#define LOG_TAG "hwcomposer-drm"
-#include <fcntl.h>
+#include "drm_hwcomposer.h"
+
#include <errno.h>
+#include <fcntl.h>
#include <list>
+#include <pthread.h>
#include <sys/param.h>
#include <sys/resource.h>
-#include <pthread.h>
-
-#include <cutils/log.h>
-
#include <xf86drm.h>
#include <xf86drmMode.h>
+#include <cutils/log.h>
+#include <cutils/properties.h>
#include <hardware/hardware.h>
#include <hardware/hwcomposer.h>
-
-#include <cutils/properties.h>
-#include <sync/sync.h>
#include <sw_sync.h>
-
-#include "drm_hwcomposer.h"
+#include <sync/sync.h>
#define ARRAY_SIZE(arr) (int)(sizeof(arr) / sizeof((arr)[0]))
#define UM_PER_INCH 25400
static const uint32_t panel_types[] = {
- DRM_MODE_CONNECTOR_LVDS,
- DRM_MODE_CONNECTOR_eDP,
- DRM_MODE_CONNECTOR_DSI,
+ DRM_MODE_CONNECTOR_LVDS, DRM_MODE_CONNECTOR_eDP, DRM_MODE_CONNECTOR_DSI,
};
struct hwc_worker {
- pthread_t thread;
- pthread_mutex_t lock;
- pthread_cond_t cond;
- bool exit;
+ pthread_t thread;
+ pthread_mutex_t lock;
+ pthread_cond_t cond;
+ bool exit;
};
struct hwc_drm_display {
- struct hwc_context_t *ctx;
- int display;
+ struct hwc_context_t *ctx;
+ int display;
- uint32_t connector_id;
+ uint32_t connector_id;
- drmModeModeInfoPtr configs;
- uint32_t num_configs;
+ drmModeModeInfoPtr configs;
+ uint32_t num_configs;
- drmModeModeInfo active_mode;
- uint32_t active_crtc;
- int active_pipe;
- bool initial_modeset_required;
+ drmModeModeInfo active_mode;
+ uint32_t active_crtc;
+ int active_pipe;
+ bool initial_modeset_required;
- struct hwc_worker set_worker;
+ struct hwc_worker set_worker;
- std::list<struct hwc_drm_bo> buf_queue;
- struct hwc_drm_bo front;
- pthread_mutex_t flip_lock;
- pthread_cond_t flip_cond;
+ std::list<struct hwc_drm_bo> buf_queue;
+ struct hwc_drm_bo front;
+ pthread_mutex_t flip_lock;
+ pthread_cond_t flip_cond;
- int timeline_fd;
- unsigned timeline_next;
+ int timeline_fd;
+ unsigned timeline_next;
- bool enable_vsync_events;
- unsigned int vsync_sequence;
+ bool enable_vsync_events;
+ unsigned int vsync_sequence;
};
struct hwc_context_t {
- hwc_composer_device_1_t device;
+ hwc_composer_device_1_t device;
- int fd;
+ int fd;
- hwc_procs_t const *procs;
- struct hwc_import_context *import_ctx;
+ hwc_procs_t const *procs;
+ struct hwc_import_context *import_ctx;
- struct hwc_drm_display displays[MAX_NUM_DISPLAYS];
- int num_displays;
+ struct hwc_drm_display displays[MAX_NUM_DISPLAYS];
+ int num_displays;
- struct hwc_worker event_worker;
+ struct hwc_worker event_worker;
};
static int hwc_get_drm_display(struct hwc_context_t *ctx, int display,
- struct hwc_drm_display **hd)
-{
- if (display >= MAX_NUM_DISPLAYS) {
- ALOGE("Requested display is out-of-bounds %d %d", display,
- MAX_NUM_DISPLAYS);
- return -EINVAL;
- }
- *hd = &ctx->displays[display];
- return 0;
+ struct hwc_drm_display **hd) {
+ if (display >= MAX_NUM_DISPLAYS) {
+ ALOGE("Requested display is out-of-bounds %d %d", display,
+ MAX_NUM_DISPLAYS);
+ return -EINVAL;
+ }
+ *hd = &ctx->displays[display];
+ return 0;
}
-static int hwc_prepare_layer(hwc_layer_1_t *layer)
-{
- /* TODO: We can't handle background right now, defer to sufaceFlinger */
- if (layer->compositionType == HWC_BACKGROUND) {
- layer->compositionType = HWC_FRAMEBUFFER;
- ALOGV("Can't handle background layers yet");
+static int hwc_prepare_layer(hwc_layer_1_t *layer) {
+ /* TODO: We can't handle background right now, defer to sufaceFlinger */
+ if (layer->compositionType == HWC_BACKGROUND) {
+ layer->compositionType = HWC_FRAMEBUFFER;
+ ALOGV("Can't handle background layers yet");
- /* TODO: Support sideband compositions */
- } else if (layer->compositionType == HWC_SIDEBAND) {
- layer->compositionType = HWC_FRAMEBUFFER;
- ALOGV("Can't handle sideband content yet");
- }
+ /* TODO: Support sideband compositions */
+ } else if (layer->compositionType == HWC_SIDEBAND) {
+ layer->compositionType = HWC_FRAMEBUFFER;
+ ALOGV("Can't handle sideband content yet");
+ }
- layer->hints = 0;
+ layer->hints = 0;
- /* TODO: Handle cursor by setting compositionType=HWC_CURSOR_OVERLAY */
- if (layer->flags & HWC_IS_CURSOR_LAYER) {
- ALOGV("Can't handle async cursors yet");
- }
+ /* TODO: Handle cursor by setting compositionType=HWC_CURSOR_OVERLAY */
+ if (layer->flags & HWC_IS_CURSOR_LAYER) {
+ ALOGV("Can't handle async cursors yet");
+ }
- /* TODO: Handle transformations */
- if (layer->transform) {
- ALOGV("Can't handle transformations yet");
- }
+ /* TODO: Handle transformations */
+ if (layer->transform) {
+ ALOGV("Can't handle transformations yet");
+ }
- /* TODO: Handle blending & plane alpha*/
- if (layer->blending == HWC_BLENDING_PREMULT ||
- layer->blending == HWC_BLENDING_COVERAGE) {
- ALOGV("Can't handle blending yet");
- }
+ /* TODO: Handle blending & plane alpha*/
+ if (layer->blending == HWC_BLENDING_PREMULT ||
+ layer->blending == HWC_BLENDING_COVERAGE) {
+ ALOGV("Can't handle blending yet");
+ }
- /* TODO: Handle cropping & scaling */
+ /* TODO: Handle cropping & scaling */
- return 0;
+ return 0;
}
-static int hwc_prepare(hwc_composer_device_1_t */* dev */, size_t num_displays,
- hwc_display_contents_1_t** display_contents)
-{
- int ret = 0, i, j;
-
- /* TODO: Check flags for HWC_GEOMETRY_CHANGED */
+static int hwc_prepare(hwc_composer_device_1_t * /* dev */, size_t num_displays,
+ hwc_display_contents_1_t **display_contents) {
+ /* TODO: Check flags for HWC_GEOMETRY_CHANGED */
- for (i = 0; i < (int)num_displays && i < MAX_NUM_DISPLAYS; i++) {
+ for (int i = 0; i < (int)num_displays && i < MAX_NUM_DISPLAYS; ++i) {
+ if (!display_contents[i])
+ continue;
- if (!display_contents[i])
- continue;
+ for (int j = 0; j < (int)display_contents[i]->numHwLayers; ++j) {
+ int ret = hwc_prepare_layer(&display_contents[i]->hwLayers[j]);
+ if (ret) {
+ ALOGE("Failed to prepare layer %d:%d", j, i);
+ return ret;
+ }
+ }
+ }
- for (j = 0; j < (int)display_contents[i]->numHwLayers; j++) {
- ret = hwc_prepare_layer(
- &display_contents[i]->hwLayers[j]);
- if (ret) {
- ALOGE("Failed to prepare layer %d:%d", j, i);
- return ret;
- }
- }
- }
-
- return ret;
+ return 0;
}
-static int hwc_queue_vblank_event(struct hwc_drm_display *hd)
-{
- drmVBlank vblank;
- int ret;
- uint32_t high_crtc;
- int64_t timestamp;
-
- if (hd->active_pipe == -1) {
- ALOGE("Active pipe is -1 disp=%d", hd->display);
- return -EINVAL;
- }
-
- memset(&vblank, 0, sizeof(vblank));
-
- high_crtc = (hd->active_pipe << DRM_VBLANK_HIGH_CRTC_SHIFT);
- vblank.request.type = (drmVBlankSeqType)(DRM_VBLANK_ABSOLUTE |
- DRM_VBLANK_NEXTONMISS | DRM_VBLANK_EVENT |
- (high_crtc & DRM_VBLANK_HIGH_CRTC_MASK));
- vblank.request.signal = (unsigned long)hd;
- vblank.request.sequence = hd->vsync_sequence + 1;
-
- ret = drmWaitVBlank(hd->ctx->fd, &vblank);
- if (ret) {
- ALOGE("Failed to wait for vblank %d", ret);
- return ret;
- }
-
- return 0;
+static int hwc_queue_vblank_event(struct hwc_drm_display *hd) {
+ if (hd->active_pipe == -1) {
+ ALOGE("Active pipe is -1 disp=%d", hd->display);
+ return -EINVAL;
+ }
+
+ drmVBlank vblank;
+ memset(&vblank, 0, sizeof(vblank));
+
+ uint32_t high_crtc = (hd->active_pipe << DRM_VBLANK_HIGH_CRTC_SHIFT);
+ vblank.request.type = (drmVBlankSeqType)(
+ DRM_VBLANK_ABSOLUTE | DRM_VBLANK_NEXTONMISS | DRM_VBLANK_EVENT |
+ (high_crtc & DRM_VBLANK_HIGH_CRTC_MASK));
+ vblank.request.signal = (unsigned long)hd;
+ vblank.request.sequence = hd->vsync_sequence + 1;
+
+ int ret = drmWaitVBlank(hd->ctx->fd, &vblank);
+ if (ret) {
+ ALOGE("Failed to wait for vblank %d", ret);
+ return ret;
+ }
+
+ return 0;
}
static void hwc_vblank_event_handler(int /* fd */, unsigned int sequence,
- unsigned int tv_sec, unsigned int tv_usec,
- void *user_data)
-{
- struct hwc_drm_display *hd = (struct hwc_drm_display *)user_data;
- int64_t timestamp;
- int ret;
-
- if (!hd->enable_vsync_events || !hd->ctx->procs->vsync)
- return;
-
- /*
- * Discard duplicate vsync (can happen when enabling vsync events while
- * already processing vsyncs).
