/* * Copyright © 2008-2011 Kristian Høgsberg * Copyright © 2011 Intel Corporation * * Permission to use, copy, modify, distribute, and sell this software and * its documentation for any purpose is hereby granted without fee, provided * that the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the name of the copyright holders not be used in * advertising or publicity pertaining to distribution of the software * without specific, written prior permission. The copyright holders make * no representations about the suitability of this software for any * purpose. It is provided "as is" without express or implied warranty. * * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include "compositor.h" #include "gl-renderer.h" #include "evdev.h" #include "launcher-util.h" static int option_current_mode = 0; static char *output_name; static char *output_mode; static char *output_transform; static struct wl_list configured_output_list; enum output_config { OUTPUT_CONFIG_INVALID = 0, OUTPUT_CONFIG_OFF, OUTPUT_CONFIG_PREFERRED, OUTPUT_CONFIG_CURRENT, OUTPUT_CONFIG_MODE, OUTPUT_CONFIG_MODELINE }; struct drm_configured_output { char *name; char *mode; uint32_t transform; int32_t width, height; drmModeModeInfo crtc_mode; enum output_config config; struct wl_list link; }; struct drm_compositor { struct weston_compositor base; struct udev *udev; struct wl_event_source *drm_source; struct udev_monitor *udev_monitor; struct wl_event_source *udev_drm_source; struct { int id; int fd; } drm; struct gbm_device *gbm; uint32_t *crtcs; int num_crtcs; uint32_t crtc_allocator; uint32_t connector_allocator; struct tty *tty; /* we need these parameters in order to not fail drmModeAddFB2() * due to out of bounds dimensions, and then mistakenly set * sprites_are_broken: */ uint32_t min_width, max_width; uint32_t min_height, max_height; int no_addfb2; struct wl_list sprite_list; int sprites_are_broken; int sprites_hidden; int cursors_are_broken; uint32_t prev_state; }; struct drm_mode { struct weston_mode base; drmModeModeInfo mode_info; }; struct drm_output; struct drm_fb { struct gbm_bo *bo; struct drm_output *output; uint32_t fb_id; int is_client_buffer; struct weston_buffer_reference buffer_ref; }; struct drm_output { struct weston_output base; char *name; uint32_t crtc_id; int pipe; uint32_t connector_id; drmModeCrtcPtr original_crtc; int vblank_pending; int page_flip_pending; struct gbm_surface *surface; struct gbm_bo *cursor_bo[2]; struct weston_plane cursor_plane; struct weston_plane fb_plane; struct weston_surface *cursor_surface; int current_cursor; struct drm_fb *current, *next; struct backlight *backlight; }; /* * An output has a primary display plane plus zero or more sprites for * blending display contents. */ struct drm_sprite { struct wl_list link; struct weston_plane plane; struct drm_fb *current, *next; struct drm_output *output; struct drm_compositor *compositor; uint32_t possible_crtcs; uint32_t plane_id; uint32_t count_formats; int32_t src_x, src_y; uint32_t src_w, src_h; uint32_t dest_x, dest_y; uint32_t dest_w, dest_h; uint32_t formats[]; }; struct drm_seat { struct weston_seat base; struct wl_list devices_list; struct udev_monitor *udev_monitor; struct wl_event_source *udev_monitor_source; char *seat_id; }; static void drm_output_set_cursor(struct drm_output *output); static int drm_sprite_crtc_supported(struct weston_output *output_base, uint32_t supported) { struct weston_compositor *ec = output_base->compositor; struct drm_compositor *c =(struct drm_compositor *) ec; struct drm_output *output = (struct drm_output *) output_base; int crtc; for (crtc = 0; crtc < c->num_crtcs; crtc++) { if (c->crtcs[crtc] != output->crtc_id) continue; if (supported & (1 << crtc)) return -1; } return 0; } static void drm_fb_destroy_callback(struct gbm_bo *bo, void *data) { struct drm_fb *fb = data; struct gbm_device *gbm = gbm_bo_get_device(bo); if (fb->fb_id) drmModeRmFB(gbm_device_get_fd(gbm), fb->fb_id); weston_buffer_reference(&fb->buffer_ref, NULL); free(data); } static struct drm_fb * drm_fb_get_from_bo(struct gbm_bo *bo, struct drm_compositor *compositor, uint32_t format) { struct drm_fb *fb = gbm_bo_get_user_data(bo); uint32_t width, height, stride, handle; uint32_t handles[4], pitches[4], offsets[4]; int ret; if (fb) return fb; fb = malloc(sizeof *fb); fb->bo = bo; fb->is_client_buffer = 0; fb->buffer_ref.buffer = NULL; width = gbm_bo_get_width(bo); height = gbm_bo_get_height(bo); stride = gbm_bo_get_stride(bo); handle = gbm_bo_get_handle(bo).u32; if (compositor->min_width > width || width > compositor->max_width || compositor->min_height > height || height > compositor->max_height) { weston_log("bo geometry out of bounds\n"); goto err_free; } ret = -1; if (format && !compositor->no_addfb2) { handles[0] = handle; pitches[0] = stride; offsets[0] = 0; ret = drmModeAddFB2(compositor->drm.fd, width, height, format, handles, pitches, offsets, &fb->fb_id, 0); if (ret) { weston_log("addfb2 failed: %m\n"); compositor->no_addfb2 = 1; compositor->sprites_are_broken = 1; } } if (ret) ret = drmModeAddFB(compositor->drm.fd, width, height, 24, 32, stride, handle, &fb->fb_id); if (ret) { weston_log("failed to create kms fb: %m\n"); goto err_free; } gbm_bo_set_user_data(bo, fb, drm_fb_destroy_callback); return fb; err_free: free(fb); return NULL; } static void drm_fb_set_buffer(struct drm_fb *fb, struct wl_buffer *buffer) { assert(fb->buffer_ref.buffer == NULL); fb->is_client_buffer = 1; weston_buffer_reference(&fb->buffer_ref, buffer); } static uint32_t drm_output_check_scanout_format(struct drm_output *output, struct weston_surface *es, struct gbm_bo *bo) { uint32_t format; pixman_region32_t r; format = gbm_bo_get_format(bo); switch (format) { case GBM_FORMAT_XRGB8888: return format; case GBM_FORMAT_ARGB8888: /* We can only scanout an ARGB buffer if the surface's * opaque region covers the whole output */ pixman_region32_init(&r); pixman_region32_subtract(&r, &output->base.region, &es->opaque); if (!pixman_region32_not_empty(&r)) format = GBM_FORMAT_XRGB8888; else format = 0; pixman_region32_fini(&r); return format; default: return 0; } } static struct weston_plane * drm_output_prepare_scanout_surface(struct weston_output *_output, struct weston_surface *es) { struct drm_output *output = (struct drm_output *) _output; struct drm_compositor *c = (struct drm_compositor *) output->base.compositor; struct wl_buffer *buffer = es->buffer_ref.buffer; struct gbm_bo *bo; uint32_t format; if (es->geometry.x != output->base.x || es->geometry.y != output->base.y || buffer == NULL || buffer->width != output->base.current->width || buffer->height != output->base.current->height || output->base.transform != es->buffer_transform || es->transform.enabled) return NULL; bo = gbm_bo_import(c->gbm, GBM_BO_IMPORT_WL_BUFFER, buffer, GBM_BO_USE_SCANOUT); /* Unable to use the buffer for scanout */ if (!bo) return NULL; format = drm_output_check_scanout_format(output, es, bo); if (format == 0) { gbm_bo_destroy(bo); return NULL; } output->next = drm_fb_get_from_bo(bo, c, format); if (!output->next) { gbm_bo_destroy(bo); return NULL; } drm_fb_set_buffer(output->next, buffer); return &output->fb_plane; } static void drm_output_render(struct drm_output *output, pixman_region32_t *damage) { struct drm_compositor *c = (struct drm_compositor *) output->base.compositor; struct gbm_bo *bo; c->base.renderer->repaint_output(&output->base, damage); pixman_region32_subtract(&c->base.primary_plane.damage, &c->base.primary_plane.damage, damage); bo = gbm_surface_lock_front_buffer(output->surface); if (!bo) { weston_log("failed to lock front buffer: %m\n"); return; } output->next = drm_fb_get_from_bo(bo, c, GBM_FORMAT_XRGB8888); if (!output->next) { weston_log("failed to get drm_fb for bo\n"); gbm_surface_release_buffer(output->surface, bo); return; } } static void drm_output_repaint(struct weston_output *output_base, pixman_region32_t *damage) { struct drm_output *output = (struct drm_output *) output_base; struct drm_compositor *compositor = (struct drm_compositor *) output->base.compositor; struct drm_sprite *s; struct drm_mode *mode; int ret = 0; if (!output->next) drm_output_render(output, damage); if (!output->next) return; mode = container_of(output->base.current, struct drm_mode, base); if (!output->current) { ret = drmModeSetCrtc(compositor->drm.fd, output->crtc_id, output->next->fb_id, 0, 0, &output->connector_id, 1, &mode->mode_info); if (ret) { weston_log("set mode failed: %m\n"); return; } } if (drmModePageFlip(compositor->drm.fd, output->crtc_id, output->next->fb_id, DRM_MODE_PAGE_FLIP_EVENT, output) < 0) { weston_log("queueing pageflip failed: %m\n"); return; } output->page_flip_pending = 1; drm_output_set_cursor(output); /* * Now, update all the sprite surfaces */ wl_list_for_each(s, &compositor->sprite_list, link) { uint32_t flags = 0, fb_id = 0; drmVBlank vbl = { .request.type = DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT, .request.sequence = 1, }; if ((!s->current && !s->next) || !drm_sprite_crtc_supported(output_base, s->possible_crtcs)) continue; if (s->next && !compositor->sprites_hidden) fb_id = s->next->fb_id; ret = drmModeSetPlane(compositor->drm.fd, s->plane_id, output->crtc_id, fb_id, flags, s->dest_x, s->dest_y, s->dest_w, s->dest_h, s->src_x, s->src_y, s->src_w, s->src_h); if (ret) weston_log("setplane failed: %d: %s\n", ret, strerror(errno)); if (output->pipe > 0) vbl.request.type |= DRM_VBLANK_SECONDARY; /* * Queue a vblank signal so we know when the surface * becomes active on the display or has been replaced. */ vbl.request.signal = (unsigned long)s; ret = drmWaitVBlank(compositor->drm.fd, &vbl); if (ret) { weston_log("vblank event request failed: %d: %s\n", ret, strerror(errno)); } s->output = output; output->vblank_pending = 1; } return; } static void vblank_handler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, void *data) { struct drm_sprite *s = (struct drm_sprite *)data; struct drm_output *output = s->output; uint32_t msecs; output->vblank_pending = 0; if (s->current) gbm_bo_destroy(s->current->bo); s->current = s->next; s->next = NULL; if (!output->page_flip_pending) { msecs = sec * 1000 + usec / 1000; weston_output_finish_frame(&output->base, msecs); } } static void page_flip_handler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, void *data) { struct drm_output *output = (struct drm_output *) data; uint32_t msecs; output->page_flip_pending = 0; if (output->current) { if (output->current->is_client_buffer) gbm_bo_destroy(output->current->bo); else gbm_surface_release_buffer(output->surface, output->current->bo); } output->current = output->next; output->next = NULL; if (!output->vblank_pending) { msecs = sec * 1000 + usec / 1000; weston_output_finish_frame(&output->base, msecs); } } static uint32_t drm_output_check_sprite_format(struct drm_sprite *s, struct weston_surface *es, struct gbm_bo *bo) { uint32_t i, format; format = gbm_bo_get_format(bo); if (format == GBM_FORMAT_ARGB8888) { pixman_region32_t r; pixman_region32_init(&r); pixman_region32_subtract(&r, &es->transform.boundingbox, &es->transform.opaque); if (!pixman_region32_not_empty(&r)) format = GBM_FORMAT_XRGB8888; pixman_region32_fini(&r); } for (i = 0; i < s->count_formats; i++) if (s->formats[i] == format) return format; return 0; } static int drm_surface_transform_supported(struct weston_surface *es) { struct weston_matrix *matrix = &es->transform.matrix; int i; if (!es->transform.enabled) return 1; for (i = 0; i < 16; i++) { switch (i) { case 10: case 15: if (matrix->d[i] != 1.0) return 0; break; case 0: case 5: case 12: case 13: break; default: if (matrix->d[i] != 0.0) return 0; break; } } return 1; } static struct weston_plane * drm_output_prepare_overlay_surface(struct weston_output *output_base, struct weston_surface *es) { struct weston_compositor *ec = output_base->compositor; struct drm_compositor *c =(struct drm_compositor *) ec; struct drm_sprite *s; int found = 0; struct gbm_bo *bo; pixman_region32_t dest_rect, src_rect; pixman_box32_t *box, tbox; uint32_t format; wl_fixed_t sx1, sy1, sx2, sy2; if (es->buffer_transform != output_base->transform) return NULL; if (c->sprites_are_broken) return NULL; if (es->output_mask != (1u << output_base->id)) return NULL; if (es->buffer_ref.buffer == NULL) return NULL; if (es->alpha != 1.0f) return NULL; if (wl_buffer_is_shm(es->buffer_ref.buffer)) return NULL; if (!drm_surface_transform_supported(es)) return NULL; wl_list_for_each(s, &c->sprite_list, link) { if (!drm_sprite_crtc_supported(output_base, s->possible_crtcs)) continue; if (!s->next) { found = 1; break; } } /* No sprites available */ if (!found) return NULL; bo = gbm_bo_import(c->gbm, GBM_BO_IMPORT_WL_BUFFER, es->buffer_ref.buffer, GBM_BO_USE_SCANOUT); if (!bo) return NULL; format = drm_output_check_sprite_format(s, es, bo); if (format == 0) { gbm_bo_destroy(bo); return NULL; } s->next = drm_fb_get_from_bo(bo, c, format); if (!s->next) { gbm_bo_destroy(bo); return NULL; } drm_fb_set_buffer(s->next, es->buffer_ref.buffer); box = pixman_region32_extents(&es->transform.boundingbox); s->plane.x = box->x1; s->plane.y = box->y1; /* * Calculate the source & dest rects properly based on actual * position (note the caller has called weston_surface_update_transform() * for us already). */ pixman_region32_init(&dest_rect); pixman_region32_intersect(&dest_rect, &es->transform.boundingbox, &output_base->region); pixman_region32_translate(&dest_rect, -output_base->x, -output_base->y); box = pixman_region32_extents(&dest_rect); tbox = weston_transformed_rect(output_base->width, output_base->height, output_base->transform, *box); s->dest_x = tbox.x1; s->dest_y = tbox.y1; s->dest_w = tbox.x2 - tbox.x1; s->dest_h = tbox.y2 - tbox.y1; pixman_region32_fini(&dest_rect); pixman_region32_init(&src_rect); pixman_region32_intersect(&src_rect, &es->transform.boundingbox, &output_base->region); box = pixman_region32_extents(&src_rect); weston_surface_from_global_fixed(es, wl_fixed_from_int(box->x1), wl_fixed_from_int(box->y1), &sx1, &sy1); weston_surface_from_global_fixed(es, wl_fixed_from_int(box->x2), wl_fixed_from_int(box->y2), &sx2, &sy2); if (sx1 < 0) sx1 = 0; if (sy1 < 0) sy1 = 0; if (sx2 > wl_fixed_from_int(es->geometry.width)) sx2 = wl_fixed_from_int(es->geometry.width); if (sy2 > wl_fixed_from_int(es->geometry.height)) sy2 = wl_fixed_from_int(es->geometry.height); tbox.x1 = sx1; tbox.y1 = sy1; tbox.x2 = sx2; tbox.y2 = sy2; tbox = weston_transformed_rect(wl_fixed_from_int(es->geometry.width), wl_fixed_from_int(es->geometry.height), es->buffer_transform, tbox); s->src_x = tbox.x1 << 8; s->src_y = tbox.y1 << 8; s->src_w = (tbox.x2 - tbox.x1) << 8; s->src_h = (tbox.y2 - tbox.y1) << 8; pixman_region32_fini(&src_rect); return &s->plane; } static struct weston_plane * drm_output_prepare_cursor_surface(struct