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 ret = compositor_.Init();
249 for (auto i = begin_connectors(); i != end_connectors(); ++i) {
250 ret = CreateDisplayPipe(*i);
252 ALOGE("Failed CreateDisplayPipe %d with %d", (*i)->id(), ret);
259 int DrmResources::fd() const {
263 DrmResources::ConnectorIter DrmResources::begin_connectors() const {
264 return connectors_.begin();
267 DrmResources::ConnectorIter DrmResources::end_connectors() const {
268 return connectors_.end();
271 DrmConnector *DrmResources::GetConnectorForDisplay(int display) const {
272 for (ConnectorIter iter = connectors_.begin(); iter != connectors_.end();
274 if ((*iter)->display() == display)
280 DrmCrtc *DrmResources::GetCrtcForDisplay(int display) const {
281 for (std::vector<DrmCrtc *>::const_iterator iter = crtcs_.begin();
282 iter != crtcs_.end(); ++iter) {
283 if ((*iter)->display() == display)
289 DrmResources::PlaneIter DrmResources::begin_planes() const {
290 return planes_.begin();
293 DrmResources::PlaneIter DrmResources::end_planes() const {
294 return planes_.end();
297 DrmPlane *DrmResources::GetPlane(uint32_t id) const {
298 for (std::vector<DrmPlane *>::const_iterator iter = planes_.begin();
299 iter != planes_.end(); ++iter) {
300 if ((*iter)->id() == id)
306 uint32_t DrmResources::next_mode_id() {
310 int DrmResources::TryEncoderForDisplay(int display, DrmEncoder *enc) {
311 /* First try to use the currently-bound crtc */
312 DrmCrtc *crtc = enc->crtc();
313 if (crtc && crtc->can_bind(display)) {
314 crtc->set_display(display);
318 /* Try to find a possible crtc which will work */
319 for (DrmEncoder::CrtcIter iter = enc->begin_possible_crtcs();
320 iter != enc->end_possible_crtcs(); ++iter) {
321 /* We've already tried this earlier */
322 if (*iter == enc->crtc())
325 if ((*iter)->can_bind(display)) {
326 enc->set_crtc(*iter);
327 (*iter)->set_display(display);
332 /* We can't use the encoder, but nothing went wrong, try another one */
336 int DrmResources::CreateDisplayPipe(DrmConnector *connector) {
337 int display = connector->display();
338 /* Try to use current setup first */
339 if (connector->encoder()) {
340 int ret = TryEncoderForDisplay(display, connector->encoder());
343 } else if (ret != -EAGAIN) {
344 ALOGE("Could not set mode %d/%d", display, ret);
349 for (DrmConnector::EncoderIter iter = connector->begin_possible_encoders();
350 iter != connector->end_possible_encoders(); ++iter) {
351 int ret = TryEncoderForDisplay(display, *iter);
353 connector->set_encoder(*iter);
355 } else if (ret != -EAGAIN) {
356 ALOGE("Could not set mode %d/%d", display, ret);
360 ALOGE("Could not find a suitable encoder/crtc for display %d",
361 connector->display());
365 int DrmResources::CreatePropertyBlob(void *data, size_t length,
367 struct drm_mode_create_blob create_blob;
368 memset(&create_blob, 0, sizeof(create_blob));
369 create_blob.length = length;
370 create_blob.data = (__u64)data;
372 int ret = drmIoctl(fd_, DRM_IOCTL_MODE_CREATEPROPBLOB, &create_blob);
374 ALOGE("Failed to create mode property blob %d", ret);
377 *blob_id = create_blob.blob_id;
381 int DrmResources::DestroyPropertyBlob(uint32_t blob_id) {
385 struct drm_mode_destroy_blob destroy_blob;
386 memset(&destroy_blob, 0, sizeof(destroy_blob));
387 destroy_blob.blob_id = (__u32)blob_id;
388 int ret = drmIoctl(fd_, DRM_IOCTL_MODE_DESTROYPROPBLOB, &destroy_blob);
390 ALOGE("Failed to destroy mode property blob %ld/%d", blob_id, ret);
396 int DrmResources::SetDisplayActiveMode(int display, const DrmMode &mode) {
397 std::unique_ptr<DrmComposition> comp(compositor_.CreateComposition(NULL));
399 ALOGE("Failed to create composition for dpms on %d", display);
402 int ret = comp->SetDisplayMode(display, mode);
404 ALOGE("Failed to add mode to composition on %d %d", display, ret);
407 ret = compositor_.QueueComposition(std::move(comp));
409 ALOGE("Failed to queue dpms composition on %d %d", display, ret);
415 int DrmResources::SetDpmsMode(int display, uint64_t mode) {
416 if (mode != DRM_MODE_DPMS_ON && mode != DRM_MODE_DPMS_OFF) {
417 ALOGE("Invalid dpms mode %d", mode);
421 std::unique_ptr<DrmComposition> comp(compositor_.CreateComposition(NULL));
423 ALOGE("Failed to create composition for dpms on %d", display);
426 int ret = comp->SetDpmsMode(display, mode);
428 ALOGE("Failed to add dpms %ld to composition on %d %d", mode, display, ret);
431 ret = compositor_.QueueComposition(std::move(comp));
433 ALOGE("Failed to queue dpms composition on %d %d", display, ret);
439 DrmCompositor *DrmResources::compositor() {
443 int DrmResources::GetProperty(uint32_t obj_id, uint32_t obj_type,
444 const char *prop_name, DrmProperty *property) {
445 drmModeObjectPropertiesPtr props;
447 props = drmModeObjectGetProperties(fd_, obj_id, obj_type);
449 ALOGE("Failed to get properties for %d/%x", obj_id, obj_type);
454 for (int i = 0; !found && (size_t)i < props->count_props; ++i) {
455 drmModePropertyPtr p = drmModeGetProperty(fd_, props->props[i]);
456 if (!strcmp(p->name, prop_name)) {
457 property->Init(p, props->prop_values[i]);
460 drmModeFreeProperty(p);
463 drmModeFreeObjectProperties(props);
464 return found ? 0 : -ENOENT;
467 int DrmResources::GetPlaneProperty(const DrmPlane &plane, const char *prop_name,
468 DrmProperty *property) {
469 return GetProperty(plane.id(), DRM_MODE_OBJECT_PLANE, prop_name, property);
472 int DrmResources::GetCrtcProperty(const DrmCrtc &crtc, const char *prop_name,
473 DrmProperty *property) {
474 return GetProperty(crtc.id(), DRM_MODE_OBJECT_CRTC, prop_name, property);
477 int DrmResources::GetConnectorProperty(const DrmConnector &connector,
478 const char *prop_name,
479 DrmProperty *property) {
480 return GetProperty(connector.id(), DRM_MODE_OBJECT_CONNECTOR, prop_name,