arch/all-native/hidd/vgagfx/vgagfx_init.c

   1 /*
   2     Copyright © 1995-2017, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: VGA Gfx Hidd for standalone AROS
   6     Lang: english
   7 */
   8
   9 #define __OOP_NOATTRBASES__
  10
  11 #include <aros/symbolsets.h>
  12 #include <exec/lists.h>
  13 #include <graphics/driver.h>
  14 #include <graphics/gfxbase.h>
  15 #include <oop/oop.h>
  16 #include <utility/utility.h>
  17 #include <proto/acpica.h>
  18 #include <proto/exec.h>
  19 #include <proto/graphics.h>
  20 #include <proto/oop.h>
  21
  22 #include LC_LIBDEFS_FILE
  23
  24 #undef csd
  25
  26 extern struct vgaModeDesc vgaDefMode[];
  27
  28 #undef  SDEBUG
  29 #undef  DEBUG
  30 #define DEBUG 0
  31 #include <aros/debug.h>
  32
  33 /* ACPICABase is optional */
  34 struct Library *ACPICABase = NULL;
  35
  36 static int VGAGfx_Init(LIBBASETYPEPTR LIBBASE)
  37 {
  38     struct GfxBase *GfxBase;
  39     struct VGAGfx_staticdata *csd = &LIBBASE->vsd;
  40     struct vgaModeEntry *entry;
  41     BOOL res = FALSE;
  42     int i;
  43
  44     struct OOP_ABDescr abd[] =
  45     {
  46         { IID_Hidd              , &HiddAttrBase         },
  47         { IID_Hidd_BitMap,              &HiddBitMapAttrBase },
  48         { IID_Hidd_ChunkyBM,    &HiddChunkyBMAttrBase },
  49         { IID_Hidd_PixFmt,              &HiddPixFmtAttrBase },
  50         { IID_Hidd_Gfx,         &HiddGfxAttrBase },
  51         { IID_Hidd_Sync,                &HiddSyncAttrBase },
  52         /* Private bases */
  53         { IID_Hidd_BitMap_VGA,  &HiddVGABitMapAB },
  54         { NULL, NULL }
  55     };
  56
  57     /* We are not compatible with VESA driver */
  58     if (OOP_FindClass("hidd.gfx.vesa"))
  59     {
  60         D(bug("[VGAGfx] VESA driver found, not initializing VGA\n"));
  61         return FALSE;
  62     }
  63
  64     if ((ACPICABase = OpenLibrary("acpica.library", 0)))
  65     {
  66         ACPI_TABLE_FADT *fadt;
  67
  68         if ((AcpiGetTable("FACP", 1, (ACPI_TABLE_HEADER **)&fadt) == AE_OK) &&
  69             (fadt->BootFlags & ACPI_FADT_NO_VGA))
  70         {
  71             D(bug("[VGAGfx] Disabled by ACPI\n"));
  72             CloseLibrary(ACPICABase);
  73             ACPICABase = NULL;
  74             return FALSE;
  75         }
  76         CloseLibrary(ACPICABase);
  77         ACPICABase = NULL;
  78     }
  79
  80     InitSemaphore(&csd->sema);
  81     InitSemaphore(&csd->HW_acc);
  82     NEWLIST(&csd->modelist);
  83
  84     if (!OOP_ObtainAttrBases(abd))
  85         return FALSE;
  86
  87     /* Insert default videomodes */
  88
  89     for (i=0; i < NUM_MODES; i++)
  90     {
  91         entry = AllocMem(sizeof(struct vgaModeEntry),MEMF_CLEAR|MEMF_PUBLIC);
  92         if (entry)
  93         {
  94             entry->Desc=&(vgaDefMode[i]);
  95             ADDHEAD(&csd->modelist,entry);
  96             D(bug("Added default mode: %s\n", entry->Desc->name));
  97         }
  98     }
  99
 100     D(bug("[VGAGfx] Init: Everything OK, installing driver\n"));
 101
 102     /*
 103      * Open graphics.library ourselves because we will close it
 104      * after adding the driver.
 105      * Autoinit code would close it only upon driver expunge.
 106      */
 107     GfxBase = (struct GfxBase *)OpenLibrary("graphics.library", 41);
 108     if (!GfxBase)
 109     {
 110         D(bug("[VGAGfx] Failed to open graphics.library!\n"));
 111
 112         return FALSE;
 113     }
 114
 115     csd->basebm = OOP_FindClass(CLID_Hidd_BitMap);
 116
 117     /*
 118      * It is unknown (and no way to know) what hardware part this driver uses.
 119      * In order to avoid conflicts with disk-based native-mode hardware
 120      * drivers it needs to be removed from the system when some other driver
 121      * is installed.
 122      * This is done by graphics.library if DDRV_BootMode is set to TRUE.
 123      */
 124     i = AddDisplayDriver(csd->vgaclass, NULL, DDRV_BootMode, TRUE, TAG_DONE);
 125
 126     D(bug("[VGAGfx] AddDisplayDriver() result: %u\n", i));
 127     if (!i)
 128     {
 129         /* We use ourselves, and no one else does */
 130         LIBBASE->library.lib_OpenCnt = 1;
 131         res = TRUE;
 132     }
 133
 134     CloseLibrary(&GfxBase->LibNode);
 135     return res;
 136 }
 137
 138 ADD2INITLIB(VGAGfx_Init, 0)