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Diffstat (limited to 'distrib/sdl-1.2.15/src/video/fbcon/matrox_mmio.h')
| -rw-r--r-- | distrib/sdl-1.2.15/src/video/fbcon/matrox_mmio.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/video/fbcon/matrox_mmio.h b/distrib/sdl-1.2.15/src/video/fbcon/matrox_mmio.h new file mode 100644 index 0000000..a1cf203 --- /dev/null +++ b/distrib/sdl-1.2.15/src/video/fbcon/matrox_mmio.h @@ -0,0 +1,51 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2012 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Sam Lantinga + slouken@libsdl.org +*/ +#include "SDL_config.h" + +/* 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 ) \ + ; \ +} + |