/[dynamips]/trunk/nmc93cX6.h
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Annotation of /trunk/nmc93cX6.h

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Revision 10 - (hide annotations)
Sat Oct 6 16:29:14 2007 UTC (12 years ago) by dpavlin
Original Path: upstream/dynamips-0.2.7/nmc93cX6.h
File MIME type: text/plain
File size: 1860 byte(s)
dynamips-0.2.7

1 dpavlin 8 /*
2     * Cisco router simulation platform.
3     * Copyright (c) 2005,2006 Christophe Fillot.
4     *
5     * NMC93C46/NMC93C56 Serial EEPROM.
6     */
7    
8     #ifndef __NMC93CX6_H__
9     #define __NMC93CX6_H__
10    
11     #include <sys/types.h>
12     #include "utils.h"
13     #include "cisco_eeprom.h"
14    
15     /* EEPROM types */
16     enum {
17     EEPROM_TYPE_NMC93C46,
18     EEPROM_TYPE_NMC93C56,
19     };
20    
21     /* 8 groups with 4 differents bits (clock,select,data_in,data_out) */
22     #define NMC93CX6_MAX_EEPROM_PER_GROUP 8
23    
24     /* NMC93C46 EEPROM command bit length */
25     #define NMC93C46_CMD_BITLEN 9
26    
27     /* NMC93C56 EEPROM command bit length */
28     #define NMC93C56_CMD_BITLEN 11
29    
30     /* NMC93C46 EEPROM data bit length */
31     #define NMC93CX6_CMD_DATALEN 16
32    
33     /* NMC93C46 EEPROM commands: SB (1) OP(2) Address(6/9) */
34     #define NMC93CX6_CMD_CONTROL (0x1 | 0x0)
35     #define NMC93CX6_CMD_WRDS (0x1 | 0x0 | 0x00)
36     #define NMC93CX6_CMD_ERASE_ALL (0x1 | 0x0 | 0x08)
37     #define NMC93CX6_CMD_WRITE_ALL (0x1 | 0x0 | 0x10)
38     #define NMC93CX6_CMD_WREN (0x1 | 0x0 | 0x18)
39     #define NMC93CX6_CMD_READ (0x1 | 0x2)
40     #define NMC93CX6_CMD_WRITE (0x1 | 0x4)
41     #define NMC93CX6_CMD_ERASE (0x1 | 0x6)
42    
43     struct nmc93cX6_eeprom_def {
44     u_int clock_bit;
45     u_int select_bit;
46     u_int din_bit;
47     u_int dout_bit;
48     };
49    
50     struct nmc93cX6_eeprom_state {
51     u_int cmd_len;
52     u_int cmd_val;
53     u_int state;
54     u_int dataout_pos;
55     u_int dataout_val;
56     };
57    
58     struct nmc93cX6_group {
59     u_int eeprom_type;
60     u_int nr_eeprom;
61     u_int eeprom_reg;
62     char *description;
63     int debug;
64     const struct nmc93cX6_eeprom_def *def[NMC93CX6_MAX_EEPROM_PER_GROUP];
65     struct nmc93cX6_eeprom_state state[NMC93CX6_MAX_EEPROM_PER_GROUP];
66     struct cisco_eeprom *eeprom[NMC93CX6_MAX_EEPROM_PER_GROUP];
67     };
68    
69     /* Handle write */
70     void nmc93cX6_write(struct nmc93cX6_group *g,u_int data);
71    
72     /* Handle read */
73     u_int nmc93cX6_read(struct nmc93cX6_group *p);
74    
75     #endif /* __NMC93CX6_H__ */

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