- */
- if (sequence <= hd->vsync_sequence)
- return;
-
- hd->vsync_sequence = sequence;
- ret = hwc_queue_vblank_event(hd);
- if (ret)
- ALOGE("Failed to queue vblank event ret=%d", ret);
-
- timestamp = (int64_t)tv_sec * 1000 * 1000 * 1000 +
- (int64_t)tv_usec * 1000;
- hd->ctx->procs->vsync(hd->ctx->procs, hd->display, timestamp);
+ unsigned int tv_sec, unsigned int tv_usec,
+ void *user_data) {
+ struct hwc_drm_display *hd = (struct hwc_drm_display *)user_data;
+
+ if (!hd->enable_vsync_events || !hd->ctx->procs->vsync)
+ return;
+
+ /*
+ * Discard duplicate vsync (can happen when enabling vsync events while
+ * already processing vsyncs).
+ */
+ if (sequence <= hd->vsync_sequence)
+ return;
+
+ hd->vsync_sequence = sequence;
+ int ret = hwc_queue_vblank_event(hd);
+ if (ret)
+ ALOGE("Failed to queue vblank event ret=%d", ret);
+
+ int64_t timestamp =
+ (int64_t)tv_sec * 1000 * 1000 * 1000 + (int64_t)tv_usec * 1000;
+ hd->ctx->procs->vsync(hd->ctx->procs, hd->display, timestamp);
}
static void hwc_flip_event_handler(int /* fd */, unsigned int /* sequence */,
- unsigned int /* tv_sec */, unsigned int /* tv_usec */,
- void *user_data)
-{
- struct hwc_drm_display *hd = (struct hwc_drm_display *)user_data;
- int ret;
- int64_t timestamp;
-
- ret = pthread_mutex_lock(&hd->flip_lock);
- if (ret) {
- ALOGE("Failed to lock flip lock ret=%d", ret);
- return;
- }
-
- ret = pthread_cond_signal(&hd->flip_cond);
- if (ret) {
- ALOGE("Failed to signal flip condition ret=%d", ret);
- goto out;
- }
-
-out:
- ret = pthread_mutex_unlock(&hd->flip_lock);
- if (ret) {
- ALOGE("Failed to unlock flip lock ret=%d", ret);
- return;
- }
+ unsigned int /* tv_sec */,
+ unsigned int /* tv_usec */,
+ void *user_data) {
+ struct hwc_drm_display *hd = (struct hwc_drm_display *)user_data;
+
+ int ret = pthread_mutex_lock(&hd->flip_lock);
+ if (ret) {
+ ALOGE("Failed to lock flip lock ret=%d", ret);
+ return;
+ }
+
+ ret = pthread_cond_signal(&hd->flip_cond);
+ if (ret)
+ ALOGE("Failed to signal flip condition ret=%d", ret);
+
+ ret = pthread_mutex_unlock(&hd->flip_lock);
+ if (ret) {
+ ALOGE("Failed to unlock flip lock ret=%d", ret);
+ return;
+ }
}
-static void *hwc_event_worker(void *arg)
-{
- struct hwc_context_t *ctx = (struct hwc_context_t *)arg;
- int ret;
- fd_set fds;
- drmEventContext event_context;
-
- setpriority(PRIO_PROCESS, 0, HAL_PRIORITY_URGENT_DISPLAY);
+static void *hwc_event_worker(void *arg) {
+ setpriority(PRIO_PROCESS, 0, HAL_PRIORITY_URGENT_DISPLAY);
- do {
- FD_ZERO(&fds);
- FD_SET(ctx->fd, &fds);
+ struct hwc_context_t *ctx = (struct hwc_context_t *)arg;
+ do {
+ fd_set fds;
+ FD_ZERO(&fds);
+ FD_SET(ctx->fd, &fds);
- event_context.version = DRM_EVENT_CONTEXT_VERSION;
- event_context.page_flip_handler = hwc_flip_event_handler;
- event_context.vblank_handler = hwc_vblank_event_handler;
+ drmEventContext event_context;
+ event_context.version = DRM_EVENT_CONTEXT_VERSION;
+ event_context.page_flip_handler = hwc_flip_event_handler;
+ event_context.vblank_handler = hwc_vblank_event_handler;
- do {
- ret = select(ctx->fd + 1, &fds, NULL, NULL, NULL);
- } while (ret == -1 && errno == EINTR);
+ int ret;
+ do {
+ ret = select(ctx->fd + 1, &fds, NULL, NULL, NULL);
+ } while (ret == -1 && errno == EINTR);
- if (ret != 1) {
- ALOGE("Failed waiting for drm event\n");
- continue;
- }
+ if (ret != 1) {
+ ALOGE("Failed waiting for drm event\n");
+ continue;
+ }
- drmHandleEvent(ctx->fd, &event_context);
- } while (true);
+ drmHandleEvent(ctx->fd, &event_context);
+ } while (true);
- return NULL;
+ return NULL;
}
-static bool hwc_mode_is_equal(drmModeModeInfoPtr a, drmModeModeInfoPtr b)
-{
- return a->clock == b->clock &&
- a->hdisplay == b->hdisplay &&
- a->hsync_start == b->hsync_start &&
- a->hsync_end == b->hsync_end &&
- a->htotal == b->htotal &&
- a->hskew == b->hskew &&
- a->vdisplay == b->vdisplay &&
- a->vsync_start == b->vsync_start &&
- a->vsync_end == b->vsync_end &&
- a->vtotal == b->vtotal &&
- a->vscan == b->vscan &&
- a->vrefresh == b->vrefresh &&
- a->flags == b->flags &&
- a->type == b->type &&
- !strcmp(a->name, b->name);
+static bool hwc_mode_is_equal(drmModeModeInfoPtr a, drmModeModeInfoPtr b) {
+ return a->clock == b->clock && a->hdisplay == b->hdisplay &&
+ a->hsync_start == b->hsync_start && a->hsync_end == b->hsync_end &&
+ a->htotal == b->htotal && a->hskew == b->hskew &&
+ a->vdisplay == b->vdisplay && a->vsync_start == b->vsync_start &&
+ a->vsync_end == b->vsync_end && a->vtotal == b->vtotal &&
+ a->vscan == b->vscan && a->vrefresh == b->vrefresh &&
+ a->flags == b->flags && a->type == b->type &&
+ !strcmp(a->name, b->name);
}
static int hwc_modeset_required(struct hwc_drm_display *hd,
- bool *modeset_required)
-{
- drmModeCrtcPtr crtc;
- drmModeModeInfoPtr m;
-
- if (hd->initial_modeset_required) {
- *modeset_required = true;
- hd->initial_modeset_required = false;
- return 0;
- }
-
- crtc = drmModeGetCrtc(hd->ctx->fd, hd->active_crtc);
- if (!crtc) {
- ALOGE("Failed to get crtc for display %d", hd->display);
- return -ENODEV;
- }
-
- m = &hd->active_mode;
-
- /* Do a modeset if we haven't done one, or the mode has changed */
- if (!crtc->mode_valid || !hwc_mode_is_equal(m, &crtc->mode))
- *modeset_required = true;
- else
- *modeset_required = false;
-
- drmModeFreeCrtc(crtc);
-
- return 0;
+ bool *modeset_required) {
+ if (hd->initial_modeset_required) {
+ *modeset_required = true;
+ hd->initial_modeset_required = false;
+ return 0;
+ }
+
+ drmModeCrtcPtr crtc;
+ crtc = drmModeGetCrtc(hd->ctx->fd, hd->active_crtc);
+ if (!crtc) {
+ ALOGE("Failed to get crtc for display %d", hd->display);
+ return -ENODEV;
+ }
+
+ drmModeModeInfoPtr m;
+ m = &hd->active_mode;
+
+ /* Do a modeset if we haven't done one, or the mode has changed */
+ if (!crtc->mode_valid || !hwc_mode_is_equal(m, &crtc->mode))
+ *modeset_required = true;
+ else
+ *modeset_required = false;
+
+ drmModeFreeCrtc(crtc);
+
+ return 0;
}
-static int hwc_flip(struct hwc_drm_display *hd, struct hwc_drm_bo *buf)
-{
- int ret;
- bool modeset_required;
-
- ret = hwc_modeset_required(hd, &modeset_required);
- if (ret) {
- ALOGE("Failed to determine if modeset is required %d", ret);
- return ret;
- }
- if (modeset_required) {
- ret = drmModeSetCrtc(hd->ctx->fd, hd->active_crtc, buf->fb_id,
- 0, 0, &hd->connector_id, 1,
- &hd->active_mode);
- if (ret) {
- ALOGE("Modeset failed for crtc %d",
- hd->active_crtc);
- return ret;
- }
- return 0;
- }
-
- ret = drmModePageFlip(hd->ctx->fd, hd->active_crtc, buf->fb_id,
- DRM_MODE_PAGE_FLIP_EVENT, hd);
- if (ret) {
- ALOGE("Failed to flip buffer for crtc %d",
- hd->active_crtc);
- return ret;
- }
-
- ret = pthread_cond_wait(&hd->flip_cond, &hd->flip_lock);
- if (ret) {
- ALOGE("Failed to wait on condition %d", ret);
- return ret;
- }
-
- return 0;
+static int hwc_flip(struct hwc_drm_display *hd, struct hwc_drm_bo *buf) {
+ bool modeset_required;
+ int ret = hwc_modeset_required(hd, &modeset_required);
+ if (ret) {
+ ALOGE("Failed to determine if modeset is required %d", ret);
+ return ret;
+ }
+ if (modeset_required) {
+ ret = drmModeSetCrtc(hd->ctx->fd, hd->active_crtc, buf->fb_id, 0, 0,
+ &hd->connector_id, 1, &hd->active_mode);
+ if (ret) {
