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[usb-driver] / config.c
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3e670223 1#include <stdio.h>
2#include <stdlib.h>
25ba7a49 3#include <inttypes.h>
61e0de7a 4#include <string.h>
25ba7a49 5#include "usb-driver.h"
6#include "parport.h"
7#ifdef JTAGKEY
8#include "jtagkey.h"
9#endif
3e670223 10#include "config.h"
11
61e0de7a 12#define LINELEN 1024
13
14#define PARSEERROR fprintf(stderr,"LIBUSB-DRIVER WARNING: Invalid config statement at line %d\n", line)
15
3e670223 16static struct parport_config pp_config[4];
17
18static void read_config() {
19 int i;
20 static int config_read = 0;
61e0de7a 21 FILE *cfg;
c6338a01 22 char buf[LINELEN];
23#ifdef JTAGKEY
24 char *pbuf;
61e0de7a 25 unsigned short vid, pid;
c6338a01 26 int line, len, num;
27#endif
3e670223 28
29 if (config_read)
30 return;
31
32 config_read = 1;
33
34 for (i=0; i<sizeof(pp_config)/sizeof(struct parport_config); i++) {
35 pp_config[i].num = i;
36 pp_config[i].ppbase = i*0x10;
37 pp_config[i].real = 1;
25ba7a49 38 pp_config[i].open = parport_open;
39 pp_config[i].close = parport_close;
40 pp_config[i].transfer = parport_transfer;
3e670223 41 }
42
61e0de7a 43 snprintf(buf, sizeof(buf), "%s/.libusb-driverrc", getenv("HOME"));
44
45 cfg = fopen(buf, "r");
46 if (cfg) {
3e670223 47#ifdef JTAGKEY
61e0de7a 48 line = 0;
49 do {
50 pbuf = fgets(buf, sizeof(buf), cfg);
51 if (!pbuf)
52 break;
53
54 line++;
55
56 len = strlen(buf);
57
58 if (len > 0 && buf[len-1] == '\n') {
59 buf[len-1] = '\0';
60 len--;
61 }
62 if (len > 0 && buf[len-1] == '\r') {
63 buf[len-1] = '\0';
64 len--;
65 }
66
67 for (i = 0; i < len; i++) {
68 if (buf[i] != ' ' && buf[i] != '\t')
69 break;
70 }
71
72 if (buf[i] == '#' || buf[i] == ';' || buf[i] == '\0')
73 continue;
74
75 if (!strncasecmp(buf+i, "LPT", 3)) {
76 unsigned char equal_seen = 0;
77
78 i += 3;
79 pbuf = buf+i;
80 for (; i < len; i++) {
81 if (buf[i] == ' ' || buf[i] == '\t' || buf[i] == '=') {
82 if (buf[i] == '=')
83 equal_seen = 1;
84
85 buf[i] = '\0';
86 i++;
87 break;
88 }
89 }
90
91 if (*pbuf == '\0') {
92 PARSEERROR;
93 continue;
94 }
95
96 num = 0;
97 num = strtol(pbuf, NULL, 10);
98 if (num < 1) {
99 PARSEERROR;
100 continue;
101 }
102 num--;
103
104 for (; (i < len) && (!equal_seen) ; i++) {
105 if (buf[i] == '=') {
106 equal_seen = 1;
107 i++;
108 break;
109 } else if (buf[i] != ' ' && buf[i] != '\t') {
110 break;
111 }
112 }
113
114 if (!equal_seen) {
115 PARSEERROR;
116 continue;
117 }
118
119 for (; i < len; i++) {
120 if (buf[i] != ' ' && buf[i] != '\t')
121 break;
122 }
123
124 if (strncasecmp(buf+i, "FTDI:", 5)) {
125 PARSEERROR;
126 continue;
127 }
128
129 i += 5;
130 pbuf = buf + i;
131
132 for (; i < len; i++) {
133 if (buf[i] == ':')
134 break;
135 }
136
137 if (buf[i] != ':') {
138 PARSEERROR;
139 continue;
140 }
141
142 buf[i] = '\0';
143
144 vid = 0;
145 vid = strtol(pbuf, NULL, 16);
146 if (!num) {
147 PARSEERROR;
148 continue;
149 }
150
151 i++;
152 pbuf = buf + i;
153
154 for (; i < len; i++) {
155 if (buf[i] == ' ' || buf[i] == '\t')
156 break;
157 }
158
159 pid = 0;
160 pid = strtol(pbuf, NULL, 16);
161 if (!num) {
162 PARSEERROR;
163 continue;
164 }
165
166 pp_config[num].real = 0;
167 pp_config[num].usb_vid = vid;
168 pp_config[num].usb_pid = pid;
169 pp_config[num].open = jtagkey_open;
170 pp_config[num].close = jtagkey_close;
171 pp_config[num].transfer = jtagkey_transfer;
172 } else {
173 PARSEERROR;
174 }
175 } while (pbuf);
176#else
177 fprintf(stderr,"libusb-driver not compiled with FTDI2232-support, config file ignored!\n");
3e670223 178#endif
61e0de7a 179 fclose(cfg);
180 }
3e670223 181}
182
25ba7a49 183struct parport_config *config_get(int num) {
184 struct parport_config *ret = NULL;
185 int i;
186
187 read_config();
188
189 for (i=0; i<sizeof(pp_config)/sizeof(struct parport_config); i++) {
190 if (pp_config[i].num == num) {
191 ret = &(pp_config[i]);
192 break;
193 }
194 }
195
196 return ret;
197}
198
3e670223 199unsigned char config_is_real_pport(int num) {
200 int ret = 1;
201 int i;
202
203 read_config();
204
205 for (i=0; i<sizeof(pp_config)/sizeof(struct parport_config); i++) {
206 if (pp_config[i].num == num) {
207 ret = pp_config[i].real;
208 break;
209 }
210 }
211
212 return ret;
213}
214
215unsigned short config_usb_vid(int num) {
216 unsigned short ret = 0x00;
217 int i;
218
219 read_config();
220
221 for (i=0; i<sizeof(pp_config)/sizeof(struct parport_config); i++) {
222 if (pp_config[i].num == num) {
223 ret = pp_config[i].usb_vid;
224 break;
225 }
226 }
227
228 return ret;
229}
230
231unsigned short config_usb_pid(int num) {
232 unsigned short ret = 0x00;
233 int i;
234
235 read_config();
236
237 for (i=0; i<sizeof(pp_config)/sizeof(struct parport_config); i++) {
238 if (pp_config[i].num == num) {
239 ret = pp_config[i].usb_pid;
240 break;
241 }
242 }
243
244 return ret;
245}
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