diff --git a/backend/drm/backend.c b/backend/drm/backend.c index 8c500190..da7ca1e4 100644 --- a/backend/drm/backend.c +++ b/backend/drm/backend.c @@ -1,37 +1,42 @@ #include #include #include +#include +#include #include "backend/drm/backend.h" #include "backend/drm/drm.h" #include "backend/drm/event.h" #include "backend/drm/session.h" #include "backend/drm/udev.h" +#include "common/log.h" struct wlr_drm_backend *wlr_drm_backend_init(void) { struct wlr_drm_backend *backend = calloc(1, sizeof *backend); - if (!backend) + if (!backend) { + wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno)); return NULL; + } if (!wlr_session_start(&backend->session)) { - fprintf(stderr, "Could not create session\n"); + wlr_log(L_ERROR, "Failed to start session"); goto error; } if (!wlr_udev_init(&backend->udev)) { - fprintf(stderr, "Could not start udev\n"); + wlr_log(L_ERROR, "Failed to start udev"); goto error_session; } backend->fd = wlr_udev_find_gpu(&backend->udev, &backend->session); if (backend->fd == -1) { - fprintf(stderr, "Could not open GPU\n"); + wlr_log(L_ERROR, "Failed to open DRM device"); goto error_udev; } if (!wlr_drm_renderer_init(&backend->renderer, backend, backend->fd)) { - fprintf(stderr, "Could not initalise renderer\n"); + wlr_log(L_ERROR, "Failed to initialize renderer"); goto error_fd; } @@ -56,7 +61,7 @@ void wlr_drm_backend_free(struct wlr_drm_backend *backend) return; for (size_t i = 0; i < backend->display_len; ++i) { - wlr_drm_display_free(&backend->displays[i]); + wlr_drm_display_free(&backend->displays[i], true); } wlr_drm_renderer_free(&backend->renderer); diff --git a/backend/drm/drm.c b/backend/drm/drm.c index c5b797c3..94d79e5c 100644 --- a/backend/drm/drm.c +++ b/backend/drm/drm.c @@ -1,7 +1,3 @@ -#include "backend/drm/backend.h" -#include "backend/drm/drm.h" -#include "backend/drm/event.h" - #include #include #include @@ -16,6 +12,11 @@ #include #include +#include "backend/drm/backend.h" +#include "backend/drm/drm.h" +#include "backend/drm/event.h" +#include "common/log.h" + static const char *conn_name[] = { [DRM_MODE_CONNECTOR_Unknown] = "Unknown", [DRM_MODE_CONNECTOR_VGA] = "VGA", @@ -36,6 +37,44 @@ static const char *conn_name[] = { [DRM_MODE_CONNECTOR_DSI] = "DSI", }; +static const char *egl_error(void) +{ + switch (eglGetError()) { + case EGL_SUCCESS: + return "Success"; + case EGL_NOT_INITIALIZED: + return "Not initialized"; + case EGL_BAD_ACCESS: + return "Bad access"; + case EGL_BAD_ALLOC: + return "Bad alloc"; + case EGL_BAD_ATTRIBUTE: + return "Bad attribute"; + case EGL_BAD_CONTEXT: + return "Bad Context"; + case EGL_BAD_CONFIG: + return "Bad Config"; + case EGL_BAD_CURRENT_SURFACE: + return "Bad current surface"; + case EGL_BAD_DISPLAY: + return "Bad display"; + case EGL_BAD_SURFACE: + return "Bad surface"; + case EGL_BAD_MATCH: + return "Bad match"; + case EGL_BAD_PARAMETER: + return "Bad parameter"; + case EGL_BAD_NATIVE_PIXMAP: + return "Bad native pixmap"; + case EGL_BAD_NATIVE_WINDOW: + return "Bad native window"; + case EGL_CONTEXT_LOST: + return "Context lost"; + default: + return "Unknown"; + } +} + // EGL extensions PFNEGLGETPLATFORMDISPLAYEXTPROC get_platform_display; PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC create_platform_window_surface; @@ -45,10 +84,20 @@ static bool egl_exts() get_platform_display = (PFNEGLGETPLATFORMDISPLAYEXTPROC) eglGetProcAddress("eglGetPlatformDisplayEXT"); + if (!get_platform_display) { + wlr_log(L_ERROR, "Failed to load EGL extension 'eglGetPlatformDisplayEXT'"); + return false; + } + create_platform_window_surface = (PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC) eglGetProcAddress("eglCreatePlatformWindowSurfaceEXT"); - return