weston_output *output_base, struct weston_surface *es) { struct drm_compositor *c = (struct drm_compositor *) output_base->compositor; struct drm_output *output = (struct drm_output *) output_base; if (output->base.transform != WL_OUTPUT_TRANSFORM_NORMAL) return NULL; if (output->cursor_surface) return NULL; if (es->output_mask != (1u << output_base->id)) return NULL; if (c->cursors_are_broken) return NULL; if (es->buffer_ref.buffer == NULL || !wl_buffer_is_shm(es->buffer_ref.buffer) || es->geometry.width > 64 || es->geometry.height > 64) return NULL; output->cursor_surface = es; return &output->cursor_plane; } static void drm_output_set_cursor(struct drm_output *output) { struct weston_surface *es = output->cursor_surface; struct drm_compositor *c = (struct drm_compositor *) output->base.compositor; EGLint handle, stride; struct gbm_bo *bo; uint32_t buf[64 * 64]; unsigned char *s; int i, x, y; output->cursor_surface = NULL; if (es == NULL) { drmModeSetCursor(c->drm.fd, output->crtc_id, 0, 0, 0); return; } if (es->buffer_ref.buffer && pixman_region32_not_empty(&output->cursor_plane.damage)) { pixman_region32_fini(&output->cursor_plane.damage); pixman_region32_init(&output->cursor_plane.damage); output->current_cursor ^= 1; bo = output->cursor_bo[output->current_cursor]; memset(buf, 0, sizeof buf); stride = wl_shm_buffer_get_stride(es->buffer_ref.buffer); s = wl_shm_buffer_get_data(es->buffer_ref.buffer); for (i = 0; i < es->geometry.height; i++) memcpy(buf + i * 64, s + i * stride, es->geometry.width * 4); if (gbm_bo_write(bo, buf, sizeof buf) < 0) weston_log("failed update cursor: %m\n"); handle = gbm_bo_get_handle(bo).s32; if (drmModeSetCursor(c->drm.fd, output->crtc_id, handle, 64, 64)) { weston_log("failed to set cursor: %m\n"); c->cursors_are_broken = 1; } } x = es->geometry.x - output->base.x; y = es->geometry.y - output->base.y; if (output->cursor_plane.x != x || output->cursor_plane.y != y) { if (drmModeMoveCursor(c->drm.fd, output->crtc_id, x, y)) { weston_log("failed to move cursor: %m\n"); c->cursors_are_broken = 1; } output->cursor_plane.x = x; output->cursor_plane.y = y; } } static void drm_assign_planes(struct weston_output *output) { struct drm_compositor *c = (struct drm_compositor *) output->compositor; struct drm_output *drm_output = (struct drm_output *) output; struct drm_sprite *s; struct weston_surface *es, *next; pixman_region32_t overlap, surface_overlap; struct weston_plane *primary, *next_plane; /* Reset the opaque region of the planes */ pixman_region32_fini(&drm_output->cursor_plane.opaque); pixman_region32_init(&drm_output->cursor_plane.opaque); pixman_region32_fini(&drm_output->fb_plane.opaque); pixman_region32_init(&drm_output->fb_plane.opaque); wl_list_for_each (s, &c->sprite_list, link) { if (!drm_sprite_crtc_supported(output, s->possible_crtcs)) continue; pixman_region32_fini(&s->plane.opaque); pixman_region32_init(&s->plane.opaque); } /* * Find a surface for each sprite in the output using some heuristics: * 1) size * 2) frequency of update * 3) opacity (though some hw might support alpha blending) * 4) clipping (this can be fixed with color keys) * * The idea is to save on blitting since this should save power. * If we can get a large video surface on the sprite for example, * the main display surface may not need to update at all, and * the client buffer can be used directly for the sprite surface * as we do for flipping full screen surfaces. */ pixman_region32_init(&overlap); primary = &c->base.primary_plane; wl_list_for_each_safe(es, next, &c->base.surface_list, link) { /* test whether this buffer can ever go into a plane: * non-shm, or small enough to be a cursor */ if ((es->buffer_ref.buffer && !wl_buffer_is_shm(es->buffer_ref.buffer)) || (es->geometry.width <= 64 && es->geometry.height <= 64)) es->keep_buffer = 1; else es->keep_buffer = 0; pixman_region32_init(&surface_overlap); pixman_region32_intersect(&surface_overlap, &overlap, &es->transform.boundingbox); next_plane = NULL; if (pixman_region32_not_empty(&surface_overlap)) next_plane = primary; if (next_plane == NULL) next_plane = drm_output_prepare_cursor_surface(output, es); if (next_plane == NULL) next_plane = drm_output_prepare_scanout_surface(output, es); if (next_plane == NULL) next_plane = drm_output_prepare_overlay_surface(output, es); if (next_plane == NULL) next_plane = primary; weston_surface_move_to_plane(es, next_plane); if (next_plane == primary) pixman_region32_union(&overlap, &overlap, &es->transform.boundingbox); pixman_region32_fini(&surface_overlap); } pixman_region32_fini(&overlap); } static void drm_output_destroy(struct weston_output *output_base) { struct drm_output *output = (struct drm_output *) output_base; struct drm_compositor *c = (struct drm_compositor *) output->base.compositor; drmModeCrtcPtr origcrtc = output->original_crtc; if (output->backlight) backlight_destroy(output->backlight); /* Turn off hardware cursor */ drmModeSetCursor(c->drm.fd, output->crtc_id, 0, 0, 0); /* Restore original CRTC state */ drmModeSetCrtc(c->drm.fd, origcrtc->crtc_id, origcrtc->buffer_id, origcrtc->x, origcrtc->y, &output->connector_id, 1, &origcrtc->mode); drmModeFreeCrtc(origcrtc); c->crtc_allocator &= ~(1 << output->crtc_id); c->connector_allocator &= ~(1 << output->connector_id); gl_renderer_output_destroy(output_base); gbm_surface_destroy(output->surface); weston_plane_release(&output->fb_plane); weston_plane_release(&output->cursor_plane); weston_output_destroy(&output->base); wl_list_remove(&output->base.link); free(output->name); free(output); } static struct drm_mode * choose_mode (struct drm_output *output, struct weston_mode *target_mode) { struct drm_mode *tmp_mode = NULL, *mode; if (output->base.current->width == target_mode->width && output->base.current->height == target_mode->height && (output->base.current->refresh == target_mode->refresh || target_mode->refresh == 0)) return (struct drm_mode *)output->base.current; wl_list_for_each(mode, &output->base.mode_list, base.link) { if (mode->mode_info.hdisplay == target_mode->width && mode->mode_info.vdisplay == target_mode->height) { if (mode->mode_info.vrefresh == target_mode->refresh || target_mode->refresh == 0) { return mode; } else if (!tmp_mode) tmp_mode = mode; } } return tmp_mode; } static int drm_output_switch_mode(struct weston_output *output_base, struct weston_mode *mode) { struct drm_output *output; struct drm_mode *drm_mode; int ret; struct drm_compositor *ec; struct gbm_surface *surface; if (output_base == NULL) { weston_log("output is NULL.\n"); return -1; } if (mode == NULL) { weston_log("mode is NULL.