vboxvideo: %d: vbox_crtc=%p, mode=%d\n", __LINE__, vbox_crtc,
146 mode));
147 switch (mode)
148 {
149 case DRM_MODE_DPMS_ON:
150 vbox_crtc->fBlanked = false;
151 break;
152 case DRM_MODE_DPMS_STANDBY:
153 case DRM_MODE_DPMS_SUSPEND:
154 case DRM_MODE_DPMS_OFF:
155 vbox_crtc->fBlanked = true;
156 break;
157 }
158 spin_lock_irqsave(&vbox->dev_lock, flags);
159 vbox_do_modeset(crtc, &crtc->hwmode);
160 spin_unlock_irqrestore(&vbox->dev_lock, flags);
161 LogFunc(("vboxvideo: %d\n", __LINE__));
162}
163
164static bool vbox_crtc_mode_fixup(struct drm_crtc *crtc,
165 const struct drm_display_mode *mode,
166 struct drm_display_mode *adjusted_mode)
167{
168 return true;
169}
170
171static int vbox_crtc_do_set_base(struct drm_crtc *crtc,
172 struct drm_framebuffer *fb,
173 int x, int y, int atomic)
174{
175 struct vbox_private *vbox = crtc->dev->dev_private;
176 struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
177 struct drm_gem_object *obj;
178 struct vbox_framebuffer *vbox_fb;
179 struct vbox_bo *bo;
180 int ret;
181 u64 gpu_addr;
182
183 LogFunc(("vboxvideo: %d: fb=%p, vbox_crtc=%p\n", __LINE__, fb, vbox_crtc));
184
185 vbox_fb = to_vbox_framebuffer(CRTC_FB(crtc));
186 obj = vbox_fb->obj;
187 bo = gem_to_vbox_bo(obj);
188
189 ret = vbox_bo_reserve(bo, false);
190 if (ret)
191 return ret;
192
193 ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
194 if (ret)
195 {
196 vbox_bo_unreserve(bo);
197 return ret;
198 }
199
200 if (&vbox->fbdev->afb == vbox_fb)
201 {
202 /* if pushing console in kmap it */
203 ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
204 if (ret)
205 DRM_ERROR("failed to kmap fbcon\n");
206 }
207 vbox_bo_unreserve(bo);
208
209 /* vbox_set_start_address_crt1(crtc, (u32)gpu_addr); */
210 vbox_crtc->offFB = gpu_addr;
211
212 LogFunc(("vboxvideo: %d: vbox_fb=%p, obj=%p, bo=%p, gpu_addr=%u\n",
213 __LINE__, vbox_fb, obj, bo, (unsigned)gpu_addr));
214 return 0;
215}
216
217static int vbox_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
218 struct drm_framebuffer *old_fb)
219{
220 LogFunc(("vboxvideo: %d\n", __LINE__));
221 return vbox_crtc_do_set_base(crtc, old_fb, x, y, 0);
222}
223
224static int vbox_crtc_mode_set(struct drm_crtc *crtc,
225 struct drm_display_mode *mode,
226 struct drm_display_mode *adjusted_mode,
227 int x, int y,
228 struct drm_framebuffer *old_fb)
229{
230 struct vbox_private *vbox = crtc->dev->dev_private;
231 unsigned long flags;
232 int rc = 0;
233
234 LogFunc(("vboxvideo: %d: vbox=%p\n", __LINE__, vbox));
235 vbox_crtc_mode_set_base(crtc, x, y, old_fb);
236 spin_lock_irqsave(&vbox->dev_lock, flags);
237 rc = vbox_set_view(crtc);
238 if (!rc)
239 vbox_do_modeset(crtc, mode);
240 spin_unlock_irqrestore(&vbox->dev_lock, flags);
241 LogFunc(("vboxvideo: %d\n", __LINE__));
242 return rc;
243}
244
245static void vbox_crtc_disable(struct drm_crtc *crtc)
246{
247
248}
249
250static void vbox_crtc_prepare(struct drm_crtc *crtc)
251{
252
253}
254
255static void vbox_crtc_commit(struct drm_crtc *crtc)
256{
257
258}
259
260
261static const struct drm_crtc_helper_funcs vbox_crtc_helper_funcs =
262{
263 .dpms = vbox_crtc_dpms,
264 .mode_fixup = vbox_crtc_mode_fixup,
265 .mode_set = vbox_crtc_mode_set,
266 /* .mode_set_base = vbox_crtc_mode_set_base, */
267 .disable = vbox_crtc_disable,
268 .load_lut = vbox_crtc_load_lut,
269 .prepare = vbox_crtc_prepare,
270 .commit = vbox_crtc_commit,
271
272};
273
274static void vbox_crtc_reset(struct drm_crtc *crtc)
275{
276
277}
278
279
