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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz> | |
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 | /** @file | |
21 | * Norma DM9x0/Siemens B102x DMMs driver. | |
22 | * @internal | |
23 | */ | |
24 | ||
25 | #include <config.h> | |
26 | #include "protocol.h" | |
27 | ||
28 | static const uint32_t scanopts[] = { | |
29 | SR_CONF_CONN, | |
30 | SR_CONF_SERIALCOMM, | |
31 | }; | |
32 | ||
33 | static const uint32_t drvopts[] = { | |
34 | SR_CONF_MULTIMETER, | |
35 | }; | |
36 | ||
37 | static const uint32_t devopts[] = { | |
38 | SR_CONF_CONTINUOUS, | |
39 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, | |
40 | SR_CONF_LIMIT_MSEC | SR_CONF_SET, | |
41 | }; | |
42 | ||
43 | #define BUF_MAX 50 | |
44 | ||
45 | #define SERIALCOMM "4800/8n1/dtr=1/rts=0/flow=1" | |
46 | ||
47 | static struct sr_dev_driver norma_dmm_driver_info; | |
48 | static struct sr_dev_driver siemens_b102x_driver_info; | |
49 | ||
50 | static const char *get_brandstr(struct sr_dev_driver *drv) | |
51 | { | |
52 | return (drv == &norma_dmm_driver_info) ? "Norma" : "Siemens"; | |
53 | } | |
54 | ||
55 | static const char *get_typestr(int type, struct sr_dev_driver *drv) | |
56 | { | |
57 | static const char *nameref[5][2] = { | |
58 | {"DM910", "B1024"}, | |
59 | {"DM920", "B1025"}, | |
60 | {"DM930", "B1026"}, | |
61 | {"DM940", "B1027"}, | |
62 | {"DM950", "B1028"}, | |
63 | }; | |
64 | ||
65 | if ((type < 1) || (type > 5)) | |
66 | return "Unknown type!"; | |
67 | ||
68 | return nameref[type - 1][(drv == &siemens_b102x_driver_info)]; | |
69 | } | |
70 | ||
71 | static GSList *scan(struct sr_dev_driver *drv, GSList *options) | |
72 | { | |
73 | struct sr_dev_inst *sdi; | |
74 | struct dev_context *devc; | |
75 | struct sr_config *src; | |
76 | struct sr_serial_dev_inst *serial; | |
77 | GSList *l, *devices; | |
78 | int len, cnt, auxtype; | |
79 | const char *conn, *serialcomm; | |
80 | char *buf; | |
81 | char req[10]; | |
82 | ||
83 | devices = NULL; | |
84 | conn = serialcomm = NULL; | |
85 | ||
86 | for (l = options; l; l = l->next) { | |
87 | src = l->data; | |
88 | switch (src->key) { | |
89 | case SR_CONF_CONN: | |
90 | conn = g_variant_get_string(src->data, NULL); | |
91 | break; | |
92 | case SR_CONF_SERIALCOMM: | |
93 | serialcomm = g_variant_get_string(src->data, NULL); | |
94 | break; | |
95 | } | |
96 | } | |
97 | if (!conn) | |
98 | return NULL; | |
99 | if (!serialcomm) | |
100 | serialcomm = SERIALCOMM; | |
101 | ||
102 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
103 | ||
104 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
105 | return NULL; | |
106 | ||
107 | serial_flush(serial); | |
108 | ||
109 | buf = g_malloc(BUF_MAX); | |
110 | ||
111 | snprintf(req, sizeof(req), "%s\r\n", | |
112 | nmadmm_requests[NMADMM_REQ_IDN].req_str); | |
113 | g_usleep(150 * 1000); /* Wait a little to allow serial port to settle. */ | |
114 | for (cnt = 0; cnt < 7; cnt++) { | |
115 | if (serial_write_blocking(serial, req, strlen(req), | |
116 | serial_timeout(serial, strlen(req))) < 0) { | |
117 | sr_err("Unable to send identification request."); | |
118 | return NULL; | |
119 | } | |
120 | len = BUF_MAX; | |
121 | serial_readline(serial, &buf, &len, NMADMM_TIMEOUT_MS); | |
122 | if (!len) | |
123 | continue; | |
124 | buf[BUF_MAX - 1] = '\0'; | |
125 | ||
126 | /* Match ID string, e.g. "1834 065 V1.06,IF V1.02" (DM950). */ | |
127 | if (g_regex_match_simple("^1834 [^,]*,IF V*", (char *)buf, 0, 0)) { | |
128 | auxtype = xgittoint(buf[7]); | |
129 | sr_spew("%s %s DMM %s detected!", get_brandstr(drv), get_typestr(auxtype, drv), buf + 9); | |
130 | ||
131 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
