main.c

/*
 * Copyright (c) 2006 Ondrej Palkovsky
 * 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.
 */

#include <ipc/services.h>
#include <ipc/ns.h>
#include <sysinfo.h>
#include <async.h>
#include <as.h>
#include <align.h>
#include <errno.h>
#include <stdio.h>

#include "fb.h"
#include "ega.h"
#include "msim.h"
#include "ski.h"
#include "sgcn.h"
#include "niagara.h"
#include "main.h"

#define NAME "fb"

void receive_comm_area(ipc_callid_t callid, ipc_call_t *call, void **area)
{
        void *dest;
        
        dest = as_get_mappable_page(IPC_GET_ARG2(*call));
        if (async_answer_1(callid, EOK, (sysarg_t) dest) == 0) {
                if (*area)
                        as_area_destroy(*area);
                *area = dest;
        }
}

int main(int argc, char *argv[])
{
        printf("%s: HelenOS Framebuffer service\n", NAME);
        
        bool initialized = false;
        sysarg_t fb_present;
        sysarg_t fb_kind;
        
        if (sysinfo_get_value("fb", &fb_present) != EOK)
                fb_present = false;
        
        if (sysinfo_get_value("fb.kind", &fb_kind) != EOK) {
                printf("%s: Unable to detect framebuffer configuration\n", NAME);
                return -1;
        }
        
#ifdef FB_ENABLED
        if ((!initialized) && (fb_kind == 1)) {
                if (fb_init() == 0)
                        initialized = true;
        }
#endif
#ifdef EGA_ENABLED
        if ((!initialized) && (fb_kind == 2)) {
                if (ega_init() == 0)
                        initialized = true;
        }
#endif
#ifdef MSIM_ENABLED
        if ((!initialized) && (fb_kind == 3)) {
                if (msim_init() == 0)
                        initialized = true;
        }
#endif
#ifdef SGCN_ENABLED
        if ((!initialized) && (fb_kind == 4)) {
                if (sgcn_init() == 0)
                        initialized = true;
        }
#endif
#ifdef NIAGARA_ENABLED
        if ((!initialized) && (fb_kind == 5)) {
                if (niagara_init() == 0)
                        initialized = true;
        }
#endif
#ifdef SKI_ENABLED
        if ((!initialized) && (fb_kind == 6)) {
                if (ski_init() == 0)
                        initialized = true;
        }
#endif

        if (!initialized)
                return -1;
        
        if (service_register(SERVICE_VIDEO) != EOK)
                return -1;
        
        printf("%s: Accepting connections\n", NAME);
        async_manager();
        
        /* Never reached */
        return 0;
}

---