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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2012 Bert Vermeulen <bert@biot.com> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <config.h> | |
21 | #include <glib.h> | |
22 | #include <sys/types.h> | |
23 | #include <sys/stat.h> | |
24 | #include <fcntl.h> | |
25 | #include <string.h> | |
26 | #include <libsigrok/libsigrok.h> | |
27 | #include "libsigrok-internal.h" | |
28 | #include "protocol.h" | |
29 | ||
30 | static const uint32_t scanopts[] = { | |
31 | SR_CONF_CONN, | |
32 | SR_CONF_SERIALCOMM, | |
33 | }; | |
34 | ||
35 | static const uint32_t drvopts[] = { | |
36 | SR_CONF_MULTIMETER, | |
37 | }; | |
38 | ||
39 | static const uint32_t devopts[] = { | |
40 | SR_CONF_CONTINUOUS, | |
41 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, | |
42 | SR_CONF_LIMIT_MSEC | SR_CONF_SET, | |
43 | }; | |
44 | ||
45 | static const char *scan_conn[] = { | |
46 | /* 287/289 */ | |
47 | "115200/8n1", | |
48 | /* 187/189 */ | |
49 | "9600/8n1", | |
50 | /* Scopemeter 190 series */ | |
51 | "1200/8n1", | |
52 | NULL | |
53 | }; | |
54 | ||
55 | static const struct flukedmm_profile supported_flukedmm[] = { | |
56 | { FLUKE_187, "187", 100, 1000 }, | |
57 | { FLUKE_189, "189", 100, 1000 }, | |
58 | { FLUKE_287, "287", 100, 1000 }, | |
59 | { FLUKE_190, "199B", 1000, 3500 }, | |
60 | { FLUKE_289, "289", 100, 1000 }, | |
61 | }; | |
62 | ||
63 | static GSList *fluke_scan(struct sr_dev_driver *di, const char *conn, | |
64 | const char *serialcomm) | |
65 | { | |
66 | struct sr_dev_inst *sdi; | |
67 | struct dev_context *devc; | |
68 | struct sr_serial_dev_inst *serial; | |
69 | GSList *devices; | |
70 | int retry, len, i, s; | |
71 | char buf[128], *b, **tokens; | |
72 | ||
73 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
74 | ||
75 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
76 | return NULL; | |
77 | ||
78 | b = buf; | |
79 | retry = 0; | |
80 | devices = NULL; | |
81 | /* We'll try the discovery sequence three times in case the device | |
82 | * is not in an idle state when we send ID. */ | |
83 | while (!devices && retry < 3) { | |
84 | retry++; | |
85 | serial_flush(serial); | |
86 | if (serial_write_blocking(serial, "ID\r", 3, SERIAL_WRITE_TIMEOUT_MS) < 0) { | |
87 | sr_err("Unable to send ID string"); | |
88 | continue; | |
89 | } | |
90 | ||
91 | /* Response is first a CMD_ACK byte (ASCII '0' for OK, | |
92 | * or '1' to signify an error. */ | |
93 | len = sizeof(buf); | |
94 | serial_readline(serial, &b, &len, 150); | |
95 | if (len != 1) | |
96 | continue; | |
97 | if (buf[0] != '0') | |
98 | continue; | |
99 | ||
100 | /* If CMD_ACK was OK, ID string follows. */ | |
101 | len = sizeof(buf); | |
102 | serial_readline(serial, &b, &len, 850); | |
103 | if (len < 10) | |
104 | continue; | |
105 | if (strcspn(buf, ",") < 15) | |
106 | /* Looks like it's comma-separated. */ | |
107 | tokens = g_strsplit(buf, ",", 3); | |
108 | else | |
109 | /* Fluke 199B, at least, uses semicolon. */ | |
110 | tokens = g_strsplit(buf, ";", 3); | |
111 | if (!strncmp("FLUKE", tokens[0], 5) | |
112 | && tokens[1] && tokens[2]) { | |
113 | for (i = 0; supported_flukedmm[i].model; i++) { | |
114 | if (strcmp(supported_flukedmm[i].modelname, tokens[0] + 6)) | |
115 | continue; | |
116 | /* Skip leading spaces in version number. */ | |
117 | for (s = 0; tokens[1][s] == ' '; s++); | |
118 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
119 | sdi->status = SR_ST_INACTIVE; | |
120 | sdi->vendor = g_strdup("Fluke"); | |
121 | sdi->model = g_strdup(tokens[0] + 6); | |
122 | sdi->version = g_strdup(tokens[1] + s); | |
123 | devc = g_malloc0(sizeof(struct dev_context)); | |
124 | sr_sw_limits_init(&devc->limits); | |
125 | devc->profile = &supported_flukedmm[i]; | |
