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bfd48770 MH |
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 | ||
a4e435eb MH |
20 | /** @file |
21 | * Norma DM9x0/Siemens B102x DMMs driver. | |
22 | * @internal | |
23 | */ | |
24 | ||
bfd48770 MH |
25 | #include "protocol.h" |
26 | ||
f8e76e2e MH |
27 | static const int32_t hwopts[] = { |
28 | SR_CONF_CONN, | |
29 | SR_CONF_SERIALCOMM, | |
30 | }; | |
31 | ||
32 | static const int32_t hwcaps[] = { | |
33 | SR_CONF_MULTIMETER, | |
34 | SR_CONF_LIMIT_SAMPLES, | |
35 | SR_CONF_LIMIT_MSEC, | |
36 | SR_CONF_CONTINUOUS, | |
37 | }; | |
38 | ||
e790bd5c | 39 | #define BUF_MAX 50 |
f8e76e2e MH |
40 | |
41 | #define SERIALCOMM "4800/8n1/dtr=1/rts=0/flow=1" | |
42 | ||
bfd48770 | 43 | SR_PRIV struct sr_dev_driver norma_dmm_driver_info; |
49c06128 | 44 | SR_PRIV struct sr_dev_driver siemens_b102x_driver_info; |
bfd48770 | 45 | |
49c06128 | 46 | static const char* get_brandstr(struct sr_dev_driver* drv) |
bfd48770 | 47 | { |
49c06128 MH |
48 | if (drv == &norma_dmm_driver_info) |
49 | return "Norma"; | |
50 | else | |
51 | return "Siemens"; | |
bfd48770 MH |
52 | } |
53 | ||
49c06128 MH |
54 | static const char* get_typestr(int type, struct sr_dev_driver* drv) |
55 | { | |
56 | static const char* nameref[5][2] = { | |
57 | {"DM910", "B1024"}, | |
58 | {"DM920", "B1025"}, | |
59 | {"DM930", "B1026"}, | |
60 | {"DM940", "B1027"}, | |
61 | {"DM950", "B1028"}}; | |
62 | ||
63 | if ((type < 1) || (type > 5)) | |
64 | return "Unknown type!"; | |
65 | ||
66 | return nameref[type-1][(drv == &siemens_b102x_driver_info)]; | |
67 | } | |
68 | ||
69 | static int init_norma_dmm(struct sr_context *sr_ctx) | |
70 | { | |
71 | return std_init(sr_ctx, &norma_dmm_driver_info, LOG_PREFIX); | |
72 | } | |
73 | ||
74 | static int init_siemens_b102x(struct sr_context *sr_ctx) | |
75 | { | |
76 | return std_init(sr_ctx, &siemens_b102x_driver_info, LOG_PREFIX); | |
77 | } | |
78 | ||
79 | static GSList *do_scan(struct sr_dev_driver* drv, GSList *options) | |
bfd48770 | 80 | { |
f8e76e2e | 81 | struct sr_dev_inst *sdi; |
bfd48770 | 82 | struct drv_context *drvc; |
f8e76e2e MH |
83 | struct dev_context *devc; |
84 | struct sr_config *src; | |
ba7dd8bb | 85 | struct sr_channel *ch; |
f8e76e2e MH |
86 | struct sr_serial_dev_inst *serial; |
87 | GSList *l, *devices; | |
88 | int len, cnt; | |
89 | const char *conn, *serialcomm; | |
90 | char *buf; | |
f8e76e2e MH |
91 | char req[10]; |
92 | int auxtype; | |
93 | ||
bfd48770 | 94 | devices = NULL; |
49c06128 | 95 | drvc = drv->priv; |
bfd48770 | 96 | drvc->instances = NULL; |
f8e76e2e MH |
97 | conn = serialcomm = NULL; |
98 | ||
99 | for (l = options; l; l = l->next) { | |
100 | src = l->data; | |
101 | switch (src->key) { | |
102 | case SR_CONF_CONN: | |
103 | conn = g_variant_get_string(src->data, NULL); | |
104 | break; | |
105 | case SR_CONF_SERIALCOMM: | |
106 | serialcomm = g_variant_get_string(src->data, NULL); | |
107 | break; | |
108 | } | |
109 | } | |
110 | if (!conn) | |
111 | return NULL; | |
112 | if (!serialcomm) | |
113 | serialcomm = SERIALCOMM; | |
114 | ||
115 | if (!(serial = sr_serial_dev_inst_new(conn, serialcomm))) | |