+ ALOGE("Modeset failed for crtc %d", hd->active_crtc);
+ return ret;
+ }
+ return 0;
+ }
+
+ ret = drmModePageFlip(hd->ctx->fd, hd->active_crtc, buf->fb_id,
+ DRM_MODE_PAGE_FLIP_EVENT, hd);
+ if (ret) {
+ ALOGE("Failed to flip buffer for crtc %d", hd->active_crtc);
+ return ret;
+ }
+
+ ret = pthread_cond_wait(&hd->flip_cond, &hd->flip_lock);
+ if (ret) {
+ ALOGE("Failed to wait on condition %d", ret);
+ return ret;
+ }
+
+ return 0;
}
static int hwc_wait_and_set(struct hwc_drm_display *hd,
- struct hwc_drm_bo *buf)
-{
- struct drm_gem_close args;
- int ret, i;
-
- if (buf->acquire_fence_fd >= 0) {
- ret = sync_wait(buf->acquire_fence_fd, -1);
- close(buf->acquire_fence_fd);
- buf->acquire_fence_fd = -1;
- if (ret) {
- ALOGE("Failed to wait for acquire %d", ret);
- return ret;
- }
- }
-
- ret = hwc_flip(hd, buf);
- if (ret) {
- ALOGE("Failed to perform flip\n");
- return ret;
- }
-
- if (hwc_import_bo_release(hd->ctx->fd, hd->ctx->import_ctx, &hd->front)) {
- memset(&args, 0, sizeof(args));
- for (i = 0; i < ARRAY_SIZE(hd->front.gem_handles); i++) {
- if (!hd->front.gem_handles[i])
- continue;
-
- /* check for duplicate handle in buf_queue */
- bool found;
-
- ret = pthread_mutex_lock(&hd->set_worker.lock);
- if (ret) {
- ALOGE("Failed to lock set lock in wait_and_set() %d", ret);
- continue;
- }
-
- found = false;
- for (std::list<struct hwc_drm_bo>::iterator bi = hd->buf_queue.begin();
- bi != hd->buf_queue.end();
- ++bi)
- for (int j = 0; j < ARRAY_SIZE(bi->gem_handles); j++)
- if (hd->front.gem_handles[i] == bi->gem_handles[j] )
- found = true;
-
- for (int j = 0; j < ARRAY_SIZE(buf->gem_handles); j++)
- if (hd->front.gem_handles[i] == buf->gem_handles[j])
- found = true;
-
- if (!found) {
- args.handle = hd->front.gem_handles[i];
- drmIoctl(hd->ctx->fd, DRM_IOCTL_GEM_CLOSE, &args);
- }
- if (pthread_mutex_unlock(&hd->set_worker.lock))
- ALOGE("Failed to unlock set lock in wait_and_set() %d", ret);
- }
- }
-
- hd->front = *buf;
-
- return ret;
+ struct hwc_drm_bo *buf) {
+ int ret;
+ if (buf->acquire_fence_fd >= 0) {
+ ret = sync_wait(buf->acquire_fence_fd, -1);
+ close(buf->acquire_fence_fd);
+ buf->acquire_fence_fd = -1;
+ if (ret) {
+ ALOGE("Failed to wait for acquire %d", ret);
+ return ret;
+ }
+ }
+
+ ret = hwc_flip(hd, buf);
+ if (ret) {
+ ALOGE("Failed to perform flip\n");
+ return ret;
+ }
+
+ if (hwc_import_bo_release(hd->ctx->fd, hd->ctx->import_ctx, &hd->front)) {
+ struct drm_gem_close args;
+ memset(&args, 0, sizeof(args));
+ for (int i = 0; i < ARRAY_SIZE(hd->front.gem_handles); ++i) {
+ if (!hd->front.gem_handles[i])
+ continue;
+
+ ret = pthread_mutex_lock(&hd->set_worker.lock);
+ if (ret) {
+ ALOGE("Failed to lock set lock in wait_and_set() %d", ret);
+ continue;
+ }
+
+ /* check for duplicate handle in buf_queue */
+ bool found = false;
+ for (std::list<struct hwc_drm_bo>::iterator bi = hd->buf_queue.begin();
+ bi != hd->buf_queue.end(); ++bi)
+ for (int j = 0; j < ARRAY_SIZE(bi->gem_handles); ++j)
+ if (hd->front.gem_handles[i] == bi->gem_handles[j])
+ found = true;
+
+ for (int j = 0; j < ARRAY_SIZE(buf->gem_handles); ++j)
+ if (hd->front.gem_handles[i] == buf->gem_handles[j])
+ found = true;
+
+ if (!found) {
+ args.handle = hd->front.gem_handles[i];
+ drmIoctl(hd->ctx->fd, DRM_IOCTL_GEM_CLOSE, &args);
+ }
+ if (pthread_mutex_unlock(&hd->set_worker.lock))
+ ALOGE("Failed to unlock set lock in wait_and_set() %d", ret);
+ }
+ }
+
+ hd->front = *buf;
+
+ return ret;
+}
+
+static void *hwc_set_worker(void *arg) {
+ setpriority(PRIO_PROCESS, 0, HAL_PRIORITY_URGENT_DISPLAY);
+
+ struct hwc_drm_display *hd = (struct hwc_drm_display *)arg;
+ int ret = pthread_mutex_lock(&hd->flip_lock);
+ if (ret) {
+ ALOGE("Failed to lock flip lock ret=%d", ret);
+ return NULL;
+ }
+
+ do {
+ ret = pthread_mutex_lock(&hd->set_worker.lock);
+ if (ret) {
+ ALOGE("Failed to lock set lock %d", ret);
+ return NULL;
+ }
+
+ if (hd->set_worker.exit)
+ break;
+
+ if (hd->buf_queue.empty()) {
+ ret = pthread_cond_wait(&hd->set_worker.cond, &hd->set_worker.lock);
+ if (ret) {
+ ALOGE("Failed to wait on condition %d", ret);
+ break;
+ }
+ }
+
+ struct hwc_drm_bo buf;
+ buf = hd->buf_queue.front();
+ hd->buf_queue.pop_front();
+
+ ret = pthread_mutex_unlock(&hd->set_worker.lock);
+ if (ret) {
+ ALOGE("Failed to unlock set lock %d", ret);
+ return NULL;
+ }
+
+ ret = hwc_wait_and_set(hd, &buf);
+ if (ret)
+ ALOGE("Failed to wait and set %d", ret);
+
+ ret = sw_sync_timeline_inc(hd->timeline_fd, 1);
+ if (ret)
+ ALOGE("Failed to increment sync timeline %d", ret);
+ } while (true);
+
+ ret = pthread_mutex_unlock(&hd->set_worker.lock);
+ if (ret)
+ ALOGE("Failed to unlock set lock while exiting %d", ret);
+
+ ret = pthread_mutex_unlock(&hd->flip_lock);
+ if (ret)
+ ALOGE("Failed to unlock flip lock ret=%d", ret);
+
+ return NULL;
}
-static void *hwc_set_worker(void *arg)
-{
- struct hwc_drm_display *hd = (struct hwc_drm_display *)arg;
- int ret;
-
- setpriority(PRIO_PROCESS, 0, HAL_PRIORITY_URGENT_DISPLAY);
-
- ret = pthread_mutex_lock(&hd->flip_lock);
- if (ret) {
- ALOGE("Failed to lock flip lock ret=%d", ret);
- return NULL;
- }
-
- do {
- struct hwc_drm_bo buf;
-
- ret = pthread_mutex_lock(&hd->set_worker.lock);
- if (ret) {
- ALOGE("Failed to lock set lock %d", ret);
- return NULL;
- }
-
- if (hd->set_worker.exit)
- goto out;
-
- if (hd->buf_queue.empty()) {
- ret = pthread_cond_wait(&hd->set_worker.cond,
- &hd->set_worker.lock);
- if (ret) {
- ALOGE("Failed to wait on condition %d", ret);
- goto out;
- }
- }
-
- buf = hd->buf_queue.front();
- hd->buf_queue.pop_front();
-
- ret = pthread_mutex_unlock(&hd->set_worker.lock);
- if (ret) {
- ALOGE("Failed to unlock set lock %d", ret);
- return NULL;
- }
-
- ret = hwc_wait_and_set(hd, &buf);
- if (ret)
- ALOGE("Failed to wait and set %d", ret);
-
- ret = sw_sync_timeline_inc(hd->timeline_fd, 1);
- if (ret)
- ALOGE("Failed to increment sync timeline %d", ret);
- } while (true);
-
-out:
- ret = pthread_mutex_unlock(&hd->set_worker.lock);
- if (ret)
- ALOGE("Failed to unlock set lock while exiting %d", ret);
-
- ret = pthread_mutex_unlock(&hd->flip_lock);
- if (ret)
- ALOGE("Failed to unlock flip lock ret=%d", ret);
-
-
- return NULL;
+static void hwc_close_fences(hwc_display_contents_1_t *display_contents) {
+ for (int i = 0; i < (int)display_contents->numHwLayers; ++i) {
+ hwc_layer_1_t *layer = &display_contents->hwLayers[i];
+ if (layer->acquireFenceFd >= 0) {
+ close(layer->acquireFenceFd);
+ layer->acquireFenceFd = -1;
+ }
+ }
+ if (display_contents->outbufAcquireFenceFd >= 0) {
+ close(display_contents->outbufAcquireFenceFd);
+ display_contents->outbufAcquireFenceFd = -1;
+ }
}
static int hwc_set_display(hwc_context_t *ctx, int display,
- hwc_display_contents_1_t* display_contents)
-{
- struct hwc_drm_display *hd = NULL;
- hwc_layer_1_t *layer = NULL;
- struct hwc_drm_bo buf;
- int ret, i;
- uint32_t fb_id;
-
- memset(&buf, 0, sizeof(buf));
-
- ret = hwc_get_drm_display(ctx, display, &hd);
- if (ret)
- goto out;
-
- if (!hd->active_crtc) {
- ALOGE("There is no active crtc for display %d", display);
- ret = -ENOENT;
- goto out;
- }
-
- /*
- * TODO: We can only support one hw layer atm, so choose either the
- * first one or the framebuffer target.
