arch/all-linux/hidd/linuxfb/startup.c

   1 /*
   2     Copyright © 1995-2013, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: gfx Hidd for linux framebuffer
   6     Lang: english
   7 */
   8
   9 /*
  10  * A newstyle startup code for resident display drivers.
  11  *
  12  * Now it's the job of the driver to add ifself to the system.
  13  * The driver does not have to be a library anymore, it can be
  14  * plain executable which is started from DEVS:Monitors.
  15  *
  16  * The job of driver startup code is to create all necessary
  17  * classes (driver class and bitmap class) and create as many
  18  * driver objects as possible. Every object needs to be given
  19  * to AddDisplayDriverA() in order to become functional.
  20  *
  21  * When the transition completes, kludges from bootmenu and
  22  * dosboot will be removed. Noone will care about library
  23  * open etc.
  24  */
  25
  26 #include <aros/debug.h>
  27 #include <aros/symbolsets.h>
  28 #include <graphics/gfxbase.h>
  29 #include <proto/exec.h>
  30 #include <proto/graphics.h>
  31 #include <proto/oop.h>
  32 #include <hidd/unixio.h>
  33
  34 #include LC_LIBDEFS_FILE
  35
  36 /* Prevent redefinition of struct timeval */
  37 #define timeval sys_timeval
  38
  39 /* avoid conflicts between our __unused define and the ones that might come in
  40    via fcntl.h */
  41 #undef __unused
  42 #include <fcntl.h>
  43
  44 #undef timeval
  45
  46 #undef LSD
  47 #define LSD(cl) (&LIBBASE->lsd)
  48
  49 static int LinuxFB_Startup(LIBBASETYPEPTR LIBBASE)
  50 {
  51     int res = FALSE;
  52     struct GfxBase *GfxBase;
  53     ULONG err;
  54     struct TagItem gfx_attrs[] =
  55     {
  56         {aHidd_LinuxFB_File, 0},
  57         {TAG_DONE          , 0}
  58     };
  59
  60     D(bug("[LinuxFB] LinuxFB_Startup()\n"));
  61
  62     GfxBase = (struct GfxBase *)OpenLibrary("graphics.library", 41);
  63     D(bug("[LinuxFB_Startup] GfxBase 0x%p\n", GfxBase));
  64     if (!GfxBase)
  65         return FALSE;
  66
  67     /* TODO: In future we will support more framebuffers */
  68     gfx_attrs[0].ti_Data = Hidd_UnixIO_OpenFile(LIBBASE->lsd.unixio, "/dev/fb0", O_RDWR, 0, NULL);
  69     if (gfx_attrs[0].ti_Data == -1)
  70     {
  71         CloseLibrary(&GfxBase->LibNode);
  72         return FALSE;
  73     }
  74
  75     /*
  76      * In future we will be able to call this several times in a loop.
  77      * This will allow us to create several displays.
  78      */
  79     err = AddDisplayDriverA(LIBBASE->lsd.gfxclass, gfx_attrs, NULL);
  80
  81     D(bug("[LinuxFB_Startup] AddDisplayDriver() result: %u\n", err));
  82
  83     if (!err)
  84     {
  85         res = TRUE;
  86         /* We use ourselves, and noone else */
  87         LIBBASE->library.lib_OpenCnt = 1;
  88     }
  89
  90     CloseLibrary(&GfxBase->LibNode);
  91
  92     return res;
  93 }
  94
  95 static int LinuxFB_Test(LIBBASETYPEPTR LIBBASE)
  96 {
  97     OOP_Class *x11 = OOP_FindClass("hidd.gfx.x11");
  98
  99     D(bug("[LinuxFB_Test] X11 class 0x%p\n", x11));
 100     return x11 ? FALSE : TRUE;
 101 }
 102
 103 /* This routine must be called AFTER everything all other initialization was run */
 104 ADD2INITLIB(LinuxFB_Startup, 10);
 105
 106 ADD2INITLIB(LinuxFB_Test, -10);