milkymist_tmu.h

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/*  milkymist_tmu.h
 *
 *  Milkymist TMU driver for RTEMS
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.org/license/LICENSE.
 *
 *  COPYRIGHT (c) 2010 Sebastien Bourdeauducq
 */
 
#ifndef __MILKYMIST_TMU_H_
#define __MILKYMIST_TMU_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
/* Ioctls */
#define TMU_EXECUTE             0x5400
#define TMU_EXECUTE_NONBLOCK    0x5401
#define TMU_EXECUTE_WAIT        0x5402
 
struct tmu_vertex {
  int x;
  int y;
} __attribute__((packed));
 
struct tmu_td {
  unsigned int flags;
  unsigned int hmeshlast;
  unsigned int vmeshlast;
  unsigned int brightness;
  unsigned short chromakey;
  struct tmu_vertex *vertices;
  unsigned short *texfbuf;
  unsigned int texhres;
  unsigned int texvres;
  unsigned int texhmask;
  unsigned int texvmask;
  unsigned short *dstfbuf;
  unsigned int dsthres;
  unsigned int dstvres;
  int dsthoffset;
  int dstvoffset;
  unsigned int dstsquarew;
  unsigned int dstsquareh;
  unsigned int alpha;
 
  bool invalidate_before;
  bool invalidate_after;
};
 
#define TMU_BRIGHTNESS_MAX     (63)
#define TMU_MASK_NOFILTER      (0x3ffc0)
#define TMU_MASK_FULL          (0x3ffff)
#define TMU_FIXEDPOINT_SHIFT   (6)
#define TMU_ALPHA_MAX          (63)
#define TMU_MESH_MAXSIZE       (128)
 
#define TMU_FLAG_CHROMAKEY     (2)
#define TMU_FLAG_ADDITIVE      (4)
 
rtems_device_driver tmu_initialize(
  rtems_device_major_number major,
  rtems_device_minor_number minor,
  void *arg
);
 
rtems_device_driver tmu_control(
  rtems_device_major_number major,
  rtems_device_minor_number minor,
  void *arg
);
 
#define TMU_DRIVER_TABLE_ENTRY {tmu_initialize, \
NULL, NULL, NULL, NULL, tmu_control}
 
#ifdef __cplusplus
}
#endif
 
#endif /* __MILKYMIST_TMU_H_ */