116 | return NULL; | |
117 | ||
118 | if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK) | |
119 | return NULL; | |
120 | ||
121 | serial_flush(serial); | |
bfd48770 | 122 | |
e790bd5c | 123 | if (!(buf = g_try_malloc(BUF_MAX))) { |
f8e76e2e MH |
124 | sr_err("Serial buffer malloc failed."); |
125 | return NULL; | |
126 | } | |
127 | ||
128 | snprintf(req, sizeof(req), "%s\r\n", | |
e790bd5c | 129 | nmadmm_requests[NMADMM_REQ_IDN].req_str); |
a4e435eb | 130 | g_usleep(150 * 1000); /* Wait a little to allow serial port to settle. */ |
f8e76e2e MH |
131 | for (cnt = 0; cnt < 7; cnt++) { |
132 | if (serial_write(serial, req, strlen(req)) == -1) { | |
133 | sr_err("Unable to send identification request: %d %s.", | |
e790bd5c | 134 | errno, strerror(errno)); |
f8e76e2e MH |
135 | return NULL; |
136 | } | |
137 | len = BUF_MAX; | |
a4e435eb | 138 | serial_readline(serial, &buf, &len, NMADMM_TIMEOUT_MS); |
f8e76e2e MH |
139 | if (!len) |
140 | continue; | |
e790bd5c | 141 | buf[BUF_MAX - 1] = '\0'; |
f8e76e2e | 142 | |
e790bd5c UH |
143 | /* Match ID string, e.g. "1834 065 V1.06,IF V1.02" (DM950) */ |
144 | if (g_regex_match_simple("^1834 [^,]*,IF V*", (char *)buf, 0, 0)) { | |
f8e76e2e | 145 | auxtype = xgittoint(buf[7]); |
49c06128 | 146 | sr_spew("%s %s DMM %s detected!", get_brandstr(drv), get_typestr(auxtype, drv), buf + 9); |
f8e76e2e MH |
147 | |
148 | if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, | |
49c06128 | 149 | get_brandstr(drv), get_typestr(auxtype, drv), buf + 9))) |
f8e76e2e | 150 | return NULL; |
e790bd5c | 151 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { |
f8e76e2e MH |
152 | sr_err("Device context malloc failed."); |
153 | return NULL; | |
154 | } | |
155 | devc->type = auxtype; | |
156 | devc->version = g_strdup(&buf[9]); | |
157 | devc->elapsed_msec = g_timer_new(); | |
158 | ||
159 | sdi->conn = serial; | |
160 | sdi->priv = devc; | |
49c06128 | 161 | sdi->driver = drv; |
3f239f08 | 162 | if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, |
f8e76e2e MH |
163 | "P1"))) |
164 | return NULL; | |
ba7dd8bb | 165 | sdi->channels = g_slist_append(sdi->channels, ch); |
f8e76e2e MH |
166 | drvc->instances = g_slist_append(drvc->instances, sdi); |
167 | devices = g_slist_append(devices, sdi); | |
168 | break; | |
169 | } | |
e790bd5c UH |
170 | |
171 | /* | |
172 | * The interface of the DM9x0 contains a cap that needs to | |
173 | * charge for up to 10s before the interface works, if not | |
174 | * powered externally. Therefore wait a little to improve | |
175 | * chances. | |
176 | */ | |
f8e76e2e MH |
177 | if (cnt == 3) { |
178 | sr_info("Waiting 5s to allow interface to settle."); | |
179 | g_usleep(5 * 1000 * 1000); | |
180 | } | |
181 | } | |
182 | ||
183 | g_free(buf); | |
184 | ||
185 | serial_close(serial); | |
186 | if (!devices) | |
187 | sr_serial_dev_inst_free(serial); | |
bfd48770 MH |
188 | |
189 | return devices; | |
190 | } | |
191 | ||
49c06128 MH |
192 | static GSList *scan_norma_dmm(GSList *options) |
193 | { | |
194 | return do_scan(&norma_dmm_driver_info, options); | |
195 | } | |
196 | ||