132 | sdi->status = SR_ST_INACTIVE; | |
133 | sdi->vendor = g_strdup(get_brandstr(drv)); | |
134 | sdi->model = g_strdup(get_typestr(auxtype, drv)); | |
135 | sdi->version = g_strdup(buf + 9); | |
136 | devc = g_malloc0(sizeof(struct dev_context)); | |
137 | sr_sw_limits_init(&devc->limits); | |
138 | devc->type = auxtype; | |
139 | sdi->conn = serial; | |
140 | sdi->priv = devc; | |
141 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1"); | |
142 | devices = g_slist_append(devices, sdi); | |
143 | break; | |
144 | } | |
145 | ||
146 | /* | |
147 | * The interface of the DM9x0 contains a cap that needs to | |
148 | * charge for up to 10s before the interface works, if not | |
149 | * powered externally. Therefore wait a little to improve | |
150 | * chances. | |
151 | */ | |
152 | if (cnt == 3) { | |
153 | sr_info("Waiting 5s to allow interface to settle."); | |
154 | g_usleep(5 * 1000 * 1000); | |
155 | } | |
156 | } | |
157 | ||
158 | g_free(buf); | |
159 | ||
160 | serial_close(serial); | |
161 | if (!devices) | |
162 | sr_serial_dev_inst_free(serial); | |
163 | ||
164 | return std_scan_complete(drv, devices); | |
165 | } | |
166 | ||
167 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
168 | const struct sr_channel_group *cg) | |
169 | { | |
170 | struct dev_context *devc; | |
171 | ||
172 | (void)cg; | |
173 | ||
174 | devc = sdi->priv; | |
175 | ||
176 | return sr_sw_limits_config_set(&devc->limits, key, data); | |
177 | } | |
178 | ||
179 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
180 | const struct sr_channel_group *cg) | |
181 | { | |
182 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); | |
183 | } | |
184 | ||
185 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
186 | { | |
187 | struct dev_context *devc; | |
188 | struct sr_serial_dev_inst *serial; | |
189 | ||
190 | devc = sdi->priv; | |
191 | ||
192 | sr_sw_limits_acquisition_start(&devc->limits); | |
193 | std_session_send_df_header(sdi); | |
194 | ||
195 | /* Poll every 100ms, or whenever some data comes in. */ | |
196 | serial = sdi->conn; | |
197 | serial_source_add(sdi->session, serial, G_IO_IN, 100, | |
198 | norma_dmm_receive_data, (void *)sdi); | |
199 | ||
200 | return SR_OK; | |
201 | } | |
202 | ||
203 | static struct sr_dev_driver norma_dmm_driver_info = { | |
204 | .name = "norma-dmm", | |
205 | .longname = "Norma DM9x0 DMMs", | |
206 | .api_version = 1, | |
207 | .init = std_init, | |
208 | .cleanup = std_cleanup, | |
209 | .scan = scan, | |
210 | .dev_list = std_dev_list, | |
211 | .dev_clear = std_dev_clear, | |
212 | .config_get = NULL, | |
213 | .config_set = config_set, | |
214 | .config_list = config_list, | |
215 | .dev_open = std_serial_dev_open, | |
216 | .dev_close = std_serial_dev_close, | |
217 | .dev_acquisition_start = dev_acquisition_start, | |
218 | .dev_acquisition_stop = std_serial_dev_acquisition_stop, | |
219 | .context = NULL, | |
220 | }; | |
221 | SR_REGISTER_DEV_DRIVER(norma_dmm_driver_info); | |
222 | ||
223 | static struct sr_dev_driver siemens_b102x_driver_info = { | |
224 | .name = "siemens-b102x", | |
225 | .longname = "Siemens B102x DMMs", | |
226 | .api_version = 1, | |
227 | .init = std_init, | |
228 | .cleanup = std_cleanup, | |
229 | .scan = scan, | |
230 | .dev_list = std_dev_list, | |
231 | .dev_clear = std_dev_clear, | |
232 | .config_get = NULL, | |
233 | .config_set = config_set, | |
234 | .config_list = config_list, | |
235 | .dev_open = std_serial_dev_open, | |
236 | .dev_close = std_serial_dev_close, | |
237 | .dev_acquisition_start = dev_acquisition_start, | |
238 | .dev_acquisition_stop = std_serial_dev_acquisition_stop, | |
239 | .context = NULL, | |
240 | }; | |
241 | SR_REGISTER_DEV_DRIVER(siemens_b102x_driver_info); |