2 * Copyright (C) 2015 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #define LOG_TAG "hwc-drm-resources"
19 #include "drmconnector.h"
21 #include "drmencoder.h"
23 #include "drmresources.h"
29 #include <xf86drmMode.h>
31 #include <cutils/log.h>
32 #include <cutils/properties.h>
36 DrmResources::DrmResources() : fd_(-1), mode_id_(0), compositor_(this) {
39 DrmResources::~DrmResources() {
40 for (std::vector<DrmConnector *>::const_iterator iter = connectors_.begin();
41 iter != connectors_.end(); ++iter)
45 for (std::vector<DrmEncoder *>::const_iterator iter = encoders_.begin();
46 iter != encoders_.end(); ++iter)
50 for (std::vector<DrmCrtc *>::const_iterator iter = crtcs_.begin();
51 iter != crtcs_.end(); ++iter)
55 for (std::vector<DrmPlane *>::const_iterator iter = planes_.begin();
56 iter != planes_.end(); ++iter)
64 int DrmResources::Init() {
65 char path[PROPERTY_VALUE_MAX];
66 property_get("hwc.drm.device", path, "/dev/dri/card0");
68 /* TODO: Use drmOpenControl here instead */
69 fd_ = open(path, O_RDWR);
71 ALOGE("Failed to open dri- %s", strerror(-errno));
75 int ret = drmSetClientCap(fd_, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1);
77 ALOGE("Failed to set universal plane cap %d", ret);
81 ret = drmSetClientCap(fd_, DRM_CLIENT_CAP_ATOMIC, 1);
83 ALOGE("Failed to set atomic cap %d", ret);
87 drmModeResPtr res = drmModeGetResources(fd_);
89 ALOGE("Failed to get DrmResources resources");
93 bool found_primary = false;
96 for (int i = 0; !ret && i < res->count_crtcs; ++i) {
97 drmModeCrtcPtr c = drmModeGetCrtc(fd_, res->crtcs[i]);
99 ALOGE("Failed to get crtc %d", res->crtcs[i]);
104 DrmCrtc *crtc = new DrmCrtc(this, c, i);
109 ALOGE("Failed to allocate crtc %d", res->crtcs[i]);
116 ALOGE("Failed to initialize crtc %d", res->crtcs[i]);
120 crtcs_.push_back(crtc);
123 for (int i = 0; !ret && i < res->count_encoders; ++i) {
124 drmModeEncoderPtr e = drmModeGetEncoder(fd_, res->encoders[i]);
126 ALOGE("Failed to get encoder %d", res->encoders[i]);
131 std::vector<DrmCrtc *> possible_crtcs;
132 DrmCrtc *current_crtc = NULL;
133 for (std::vector<DrmCrtc *>::const_iterator iter = crtcs_.begin();
134 iter != crtcs_.end(); ++iter) {
135 if ((1 << (*iter)->pipe()) & e->possible_crtcs)
136 possible_crtcs.push_back(*iter);
138 if ((*iter)->id() == e->crtc_id)
139 current_crtc = (*iter);
142 DrmEncoder *enc = new DrmEncoder(e, current_crtc, possible_crtcs);
144 drmModeFreeEncoder(e);
147 ALOGE("Failed to allocate enc %d", res->encoders[i]);
151 encoders_.push_back(enc);
154 for (int i = 0; !ret && i < res->count_connectors; ++i) {
155 drmModeConnectorPtr c = drmModeGetConnector(fd_, res->connectors[i]);
157 ALOGE("Failed to get connector %d", res->connectors[i]);
162 std::vector<DrmEncoder *> possible_encoders;
163 DrmEncoder *current_encoder = NULL;
164 for (int j = 0; j < c->count_encoders; ++j) {
165 for (std::vector<DrmEncoder *>::const_iterator iter = encoders_.begin();
166 iter != encoders_.end(); ++iter) {
167 if ((*iter)->id() == c->encoders[j])
168 possible_encoders.push_back((*iter));
169 if ((*iter)->id() == c->encoder_id)
170 current_encoder = *iter;
175 new DrmConnector(this, c, current_encoder, possible_encoders);
177 drmModeFreeConnector(c);
180 ALOGE("Failed to allocate conn %d", res->connectors[i]);
187 ALOGE("Init connector %d failed", res->connectors[i]);
191 connectors_.push_back(conn);
193 if (conn->built_in() && !found_primary) {
194 conn->set_display(0);
195 found_primary = true;
197 conn->set_display(display_num);
202 drmModeFreeResources(res);
204 // Catch-all for the above loops
208 drmModePlaneResPtr plane_res = drmModeGetPlaneResources(fd_);