\n"); return -1; } ec = (struct drm_compositor *)output_base->compositor; output = (struct drm_output *)output_base; drm_mode = choose_mode (output, mode); if (!drm_mode) { weston_log("%s, invalid resolution:%dx%d\n", __func__, mode->width, mode->height); return -1; } else if (&drm_mode->base == output->base.current) { return 0; } else if (drm_mode->base.width == output->base.current->width && drm_mode->base.height == output->base.current->height) { /* only change refresh value */ ret = drmModeSetCrtc(ec->drm.fd, output->crtc_id, output->current->fb_id, 0, 0, &output->connector_id, 1, &drm_mode->mode_info); if (ret) { weston_log("failed to set mode (%dx%d) %u Hz\n", drm_mode->base.width, drm_mode->base.height, drm_mode->base.refresh / 1000); ret = -1; } else { output->base.current->flags = 0; output->base.current = &drm_mode->base; drm_mode->base.flags = WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED; ret = 0; } return ret; } drm_mode->base.flags = WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED; surface = gbm_surface_create(ec->gbm, drm_mode->base.width, drm_mode->base.height, GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING); if (!surface) { weston_log("failed to create gbm surface\n"); return -1; } gl_renderer_output_destroy(&output->base); if (gl_renderer_output_create(&output->base, surface) < 0) { weston_log("failed to create renderer output\n"); goto err_gbm; } /* reset rendering stuff. */ if (output->current) { if (output->current->is_client_buffer) gbm_bo_destroy(output->current->bo); else gbm_surface_release_buffer(output->surface, output->current->bo); } output->current = NULL; if (output->next) { if (output->next->is_client_buffer) gbm_bo_destroy(output->next->bo); else gbm_surface_release_buffer(output->surface, output->next->bo); } output->next = NULL; gbm_surface_destroy(output->surface); output->surface = surface; /*update output*/ output->base.current = &drm_mode->base; return 0; err_gbm: gbm_surface_destroy(surface); return -1; } static int on_drm_input(int fd, uint32_t mask, void *data) { drmEventContext evctx; memset(&evctx, 0, sizeof evctx); evctx.version = DRM_EVENT_CONTEXT_VERSION; evctx.page_flip_handler = page_flip_handler; evctx.vblank_handler = vblank_handler; drmHandleEvent(fd, &evctx); return 1; } static int init_egl(struct drm_compositor *ec, struct udev_device *device) { const char *filename, *sysnum; int fd; sysnum = udev_device_get_sysnum(device); if (sysnum) ec->drm.id = atoi(sysnum); if (!sysnum || ec->drm.id < 0) { weston_log("cannot get device sysnum\n"); return -1; } filename = udev_device_get_devnode(device); fd = open(filename, O_RDWR | O_CLOEXEC); if (fd < 0) { /* Probably permissions error */ weston_log("couldn't open %s, skipping\n", udev_device_get_devnode(device)); return -1; } weston_log("using %s\n", filename); ec->drm.fd = fd; ec->gbm = gbm_create_device(ec->drm.fd); if (gl_renderer_create(&ec->base, ec->gbm, gl_renderer_opaque_attribs, NULL) < 0) { gbm_device_destroy(ec->gbm); return -1; } return 0; } static struct drm_mode * drm_output_add_mode(struct drm_output *output, drmModeModeInfo *info) { struct drm_mode *mode; uint64_t refresh; mode = malloc(sizeof *mode); if (mode == NULL) return NULL; mode->base.flags = 0; mode->base.width = info->hdisplay; mode->base.height = info->vdisplay; /* Calculate higher precision (mHz) refresh rate */ refresh = (info->clock * 1000000LL / info->htotal + info->vtotal / 2) / info->vtotal; if (info->flags & DRM_MODE_FLAG_INTERLACE) refresh *= 2; if (info->flags & DRM_MODE_FLAG_DBLSCAN) refresh /= 2; if (info->vscan > 1) refresh /= info->vscan; mode->base.refresh = refresh; mode->mode_info = *info; if (info->type & DRM_MODE_TYPE_PREFERRED) mode->base.flags |= WL_OUTPUT_MODE_PREFERRED; wl_list_insert(output->base.mode_list.prev, &mode->base.link); return mode; } static int drm_subpixel_to_wayland(int drm_value) { switch (drm_value) { default: case DRM_MODE_SUBPIXEL_UNKNOWN: return WL_OUTPUT_SUBPIXEL_UNKNOWN; case DRM_MODE_SUBPIXEL_NONE: return WL_OUTPUT_SUBPIXEL_NONE; case DRM_MODE_SUBPIXEL_HORIZONTAL_RGB: return WL_OUTPUT_SUBPIXEL_HORIZONTAL_RGB; case DRM_MODE_SUBPIXEL_HORIZONTAL_BGR: return WL_OUTPUT_SUBPIXEL_HORIZONTAL_BGR; case DRM_MODE_SUBPIXEL_VERTICAL_RGB: return WL_OUTPUT_SUBPIXEL_VERTICAL_RGB; case DRM_MODE_SUBPIXEL_VERTICAL_BGR: return WL_OUTPUT_SUBPIXEL_VERTICAL_BGR; } } /* returns a value between 0-255 range, where higher is brighter */ static uint32_t drm_get_backlight(struct drm_output *output) { long brightness, max_brightness, norm; brightness = backlight_get_brightness(output->backlight); max_brightness = backlight_get_max_brightness(output->backlight); /* convert it on a scale of 0 to 255 */ norm = (brightness * 255)/(max_brightness); return (uint32_t) norm; } /* values accepted are between 0-255 range */ static void drm_set_backlight(struct weston_output *output_base, uint32_t value) { struct drm_output *output = (struct drm_output *) output_base; long max_brightness, new_brightness; if (!output->backlight) return; if (value > 255) return; max_brightness = backlight_get_max_brightness(output->backlight); /* get denormalized value */ new_brightness = (value * max_brightness) / 255; backlight_set_brightness(output->backlight, new_brightness); } static drmModePropertyPtr drm_get_prop(int fd, drmModeConnectorPtr connector, const char *name) { drmModePropertyPtr props; int i; for (i = 0; i < connector->count_props; i++) { props = drmModeGetProperty(fd, connector->props[i]); if (!props) continue; if (!strcmp(props->name, name)) return props; drmModeFreeProperty(props); } return NULL; } static void drm_set_dpms(struct weston_output *output_base, enum dpms_enum level) { struct drm_output *output = (struct drm_output *) output_base; struct weston_compositor *ec = output_base->compositor; struct drm_compositor *c = (struct drm_compositor *) ec; drmModeConnectorPtr connector; drmModePropertyPtr prop; connector = drmModeGetConnector(c->drm.fd, output->connector_id); if (!connector) return; prop = drm_get_prop(c->drm.fd, connector, "DPMS"); if (!prop) { drmModeFreeConnector(connector); return; } drmModeConnectorSetProperty(c->drm.fd, connector->connector_id, prop->prop_id, level); drmModeFreeProperty(prop); drmModeFreeConnector(connector); } static const char *connector_type_names[] = { "None", "VGA", "DVI", "DVI", "DVI", "Composite", "TV", "LVDS", "CTV", "DIN", "DP", "HDMI", "HDMI", "TV", "eDP", }; static int find_crtc_for_connector(struct drm_compositor *ec, drmModeRes *resources, drmModeConnector *connector) { drmModeEncoder *encoder; uint32_t possible_crtcs; int i, j; for (j = 0; j < connector->count_encoders; j++) { encoder = drmModeGetEncoder(ec->drm.fd, connector->encoders[j]); if (encoder == NULL) { weston_log("Failed to get encoder.\n"); return -1; } possible_crtcs = encoder->possible_crtcs; drmModeFreeEncoder(encoder); for (i = 0; i < resources->count_crtcs; i++) { if (possible_crtcs & (1 << i) && !(ec->crtc_allocator & (1 << resources->crtcs[i]))) return i; } } return -1; } /* Init output state that depends on gl or gbm */ static int drm_output_init_egl(struct drm_output *output, struct drm_compositor *ec) { output->surface = gbm_surface_create(ec->gbm, output->base.current->width, output->base.current->height, GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING); if (!output->surface) { weston_log("failed to create gbm surface\n"); return -1; } if (gl_renderer_output_create(&output->base, output->surface) < 0) { gbm_surface_destroy(output->surface); return -1; } output->cursor_bo[0] = gbm_bo_create(ec->gbm, 64, 64, GBM_FORMAT_ARGB8888, GBM_BO_USE_CURSOR_64X64 | GBM_BO_USE_WRITE); output->cursor_bo[1] = gbm_bo_create(ec->gbm, 64, 64, GBM_FORMAT_ARGB8888, GBM_BO_USE_CURSOR_64X64 | GBM_BO_USE_WRITE); if (output->cursor_bo[0] == NULL || output->cursor_bo[1] == NULL) { weston_log("cursor buffers unavailable, using gl cursors\n"); ec->cursors_are_broken = 1; } return 0; } static int create_output_for_connector(struct drm_compositor *ec, drmModeRes *resources, drmModeConnector *connector, int x, int y, struct udev_device *drm_device) { struct drm_output *output; struct drm_mode *drm_mode, *next, *preferred, *current, *configured; struct weston_mode *m; struct drm_configured_output *o = NULL, *temp; drmModeEncoder *encoder; drmModeModeInfo crtc_mode; drmModeCrtc *crtc; int i; char name[32]; const char *type_name; i = find_crtc_for_connector(ec, resources, connector); if (i < 0) { weston_log("No usable crtc/encoder pair for connector.