- */
- if (!display_contents->numHwLayers) {
- return 0;
- } else if (display_contents->numHwLayers == 1) {
- layer = &display_contents->hwLayers[0];
- } else {
- for (i = 0; i < (int)display_contents->numHwLayers; i++) {
- layer = &display_contents->hwLayers[i];
- if (layer->compositionType == HWC_FRAMEBUFFER_TARGET)
- break;
- }
- if (i == (int)display_contents->numHwLayers) {
- ALOGE("Could not find a suitable layer for display %d",
- display);
- }
- }
-
-
- ret = pthread_mutex_lock(&hd->set_worker.lock);
- if (ret) {
- ALOGE("Failed to lock set lock in set() %d", ret);
- goto out;
- }
-
- ret = hwc_import_bo_create(ctx->fd, ctx->import_ctx, layer->handle,
- &buf);
- if (ret) {
- ALOGE("Failed to import handle to drm bo %d", ret);
- goto out;
- }
- buf.acquire_fence_fd = layer->acquireFenceFd;
- layer->acquireFenceFd = -1;
-
- /*
- * TODO: Retire and release can use the same sync point here b/c hwc is
- * restricted to one layer. Once that is no longer true, this will need
- * to change
- */
- hd->timeline_next++;
- display_contents->retireFenceFd = sw_sync_fence_create(hd->timeline_fd,
- "drm_hwc_retire", hd->timeline_next);
- layer->releaseFenceFd = sw_sync_fence_create(hd->timeline_fd,
- "drm_hwc_release", hd->timeline_next);
- hd->buf_queue.push_back(buf);
-
- ret = pthread_cond_signal(&hd->set_worker.cond);
- if (ret)
- ALOGE("Failed to signal set worker %d", ret);
-
- if (pthread_mutex_unlock(&hd->set_worker.lock))
- ALOGE("Failed to unlock set lock in set()");
-
-out:
- /* Close input fences. */
- for (i = 0; i < (int)display_contents->numHwLayers; i++) {
- layer = &display_contents->hwLayers[i];
- if (layer->acquireFenceFd >= 0) {
- close(layer->acquireFenceFd);
- layer->acquireFenceFd = -1;
- }
- }
- if (display_contents->outbufAcquireFenceFd >= 0) {
- close(display_contents->outbufAcquireFenceFd);
- display_contents->outbufAcquireFenceFd = -1;
- }
-
- return ret;
+ hwc_display_contents_1_t *display_contents) {
+ struct hwc_drm_display *hd = NULL;
+ int ret = hwc_get_drm_display(ctx, display, &hd);
+ if (ret) {
+ hwc_close_fences(display_contents);
+ return ret;
+ }
+
+ if (!hd->active_crtc) {
+ ALOGE("There is no active crtc for display %d", display);
+ hwc_close_fences(display_contents);
+ return -ENOENT;
+ }
+
+ /*
+ * TODO: We can only support one hw layer atm, so choose either the
+ * first one or the framebuffer target.
+ */
+ hwc_layer_1_t *layer = NULL;
+ if (!display_contents->numHwLayers) {
+ return 0;
+ } else if (display_contents->numHwLayers == 1) {
+ layer = &display_contents->hwLayers[0];
+ } else {
+ int i;
+ for (i = 0; i < (int)display_contents->numHwLayers; ++i) {
+ layer = &display_contents->hwLayers[i];
+ if (layer->compositionType == HWC_FRAMEBUFFER_TARGET)
+ break;
+ }
+ if (i == (int)display_contents->numHwLayers) {
+ ALOGE("Could not find a suitable layer for display %d", display);
+ }
+ }
+
+ ret = pthread_mutex_lock(&hd->set_worker.lock);
+ if (ret) {
+ ALOGE("Failed to lock set lock in set() %d", ret);
+ hwc_close_fences(display_contents);
+ return ret;
+ }
+
+ struct hwc_drm_bo buf;
+ memset(&buf, 0, sizeof(buf));
+ ret = hwc_import_bo_create(ctx->fd, ctx->import_ctx, layer->handle, &buf);
+ if (ret) {
+ ALOGE("Failed to import handle to drm bo %d", ret);
+ hwc_close_fences(display_contents);
+ return ret;
+ }
+ buf.acquire_fence_fd = layer->acquireFenceFd;
+ layer->acquireFenceFd = -1;
+
+ /*
+ * TODO: Retire and release can use the same sync point here b/c hwc is
+ * restricted to one layer. Once that is no longer true, this will need
+ * to change
+ */
+ ++hd->timeline_next;
+ display_contents->retireFenceFd = sw_sync_fence_create(
+ hd->timeline_fd, "drm_hwc_retire", hd->timeline_next);
+ layer->releaseFenceFd = sw_sync_fence_create(
+ hd->timeline_fd, "drm_hwc_release", hd->timeline_next);
+ hd->buf_queue.push_back(buf);
+
+ ret = pthread_cond_signal(&hd->set_worker.cond);
+ if (ret)
+ ALOGE("Failed to signal set worker %d", ret);
+
+ if (pthread_mutex_unlock(&hd->set_worker.lock))
+ ALOGE("Failed to unlock set lock in set()");
+
+ hwc_close_fences(display_contents);
+ return ret;
}
static int hwc_set(hwc_composer_device_1_t *dev, size_t num_displays,
- hwc_display_contents_1_t** display_contents)
-{
- struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common;
- int ret = 0, i;
+ hwc_display_contents_1_t **display_contents) {
+ struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common;
- for (i = 0; i < (int)num_displays && i < MAX_NUM_DISPLAYS; i++) {
- if (display_contents[i])
- ret = hwc_set_display(ctx, i, display_contents[i]);
- }
+ int ret = 0;
+ for (int i = 0; i < (int)num_displays && i < MAX_NUM_DISPLAYS; ++i) {
+ if (display_contents[i])
+ ret = hwc_set_display(ctx, i, display_contents[i]);
+ }
- return ret;
+ return ret;
}
-static int hwc_event_control(struct hwc_composer_device_1* dev, int display,
- int event, int enabled)
-{
- struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common;
- struct hwc_drm_display *hd = NULL;
- int ret;
-
- ret = hwc_get_drm_display(ctx, display, &hd);
- if (ret)
- return ret;
-
- if (event != HWC_EVENT_VSYNC || (enabled != 0 && enabled != 1))
- return -EINVAL;
-
- if (hd->active_pipe == -1) {
- ALOGD("Can't service events for display %d, no pipe", display);
- return -EINVAL;
- }
-
- hd->enable_vsync_events = !!enabled;
-
- if (!hd->enable_vsync_events)
- return 0;
-
- /*
- * Note that it's possible that the event worker is already waiting for
- * a vsync, and this will be a duplicate request. In that event, we'll
- * end up firing the event handler twice, and it will discard the second
- * event. Not ideal, but not worth introducing a bunch of additional
- * logic/locks/state for.
- */
- ret = hwc_queue_vblank_event(hd);
- if (ret) {
- ALOGE("Failed to queue vblank event ret=%d", ret);
- return ret;
- }
-
- return 0;
+static int hwc_event_control(struct hwc_composer_device_1 *dev, int display,
+ int event, int enabled) {
+ struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common;
+ struct hwc_drm_display *hd = NULL;
+ int ret = hwc_get_drm_display(ctx, display, &hd);
+ if (ret)
+ return ret;
+
+ if (event != HWC_EVENT_VSYNC || (enabled != 0 && enabled != 1))
+ return -EINVAL;
+
+ if (hd->active_pipe == -1) {
+ ALOGD("Can't service events for display %d, no pipe", display);
+ return -EINVAL;
+ }
+
+ hd->enable_vsync_events = !!enabled;
+
+ if (!hd->enable_vsync_events)
+ return 0;
+
+ /*
+ * Note that it's possible that the event worker is already waiting for
+ * a vsync, and this will be a duplicate request. In that event, we'll
+ * end up firing the event handler twice, and it will discard the second
+ * event. Not ideal, but not worth introducing a bunch of additional
+ * logic/locks/state for.
+ */
+ ret = hwc_queue_vblank_event(hd);
+ if (ret) {
+ ALOGE("Failed to queue vblank event ret=%d", ret);
+ return ret;
+ }
+
+ return 0;
}
-static int hwc_set_power_mode(struct hwc_composer_device_1* dev, int display,
- int mode)
-{
- struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common;
- struct hwc_drm_display *hd = NULL;
- drmModeConnectorPtr c;
- int ret, i;
- uint32_t dpms_prop = 0;
- uint64_t dpms_value = 0;
-
- ret = hwc_get_drm_display(ctx, display, &hd);
- if (ret)
- return ret;
-
- c = drmModeGetConnector(ctx->fd, hd->connector_id);
- if (!c) {
- ALOGE("Failed to get connector %d", display);
- return -ENODEV;
- }
-
- for (i = 0; !dpms_prop && i < c->count_props; i++) {
- drmModePropertyPtr p;
-
- p = drmModeGetProperty(ctx->fd, c->props[i]);
- if (!p)
- continue;
-
- if (!strcmp(p->name, "DPMS"))
- dpms_prop = c->props[i];
-
- drmModeFreeProperty(p);
- }
- if (!dpms_prop) {
- ALOGE("Failed to get DPMS property from display %d", display);
- ret = -ENOENT;
- goto out;
- }
-
- switch(mode) {
- case HWC_POWER_MODE_OFF:
- dpms_value = DRM_MODE_DPMS_OFF;
- break;
-
- /* We can't support dozing right now, so go full on */
- case HWC_POWER_MODE_DOZE:
