Mercurial > sdl-ios-xcode
diff src/video/fbcon/matrox_mmio.h @ 0:74212992fb08
Initial revision
author | Sam Lantinga <slouken@lokigames.com> |
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date | Thu, 26 Apr 2001 16:45:43 +0000 |
parents | |
children | e8157fcb3114 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/video/fbcon/matrox_mmio.h Thu Apr 26 16:45:43 2001 +0000 @@ -0,0 +1,55 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the Free + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Sam Lantinga + slouken@devolution.com +*/ + +#ifdef SAVE_RCSID +static char rcsid = + "@(#) $Id$"; +#endif + +/* MGA register definitions */ + +#include "matrox_regs.h" + +/* MGA control macros */ + +#define mga_in8(reg) *(volatile Uint8 *)(mapped_io + (reg)) +#define mga_in32(reg) *(volatile Uint32 *)(mapped_io + (reg)) + +#define mga_out8(reg,v) *(volatile Uint8 *)(mapped_io + (reg)) = v; +#define mga_out32(reg,v) *(volatile Uint32 *)(mapped_io + (reg)) = v; + + +/* Wait for fifo space */ +#define mga_wait(space) \ +{ \ + while ( mga_in8(MGAREG_FIFOSTATUS) < space ) \ + ; \ +} + + +/* Wait for idle accelerator */ +#define mga_waitidle() \ +{ \ + while ( mga_in32(MGAREG_STATUS) & 0x10000 ) \ + ; \ +} +