252 lines
6.1 KiB
C
252 lines
6.1 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright (C) 2014 David Herrmann <dh.herrmann@gmail.com>
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#pragma once
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#include <inttypes.h>
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#include <libudev.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <systemd/sd-bus.h>
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#include <systemd/sd-event.h>
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#include "grdev.h"
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#include "hashmap.h"
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#include "list.h"
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#include "util.h"
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typedef struct grdev_tile grdev_tile;
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typedef struct grdev_display_cache grdev_display_cache;
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typedef struct grdev_pipe_vtable grdev_pipe_vtable;
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typedef struct grdev_pipe grdev_pipe;
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typedef struct grdev_card_vtable grdev_card_vtable;
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typedef struct grdev_card grdev_card;
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/*
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* DRM cards
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*/
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bool grdev_is_drm_card(grdev_card *card);
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grdev_card *grdev_find_drm_card(grdev_session *session, dev_t devnum);
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int grdev_drm_card_new(grdev_card **out, grdev_session *session, struct udev_device *ud);
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void grdev_drm_card_hotplug(grdev_card *card, struct udev_device *ud);
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/*
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* Displays
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*/
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enum {
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GRDEV_TILE_LEAF,
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GRDEV_TILE_NODE,
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GRDEV_TILE_CNT
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};
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struct grdev_tile {
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LIST_FIELDS(grdev_tile, children_by_node);
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grdev_tile *parent;
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grdev_display *display;
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uint32_t x;
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uint32_t y;
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unsigned int rotate;
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unsigned int flip;
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uint32_t cache_w;
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uint32_t cache_h;
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unsigned int type;
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union {
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struct {
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grdev_pipe *pipe;
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} leaf;
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struct {
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size_t n_children;
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LIST_HEAD(grdev_tile, child_list);
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} node;
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};
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};
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int grdev_tile_new_leaf(grdev_tile **out, grdev_pipe *pipe);
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int grdev_tile_new_node(grdev_tile **out);
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grdev_tile *grdev_tile_free(grdev_tile *tile);
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DEFINE_TRIVIAL_CLEANUP_FUNC(grdev_tile*, grdev_tile_free);
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struct grdev_display {
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grdev_session *session;
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char *name;
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void *userdata;
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size_t n_leafs;
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grdev_tile *tile;
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size_t n_pipes;
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size_t max_pipes;
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uint32_t width;
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uint32_t height;
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struct grdev_display_cache {
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grdev_pipe *pipe;
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grdev_display_target target;
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bool incomplete : 1;
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} *pipes;
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bool enabled : 1;
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bool public : 1;
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bool modified : 1;
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bool framed : 1;
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};
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grdev_display *grdev_find_display(grdev_session *session, const char *name);
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int grdev_display_new(grdev_display **out, grdev_session *session, const char *name);
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grdev_display *grdev_display_free(grdev_display *display);
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DEFINE_TRIVIAL_CLEANUP_FUNC(grdev_display*, grdev_display_free);
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/*
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* Pipes
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*/
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struct grdev_pipe_vtable {
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void (*free) (grdev_pipe *pipe);
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void (*enable) (grdev_pipe *pipe);
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void (*disable) (grdev_pipe *pipe);
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grdev_fb *(*target) (grdev_pipe *pipe);
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};
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struct grdev_pipe {
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const grdev_pipe_vtable *vtable;
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grdev_card *card;
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char *name;
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grdev_tile *tile;
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grdev_display_cache *cache;
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sd_event_source *vsync_src;
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uint32_t width;
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uint32_t height;
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uint32_t vrefresh;
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size_t max_fbs;
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grdev_fb *front;
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grdev_fb *back;
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grdev_fb **fbs;
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bool enabled : 1;
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bool running : 1;
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bool flip : 1;
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bool flipping : 1;
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};
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#define GRDEV_PIPE_INIT(_vtable, _card) ((grdev_pipe){ \
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.vtable = (_vtable), \
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.card = (_card), \
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})
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grdev_pipe *grdev_find_pipe(grdev_card *card, const char *name);
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int grdev_pipe_add(grdev_pipe *pipe, const char *name, size_t n_fbs);
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grdev_pipe *grdev_pipe_free(grdev_pipe *pipe);
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DEFINE_TRIVIAL_CLEANUP_FUNC(grdev_pipe*, grdev_pipe_free);
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void grdev_pipe_ready(grdev_pipe *pipe, bool running);
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void grdev_pipe_frame(grdev_pipe *pipe);
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void grdev_pipe_schedule(grdev_pipe *pipe, uint64_t frames);
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/*
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* Cards
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*/
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struct grdev_card_vtable {
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void (*free) (grdev_card *card);
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void (*enable) (grdev_card *card);
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void (*disable) (grdev_card *card);
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void (*commit) (grdev_card *card);
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void (*restore) (grdev_card *card);
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};
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struct grdev_card {
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const grdev_card_vtable *vtable;
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grdev_session *session;
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char *name;
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Hashmap *pipe_map;
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bool enabled : 1;
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bool modified : 1;
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};
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#define GRDEV_CARD_INIT(_vtable, _session) ((grdev_card){ \
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.vtable = (_vtable), \
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.session = (_session), \
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})
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grdev_card *grdev_find_card(grdev_session *session, const char *name);
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int grdev_card_add(grdev_card *card, const char *name);
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grdev_card *grdev_card_free(grdev_card *card);
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DEFINE_TRIVIAL_CLEANUP_FUNC(grdev_card*, grdev_card_free);
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/*
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* Sessions
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*/
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struct grdev_session {
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grdev_context *context;
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char *name;
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char *path;
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grdev_event_fn event_fn;
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void *userdata;
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unsigned long n_pins;
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Hashmap *card_map;
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Hashmap *display_map;
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bool custom : 1;
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bool managed : 1;
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bool enabled : 1;
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bool modified : 1;
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};
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grdev_session *grdev_session_pin(grdev_session *session);
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grdev_session *grdev_session_unpin(grdev_session *session);
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DEFINE_TRIVIAL_CLEANUP_FUNC(grdev_session*, grdev_session_unpin);
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/*
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* Contexts
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*/
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struct grdev_context {
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unsigned long ref;
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sd_event *event;
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sd_bus *sysbus;
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Hashmap *session_map;
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};
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