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/*-*- 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/>.
***/
#pragma once
#include <inttypes.h>
#include <libudev.h>
#include <stdbool.h>
#include <stdlib.h>
#include <systemd/sd-bus.h>
#include <systemd/sd-event.h>
#include "grdev.h"
#include "hashmap.h"
#include "list.h"
#include "util.h"
typedef struct grdev_tile grdev_tile;
typedef struct grdev_display_cache grdev_display_cache;
typedef struct grdev_pipe_vtable grdev_pipe_vtable;
typedef struct grdev_pipe grdev_pipe;
typedef struct grdev_card_vtable grdev_card_vtable;
typedef struct grdev_card grdev_card;
/*
* DRM cards
*/
bool grdev_is_drm_card(grdev_card *card);
grdev_card *grdev_find_drm_card(grdev_session *session, dev_t devnum);
int grdev_drm_card_new(grdev_card **out, grdev_session *session, struct udev_device *ud);
void grdev_drm_card_hotplug(grdev_card *card, struct udev_device *ud);
/*
* Displays
*/
enum {
GRDEV_TILE_LEAF,
GRDEV_TILE_NODE,
GRDEV_TILE_CNT
};
struct grdev_tile {
LIST_FIELDS(grdev_tile, children_by_node);
grdev_tile *parent;
grdev_display *display;
uint32_t x;
uint32_t y;
unsigned int rotate;
unsigned int flip;
uint32_t cache_w;
uint32_t cache_h;
unsigned int type;
union {
struct {
grdev_pipe *pipe;
} leaf;
struct {
size_t n_children;
LIST_HEAD(grdev_tile, child_list);
} node;
};
};
int grdev_tile_new_leaf(grdev_tile **out, grdev_pipe *pipe);
int grdev_tile_new_node(grdev_tile **out);
grdev_tile *grdev_tile_free(grdev_tile *tile);
DEFINE_TRIVIAL_CLEANUP_FUNC(grdev_tile*, grdev_tile_free);
struct grdev_display {
grdev_session *session;
char *name;
void *userdata;
size_t n_leafs;
grdev_tile *tile;
size_t n_pipes;
size_t max_pipes;
uint32_t width;
uint32_t height;
struct grdev_display_cache {
grdev_pipe *pipe;
grdev_display_target target;
bool incomplete : 1;
} *pipes;
bool enabled : 1;
bool public : 1;
bool modified : 1;
bool framed : 1;
};
grdev_display *grdev_find_display(grdev_session *session, const char *name);
int grdev_display_new(grdev_display **out, grdev_session *session, const char *name);
grdev_display *grdev_display_free(grdev_display *display);
DEFINE_TRIVIAL_CLEANUP_FUNC(grdev_display*, grdev_display_free);
/*
* Pipes
*/
struct grdev_pipe_vtable {
void (*free) (grdev_pipe *pipe);
void (*enable) (grdev_pipe *pipe);
void (*disable) (grdev_pipe *pipe);
grdev_fb *(*target) (grdev_pipe *pipe);
};
struct grdev_pipe {
const grdev_pipe_vtable *vtable;
grdev_card *card;
char *name;
grdev_tile *tile;
grdev_display_cache *cache;
sd_event_source *vsync_src;
uint32_t width;
uint32_t height;
uint32_t vrefresh;
size_t max_fbs;
grdev_fb *front;
grdev_fb *back;
grdev_fb **fbs;
bool enabled : 1;
bool running : 1;
bool flip : 1;
bool flipping : 1;
};
#define GRDEV_PIPE_INIT(_vtable, _card) ((grdev_pipe){ \
.vtable = (_vtable), \
.card = (_card), \
})
grdev_pipe *grdev_find_pipe(grdev_card *card, const char *name);
int grdev_pipe_add(grdev_pipe *pipe, const char *name, size_t n_fbs);
grdev_pipe *grdev_pipe_free(grdev_pipe *pipe);
DEFINE_TRIVIAL_CLEANUP_FUNC(grdev_pipe*, grdev_pipe_free);
void grdev_pipe_ready(grdev_pipe *pipe, bool running);
void grdev_pipe_frame(grdev_pipe *pipe);
void grdev_pipe_schedule(grdev_pipe *pipe, uint64_t frames);
/*
* Cards
*/
struct grdev_card_vtable {
void (*free) (grdev_card *card);
void (*enable) (grdev_card *card);
void (*disable) (grdev_card *card);
void (*commit) (grdev_card *card);
void (*restore) (grdev_card *card);
};
struct grdev_card {
const grdev_card_vtable *vtable;
grdev_session *session;
char *name;
Hashmap *pipe_map;
bool enabled : 1;
bool modified : 1;
};
#define GRDEV_CARD_INIT(_vtable, _session) ((grdev_card){ \
.vtable = (_vtable), \
.session = (_session), \
})
grdev_card *grdev_find_card(grdev_session *session, const char *name);
int grdev_card_add(grdev_card *card, const char *name);
grdev_card *grdev_card_free(grdev_card *card);
DEFINE_TRIVIAL_CLEANUP_FUNC(grdev_card*, grdev_card_free);
/*
* Sessions
*/
struct grdev_session {
grdev_context *context;
char *name;
char *path;
grdev_event_fn event_fn;
void *userdata;
unsigned long n_pins;
Hashmap *card_map;
Hashmap *display_map;
bool custom : 1;
bool managed : 1;
bool enabled : 1;
bool modified : 1;
};
grdev_session *grdev_session_pin(grdev_session *session);
grdev_session *grdev_session_unpin(grdev_session *session);
DEFINE_TRIVIAL_CLEANUP_FUNC(grdev_session*, grdev_session_unpin);
/*
* Contexts
*/
struct grdev_context {
unsigned long ref;
sd_event *event;
sd_bus *sysbus;
Hashmap *session_map;
};
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