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de1916b0 JW |
1 | /* libnexys.c |
2 | * DPCUTIL compatibility driver for libnexys | |
3 | * libnexys, a free driver for Digilent NEXYS2 boards | |
4 | * | |
5 | * Copyright (c) 2007-2008 Joshua Wise | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License. | |
10 | * | |
11 | * Commercial licenses are available by request. | |
12 | */ | |
13 | ||
5ee943f9 JW |
14 | #define LIBNEXYS_INTERNAL |
15 | #include "libnexys.h" | |
16 | #include <stdio.h> | |
17 | ||
18 | nexys2_t nexys2_init(void) { | |
19 | int device; | |
20 | char devname[32]; | |
21 | HANDLE hand; | |
22 | ERC erc; | |
23 | ||
24 | if (!DpcInit(&erc)) | |
25 | { | |
26 | printf("DpcInit failed\n"); | |
27 | return NULL; | |
28 | } | |
29 | ||
30 | if ((device = DvmgGetDefaultDev(&erc)) == -1) | |
31 | { | |
32 | printf("We appear to lack a default device. Sadface :(\n"); | |
33 | return NULL; | |
34 | } | |
35 | ||
36 | DvmgGetDevName(device, devname, &erc); | |
37 | printf("Interacting with device %d (%s)\n", device, devname); | |
38 | ||
39 | if (!DpcOpenJtag(&hand, devname, &erc, NULL)) | |
40 | { | |
41 | printf("JTAG open failed\n"); | |
42 | return NULL; | |
43 | } | |
44 | return hand; | |
45 | } | |
46 | ||
47 | int nexys2_jtag_enable(HANDLE hand) | |
48 | { | |
49 | ERC erc; | |
50 | return DpcEnableJtag(hand, &erc, NULL) ? 0 : -1; | |
51 | } | |
52 | ||
53 | int nexys2_jtag_disable(HANDLE hand) | |
54 | { | |
55 | ERC erc; | |
56 | return DpcDisableJtag(hand, &erc, NULL) ? 0 : -1; | |
57 | } | |
58 | ||
59 | int nexys2_jtag_setbits(HANDLE hand, int tms, int tdi, int tck) | |
60 | { | |
61 | ERC erc; | |
62 | return DpcSetTmsTdiTck(hand, tms, tdi, tck, &erc, NULL) ? 0 : -1; | |
63 | } | |
64 | ||
65 | int nexys2_jtag_puttdi(HANDLE hand, int tms, int nbits, unsigned char *bits, unsigned char *obits) | |
66 | { | |
67 | ERC erc; | |
68 | return DpcPutTdiBits(hand, nbits, bits, tms, obits ? 1 : 0, obits, &erc, NULL) ? 0 : -1; | |
69 | } | |
70 | ||
71 | int nexys2_jtag_puttmstdi(HANDLE hand, int nbits, unsigned char *bits, unsigned char *obits) | |
72 | { | |
73 | ERC erc; | |
74 | return DpcPutTmsTdiBits(hand, nbits, bits, obits ? 1 : 0, obits, &erc, NULL) ? 0 : -1; | |
75 | } | |
76 | ||
77 | int nexys2_jtag_gettdo(HANDLE hand, int tdi, int tms, int nbits, unsigned char *obits) | |
78 | { | |
79 | ERC erc; | |
80 | return DpcGetTdoBits(hand, nbits, tdi, tms, obits, &erc, NULL) ? 0 : -1; | |
81 | } |