blob: 7519bba03b04574b20558ff827757389ad7bf32c (
plain)
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
|
/*
* Copyright (C) 2003 Deep Blue Solutions, Ltd, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Support functions for calculating clocks/divisors for the ICST
* clock generators. See http://www.idt.com/ for more information
* on these devices.
*/
#ifndef ICST_H
#define ICST_H
struct icst_params {
unsigned long ref;
unsigned long vco_max; /* inclusive */
unsigned long vco_min; /* exclusive */
unsigned short vd_min; /* inclusive */
unsigned short vd_max; /* inclusive */
unsigned char rd_min; /* inclusive */
unsigned char rd_max; /* inclusive */
const unsigned char *s2div; /* chip specific s2div array */
const unsigned char *idx2s; /* chip specific idx2s array */
};
struct icst_vco {
unsigned short v;
unsigned char r;
unsigned char s;
};
unsigned long icst_hz(const struct icst_params *p, struct icst_vco vco);
struct icst_vco icst_hz_to_vco(const struct icst_params *p, unsigned long freq);
/*
* ICST307 VCO frequency must be between 6MHz and 200MHz (3.3 or 5V).
* This frequency is pre-output divider.
*/
#define ICST307_VCO_MIN 6000000
#define ICST307_VCO_MAX 200000000
extern const unsigned char icst307_s2div[];
extern const unsigned char icst307_idx2s[];
/*
* ICST525 VCO frequency must be between 10MHz and 200MHz (3V) or 320MHz (5V).
* This frequency is pre-output divider.
*/
#define ICST525_VCO_MIN 10000000
#define ICST525_VCO_MAX_3V 200000000
#define ICST525_VCO_MAX_5V 320000000
extern const unsigned char icst525_s2div[];
extern const unsigned char icst525_idx2s[];
#endif
|
