terminal: drop unfinished code

This drops the libsystemd-terminal and systemd-consoled code for various
reasons:

 * It's been sitting there unfinished for over a year now and won't get
   finished any time soon.

 * Since its initial creation, several parts need significant rework: The
   input handling should be replaced with the now commonly used libinput,
   the drm accessors should coordinate the handling of mode-object
   hotplugging (including split connectors) with other DRM users, and the
   internal library users should be converted to sd-device and friends.

 * There is still significant kernel work required before sd-console is
   really useful. This includes, but is not limited to, simpledrm and
   drmlog.

 * The authority daemon is needed before all this code can be used for
   real. And this will definitely take a lot more time to get done as
   no-one else is currently working on this, but me.

 * kdbus maintenance has taken up way more time than I thought and it has
   much higher priority. I don't see me spending much time on the
   terminal code in the near future.

If anyone intends to hack on this, please feel free to contact me. I'll
gladly help you out with any issues. Once kdbus and authorityd are
finished (whenever that will be..) I'll definitely pick this up again. But
until then, lets reduce compile times and maintenance efforts on this code
and drop it for now.

1 files changed, 0 insertions, 199 deletions

diff --git a/src/libsystemd-terminal/grdev.h b/src/libsystemd-terminal/grdev.h
deleted file mode 100644
index 110d24e6d5..0000000000
--- a/src/libsystemd-terminal/grdev.h
+++ /dev/null
@@ -1,199 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  This file is part of systemd.
-
-  Copyright (C) 2014 David Herrmann <dh.herrmann@gmail.com>
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as published by
-  the Free Software Foundation; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-/*
- * Graphics Devices
- * The grdev layer provides generic access to graphics devices. The device
- * types are hidden in the implementation and exported in a generic way. The
- * grdev_session object forms the base layer. It loads, configures and prepares
- * any graphics devices associated with that session. Each session is totally
- * independent of other sessions and can be controlled separately.
- * The target devices on a session are called display. A display always
- * corresponds to a real display regardless how many pipes are needed to drive
- * that display. That is, an exported display might internally be created out
- * of arbitrary combinations of target pipes. However, this is meant as
- * implementation detail and API users must never assume details below the
- * display-level. That is, a display is the most low-level object exported.
- * Therefore, pipe-configuration and any low-level modesetting is hidden from
- * the public API. It is provided by the implementation, and it is the
- * implementation that decides how pipes are driven.
- *
- * The API users are free to ignore specific displays or combine them to create
- * larger screens. This often requires user-configuration so is dictated by
- * policy. The underlying pipe-configuration might be affected by these
- * high-level policies, but is never directly controlled by those. That means,
- * depending on the displays you use, it might affect how underlying resources
- * are assigned. However, users can never directly apply policies to the pipes,
- * but only to displays. In case specific hardware needs quirks on the pipe
- * level, we support that via hwdb, not via public user configuration.
- *
- * Right now, displays are limited to rgb32 memory-mapped framebuffers on the
- * primary plane. However, the grdev implementation can be easily extended to
- * allow more powerful access (including hardware-acceleration for 2D and 3D
- * compositing). So far, this wasn't needed so it is not exposed.
- */
-
-#pragma once
-
-#include <libudev.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include "sd-bus.h"
-#include "sd-event.h"
-#include "util.h"
-
-typedef struct grdev_fb                 grdev_fb;
-typedef struct grdev_display_target     grdev_display_target;
