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/* milkymist_pfpu.h
*
* Milkymist PFPU 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.com/license/LICENSE.
*
* COPYRIGHT (c) 2010 Sebastien Bourdeauducq
*/
#ifndef __MILKYMIST_PFPU_H_
#define __MILKYMIST_PFPU_H_
#ifdef __cplusplus
extern "C" {
#endif
/* Ioctls */
#define PFPU_EXECUTE 0x4600
#define PFPU_PROGSIZE (2048)
#define PFPU_REG_COUNT (128)
struct pfpu_td {
unsigned int *output;
unsigned int hmeshlast;
unsigned int vmeshlast;
unsigned int *program;
unsigned int progsize;
float *registers;
bool update; /* < shall we update the "registers" array after completion */
bool invalidate; /* < shall we invalidate L1 data cache after completion */
};
rtems_device_driver pfpu_initialize(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
);
rtems_device_driver pfpu_control(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
);
#define PFPU_DRIVER_TABLE_ENTRY {pfpu_initialize, \
NULL, NULL, NULL, NULL, pfpu_control}
#ifdef __cplusplus
}
#endif
#endif /* __MILKYMIST_PFPU_H_ */
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