280static void vbox_crtc_destroy(struct drm_crtc *crtc)
281{
282 drm_crtc_cleanup(crtc);
283 kfree(crtc);
284}
285
286static const struct drm_crtc_funcs vbox_crtc_funcs =
287{
288 .cursor_move = vbox_cursor_move,
289#ifdef DRM_IOCTL_MODE_CURSOR2
290 .cursor_set2 = vbox_cursor_set2,
291#endif
292 .reset = vbox_crtc_reset,
293 .set_config = drm_crtc_helper_set_config,
294 /* .gamma_set = vbox_crtc_gamma_set, */
295 .destroy = vbox_crtc_destroy,
296};
297
298int vbox_crtc_init(struct drm_device *pDev, unsigned i)
299{
300 struct vbox_crtc *pCrtc;
301
302 LogFunc(("vboxvideo: %d\n", __LINE__));
303 pCrtc = kzalloc(sizeof(struct vbox_crtc), GFP_KERNEL);
304 if (!pCrtc)
305 return -ENOMEM;
306 pCrtc->crtc_id = i;
307
308 drm_crtc_init(pDev, &pCrtc->base, &vbox_crtc_funcs);
309 drm_mode_crtc_set_gamma_size(&pCrtc->base, 256);
310 drm_crtc_helper_add(&pCrtc->base, &vbox_crtc_helper_funcs);
311 LogFunc(("vboxvideo: %d: pCrtc=%p\n", __LINE__, pCrtc));
312
313 return 0;
314}
315
316
317static void vbox_encoder_destroy(struct drm_encoder *encoder)
318{
319 LogFunc(("vboxvideo: %d: encoder=%p\n", __LINE__, encoder));
320 drm_encoder_cleanup(encoder);
321 kfree(encoder);
322}
323
324
325static struct drm_encoder *vbox_best_single_encoder(struct drm_connector *connector)
326{
327 int enc_id = connector->encoder_ids[0];
328 struct drm_mode_object *obj;
329 struct drm_encoder *encoder;
330
331 LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, connector));
332 /* pick the encoder ids */
333 if (enc_id)
334 {
335 obj = drm_mode_object_find(connector->dev, enc_id, DRM_MODE_OBJECT_ENCODER);
336 if (!obj)
337 return NULL;
338 encoder = obj_to_encoder(obj);
339 LogFunc(("vboxvideo: %d: encoder=%p\n", __LINE__, encoder));
340 return encoder;
341 }
342 LogFunc(("vboxvideo: %d\n", __LINE__));
343 return NULL;
344}
345
346
347static const struct drm_encoder_funcs vbox_enc_funcs =
348{
349 .destroy = vbox_encoder_destroy,
350};
351
352static void vbox_encoder_dpms(struct drm_encoder *encoder, int mode)
353{
354
355}
356
357static bool vbox_mode_fixup(struct drm_encoder *encoder,
358 const struct drm_display_mode *mode,
359 struct drm_display_mode *adjusted_mode)
360{
361 return true;
362}
363
364static void vbox_encoder_mode_set(struct drm_encoder *encoder,
365 struct drm_display_mode *mode,
366 struct drm_display_mode *adjusted_mode)
367{
368}
369
370static void vbox_encoder_prepare(struct drm_encoder *encoder)
371{
372
373}
374
375static void vbox_encoder_commit(struct drm_encoder *encoder)
376{
377
378}
379
380
381static const struct drm_encoder_helper_funcs vbox_enc_helper_funcs =
382{
383 .dpms = vbox_encoder_dpms,
384 .mode_fixup = vbox_mode_fixup,
385 .prepare = vbox_encoder_prepare,
386 .commit = vbox_encoder_commit,
387 .mode_set = vbox_encoder_mode_set,
388};
389
390struct drm_encoder *vbox_encoder_init(struct drm_device *dev, unsigned i)
391{
392 struct vbox_encoder *vbox_encoder;
393
394 LogFunc(("vboxvideo: %d: dev=%d\n", __LINE__));
395 vbox_encoder = kzalloc(sizeof(struct vbox_encoder), GFP_KERNEL);
396 if (!vbox_encoder)
397 return NULL;
398
399 drm_encoder_init(dev, &vbox_encoder->base, &vbox_enc_funcs,
400 DRM_MODE_ENCODER_DAC);
401 drm_encoder_helper_add(&vbox_encoder->base, &vbox_enc_helper_funcs);
402
403 vbox_encoder->base.possible_crtcs = 1 << i;
404 LogFunc(("vboxvideo: %d: vbox_encoder=%p\n", __LINE__, vbox_encoder));
405 return &vbox_encoder->base;
406}
407
408static int vbox_get_modes(struct drm_connector *pConnector)