197 | static GSList *scan_siemens_b102x(GSList *options) | |
198 | { | |
199 | return do_scan(&siemens_b102x_driver_info, options); | |
200 | } | |
201 | ||
202 | static GSList *dev_list_norma_dmm(void) | |
203 | { | |
204 | return ((struct drv_context *)(norma_dmm_driver_info.priv))->instances; | |
205 | } | |
206 | ||
207 | static GSList *dev_list_siemens_b102x(void) | |
bfd48770 | 208 | { |
49c06128 | 209 | return ((struct drv_context *)(siemens_b102x_driver_info.priv))->instances; |
bfd48770 MH |
210 | } |
211 | ||
bfd48770 MH |
212 | static int dev_close(struct sr_dev_inst *sdi) |
213 | { | |
f8e76e2e | 214 | struct dev_context *devc; |
bfd48770 | 215 | |
bf2c987f | 216 | std_serial_dev_close(sdi); |
bfd48770 | 217 | |
e790bd5c | 218 | /* Free dynamically allocated resources. */ |
f8e76e2e MH |
219 | if ((devc = sdi->priv) && devc->version) { |
220 | g_free(devc->version); | |
221 | devc->version = NULL; | |
222 | g_timer_destroy(devc->elapsed_msec); | |
223 | } | |
bfd48770 MH |
224 | |
225 | return SR_OK; | |
226 | } | |
227 | ||
49c06128 MH |
228 | static int cleanup_norma_dmm(void) |
229 | { | |
230 | return std_dev_clear(&norma_dmm_driver_info, NULL); | |
231 | } | |
232 | ||
233 | static int cleanup_siemens_b102x(void) | |
bfd48770 | 234 | { |
49c06128 | 235 | return std_dev_clear(&siemens_b102x_driver_info, NULL); |
bfd48770 MH |
236 | } |
237 | ||
d3c74a6f | 238 | static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 239 | const struct sr_channel_group *cg) |
bfd48770 | 240 | { |
f8e76e2e | 241 | struct dev_context *devc; |
bfd48770 | 242 | |
53b4680f | 243 | (void)cg; |
d3c74a6f | 244 | |
bfd48770 MH |
245 | if (sdi->status != SR_ST_ACTIVE) |
246 | return SR_ERR_DEV_CLOSED; | |
247 | ||
f8e76e2e MH |
248 | if (!(devc = sdi->priv)) { |
249 | sr_err("sdi->priv was NULL."); | |
250 | return SR_ERR_BUG; | |
251 | } | |
252 | ||
bfd48770 | 253 | switch (key) { |
f8e76e2e | 254 | case SR_CONF_LIMIT_MSEC: |
f8e76e2e MH |
255 | if (g_variant_get_uint64(data) == 0) { |
256 | sr_err("LIMIT_MSEC can't be 0."); | |
257 | return SR_ERR; | |
258 | } | |
259 | devc->limit_msec = g_variant_get_uint64(data); | |
260 | sr_dbg("Setting time limit to %" PRIu64 "ms.", | |
261 | devc->limit_msec); | |
262 | break; | |
263 | case SR_CONF_LIMIT_SAMPLES: | |
264 | devc->limit_samples = g_variant_get_uint64(data); | |
265 | sr_dbg("Setting sample limit to %" PRIu64 ".", | |
266 | devc->limit_samples); | |
267 | break; | |
bfd48770 | 268 | default: |
f8e76e2e | 269 | return SR_ERR_NA; |
bfd48770 MH |
270 | } |
271 | ||
f8e76e2e | 272 | return SR_OK; |
bfd48770 MH |
273 | } |
274 | ||
d3c74a6f | 275 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 276 | const struct sr_channel_group *cg) |
bfd48770 | 277 | { |
bfd48770 | 278 | (void)sdi; |
53b4680f | 279 | (void)cg; |
bfd48770 | 280 | |
bfd48770 | 281 | switch (key) { |
f8e76e2e MH |
282 | case SR_CONF_SCAN_OPTIONS: |
283 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
284 | hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); | |
285 | break; | |
286 | case SR_CONF_DEVICE_OPTIONS: | |
287 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
