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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 devopts[] = { | |
34 | SR_CONF_MULTIMETER, | |
35 | SR_CONF_CONTINUOUS, | |
36 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, | |
37 | SR_CONF_LIMIT_MSEC | SR_CONF_SET, | |
38 | }; | |
39 | ||
40 | #define BUF_MAX 50 | |
41 | ||
42 | #define SERIALCOMM "4800/8n1/dtr=1/rts=0/flow=1" | |
43 | ||
44 | SR_PRIV struct sr_dev_driver norma_dmm_driver_info; | |
45 | SR_PRIV struct sr_dev_driver siemens_b102x_driver_info; | |
46 | ||
47 | static const char *get_brandstr(struct sr_dev_driver *drv) | |
48 | { | |
49 | return (drv == &norma_dmm_driver_info) ? "Norma" : "Siemens"; | |
50 | } | |
51 | ||
52 | static const char *get_typestr(int type, struct sr_dev_driver *drv) | |
53 | { | |
54 | static const char *nameref[5][2] = { | |
55 | {"DM910", "B1024"}, | |
56 | {"DM920", "B1025"}, | |
57 | {"DM930", "B1026"}, | |
58 | {"DM940", "B1027"}, | |
59 | {"DM950", "B1028"}, | |
60 | }; | |
61 | ||
62 | if ((type < 1) || (type > 5)) | |
63 | return "Unknown type!"; | |
64 | ||
65 | return nameref[type - 1][(drv == &siemens_b102x_driver_info)]; | |
66 | } | |
67 | ||
68 | static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) | |
69 | { | |
70 | return std_init(sr_ctx, di, LOG_PREFIX); | |
71 | } | |
72 | ||
73 | static GSList *scan(struct sr_dev_driver *drv, GSList *options) | |
74 | { | |
75 | struct sr_dev_inst *sdi; | |
76 | struct drv_context *drvc; | |
77 | struct dev_context *devc; | |
78 | struct sr_config *src; | |
79 | struct sr_serial_dev_inst *serial; | |
80 | GSList *l, *devices; | |
81 | int len, cnt, auxtype; | |
82 | const char *conn, *serialcomm; | |
83 | char *buf; | |
84 | char req[10]; | |
85 | ||
86 | devices = NULL; | |
87 | drvc = drv->context; | |
88 | drvc->instances = NULL; | |
89 | conn = serialcomm = NULL; | |
90 | ||
91 | for (l = options; l; l = l->next) { | |
92 | src = l->data; | |
93 | switch (src->key) { | |
94 | case SR_CONF_CONN: | |
95 | conn = g_variant_get_string(src->data, NULL); | |
96 | break; | |
97 | case SR_CONF_SERIALCOMM: | |
98 | serialcomm = g_variant_get_string(src->data, NULL); | |
99 | break; | |
100 | } | |
101 | } | |
102 | if (!conn) | |
103 | return NULL; | |
104 | if (!serialcomm) | |
105 | serialcomm = SERIALCOMM; | |
106 | ||
107 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
108 | ||
109 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
110 | return NULL; | |
111 | ||
112 | serial_flush(serial); | |
113 | ||
114 | buf = g_malloc(BUF_MAX); | |
115 | ||
116 | snprintf(req, sizeof(req), "%s\r\n", | |
117 | nmadmm_requests[NMADMM_REQ_IDN].req_str); | |
118 | g_usleep(150 * 1000); /* Wait a little to allow serial port to settle. */ | |
119 | for (cnt = 0; cnt < 7; cnt++) { | |
120 | if (serial_write_blocking(serial, req, strlen(req), | |
121 | serial_timeout(serial, strlen(req))) < 0) { | |
122 | sr_err("Unable to send identification request."); | |
123 | return NULL; | |
124 | } | |
125 | len = BUF_MAX; | |
126 | serial_readline(serial, &buf, &len, NMADMM_TIMEOUT_MS); | |
127 | if (!len) | |
128 | continue; | |
129 | buf[BUF_MAX - 1] = '\0'; | |
130 | ||
131 | /* Match ID string, e.g. "1834 065 V1.06,IF V1.02" (DM950). */ | |
132 | if (g_regex_match_simple("^1834 [^,]*,IF V*", (char *)buf, 0, 0)) { | |
133 | auxtype = xgittoint(buf[7]); | |
134 | sr_spew("%s %s DMM %s detected!", get_brandstr(drv), get_typestr(auxtype, drv), buf + 9); | |
135 | ||
136 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
137 | sdi->status = SR_ST_INACTIVE; | |
138 | sdi->vendor = g_strdup(get_brandstr(drv)); | |
139 | sdi->model = g_strdup(get_typestr(auxtype, drv)); | |
140 | sdi->version = g_strdup(buf + 9); | |
141 | devc = g_malloc0(sizeof(struct dev_context)); | |
142 | devc->type = auxtype; | |
143 | devc->version = g_strdup(&buf[9]); | |
144 | devc->elapsed_msec = g_timer_new(); | |
145 | sdi->conn = serial; | |
146 | sdi->priv = devc; | |
147 | sdi->driver = drv; | |
148 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1"); | |
149 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
150 | devices = g_slist_append(devices, sdi); | |
151 | break; | |
152 | } | |
153 | ||
154 | /* | |
155 | * The interface of the DM9x0 contains a cap that needs to | |
156 | * charge for up to 10s before the interface works, if not | |
157 | * powered externally. Therefore wait a little to improve | |
158 | * chances. | |
159 | */ | |
160 | if (cnt == 3) { | |
161 | sr_info("Waiting 5s to allow interface to settle."); | |
162 | g_usleep(5 * 1000 * 1000); | |
163 | } | |
164 | } | |
165 | ||
166 | g_free(buf); | |
167 | ||
168 | serial_close(serial); | |