409{
410 struct vbox_connector *pVBoxConnector = NULL;
411 struct drm_display_mode *pMode = NULL;
412 unsigned cModes = 0;
413
414 LogFunc(("vboxvideo: %d: pConnector=%p\n", __LINE__, pConnector));
415 pVBoxConnector = to_vbox_connector(pConnector);
416 cModes = drm_add_modes_noedid(pConnector, 1024, 768);
417 if (pVBoxConnector->modeHint.cX && pVBoxConnector->modeHint.cY)
418 {
419 pMode = drm_cvt_mode(pConnector->dev, pVBoxConnector->modeHint.cX,
420 pVBoxConnector->modeHint.cY, 60, false, false,
421 false);
422 if (pMode)
423 {
424 pMode->type |= DRM_MODE_TYPE_PREFERRED;
425 drm_mode_probed_add(pConnector, pMode);
426 ++cModes;
427 }
428 }
429 return cModes;
430}
431
432static int vbox_mode_valid(struct drm_connector *connector,
433 struct drm_display_mode *mode)
434{
435 return MODE_OK;
436}
437
438static void vbox_connector_destroy(struct drm_connector *pConnector)
439{
440 struct vbox_connector *pVBoxConnector = NULL;
441
442 LogFunc(("vboxvideo: %d: connector=%p\n", __LINE__, pConnector));
443 pVBoxConnector = to_vbox_connector(pConnector);
444 device_remove_file(pConnector->dev->dev, &pVBoxConnector->deviceAttribute);
445 drm_sysfs_connector_remove(pConnector);
446 drm_connector_cleanup(pConnector);
447 kfree(pConnector);
448}
449
450static enum drm_connector_status
451vbox_connector_detect(struct drm_connector *connector, bool force)
452{
453 return connector_status_connected;
454}
455
456static const struct drm_connector_helper_funcs vbox_connector_helper_funcs =
457{
458 .mode_valid = vbox_mode_valid,
459 .get_modes = vbox_get_modes,
460 .best_encoder = vbox_best_single_encoder,
461};
462
463static const struct drm_connector_funcs vbox_connector_funcs =
464{
465 .dpms = drm_helper_connector_dpms,
466 .detect = vbox_connector_detect,
467 .fill_modes = drm_helper_probe_single_connector_modes,
468 .destroy = vbox_connector_destroy,
469};
470
471ssize_t vbox_connector_write_sysfs(struct device *pDev,
472 struct device_attribute *pAttr,
473 const char *psz, size_t cch)
474{
475 struct vbox_connector *pVBoxConnector;
476 struct drm_device *pDrmDev;
477 struct vbox_private *pVBox;
478 int cX, cY;
479 char ch;
480
481 LogFunc(("vboxvideo: %d: pDev=%p, pAttr=%p, psz=%s, cch=%llu\n", __LINE__,
482 pDev, pAttr, psz, (unsigned long long)cch));
483 pVBoxConnector = container_of(pAttr, struct vbox_connector,
484 deviceAttribute);
485 pDrmDev = pVBoxConnector->base.dev;
486 pVBox = pDrmDev->dev_private;
487 if (sscanf(psz, "%dx%d\n%c", &cX, &cY, &ch) != 2)
488 return -EINVAL;
489 if ( cX < 64 || cX > VBE_DISPI_MAX_XRES
490 || cY < 64 || cY > VBE_DISPI_MAX_YRES)
491 return -EINVAL;
492 pVBoxConnector->modeHint.cX = (uint16_t)cX;
493 pVBoxConnector->modeHint.cY = (uint16_t)cY;
494 drm_helper_hpd_irq_event(pVBoxConnector->base.dev);
495 if (pVBox->fbdev)
496 drm_fb_helper_hotplug_event(&pVBox->fbdev->helper);
497 LogFunc(("vboxvideo: %d\n", __LINE__));
498 return cch;
499}
500
501int vbox_connector_init(struct drm_device *pDev, unsigned cScreen,
502 struct drm_encoder *pEncoder)
503{
504 struct vbox_connector *pVBoxConnector;
505 struct drm_connector *pConnector;
506 int rc;
507
508 LogFunc(("vboxvideo: %d: pDev=%p, pEncoder=%p\n", __LINE__, pDev,
509 pEncoder));
510 pVBoxConnector = kzalloc(sizeof(struct vbox_connector), GFP_KERNEL);
511 if (!pVBoxConnector)
512 return -ENOMEM;
513
514 pConnector = &pVBoxConnector->base;
515
516 /*
517 * Set up the sysfs file we use for getting video mode hints from user
518 * space.