288 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
289 | break; | |
bfd48770 MH |
290 | default: |
291 | return SR_ERR_NA; | |
292 | } | |
293 | ||
f8e76e2e | 294 | return SR_OK; |
bfd48770 MH |
295 | } |
296 | ||
297 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, | |
298 | void *cb_data) | |
299 | { | |
f8e76e2e MH |
300 | struct dev_context *devc; |
301 | struct sr_serial_dev_inst *serial; | |
302 | ||
f8e76e2e MH |
303 | if (!sdi || !cb_data || !(devc = sdi->priv)) |
304 | return SR_ERR_BUG; | |
305 | ||
bfd48770 MH |
306 | if (sdi->status != SR_ST_ACTIVE) |
307 | return SR_ERR_DEV_CLOSED; | |
308 | ||
f8e76e2e MH |
309 | devc->cb_data = cb_data; |
310 | ||
311 | /* Send header packet to the session bus. */ | |
312 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
313 | ||
314 | /* Start timer, if required. */ | |
315 | if (devc->limit_msec) | |
316 | g_timer_start(devc->elapsed_msec); | |
317 | ||
318 | /* Poll every 100ms, or whenever some data comes in. */ | |
319 | serial = sdi->conn; | |
102f1239 BV |
320 | serial_source_add(sdi->session, serial, G_IO_IN, 100, |
321 | norma_dmm_receive_data, (void *)sdi); | |
bfd48770 MH |
322 | |
323 | return SR_OK; | |
324 | } | |
325 | ||
326 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
327 | { | |
f8e76e2e | 328 | struct dev_context *devc; |
bfd48770 | 329 | |
f8e76e2e MH |
330 | /* Stop timer, if required. */ |
331 | if (sdi && (devc = sdi->priv) && devc->limit_msec) | |
332 | g_timer_stop(devc->elapsed_msec); | |
bfd48770 | 333 | |
d43b0908 | 334 | return std_serial_dev_acquisition_stop(sdi, cb_data, dev_close, |
f8e76e2e | 335 | sdi->conn, LOG_PREFIX); |
bfd48770 MH |
336 | } |
337 | ||
338 | SR_PRIV struct sr_dev_driver norma_dmm_driver_info = { | |
339 | .name = "norma-dmm", | |
49c06128 MH |
340 | .longname = "Norma DM9x0 DMMs", |
341 | .api_version = 1, | |
342 | .init = init_norma_dmm, | |
343 | .cleanup = cleanup_norma_dmm, | |
344 | .scan = scan_norma_dmm, | |
345 | .dev_list = dev_list_norma_dmm, | |
346 | .dev_clear = NULL, | |
347 | .config_get = NULL, | |
348 | .config_set = config_set, | |
349 | .config_list = config_list, | |
350 | .dev_open = std_serial_dev_open, | |
351 | .dev_close = dev_close, | |
352 | .dev_acquisition_start = dev_acquisition_start, | |
353 | .dev_acquisition_stop = dev_acquisition_stop, | |
354 | .priv = NULL, | |
355 | }; | |
356 | ||
357 | ||
358 | SR_PRIV struct sr_dev_driver siemens_b102x_driver_info = { | |
359 | .name = "siemens-b102x", | |
360 | .longname = "Siemens B102x DMMs", | |
bfd48770 | 361 | .api_version = 1, |
49c06128 MH |
362 | .init = init_siemens_b102x, |
363 | .cleanup = cleanup_siemens_b102x, | |
364 | .scan = scan_siemens_b102x, | |
365 | .dev_list = dev_list_siemens_b102x, | |
a6630742 | 366 | .dev_clear = NULL, |
f8e76e2e | 367 | .config_get = NULL, |
bfd48770 MH |
368 | .config_set = config_set, |
369 | .config_list = config_list, | |
854434de | 370 | .dev_open = std_serial_dev_open, |
bfd48770 MH |
371 | .dev_close = dev_close, |
372 | .dev_acquisition_start = dev_acquisition_start, | |
373 | .dev_acquisition_stop = dev_acquisition_stop, | |
374 | .priv = NULL, | |
375 | }; |