\n"); return -1; } output = malloc(sizeof *output); if (output == NULL) return -1; memset(output, 0, sizeof *output); output->base.subpixel = drm_subpixel_to_wayland(connector->subpixel); output->base.make = "unknown"; output->base.model = "unknown"; wl_list_init(&output->base.mode_list); if (connector->connector_type < ARRAY_LENGTH(connector_type_names)) type_name = connector_type_names[connector->connector_type]; else type_name = "UNKNOWN"; snprintf(name, 32, "%s%d", type_name, connector->connector_type_id); output->name = strdup(name); output->crtc_id = resources->crtcs[i]; output->pipe = i; ec->crtc_allocator |= (1 << output->crtc_id); output->connector_id = connector->connector_id; ec->connector_allocator |= (1 << output->connector_id); output->original_crtc = drmModeGetCrtc(ec->drm.fd, output->crtc_id); /* Get the current mode on the crtc that's currently driving * this connector. */ encoder = drmModeGetEncoder(ec->drm.fd, connector->encoder_id); memset(&crtc_mode, 0, sizeof crtc_mode); if (encoder != NULL) { crtc = drmModeGetCrtc(ec->drm.fd, encoder->crtc_id); drmModeFreeEncoder(encoder); if (crtc == NULL) goto err_free; if (crtc->mode_valid) crtc_mode = crtc->mode; drmModeFreeCrtc(crtc); } for (i = 0; i < connector->count_modes; i++) { drm_mode = drm_output_add_mode(output, &connector->modes[i]); if (!drm_mode) goto err_free; } preferred = NULL; current = NULL; configured = NULL; wl_list_for_each(temp, &configured_output_list, link) { if (strcmp(temp->name, output->name) == 0) { if (temp->mode) weston_log("%s mode \"%s\" in config\n", temp->name, temp->mode); o = temp; break; } } if (o && o->config == OUTPUT_CONFIG_OFF) { weston_log("Disabling output %s\n", o->name); drmModeSetCrtc(ec->drm.fd, output->crtc_id, 0, 0, 0, 0, 0, NULL); goto err_free; } wl_list_for_each(drm_mode, &output->base.mode_list, base.link) { if (o && o->config == OUTPUT_CONFIG_MODE && o->width == drm_mode->base.width && o->height == drm_mode->base.height) configured = drm_mode; if (!memcmp(&crtc_mode, &drm_mode->mode_info, sizeof crtc_mode)) current = drm_mode; if (drm_mode->base.flags & WL_OUTPUT_MODE_PREFERRED) preferred = drm_mode; } if (o && o->config == OUTPUT_CONFIG_MODELINE) { configured = drm_output_add_mode(output, &o->crtc_mode); if (!configured) goto err_free; current = configured; } if (current == NULL && crtc_mode.clock != 0) { current = drm_output_add_mode(output, &crtc_mode); if (!current) goto err_free; } if (o && o->config == OUTPUT_CONFIG_CURRENT) configured = current; if (option_current_mode && current) output->base.current = ¤t->base; else if (configured) output->base.current = &configured->base; else if (preferred) output->base.current = &preferred->base; else if (current) output->base.current = ¤t->base; if (output->base.current == NULL) { weston_log("no available modes for %s\n", output->name); goto err_free; } output->base.current->flags |= WL_OUTPUT_MODE_CURRENT; weston_output_init(&output->base, &ec->base, x, y, connector->mmWidth, connector->mmHeight, o ? o->transform : WL_OUTPUT_TRANSFORM_NORMAL); if (drm_output_init_egl(output, ec) < 0) { weston_log("Failed to init output gl state\n"); goto err_output; } output->backlight = backlight_init(drm_device, connector->connector_type); if (output->backlight) { output->base.set_backlight = drm_set_backlight; output->base.backlight_current = drm_get_backlight(output); } wl_list_insert(ec->base.output_list.prev, &output->base.link); output->base.origin = output->base.current; output->base.repaint = drm_output_repaint; output->base.destroy = drm_output_destroy; output->base.assign_planes = drm_assign_planes; output->base.set_dpms = drm_set_dpms; output->base.switch_mode = drm_output_switch_mode; weston_plane_init(&output->cursor_plane, 0, 0); weston_plane_init(&output->fb_plane, 0, 0); weston_log("Output %s, (connector %d, crtc %d)\n", output->name, output->connector_id, output->crtc_id); wl_list_for_each(m, &output->base.mode_list, link) weston_log_continue(" mode %dx%d@%.1f%s%s%s\n", m->width, m->height, m->refresh / 1000.0, m->flags & WL_OUTPUT_MODE_PREFERRED ? ", preferred" : "", m->flags & WL_OUTPUT_MODE_CURRENT ? ", current" : "", connector->count_modes == 0 ? ", built-in" : ""); return 0; err_output: weston_output_destroy(&output->base); err_free: wl_list_for_each_safe(drm_mode, next, &output->base.mode_list, base.link) { wl_list_remove(&drm_mode->base.link); free(drm_mode); } drmModeFreeCrtc(output->original_crtc); ec->crtc_allocator &= ~(1 << output->crtc_id); ec->connector_allocator &= ~(1 << output->connector_id); free(output->name); free(output); return -1; } static void create_sprites(struct drm_compositor *ec) { struct drm_sprite *sprite; drmModePlaneRes *plane_res; drmModePlane *plane; uint32_t i; plane_res = drmModeGetPlaneResources(ec->drm.fd); if (!plane_res) { weston_log("failed to get plane resources: %s\n", strerror(errno)); return; } for (i = 0; i < plane_res->count_planes; i++) { plane = drmModeGetPlane(ec->drm.fd, plane_res->planes[i]); if (!plane) continue; sprite = malloc(sizeof(*sprite) + ((sizeof(uint32_t)) * plane->count_formats)); if (!sprite) { weston_log("%s: out of memory\n", __func__); free(plane); continue; } memset(sprite, 0, sizeof *sprite); sprite->possible_crtcs = plane->possible_crtcs; sprite->plane_id = plane->plane_id; sprite->current = NULL; sprite->next = NULL; sprite->compositor = ec; sprite->count_formats = plane->count_formats; memcpy(sprite->formats, plane->formats, plane->count_formats * sizeof(plane->formats[0])); drmModeFreePlane(plane); weston_plane_init(&sprite->plane, 0, 0); wl_list_insert(&ec->sprite_list, &sprite->link); } free(plane_res->planes); free(plane_res); } static void destroy_sprites(struct drm_compositor *compositor) { struct drm_sprite *sprite, *next; struct drm_output *output; output = container_of(compositor->base.output_list.next, struct drm_output, base.link); wl_list_for_each_safe(sprite, next, &compositor->sprite_list, link) { drmModeSetPlane(compositor->drm.fd, sprite->plane_id, output->crtc_id, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); if (sprite->current) gbm_bo_destroy(sprite->current->bo); if (sprite->next) gbm_bo_destroy(sprite->next->bo); weston_plane_release(&sprite->plane); free(sprite); } } static int create_outputs(struct drm_compositor *ec, uint32_t option_connector, struct udev_device *drm_device) { drmModeConnector *connector; drmModeRes *resources; int i; int x = 0, y = 0; resources = drmModeGetResources(ec->drm.fd); if (!resources) { weston_log("drmModeGetResources failed\n"); return -1; } ec->crtcs = calloc(resources->count_crtcs, sizeof(uint32_t)); if (!ec->crtcs) { drmModeFreeResources(resources); return -1; } ec->min_width = resources->min_width; ec->max_width = resources->max_width; ec->min_height = resources->min_height; ec->max_height = resources->max_height; ec->num_crtcs = resources->count_crtcs; memcpy(ec->crtcs, resources->crtcs, sizeof(uint32_t) * ec->num_crtcs); for (i = 0; i < resources->count_connectors; i++) { connector = drmModeGetConnector(ec->drm.fd, resources->connectors[i]); if (connector == NULL) continue; if (connector->connection == DRM_MODE_CONNECTED && (option_connector == 0 || connector->connector_id == option_connector)) { if (create_output_for_connector(ec, resources, connector, x, y, drm_device) < 0) { drmModeFreeConnector(connector); continue; } x += container_of(ec->base.output_list.prev, struct weston_output, link)->width; } drmModeFreeConnector(connector); } if (wl_list_empty(&ec->base.output_list)) { weston_log("No currently active connector found.