519 */
520 snprintf(pVBoxConnector->szName, sizeof(pVBoxConnector->szName),
521 "vbox_screen_%u", cScreen);
522 pVBoxConnector->deviceAttribute.attr.name = pVBoxConnector->szName;
523 pVBoxConnector->deviceAttribute.attr.mode = S_IWUSR;
524 pVBoxConnector->deviceAttribute.show = NULL;
525 pVBoxConnector->deviceAttribute.store = vbox_connector_write_sysfs;
526 rc = device_create_file(pDev->dev, &pVBoxConnector->deviceAttribute);
527 if (rc < 0)
528 {
529 kfree(pVBoxConnector);
530 return rc;
531 }
532 drm_connector_init(pDev, pConnector, &vbox_connector_funcs,
533 DRM_MODE_CONNECTOR_VGA);
534 drm_connector_helper_add(pConnector, &vbox_connector_helper_funcs);
535
536 pConnector->interlace_allowed = 0;
537 pConnector->doublescan_allowed = 0;
538
539 drm_sysfs_connector_add(pConnector);
540
541 /* The connector supports hot-plug detection: we promise to call
542 * "drm_helper_hpd_irq_event" when hot-plugging occurs. */
543 pConnector->polled = DRM_CONNECTOR_POLL_HPD;
544
545 drm_mode_connector_attach_encoder(pConnector, pEncoder);
546
547 LogFunc(("vboxvideo: %d: pConnector=%p\n", __LINE__, pConnector));
548 return 0;
549}
550
551#if 0
552/* allocate cursor cache and pin at start of VRAM */
553int vbox_cursor_init(struct drm_device *dev)
554{
555 struct vbox_private *vbox = dev->dev_private;
556 int size;
557 int ret;
558 struct drm_gem_object *obj;
559 struct vbox_bo *bo;
560 uint64_t gpu_addr;
561
562 size = (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE) * AST_DEFAULT_HWC_NUM;
563
564 ret = vbox_gem_create(dev, size, true, &obj);
565 if (ret)
566 return ret;
567 bo = gem_to_vbox_bo(obj);
568 ret = vbox_bo_reserve(bo, false);
569 if (unlikely(ret != 0))
570 goto fail;
571
572 ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
573 vbox_bo_unreserve(bo);
574 if (ret)
575 goto fail;
576
577 /* kmap the object */
578 ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &vbox->cache_kmap);
579 if (ret)
580 goto fail;
581
582 vbox->cursor_cache = obj;
583 vbox->cursor_cache_gpu_addr = gpu_addr;
584 DRM_DEBUG_KMS("pinned cursor cache at %llx\n", vbox->cursor_cache_gpu_addr);
585 return 0;
586fail:
587 return ret;
588}
589
590void vbox_cursor_fini(struct drm_device *dev)
591{
592 struct vbox_private *vbox = dev->dev_private;
593 ttm_bo_kunmap(&vbox->cache_kmap);
594 drm_gem_object_unreference_unlocked(vbox->cursor_cache);
595}
596#endif
597
598int vbox_mode_init(struct drm_device *pDev)
599{
600 struct vbox_private *pVBox = pDev->dev_private;
601 struct drm_encoder *pEncoder;
602 unsigned i;
603 /* vbox_cursor_init(dev); */
604 LogFunc(("vboxvideo: %d: pDev=%p\n", __LINE__, pDev));
605 for (i = 0; i < pVBox->cCrtcs; ++i)
606 {
607 vbox_crtc_init(pDev, i);
608 pEncoder = vbox_encoder_init(pDev, i);
609 if (pEncoder)
610 vbox_connector_init(pDev, i, pEncoder);
611 }
612 return 0;
613}
614
615void vbox_mode_fini(struct drm_device *dev)
616{
617 /* vbox_cursor_fini(dev); */
618}
619
620
621void VBoxRefreshModes(struct drm_device *pDev)
622{
623 struct vbox_private *vbox = pDev->dev_private;
624 struct drm_crtc *crtci;
625 unsigned long flags;
626
627 LogFunc(("vboxvideo: %d\n", __LINE__));