get_platform_display && create_platform_window_surface; + if (!get_platform_display) { + wlr_log(L_ERROR, "Failed to load EGL extension 'eglCreatePlatformWindowSurfaceEXT'"); + return false; + } + + return true; } static bool egl_get_config(EGLDisplay disp, EGLConfig *out) @@ -88,35 +137,33 @@ static bool egl_get_config(EGLDisplay disp, EGLConfig *out) bool wlr_drm_renderer_init(struct wlr_drm_renderer *renderer, struct wlr_drm_backend *backend, int fd) { - if (!egl_exts()) { - fprintf(stderr, "Could not get EGL extensions\n"); + if (!egl_exts()) return false; - } renderer->gbm = gbm_create_device(fd); if (!renderer->gbm) { - fprintf(stderr, "Could not create gbm device: %s\n", strerror(errno)); + wlr_log(L_ERROR, "Failed to create GBM device: %s", strerror(errno)); return false; } if (eglBindAPI(EGL_OPENGL_ES_API) == EGL_FALSE) { - fprintf(stderr, "Could not bind GLES3 API\n"); + wlr_log(L_ERROR, "Failed to bind to the OpenGL ES API: %s", egl_error()); goto error_gbm; } renderer->egl.disp = get_platform_display(EGL_PLATFORM_GBM_MESA, renderer->gbm, NULL); if (renderer->egl.disp == EGL_NO_DISPLAY) { - fprintf(stderr, "Could not create EGL display\n"); + wlr_log(L_ERROR, "Failed to create EGL display: %s", egl_error()); goto error_gbm; } if (eglInitialize(renderer->egl.disp, NULL, NULL) == EGL_FALSE) { - fprintf(stderr, "Could not initalise EGL\n"); + wlr_log(L_ERROR, "Failed to initialize EGL: %s", egl_error()); goto error_egl; } if (!egl_get_config(renderer->egl.disp, &renderer->egl.conf)) { - fprintf(stderr, "Could not get EGL config\n"); + wlr_log(L_ERROR, "Failed to get EGL config"); goto error_egl; } @@ -126,7 +173,7 @@ bool wlr_drm_renderer_init(struct wlr_drm_renderer *renderer, renderer->egl.conf, EGL_NO_CONTEXT, attribs); if (renderer->egl.context == EGL_NO_CONTEXT) { - fprintf(stderr, "Could not create EGL context\n"); + wlr_log(L_ERROR, "Failed to create EGL context: %s", egl_error()); goto error_egl; } @@ -162,16 +209,20 @@ void wlr_drm_renderer_free(struct wlr_drm_renderer *renderer) void wlr_drm_scan_connectors(struct wlr_drm_backend *backend) { drmModeRes *res = drmModeGetResources(backend->fd); - if (!res) + if (!res) { + wlr_log(L_ERROR, "Failed to get DRM resources"); return; + } // I don't know if this needs to be allocated with realloc like this, // as it may not even be possible for the number of connectors to change. // I'll just have to see how DisplayPort MST works with DRM. if ((size_t)res->count_connectors > backend->display_len) { struct wlr_drm_display *new = realloc(backend->displays, sizeof *new * res->count_connectors); - if (!new) + if (!new) { + wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno)); goto error; + } for (int i = backend->display_len; i < res->count_connectors; ++i) { new[i] = (struct wlr_drm_display) { @@ -206,6 +257,7 @@ void wlr_drm_scan_connectors(struct wlr_drm_backend *backend) } else if (disp->state == DRM_DISP_CONNECTED && conn->connection != DRM_MODE_CONNECTED) { disp->state = DRM_DISP_DISCONNECTED; + wlr_drm_display_free(disp, false); wlr_drm_add_event(backend, disp, DRM_EV_DISPLAY_REM); } @@ -234,8 +286,10 @@ static uint32_t get_fb_for_bo(int fd, struct gbm_bo *bo) return *id; id = calloc(1, sizeof *id); - if (!id) + if (!id) { + wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno)); return 0; + } drmModeAddFB(fd, gbm_bo_get_width(bo), gbm_bo_get_height(bo), 24, 32, gbm_bo_get_stride(bo), gbm_bo_get_handle(bo).u32, id); @@ -254,13 +308,19 @@ static bool display_init_renderer(struct wlr_drm_renderer *renderer, disp->width, disp->height, GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING); - if (!disp->gbm) + if (!disp->gbm) { + wlr_log(L_ERROR, "Failed to create GBM surface for %s: %s", disp->name, + strerror(errno)); return false; + } disp->egl = create_platform_window_surface(renderer->egl.disp, renderer->egl.conf, disp->gbm, NULL); - if (disp->egl == EGL_NO_SURFACE) + if (disp->egl == EGL_NO_SURFACE) { + wlr_log(L_ERROR, "Failed to create EGL surface for %s: %s", disp->name, + egl_error()); return false; + } // Render black frame @@ -294,7 +354,7 @@ static drmModeModeInfo *select_mode(size_t num_modes, if (strcmp(str, "current") == 0) { if (!old_crtc) { - fprintf(stderr, "Display does not have currently configured mode\n"); + wlr_log(L_ERROR, "Display does not have currently configured mode"); return NULL; } @@ -313,7 +373,7 @@ static drmModeModeInfo *select_mode(size_t num_modes, int ret; if ((ret = sscanf(str, "%ux%u@%u", &width, &height, &rate)) != 2 && ret != 3) { - fprintf(stderr, "Invalid modesetting string\n"); + wlr_log(L_ERROR, "Invalid modesetting string '%s'", str); return NULL; } @@ -324,22 +384,40 @@ static drmModeModeInfo *select_mode(size_t num_modes, return &modes[i]; } + wlr_log(L_ERROR, "Unable to find mode %ux%u@%u", width, height, rate); return NULL; } bool wlr_drm_display_modeset(struct wlr_drm_backend *backend, struct wlr_drm_display *disp, const char *str) { + wlr_log(L_INFO, "Modesetting %s with '%s'", disp->name, str); + drmModeConnector *conn = drmModeGetConnector(backend->fd, disp->connector); - if (!conn || conn->connection != DRM_MODE_CONNECTED || conn->count_modes == 0) + if (!conn) { + wlr_log(L_ERROR, "Failed to get DRM connector"); goto error; + } + + if (conn->connection != DRM_MODE_CONNECTED || conn->count_modes == 0) { + wlr_log(L_ERROR, "%s is not connected", disp->name); + goto error; + } disp->num_modes = conn->count_modes; disp->modes = malloc(sizeof *disp->modes * disp->num_modes); - if (!disp->modes) + if (!disp->modes) { + wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno)); goto error; + } memcpy(disp->modes, conn->modes, sizeof *disp->modes * disp->num_modes); + wlr_log(L_INFO, "Detected modes:"); + for (size_t i = 0; i < disp->num_modes; ++i) + wlr_log(L_INFO, " %"PRIu16"@%"PRIu16"@%"PRIu32, + disp->modes[i].hdisplay, disp->modes[i].vdisplay, + disp->modes[i].vrefresh); + drmModeEncoder *curr_enc = drmModeGetEncoder(backend->fd, conn->encoder_id); if (curr_enc) { disp->old_crtc = drmModeGetCrtc(backend->fd, curr_enc->crtc_id); @@ -348,17 +426,15 @@ bool wlr_drm_display_modeset(struct wlr_drm_backend *backend, disp->active_mode = select_mode(disp->num_modes, disp->modes, disp->old_crtc, str); if (!disp->active_mode) { - fprintf(stderr, "Could not find mode '%s' for %s\n", str, disp->name); + wlr_log(L_ERROR, "Failed to configure %s", disp->name); goto error; } - fprintf(stderr, "Configuring %s with mode %ux%u@%u\n", - disp->name, disp->active_mode->hdisplay, disp->active_mode->vdisplay, - disp->active_mode->vrefresh); - drmModeRes *res = drmModeGetResources(backend->fd); - if (!res) + if (!res) { + wlr_log(L_ERROR, "Failed to get DRM resources"); goto error; + } bool success = false; for (int i = 0; !success && i < conn->count_encoders; ++i) { @@ -384,21 +460,33 @@ bool wlr_drm_display_modeset(struct wlr_drm_backend *backend, drmModeFreeResources(res); - if (!success) + if (!success) { + wlr_log(L_ERROR, "Failed to find CRTC for %s", disp->name); goto error; + } disp->state = DRM_DISP_CONNECTED; - drmModeFreeConnector(conn); disp->width = disp->active_mode->hdisplay; disp->height = disp->active_mode->vdisplay; - display_init_renderer(&backend->renderer, disp); + if (!display_init_renderer(&backend->renderer, disp)) { + wlr_log(L_ERROR, "Failed