\n"); drmModeFreeResources(resources); return -1; } drmModeFreeResources(resources); return 0; } static void update_outputs(struct drm_compositor *ec, struct udev_device *drm_device) { drmModeConnector *connector; drmModeRes *resources; struct drm_output *output, *next; int x = 0, y = 0; int x_offset = 0, y_offset = 0; uint32_t connected = 0, disconnects = 0; int i; resources = drmModeGetResources(ec->drm.fd); if (!resources) { weston_log("drmModeGetResources failed\n"); return; } /* collect new connects */ for (i = 0; i < resources->count_connectors; i++) { int connector_id = resources->connectors[i]; connector = drmModeGetConnector(ec->drm.fd, connector_id); if (connector == NULL) continue; if (connector->connection != DRM_MODE_CONNECTED) { drmModeFreeConnector(connector); continue; } connected |= (1 << connector_id); if (!(ec->connector_allocator & (1 << connector_id))) { struct weston_output *last = container_of(ec->base.output_list.prev, struct weston_output, link); /* XXX: not yet needed, we die with 0 outputs */ if (!wl_list_empty(&ec->base.output_list)) x = last->x + last->width; else x = 0; y = 0; create_output_for_connector(ec, resources, connector, x, y, drm_device); weston_log("connector %d connected\n", connector_id); } drmModeFreeConnector(connector); } drmModeFreeResources(resources); disconnects = ec->connector_allocator & ~connected; if (disconnects) { wl_list_for_each_safe(output, next, &ec->base.output_list, base.link) { if (x_offset != 0 || y_offset != 0) { weston_output_move(&output->base, output->base.x - x_offset, output->base.y - y_offset); } if (disconnects & (1 << output->connector_id)) { disconnects &= ~(1 << output->connector_id); weston_log("connector %d disconnected\n", output->connector_id); x_offset += output->base.width; drm_output_destroy(&output->base); } } } /* FIXME: handle zero outputs, without terminating */ if (ec->connector_allocator == 0) wl_display_terminate(ec->base.wl_display); } static int udev_event_is_hotplug(struct drm_compositor *ec, struct udev_device *device) { const char *sysnum; const char *val; sysnum = udev_device_get_sysnum(device); if (!sysnum || atoi(sysnum) != ec->drm.id) return 0; val = udev_device_get_property_value(device, "HOTPLUG"); if (!val) return 0; return strcmp(val, "1") == 0; } static int udev_drm_event(int fd, uint32_t mask, void *data) { struct drm_compositor *ec = data; struct udev_device *event; event = udev_monitor_receive_device(ec->udev_monitor); if (udev_event_is_hotplug(ec, event)) update_outputs(ec, event); udev_device_unref(event); return 1; } static void drm_restore(struct weston_compositor *ec) { struct drm_compositor *d = (struct drm_compositor *) ec; if (weston_launcher_drm_set_master(&d->base, d->drm.fd, 0) < 0) weston_log("failed to drop master: %m\n"); tty_reset(d->tty); } static const char default_seat[] = "seat0"; static void device_added(struct udev_device *udev_device, struct drm_seat *master) { struct weston_compositor *c; struct evdev_device *device; const char *devnode; const char *device_seat; const char *calibration_values; int fd; device_seat = udev_device_get_property_value(udev_device, "ID_SEAT"); if (!device_seat) device_seat = default_seat; if (strcmp(device_seat, master->seat_id)) return; c = master->base.compositor; devnode = udev_device_get_devnode(udev_device); /* Use non-blocking mode so that we can loop on read on * evdev_device_data() until all events on the fd are * read. mtdev_get() also expects this. */ fd = weston_launcher_open(c, devnode, O_RDWR | O_NONBLOCK); if (fd < 0) { weston_log("opening input device '%s' failed.\n", devnode); return; } device = evdev_device_create(&master->base, devnode, fd); if (!device) { close(fd); weston_log("not using input device '%s'.\n", devnode); return; } calibration_values = udev_device_get_property_value(udev_device, "WL_CALIBRATION"); if (calibration_values && sscanf(calibration_values, "%f %f %f %f %f %f", &device->abs.calibration[0], &device->abs.calibration[1], &device->abs.calibration[2], &device->abs.calibration[3], &device->abs.calibration[4], &device->abs.calibration[5]) == 6) { device->abs.apply_calibration = 1; weston_log ("Applying calibration: %f %f %f %f %f %f\n", device->abs.calibration[0], device->abs.calibration[1], device->abs.calibration[2], device->abs.calibration[3], device->abs.calibration[4], device->abs.calibration[5]); } wl_list_insert(master->devices_list.prev, &device->link); } static void evdev_add_devices(struct udev *udev, struct weston_seat *seat_base) { struct drm_seat *seat = (struct drm_seat *) seat_base; struct udev_enumerate *e; struct udev_list_entry *entry; struct udev_device *device; const char *path, *sysname; e = udev_enumerate_new(udev); udev_enumerate_add_match_subsystem(e, "input"); udev_enumerate_scan_devices(e); udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) { path = udev_list_entry_get_name(entry); device = udev_device_new_from_syspath(udev, path); sysname = udev_device_get_sysname(device); if (strncmp("event", sysname, 5) != 0) { udev_device_unref(device); continue; } device_added(device, seat); udev_device_unref(device); } udev_enumerate_unref(e); evdev_notify_keyboard_focus(&seat->base, &seat->devices_list); if (wl_list_empty(&seat->devices_list)) { weston_log( "warning: no input devices on entering Weston. " "Possible causes:\n" "\t- no permissions to read /dev/input/event*\n" "\t- seats misconfigured " "(Weston backend option 'seat', " "udev device property ID_SEAT)\n"); } } static int evdev_udev_handler(int fd, uint32_t mask, void *data) { struct drm_seat *seat = data; struct udev_device *udev_device; struct evdev_device *device, *next; const char *action; const char *devnode; udev_device = udev_monitor_receive_device(seat->udev_monitor); if (!udev_device) return 1; action = udev_device_get_action(udev_device); if (!action) goto out; if (strncmp("event", udev_device_get_sysname(udev_device), 5) != 0) goto out; if (!strcmp(action, "add")) { device_added(udev_device, seat); } else if (!strcmp(action, "remove")) { devnode = udev_device_get_devnode(udev_device); wl_list_for_each_safe(device, next, &seat->devices_list, link) if (!strcmp(device->devnode, devnode)) { weston_log("input device %s, %s removed\n", device->devname, device->devnode); evdev_device_destroy(device); break; } } out: udev_device_unref(udev_device); return 0; } static int evdev_enable_udev_monitor(struct udev *udev, struct weston_seat *seat_base) { struct drm_seat *master = (struct drm_seat *) seat_base; struct wl_event_loop *loop; struct weston_compositor *c = master->base.compositor; int fd; master->udev_monitor = udev_monitor_new_from_netlink(udev, "udev"); if (!master->udev_monitor) { weston_log("udev: failed to create the udev monitor\n"); return 0; } udev_monitor_filter_add_match_subsystem_devtype(master->udev_monitor, "input", NULL); if (udev_monitor_enable_receiving(master->udev_monitor)) { weston_log("udev: failed to bind the udev