169 | if (!devices) | |
170 | sr_serial_dev_inst_free(serial); | |
171 | ||
172 | return devices; | |
173 | } | |
174 | ||
175 | static GSList *dev_list(const struct sr_dev_driver *di) | |
176 | { | |
177 | return ((struct drv_context *)(di->context))->instances; | |
178 | } | |
179 | ||
180 | static int dev_close(struct sr_dev_inst *sdi) | |
181 | { | |
182 | struct dev_context *devc; | |
183 | ||
184 | std_serial_dev_close(sdi); | |
185 | ||
186 | /* Free dynamically allocated resources. */ | |
187 | if ((devc = sdi->priv) && devc->version) { | |
188 | g_free(devc->version); | |
189 | devc->version = NULL; | |
190 | g_timer_destroy(devc->elapsed_msec); | |
191 | } | |
192 | ||
193 | return SR_OK; | |
194 | } | |
195 | ||
196 | static int cleanup(const struct sr_dev_driver *di) | |
197 | { | |
198 | return std_dev_clear(di, NULL); | |
199 | } | |
200 | ||
201 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
202 | const struct sr_channel_group *cg) | |
203 | { | |
204 | struct dev_context *devc; | |
205 | ||
206 | (void)cg; | |
207 | ||
208 | if (sdi->status != SR_ST_ACTIVE) | |
209 | return SR_ERR_DEV_CLOSED; | |
210 | ||
211 | if (!(devc = sdi->priv)) { | |
212 | sr_err("sdi->priv was NULL."); | |
213 | return SR_ERR_BUG; | |
214 | } | |
215 | ||
216 | switch (key) { | |
217 | case SR_CONF_LIMIT_MSEC: | |
218 | devc->limit_msec = g_variant_get_uint64(data); | |
219 | break; | |
220 | case SR_CONF_LIMIT_SAMPLES: | |
221 | devc->limit_samples = g_variant_get_uint64(data); | |
222 | break; | |
223 | default: | |
224 | return SR_ERR_NA; | |
225 | } | |
226 | ||
227 | return SR_OK; | |
228 | } | |
229 | ||
230 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
231 | const struct sr_channel_group *cg) | |
232 | { | |
233 | (void)sdi; | |
234 | (void)cg; | |
235 | ||
236 | switch (key) { | |
237 | case SR_CONF_SCAN_OPTIONS: | |
238 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
239 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
240 | break; | |
241 | case SR_CONF_DEVICE_OPTIONS: | |
242 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
243 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
244 | break; | |
245 | default: | |
246 | return SR_ERR_NA; | |
247 | } | |
248 | ||
249 | return SR_OK; | |
250 | } | |
251 | ||
252 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
253 | { | |
254 | struct dev_context *devc; | |
255 | struct sr_serial_dev_inst *serial; | |
256 | ||
257 | if (sdi->status != SR_ST_ACTIVE) | |
258 | return SR_ERR_DEV_CLOSED; | |
259 | ||
260 | devc = sdi->priv; | |
261 | ||
262 | std_session_send_df_header(sdi, LOG_PREFIX); | |
263 | ||
264 | /* Start timer, if required. */ | |
265 | if (devc->limit_msec) | |
266 | g_timer_start(devc->elapsed_msec); | |
267 | ||
268 | /* Poll every 100ms, or whenever some data comes in. */ | |
269 | serial = sdi->conn; | |
270 | serial_source_add(sdi->session, serial, G_IO_IN, 100, | |
271 | norma_dmm_receive_data, (void *)sdi); | |
272 | ||
273 | return SR_OK; | |
274 | } | |
275 | ||
276 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
277 | { | |
278 | struct dev_context *devc; | |
279 | ||
280 | /* Stop timer, if required. */ | |
281 | if (sdi && (devc = sdi->priv) && devc->limit_msec) | |
282 | g_timer_stop(devc->elapsed_msec); | |
283 | ||
284 | return std_serial_dev_acquisition_stop(sdi, dev_close, | |
285 | sdi->conn, LOG_PREFIX); | |
286 | } | |
287 | ||
288 | SR_PRIV struct sr_dev_driver norma_dmm_driver_info = { | |
289 | .name = "norma-dmm", | |
290 | .longname = "Norma DM9x0 DMMs", | |
291 | .api_version = 1, | |
292 | .init = init, | |
293 | .cleanup = cleanup, | |
294 | .scan = scan, | |
295 | .dev_list = dev_list, | |
296 | .dev_clear = NULL, | |
297 | .config_get = NULL, | |
298 | .config_set = config_set, | |
299 | .config_list = config_list, | |
300 | .dev_open = std_serial_dev_open, | |
301 | .dev_close = dev_close, | |
302 | .dev_acquisition_start = dev_acquisition_start, | |
303 | .dev_acquisition_stop = dev_acquisition_stop, | |
304 | .context = NULL, | |
305 | }; | |
306 | ||
307 | SR_PRIV struct sr_dev_driver siemens_b102x_driver_info = { | |
308 | .name = "siemens-b102x", | |
309 | .longname = "Siemens B102x DMMs", | |
310 | .api_version = 1, | |
311 | .init = init, | |
312 | .cleanup = cleanup, | |
313 | .scan = scan, | |
314 | .dev_list = dev_list, | |
315 | .dev_clear = NULL, | |
316 | .config_get = NULL, | |
317 | .config_set = config_set, | |
318 | .config_list = config_list, | |
319 | .dev_open = std_serial_dev_open, | |
320 | .dev_close = dev_close, | |
321 | .dev_acquisition_start = dev_acquisition_start, | |
322 | .dev_acquisition_stop = dev_acquisition_stop, | |
323 | .context = NULL, | |
324 | }; |