rom/hidds/vesa/vesagfx_init.c

   1 /*
   2     Copyright © 1995-2011, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: vesa gfx Hidd for standalone i386 AROS
   6     Lang: english
   7 */
   8
   9 #define __OOP_NOATTRBASES__
  10
  11 #include <proto/exec.h>
  12 #include <proto/graphics.h>
  13 #include <proto/oop.h>
  14 #include <exec/types.h>
  15 #include <exec/lists.h>
  16 #include <graphics/driver.h>
  17 #include <graphics/gfxbase.h>
  18 #include <hidd/graphics.h>
  19 #include <oop/oop.h>
  20 #include <utility/utility.h>
  21 #include <aros/symbolsets.h>
  22
  23 #include "hardware.h"
  24 #include "vesagfxclass.h"
  25
  26 #include LC_LIBDEFS_FILE
  27
  28 #include <aros/debug.h>
  29
  30 /*
  31  * The following two functions are candidates for inclusion into oop.library.
  32  * For slightly other implementation see incomplete Android-hosted graphics driver.
  33  */
  34 static void FreeAttrBases(const STRPTR *iftable, OOP_AttrBase *bases, ULONG num)
  35 {
  36     ULONG i;
  37
  38     for (i = 0; i < num; i++)
  39     {
  40         if (bases[i])
  41             OOP_ReleaseAttrBase(iftable[i]);
  42     }
  43 }
  44
  45 static BOOL GetAttrBases(const STRPTR *iftable, OOP_AttrBase *bases, ULONG num)
  46 {
  47     ULONG i;
  48
  49     for (i = 0; i < num; i++)
  50     {
  51         bases[i] = OOP_ObtainAttrBase(iftable[i]);
  52         if (!bases[i])
  53         {
  54             FreeAttrBases(iftable, bases, i);
  55             return FALSE;
  56         }
  57     }
  58
  59     return TRUE;
  60 }
  61
  62 /* These must stay in the same order as attrBases[] entries assignment in vesagfxclass.h */
  63 static const STRPTR interfaces[ATTRBASES_NUM] =
  64 {
  65     IID_Hidd_ChunkyBM,
  66     IID_Hidd_BitMap,
  67     IID_Hidd_Gfx,
  68     IID_Hidd_PixFmt,
  69     IID_Hidd_Sync,
  70     IID_Hidd
  71 };
  72
  73 static int PCVesa_Init(LIBBASETYPEPTR LIBBASE)
  74 {
  75     struct VesaGfx_staticdata *xsd = &LIBBASE->vsd;
  76     struct GfxBase *GfxBase;
  77     ULONG err;
  78     int res = FALSE;
  79
  80     if (!GetAttrBases(interfaces, xsd->attrBases, ATTRBASES_NUM))
  81         return FALSE;
  82
  83     InitSemaphore(&xsd->framebufferlock);
  84     InitSemaphore(&xsd->HW_acc);
  85
  86     if (!initVesaGfxHW(&xsd->data))
  87         return FALSE;
  88
  89     D(bug("[VESA] Init: Everything OK, installing driver\n"));
  90
  91     /*
  92      * Open graphics.library ourselves because we will close it
  93      * after adding the driver.
  94      * Autoinit code would close it only upon driver expunge.
  95      */
  96     GfxBase = (struct GfxBase *)OpenLibrary("graphics.library", 41);
  97     if (!GfxBase)
  98     {
  99         D(bug("[VESA] Failed to open graphics.library!\n"));
 100
 101         return FALSE;
 102     }
 103
 104     /*
 105      * It is unknown (and no way to know) what hardware part this driver uses.
 106      * In order to avoid conflicts with disk-based native-mode hardware
 107      * drivers it needs to be removed from the system when some other driver
 108      * is installed.
 109      * This is done by graphics.library if DDRV_BootMode is set to TRUE.
 110      */
 111     err = AddDisplayDriver(LIBBASE->vsd.vesagfxclass, NULL, DDRV_BootMode, TRUE, TAG_DONE);
 112
 113     D(bug("[VESA] AddDisplayDriver() result: %u\n", err));
 114     if (!err)
 115     {
 116         /* We use ourselves, and no one else does */
 117         LIBBASE->library.lib_OpenCnt = 1;
 118         res = TRUE;
 119     }
 120
 121     CloseLibrary(&GfxBase->LibNode);
 122     return res;
 123 }
 124
 125 ADD2INITLIB(PCVesa_Init, 0)