diff options
Diffstat (limited to 'bsps/lm32/include/bsp/milkymist_pfpu.h')
| -rw-r--r-- | bsps/lm32/include/bsp/milkymist_pfpu.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/bsps/lm32/include/bsp/milkymist_pfpu.h b/bsps/lm32/include/bsp/milkymist_pfpu.h new file mode 100644 index 0000000000..73ea5fa28e --- /dev/null +++ b/bsps/lm32/include/bsp/milkymist_pfpu.h @@ -0,0 +1,72 @@ +/** + * @file + * @ingroup lm32_milkymist_pfpu lm32_milkymist_shared + * @brief Milkymist PFPU driver + */ + +/* 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.org/license/LICENSE. + * + * COPYRIGHT (c) 2010 Sebastien Bourdeauducq + */ + +/** + * @defgroup lm32_milkymist_pfpu Milkymist PFPU + * @ingroup lm32_milkymist_shared + * @brief Milkymist PFPU driver + * @{ + */ + +#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; + /** @brief shall we update the "registers" array after completion */ + bool update; + /** @brief shall we invalidate L1 data cache after completion */ + bool invalidate; +}; + +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_ */ |