126 | sdi->inst_type = SR_INST_SERIAL; | |
127 | sdi->conn = serial; | |
128 | sdi->priv = devc; | |
129 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1"); | |
130 | devices = g_slist_append(devices, sdi); | |
131 | break; | |
132 | } | |
133 | } | |
134 | g_strfreev(tokens); | |
135 | if (devices) | |
136 | /* Found one. */ | |
137 | break; | |
138 | } | |
139 | serial_close(serial); | |
140 | if (!devices) | |
141 | sr_serial_dev_inst_free(serial); | |
142 | ||
143 | return std_scan_complete(di, devices); | |
144 | } | |
145 | ||
146 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
147 | { | |
148 | struct sr_config *src; | |
149 | GSList *l, *devices; | |
150 | int i; | |
151 | const char *conn, *serialcomm; | |
152 | ||
153 | conn = serialcomm = NULL; | |
154 | for (l = options; l; l = l->next) { | |
155 | src = l->data; | |
156 | switch (src->key) { | |
157 | case SR_CONF_CONN: | |
158 | conn = g_variant_get_string(src->data, NULL); | |
159 | break; | |
160 | case SR_CONF_SERIALCOMM: | |
161 | serialcomm = g_variant_get_string(src->data, NULL); | |
162 | break; | |
163 | } | |
164 | } | |
165 | if (!conn) | |
166 | return NULL; | |
167 | ||
168 | devices = NULL; | |
169 | if (serialcomm) { | |
170 | /* Use the provided comm specs. */ | |
171 | devices = fluke_scan(di, conn, serialcomm); | |
172 | } else { | |
173 | for (i = 0; scan_conn[i]; i++) { | |
174 | if ((devices = fluke_scan(di, conn, scan_conn[i]))) | |
175 | break; | |
176 | /* The Scopemeter 199B, at least, requires this | |
177 | * after all the 115k/9.6k confusion. */ | |
178 | g_usleep(5 * 1000); | |
179 | } | |
180 | } | |
181 | ||
182 | return devices; | |
183 | } | |
184 | ||
185 | static int config_set(uint32_t key, GVariant *data, | |
186 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
187 | { | |
188 | struct dev_context *devc; | |
189 | ||
190 | (void)cg; | |
191 | ||
192 | devc = sdi->priv; | |
193 | ||
194 | return sr_sw_limits_config_set(&devc->limits, key, data); | |
195 | } | |
196 | ||
197 | static int config_list(uint32_t key, GVariant **data, | |
198 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
199 | { | |
200 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); | |
201 | } | |
202 | ||
203 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
204 | { | |
205 | struct dev_context *devc; | |
206 | struct sr_serial_dev_inst *serial; | |
207 | ||
208 | devc = sdi->priv; | |
209 | ||
210 | sr_sw_limits_acquisition_start(&devc->limits); | |
211 | std_session_send_df_header(sdi); | |
212 | ||
213 | serial = sdi->conn; | |
214 | serial_source_add(sdi->session, serial, G_IO_IN, 50, | |
215 | fluke_receive_data, (void *)sdi); | |
216 | ||
217 | if (serial_write_blocking(serial, "QM\r", 3, SERIAL_WRITE_TIMEOUT_MS) < 0) { | |
218 | sr_err("Unable to send QM."); | |
219 | return SR_ERR; | |
220 | } | |
221 | devc->cmd_sent_at = g_get_monotonic_time() / 1000; | |
222 | devc->expect_response = TRUE; | |
223 | ||
224 | return SR_OK; | |
225 | } | |
226 | ||
227 | static struct sr_dev_driver flukedmm_driver_info = { | |
228 | .name = "fluke-dmm", | |
229 | .longname = "Fluke 18x/28x series DMMs", | |
230 | .api_version = 1, | |
231 | .init = std_init, | |
232 | .cleanup = std_cleanup, | |
233 | .scan = scan, | |
234 | .dev_list = std_dev_list, | |
235 | .dev_clear = std_dev_clear, | |
236 | .config_get = NULL, | |
237 | .config_set = config_set, | |
238 | .config_list = config_list, | |
239 | .dev_open = std_serial_dev_open, | |
240 | .dev_close = std_serial_dev_close, | |
241 | .dev_acquisition_start = dev_acquisition_start, | |
242 | .dev_acquisition_stop = std_serial_dev_acquisition_stop, | |
243 | .context = NULL, | |
244 | }; | |
245 | SR_REGISTER_DEV_DRIVER(flukedmm_driver_info); |