-
Notifications
You must be signed in to change notification settings - Fork 2
/
lutGenerator.c
113 lines (101 loc) · 2.58 KB
/
lutGenerator.c
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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
/*
* Copyright (c) 2023 OscillatorIMP Digital
* Gwenhael Goavec-Merou <[email protected]>
*/
#include <stdint.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <linux/types.h>
/* memory management */
#include <sys/mman.h>
#include <lutGene_core/lutGene_config.h>
#include <lutGenerator.h>
int lutGeneratorComplex_fill_ram(const char *filename, const char *fileData, const int len)
{
int i;
uint32_t data[len * 2];
int aa, bb, size = 2 * len * sizeof(uint32_t);
int dev = open(filename, O_RDWR);
if (dev < 0) {
printf("%s: open failed\n", filename);
return dev;
}
printf("configuration\n");
FILE *data_fd = fopen(fileData, "r");
if (data_fd == NULL) {
printf("%s: open failed\n", fileData);
close(dev);
return EXIT_FAILURE;
}
for (i = 0; i < 2*len; i += 2) {
fscanf(data_fd, "%d %d ", &aa, &bb);
data[i] = aa;
data[i+1] = bb;
}
do {
i = write(dev, data, size);
size -= i;
} while (size > 0);
fclose(data_fd);
close(dev);
return 0;
}
int lutGenerator_set_prescaler(const char *filename, const uint32_t prescaler)
{
int ret;
/* open the device to do others operations */
int dev = open(filename, O_RDWR);
if (dev < 0) {
printf("%s: open failed\n", filename);
return dev;
}
ret = ioctl(dev, LUTGENE_SET(LUTGENE_PRESCALER), &prescaler);
close(dev);
return ret;
}
int lutGenerator_set_ram_length(const char *filename, const int len)
{
int ret;
/* open the device to do others operations */
int dev = open(filename, O_RDWR);
if (dev < 0) {
printf("%s: open failed\n", filename);
return dev;
}
ret = ioctl(dev, LUTGENE_SET(LUTGENE_RAM_LENGTH), &len);
close(dev);
return ret;
}
int lutGenerator_enable(const char *filename, const uint8_t enable)
{
int ret;
/* open the device to do others operations */
int dev = open(filename, O_RDWR);
if (dev < 0) {
printf("%s: open failed\n", filename);
return dev;
}
ret = ioctl(dev, LUTGENE_SET(LUTGENE_ENABLE), &enable);
close(dev);
return ret;
}
int lutGeneratorComplex_configure(const char *filename, const char *fileData,
const int len, const uint8_t enable, const uint32_t prescaler)
{
int ret;
/* fill the RAM with fileData content */
if ((ret = lutGeneratorComplex_fill_ram(filename, fileData, len)) != 0)
return ret;
/* configure prescaler */
if ((ret = lutGenerator_set_prescaler(filename, prescaler)) != 0)
return ret;
/* configure ram_length */
if ((ret = lutGenerator_set_ram_length(filename, len)) != 0)
return ret;
/* enable/disable */
return lutGenerator_enable(filename, enable);
}