210 ALOGE("Failed to get plane resources");
214 for (uint32_t i = 0; i < plane_res->count_planes; ++i) {
215 drmModePlanePtr p = drmModeGetPlane(fd_, plane_res->planes[i]);
217 ALOGE("Failed to get plane %d", plane_res->planes[i]);
222 DrmPlane *plane = new DrmPlane(this, p);
227 ALOGE("Allocate plane %d failed", plane_res->planes[i]);
234 ALOGE("Init plane %d failed", plane_res->planes[i]);
239 planes_.push_back(plane);
241 drmModeFreePlaneResources(plane_res);
245 return compositor_.Init();
248 int DrmResources::fd() const {
252 DrmResources::ConnectorIter DrmResources::begin_connectors() const {
253 return connectors_.begin();
256 DrmResources::ConnectorIter DrmResources::end_connectors() const {
257 return connectors_.end();
260 DrmConnector *DrmResources::GetConnectorForDisplay(int display) const {
261 for (ConnectorIter iter = connectors_.begin(); iter != connectors_.end();
263 if ((*iter)->display() == display)
269 DrmCrtc *DrmResources::GetCrtcForDisplay(int display) const {
270 for (std::vector<DrmCrtc *>::const_iterator iter = crtcs_.begin();
271 iter != crtcs_.end(); ++iter) {
272 if ((*iter)->display() == display)
278 DrmResources::PlaneIter DrmResources::begin_planes() const {
279 return planes_.begin();
282 DrmResources::PlaneIter DrmResources::end_planes() const {
283 return planes_.end();
286 DrmPlane *DrmResources::GetPlane(uint32_t id) const {
287 for (std::vector<DrmPlane *>::const_iterator iter = planes_.begin();
288 iter != planes_.end(); ++iter) {
289 if ((*iter)->id() == id)
295 uint32_t DrmResources::next_mode_id() {
299 int DrmResources::TryEncoderForDisplay(int display, DrmEncoder *enc) {
300 /* First try to use the currently-bound crtc */
301 DrmCrtc *crtc = enc->crtc();
302 if (crtc && crtc->can_bind(display)) {
303 crtc->set_display(display);
307 /* Try to find a possible crtc which will work */
308 for (DrmEncoder::CrtcIter iter = enc->begin_possible_crtcs();
309 iter != enc->end_possible_crtcs(); ++iter) {
310 /* We've already tried this earlier */
311 if (*iter == enc->crtc())
314 if ((*iter)->can_bind(display)) {
315 enc->set_crtc(*iter);
316 (*iter)->set_display(display);
321 /* We can't use the encoder, but nothing went wrong, try another one */
325 int DrmResources::CreateDisplayPipe(DrmConnector *connector) {
326 int display = connector->display();
327 /* Try to use current setup first */
328 if (connector->encoder()) {
329 int ret = TryEncoderForDisplay(display, connector->encoder());
332 } else if (ret != -EAGAIN) {
333 ALOGE("Could not set mode %d/%d", display, ret);
338 for (DrmConnector::EncoderIter iter = connector->begin_possible_encoders();
339 iter != connector->end_possible_encoders(); ++iter) {
340 int ret = TryEncoderForDisplay(display, *iter);
342 connector->set_encoder(*iter);
344 } else if (ret != -EAGAIN) {
345 ALOGE("Could not set mode %d/%d", display, ret);
349 ALOGE("Could not find a suitable encoder/crtc for display %d",
350 connector->display());
354 int DrmResources::CreatePropertyBlob(void *data, size_t length,
356 struct drm_mode_create_blob create_blob;
357 memset(&create_blob, 0, sizeof(create_blob));
358 create_blob.length = length;
359 create_blob.data = (__u64)data;
361 int ret = drmIoctl(fd_, DRM_IOCTL_MODE_CREATEPROPBLOB, &create_blob);
363 ALOGE("Failed to create mode property blob %d", ret);
366 *blob_id = create_blob.blob_id;
370 int DrmResources::DestroyPropertyBlob(uint32_t blob_id) {
371 struct drm_mode_destroy_blob destroy_blob;
372 memset(&destroy_blob, 0, sizeof(destroy_blob));
373 destroy_blob.blob_id = (__u32)blob_id;