monitor\n"); udev_monitor_unref(master->udev_monitor); return 0; } loop = wl_display_get_event_loop(c->wl_display); fd = udev_monitor_get_fd(master->udev_monitor); master->udev_monitor_source = wl_event_loop_add_fd(loop, fd, WL_EVENT_READABLE, evdev_udev_handler, master); if (!master->udev_monitor_source) { udev_monitor_unref(master->udev_monitor); return 0; } return 1; } static void evdev_disable_udev_monitor(struct weston_seat *seat_base) { struct drm_seat *seat = (struct drm_seat *) seat_base; if (!seat->udev_monitor) return; udev_monitor_unref(seat->udev_monitor); seat->udev_monitor = NULL; wl_event_source_remove(seat->udev_monitor_source); seat->udev_monitor_source = NULL; } static void drm_led_update(struct weston_seat *seat_base, enum weston_led leds) { struct drm_seat *seat = (struct drm_seat *) seat_base; struct evdev_device *device; wl_list_for_each(device, &seat->devices_list, link) evdev_led_update(device, leds); } static void evdev_input_create(struct weston_compositor *c, struct udev *udev, const char *seat_id) { struct drm_seat *seat; seat = malloc(sizeof *seat); if (seat == NULL) return; memset(seat, 0, sizeof *seat); weston_seat_init(&seat->base, c); seat->base.led_update = drm_led_update; wl_list_init(&seat->devices_list); seat->seat_id = strdup(seat_id); if (!evdev_enable_udev_monitor(udev, &seat->base)) { free(seat->seat_id); free(seat); return; } evdev_add_devices(udev, &seat->base); } static void evdev_remove_devices(struct weston_seat *seat_base) { struct drm_seat *seat = (struct drm_seat *) seat_base; struct evdev_device *device, *next; wl_list_for_each_safe(device, next, &seat->devices_list, link) evdev_device_destroy(device); if (seat->base.seat.keyboard) notify_keyboard_focus_out(&seat->base); } static void evdev_input_destroy(struct weston_seat *seat_base) { struct drm_seat *seat = (struct drm_seat *) seat_base; evdev_remove_devices(seat_base); evdev_disable_udev_monitor(&seat->base); weston_seat_release(seat_base); free(seat->seat_id); free(seat); } static void drm_free_configured_output(struct drm_configured_output *output) { free(output->name); free(output->mode); free(output); } static void drm_destroy(struct weston_compositor *ec) { struct drm_compositor *d = (struct drm_compositor *) ec; struct weston_seat *seat, *next; struct drm_configured_output *o, *n; wl_list_for_each_safe(seat, next, &ec->seat_list, link) evdev_input_destroy(seat); wl_list_for_each_safe(o, n, &configured_output_list, link) drm_free_configured_output(o); wl_event_source_remove(d->udev_drm_source); wl_event_source_remove(d->drm_source); weston_compositor_shutdown(ec); gl_renderer_destroy(ec); destroy_sprites(d); gbm_device_destroy(d->gbm); if (weston_launcher_drm_set_master(&d->base, d->drm.fd, 0) < 0) weston_log("failed to drop master: %m\n"); tty_destroy(d->tty); free(d); } static void drm_compositor_set_modes(struct drm_compositor *compositor) { struct drm_output *output; struct drm_mode *drm_mode; int ret; wl_list_for_each(output, &compositor->base.output_list, base.link) { drm_mode = (struct drm_mode *) output->base.current; ret = drmModeSetCrtc(compositor->drm.fd, output->crtc_id, output->current->fb_id, 0, 0, &output->connector_id, 1, &drm_mode->mode_info); if (ret < 0) { weston_log( "failed to set mode %dx%d for output at %d,%d: %m\n", drm_mode->base.width, drm_mode->base.height, output->base.x, output->base.y); } } } static void vt_func(struct weston_compositor *compositor, int event) { struct drm_compositor *ec = (struct drm_compositor *) compositor; struct weston_seat *seat; struct drm_sprite *sprite; struct drm_output *output; switch (event) { case TTY_ENTER_VT: weston_log("entering VT\n"); compositor->focus = 1; if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 1)) { weston_log("failed to set master: %m\n"); wl_display_terminate(compositor->wl_display); } compositor->state = ec->prev_state; drm_compositor_set_modes(ec); weston_compositor_damage_all(compositor); wl_list_for_each(seat, &compositor->seat_list, link) { evdev_add_devices(ec->udev, seat); evdev_enable_udev_monitor(ec->udev, seat); } break; case TTY_LEAVE_VT: weston_log("leaving VT\n"); wl_list_for_each(seat, &compositor->seat_list, link) { evdev_disable_udev_monitor(seat); evdev_remove_devices(seat); } compositor->focus = 0; ec->prev_state = compositor->state; compositor->state = WESTON_COMPOSITOR_SLEEPING; /* If we have a repaint scheduled (either from a * pending pageflip or the idle handler), make sure we * cancel that so we don't try to pageflip when we're * vt switched away. The SLEEPING state will prevent * further attemps at repainting. When we switch * back, we schedule a repaint, which will process * pending frame callbacks. */ wl_list_for_each(output, &ec->base.output_list, base.link) { output->base.repaint_needed = 0; drmModeSetCursor(ec->drm.fd, output->crtc_id, 0, 0, 0); } output = container_of(ec->base.output_list.next, struct drm_output, base.link); wl_list_for_each(sprite, &ec->sprite_list, link) drmModeSetPlane(ec->drm.fd, sprite->plane_id, output->crtc_id, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 0) < 0) weston_log("failed to drop master: %m\n"); break; }; } static void switch_vt_binding(struct wl_seat *seat, uint32_t time, uint32_t key, void *data) { struct drm_compositor *ec = data; tty_activate_vt(ec->tty, key - KEY_F1 + 1); } /* * Find primary GPU * Some systems may have multiple DRM devices attached to a single seat. This * function loops over all devices and tries to find a PCI device with the * boot_vga sysfs attribute set to 1. * If no such device is found, the first DRM device reported by udev is used. */ static struct udev_device* find_primary_gpu(struct drm_compositor *ec, const char *seat) { struct udev_enumerate *e; struct udev_list_entry *entry; const char *path, *device_seat, *id; struct udev_device *device, *drm_device, *pci; e = udev_enumerate_new(ec->udev); udev_enumerate_add_match_subsystem(e, "drm"); udev_enumerate_add_match_sysname(e, "card[0-9]*"); udev_enumerate_scan_devices(e); drm_device = NULL; udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) { path = udev_list_entry_get_name(entry); device = udev_device_new_from_syspath(ec->udev, path); if (!device) continue; device_seat = udev_device_get_property_value(device, "ID_SEAT"); if (!device_seat) device_seat = default_seat; if (strcmp(device_seat, seat)) { udev_device_unref(device); continue; } pci = udev_device_get_parent_with_subsystem_devtype(device, "pci", NULL); if (pci) { id = udev_device_get_sysattr_value(pci, "boot_vga"); if (id && !strcmp(id, "1")) { if (drm_device) udev_device_unref(drm_device); drm_device = device; break; } } if (!drm_device) drm_device = device; else udev_device_unref(device); } udev_enumerate_unref(e); return drm_device; } static void planes_binding(struct wl_seat *seat, uint32_t time, uint32_t key, void *data) { struct drm_compositor *c = data; switch (key) { case KEY_C: c->cursors_are_broken ^= 1; break; case KEY_V: c->sprites_are_broken ^= 1; break; case KEY_O: c->sprites_hidden ^= 1; break; default: break; } } static struct weston_compositor * drm_compositor_create(struct wl_display *display, int connector, const char *seat, int tty, int argc, char *argv[], const char *config_file) { struct drm_compositor *ec; struct udev_device *drm_device; struct wl_event_loop *loop; struct weston_seat *weston_seat, *next; const char *path; uint32_t key; weston_log("initializing drm backend\n"); ec = malloc(sizeof *ec); if (ec == NULL) return NULL; memset(ec, 0, sizeof *ec); /* KMS support for sprites is not complete yet, so disable the * functionality for now. */ ec->sprites_are_broken = 1; if (weston_compositor_init(&ec->base, display, argc, argv, config_file) < 0) { weston_log("weston_compositor_init failed\n"); goto err_base; } ec->udev = udev_new(); if (ec->udev == NULL) { weston_log("failed to initialize udev context\n"); goto err_compositor; } ec->base.wl_display = display; ec->tty = tty_create(&ec->base, vt_func, tty); if (!ec->tty) { weston_log("failed to initialize tty\n"); goto err_udev; } drm_device = find_primary_gpu(ec, seat); if (drm_device == NULL) { weston_log("no drm device found\n"); goto err_tty; } path = udev_device_get_syspath(drm_device); if (init_egl(ec, drm_device) < 0) { weston_log("failed to initialize egl\n"); goto err_udev_dev; } ec->base.destroy = drm_destroy; ec->base.restore = drm_restore; ec->base.focus = 1; ec->prev_state = WESTON_COMPOSITOR_ACTIVE; for (key = KEY_F1; key < KEY_F9; key++) weston_compositor_add_key_binding(&ec->base, key, MODIFIER_CTRL | MODIFIER_ALT, switch_vt_binding, ec); wl_list_init(&ec->sprite_list); create_sprites(ec); if (create_outputs(ec, connector, drm_device) < 0) { weston_log("failed to create output for %s\n", path); goto err_sprite; } path = NULL; evdev_input_create(&ec->base, ec->udev, seat); loop = wl_display_get_event_loop(ec->base.wl_display); ec->drm_source = wl_event_loop_add_fd(loop, ec->drm.fd, WL_EVENT_READABLE, on_drm_input, ec); ec->udev_monitor = udev_monitor_new_from_netlink(ec->udev, "udev"); if (ec->udev_monitor == NULL) { weston_log("failed to intialize udev monitor\n"); goto err_drm_source; } udev_monitor_filter_add_match_subsystem_devtype(ec->udev_monitor, "drm", NULL); ec->udev_drm_source = wl_event_loop_add_fd(loop, udev_monitor_get_fd(ec->udev_monitor), WL_EVENT_READABLE, udev_drm_event, ec); if (udev_monitor_enable_receiving(ec->udev_monitor) < 0) { weston_log("failed to enable udev-monitor receiving\n"); goto err_udev_monitor; } udev_device_unref(drm_device); weston_compositor_add_debug_binding(&ec->base, KEY_O, planes_binding, ec); weston_compositor_add_debug_binding(&ec->base, KEY_C, planes_binding, ec); weston_compositor_add_debug_binding(&ec->base, KEY_V, planes_binding, ec); return &ec->base; err_udev_monitor: wl_event_source_remove(ec->udev_drm_source); udev_monitor_unref(ec->udev_monitor); err_drm_source: wl_event_source_remove(ec->drm_source); wl_list_for_each_safe(weston_seat, next, &ec->base.seat_list, link) evdev_input_destroy(weston_seat); err_sprite: gl_renderer_destroy(&ec->base); gbm_device_destroy(ec->gbm); destroy_sprites(ec); err_udev_dev: udev_device_unref(drm_device); err_tty: tty_destroy(ec->tty); err_udev: udev_unref(ec->udev); err_compositor: weston_compositor_shutdown(&ec->base); err_base: free(ec); return NULL; } static int set_sync_flags(drmModeModeInfo *mode, char *hsync, char *vsync) { mode->flags = 0; if (strcmp(hsync, "+hsync") == 0) mode->flags |= DRM_MODE_FLAG_PHSYNC; else if (strcmp(hsync, "-hsync") == 0) mode->flags |= DRM_MODE_FLAG_NHSYNC; else return -1; if (strcmp(vsync, "+vsync") == 0) mode->flags |= DRM_MODE_FLAG_PVSYNC; else if (strcmp(vsync, "-vsync") == 0) mode->flags |= DRM_MODE_FLAG_NVSYNC; else return -1; return 0; } static int check_for_modeline(struct drm_configured_output *output) { drmModeModeInfo mode; char hsync[16]; char vsync[16]; char mode_name[16]; float fclock; mode.type = DRM_MODE_TYPE_USERDEF; mode.hskew = 0; mode.vscan = 0; mode.vrefresh = 0; if (sscanf(output_mode, "%f %hd %hd %hd %hd %hd %hd %hd %hd %s %s", &fclock, &mode.hdisplay, &mode.hsync_start, &mode.hsync_end, &mode.htotal, &mode.vdisplay, &mode.vsync_start, &mode.vsync_end, &mode.vtotal, hsync, vsync) == 11) { if (set_sync_flags(&mode, hsync, vsync)) return -1; sprintf(mode_name, "%dx%d", mode.hdisplay, mode.vdisplay); strcpy(mode.name, mode_name); mode.clock = fclock * 1000; } else return -1; output->crtc_mode = mode; return 0; } static void drm_output_set_transform(struct drm_configured_output *output) { if (!output_transform) { output->transform = WL_OUTPUT_TRANSFORM_NORMAL; return; } if (!strcmp(output_transform, "normal")) output->transform = WL_OUTPUT_TRANSFORM_NORMAL; else if (!strcmp(output_transform, "90")) output->transform = WL_OUTPUT_TRANSFORM_90; else if (!strcmp(output_transform, "180")) output->transform = WL_OUTPUT_TRANSFORM_180; else if (!strcmp(output_transform, "270")) output->transform = WL_OUTPUT_TRANSFORM_270; else if (!strcmp(output_transform, "flipped")) output->transform = WL_OUTPUT_TRANSFORM_FLIPPED; else if (!strcmp(output_transform, "flipped-90")) output->transform = WL_OUTPUT_TRANSFORM_FLIPPED_90; else if (!strcmp(output_transform, "flipped-180")) output->transform = WL_OUTPUT_TRANSFORM_FLIPPED_180; else if (!strcmp(output_transform, "flipped-270")) output->transform = WL_OUTPUT_TRANSFORM_FLIPPED_270; else { weston_log("Invalid transform \"%s\" for output %s\n", output_transform, output_name); output->transform = WL_OUTPUT_TRANSFORM_NORMAL; } free(output_transform); output_transform = NULL; } static void output_section_done(void *data) { struct drm_configured_output *output; output = malloc(sizeof *output); if (!output || !output_name || (output_name[0] == 'X') || (!output_mode && !output_transform)) { free(output_name); free(output_mode); free(output_transform); free(output); output_name = NULL; output_mode = NULL; output_transform = NULL; return; } output->config = OUTPUT_CONFIG_INVALID; output->name = output_name; output->mode = output_mode; if (output_mode) { if (strcmp(output_mode, "off") == 0) output->config = OUTPUT_CONFIG_OFF; else if (strcmp(output_mode, "preferred") == 0) output->config = OUTPUT_CONFIG_PREFERRED; else if (strcmp(output_mode, "current") == 0) output->config = OUTPUT_CONFIG_CURRENT; else if (sscanf(output_mode, "%dx%d", &output->width, &output->height) == 2) output->config = OUTPUT_CONFIG_MODE; else if (check_for_modeline(output) == 0) output->config = OUTPUT_CONFIG_MODELINE; if (output->config == OUTPUT_CONFIG_INVALID) weston_log("Invalid mode \"%s\" for output %s\n", output_mode, output_name); output_mode = NULL; } drm_output_set_transform(output); wl_list_insert(&configured_output_list, &output->link); if (output_transform) free(output_transform); output_transform = NULL; } WL_EXPORT struct weston_compositor * backend_init(struct wl_display *display, int argc, char *argv[], const char *config_file) { int connector = 0, tty = 0; const char *seat = default_seat; const struct weston_option drm_options[] = { { WESTON_OPTION_INTEGER, "connector", 0, &connector }, { WESTON_OPTION_STRING, "seat", 0, &seat }, { WESTON_OPTION_INTEGER, "tty", 0, &tty }, { WESTON_OPTION_BOOLEAN, "current-mode", 0, &option_current_mode }, }; parse_options(drm_options, ARRAY_LENGTH(drm_options), argc, argv); wl_list_init(&configured_output_list); const struct config_key drm_config_keys[] = { { "name", CONFIG_KEY_STRING, &output_name }, { "mode", CONFIG_KEY_STRING, &output_mode }, { "transform", CONFIG_KEY_STRING, &output_transform }, }; const struct config_section config_section[] = { { "output", drm_config_keys, ARRAY_LENGTH(drm_config_keys), output_section_done }, }; parse_config_file(config_file, config_section, ARRAY_LENGTH(config_section), NULL); return drm_compositor_create(display, connector, seat, tty, argc, argv, config_file); }