to initalise renderer for %s", disp->name); + goto error; + } + + drmModeFreeConnector(conn); + + wlr_log(L_INFO, "Configuring %s with mode %"PRIu16"x%"PRIu16"@%"PRIu32"\n", + disp->name, disp->active_mode->hdisplay, disp->active_mode->vdisplay, + disp->active_mode->vrefresh); return true; + error: disp->state = DRM_DISP_DISCONNECTED; drmModeFreeConnector(conn); + free(disp->modes); wlr_drm_add_event(backend, disp, DRM_EV_DISPLAY_REM); @@ -418,13 +506,22 @@ static void page_flip_handler(int fd, wlr_drm_add_event(disp->renderer->backend, disp, DRM_EV_RENDER); } -void wlr_drm_display_free(struct wlr_drm_display *disp) +void wlr_drm_display_free(struct wlr_drm_display *disp, bool restore) { if (!disp || disp->state != DRM_DISP_CONNECTED) return; struct wlr_drm_renderer *renderer = disp->renderer; + eglDestroySurface(renderer->egl.disp, disp->egl); + gbm_surface_destroy(disp->gbm); + + free(disp->modes); + disp->state = DRM_DISP_DISCONNECTED; + + if (!restore) + return; + drmModeCrtc *crtc = disp->old_crtc; if (crtc) { // Wait for exising page flips to finish @@ -443,11 +540,6 @@ void wlr_drm_display_free(struct wlr_drm_display *disp) 1, &crtc->mode); drmModeFreeCrtc(crtc); } - - eglDestroySurface(renderer->egl.disp, disp->egl); - gbm_surface_destroy(disp->gbm); - - free(disp->modes); } void wlr_drm_event(int fd) diff --git a/backend/drm/session.c b/backend/drm/session.c index 285f31b9..49223334 100644 --- a/backend/drm/session.c +++ b/backend/drm/session.c @@ -4,6 +4,7 @@ #include #include #include +#include #include #include #include @@ -13,6 +14,7 @@ #include "backend/drm/backend.h" #include "backend/drm/session.h" +#include "common/log.h" int wlr_session_take_device(struct wlr_session *restrict session, const char *restrict path, @@ -25,7 +27,7 @@ int wlr_session_take_device(struct wlr_session *restrict session, struct stat st; if (stat(path, &st) < 0) { - fprintf(stderr, "Failed to stat '%s'\n", path); + wlr_log(L_ERROR, "Failed to stat '%s'", path); return -1; } @@ -37,20 +39,26 @@ int wlr_session_take_device(struct wlr_session *restrict session, &error, &msg, "uu", major(st.st_rdev), minor(st.st_rdev)); if (ret < 0) { - fprintf(stderr, "%s\n", error.message); + wlr_log(L_ERROR, "Failed to take device '%s': %s", path, error.message); goto error; } int paused = 0; ret = sd_bus_message_read(msg, "hb", &fd, &paused); if (ret < 0) { - fprintf(stderr, "%s\n", strerror(-ret)); + wlr_log(L_ERROR, "Failed to parse DBus response for '%s': %s", + path, strerror(-ret)); goto error; } // The original fd seem to be closed when the message is freed // so we just clone it. fd = fcntl(fd, F_DUPFD_CLOEXEC, 0); + if (fd == -1) { + wlr_log(L_ERROR, "Failed to clone file descriptor for '%s': %s", + path, strerror(errno)); + goto error; + } if (paused_out) *paused_out = paused; @@ -69,7 +77,7 @@ void wlr_session_release_device(struct wlr_session *session, int fd) struct stat st; if (fstat(fd, &st) < 0) { - fprintf(stderr, "Could not stat fd %d\n", fd); + wlr_log(L_ERROR, "Failed to stat device '%d'", fd); return; } @@ -80,9 +88,8 @@ void wlr_session_release_device(struct wlr_session *session, int fd) "ReleaseDevice", &error, &msg, "uu", major(st.st_rdev), minor(st.st_rdev)); - if (ret < 0) { - /* Log something */; - } + if (ret < 0) + wlr_log(L_ERROR, "Failed to release device '%d'", fd); sd_bus_error_free(&error); sd_bus_message_unref(msg); @@ -101,9 +108,8 @@ static bool session_activate(struct wlr_session *session) "Activate", &error, &msg, ""); - if (ret < 0) { - fprintf(stderr, "%s\n", error.message); - } + if (ret < 0) + wlr_log(L_ERROR, "Failed to activate session"); sd_bus_error_free(&error); sd_bus_message_unref(msg); @@ -123,9 +129,8 @@ static bool take_control(struct wlr_session *session) "TakeControl", &error, &msg, "b", false); - if (ret < 0) { - /* Log something */; - } + if (ret < 0) + wlr_log(L_ERROR, "Failed to take control of session"); sd_bus_error_free(&error); sd_bus_message_unref(msg); @@ -145,9 +150,8 @@ static void release_control(struct wlr_session *session) "ReleaseControl", &error, &msg, ""); - if (ret < 0) { - /* Log something */; - } + if (ret < 0) + wlr_log(L_ERROR, "Failed to release control of session"); sd_bus_error_free(&error); sd_bus_message_unref(msg); @@ -169,13 +173,13 @@ bool wlr_session_start(struct wlr_session *session) ret = sd_pid_get_session(getpid(), &session->id); if (ret < 0) { - fprintf(stderr, "Could not get session\n"); + wlr_log(L_ERROR, "Failed to get session id: %s", strerror(-ret)); goto error; } ret = sd_session_get_seat(session->id, &session->seat); if (ret < 0) { - fprintf(stderr, "Could not get seat\n"); + wlr_log(L_ERROR, "Failed to get seat id: %s", strerror(-ret)); goto error; } @@ -192,19 +196,15 @@ bool wlr_session_start(struct wlr_session *session) ret = sd_bus_open_system(&session->bus); if (ret < 0) { - fprintf(stderr, "Could not open bus\n"); + wlr_log(L_ERROR, "Failed to open DBus connection: %s", strerror(-ret)); goto error; } - if (!session_activate(session)) { - fprintf(stderr, "Could not activate session\n"); + if (!session_activate(session)) goto error_bus; - } - if (!take_control(session)) { - fprintf(stderr, "Could not take control of session\n"); + if (!take_control(session)) goto error_bus; - } return true; diff --git a/backend/drm/udev.c b/backend/drm/udev.c index c5440303..ebc68c6b 100644 --- a/backend/drm/udev.c +++ b/backend/drm/udev.c @@ -12,6 +12,7 @@ #include "backend/drm/udev.h" #include "backend/drm/session.h" #include "backend/drm/drm.h" +#include "common/log.h" static bool device_is_kms(struct wlr_udev *udev, struct wlr_session *session, @@ -59,8 +60,10 @@ int wlr_udev_find_gpu(struct wlr_udev *udev, struct wlr_session *session) int fd = -1; struct udev_enumerate *en = udev_enumerate_new(udev->udev); - if (!en) + if (!en) { + wlr_log(L_ERROR, "Failed to create udev enumeration"); return -1; + } udev_enumerate_add_match_subsystem(en, "drm"); udev_enumerate_add_match_sysname(en, "card[0-9]*"); @@ -84,8 +87,7 @@ int wlr_udev_find_gpu(struct wlr_udev *udev, struct wlr_session *session) } struct udev_device *pci = - udev_device_get_parent_with_subsystem_devtype(dev, - "pci", NULL); + udev_device_get_parent_with_subsystem_devtype(dev, "pci", NULL); if (pci) { const char *id = udev_device_get_sysattr_value(pci, "boot_vga"); @@ -117,11 +119,14 @@ int wlr_udev_find_gpu(struct wlr_udev *udev, struct wlr_session *session) bool wlr_udev_init(struct wlr_udev *udev) { udev->udev = udev_new(); - if (!udev->udev) + if (!udev->udev) { + wlr_log(L_ERROR, "Failed to create udev context"); return false; + } udev->mon = udev_monitor_new_from_netlink(udev->udev, "udev"); if (!udev->mon) { + wlr_log(L_ERROR, "Failed to create udev monitor"); udev_unref(udev->udev); return false; } diff --git a/include/backend/drm/drm.h b/include/backend/drm/drm.h index bd3d4105..1fe4b7b0 100644 --- a/include/backend/drm/drm.h +++ b/include/backend/drm/drm.h @@ -59,7 +59,7 @@ struct wlr_drm_display { bool wlr_drm_display_modeset(struct wlr_drm_backend *backend, struct wlr_drm_display *disp, const char *str); -void wlr_drm_display_free(struct wlr_drm_display *disp); +void wlr_drm_display_free(struct wlr_drm_display *disp, bool restore); void wlr_drm_display_begin(struct wlr_drm_display *disp); void wlr_drm_display_end(struct wlr_drm_display *disp);