628 spin_lock_irqsave(&vbox->dev_lock, flags);
629 list_for_each_entry(crtci, &pDev->mode_config.crtc_list, head)
630 vbox_do_modeset(crtci, &crtci->hwmode);
631 spin_unlock_irqrestore(&vbox->dev_lock, flags);
632 LogFunc(("vboxvideo: %d\n", __LINE__));
633}
634
635
636/** Copy the ARGB image and generate the mask, which is needed in case the host
637 * does not support ARGB cursors. The mask is a 1BPP bitmap with the bit set
638 * if the corresponding alpha value in the ARGB image is greater than 0xF0. */
639static void copy_cursor_image(u8 *src, u8 *dst, int width, int height,
640 size_t cbMask)
641{
642 unsigned i, j;
643 size_t cbLine = (width + 7) / 8;
644
645 memcpy(dst + cbMask, src, width * height * 4);
646 for (i = 0; i < height; ++i)
647 for (j = 0; j < width; ++j)
648 if (((uint32_t *)src)[i * width + j] > 0xf0000000)
649 dst[i * cbLine + j / 8] |= (0x80 >> (j % 8));
650}
651
652static int vbox_cursor_set2(struct drm_crtc *crtc, struct drm_file *file_priv,
653 uint32_t handle, uint32_t width, uint32_t height,
654 int32_t hot_x, int32_t hot_y)
655{
656 struct vbox_private *vbox = crtc->dev->dev_private;
657 struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
658 struct drm_gem_object *obj;
659 struct vbox_bo *bo;
660 int ret, rc;
661 struct ttm_bo_kmap_obj uobj_map;
662 u8 *src;
663 u8 *dst = NULL;
664 size_t cbData, cbMask;
665 bool src_isiomem;
666
667 if (!handle) {
668 /* Hide cursor. */
669 VBoxHGSMIUpdatePointerShape(&vbox->Ctx, 0, 0, 0, 0, 0, NULL, 0);
670 return 0;
671 }
672 if ( width > VBOX_MAX_CURSOR_WIDTH || height > VBOX_MAX_CURSOR_HEIGHT
673 || width == 0 || hot_x > width || height == 0 || hot_y > height)
674 return -EINVAL;
675
676 obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
677 if (obj)
678 {
679 bo = gem_to_vbox_bo(obj);
680 ret = vbox_bo_reserve(bo, false);
681 if (!ret)
682 {
683 /* The mask must be calculated based on the alpha channel, one bit
684 * per ARGB word, and must be 32-bit padded. */
685 cbMask = ((width + 7) / 8 * height + 3) & ~3;
686 cbData = width * height * 4 + cbMask;
687 dst = kmalloc(cbData, GFP_KERNEL);
688 if (dst)
689 {
690 ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &uobj_map);
691 if (!ret)
692 {
693 src = ttm_kmap_obj_virtual(&uobj_map, &src_isiomem);
694 if (!src_isiomem)
695 {
696 uint32_t fFlags = VBOX_MOUSE_POINTER_VISIBLE
697 | VBOX_MOUSE_POINTER_SHAPE
698 | VBOX_MOUSE_POINTER_ALPHA;
699 copy_cursor_image(src, dst, width, height, cbMask);
700 rc = VBoxHGSMIUpdatePointerShape(&vbox->Ctx, fFlags,
701 hot_x, hot_y, width,
702 height, dst, cbData);
703 ret = RTErrConvertToErrno(rc);
704 }
705 else
706 DRM_ERROR("src cursor bo should be in main memory\n");
707 ttm_bo_kunmap(&uobj_map);
708 }
709 kfree(dst);
710 }
711 vbox_bo_unreserve(bo);
712 }
713 drm_gem_object_unreference_unlocked(obj);
714 }
715 else
716 {
717 DRM_ERROR("Cannot find cursor object %x for crtc\n", handle);
718 ret = -ENOENT;
719 }
720 return ret;
721}
722
723static int vbox_cursor_move(struct drm_crtc *crtc,
724 int x, int y)
725{
726 return 0;
727}
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