374 int ret = drmIoctl(fd_, DRM_IOCTL_MODE_DESTROYPROPBLOB, &destroy_blob);
376 ALOGE("Failed to destroy mode property blob %d", ret);
382 int DrmResources::SetDisplayActiveMode(int display, const DrmMode &mode) {
383 DrmConnector *connector = GetConnectorForDisplay(display);
385 ALOGE("Could not locate connector for display %d", display);
389 int ret = CreateDisplayPipe(connector);
391 ALOGE("Failed CreateDisplayPipe with %d", ret);
395 DrmCrtc *crtc = connector->encoder()->crtc();
396 DrmProperty old_mode;
397 ret = GetCrtcProperty(*crtc, crtc->mode_property().name().c_str(), &old_mode);
399 ALOGE("Failed to get old mode property from crtc %d", crtc->id());
403 struct drm_mode_modeinfo drm_mode;
404 memset(&drm_mode, 0, sizeof(drm_mode));
405 mode.ToDrmModeModeInfo(&drm_mode);
409 CreatePropertyBlob(&drm_mode, sizeof(struct drm_mode_modeinfo), &blob_id);
411 ALOGE("Failed to create mode property blob %d", ret);
415 drmModePropertySetPtr pset = drmModePropertySetAlloc();
417 ALOGE("Failed to allocate property set");
418 DestroyPropertyBlob(blob_id);
422 ret = drmModePropertySetAdd(pset, crtc->id(), crtc->mode_property().id(),
424 drmModePropertySetAdd(pset, connector->id(),
425 connector->crtc_id_property().id(), crtc->id());
427 ALOGE("Failed to add blob %d to pset", blob_id);
428 DestroyPropertyBlob(blob_id);
429 drmModePropertySetFree(pset);
434 drmModePropertySetCommit(fd_, DRM_MODE_ATOMIC_ALLOW_MODESET, NULL, pset);
436 drmModePropertySetFree(pset);
439 ALOGE("Failed to commit pset ret=%d\n", ret);
440 DestroyPropertyBlob(blob_id);
444 connector->set_active_mode(mode);
446 uint64_t old_blob_id;
447 ret = old_mode.value(&old_blob_id);
449 ALOGE("Could not get old blob id value %d", ret);
455 ret = DestroyPropertyBlob(old_blob_id);
457 ALOGE("Failed to destroy old mode property blob", old_blob_id);
464 int DrmResources::SetDpmsMode(int display, uint64_t mode) {
465 if (mode != DRM_MODE_DPMS_ON && mode != DRM_MODE_DPMS_OFF) {
466 ALOGE("Invalid dpms mode %d", mode);
470 std::unique_ptr<DrmComposition> comp(compositor_.CreateComposition(NULL));
472 ALOGE("Failed to create composition for dpms on %d", display);
475 int ret = comp->SetDpmsMode(display, mode);
477 ALOGE("Failed to add dpms %ld to composition on %d %d", mode, display, ret);
480 ret = compositor_.QueueComposition(std::move(comp));
482 ALOGE("Failed to queue dpms composition on %d %d", display, ret);
488 DrmCompositor *DrmResources::compositor() {
492 int DrmResources::GetProperty(uint32_t obj_id, uint32_t obj_type,
493 const char *prop_name, DrmProperty *property) {
494 drmModeObjectPropertiesPtr props;
496 props = drmModeObjectGetProperties(fd_, obj_id, obj_type);
498 ALOGE("Failed to get properties for %d/%x", obj_id, obj_type);
503 for (int i = 0; !found && (size_t)i < props->count_props; ++i) {
504 drmModePropertyPtr p = drmModeGetProperty(fd_, props->props[i]);
505 if (!strcmp(p->name, prop_name)) {
506 property->Init(p, props->prop_values[i]);
509 drmModeFreeProperty(p);
512 drmModeFreeObjectProperties(props);
513 return found ? 0 : -ENOENT;
516 int DrmResources::GetPlaneProperty(const DrmPlane &plane, const char *prop_name,
517 DrmProperty *property) {
518 return GetProperty(plane.id(), DRM_MODE_OBJECT_PLANE, prop_name, property);
521 int DrmResources::GetCrtcProperty(const DrmCrtc &crtc, const char *prop_name,
522 DrmProperty *property) {
523 return GetProperty(crtc.id(), DRM_MODE_OBJECT_CRTC, prop_name, property);
526 int DrmResources::GetConnectorProperty(const DrmConnector &connector,
527 const char *prop_name,
528 DrmProperty *property) {
529 return GetProperty(connector.id(), DRM_MODE_OBJECT_CONNECTOR, prop_name,