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/*
* Copyright © 2013 Renesas Solutions Corp.
* Copyright © 2011 Kristian Høgsberg
* Copyright © 2011 Benjamin Franzke
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Takanari Hayama <taki@igel.co.jp>
*
* Based on wayland-drm.c by the following authors:
* Kristian Høgsberg <krh@bitplanet.net>
* Benjamin Franzke <benjaminfranzke@googlemail.com>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stddef.h>
#include <unistd.h>
#include <errno.h>
#include <xf86drm.h>
#include <wayland-client.h>
#include "wayland-kms-auth.h"
#include "wayland-kms-client-protocol.h"
#if defined(DEBUG)
# define WLKMS_DEBUG(s, x...) { printf(s, ##x); }
#else
# define WLKMS_DEBUG(s, x...) { }
#endif
struct kms_auth {
struct wl_display *wl_display; /* wl_display facing my server */
struct wl_event_queue *wl_queue;
struct wl_registry *wl_registry;
struct wl_kms *wl_kms;
int authenticated;
};
/*
* Sync with the server
*/
static void wayland_sync_callback(void *data, struct wl_callback *callback, uint32_t serial)
{
int *done = data;
*done = 1;
WLKMS_DEBUG("%s: %s: %d\n", __FILE__, __func__, __LINE__);
wl_callback_destroy(callback);
}
static const struct wl_callback_listener wayland_sync_listener = {
.done = wayland_sync_callback
};
/*
* sync with the server
*/
int wayland_sync(struct kms_auth *auth)
{
struct wl_callback *callback;
int ret = 0, done = 0;
WLKMS_DEBUG("%s: %s: %d\n", __FILE__, __func__, __LINE__);
callback = wl_display_sync(auth->wl_display);
wl_callback_add_listener(callback, &wayland_sync_listener, &done);
wl_proxy_set_queue((struct wl_proxy*)callback, auth->wl_queue);
while (ret >= 0 && !done) {
ret = wl_display_dispatch_queue(auth->wl_display, auth->wl_queue);
}
if (!done) {
wl_callback_destroy(callback);
}
return ret;
}
/*
* For the nested authentication
*/
static void wayland_kms_handle_authenticated(void *data, struct wl_kms *kms)
{
struct kms_auth *auth = data;
WLKMS_DEBUG("%s: %s: %d: authenticated.\n", __FILE__, __func__, __LINE__);
auth->authenticated = 1;
}
static void wayland_kms_handle_format(void *data, struct wl_kms *kms, uint32_t format)
{
}
static void wayland_kms_handle_device(void *data, struct wl_kms *kms, const char *device)
{
}
static const struct wl_kms_listener wayland_kms_listener = {
.authenticated = wayland_kms_handle_authenticated,
.format = wayland_kms_handle_format,
.device = wayland_kms_handle_device
};
/*
* registry routines to the server global objects
*/
static void wayland_registry_handle_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version)
{
struct kms_auth *auth = data;
WLKMS_DEBUG("%s: %s: %d\n", __FILE__, __func__, __LINE__);
/*
* we need to connect to the wl_kms objects
*/
if (!strcmp(interface, "wl_kms")) {
auth->wl_kms = wl_registry_bind(registry, name, &wl_kms_interface, version);
wl_kms_add_listener(auth->wl_kms, &wayland_kms_listener, auth);
}
}
static void wayland_registry_handle_global_remove(void *data, struct wl_registry *registry, uint32_t name)
{
}
static const struct wl_registry_listener wayland_registry_listener = {
.global = wayland_registry_handle_global,
.global_remove = wayland_registry_handle_global_remove,
};
int
kms_auth_request(struct kms_auth *auth, uint32_t magic)
{
auth->authenticated = 0;
wl_kms_authenticate(auth->wl_kms, magic);
if (wayland_sync(auth) < 0 || !auth->authenticated)
return -1;
return 0;
}
struct kms_auth*
kms_auth_init(struct wl_display *display)
{
struct kms_auth *auth;
if (!(auth = calloc(1, sizeof(struct kms_auth))))
return NULL;
auth->wl_display = display;
auth->wl_queue = wl_display_create_queue(auth->wl_display);
auth->wl_registry = wl_display_get_registry(auth->wl_display);
wl_proxy_set_queue((struct wl_proxy*)auth->wl_registry, auth->wl_queue);
wl_registry_add_listener(auth->wl_registry, &wayland_registry_listener, auth);
if (wayland_sync(auth) < 0) {
free(auth);
return NULL;
}
return auth;
}
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