- case HWC_POWER_MODE_DOZE_SUSPEND:
- case HWC_POWER_MODE_NORMAL:
- dpms_value = DRM_MODE_DPMS_ON;
- break;
- };
-
- ret = drmModeConnectorSetProperty(ctx->fd, c->connector_id,
- dpms_prop, dpms_value);
- if (ret) {
- ALOGE("Failed to set DPMS property for display %d", display);
- goto out;
- }
-
-out:
- drmModeFreeConnector(c);
- return ret;
+static int hwc_set_power_mode(struct hwc_composer_device_1 *dev, int display,
+ int mode) {
+ struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common;
+
+ struct hwc_drm_display *hd = NULL;
+ int ret = hwc_get_drm_display(ctx, display, &hd);
+ if (ret)
+ return ret;
+
+ drmModeConnectorPtr c = drmModeGetConnector(ctx->fd, hd->connector_id);
+ if (!c) {
+ ALOGE("Failed to get connector %d", display);
+ return -ENODEV;
+ }
+
+ uint32_t dpms_prop = 0;
+ for (int i = 0; !dpms_prop && i < c->count_props; ++i) {
+ drmModePropertyPtr p;
+
+ p = drmModeGetProperty(ctx->fd, c->props[i]);
+ if (!p)
+ continue;
+
+ if (!strcmp(p->name, "DPMS"))
+ dpms_prop = c->props[i];
+
+ drmModeFreeProperty(p);
+ }
+ if (!dpms_prop) {
+ ALOGE("Failed to get DPMS property from display %d", display);
+ drmModeFreeConnector(c);
+ return -ENOENT;
+ }
+
+ uint64_t dpms_value = 0;
+ switch (mode) {
+ case HWC_POWER_MODE_OFF:
+ dpms_value = DRM_MODE_DPMS_OFF;
+ break;
+
+ /* We can't support dozing right now, so go full on */
+ case HWC_POWER_MODE_DOZE:
+ case HWC_POWER_MODE_DOZE_SUSPEND:
+ case HWC_POWER_MODE_NORMAL:
+ dpms_value = DRM_MODE_DPMS_ON;
+ break;
+ };
+
+ ret = drmModeConnectorSetProperty(ctx->fd, c->connector_id, dpms_prop,
+ dpms_value);
+ if (ret) {
+ ALOGE("Failed to set DPMS property for display %d", display);
+ drmModeFreeConnector(c);
+ return ret;
+ }
+
+ drmModeFreeConnector(c);
+ return 0;
}
-static int hwc_query(struct hwc_composer_device_1 */* dev */, int what,
- int *value)
-{
- switch(what) {
- case HWC_BACKGROUND_LAYER_SUPPORTED:
- *value = 0; /* TODO: We should do this */
- break;
- case HWC_VSYNC_PERIOD:
- ALOGW("Query for deprecated vsync value, returning 60Hz");
- *value = 1000 * 1000 * 1000 / 60;
- break;
- case HWC_DISPLAY_TYPES_SUPPORTED:
- *value = HWC_DISPLAY_PRIMARY | HWC_DISPLAY_EXTERNAL;
- break;
- }
- return 0;
+static int hwc_query(struct hwc_composer_device_1 * /* dev */, int what,
+ int *value) {
+ switch (what) {
+ case HWC_BACKGROUND_LAYER_SUPPORTED:
+ *value = 0; /* TODO: We should do this */
+ break;
+ case HWC_VSYNC_PERIOD:
+ ALOGW("Query for deprecated vsync value, returning 60Hz");
+ *value = 1000 * 1000 * 1000 / 60;
+ break;
+ case HWC_DISPLAY_TYPES_SUPPORTED:
+ *value = HWC_DISPLAY_PRIMARY | HWC_DISPLAY_EXTERNAL;
+ break;
+ }
+ return 0;
}
-static void hwc_register_procs(struct hwc_composer_device_1* dev,
- hwc_procs_t const* procs)
-{
- struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common;
+static void hwc_register_procs(struct hwc_composer_device_1 *dev,
+ hwc_procs_t const *procs) {
+ struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common;
- ctx->procs = procs;
+ ctx->procs = procs;
}
-static int hwc_get_display_configs(struct hwc_composer_device_1* dev,
- int display, uint32_t* configs, size_t* numConfigs)
-{
- struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common;
- struct hwc_drm_display *hd = NULL;
- drmModeConnectorPtr c;
- int ret = 0, i;
-
- if (!*numConfigs)
- return 0;
-
- ret = hwc_get_drm_display(ctx, display, &hd);
- if (ret)
- return ret;
-
- c = drmModeGetConnector(ctx->fd, hd->connector_id);
- if (!c) {
- ALOGE("Failed to get connector %d", display);
- return -ENODEV;
- }
-
- if (hd->configs) {
- free(hd->configs);
- hd->configs = NULL;
- }
-
- if (c->connection == DRM_MODE_DISCONNECTED) {
- ret = -ENODEV;
- goto out;
- }
-
- hd->configs = (drmModeModeInfoPtr)calloc(c->count_modes,
- sizeof(*hd->configs));
- if (!hd->configs) {
- ALOGE("Failed to allocate config list for display %d", display);
- ret = -ENOMEM;
- hd->num_configs = 0;
- goto out;
- }
-
- for (i = 0; i < c->count_modes; i++) {
- drmModeModeInfoPtr m = &hd->configs[i];
-
- memcpy(m, &c->modes[i], sizeof(*m));
-
- if (i < (int)*numConfigs)
- configs[i] = i;
- }
-
- hd->num_configs = c->count_modes;
- *numConfigs = MIN(c->count_modes, *numConfigs);
-
-out:
- drmModeFreeConnector(c);
- return ret;
+static int hwc_get_display_configs(struct hwc_composer_device_1 *dev,
+ int display, uint32_t *configs,
+ size_t *numConfigs) {
+ if (!*numConfigs)
+ return 0;
+
+ struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common;
+ struct hwc_drm_display *hd = NULL;
+ int ret = hwc_get_drm_display(ctx, display, &hd);
+ if (ret)
+ return ret;
+
+ drmModeConnectorPtr c = drmModeGetConnector(ctx->fd, hd->connector_id);
+ if (!c) {
+ ALOGE("Failed to get connector %d", display);
+ return -ENODEV;
+ }
+
+ if (hd->configs) {
+ free(hd->configs);
+ hd->configs = NULL;
+ }
+
+ if (c->connection == DRM_MODE_DISCONNECTED) {
+ drmModeFreeConnector(c);
+ return -ENODEV;
+ }
+
+ hd->configs =
+ (drmModeModeInfoPtr)calloc(c->count_modes, sizeof(*hd->configs));
+ if (!hd->configs) {
+ ALOGE("Failed to allocate config list for display %d", display);
+ hd->num_configs = 0;
+ drmModeFreeConnector(c);
+ return -ENOMEM;
+ }
+
+ for (int i = 0; i < c->count_modes; ++i) {
+ drmModeModeInfoPtr m = &hd->configs[i];
+
+ memcpy(m, &c->modes[i], sizeof(*m));
+
+ if (i < (int)*numConfigs)
+ configs[i] = i;
+ }
+
+ hd->num_configs = c->count_modes;
+ *numConfigs = MIN(c->count_modes, *numConfigs);
+
+ drmModeFreeConnector(c);
+ return 0;
}
static int hwc_check_config_valid(struct hwc_context_t *ctx,
- drmModeConnectorPtr connector, int display,
- int config_idx)
-{
- struct hwc_drm_display *hd = NULL;
- drmModeModeInfoPtr m = NULL;
- int ret = 0, i;
-
- ret = hwc_get_drm_display(ctx, display, &hd);
- if (ret)
- return ret;
-
- /* Make sure the requested config is still valid for the display */
- for (i = 0; i < connector->count_modes; i++) {
- if (hwc_mode_is_equal(&connector->modes[i],
- &hd->configs[config_idx])) {
- m = &hd->configs[config_idx];
- break;
- }
- }
- if (!m)
- return -ENOENT;
-
- return 0;
+ drmModeConnectorPtr connector, int display,
+ int config_idx) {
+ struct hwc_drm_display *hd = NULL;
+ int ret = hwc_get_drm_display(ctx, display, &hd);
+ if (ret)
+ return ret;
+
+ /* Make sure the requested config is still valid for the display */
+ drmModeModeInfoPtr m = NULL;
+ for (int i = 0; i < connector->count_modes; ++i) {
+ if (hwc_mode_is_equal(&connector->modes[i], &hd->configs[config_idx])) {
+ m = &hd->configs[config_idx];
+ break;
+ }
+ }
+ if (!m)
+ return -ENOENT;
+
+ return 0;
}
-static int hwc_get_display_attributes(struct hwc_composer_device_1* dev,
- int display, uint32_t config, const uint32_t* attributes,
- int32_t* values)
-{
- struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common;
- struct hwc_drm_display *hd = NULL;
- drmModeConnectorPtr c;
- drmModeModeInfoPtr m;
- int ret, i;
-
- ret = hwc_get_drm_display(ctx, display, &hd);
- if (ret)
- return ret;
-
- if (config >= hd->num_configs) {
- ALOGE("Requested config is out-of-bounds %d %d", config,
- hd->num_configs);
- return -EINVAL;
- }
-
- c = drmModeGetConnector(ctx->fd, hd->connector_id);
- if (!c) {
- ALOGE("Failed to get connector %d", display);
- return -ENODEV;
- }
-
- ret = hwc_check_config_valid(ctx, c, display, (int)config);
- if (ret) {
- ALOGE("Provided config is no longer valid %u", config);
- goto out;
- }
-
- m = &hd->configs[config];
- for (i = 0; attributes[i] != HWC_DISPLAY_NO_ATTRIBUTE; i++) {
- switch(attributes[i]) {
- case HWC_DISPLAY_VSYNC_PERIOD:
- values[i] = 1000 * 1000 * 1000 / m->vrefresh;
- break;
- case HWC_DISPLAY_WIDTH:
- values[i] = m->hdisplay;
- break;
- case HWC_DISPLAY_HEIGHT:
- values[i] = m->vdisplay;
- break;
- case HWC_DISPLAY_DPI_X:
- /* Dots per 1000 inches */
- values[i] = c->mmWidth ?
- (m->hdisplay * UM_PER_INCH) / c->mmWidth : 0;
- break;
- case HWC_DISPLAY_DPI_Y:
- /* Dots per 1000 inches */
- values[i] = c->mmHeight ?
