source: mainline/uspace/srv/hid/display/main.c@ 6af4b4f

/*
 * Copyright (c) 2019 Jiri Svoboda
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup display
 * @{
 */
/**
 * @file Display server main
 */

#include <async.h>
#include <disp_srv.h>
#include <errno.h>
#include <gfx/context.h>
#include <str_error.h>
#include <io/log.h>
#include <ipc/services.h>
#include <ipcgfx/server.h>
#include <loc.h>
#include <stdio.h>
#include <task.h>
#include "display.h"
#include "window.h"

#define NAME  "display"

static void display_client_conn(ipc_call_t *, void *);

/** Initialize display server */
static errno_t display_srv_init(void)
{
        ds_display_t *disp = NULL;
        errno_t rc;

        rc = ds_display_create(&disp);
        if (rc != EOK)
                goto error;

        log_msg(LOG_DEFAULT, LVL_DEBUG, "display_srv_init()");

        async_set_fallback_port_handler(display_client_conn, disp);

        rc = loc_server_register(NAME);
        if (rc != EOK) {
                log_msg(LOG_DEFAULT, LVL_ERROR, "Failed registering server: %s.", str_error(rc));
                rc = EEXIST;
        }

        service_id_t sid;
        rc = loc_service_register(SERVICE_NAME_DISPLAY, &sid);
        if (rc != EOK) {
                log_msg(LOG_DEFAULT, LVL_ERROR, "Failed registering service: %s.", str_error(rc));
                rc = EEXIST;
                goto error;
        }

        return EOK;
error:
        if (disp != NULL)
                ds_display_destroy(disp);
        return rc;
}

/** Handle client connection to display server */
static void display_client_conn(ipc_call_t *icall, void *arg)
{
        display_srv_t srv;
        sysarg_t wnd_id;
        sysarg_t svc_id;
        ds_window_t *wnd;
        ds_display_t *disp = (ds_display_t *) arg;
        gfx_context_t *gc;

        log_msg(LOG_DEFAULT, LVL_NOTE, "display_client_conn arg1=%zu arg2=%zu arg3=%zu arg4=%zu.",
            ipc_get_arg1(icall), ipc_get_arg2(icall), ipc_get_arg3(icall),
            ipc_get_arg4(icall));

        (void) icall;
        (void) arg;

        svc_id = ipc_get_arg2(icall);
        wnd_id = ipc_get_arg3(icall);

        if (svc_id != 0) {
                /* Display management */
                srv.ops = &display_srv_ops;
                srv.arg = disp;

                display_conn(icall, &srv);
        } else {
                /* Window GC */
                wnd = ds_display_find_window(disp, wnd_id);
                if (wnd == NULL) {
                        async_answer_0(icall, ENOENT);
                        return;
                }

                gc = ds_window_get_ctx(wnd);
                gc_conn(icall, gc);
        }
}

int main(int argc, char *argv[])
{
        errno_t rc;

        printf("%s: Display server\n", NAME);

        if (log_init(NAME) != EOK) {
                printf(NAME ": Failed to initialize logging.\n");
                return 1;
        }

        rc = display_srv_init();
        if (rc != EOK)
                return 1;

        printf(NAME ": Accepting connections.\n");
        task_retval(0);
        async_manager();

        return 0;
}

/** @}
 */