-typedef struct grdev_display            grdev_display;
-
-typedef struct grdev_event              grdev_event;
-typedef struct grdev_session            grdev_session;
-typedef struct grdev_context            grdev_context;
-
-enum {
-        /* clockwise rotation; we treat this is abelian group Z4 with ADD */
-        GRDEV_ROTATE_0                  = 0,
-        GRDEV_ROTATE_90                 = 1,
-        GRDEV_ROTATE_180                = 2,
-        GRDEV_ROTATE_270                = 3,
-};
-
-enum {
-        /* flip states; we treat this as abelian group V4 with XOR */
-        GRDEV_FLIP_NONE                 = 0x0,
-        GRDEV_FLIP_HORIZONTAL           = 0x1,
-        GRDEV_FLIP_VERTICAL             = 0x2,
-};
-
-/*
- * Displays
- */
-
-struct grdev_fb {
-        uint32_t width;
-        uint32_t height;
-        uint32_t format;
-        int32_t strides[4];
-        void *maps[4];
-
-        union {
-                void *ptr;
-                uint64_t u64;
-        } data;
-
-        void (*free_fn) (void *ptr);
-};
-
-struct grdev_display_target {
-        uint32_t x;
-        uint32_t y;
-        uint32_t width;
-        uint32_t height;
-        unsigned int rotate;
-        unsigned int flip;
-        grdev_fb *front;
-        grdev_fb *back;
-};
-
-void grdev_display_set_userdata(grdev_display *display, void *userdata);
-void *grdev_display_get_userdata(grdev_display *display);
-
-const char *grdev_display_get_name(grdev_display *display);
-uint32_t grdev_display_get_width(grdev_display *display);
-uint32_t grdev_display_get_height(grdev_display *display);
-
-bool grdev_display_is_enabled(grdev_display *display);
-void grdev_display_enable(grdev_display *display);
-void grdev_display_disable(grdev_display *display);
-
-const grdev_display_target *grdev_display_next_target(grdev_display *display, const grdev_display_target *prev);
-void grdev_display_flip_target(grdev_display *display, const grdev_display_target *target);
-
-#define GRDEV_DISPLAY_FOREACH_TARGET(_display, _t)                      \
-        for ((_t) = grdev_display_next_target((_display), NULL);        \
-             (_t);                                                      \
-             (_t) = grdev_display_next_target((_display), (_t)))
-
-/*
- * Events
- */
-
-enum {
-        GRDEV_EVENT_DISPLAY_ADD,
-        GRDEV_EVENT_DISPLAY_REMOVE,
-        GRDEV_EVENT_DISPLAY_CHANGE,
-        GRDEV_EVENT_DISPLAY_FRAME,
-};
-
-typedef void (*grdev_event_fn) (grdev_session *session, void *userdata, grdev_event *ev);
-
-struct grdev_event {
-        unsigned int type;
-        union {
-                struct {
-                        grdev_display *display;
-                } display_add, display_remove, display_change;
-
-                struct {
-                        grdev_display *display;
-                } display_frame;
-        };
-};
-
-/*
- * Sessions
- */
-
-enum {
-        GRDEV_SESSION_CUSTOM                    = (1 << 0),
-        GRDEV_SESSION_MANAGED                   = (1 << 1),
-};
-
-int grdev_session_new(grdev_session **out,
-                      grdev_context *context,
-                      unsigned int flags,
-                      const char *name,
-                      grdev_event_fn event_fn,
-                      void *userdata);
-grdev_session *grdev_session_free(grdev_session *session);
-
-DEFINE_TRIVIAL_CLEANUP_FUNC(grdev_session*, grdev_session_free);
-
-bool grdev_session_is_enabled(grdev_session *session);
-void grdev_session_enable(grdev_session *session);
-void grdev_session_disable(grdev_session *session);
-
-void grdev_session_commit(grdev_session *session);
-void grdev_session_restore(grdev_session *session);
-
-void grdev_session_add_drm(grdev_session *session, struct udev_device *ud);
-void grdev_session_remove_drm(grdev_session *session, struct udev_device *ud);
-void grdev_session_hotplug_drm(grdev_session *session, struct udev_device *ud);
-
-/*
- * Contexts
- */
-
-int grdev_context_new(grdev_context **out, sd_event *event, sd_bus *sysbus);
-grdev_context *grdev_context_ref(grdev_context *context);
-grdev_context *grdev_context_unref(grdev_context *context);
-
-DEFINE_TRIVIAL_CLEANUP_FUNC(grdev_context*, grdev_context_unref);