- (m->vdisplay * UM_PER_INCH) / c->mmHeight : 0;
- break;
- }
- }
-
-out:
- drmModeFreeConnector(c);
- return ret;
+static int hwc_get_display_attributes(struct hwc_composer_device_1 *dev,
+ int display, uint32_t config,
+ const uint32_t *attributes,
+ int32_t *values) {
+ struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common;
+ struct hwc_drm_display *hd = NULL;
+ int ret = hwc_get_drm_display(ctx, display, &hd);
+ if (ret)
+ return ret;
+
+ if (config >= hd->num_configs) {
+ ALOGE("Requested config is out-of-bounds %d %d", config, hd->num_configs);
+ return -EINVAL;
+ }
+
+ drmModeConnectorPtr c = drmModeGetConnector(ctx->fd, hd->connector_id);
+ if (!c) {
+ ALOGE("Failed to get connector %d", display);
+ return -ENODEV;
+ }
+
+ ret = hwc_check_config_valid(ctx, c, display, (int)config);
+ if (ret) {
+ ALOGE("Provided config is no longer valid %u", config);
+ drmModeFreeConnector(c);
+ return ret;
+ }
+
+ drmModeModeInfoPtr m = &hd->configs[config];
+ for (int i = 0; attributes[i] != HWC_DISPLAY_NO_ATTRIBUTE; ++i) {
+ switch (attributes[i]) {
+ case HWC_DISPLAY_VSYNC_PERIOD:
+ values[i] = 1000 * 1000 * 1000 / m->vrefresh;
+ break;
+ case HWC_DISPLAY_WIDTH:
+ values[i] = m->hdisplay;
+ break;
+ case HWC_DISPLAY_HEIGHT:
+ values[i] = m->vdisplay;
+ break;
+ case HWC_DISPLAY_DPI_X:
+ /* Dots per 1000 inches */
+ values[i] = c->mmWidth ? (m->hdisplay * UM_PER_INCH) / c->mmWidth : 0;
+ break;
+ case HWC_DISPLAY_DPI_Y:
+ /* Dots per 1000 inches */
+ values[i] = c->mmHeight ? (m->vdisplay * UM_PER_INCH) / c->mmHeight : 0;
+ break;
+ }
+ }
+
+ drmModeFreeConnector(c);
+ return 0;
}
-static int hwc_get_active_config(struct hwc_composer_device_1* dev, int display)
-{
- struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common;
- struct hwc_drm_display *hd = NULL;
- int ret, i, index = -1;
-
- ret = hwc_get_drm_display(ctx, display, &hd);
- if (ret)
- return ret;
-
- /* Find the current mode in the config list */
- for (i = 0; i < (int)hd->num_configs; i++) {
- if (hwc_mode_is_equal(&hd->configs[i], &hd->active_mode)) {
- index = i;
- break;
- }
- }
-
- return index;
+static int hwc_get_active_config(struct hwc_composer_device_1 *dev,
+ int display) {
+ struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common;
+ struct hwc_drm_display *hd = NULL;
+ int ret = hwc_get_drm_display(ctx, display, &hd);
+ if (ret)
+ return ret;
+
+ /* Find the current mode in the config list */
+ int index = -1;
+ for (int i = 0; i < (int)hd->num_configs; ++i) {
+ if (hwc_mode_is_equal(&hd->configs[i], &hd->active_mode)) {
+ index = i;
+ break;
+ }
+ }
+ return index;
}
-static bool hwc_crtc_is_bound(struct hwc_context_t *ctx, uint32_t crtc_id)
-{
- int i;
-
- for (i = 0; i < MAX_NUM_DISPLAYS; i++) {
- if (ctx->displays[i].active_crtc == crtc_id)
- return true;
- }
- return false;
+static bool hwc_crtc_is_bound(struct hwc_context_t *ctx, uint32_t crtc_id) {
+ for (int i = 0; i < MAX_NUM_DISPLAYS; ++i) {
+ if (ctx->displays[i].active_crtc == crtc_id)
+ return true;
+ }
+ return false;
}
static int hwc_try_encoder(struct hwc_context_t *ctx, drmModeResPtr r,
- uint32_t encoder_id, uint32_t *crtc_id)
-{
- drmModeEncoderPtr e;
- int ret, i;
-
- e = drmModeGetEncoder(ctx->fd, encoder_id);
- if (!e) {
- ALOGE("Failed to get encoder for connector %d", encoder_id);
- return -ENODEV;
- }
-
- /* First try to use the currently-bound crtc */
- if (e->crtc_id) {
- if (!hwc_crtc_is_bound(ctx, e->crtc_id)) {
- *crtc_id = e->crtc_id;
- ret = 0;
- goto out;
- }
- }
-
- /* Try to find a possible crtc which will work */
- for (i = 0; i < r->count_crtcs; i++) {
- if (!(e->possible_crtcs & (1 << i)))
- continue;
-
- /* We've already tried this earlier */
- if (e->crtc_id == r->crtcs[i])
- continue;
-
- if (!hwc_crtc_is_bound(ctx, r->crtcs[i])) {
- *crtc_id = r->crtcs[i];
- ret = 0;
- goto out;
- }
- }
-
- /* We can't use the encoder, but nothing went wrong, try another one */
- ret = -EAGAIN;
-
-out:
- drmModeFreeEncoder(e);
- return ret;
+ uint32_t encoder_id, uint32_t *crtc_id) {
+ drmModeEncoderPtr e = drmModeGetEncoder(ctx->fd, encoder_id);
+ if (!e) {
+ ALOGE("Failed to get encoder for connector %d", encoder_id);
+ return -ENODEV;
+ }
+
+ /* First try to use the currently-bound crtc */
+ int ret = 0;
+ if (e->crtc_id) {
+ if (!hwc_crtc_is_bound(ctx, e->crtc_id)) {
+ *crtc_id = e->crtc_id;
+ drmModeFreeEncoder(e);
+ return 0;
+ }
+ }
+
+ /* Try to find a possible crtc which will work */
+ for (int i = 0; i < r->count_crtcs; ++i) {
+ if (!(e->possible_crtcs & (1 << i)))
+ continue;
+
+ /* We've already tried this earlier */
+ if (e->crtc_id == r->crtcs[i])
+ continue;
+
+ if (!hwc_crtc_is_bound(ctx, r->crtcs[i])) {
+ *crtc_id = r->crtcs[i];
+ drmModeFreeEncoder(e);
+ return 0;
+ }
+ }
+
+ /* We can't use the encoder, but nothing went wrong, try another one */
+ drmModeFreeEncoder(e);
+ return -EAGAIN;
}
-static int hwc_set_active_config(struct hwc_composer_device_1* dev, int display,
- int index)
-{
- struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common;
- struct hwc_drm_display *hd = NULL;
- drmModeResPtr r = NULL;
- drmModeConnectorPtr c;
- uint32_t crtc_id = 0;
- int ret, i;
- bool new_crtc, new_encoder;
-
- ret = hwc_get_drm_display(ctx, display, &hd);
- if (ret)
- return ret;
-
- c = drmModeGetConnector(ctx->fd, hd->connector_id);
- if (!c) {
- ALOGE("Failed to get connector %d", display);
- return -ENODEV;
- }
-
- if (c->connection == DRM_MODE_DISCONNECTED) {
- ALOGE("Tried to configure a disconnected display %d", display);
- ret = -ENODEV;
- goto out;
- }
-
- if (index >= c->count_modes) {
- ALOGE("Index is out-of-bounds %d/%d", index, c->count_modes);
- ret = -ENOENT;
- goto out;
- }
-
- r = drmModeGetResources(ctx->fd);
- if (!r) {
- ALOGE("Failed to get drm resources");
- goto out;
- }
-
- /* We no longer have an active_crtc */
- hd->active_crtc = 0;
- hd->active_pipe = -1;
-
- /* First, try to use the currently-connected encoder */
- if (c->encoder_id) {
- ret = hwc_try_encoder(ctx, r, c->encoder_id, &crtc_id);
- if (ret && ret != -EAGAIN) {
- ALOGE("Encoder try failed %d", ret);
- goto out;
- }
- }
-
- /* We couldn't find a crtc with the attached encoder, try the others */
- if (!crtc_id) {
- for (i = 0; i < c->count_encoders; i++) {
- ret = hwc_try_encoder(ctx, r, c->encoders[i], &crtc_id);
- if (!ret) {
- break;
- } else if (ret != -EAGAIN) {
- ALOGE("Encoder try failed %d", ret);
- goto out;
- }
- }
- if (!crtc_id) {
- ALOGE("Couldn't find valid crtc to modeset");
- ret = -EINVAL;
- goto out;
- }
- }
-
- hd->active_crtc = crtc_id;
-
- memcpy(&hd->active_mode, &hd->configs[index], sizeof(hd->active_mode));
-
- /* Find the pipe corresponding to the crtc_id */
- for (i = 0; i < r->count_crtcs; i++) {
- /* We've already tried this earlier */
- if (r->crtcs[i] == crtc_id) {
- hd->active_pipe = i;
- break;
- }
- }
- /* This should never happen... hehehe */
- if (hd->active_pipe == -1) {
- ALOGE("Active crtc was not found in resources!!");
- ret = -ENODEV;
- goto out;
- }
-
- /* TODO: Once we have atomic, set the crtc timing info here */
-
-out:
- if (r)
- drmModeFreeResources(r);
-
- drmModeFreeConnector(c);
- return ret;
+static int hwc_set_active_config(struct hwc_composer_device_1 *dev, int display,
+ int index) {
+ struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common;
+ struct hwc_drm_display *hd = NULL;
+ int ret = hwc_get_drm_display(ctx, display, &hd);
+ if (ret)
+ return ret;
+
+ drmModeConnectorPtr c = drmModeGetConnector(ctx->fd, hd->connector_id);
+ if (!c) {
+ ALOGE("Failed to get connector %d", display);
+ return -ENODEV;
+ }
+
+ if (c->connection == DRM_MODE_DISCONNECTED) {
+ ALOGE("Tried to configure a disconnected display %d", display);
+ drmModeFreeConnector(c);
+ return -ENODEV;
+ }
+
+ if (index >= c->count_modes) {
+ ALOGE("Index is out-of-bounds %d/%d", index, c->count_modes);
+ drmModeFreeConnector(c);
+ return -ENOENT;
+ }
+
+ drmModeResPtr r = drmModeGetResources(ctx->fd);
+ if (!r) {
+ ALOGE("Failed to get drm resources");
+ drmModeFreeResources(r);
+ drmModeFreeConnector(c);
+ return -ENODEV;
+ }
+
+ /* We no longer have an active_crtc */
+ hd->active_crtc = 0;
+ hd->active_pipe = -1;
+
+ /* First, try to use the currently-connected encoder */
+ uint32_t crtc_id = 0;
+ if (c->encoder_id) {
+ ret = hwc_try_encoder(ctx, r, c->encoder_id, &crtc_id);
+ if (ret && ret != -EAGAIN) {
+ ALOGE("Encoder try failed %d", ret);
+ drmModeFreeResources(r);
+ drmModeFreeConnector(c);
+ return ret;
+ }
+ }
+
+ /* We couldn't find a crtc with the attached encoder, try the others */
