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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 | static struct sr_dev_driver norma_dmm_driver_info; | |
45 | static 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 GSList *scan(struct sr_dev_driver *drv, GSList *options) | |
69 | { | |
70 | struct sr_dev_inst *sdi; | |
71 | struct dev_context *devc; | |
72 | struct sr_config *src; | |
73 | struct sr_serial_dev_inst *serial; | |
74 | GSList *l, *devices; | |
75 | int len, cnt, auxtype; | |
76 | const char *conn, *serialcomm; | |
77 | char *buf; | |
78 | char req[10]; | |
79 | ||
80 | devices = NULL; | |
81 | conn = serialcomm = NULL; | |
82 | ||
83 | for (l = options; l; l = l->next) { | |
84 | src = l->data; | |
85 | switch (src->key) { | |
86 | case SR_CONF_CONN: | |
87 | conn = g_variant_get_string(src->data, NULL); | |
88 | break; | |
89 | case SR_CONF_SERIALCOMM: | |
90 | serialcomm = g_variant_get_string(src->data, NULL); | |
91 | break; | |
92 | } | |
93 | } | |
94 | if (!conn) | |
95 | return NULL; | |
96 | if (!serialcomm) | |
97 | serialcomm = SERIALCOMM; | |
98 | ||
99 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
100 | ||
101 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
102 | return NULL; | |
103 | ||
104 | serial_flush(serial); | |
105 | ||
106 | buf = g_malloc(BUF_MAX); | |
107 | ||
108 | snprintf(req, sizeof(req), "%s\r\n", | |
109 | nmadmm_requests[NMADMM_REQ_IDN].req_str); | |
110 | g_usleep(150 * 1000); /* Wait a little to allow serial port to settle. */ | |
111 | for (cnt = 0; cnt < 7; cnt++) { | |
112 | if (serial_write_blocking(serial, req, strlen(req), | |
113 | serial_timeout(serial, strlen(req))) < 0) { | |
114 | sr_err("Unable to send identification request."); | |
115 | return NULL; | |
116 | } | |
117 | len = BUF_MAX; | |
118 | serial_readline(serial, &buf, &len, NMADMM_TIMEOUT_MS); | |
119 | if (!len) | |
120 | continue; | |
121 | buf[BUF_MAX - 1] = '\0'; | |
122 | ||
123 | /* Match ID string, e.g. "1834 065 V1.06,IF V1.02" (DM950). */ | |
124 | if (g_regex_match_simple("^1834 [^,]*,IF V*", (char *)buf, 0, 0)) { | |
125 | auxtype = xgittoint(buf[7]); | |
126 | sr_spew("%s %s DMM %s detected!", get_brandstr(drv), get_typestr(auxtype, drv), buf + 9); | |
127 | ||
128 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
129 | sdi->status = SR_ST_INACTIVE; | |
130 | sdi->vendor = g_strdup(get_brandstr(drv)); | |
131 | sdi->model = g_strdup(get_typestr(auxtype, drv)); | |
132 | sdi->version = g_strdup(buf + 9); | |
133 | devc = g_malloc0(sizeof(struct dev_context)); | |
134 | sr_sw_limits_init(&devc->limits); | |
135 | devc->type = auxtype; | |
136 | sdi->conn = serial; | |
137 | sdi->priv = devc; | |
138 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1"); | |
139 | devices = g_slist_append(devices, sdi); | |
140 | break; | |
141 | } | |
142 | ||
143 | /* | |
144 | * The interface of the DM9x0 contains a cap that needs to | |
145 | * charge for up to 10s before the interface works, if not | |
146 | * powered externally. Therefore wait a little to improve | |
147 | * chances. | |
148 | */ | |
149 | if (cnt == 3) { | |
150 | sr_info("Waiting 5s to allow interface to settle."); | |
151 | g_usleep(5 * 1000 * 1000); | |
152 | } | |
153 | } | |
154 | ||
155 | g_free(buf); | |
156 | ||
157 | serial_close(serial); | |
158 | if (!devices) | |
159 | sr_serial_dev_inst_free(serial); | |
160 | ||
161 | return std_scan_complete(drv, devices); | |
162 | } | |
163 | ||
164 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
165 | const struct sr_channel_group *cg) | |
166 | { | |
167 | struct dev_context *devc; | |
168 | ||
169 | (void)cg; | |
170 | ||
171 | if (sdi->status != SR_ST_ACTIVE) | |
172 | return SR_ERR_DEV_CLOSED; | |
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 | (void)sdi; | |
183 | (void)cg; | |
184 | ||
185 | switch (key) { | |
186 | case SR_CONF_SCAN_OPTIONS: | |
187 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
188 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
189 | break; | |
190 | case SR_CONF_DEVICE_OPTIONS: | |
191 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
192 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
193 | break; | |
194 | default: | |
195 | return SR_ERR_NA; | |
196 | } | |
197 | ||
198 | return SR_OK; | |
199 | } | |
200 | ||
201 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
202 | { | |
203 | struct dev_context *devc; | |
204 | struct sr_serial_dev_inst *serial; | |
205 | ||
206 | if (sdi->status != SR_ST_ACTIVE) | |
207 | return SR_ERR_DEV_CLOSED; | |
208 | ||
209 | devc = sdi->priv; | |
210 | ||
211 | sr_sw_limits_acquisition_start(&devc->limits); | |
212 | std_session_send_df_header(sdi); | |
213 | ||
214 | /* Poll every 100ms, or whenever some data comes in. */ | |
215 | serial = sdi->conn; | |
216 | serial_source_add(sdi->session, serial, G_IO_IN, 100, | |
217 | norma_dmm_receive_data, (void *)sdi); | |
218 | ||
219 | return SR_OK; | |
220 | } | |
221 | ||
222 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
223 | { | |
224 | return std_serial_dev_acquisition_stop(sdi, std_serial_dev_close); | |
225 | } | |
226 | ||
227 | static struct sr_dev_driver norma_dmm_driver_info = { | |
228 | .name = "norma-dmm", | |
229 | .longname = "Norma DM9x0 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 = NULL, | |
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 = dev_acquisition_stop, | |
243 | .context = NULL, | |
244 | }; | |
245 | SR_REGISTER_DEV_DRIVER(norma_dmm_driver_info); | |
246 | ||
247 | static struct sr_dev_driver siemens_b102x_driver_info = { | |
248 | .name = "siemens-b102x", | |
249 | .longname = "Siemens B102x DMMs", | |
250 | .api_version = 1, | |
251 | .init = std_init, | |
252 | .cleanup = std_cleanup, | |
253 | .scan = scan, | |
254 | .dev_list = std_dev_list, | |
255 | .dev_clear = NULL, | |
256 | .config_get = NULL, | |
257 | .config_set = config_set, | |
258 | .config_list = config_list, | |
259 | .dev_open = std_serial_dev_open, | |
260 | .dev_close = std_serial_dev_close, | |
261 | .dev_acquisition_start = dev_acquisition_start, | |
262 | .dev_acquisition_stop = dev_acquisition_stop, | |
263 | .context = NULL, | |
264 | }; | |
265 | SR_REGISTER_DEV_DRIVER(siemens_b102x_driver_info); |