blob: dfa6c61aa72f4f38fd9b5ef86983025b5dd32df2 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
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.com/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_ */
|