+ if (!crtc_id) {
+ for (int i = 0; i < c->count_encoders; ++i) {
+ ret = hwc_try_encoder(ctx, r, c->encoders[i], &crtc_id);
+ if (!ret) {
+ break;
+ } else if (ret != -EAGAIN) {
+ ALOGE("Encoder try failed %d", ret);
+ drmModeFreeResources(r);
+ drmModeFreeConnector(c);
+ return ret;
+ }
+ }
+ if (!crtc_id) {
+ ALOGE("Couldn't find valid crtc to modeset");
+ drmModeFreeConnector(c);
+ drmModeFreeResources(r);
+ return -EINVAL;
+ }
+ }
+ drmModeFreeConnector(c);
+
+ hd->active_crtc = crtc_id;
+ memcpy(&hd->active_mode, &hd->configs[index], sizeof(hd->active_mode));
+
+ /* Find the pipe corresponding to the crtc_id */
+ for (int i = 0; i < r->count_crtcs; ++i) {
+ /* We've already tried this earlier */
+ if (r->crtcs[i] == crtc_id) {
+ hd->active_pipe = i;
+ break;
+ }
+ }
+ drmModeFreeResources(r);
+ /* This should never happen... hehehe */
+ if (hd->active_pipe == -1) {
+ ALOGE("Active crtc was not found in resources!!");
+ return -ENODEV;
+ }
+
+ /* TODO: Once we have atomic, set the crtc timing info here */
+ return 0;
}
-static int hwc_destroy_worker(struct hwc_worker *worker)
-{
- int ret;
+static int hwc_destroy_worker(struct hwc_worker *worker) {
+ int ret = pthread_mutex_lock(&worker->lock);
+ if (ret) {
+ ALOGE("Failed to lock in destroy() %d", ret);
+ return ret;
+ }
- ret = pthread_mutex_lock(&worker->lock);
- if (ret) {
- ALOGE("Failed to lock in destroy() %d", ret);
- return ret;
- }
+ worker->exit = true;
- worker->exit = true;
+ ret |= pthread_cond_signal(&worker->cond);
+ if (ret)
+ ALOGE("Failed to signal cond in destroy() %d", ret);
- ret |= pthread_cond_signal(&worker->cond);
- if (ret)
- ALOGE("Failed to signal cond in destroy() %d", ret);
+ ret |= pthread_mutex_unlock(&worker->lock);
+ if (ret)
+ ALOGE("Failed to unlock in destroy() %d", ret);
- ret |= pthread_mutex_unlock(&worker->lock);
- if (ret)
- ALOGE("Failed to unlock in destroy() %d", ret);
+ ret |= pthread_join(worker->thread, NULL);
+ if (ret && ret != ESRCH)
+ ALOGE("Failed to join thread in destroy() %d", ret);
- ret |= pthread_join(worker->thread, NULL);
- if (ret && ret != ESRCH)
- ALOGE("Failed to join thread in destroy() %d", ret);
-
- return ret;
+ return ret;
}
-static void hwc_destroy_display(struct hwc_drm_display *hd)
-{
- int ret;
-
- if (hwc_destroy_worker(&hd->set_worker))
- ALOGE("Destroy set worker failed");
+static void hwc_destroy_display(struct hwc_drm_display *hd) {
+ if (hwc_destroy_worker(&hd->set_worker))
+ ALOGE("Destroy set worker failed");
}
-static int hwc_device_close(struct hw_device_t *dev)
-{
- struct hwc_context_t *ctx = (struct hwc_context_t *)dev;
- int ret, i;
+static int hwc_device_close(struct hw_device_t *dev) {
+ struct hwc_context_t *ctx = (struct hwc_context_t *)dev;
- for (i = 0; i < MAX_NUM_DISPLAYS; i++)
- hwc_destroy_display(&ctx->displays[i]);
+ for (int i = 0; i < MAX_NUM_DISPLAYS; ++i)
+ hwc_destroy_display(&ctx->displays[i]);
- if (hwc_destroy_worker(&ctx->event_worker))
- ALOGE("Destroy event worker failed");
+ if (hwc_destroy_worker(&ctx->event_worker))
+ ALOGE("Destroy event worker failed");
- drmClose(ctx->fd);
+ drmClose(ctx->fd);
- ret = hwc_import_destroy(ctx->import_ctx);
- if (ret)
- ALOGE("Could not destroy import %d", ret);
+ int ret = hwc_import_destroy(ctx->import_ctx);
+ if (ret)
+ ALOGE("Could not destroy import %d", ret);
- delete ctx;
+ delete ctx;
- return 0;
+ return 0;
}
static int hwc_initialize_worker(struct hwc_worker *worker,
- void *(*routine)(void*), void *arg)
-{
- int ret;
-
- ret = pthread_cond_init(&worker->cond, NULL);
- if (ret) {
- ALOGE("Failed to create worker condition %d", ret);
- return ret;
- }
-
- ret = pthread_mutex_init(&worker->lock, NULL);
- if (ret) {
- ALOGE("Failed to initialize worker lock %d", ret);
- goto err_cond;
- }
-
- worker->exit = false;
-
- ret = pthread_create(&worker->thread, NULL, routine, arg);
- if (ret) {
- ALOGE("Could not create worker thread %d", ret);
- goto err_lock;
- }
- return 0;
-
-err_lock:
- pthread_mutex_destroy(&worker->lock);
-err_cond:
- pthread_cond_destroy(&worker->cond);
- return ret;
+ void *(*routine)(void *), void *arg) {
+ int ret = pthread_cond_init(&worker->cond, NULL);
+ if (ret) {
+ ALOGE("Failed to create worker condition %d", ret);
+ return ret;
+ }
+
+ ret = pthread_mutex_init(&worker->lock, NULL);
+ if (ret) {
+ ALOGE("Failed to initialize worker lock %d", ret);
+ pthread_cond_destroy(&worker->cond);
+ return ret;
+ }
+
+ worker->exit = false;
+
+ ret = pthread_create(&worker->thread, NULL, routine, arg);
+ if (ret) {
+ ALOGE("Could not create worker thread %d", ret);
+ pthread_mutex_destroy(&worker->lock);
+ pthread_cond_destroy(&worker->cond);
+ return ret;
+ }
+ return 0;
}
/*
* should be fixed such that it selects the preferred mode for the display, or
* some other, saner, method of choosing the config.
*/
-static int hwc_set_initial_config(struct hwc_drm_display *hd)
-{
- int ret;
- uint32_t config;
- size_t num_configs = 1;
-
- ret = hwc_get_display_configs(&hd->ctx->device, hd->display, &config,
- &num_configs);
- if (ret || !num_configs)
- return 0;
-
- ret = hwc_set_active_config(&hd->ctx->device, hd->display, 0);
- if (ret) {
- ALOGE("Failed to set active config d=%d ret=%d", hd->display,
- ret);
- return ret;
- }
-
- return ret;
+static int hwc_set_initial_config(struct hwc_drm_display *hd) {
+ uint32_t config;
+ size_t num_configs = 1;
+ int ret = hwc_get_display_configs(&hd->ctx->device, hd->display, &config,
+ &num_configs);
+ if (ret || !num_configs)
+ return 0;
+
+ ret = hwc_set_active_config(&hd->ctx->device, hd->display, 0);
+ if (ret) {
+ ALOGE("Failed to set active config d=%d ret=%d", hd->display, ret);
+ return ret;
+ }
+
+ return ret;
}
static int hwc_initialize_display(struct hwc_context_t *ctx, int display,
- uint32_t connector_id)
-{
- struct hwc_drm_display *hd = NULL;
- int ret;
-
- ret = hwc_get_drm_display(ctx, display, &hd);
- if (ret)
- return ret;
-
- hd->ctx = ctx;
- hd->display = display;
- hd->active_pipe = -1;
- hd->initial_modeset_required = true;
- hd->connector_id = connector_id;
- hd->enable_vsync_events = false;
- hd->vsync_sequence = 0;
-
- ret = pthread_mutex_init(&hd->flip_lock, NULL);
- if (ret) {
- ALOGE("Failed to initialize flip lock %d", ret);
- return ret;
- }
-
- ret = pthread_cond_init(&hd->flip_cond, NULL);
- if (ret) {
- ALOGE("Failed to intiialize flip condition %d", ret);
- goto err_flip_lock;
- }
-
- ret = sw_sync_timeline_create();
- if (ret < 0) {
- ALOGE("Failed to create sw sync timeline %d", ret);
- goto err_flip_cond;
- }
- hd->timeline_fd = ret;
-
- /*
- * Initialize timeline_next to 1, because point 0 will be the very first
- * set operation. Since we increment every time set() is called,
- * initializing to 0 would cause an off-by-one error where
- * surfaceflinger would composite on the front buffer.
- */
- hd->timeline_next = 1;
-
- ret = hwc_set_initial_config(hd);
- if (ret) {
- ALOGE("Failed to set initial config for d=%d ret=%d", display,
- ret);
- goto err_sync_timeline;
- }
-
- ret = hwc_initialize_worker(&hd->set_worker, hwc_set_worker, hd);
- if (ret) {
- ALOGE("Failed to create set worker %d\n", ret);
- goto err_sync_timeline;
- }
-
- return 0;
-
-err_sync_timeline:
- close(hd->timeline_fd);
-
-err_flip_cond:
- pthread_cond_destroy(&hd->flip_cond);
-
-err_flip_lock:
- pthread_mutex_destroy(&hd->flip_lock);
-
- return ret;
+ uint32_t connector_id) {
+ struct hwc_drm_display *hd = NULL;
+ int ret = hwc_get_drm_display(ctx, display, &hd);
+ if (ret)
+ return ret;
+
+ hd->ctx = ctx;
+ hd->display = display;
+ hd->active_pipe = -1;
+ hd->initial_modeset_required = true;
+ hd->connector_id = connector_id;
+ hd->enable_vsync_events = false;
+ hd->vsync_sequence = 0;
+
+ ret = pthread_mutex_init(&hd->flip_lock, NULL);
+ if (ret) {
+ ALOGE("Failed to initialize flip lock %d", ret);
+ return ret;
+ }
+
+ ret = pthread_cond_init(&hd->flip_cond, NULL);
+ if (ret) {
+ ALOGE("Failed to intiialize flip condition %d", ret);
+ pthread_mutex_destroy(&hd->flip_lock);
+ return ret;
+ }
+
+ ret = sw_sync_timeline_create();
+ if (ret < 0) {
+ ALOGE("Failed to create sw sync timeline %d", ret);
+ pthread_cond_destroy(&hd->flip_cond);
+ pthread_mutex_destroy(&hd->flip_lock);
+ return ret;
+ }
+ hd->timeline_fd = ret;
+
+ /*
+ * Initialize timeline_next to 1, because point 0 will be the very first
+ * set operation. Since we increment every time set() is called,
+ * initializing to 0 would cause an off-by-one error where
+ * surfaceflinger would composite on the front buffer.
+ */
+ hd->timeline_next = 1;
+
+ ret = hwc_set_initial_config(hd);
+ if (ret) {
+ ALOGE("Failed to set initial config for d=%d ret=%d", display, ret);
+ close(hd->timeline_fd);
+ pthread_cond_destroy(&hd->flip_cond);
+ pthread_mutex_destroy(&hd->flip_lock);
+ return ret;
+ }
+
+ ret = hwc_initialize_worker(&hd->set_worker, hwc_set_worker, hd);
+ if (ret) {
+ ALOGE("Failed to create set worker %d\n", ret);
+ close(hd->timeline_fd);
+ pthread_cond_destroy(&hd->flip_cond);
+ pthread_mutex_destroy(&hd->flip_lock);
+ return ret;
+ }
+
+ return 0;
}
-static int hwc_enumerate_displays(struct hwc_context_t *ctx)
-{
- struct hwc_drm_display *panel_hd;
- drmModeResPtr res;
- drmModeConnectorPtr *conn_list;
- int ret = 0, i, j;
-
- ret = hwc_initialize_worker(&ctx->event_worker, hwc_event_worker, ctx);
- if (ret) {
- ALOGE("Failed to create event worker %d\n", ret);
- return ret;
- }
-
- res = drmModeGetResources(ctx->fd);
- if (!res) {
- ALOGE("Failed to get drm resources");
- return -ENODEV;
- }
-
- conn_list = (drmModeConnector **)calloc(res->count_connectors,
- sizeof(*conn_list));
- if (!conn_list) {
- ALOGE("Failed to allocate connector list");
- ret = -ENOMEM;
- goto out;
- }
-
- for (i = 0; i < res->count_connectors; i++) {
- conn_list[i] = drmModeGetConnector(ctx->fd, res->connectors[i]);
- if (!conn_list[i]) {
- ALOGE("Failed to get connector %d", res->connectors[i]);
- ret = -ENODEV;
- goto out;
- }
- }
-
- ctx->num_displays = 0;
-
- /* Find a connected, panel type connector for display 0 */
- for (i = 0; i < res->count_connectors; i++) {
- drmModeConnectorPtr c = conn_list[i];
-
- for (j = 0; j < ARRAY_SIZE(panel_types); j++) {
- if (c->connector_type == panel_types[j] &&
- c->connection == DRM_MODE_CONNECTED)
- break;
- }
- if (j == ARRAY_SIZE(panel_types))
- continue;
-
- hwc_initialize_display(ctx, ctx->num_displays, c->connector_id);
- ctx->num_displays++;
- break;
- }
-
- ret = hwc_get_drm_display(ctx, 0, &panel_hd);
- if (ret)
- goto out;
-
- /* Fill in the other displays */
- for (i = 0; i < res->count_connectors; i++) {
- drmModeConnectorPtr c = conn_list[i];
-
- if (panel_hd->connector_id == c->connector_id)
- continue;
-
- hwc_initialize_display(ctx, ctx->num_displays, c->connector_id);
- ctx->num_displays++;
- }
-
-out:
- for (i = 0; i < res->count_connectors; i++) {
- if (conn_list[i])
- drmModeFreeConnector(conn_list[i]);
- }
- free(conn_list);
-
- if (res)
- drmModeFreeResources(res);
-
- if (ret)
- hwc_destroy_worker(&ctx->event_worker);
-
- return ret;
+static void hwc_free_conn_list(drmModeConnectorPtr *conn_list, int num_conn) {
+ for (int i = 0; i < num_conn; ++i) {
+ if (conn_list[i])
+ drmModeFreeConnector(conn_list[i]);
+ }
+ free(conn_list);
}
-static int hwc_device_open(const struct hw_module_t* module, const char* name,
- struct hw_device_t** dev)
-{
- int ret = 0;
- struct hwc_context_t *ctx;
- char path[PROPERTY_VALUE_MAX];
-
- if (strcmp(name, HWC_HARDWARE_COMPOSER)) {
- ALOGE("Invalid module name- %s", name);
- return -EINVAL;
- }
-
- ctx = new hwc_context_t();
- if (!ctx) {
- ALOGE("Failed to allocate hwc context");
- return -ENOMEM;
- }
-
- ret = hwc_import_init(&ctx->import_ctx);
- if (ret) {
- ALOGE("Failed to initialize import context");
- goto out;
- }
-
- property_get("hwc.drm.device", path, HWCOMPOSER_DRM_DEVICE);
- /* TODO: Use drmOpenControl here instead */
- ctx->fd = open(path, O_RDWR);
- if (ctx->fd < 0) {
- ALOGE("Failed to open dri- %s", strerror(-errno));
- goto out;
- }
-
- ret = hwc_enumerate_displays(ctx);
- if (ret) {
- ALOGE("Failed to enumerate displays: %s", strerror(ret));
- goto out;
- }
-
- ctx->device.common.tag = HARDWARE_DEVICE_TAG;
- ctx->device.common.version = HWC_DEVICE_API_VERSION_1_4;
- ctx->device.common.module = const_cast<hw_module_t*>(module);
- ctx->device.common.close = hwc_device_close;
-
- ctx->device.prepare = hwc_prepare;
- ctx->device.set = hwc_set;
- ctx->device.eventControl = hwc_event_control;
- ctx->device.setPowerMode = hwc_set_power_mode;
- ctx->device.query = hwc_query;
- ctx->device.registerProcs = hwc_register_procs;
- ctx->device.getDisplayConfigs = hwc_get_display_configs;
- ctx->device.getDisplayAttributes = hwc_get_display_attributes;
- ctx->device.getActiveConfig = hwc_get_active_config;
- ctx->device.setActiveConfig = hwc_set_active_config;
- ctx->device.setCursorPositionAsync = NULL; /* TODO: Add cursor */
-
- *dev = &ctx->device.common;
-
- return 0;
-out:
- if (ctx->fd >= 0)
- close(ctx->fd);
-
- delete ctx;
- return ret;
+static int hwc_enumerate_displays(struct hwc_context_t *ctx) {
+ drmModeResPtr res = drmModeGetResources(ctx->fd);
+ if (!res) {
+ ALOGE("Failed to get drm resources");
+ return -ENODEV;
+ }
+ int num_connectors = res->count_connectors;
+
+ drmModeConnectorPtr *conn_list =
+ (drmModeConnector **)calloc(num_connectors, sizeof(*conn_list));
+ if (!conn_list) {
+ ALOGE("Failed to allocate connector list");
+ drmModeFreeResources(res);
+ return -ENOMEM;
+ }
+
+ for (int i = 0; i < num_connectors; ++i) {
+ conn_list[i] = drmModeGetConnector(ctx->fd, res->connectors[i]);
+ if (!conn_list[i]) {
+ ALOGE("Failed to get connector %d", res->connectors[i]);
+ drmModeFreeResources(res);
+ return -ENODEV;
+ }
+ }
+ drmModeFreeResources(res);
+
+ ctx->num_displays = 0;
+
+ /* Find a connected, panel type connector for display 0 */
+ for (int i = 0; i < num_connectors; ++i) {
+ drmModeConnectorPtr c = conn_list[i];
+
+ int j;
+ for (j = 0; j < ARRAY_SIZE(panel_types); ++j) {
+ if (c->connector_type == panel_types[j] &&
+ c->connection == DRM_MODE_CONNECTED)
+ break;
+ }
+ if (j == ARRAY_SIZE(panel_types))
+ continue;
+
+ hwc_initialize_display(ctx, ctx->num_displays, c->connector_id);
+ ++ctx->num_displays;
+ break;
+ }
+
+ struct hwc_drm_display *panel_hd;
+ int ret = hwc_get_drm_display(ctx, 0, &panel_hd);
+ if (ret) {
+ hwc_free_conn_list(conn_list, num_connectors);
+ return ret;
+ }
+
+ /* Fill in the other displays */
+ for (int i = 0; i < num_connectors; ++i) {
+ drmModeConnectorPtr c = conn_list[i];
+
+ if (panel_hd->connector_id == c->connector_id)
+ continue;
+
+ hwc_initialize_display(ctx, ctx->num_displays, c->connector_id);
+ ++ctx->num_displays;
+ }
+ hwc_free_conn_list(conn_list, num_connectors);
+
+ ret = hwc_initialize_worker(&ctx->event_worker, hwc_event_worker, ctx);
+ if (ret) {
+ ALOGE("Failed to create event worker %d\n", ret);
+ return ret;
+ }
+
+ return 0;
}
-static struct hw_module_methods_t hwc_module_methods = {
- open: hwc_device_open
-};
+static int hwc_device_open(const struct hw_module_t *module, const char *name,
+ struct hw_device_t **dev) {
+ if (strcmp(name, HWC_HARDWARE_COMPOSER)) {
+ ALOGE("Invalid module name- %s", name);
+ return -EINVAL;
+ }
+
+ struct hwc_context_t *ctx = new hwc_context_t();
+ if (!ctx) {
+ ALOGE("Failed to allocate hwc context");
+ return -ENOMEM;
+ }
+
+ int ret = hwc_import_init(&ctx->import_ctx);
+ if (ret) {
+ ALOGE("Failed to initialize import context");
+ delete ctx;
+ return ret;
+ }
+
+ char path[PROPERTY_VALUE_MAX];
+ property_get("hwc.drm.device", path, HWCOMPOSER_DRM_DEVICE);
+ /* TODO: Use drmOpenControl here instead */
+ ctx->fd = open(path, O_RDWR);
+ if (ctx->fd < 0) {
+ ALOGE("Failed to open dri- %s", strerror(-errno));
+ delete ctx;
+ return -ENOENT;
+ }
+
+ ret = hwc_enumerate_displays(ctx);
+ if (ret) {
+ ALOGE("Failed to enumerate displays: %s", strerror(ret));
+ close(ctx->fd);
+ delete ctx;
+ return ret;
+ }
+
+ ctx->device.common.tag = HARDWARE_DEVICE_TAG;
+ ctx->device.common.version = HWC_DEVICE_API_VERSION_1_4;
+ ctx->device.common.module = const_cast<hw_module_t *>(module);
+ ctx->device.common.close = hwc_device_close;
+
+ ctx->device.prepare = hwc_prepare;
+ ctx->device.set = hwc_set;
+ ctx->device.eventControl = hwc_event_control;
+ ctx->device.setPowerMode = hwc_set_power_mode;
+ ctx->device.query = hwc_query;
+ ctx->device.registerProcs = hwc_register_procs;
+ ctx->device.getDisplayConfigs = hwc_get_display_configs;
+ ctx->device.getDisplayAttributes = hwc_get_display_attributes;
+ ctx->device.getActiveConfig = hwc_get_active_config;
+ ctx->device.setActiveConfig = hwc_set_active_config;
+ ctx->device.setCursorPositionAsync = NULL; /* TODO: Add cursor */
+
+ *dev = &ctx->device.common;
+
+ return 0;
+}
+
+static struct hw_module_methods_t hwc_module_methods = {open : hwc_device_open};
hwc_module_t HAL_MODULE_INFO_SYM = {
- common: {
- tag: HARDWARE_MODULE_TAG,
- version_major: 1,
- version_minor: 0,
- id: HWC_HARDWARE_MODULE_ID,
- name: "DRM hwcomposer module",
- author: "The Android Open Source Project",
- methods: &hwc_module_methods,
- dso: NULL,
- reserved: { 0 },
- }
+ common : {
+ tag : HARDWARE_MODULE_TAG,
+ version_major : 1,
+ version_minor : 0,
+ id : HWC_HARDWARE_MODULE_ID,
+ name : "DRM hwcomposer module",
+ author : "The Android Open Source Project",
+ methods : &hwc_module_methods,
+ dso : NULL,
+ reserved : {0},
+ }
};
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